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Author SHA1 Message Date
Paris Kasidiaris 45ed27d329 Bump version to 3.0.1
Signed-off-by: Paris Kasidiaris <paris@sourcelair.com>
2018-01-05 16:46:38 +00:00
473 changed files with 27831 additions and 65310 deletions
-23
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@@ -1,23 +0,0 @@
FROM node:14-buster
# Configure apt
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update \
&& apt-get -y install --no-install-recommends apt-utils 2>&1
# Verify git and process tools are installed
RUN apt-get install -y git procps
# Install yarn
RUN apt-get install -y curl apt-transport-https lsb-release \
&& curl -sS https://dl.yarnpkg.com/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/pubkey.gpg | apt-key add - 2>/dev/null \
&& echo "deb https://dl.yarnpkg.com/$(lsb_release -is | tr '[:upper:]' '[:lower:]')/ stable main" | tee /etc/apt/sources.list.d/yarn.list \
&& apt-get update \
&& apt-get -y install --no-install-recommends \
yarn
# Clean up
RUN apt-get autoremove -y \
&& apt-get clean -y \
&& rm -rf /var/lib/apt/lists/*
ENV DEBIAN_FRONTEND=dialog
-10
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@@ -1,10 +0,0 @@
{
"name": "xterm.js",
"dockerFile": "Dockerfile",
"appPort": 3000,
"extensions": [
"dbaeumer.vscode-eslint",
"editorconfig.editorconfig",
"hbenl.vscode-mocha-test-adapter"
]
}
+16
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@@ -0,0 +1,16 @@
node_modules/
*.swp
.lock-wscript
lib/
Makefile.gyp
*.Makefile
*.target.gyp.mk
*.node
example/*.log
docs/
npm-debug.log
/.idea/
.env
build/
.vscode/
.git/
-202
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@@ -1,202 +0,0 @@
{
"env": {
"browser": true,
"es6": true,
"node": true
},
"parser": "@typescript-eslint/parser",
"parserOptions": {
"project": [
"src/browser/tsconfig.json",
"src/common/tsconfig.json",
"src/headless/tsconfig.json",
"test/api/tsconfig.json",
"test/benchmark/tsconfig.json",
"addons/xterm-addon-attach/src/tsconfig.json",
"addons/xterm-addon-attach/test/tsconfig.json",
"addons/xterm-addon-canvas/src/tsconfig.json",
"addons/xterm-addon-fit/src/tsconfig.json",
"addons/xterm-addon-fit/test/tsconfig.json",
"addons/xterm-addon-ligatures/src/tsconfig.json",
"addons/xterm-addon-search/src/tsconfig.json",
"addons/xterm-addon-search/test/tsconfig.json",
"addons/xterm-addon-serialize/src/tsconfig.json",
"addons/xterm-addon-serialize/test/tsconfig.json",
"addons/xterm-addon-serialize/benchmark/tsconfig.json",
"addons/xterm-addon-unicode11/src/tsconfig.json",
"addons/xterm-addon-unicode11/test/tsconfig.json",
"addons/xterm-addon-web-links/src/tsconfig.json",
"addons/xterm-addon-web-links/test/tsconfig.json",
"addons/xterm-addon-webgl/src/tsconfig.json",
"addons/xterm-addon-webgl/test/tsconfig.json"
],
"sourceType": "module"
},
"ignorePatterns": [
"**/typings/*.d.ts",
"**/node_modules",
"**/*.js"
],
"plugins": [
"@typescript-eslint"
],
"rules": {
"no-extra-semi": "error",
"@typescript-eslint/array-type": [
"warn",
{
"default": "array",
"readonly": "generic"
}
],
"@typescript-eslint/consistent-type-assertions": "warn",
"@typescript-eslint/consistent-type-definitions": "warn",
"@typescript-eslint/explicit-function-return-type": [
"warn",
{
"allowExpressions": true
}
],
"@typescript-eslint/explicit-member-accessibility": [
"warn",
{
"accessibility": "explicit",
"overrides": {
"constructors": "off"
}
}
],
"@typescript-eslint/indent": [
"warn",
2
],
"@typescript-eslint/member-delimiter-style": [
"warn",
{
"multiline": {
"delimiter": "semi",
"requireLast": true
},
"singleline": {
"delimiter": "comma",
"requireLast": false
}
}
],
"@typescript-eslint/naming-convention": [
"warn",
{ "selector": "default", "format": ["camelCase"] },
// variableLike
{ "selector": "variable", "format": ["camelCase", "UPPER_CASE"] },
{ "selector": "variable", "filter": "^I.+Service$", "format": ["PascalCase"], "prefix": ["I"] },
// memberLike
{ "selector": "memberLike", "modifiers": ["private"], "format": ["camelCase"], "leadingUnderscore": "require" },
{ "selector": "memberLike", "modifiers": ["protected"], "format": ["camelCase"], "leadingUnderscore": "require" },
{ "selector": "enumMember", "format": ["UPPER_CASE"] },
// memberLike - Allow enum-like objects to use UPPER_CASE
{ "selector": "property", "modifiers": ["public"], "format": ["camelCase", "UPPER_CASE"] },
{ "selector": "method", "modifiers": ["public"], "format": ["camelCase", "UPPER_CASE"] },
// typeLike
{ "selector": "typeLike", "format": ["PascalCase"] },
{ "selector": "interface", "format": ["PascalCase"], "prefix": ["I"] }
],
"@typescript-eslint/prefer-namespace-keyword": "warn",
"@typescript-eslint/type-annotation-spacing": "warn",
"@typescript-eslint/quotes": [
"warn",
"single",
{ "allowTemplateLiterals": true }
],
"@typescript-eslint/semi": [
"warn",
"always"
],
"comma-dangle": [
"warn",
{
"objects": "never",
"arrays": "never",
"functions": "never"
}
],
"curly": [
"warn",
"multi-line"
],
"eol-last": "warn",
"eqeqeq": [
"warn",
"always"
],
"keyword-spacing": "warn",
"new-parens": "warn",
"no-duplicate-imports": "warn",
"no-else-return": [
"warn",
{
"allowElseIf": false
}
],
"no-eval": "warn",
"no-irregular-whitespace": "warn",
"no-restricted-imports": [
"warn",
{
"patterns": [
".*\\/out\\/.*"
]
}
],
"no-restricted-syntax": [
"warn",
{
"selector": "CallExpression[callee.name='requestAnimationFrame']",
"message": "The global requestAnimationFrame() should be avoided, call it on the parent window from ICoreBrowserService."
},
{
"selector": "CallExpression[callee.name='cancelAnimationFrame']",
"message": "The global cancelAnimationFrame() should be avoided, call it on the parent window from ICoreBrowserService."
},
{
"selector": "CallExpression > MemberExpression[object.name='window'][property.name='requestAnimationFrame']",
"message": "window.requestAnimationFrame() should be avoided, call it on the parent window from ICoreBrowserService."
},
{
"selector": "CallExpression > MemberExpression[object.name='window'][property.name='cancelAnimationFrame']",
"message": "window.cancelAnimationFrame() should be avoided, call it on the parent window from ICoreBrowserService."
},
{
"selector": "MemberExpression[object.name='window'][property.name='devicePixelRatio']",
"message": "window.devicePixelRatio should be avoided, get it from ICoreBrowserService."
}
],
"no-trailing-spaces": "warn",
"no-unsafe-finally": "warn",
"no-var": "warn",
"one-var": [
"warn",
"never"
],
"object-curly-spacing": [
"warn",
"always"
],
"prefer-const": "warn",
"spaced-comment": [
"warn",
"always",
{
"markers": ["/"],
"exceptions": ["-"]
}
]
},
"overrides": [
{
"files": ["**/*.test.ts"],
"rules": {
"object-curly-spacing": "off"
}
}
]
}
+11
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@@ -0,0 +1,11 @@
<!-- Enter your issue description here -->
## Details
- Browser and browser version:
- OS version:
- xterm.js version:
### Steps to reproduce
1.
2.
-17
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@@ -1,17 +0,0 @@
---
name: Bug report
about: Create a bug report
---
<!-- ⚠️ Please search existing issues to avoid creating duplicates. ⚠️ -->
<!-- Describe the bug here. -->
## Details
- Browser and browser version:
- OS version:
- xterm.js version:
### Steps to reproduce
1.
2.
-5
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@@ -1,5 +0,0 @@
blank_issues_enabled: false
contact_links:
- name: Question
url: https://stackoverflow.com/questions/tagged/xtermjs
about: Please ask and answer questions here.
@@ -1,7 +0,0 @@
---
name: Feature request
about: Suggest a feature or enhancement
---
<!-- ⚠️ Please search existing issues to avoid creating duplicates. ⚠️ -->
<!-- Describe the enhancement here. -->
-72
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@@ -1,72 +0,0 @@
# For most projects, this workflow file will not need changing; you simply need
# to commit it to your repository.
#
# You may wish to alter this file to override the set of languages analyzed,
# or to provide custom queries or build logic.
#
# ******** NOTE ********
# We have attempted to detect the languages in your repository. Please check
# the `language` matrix defined below to confirm you have the correct set of
# supported CodeQL languages.
#
name: "CodeQL"
on:
push:
branches: [ "master" ]
pull_request:
# The branches below must be a subset of the branches above
branches: [ "master" ]
schedule:
- cron: '41 17 * * 0'
jobs:
analyze:
name: Analyze
runs-on: ubuntu-latest
permissions:
actions: read
contents: read
security-events: write
strategy:
fail-fast: false
matrix:
language: [ 'javascript' ]
# CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
# Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
steps:
- name: Checkout repository
uses: actions/checkout@v3
# Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL
uses: github/codeql-action/init@v2
with:
languages: ${{ matrix.language }}
# If you wish to specify custom queries, you can do so here or in a config file.
# By default, queries listed here will override any specified in a config file.
# Prefix the list here with "+" to use these queries and those in the config file.
# Details on CodeQL's query packs refer to : https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
# queries: security-extended,security-and-quality
# Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
# If this step fails, then you should remove it and run the build manually (see below)
- name: Autobuild
uses: github/codeql-action/autobuild@v2
# ℹ️ Command-line programs to run using the OS shell.
# 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
# If the Autobuild fails above, remove it and uncomment the following three lines.
# modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
# - run: |
# echo "Run, Build Application using script"
# ./location_of_script_within_repo/buildscript.sh
- name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@v2
+10 -9
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@@ -2,9 +2,6 @@ node_modules/
*.swp
.lock-wscript
lib/
out/
out-test/
.nyc_output/
Makefile.gyp
*.Makefile
*.target.gyp.mk
@@ -15,13 +12,17 @@ npm-debug.log
/.idea/
.env
build/
.vscode/
.DS_Store
package-lock.json
fixtures/typings-test/*.js
# Keep bundled code out of Git
# Directories needed for code coverage
/coverage/
# Keep legacy files out of the repo, this can be removed when we merge v3 into master
dist/
demo/dist/
src/utils/TestUtils.ts
src/xterm.js
# dont commit benchmark folders
.benchmark/
timeline/
# Keep the demo builds out of Git
demo/dist/
-1
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@@ -1 +0,0 @@
NODE_PATH=./out
-5
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@@ -1,5 +0,0 @@
require:
- source-map-support/register
reporter: spec
color: true
check-leaks: true
+16 -42
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@@ -1,42 +1,16 @@
# Blacklist - exclude everything except npm defaults such as LICENSE, etc
*
!*/
# Whitelist - css/
!css/**/*.css
# Whitelist - dist/
!dist/**/*.js
!dist/**/*.js.map
!dist/**/*.css
# Whitelist - lib/
!lib/**/*.d.ts
!lib/**/*.js
!lib/**/*.js.map
!lib/**/*.css
# Whitelist - src/
!src/**/*.ts
!src/**/*.d.ts
!src/**/*.js
!src/**/*.js.map
!src/**/*.css
# Blacklist - src/ test files
src/**/*.test.ts
src/**/*.test.d.ts
src/**/*.test.js
src/**/*.test.js.map
# Whitelist - typings/
!typings/*.d.ts
# Blacklist - (normal behavior) these will override any whitelist
headless/
typings/xterm-headless.d.ts
node_modules/
*.swp
.lock-wscript
lib/*.test.js
lib/*.test.js.map
lib/test/
Makefile.gyp
*.Makefile
*.target.gyp.mk
*.node
example/*.log
docs/
npm-debug.log
/.idea/
.env
build/
-1
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@@ -1 +0,0 @@
package-lock=false
+20
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@@ -0,0 +1,20 @@
language: node_js
os:
- linux
- osx
node_js:
- 6
before_install:
- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test ; fi
- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get -qq update ; fi
- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get -qq install g++-4.8 ; fi
- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then export CXX=g++-4.8 ; fi
- npm install -g npm@5.1.0
env:
matrix:
- NPM_COMMAND=lint
- NPM_COMMAND=test
notifications:
email: false
script: npm run $NPM_COMMAND
after_success: npm run coveralls
+2 -45
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@@ -4,7 +4,7 @@
{
"type": "node",
"request": "launch",
"name": "Unit Tests",
"name": "Mocha Tests",
"cwd": "${workspaceRoot}",
"runtimeExecutable": "${workspaceRoot}/node_modules/.bin/mocha",
"windows": {
@@ -13,54 +13,11 @@
"runtimeArgs": [
"--colors",
"--recursive",
"${workspaceRoot}/out/**/*.test.js"
],
"env": {
"NODE_PATH": "${workspaceRoot}/out"
},
"sourceMaps": true,
"outFiles": [ "${workspaceRoot}/out/**/*.js" ],
"internalConsoleOptions": "openOnSessionStart"
},
{
"type": "node",
"request": "launch",
"name": "Integration Tests",
"cwd": "${workspaceRoot}",
"runtimeExecutable": "${workspaceRoot}/node_modules/.bin/mocha",
"windows": {
"runtimeExecutable": "${workspaceRoot}/node_modules/.bin/mocha.cmd"
},
"runtimeArgs": [
"--colors",
"--recursive",
"${workspaceRoot}/out/**/*.api.js"
"${workspaceRoot}/lib"
],
"sourceMaps": true,
"outFiles": [ "${workspaceRoot}/lib/**/*.js" ],
"internalConsoleOptions": "openOnSessionStart"
},
{
"type": "chrome",
"request": "launch",
"name": "Demo Client",
"url": "http://127.0.0.1:3000",
"webRoot": "${workspaceFolder}/"
},
{
"type": "node",
"request": "launch",
"name": "Demo Server",
"runtimeExecutable": "npm",
"runtimeArgs": [
"run",
"start-debug"
],
"port": 9229,
"serverReadyAction": {
"action": "openExternally",
"pattern": "App listening to (http://.*?:[0-9]+)"
}
}
]
}
+6 -11
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@@ -1,13 +1,8 @@
{
"typescript.preferences.importModuleSpecifier": "non-relative",
"typescript.preferences.quoteStyle": "single",
"mochaExplorer.envPath": ".mocha.env",
"mochaExplorer.files": [
"out/**/*.test.js",
"addons/**/out/*.test.js"
],
"mochaExplorer.watch": [
"out/**/*.js",
"addons/**/out/*.js"
]
"search.exclude": {
"**/node_modules": true,
"**/dist": true,
"**/build": true,
"**/lib": true
}
}
-74
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@@ -1,74 +0,0 @@
{
"version": "2.0.0",
"presentation": {
"echo": false,
"reveal": "always",
"focus": false,
"panel": "dedicated",
"showReuseMessage": true
},
"tasks": [
{
"type": "npm",
"script": "test",
"group":{
"kind": "test",
"isDefault": true
},
"problemMatcher": []
},
{
"label": "watch",
"type": "npm",
"script": "watch",
"group": "build",
"isBackground": true,
"problemMatcher": "$tsc-watch",
"presentation": {
"group": "vscode"
}
},
{
"label": "start",
"type": "npm",
"script": "start",
"group": "build",
"isBackground": true,
"problemMatcher": [],
"presentation": {
"group": "vscode"
}
},
{
"label": "Start demo",
"dependsOn": ["start", "watch"],
"group": {
"kind": "build",
"isDefault": true
},
"isBackground": true,
"problemMatcher": {
"owner": "typescript",
"fileLocation": [
"relative",
"${workspaceFolder}"
],
"pattern": [
{
"regexp": "^([^\\\\s].*)\\\\((\\\\d+,\\\\d+)\\\\):\\\\s*(.*)$",
"file": 1,
"location": 2,
"message": 3
}
],
"background": {
"beginsPattern": "assets by",
"endsPattern": "webpack \\d+\\.\\d+\\.\\d+ compiled successfully"
}
},
"presentation": {
"group": "vscode"
}
}
]
}
+92
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@@ -0,0 +1,92 @@
List of xterm.js contributors. Updated before every release.
Aleksandr Andrienko <aandrienko@codenvy.com>
Aleksandr Andriienko <oandriie@redhat.com>
Alessandro Nadalin <alessandro.nadalin@gmail.com>
Alexander Olsson <noseglid@gmail.com>
Alexey Kontsevoy <alexey@gravitational.com>
Anish Athalye <me@anishathalye.com>
Anthony Lapenna <lapenna.anthony@gmail.com>
Antonis Kalipetis <akalipetis@sourcelair.com>
Anton Skshidlevsky <meefik@gmail.com>
Anton Yurovskykh <anton.yurovskykh@gmail.com>
Artem Arbatskiy <artyom.arbatskiy@gmail.com>
Austin Robertson <austinrobertson@gmail.com>
ayapi <colors.aya@gmail.com>
Ben Hall <ben@benhall.me.uk>
Benjamin Fischer <benjamin.fischer@rwth-aachen.de>
Bill Church <billchurch@users.noreply.github.com>
Bob Reid <bobreid@Bobs-MacBook-Pro.local>
bottleofwater <nison.mael+bottleofwater@gmail.com>
Brian Mock <brian@mockbrian.com>
Bruno Ribeito <b.m.fernandes.ribeiro@gmail.com>
Carson Anderson <carson@betterservers.com>
CHaBou <chabup@delean.fr>
Christian Budde Christensen <budde377@gmail.com>
Christof Marti <chrmarti@microsoft.com>
Christopher Jeffrey <chjjeffrey@gmail.com>
coderaiser <mnemonic.enemy@gmail.com>
Dan Brown <jdanbrown@gmail.com>
Daniel Griffen <daniel@griffen.io>
Daniel Imms <daimms@microsoft.com>
Daniel Risacher <drisacher@gmail.com>
Dan Kaplun <dbkaplun@twitch.tv>
Darin Morrison <freebroccolo@users.noreply.github.com>
dcylabs <dcylabs@gmail.com>
Dominik Csapak <d.csapak@proxmox.com>
Edgar Andrés Margffoy Tuay <andfoy@gmail.com>
Elliot Saba <staticfloat@gmail.com>
Exile <exile@chamber.ee>
Felipe Gasper <felipe@felipegasper.com>
ficristo <ficristo.work@gmail.com>
Gary Ritchie <gary@rstudio.com>
hiro-su <h.sugipon@gmail.com>
Ian Lewis <ianlewis@google.com>
imoses <ido@twiggle.com>
InDieTasten <indietasten@gmail.com>
irokas <akasidiari@inf.uth.gr>
Jakob Gillich <jakob@gillich.me>
Jean Bruenn <himself@jeanbruenn.info>
Jeremy Danyow <jedanyow@microsoft.com>
Joao Moreno <jomo@microsoft.com>
Joao Moreno <mail@joaomoreno.com>
Johannes Zellner <johannes@nebulon.de>
Jon Masters <jon.masters@sky.com>
Jörg Breitbart <jerch@rockborn.de>
Justin Mecham <justin@mecham.me>
Kirill Merkushev <lanwen@yandex.ru>
Luca <LucaT1@users.noreply.github.com>
Lucian Buzzo <lucian.buzzo@gmail.com>
Lukas Drgon <lukas.drgon@gmail.com>
Maël Nison <nison.mael@gmail.com>
Marc Dumais <marc.dumais@ericsson.com>
Martin Chloride <i@martincl2.me>
Martin Koppehel <martin.koppehel@st.ovgu.de>
Martin Wang <jiahaow@ca.ibm.com>
Matt Bierner <matb@microsoft.com>
Michael Irwin <mikesir87@gmail.com>
Mikko Karvonen <mikko.karvonen@arm.com>
mofux <t.zilz@mofux.org>
Nicolas Ramz <nicolas.ramz@gmail.com>
npezza93 <npezza93@gmail.com>
Oleksandr Andriienko <oandriie@redhat.com>
Paris Kasidiaris <pariskasidiaris@gmail.com>
Paris Kasidiaris <paris@sourcelair.com>
Peter Baumgarten <me@peterbaumgarten.com>
Rick Baker <rick@ricktbaker.com>
runarberg <runar@greenqloud.com>
Samuel Williams <samuel.williams@oriontransfer.co.nz>
Saswat Das <saswatds@users.noreply.github.com>
Saul Costa <saul@codevolve.com>
Shuanglei Tao <tsl0922@gmail.com>
Steven Silvester <steven.silvester@ieee.org>
stuicey <stuicey@users.noreply.github.com>
t-amqi <umberos@gmail.com>
Thanasis Daglis <thanasis@sourcelair.com>
thomas <thomas@kreativkonzentrat.de>
Thomas Zilz <t.zilz@mofux.org>
Tine Jozelj <tine.jozelj@outlook.com>
Tyler Jewell <tjewell@codenvy.com>
Vincent Woo <me@vincentwoo.com>
yutaka <shigure@refy.net>
YuviPanda <yuvipanda@gmail.com>
-73
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@@ -1,73 +0,0 @@
# Contributor Covenant Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to making participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, gender identity and expression, level of experience,
education, socio-economic status, nationality, personal appearance, race,
religion, or sexual identity and orientation.
## Our Standards
Examples of behavior that contributes to creating a positive environment
include:
* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery and unwelcome sexual attention or
advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic
address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or
reject comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct, or to ban temporarily or
permanently any contributor for other behaviors that they deem inappropriate,
threatening, offensive, or harmful.
## Scope
This Code of Conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community. Examples of
representing a project or community include using an official project e-mail
address, posting via an official social media account, or acting as an appointed
representative at an online or offline event. Representation of a project may be
further defined and clarified by project maintainers.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported by contacting [@Tyriar](https://twitter.com/Tyriar) or [@pariskasid](https://twitter.com/pariskasid) on Twitter. All
complaints will be reviewed and investigated and will result in a response that
is deemed necessary and appropriate to the circumstances. The project team is
obligated to maintain confidentiality with regard to the reporter of an incident.
Further details of specific enforcement policies may be posted separately.
Project maintainers who do not follow or enforce the Code of Conduct in good
faith may face temporary or permanent repercussions as determined by other
members of the project's leadership.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
[homepage]: https://www.contributor-covenant.org
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@@ -23,36 +23,30 @@ opening an issue, read these pointers.
- Mention precisely what went wrong. What did you expect to happen? What happened instead? Describe the
exact steps a maintainer has to take to make the problem occur.
- If the problem can not be reproduced in the [demo of xterm.js](https://github.com/xtermjs/xterm.js/wiki/Contributing#running-the-demo), please provide an HTML document that demonstrates the problem.
- If the problem can not be reproduced in the [demo of xterm.js](README.md#demo), please provide an HTML document that demonstrates the problem.
- Be polite. Issues with an indignant or belligerent tone tend to be moved to the
bottom of the pile.
## Contributing code
You can find issues to work on by looking at the [help wanted](https://github.com/xtermjs/xterm.js/issues?q=is%3Aissue+is%3Aopen+label%3A%22help+wanted%22) or [good first issue](https://github.com/xtermjs/xterm.js/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22) issues. It's a good idea to comment on the issue saying that you're taking it, just in case someone else comes along and you duplicate work. Once you have your issue, here are the steps to contribute:
- Make sure you have a [GitHub account](https://github.com/join)
- Fork [xterm.js](https://github.com/sourcelair/xterm.js/)
([how to fork a repo](https://help.github.com/articles/fork-a-repo)).
- Get the [xterm.js demo](https://github.com/xtermjs/xterm.js/wiki/Contributing#running-the-demo) running.
- Make your changes.
([how to fork a repo](https://help.github.com/articles/fork-a-repo))
- Make your changes
- If your changes are easy to test or likely to regress, add tests. Tests go into `test`, directory.
- Follow the general code style of the rest of the project (see below).
- Submit a pull request
([how to create a pull request](https://help.github.com/articles/fork-a-repo)).
Don't put more than one feature/fix in a single pull request.
By contributing code to xterm.js you:
By contributing code to xterm.js you
- Agree to license the contributed code under xterm.js' [MIT
- agree to license the contributed code under xterm.js' [MIT
license](LICENSE).
- Confirm that you have the right to contribute and license the code
- confirm that you have the right to contribute and license the code
in question. (Either you hold all rights on the code, or the rights
holder has explicitly granted the right to use it like this,
through a compatible open source license or through a direct
agreement with you.)
### Test coverage
One area that always needs attention is improving out unit test coverage, you can view the code coverage report on [Azure Pipelines](https://dev.azure.com/xtermjs/xterm.js/_build/latest?definitionId=3) by clicking the Code Coverage tab.
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@@ -0,0 +1,19 @@
FROM node:6
MAINTAINER Paris Kasidiaris <paris@sourcelair.com>
# Set the working directory
WORKDIR /usr/src/app
# Set an entrypoint, to automatically install node modules
ENTRYPOINT ["/bin/bash", "-c", "if [[ ! -d node_modules ]]; then npm install; fi; exec \"${@:0}\";"]
CMD ["npm", "run", "start"]
# First, install dependencies to improve layer caching
COPY package.json /usr/src/app/
RUN npm install
# Add the code
COPY . /usr/src/app
# Run the tests and build, to make sure everything is working nicely
RUN npm run build && npm run test
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@@ -1,4 +1,3 @@
Copyright (c) 2017-2019, The xterm.js authors (https://github.com/xtermjs/xterm.js)
Copyright (c) 2014-2016, SourceLair Private Company (https://www.sourcelair.com)
Copyright (c) 2012-2013, Christopher Jeffrey (https://github.com/chjj/)
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@@ -1,2 +1 @@
web: npm start
webpack: npm run watch
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@@ -1,226 +1,168 @@
# [![xterm.js logo](logo-full.png)](https://xtermjs.org)
[![Build Status](https://dev.azure.com/xtermjs/xterm.js/_apis/build/status/xtermjs.xterm.js)](https://dev.azure.com/xtermjs/xterm.js/_build/latest?definitionId=3)
[![xterm.js build status](https://api.travis-ci.org/xtermjs/xterm.js.svg)](https://travis-ci.org/xtermjs/xterm.js) [![Coverage Status](https://coveralls.io/repos/github/sourcelair/xterm.js/badge.svg)](https://coveralls.io/github/sourcelair/xterm.js) [![Gitter](https://badges.gitter.im/sourcelair/xterm.js.svg)](https://gitter.im/sourcelair/xterm.js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [![jsDelivr Hits](https://data.jsdelivr.com/v1/package/npm/xterm/badge?style=rounded)](https://www.jsdelivr.com/package/npm/xterm)
Xterm.js is a front-end component written in TypeScript that lets applications bring fully-featured terminals to their users in the browser. It's used by popular projects such as VS Code, Hyper and Theia.
Xterm.js is a terminal front-end component written in JavaScript that works in the browser.
It enables applications to provide fully featured terminals to their users and create great development experiences.
## Features
- **Terminal apps just work**: Xterm.js works with most terminal apps such as `bash`, `vim`, and `tmux`, including support for curses-based apps and mouse events.
- **Performant**: Xterm.js is *really* fast, it even includes a GPU-accelerated renderer.
- **Rich Unicode support**: Supports CJK, emojis, and IMEs.
- **Self-contained**: Requires zero dependencies to work.
- **Accessible**: Screen reader and minimum contrast ratio support can be turned on.
- **And much more**: Links, theming, addons, well documented API, etc.
- **Text-based application support**: Use xterm.js to work with applications like `bash`, `git` etc.
- **Curses-based application support**: Use xterm.js to work with applications like `vim`, `tmux` etc.
- **Mouse events support**: Xterm.js captures mouse events like click and scroll and passes them to the terminal's back-end controlling process
- **CJK (Chinese, Japanese, Korean) character support**: Xterm.js renders CJK characters seamlessly
- **IME support**: Insert international (including CJK) characters using IME input with your keyboard
- **Self-contained library**: Xterm.js works on its own. It does not require any external libraries like jQuery or React to work
- **Modular, event-based API**: Lets you build addons and themes with ease
## What xterm.js is not
- Xterm.js is not a terminal application that you can download and use on your computer.
- Xterm.js is not `bash`. Xterm.js can be connected to processes like `bash` and let you interact with them (provide input, receive output).
- Xterm.js is not a terminal application that you can download and use on your computer
- Xterm.js is not `bash`. Xterm.js can be connected to processes like `bash` and let you interact with them (provide input, receive output)
## Getting Started
First, you need to install the module, we ship exclusively through [npm](https://www.npmjs.com/), so you need that installed and then add xterm.js as a dependency by running:
First you need to install the module, we ship exclusively through [npm](https://www.npmjs.com/) so you need that installed and then add xterm.js as a dependency by running:
```bash
npm install xterm
```
npm install
```
To start using xterm.js on your browser, add the `xterm.js` and `xterm.css` to the head of your HTML page. Then create a `<div id="terminal"></div>` onto which xterm can attach itself. Finally, instantiate the `Terminal` object and then call the `open` function with the DOM object of the `div`.
To start using xterm.js on your browser, add the `xterm.js` and `xterm.css` to the head of your html page. Then create a `<div id="terminal"></div>` onto which xterm can attach itself.
```html
<!doctype html>
<html>
<head>
<link rel="stylesheet" href="node_modules/xterm/css/xterm.css" />
<script src="node_modules/xterm/lib/xterm.js"></script>
<link rel="stylesheet" href="node_modules/xterm/dist/xterm.css" />
<script src="node_modules/xterm/dist/xterm.js"></script>
</head>
<body>
<div id="terminal"></div>
<script>
var term = new Terminal();
var term = new Terminal();
term.open(document.getElementById('terminal'));
term.write('Hello from \x1B[1;3;31mxterm.js\x1B[0m $ ')
term.write('Hello from \033[1;3;31mxterm.js\033[0m $ ')
</script>
</body>
</html>
```
Finally instantiate the `Terminal` object and then call the `open` function with the DOM object of the `div`.
### Importing
The recommended way to load xterm.js is via the ES6 module syntax:
The proposed way to load xterm.js is via the ES6 module syntax.
```javascript
import { Terminal } from 'xterm';
```
*Note: There are currently no typings for addons so you will need to upcast if using TypeScript, eg. `(<any>xterm).fit()`.*
### Addons
⚠️ *This section describes the new addon format introduced in v3.14.0, see [here](https://github.com/xtermjs/xterm.js/blob/3.14.2/README.md#addons) for the instructions on the old format*
Addons are JavaScript modules that extend the `Terminal` prototype with new methods and attributes to provide additional functionality. There are a handful available in the main repository in the `src/addons` directory and you can even write your own, by using xterm.js' public API.
Addons are separate modules that extend the `Terminal` by building on the [xterm.js API](https://github.com/xtermjs/xterm.js/blob/master/typings/xterm.d.ts). To use an addon, you first need to install it in your project:
To use an addon, just import the JavaScript module and pass it to `Terminal`'s `applyAddon` method:
```bash
npm i -S xterm-addon-web-links
```javascript
import { Terminal } from xterm;
import * as fit from 'xterm/lib/addons/fit/fit';
Terminal.applyAddon(fit);
var xterm = new Terminal(); // Instantiate the terminal
xterm.fit(); // Use the `fit` method, provided by the `fit` addon
```
Then import the addon, instantiate it and call `Terminal.loadAddon`:
```ts
import { Terminal } from 'xterm';
import { WebLinksAddon } from 'xterm-addon-web-links';
const terminal = new Terminal();
// Load WebLinksAddon on terminal, this is all that's needed to get web links
// working in the terminal.
terminal.loadAddon(new WebLinksAddon());
```
The xterm.js team maintains the following addons, but anyone can build them:
- [`xterm-addon-attach`](https://github.com/xtermjs/xterm.js/tree/master/addons/xterm-addon-attach): Attaches to a server running a process via a websocket
- [`xterm-addon-fit`](https://github.com/xtermjs/xterm.js/tree/master/addons/xterm-addon-fit): Fits the terminal to the containing element
- [`xterm-addon-search`](https://github.com/xtermjs/xterm.js/tree/master/addons/xterm-addon-search): Adds search functionality
- [`xterm-addon-web-links`](https://github.com/xtermjs/xterm.js/tree/master/addons/xterm-addon-web-links): Adds web link detection and interaction
## Browser Support
Since xterm.js is typically implemented as a developer tool, only modern browsers are supported officially. Specifically the latest versions of *Chrome*, *Edge*, *Firefox*, and *Safari*.
Since xterm.js is typically implemented as a developer tool, only modern browsers are supported officially. Here is a list of the versions we aim to support:
Xterm.js works seamlessly in [Electron](https://electronjs.org/) apps and may even work on earlier versions of the browsers. These are the versions we strive to keep working.
- Chrome latest
- Edge latest
- Firefox latest
- Safari latest
- IE11
### Node.js Support
We also publish [`xterm-headless`](https://www.npmjs.com/package/xterm-headless) which is a stripped down version of xterm.js that runs in Node.js. An example use case for this is to keep track of a terminal's state where the process is running and using the serialize addon so it can get all state restored upon reconnection.
## API
The full API for xterm.js is contained within the [TypeScript declaration file](https://github.com/xtermjs/xterm.js/blob/master/typings/xterm.d.ts), use the branch/tag picker in GitHub (`w`) to navigate to the correct version of the API.
Note that some APIs are marked *experimental*, these are added to enable experimentation with new ideas without committing to support it like a normal [semver](https://semver.org/) API. Note that these APIs can change radically between versions, so be sure to read release notes if you plan on using experimental APIs.
Xterm.js works seamlessly in Electron apps and may even work on earlier versions of the browsers but these are the browsers we strive to keep working.
## Real-world uses
Xterm.js is used in several world-class applications to provide great terminal experiences.
- [**SourceLair**](https://www.sourcelair.com/): In-browser IDE that provides its users with fully-featured Linux terminals based on xterm.js.
- [**Microsoft Visual Studio Code**](http://code.visualstudio.com/): Modern, versatile, and powerful open source code editor that provides an integrated terminal based on xterm.js.
- [**ttyd**](https://github.com/tsl0922/ttyd): A command-line tool for sharing terminal over the web, with fully-featured terminal emulation based on xterm.js.
- [**SourceLair**](https://www.sourcelair.com/): In-browser IDE that provides its users with fully-featured Linux terminals based on xterm.js
- [**Microsoft Visual Studio Code**](http://code.visualstudio.com/): Modern, versatile and powerful open source code editor that provides an integrated terminal based on xterm.js
- [**ttyd**](https://github.com/tsl0922/ttyd): A command-line tool for sharing terminal over the web, with fully-featured terminal emulation based on xterm.js
- [**Katacoda**](https://www.katacoda.com/): Katacoda is an Interactive Learning Platform for software developers, covering the latest Cloud Native technologies.
- [**Eclipse Che**](http://www.eclipse.org/che): Developer workspace server, cloud IDE, and Eclipse next-generation IDE.
- [**Codenvy**](http://www.codenvy.com): Cloud workspaces for development teams.
- [**CoderPad**](https://coderpad.io): Online interviewing platform for programmers. Run code in many programming languages, with results displayed by xterm.js.
- [**WebSSH2**](https://github.com/billchurch/WebSSH2): A web based SSH2 client using xterm.js, socket.io, and ssh2.
- [**CoderPad**](https://coderpad.io): Online interviewing platform for programmers. Run code in many programming languages, with results displayed by `xterm.js`.
- [**WebSSH2**](https://github.com/billchurch/WebSSH2): A web based SSH2 client using `xterm.js`, socket.io, and ssh2.
- [**Spyder Terminal**](https://github.com/spyder-ide/spyder-terminal): A full fledged system terminal embedded on Spyder IDE.
- [**Cloud Commander**](https://cloudcmd.io "Cloud Commander"): Orthodox web file manager with console and editor.
- [**Next Tech**](https://next.tech "Next Tech"): Online platform for interactive coding and web development courses. Live container-backed terminal uses xterm.js.
- [**Codevolve**](https://www.codevolve.com "Codevolve"): Online platform for interactive coding and web development courses. Live container-backed terminal uses `xterm.js`.
- [**RStudio**](https://www.rstudio.com/products/RStudio "RStudio"): RStudio is an integrated development environment (IDE) for R.
- [**Terminal for Atom**](https://github.com/jsmecham/atom-terminal-tab): A simple terminal for the Atom text editor.
- [**Eclipse Orion**](https://orionhub.org): A modern, open source software development environment that runs in the cloud. Code, deploy, and run in the cloud.
- [**Eclipse Orion**](https://orionhub.org): A modern, open source software development environment that runs in the cloud. Code, deploy and run in the cloud.
- [**Gravitational Teleport**](https://github.com/gravitational/teleport): Gravitational Teleport is a modern SSH server for remotely accessing clusters of Linux servers via SSH or HTTPS.
- [**Hexlet**](https://en.hexlet.io): Practical programming courses (JavaScript, PHP, Unix, databases, functional programming). A steady path from the first line of code to the first job.
- [**Selenoid UI**](https://github.com/aerokube/selenoid-ui): Simple UI for the scalable golang implementation of Selenium Hub named Selenoid. We use XTerm for streaming logs over websockets from docker containers.
- [**Selenoid UI**](https://github.com/aerokube/selenoid-ui): Simple UI for the scallable golang implementation of Selenium Hub named Selenoid. We use XTerm for streaming logs over websockets from docker containers.
- [**Portainer**](https://portainer.io): Simple management UI for Docker.
- [**SSHy**](https://github.com/stuicey/SSHy): HTML5 Based SSHv2 Web Client with E2E encryption utilising xterm.js, SJCL & websockets.
- [**JupyterLab**](https://github.com/jupyterlab/jupyterlab): An extensible computational environment for Jupyter, supporting interactive data science and scientific computing across all programming languages.
- [**SSHy**](https://github.com/stuicey/SSHy): HTML5 Based SSHv2 Web Client with E2E encryption utilising `xterm.js`, SJCL & websockets.
- [**JupyterLab**](https://github.com/jupyterlab/jupyterlab): An extensible
computational environment for Jupyter, supporting interactive data science and scientific computing across all programming languages.
- [**Theia**](https://github.com/theia-ide/theia): Theia is a cloud & desktop IDE framework implemented in TypeScript.
- [**Opshell**](https://github.com/ricktbaker/opshell) Ops Helper tool to make life easier working with AWS instances across multiple organizations.
- [**Proxmox VE**](https://www.proxmox.com/en/proxmox-ve): Proxmox VE is a complete open-source platform for enterprise virtualization. It uses xterm.js for container terminals and the host shell.
- [**Script Runner**](https://github.com/ioquatix/script-runner): Run scripts (or a shell) in Atom.
- [**Whack Whack Terminal**](https://github.com/Microsoft/WhackWhackTerminal): Terminal emulator for Visual Studio 2017.
- [**VTerm**](https://github.com/vterm/vterm): Extensible terminal emulator based on Electron and React.
- [**electerm**](http://electerm.html5beta.com): electerm is a terminal/ssh/sftp client(mac, win, linux) based on electron/node-pty/xterm.
- [**Kubebox**](https://github.com/astefanutti/kubebox): Terminal console for Kubernetes clusters.
- [**Azure Cloud Shell**](https://shell.azure.com): Azure Cloud Shell is a Microsoft-managed admin machine built on Azure, for Azure.
- [**atom-xterm**](https://atom.io/packages/atom-xterm): Atom plugin for providing terminals inside your Atom workspace.
- [**rtty**](https://github.com/zhaojh329/rtty): Access your terminals from anywhere via the web.
- [**Pisth**](https://github.com/ColdGrub1384/Pisth): An SFTP and SSH client for iOS.
- [**abstruse**](https://github.com/bleenco/abstruse): Abstruse CI is a continuous integration platform based on Node.JS and Docker.
- [**Azure Data Studio**](https://github.com/Microsoft/azuredatastudio): A data management tool that enables working with SQL Server, Azure SQL DB and SQL DW from Windows, macOS and Linux.
- [**FreeMAN**](https://github.com/matthew-matvei/freeman): A free, cross-platform file manager for power users.
- [**Fluent Terminal**](https://github.com/felixse/FluentTerminal): A terminal emulator based on UWP and web technologies.
- [**Hyper**](https://hyper.is): A terminal built on web technologies.
- [**Diag**](https://diag.ai): A better way to troubleshoot problems faster. Capture, share and reapply troubleshooting knowledge so you can focus on solving problems that matter.
- [**GoTTY**](https://github.com/sorenisanerd/gotty): A simple command line tool that shares your terminal as a web application based on xterm.js.
- [**genact**](https://github.com/svenstaro/genact): A nonsense activity generator.
- [**cPanel & WHM**](https://cpanel.com): The hosting platform of choice.
- [**Nutanix**](https://github.com/nutanix): Nutanix Enterprise Cloud uses xterm in the webssh functionality within Nutanix Calm, and is also looking to move our old noserial (termjs) functionality to xterm.js.
- [**SSH Web Client**](https://github.com/roke22/PHP-SSH2-Web-Client): SSH Web Client with PHP.
- [**Juno**](http://junolab.org/): A flexible Julia IDE, based on Atom.
- [**webssh**](https://github.com/huashengdun/webssh): Web based ssh client.
- [**info-beamer hosted**](https://info-beamer.com): Uses xterm.js to manage digital signage devices from the web dashboard.
- [**Jumpserver**](https://github.com/jumpserver/luna): Jumpserver Luna project, Jumpserver is a bastion server project, Luna use xterm.js for web terminal emulation.
- [**LxdMosaic**](https://github.com/turtle0x1/LxdMosaic): Uses xterm.js to give terminal access to containers through LXD
- [**CodeInterview.io**](https://codeinterview.io): A coding interview platform in 25+ languages and many web frameworks. Uses xterm.js to provide shell access.
- [**Bastillion**](https://www.bastillion.io): Bastillion is an open-source web-based SSH console that centrally manages administrative access to systems.
- [**PHP App Server**](https://github.com/cubiclesoft/php-app-server/): Create lightweight, installable almost-native applications for desktop OSes. ExecTerminal (nicely wraps the xterm.js Terminal), TerminalManager, and RunProcessSDK are self-contained, reusable ES5+ compliant Javascript components.
- [**NgTerminal**](https://github.com/qwefgh90/ng-terminal): NgTerminal is a web terminal that leverages xterm.js on Angular 7+. You can easily add it into your application by adding `<ng-terminal></ng-terminal>` into your component.
- [**tty-share**](https://tty-share.com): Extremely simple terminal sharing over the Internet.
- [**Ten Hands**](https://github.com/saisandeepvaddi/ten-hands): One place to run your command-line tasks.
- [**WebAssembly.sh**](https://webassembly.sh): A WebAssembly WASI browser terminal
- [**Gus**](https://gus.jp): A shared coding pad where you can run Python with xterm.js
- [**Linode**](https://linode.com): Linode uses xterm.js to provide users a web console for their Linode instances.
- [**FluffOS**](https://www.fluffos.info): Active maintained LPMUD driver with websocket support.
- [**x-terminal**](https://atom.io/packages/x-terminal): Atom plugin for providing terminals inside your Atom workspace.
- [**CoCalc**](https://cocalc.com/): Lots of free software pre-installed, to chat, collaborate, develop, program, publish, research, share, teach, in C++, HTML, Julia, Jupyter, LaTeX, Markdown, Python, R, SageMath, Scala, ...
- [**Dank Domain**](https://www.DDgame.us/): Open source multiuser medieval game supporting old & new terminal emulation.
- [**DockerStacks**](https://docker-stacks.com/): Local LAMP/LEMP development studio
- [**Codecademy**](https://codecademy.com/): Uses xterm.js in its courses on Bash.
- [**Laravel Ssh Web Client**](https://github.com/roke22/Laravel-ssh-client): Laravel server inventory with ssh web client to connect at server using xterm.js
- [**Repl.it**](https://repl.it): Collaborative browser based IDE with support for 50+ different languages.
- [**TeleType**](https://github.com/akshaykmr/TeleType): cli tool that allows you to share your terminal online conveniently. Show off mad cli-fu, help a colleague, teach, or troubleshoot.
- [**Intervue**](https://www.intervue.io): Pair programming for interviews. Multiple programming languages are supported, with results displayed by xterm.js.
- [**TRASA**](https://trasa.io): Zero trust access to Web, SSH, RDP, and Database services.
- [**Commas**](https://github.com/CyanSalt/commas): Commas is a hackable terminal and command runner.
- [**Devtron**](https://github.com/devtron-labs/devtron): Software Delivery Workflow For Kubernetes.
- [**NxShell**](https://github.com/nxshell/nxshell): An easy to use new terminal for SSH.
- [**gifcast**](https://dstein64.github.io/gifcast/): Converts an asciinema cast to an animated GIF.
- [**WizardWebssh**](https://gitlab.com/mikeramsey/wizardwebssh): A terminal with Pyqt5 Widget for embedding, which can be used as an ssh client to connect to your ssh servers. It is written in Python, based on tornado, paramiko, and xterm.js.
- [**Wizard Assistant**](https://wizardassistant.com/): Wizard Assistant comes with advanced automation tools, preloaded common and special time-saving commands, and a built-in SSH terminal. Now you can remotely administer, troubleshoot, and analyze any system with ease.
- [**ucli**](https://github.com/tsadarsh/ucli): Command Line for everyone :family_man_woman_girl_boy: at [www.ucli.tech](https://www.ucli.tech).
- [**Tess**](https://github.com/SquitchYT/Tess/): Simple Terminal Fully Customizable for Everyone. Discover more at [tessapp.dev](https://tessapp.dev)
- [**HashiCorp Nomad**](https://www.nomadproject.io/): A container orchestrator with the ability to connect to remote tasks via a web interface using websockets and xterm.js.
- [**TermPair**](https://github.com/cs01/termpair): View and control terminals from your browser with end-to-end encryption
- [**gdbgui**](https://github.com/cs01/gdbgui): Browser-based frontend to gdb (gnu debugger)
- [**goormIDE**](https://ide.goorm.io/): Run almost every programming languages with real-time collaboration, live pair programming, and built-in messenger.
- [**FleetDeck**](https://fleetdeck.io): Remote desktop & virtual terminal
- [**OpenSumi**](https://github.com/opensumi/core): A framework helps you quickly build Cloud or Desktop IDE products.
- [**KubeSail**](https://kubesail.com): The Self-Hosting Company - uses xterm to allow users to exec into kubernetes pods and build github apps
- [**WiTTY**](https://github.com/syssecfsu/witty): Web-based interactive terminal emulator that allows users to easily record, share, and replay console sessions.
- [**libv86 Terminal Forwarding**](https://github.com/hello-smile6/libv86-terminal-forwarding): Peer-to-peer SSH for the web, using WebRTC via [Bugout](https://github.com/chr15m/bugout) for data transfer and [v86](https://github.com/copy/v86) for web-based virtualization.
- [**hack.courses**](https://hack.courses): Interactive Linux and command-line classes using xterm.js to expose a real terminal available for everyone.
- [**Render**](https://render.com): Platform-as-a-service for your apps, websites, and databases using xterm.js to provide a command prompt for user containers and for streaming build and runtime logs.
- [**CloudTTY**](https://github.com/cloudtty/cloudtty): A Friendly Kubernetes CloudShell (Web Terminal).
- [**Go SSH Web Client**](https://github.com/wuchihsu/go-ssh-web-client): A simple SSH web client using Go, WebSocket and Xterm.js.
- [**web3os**](https://web3os.sh): A decentralized operating system for the next web
- [**Cratecode**](https://cratecode.com): Learn to program for free through interactive online lessons. Cratecode uses xterm.js to give users access to their own Linux environment.
- [And much more...](https://github.com/xtermjs/xterm.js/network/dependents?package_id=UGFja2FnZS0xNjYzMjc4OQ%3D%3D)
Do you use xterm.js in your application as well? Please [open a Pull Request](https://github.com/sourcelair/xterm.js/pulls) to include it here. We would love to have it on our list. Note: Please add any new contributions to the end of the list only.
Do you use xterm.js in your application as well? Please [open a Pull Request](https://github.com/sourcelair/xterm.js/pulls) to include it here. We would love to have it in our list.
## Demo
### Linux or macOS
First, be sure that a C++ compiler such as GCC-C++ or Clang is installed, then run these commands:
```
npm install
npm start
```
Then open http://0.0.0.0:3000 in a web browser.
### Windows
First, ensure [node-gyp](https://github.com/nodejs/node-gyp) is installed and configured correctly, then run these commands.
```
npm install
npm start
```
Then open http://127.0.0.1:3000 in a web browser.
*Note: Do not use ConEmu, as it seems to break the demo for some reason.*
## Releases
Xterm.js follows a monthly release cycle roughly.
All current and past releases are available on this repo's [Releases page](https://github.com/sourcelair/xterm.js/releases), you can view the [high-level roadmap on the wiki](https://github.com/xtermjs/xterm.js/wiki/Roadmap) and see what we're working on now by looking through [Milestones](https://github.com/sourcelair/xterm.js/milestones).
The existing releases are available at this GitHub repo's [Releases](https://github.com/sourcelair/xterm.js/releases), while the roadmap is available as [Milestones](https://github.com/sourcelair/xterm.js/milestones).
### Beta builds
## Development and Contribution
Our CI releases beta builds to npm for every change that goes into master. Install the latest beta build with:
Xterm.js is maintained by [SourceLair](https://www.sourcelair.com/) and a few external contributors, but we would love to receive contributions from everyone!
```bash
npm install -S xterm@beta
```
These should generally be stable, but some bugs may slip in. We recommend using the beta build primarily to test out new features and to verify bug fixes.
## Contributing
You can read the [guide on the wiki](https://github.com/xtermjs/xterm.js/wiki/Contributing) to learn how to contribute and set up xterm.js for development.
To contribute either code, documentation or issues to xterm.js please read the [Contributing document](CONTRIBUTING.md) beforehand. The development of xterm.js does not require any special tool. All you need is an editor that supports JavaScript/TypeScript and a browser. You will need Node.js installed locally to get all the features working in the demo.
## License Agreement
If you contribute code to this project, you implicitly allow your code to be distributed under the MIT license. You are also implicitly verifying that all code is your original work.
If you contribute code to this project, you are implicitly allowing your code to be distributed under the MIT license. You are also implicitly verifying that all code is your original work.
Copyright (c) 2014-2017, SourceLair, Private Company ([www.sourcelair.com](https://www.sourcelair.com/home)) (MIT License)
Copyright (c) 2017-2019, [The xterm.js authors](https://github.com/xtermjs/xterm.js/graphs/contributors) (MIT License)<br>
Copyright (c) 2014-2017, SourceLair, Private Company ([www.sourcelair.com](https://www.sourcelair.com/home)) (MIT License)<br>
Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
-2
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@@ -1,2 +0,0 @@
lib
node_modules
-29
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@@ -1,29 +0,0 @@
# Blacklist - exclude everything except npm defaults such as LICENSE, etc
*
!*/
# Whitelist - lib/
!lib/**/*.d.ts
!lib/**/*.js
!lib/**/*.js.map
!lib/**/*.css
# Whitelist - src/
!src/**/*.ts
!src/**/*.d.ts
!src/**/*.js
!src/**/*.js.map
!src/**/*.css
# Blacklist - src/ test files
src/**/*.test.ts
src/**/*.test.d.ts
src/**/*.test.js
src/**/*.test.js.map
# Whitelist - typings/
!typings/*.d.ts
-19
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@@ -1,19 +0,0 @@
Copyright (c) 2017, The xterm.js authors (https://github.com/xtermjs/xterm.js)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-22
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@@ -1,22 +0,0 @@
## xterm-addon-attach
An addon for [xterm.js](https://github.com/xtermjs/xterm.js) that enables attaching to a web socket. This addon requires xterm.js v4+.
### Install
```bash
npm install --save xterm-addon-attach
```
### Usage
```ts
import { Terminal } from 'xterm';
import { AttachAddon } from 'xterm-addon-attach';
const terminal = new Terminal();
const attachAddon = new AttachAddon(webSocket);
terminal.loadAddon(attachAddon);
```
See the full [API](https://github.com/xtermjs/xterm.js/blob/master/addons/xterm-addon-attach/typings/xterm-addon-attach.d.ts) for more advanced usage.
-26
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@@ -1,26 +0,0 @@
{
"name": "xterm-addon-attach",
"version": "0.7.0",
"author": {
"name": "The xterm.js authors",
"url": "https://xtermjs.org/"
},
"main": "lib/xterm-addon-attach.js",
"types": "typings/xterm-addon-attach.d.ts",
"repository": "https://github.com/xtermjs/xterm.js",
"license": "MIT",
"keywords": [
"terminal",
"xterm",
"xterm.js"
],
"scripts": {
"build": "../../node_modules/.bin/tsc -p .",
"prepackage": "npm run build",
"package": "../../node_modules/.bin/webpack",
"prepublishOnly": "npm run package"
},
"peerDependencies": {
"xterm": "^5.0.0"
}
}
@@ -1,81 +0,0 @@
/**
* Copyright (c) 2014, 2019 The xterm.js authors. All rights reserved.
* @license MIT
*
* Implements the attach method, that attaches the terminal to a WebSocket stream.
*/
import { Terminal, IDisposable, ITerminalAddon } from 'xterm';
interface IAttachOptions {
bidirectional?: boolean;
}
export class AttachAddon implements ITerminalAddon {
private _socket: WebSocket;
private _bidirectional: boolean;
private _disposables: IDisposable[] = [];
constructor(socket: WebSocket, options?: IAttachOptions) {
this._socket = socket;
// always set binary type to arraybuffer, we do not handle blobs
this._socket.binaryType = 'arraybuffer';
this._bidirectional = !(options && options.bidirectional === false);
}
public activate(terminal: Terminal): void {
this._disposables.push(
addSocketListener(this._socket, 'message', ev => {
const data: ArrayBuffer | string = ev.data;
terminal.write(typeof data === 'string' ? data : new Uint8Array(data));
})
);
if (this._bidirectional) {
this._disposables.push(terminal.onData(data => this._sendData(data)));
this._disposables.push(terminal.onBinary(data => this._sendBinary(data)));
}
this._disposables.push(addSocketListener(this._socket, 'close', () => this.dispose()));
this._disposables.push(addSocketListener(this._socket, 'error', () => this.dispose()));
}
public dispose(): void {
for (const d of this._disposables) {
d.dispose();
}
}
private _sendData(data: string): void {
// TODO: do something better than just swallowing
// the data if the socket is not in a working condition
if (this._socket.readyState !== 1) {
return;
}
this._socket.send(data);
}
private _sendBinary(data: string): void {
if (this._socket.readyState !== 1) {
return;
}
const buffer = new Uint8Array(data.length);
for (let i = 0; i < data.length; ++i) {
buffer[i] = data.charCodeAt(i) & 255;
}
this._socket.send(buffer);
}
}
function addSocketListener<K extends keyof WebSocketEventMap>(socket: WebSocket, type: K, handler: (this: WebSocket, ev: WebSocketEventMap[K]) => any): IDisposable {
socket.addEventListener(type, handler);
return {
dispose: () => {
if (!handler) {
// Already disposed
return;
}
socket.removeEventListener(type, handler);
}
};
}
@@ -1,22 +0,0 @@
{
"compilerOptions": {
"module": "commonjs",
"target": "es2015",
"lib": [
"dom",
"es2015"
],
"rootDir": ".",
"outDir": "../out",
"sourceMap": true,
"removeComments": true,
"strict": true,
"types": [
"../../../node_modules/@types/mocha"
]
},
"include": [
"./**/*",
"../../../typings/xterm.d.ts"
]
}
@@ -1,50 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
import WebSocket = require('ws');
import { openTerminal, pollFor, launchBrowser } from '../../../out-test/api/TestUtils';
import { Browser, Page } from 'playwright';
const APP = 'http://127.0.0.1:3001/test';
let browser: Browser;
let page: Page;
const width = 800;
const height = 600;
describe('AttachAddon', () => {
before(async function(): Promise<any> {
browser = await launchBrowser();
page = await (await browser.newContext()).newPage();
await page.setViewportSize({ width, height });
});
after(async () => {
await browser.close();
});
beforeEach(async () => await page.goto(APP));
it('string', async function(): Promise<any> {
await openTerminal(page);
const port = 8080;
const server = new WebSocket.Server({ port });
server.on('connection', socket => socket.send('foo'));
await page.evaluate(`window.term.loadAddon(new window.AttachAddon(new WebSocket('ws://localhost:${port}')))`);
await pollFor(page, `window.term.buffer.active.getLine(0).translateToString(true)`, 'foo');
server.close();
});
it('utf8', async function(): Promise<any> {
await openTerminal(page);
const port = 8080;
const server = new WebSocket.Server({ port });
const data = new Uint8Array([102, 111, 111]);
server.on('connection', socket => socket.send(data));
await page.evaluate(`window.term.loadAddon(new window.AttachAddon(new WebSocket('ws://localhost:${port}')))`);
await pollFor(page, `window.term.buffer.active.getLine(0).translateToString(true)`, 'foo');
server.close();
});
});
@@ -1,23 +0,0 @@
{
"compilerOptions": {
"module": "commonjs",
"target": "es2015",
"lib": [
"es2015"
],
"rootDir": ".",
"outDir": "../out-test",
"sourceMap": true,
"removeComments": true,
"strict": true,
"types": [
"../../../node_modules/@types/mocha",
"../../../node_modules/@types/node",
"../../../out-test/api/TestUtils"
]
},
"include": [
"./**/*",
"../../../typings/xterm.d.ts"
]
}
-8
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@@ -1,8 +0,0 @@
{
"files": [],
"include": [],
"references": [
{ "path": "./src" },
{ "path": "./test" }
]
}
@@ -1,21 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { Terminal, ITerminalAddon } from 'xterm';
declare module 'xterm-addon-attach' {
export interface IAttachOptions {
/**
* Whether input should be written to the backend. Defaults to `true`.
*/
bidirectional?: boolean;
}
export class AttachAddon implements ITerminalAddon {
constructor(socket: WebSocket, options?: IAttachOptions);
public activate(terminal: Terminal): void;
public dispose(): void;
}
}
@@ -1,31 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
const path = require('path');
const addonName = 'AttachAddon';
const mainFile = 'xterm-addon-attach.js';
module.exports = {
entry: `./out/${addonName}.js`,
devtool: 'source-map',
module: {
rules: [
{
test: /\.js$/,
use: ["source-map-loader"],
enforce: "pre",
exclude: /node_modules/
}
]
},
output: {
filename: mainFile,
path: path.resolve('./lib'),
library: addonName,
libraryTarget: 'umd'
},
mode: 'production'
};
-2
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@@ -1,2 +0,0 @@
lib
node_modules
-29
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@@ -1,29 +0,0 @@
# Blacklist - exclude everything except npm defaults such as LICENSE, etc
*
!*/
# Whitelist - lib/
!lib/**/*.d.ts
!lib/**/*.js
!lib/**/*.js.map
!lib/**/*.css
# Whitelist - src/
!src/**/*.ts
!src/**/*.d.ts
!src/**/*.js
!src/**/*.js.map
!src/**/*.css
# Blacklist - src/ test files
src/**/*.test.ts
src/**/*.test.d.ts
src/**/*.test.js
src/**/*.test.js.map
# Whitelist - typings/
!typings/*.d.ts
-19
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@@ -1,19 +0,0 @@
Copyright (c) 2017, The xterm.js authors (https://github.com/xtermjs/xterm.js)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-28
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@@ -1,28 +0,0 @@
## xterm-addon-canvas
An addon for [xterm.js](https://github.com/xtermjs/xterm.js) that enables a canvas-based renderer using a 2d context to draw. This addon requires xterm.js v5+.
The purpose of this addon is to be used as a fallback for the [webgl addon](https://www.npmjs.com/package/xterm-addon-webgl) when better performance is desired over the default DOM renderer, but WebGL2 isn't supported or performant for some reason.
### Install
```bash
npm install --save xterm-addon-canvas
```
### Usage
```ts
import { Terminal } from 'xterm';
import { CanvasAddon } from 'xterm-addon-canvas';
const terminal = new Terminal();
terminal.open(element);
terminal.loadAddon(new CanvasAddon());
```
See the full [API](https://github.com/xtermjs/xterm.js/blob/master/addons/xterm-addon-canvas/typings/xterm-addon-canvas.d.ts) for more advanced usage.
### See also
- [xterm-addon-webgl](https://www.npmjs.com/package/xterm-addon-webgl) A renderer for xterm.js that uses WebGL
-27
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@@ -1,27 +0,0 @@
{
"name": "xterm-addon-canvas",
"version": "0.2.0",
"author": {
"name": "The xterm.js authors",
"url": "https://xtermjs.org/"
},
"main": "lib/xterm-addon-canvas.js",
"types": "typings/xterm-addon-canvas.d.ts",
"repository": "https://github.com/xtermjs/xterm.js",
"license": "MIT",
"keywords": [
"terminal",
"canvas",
"xterm",
"xterm.js"
],
"scripts": {
"build": "../../node_modules/.bin/tsc -p .",
"prepackage": "npm run build",
"package": "../../node_modules/.bin/webpack",
"prepublishOnly": "npm run package"
},
"peerDependencies": {
"xterm": "^5.0.0"
}
}
@@ -1,653 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { IRenderDimensions } from 'browser/renderer/Types';
import { IRenderLayer } from './Types';
import { ICellData, IColor } from 'common/Types';
import { DEFAULT_COLOR, WHITESPACE_CELL_CHAR, WHITESPACE_CELL_CODE, Attributes } from 'common/buffer/Constants';
import { IGlyphIdentifier } from './atlas/Types';
import { DIM_OPACITY, INVERTED_DEFAULT_COLOR, TEXT_BASELINE } from 'browser/renderer/Constants';
import { BaseCharAtlas } from './atlas/BaseCharAtlas';
import { acquireCharAtlas } from './atlas/CharAtlasCache';
import { AttributeData } from 'common/buffer/AttributeData';
import { IColorSet } from 'browser/Types';
import { CellData } from 'common/buffer/CellData';
import { IBufferService, IDecorationService, IOptionsService } from 'common/services/Services';
import { ICoreBrowserService } from 'browser/services/Services';
import { excludeFromContrastRatioDemands, throwIfFalsy } from 'browser/renderer/RendererUtils';
import { channels, color, rgba } from 'common/Color';
import { removeElementFromParent } from 'browser/Dom';
import { tryDrawCustomChar } from 'browser/renderer/CustomGlyphs';
export abstract class BaseRenderLayer implements IRenderLayer {
private _canvas: HTMLCanvasElement;
protected _ctx!: CanvasRenderingContext2D;
private _scaledCharWidth: number = 0;
private _scaledCharHeight: number = 0;
private _scaledCellWidth: number = 0;
private _scaledCellHeight: number = 0;
private _scaledCharLeft: number = 0;
private _scaledCharTop: number = 0;
protected _selectionStart: [number, number] | undefined;
protected _selectionEnd: [number, number] | undefined;
protected _columnSelectMode: boolean = false;
protected _charAtlas: BaseCharAtlas | undefined;
/**
* An object that's reused when drawing glyphs in order to reduce GC.
*/
private _currentGlyphIdentifier: IGlyphIdentifier = {
chars: '',
code: 0,
bg: 0,
fg: 0,
bold: false,
dim: false,
italic: false
};
public get canvas(): HTMLCanvasElement { return this._canvas; }
constructor(
private _container: HTMLElement,
id: string,
zIndex: number,
private _alpha: boolean,
protected _colors: IColorSet,
private _rendererId: number,
protected readonly _bufferService: IBufferService,
protected readonly _optionsService: IOptionsService,
protected readonly _decorationService: IDecorationService,
protected readonly _coreBrowserService: ICoreBrowserService
) {
this._canvas = document.createElement('canvas');
this._canvas.classList.add(`xterm-${id}-layer`);
this._canvas.style.zIndex = zIndex.toString();
this._initCanvas();
this._container.appendChild(this._canvas);
}
public dispose(): void {
removeElementFromParent(this._canvas);
this._charAtlas?.dispose();
}
private _initCanvas(): void {
this._ctx = throwIfFalsy(this._canvas.getContext('2d', { alpha: this._alpha }));
// Draw the background if this is an opaque layer
if (!this._alpha) {
this._clearAll();
}
}
public onOptionsChanged(): void {}
public onBlur(): void {}
public onFocus(): void {}
public onCursorMove(): void {}
public onGridChanged(startRow: number, endRow: number): void {}
public onSelectionChanged(start: [number, number] | undefined, end: [number, number] | undefined, columnSelectMode: boolean = false): void {
this._selectionStart = start;
this._selectionEnd = end;
this._columnSelectMode = columnSelectMode;
}
public setColors(colorSet: IColorSet): void {
this._refreshCharAtlas(colorSet);
}
protected _setTransparency(alpha: boolean): void {
// Do nothing when alpha doesn't change
if (alpha === this._alpha) {
return;
}
// Create new canvas and replace old one
const oldCanvas = this._canvas;
this._alpha = alpha;
// Cloning preserves properties
this._canvas = this._canvas.cloneNode() as HTMLCanvasElement;
this._initCanvas();
this._container.replaceChild(this._canvas, oldCanvas);
// Regenerate char atlas and force a full redraw
this._refreshCharAtlas(this._colors);
this.onGridChanged(0, this._bufferService.rows - 1);
}
/**
* Refreshes the char atlas, aquiring a new one if necessary.
* @param colorSet The color set to use for the char atlas.
*/
private _refreshCharAtlas(colorSet: IColorSet): void {
if (this._scaledCharWidth <= 0 && this._scaledCharHeight <= 0) {
return;
}
this._charAtlas = acquireCharAtlas(this._optionsService.rawOptions, this._rendererId, colorSet, this._scaledCharWidth, this._scaledCharHeight, this._coreBrowserService.dpr);
this._charAtlas.warmUp();
}
public resize(dim: IRenderDimensions): void {
this._scaledCellWidth = dim.scaledCellWidth;
this._scaledCellHeight = dim.scaledCellHeight;
this._scaledCharWidth = dim.scaledCharWidth;
this._scaledCharHeight = dim.scaledCharHeight;
this._scaledCharLeft = dim.scaledCharLeft;
this._scaledCharTop = dim.scaledCharTop;
this._canvas.width = dim.scaledCanvasWidth;
this._canvas.height = dim.scaledCanvasHeight;
this._canvas.style.width = `${dim.canvasWidth}px`;
this._canvas.style.height = `${dim.canvasHeight}px`;
// Draw the background if this is an opaque layer
if (!this._alpha) {
this._clearAll();
}
this._refreshCharAtlas(this._colors);
}
public abstract reset(): void;
public clearTextureAtlas(): void {
this._charAtlas?.clear();
}
/**
* Fills 1+ cells completely. This uses the existing fillStyle on the context.
* @param x The column to start at.
* @param y The row to start at
* @param width The number of columns to fill.
* @param height The number of rows to fill.
*/
protected _fillCells(x: number, y: number, width: number, height: number): void {
this._ctx.fillRect(
x * this._scaledCellWidth,
y * this._scaledCellHeight,
width * this._scaledCellWidth,
height * this._scaledCellHeight);
}
/**
* Fills a 1px line (2px on HDPI) at the middle of the cell. This uses the
* existing fillStyle on the context.
* @param x The column to fill.
* @param y The row to fill.
*/
protected _fillMiddleLineAtCells(x: number, y: number, width: number = 1): void {
const cellOffset = Math.ceil(this._scaledCellHeight * 0.5);
this._ctx.fillRect(
x * this._scaledCellWidth,
(y + 1) * this._scaledCellHeight - cellOffset - this._coreBrowserService.dpr,
width * this._scaledCellWidth,
this._coreBrowserService.dpr);
}
/**
* Fills a 1px line (2px on HDPI) at the bottom of the cell. This uses the
* existing fillStyle on the context.
* @param x The column to fill.
* @param y The row to fill.
*/
protected _fillBottomLineAtCells(x: number, y: number, width: number = 1, pixelOffset: number = 0): void {
this._ctx.fillRect(
x * this._scaledCellWidth,
(y + 1) * this._scaledCellHeight + pixelOffset - this._coreBrowserService.dpr - 1 /* Ensure it's drawn within the cell */,
width * this._scaledCellWidth,
this._coreBrowserService.dpr);
}
protected _curlyUnderlineAtCell(x: number, y: number, width: number = 1): void {
this._ctx.save();
this._ctx.beginPath();
this._ctx.strokeStyle = this._ctx.fillStyle;
const lineWidth = this._coreBrowserService.dpr;
this._ctx.lineWidth = lineWidth;
for (let xOffset = 0; xOffset < width; xOffset++) {
const xLeft = (x + xOffset) * this._scaledCellWidth;
const xMid = (x + xOffset + 0.5) * this._scaledCellWidth;
const xRight = (x + xOffset + 1) * this._scaledCellWidth;
const yMid = (y + 1) * this._scaledCellHeight - lineWidth - 1;
const yMidBot = yMid - lineWidth;
const yMidTop = yMid + lineWidth;
this._ctx.moveTo(xLeft, yMid);
this._ctx.bezierCurveTo(
xLeft, yMidBot,
xMid, yMidBot,
xMid, yMid
);
this._ctx.bezierCurveTo(
xMid, yMidTop,
xRight, yMidTop,
xRight, yMid
);
}
this._ctx.stroke();
this._ctx.restore();
}
protected _dottedUnderlineAtCell(x: number, y: number, width: number = 1): void {
this._ctx.save();
this._ctx.beginPath();
this._ctx.strokeStyle = this._ctx.fillStyle;
const lineWidth = this._coreBrowserService.dpr;
this._ctx.lineWidth = lineWidth;
this._ctx.setLineDash([lineWidth * 2, lineWidth]);
const xLeft = x * this._scaledCellWidth;
const yMid = (y + 1) * this._scaledCellHeight - lineWidth - 1;
this._ctx.moveTo(xLeft, yMid);
for (let xOffset = 0; xOffset < width; xOffset++) {
// const xLeft = x * this._scaledCellWidth;
const xRight = (x + width + xOffset) * this._scaledCellWidth;
this._ctx.lineTo(xRight, yMid);
}
this._ctx.stroke();
this._ctx.closePath();
this._ctx.restore();
}
protected _dashedUnderlineAtCell(x: number, y: number, width: number = 1): void {
this._ctx.save();
this._ctx.beginPath();
this._ctx.strokeStyle = this._ctx.fillStyle;
const lineWidth = this._coreBrowserService.dpr;
this._ctx.lineWidth = lineWidth;
this._ctx.setLineDash([lineWidth * 4, lineWidth * 3]);
const xLeft = x * this._scaledCellWidth;
const xRight = (x + width) * this._scaledCellWidth;
const yMid = (y + 1) * this._scaledCellHeight - lineWidth - 1;
this._ctx.moveTo(xLeft, yMid);
this._ctx.lineTo(xRight, yMid);
this._ctx.stroke();
this._ctx.closePath();
this._ctx.restore();
}
/**
* Fills a 1px line (2px on HDPI) at the left of the cell. This uses the
* existing fillStyle on the context.
* @param x The column to fill.
* @param y The row to fill.
*/
protected _fillLeftLineAtCell(x: number, y: number, width: number): void {
this._ctx.fillRect(
x * this._scaledCellWidth,
y * this._scaledCellHeight,
this._coreBrowserService.dpr * width,
this._scaledCellHeight);
}
/**
* Strokes a 1px rectangle (2px on HDPI) around a cell. This uses the existing
* strokeStyle on the context.
* @param x The column to fill.
* @param y The row to fill.
*/
protected _strokeRectAtCell(x: number, y: number, width: number, height: number): void {
const lineWidth = this._coreBrowserService.dpr;
this._ctx.lineWidth = lineWidth;
this._ctx.strokeRect(
x * this._scaledCellWidth + lineWidth / 2,
y * this._scaledCellHeight + (lineWidth / 2),
width * this._scaledCellWidth - lineWidth,
(height * this._scaledCellHeight) - lineWidth);
}
/**
* Clears the entire canvas.
*/
protected _clearAll(): void {
if (this._alpha) {
this._ctx.clearRect(0, 0, this._canvas.width, this._canvas.height);
} else {
this._ctx.fillStyle = this._colors.background.css;
this._ctx.fillRect(0, 0, this._canvas.width, this._canvas.height);
}
}
/**
* Clears 1+ cells completely.
* @param x The column to start at.
* @param y The row to start at.
* @param width The number of columns to clear.
* @param height The number of rows to clear.
*/
protected _clearCells(x: number, y: number, width: number, height: number): void {
if (this._alpha) {
this._ctx.clearRect(
x * this._scaledCellWidth,
y * this._scaledCellHeight,
width * this._scaledCellWidth,
height * this._scaledCellHeight);
} else {
this._ctx.fillStyle = this._colors.background.css;
this._ctx.fillRect(
x * this._scaledCellWidth,
y * this._scaledCellHeight,
width * this._scaledCellWidth,
height * this._scaledCellHeight);
}
}
/**
* Draws a truecolor character at the cell. The character will be clipped to
* ensure that it fits with the cell, including the cell to the right if it's
* a wide character. This uses the existing fillStyle on the context.
* @param cell The cell data for the character to draw.
* @param x The column to draw at.
* @param y The row to draw at.
* @param color The color of the character.
*/
protected _fillCharTrueColor(cell: CellData, x: number, y: number): void {
this._ctx.font = this._getFont(false, false);
this._ctx.textBaseline = TEXT_BASELINE;
this._clipRow(y);
// Draw custom characters if applicable
let drawSuccess = false;
if (this._optionsService.rawOptions.customGlyphs !== false) {
drawSuccess = tryDrawCustomChar(this._ctx, cell.getChars(), x * this._scaledCellWidth, y * this._scaledCellHeight, this._scaledCellWidth, this._scaledCellHeight, this._optionsService.rawOptions.fontSize, this._coreBrowserService.dpr);
}
// Draw the character
if (!drawSuccess) {
this._ctx.fillText(
cell.getChars(),
x * this._scaledCellWidth + this._scaledCharLeft,
y * this._scaledCellHeight + this._scaledCharTop + this._scaledCharHeight);
}
}
/**
* Draws one or more characters at a cell. If possible this will draw using
* the character atlas to reduce draw time.
* @param chars The character or characters.
* @param code The character code.
* @param width The width of the characters.
* @param x The column to draw at.
* @param y The row to draw at.
* @param fg The foreground color, in the format stored within the attributes.
* @param bg The background color, in the format stored within the attributes.
* This is used to validate whether a cached image can be used.
* @param bold Whether the text is bold.
*/
protected _drawChars(cell: ICellData, x: number, y: number): void {
const contrastColor = this._getContrastColor(cell, x, y);
// skip cache right away if we draw in RGB
// Note: to avoid bad runtime JoinedCellData will be skipped
// in the cache handler itself (atlasDidDraw == false) and
// fall through to uncached later down below
if (contrastColor || cell.isFgRGB() || cell.isBgRGB()) {
this._drawUncachedChars(cell, x, y, contrastColor);
return;
}
let fg;
let bg;
if (cell.isInverse()) {
fg = (cell.isBgDefault()) ? INVERTED_DEFAULT_COLOR : cell.getBgColor();
bg = (cell.isFgDefault()) ? INVERTED_DEFAULT_COLOR : cell.getFgColor();
} else {
bg = (cell.isBgDefault()) ? DEFAULT_COLOR : cell.getBgColor();
fg = (cell.isFgDefault()) ? DEFAULT_COLOR : cell.getFgColor();
}
const drawInBrightColor = this._optionsService.rawOptions.drawBoldTextInBrightColors && cell.isBold() && fg < 8;
fg += drawInBrightColor ? 8 : 0;
this._currentGlyphIdentifier.chars = cell.getChars() || WHITESPACE_CELL_CHAR;
this._currentGlyphIdentifier.code = cell.getCode() || WHITESPACE_CELL_CODE;
this._currentGlyphIdentifier.bg = bg;
this._currentGlyphIdentifier.fg = fg;
this._currentGlyphIdentifier.bold = !!cell.isBold();
this._currentGlyphIdentifier.dim = !!cell.isDim();
this._currentGlyphIdentifier.italic = !!cell.isItalic();
// Don't try cache the glyph if it uses any decoration foreground/background override.
let hasOverrides = false;
this._decorationService.forEachDecorationAtCell(x, y, undefined, d => {
if (d.backgroundColorRGB || d.foregroundColorRGB) {
hasOverrides = true;
}
});
const atlasDidDraw = hasOverrides ? false : this._charAtlas?.draw(this._ctx, this._currentGlyphIdentifier, x * this._scaledCellWidth + this._scaledCharLeft, y * this._scaledCellHeight + this._scaledCharTop);
if (!atlasDidDraw) {
this._drawUncachedChars(cell, x, y);
}
}
/**
* Draws one or more characters at one or more cells. The character(s) will be
* clipped to ensure that they fit with the cell(s), including the cell to the
* right if the last character is a wide character.
* @param chars The character.
* @param width The width of the character.
* @param fg The foreground color, in the format stored within the attributes.
* @param x The column to draw at.
* @param y The row to draw at.
*/
private _drawUncachedChars(cell: ICellData, x: number, y: number, fgOverride?: IColor): void {
this._ctx.save();
this._ctx.font = this._getFont(!!cell.isBold(), !!cell.isItalic());
this._ctx.textBaseline = TEXT_BASELINE;
if (cell.isInverse()) {
if (fgOverride) {
this._ctx.fillStyle = fgOverride.css;
} else if (cell.isBgDefault()) {
this._ctx.fillStyle = color.opaque(this._colors.background).css;
} else if (cell.isBgRGB()) {
this._ctx.fillStyle = `rgb(${AttributeData.toColorRGB(cell.getBgColor()).join(',')})`;
} else {
let bg = cell.getBgColor();
if (this._optionsService.rawOptions.drawBoldTextInBrightColors && cell.isBold() && bg < 8) {
bg += 8;
}
this._ctx.fillStyle = this._colors.ansi[bg].css;
}
} else {
if (fgOverride) {
this._ctx.fillStyle = fgOverride.css;
} else if (cell.isFgDefault()) {
this._ctx.fillStyle = this._colors.foreground.css;
} else if (cell.isFgRGB()) {
this._ctx.fillStyle = `rgb(${AttributeData.toColorRGB(cell.getFgColor()).join(',')})`;
} else {
let fg = cell.getFgColor();
if (this._optionsService.rawOptions.drawBoldTextInBrightColors && cell.isBold() && fg < 8) {
fg += 8;
}
this._ctx.fillStyle = this._colors.ansi[fg].css;
}
}
this._clipRow(y);
// Apply alpha to dim the character
if (cell.isDim()) {
this._ctx.globalAlpha = DIM_OPACITY;
}
// Draw custom characters if applicable
let drawSuccess = false;
if (this._optionsService.rawOptions.customGlyphs !== false) {
drawSuccess = tryDrawCustomChar(this._ctx, cell.getChars(), x * this._scaledCellWidth, y * this._scaledCellHeight, this._scaledCellWidth, this._scaledCellHeight, this._optionsService.rawOptions.fontSize, this._coreBrowserService.dpr);
}
// Draw the character
if (!drawSuccess) {
this._ctx.fillText(
cell.getChars(),
x * this._scaledCellWidth + this._scaledCharLeft,
y * this._scaledCellHeight + this._scaledCharTop + this._scaledCharHeight);
}
this._ctx.restore();
}
/**
* Clips a row to ensure no pixels will be drawn outside the cells in the row.
* @param y The row to clip.
*/
private _clipRow(y: number): void {
this._ctx.beginPath();
this._ctx.rect(
0,
y * this._scaledCellHeight,
this._bufferService.cols * this._scaledCellWidth,
this._scaledCellHeight);
this._ctx.clip();
}
/**
* Gets the current font.
* @param isBold If we should use the bold fontWeight.
*/
protected _getFont(isBold: boolean, isItalic: boolean): string {
const fontWeight = isBold ? this._optionsService.rawOptions.fontWeightBold : this._optionsService.rawOptions.fontWeight;
const fontStyle = isItalic ? 'italic' : '';
return `${fontStyle} ${fontWeight} ${this._optionsService.rawOptions.fontSize * this._coreBrowserService.dpr}px ${this._optionsService.rawOptions.fontFamily}`;
}
private _getContrastColor(cell: CellData, x: number, y: number): IColor | undefined {
// Get any decoration foreground/background overrides, this must be fetched before the early
// exist but applied after inverse
let bgOverride: number | undefined;
let fgOverride: number | undefined;
let isTop = false;
this._decorationService.forEachDecorationAtCell(x, y, undefined, d => {
if (d.options.layer !== 'top' && isTop) {
return;
}
if (d.backgroundColorRGB) {
bgOverride = d.backgroundColorRGB.rgba;
}
if (d.foregroundColorRGB) {
fgOverride = d.foregroundColorRGB.rgba;
}
isTop = d.options.layer === 'top';
});
// Apply selection foreground if applicable
if (!isTop) {
if (this._colors.selectionForeground && this._isCellInSelection(x, y)) {
fgOverride = this._colors.selectionForeground.rgba;
}
}
if (!bgOverride && !fgOverride && (this._optionsService.rawOptions.minimumContrastRatio === 1 || excludeFromContrastRatioDemands(cell.getCode()))) {
return undefined;
}
if (!bgOverride && !fgOverride) {
// Try get from cache
const adjustedColor = this._colors.contrastCache.getColor(cell.bg, cell.fg);
if (adjustedColor !== undefined) {
return adjustedColor || undefined;
}
}
let fgColor = cell.getFgColor();
let fgColorMode = cell.getFgColorMode();
let bgColor = cell.getBgColor();
let bgColorMode = cell.getBgColorMode();
const isInverse = !!cell.isInverse();
const isBold = !!cell.isInverse();
if (isInverse) {
const temp = fgColor;
fgColor = bgColor;
bgColor = temp;
const temp2 = fgColorMode;
fgColorMode = bgColorMode;
bgColorMode = temp2;
}
const bgRgba = this._resolveBackgroundRgba(bgOverride !== undefined ? Attributes.CM_RGB : bgColorMode, bgOverride ?? bgColor, isInverse);
const fgRgba = this._resolveForegroundRgba(fgColorMode, fgColor, isInverse, isBold);
let result = rgba.ensureContrastRatio(bgOverride ?? bgRgba, fgOverride ?? fgRgba, this._optionsService.rawOptions.minimumContrastRatio);
if (!result) {
if (!fgOverride) {
this._colors.contrastCache.setColor(cell.bg, cell.fg, null);
return undefined;
}
// If it was an override and there was no contrast change, set as the result
result = fgOverride;
}
const color: IColor = {
css: channels.toCss(
(result >> 24) & 0xFF,
(result >> 16) & 0xFF,
(result >> 8) & 0xFF
),
rgba: result
};
if (!bgOverride && !fgOverride) {
this._colors.contrastCache.setColor(cell.bg, cell.fg, color);
}
return color;
}
private _resolveBackgroundRgba(bgColorMode: number, bgColor: number, inverse: boolean): number {
switch (bgColorMode) {
case Attributes.CM_P16:
case Attributes.CM_P256:
return this._colors.ansi[bgColor].rgba;
case Attributes.CM_RGB:
return bgColor << 8;
case Attributes.CM_DEFAULT:
default:
if (inverse) {
return this._colors.foreground.rgba;
}
return this._colors.background.rgba;
}
}
private _resolveForegroundRgba(fgColorMode: number, fgColor: number, inverse: boolean, bold: boolean): number {
switch (fgColorMode) {
case Attributes.CM_P16:
case Attributes.CM_P256:
if (this._optionsService.rawOptions.drawBoldTextInBrightColors && bold && fgColor < 8) {
fgColor += 8;
}
return this._colors.ansi[fgColor].rgba;
case Attributes.CM_RGB:
return fgColor << 8;
case Attributes.CM_DEFAULT:
default:
if (inverse) {
return this._colors.background.rgba;
}
return this._colors.foreground.rgba;
}
}
private _isCellInSelection(x: number, y: number): boolean {
const start = this._selectionStart;
const end = this._selectionEnd;
if (!start || !end) {
return false;
}
if (this._columnSelectMode) {
return x >= start[0] && y >= start[1] &&
x < end[0] && y < end[1];
}
return (y > start[1] && y < end[1]) ||
(start[1] === end[1] && y === start[1] && x >= start[0] && x < end[0]) ||
(start[1] < end[1] && y === end[1] && x < end[0]) ||
(start[1] < end[1] && y === start[1] && x >= start[0]);
}
}
@@ -1,47 +0,0 @@
/**
* Copyright (c) 2022 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { ICharacterJoinerService, ICharSizeService, ICoreBrowserService, IRenderService } from 'browser/services/Services';
import { IColorSet } from 'browser/Types';
import { CanvasRenderer } from './CanvasRenderer';
import { IBufferService, ICoreService, IDecorationService, IOptionsService } from 'common/services/Services';
import { ITerminalAddon, Terminal } from 'xterm';
export class CanvasAddon implements ITerminalAddon {
private _terminal?: Terminal;
private _renderer?: CanvasRenderer;
public activate(terminal: Terminal): void {
if (!terminal.element) {
throw new Error('Cannot activate CanvasAddon before Terminal.open');
}
this._terminal = terminal;
const bufferService: IBufferService = (terminal as any)._core._bufferService;
const renderService: IRenderService = (terminal as any)._core._renderService;
const characterJoinerService: ICharacterJoinerService = (terminal as any)._core._characterJoinerService;
const charSizeService: ICharSizeService = (terminal as any)._core._charSizeService;
const coreService: ICoreService = (terminal as any)._core.coreService;
const coreBrowserService: ICoreBrowserService = (terminal as any)._core._coreBrowserService;
const decorationService: IDecorationService = (terminal as any)._core._decorationService;
const optionsService: IOptionsService = (terminal as any)._core.optionsService;
const colors: IColorSet = (terminal as any)._core._colorManager.colors;
const screenElement: HTMLElement = (terminal as any)._core.screenElement;
const linkifier = (terminal as any)._core.linkifier2;
this._renderer = new CanvasRenderer(colors, screenElement, linkifier, bufferService, charSizeService, optionsService, characterJoinerService, coreService, coreBrowserService, decorationService);
renderService.setRenderer(this._renderer);
renderService.onResize(bufferService.cols, bufferService.rows);
}
public dispose(): void {
if (!this._terminal) {
throw new Error('Cannot dispose CanvasAddon because it is activated');
}
const renderService: IRenderService = (this._terminal as any)._core._renderService;
renderService.setRenderer((this._terminal as any)._core._createRenderer());
renderService.onResize(this._terminal.cols, this._terminal.rows);
this._renderer?.dispose();
this._renderer = undefined;
}
}
@@ -1,206 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { TextRenderLayer } from './TextRenderLayer';
import { SelectionRenderLayer } from './SelectionRenderLayer';
import { CursorRenderLayer } from './CursorRenderLayer';
import { IRenderer, IRenderDimensions, IRequestRedrawEvent } from 'browser/renderer/Types';
import { IRenderLayer } from './Types';
import { LinkRenderLayer } from './LinkRenderLayer';
import { Disposable } from 'common/Lifecycle';
import { IColorSet, ILinkifier2 } from 'browser/Types';
import { ICharacterJoinerService, ICharSizeService, ICoreBrowserService } from 'browser/services/Services';
import { IBufferService, IOptionsService, IDecorationService, ICoreService } from 'common/services/Services';
import { removeTerminalFromCache } from './atlas/CharAtlasCache';
import { EventEmitter, IEvent } from 'common/EventEmitter';
import { observeDevicePixelDimensions } from 'browser/renderer/DevicePixelObserver';
let nextRendererId = 1;
export class CanvasRenderer extends Disposable implements IRenderer {
private _id = nextRendererId++;
private _renderLayers: IRenderLayer[];
private _devicePixelRatio: number;
public dimensions: IRenderDimensions;
private _onRequestRedraw = new EventEmitter<IRequestRedrawEvent>();
public get onRequestRedraw(): IEvent<IRequestRedrawEvent> { return this._onRequestRedraw.event; }
constructor(
private _colors: IColorSet,
private readonly _screenElement: HTMLElement,
linkifier2: ILinkifier2,
private readonly _bufferService: IBufferService,
private readonly _charSizeService: ICharSizeService,
private readonly _optionsService: IOptionsService,
characterJoinerService: ICharacterJoinerService,
coreService: ICoreService,
private readonly _coreBrowserService: ICoreBrowserService,
decorationService: IDecorationService
) {
super();
const allowTransparency = this._optionsService.rawOptions.allowTransparency;
this._renderLayers = [
new TextRenderLayer(this._screenElement, 0, this._colors, allowTransparency, this._id, this._bufferService, this._optionsService, characterJoinerService, decorationService, this._coreBrowserService),
new SelectionRenderLayer(this._screenElement, 1, this._colors, this._id, this._bufferService, this._coreBrowserService, decorationService, this._optionsService),
new LinkRenderLayer(this._screenElement, 2, this._colors, this._id, linkifier2, this._bufferService, this._optionsService, decorationService, this._coreBrowserService),
new CursorRenderLayer(this._screenElement, 3, this._colors, this._id, this._onRequestRedraw, this._bufferService, this._optionsService, coreService, this._coreBrowserService, decorationService)
];
this.dimensions = {
scaledCharWidth: 0,
scaledCharHeight: 0,
scaledCellWidth: 0,
scaledCellHeight: 0,
scaledCharLeft: 0,
scaledCharTop: 0,
scaledCanvasWidth: 0,
scaledCanvasHeight: 0,
canvasWidth: 0,
canvasHeight: 0,
actualCellWidth: 0,
actualCellHeight: 0
};
this._devicePixelRatio = this._coreBrowserService.dpr;
this._updateDimensions();
this.register(observeDevicePixelDimensions(this._renderLayers[0].canvas, this._coreBrowserService.window, (w, h) => this._setCanvasDevicePixelDimensions(w, h)));
this.onOptionsChanged();
}
public dispose(): void {
for (const l of this._renderLayers) {
l.dispose();
}
super.dispose();
removeTerminalFromCache(this._id);
}
public onDevicePixelRatioChange(): void {
// If the device pixel ratio changed, the char atlas needs to be regenerated
// and the terminal needs to refreshed
if (this._devicePixelRatio !== this._coreBrowserService.dpr) {
this._devicePixelRatio = this._coreBrowserService.dpr;
this.onResize(this._bufferService.cols, this._bufferService.rows);
}
}
public setColors(colors: IColorSet): void {
this._colors = colors;
// Clear layers and force a full render
for (const l of this._renderLayers) {
l.setColors(this._colors);
l.reset();
}
}
public onResize(cols: number, rows: number): void {
// Update character and canvas dimensions
this._updateDimensions();
// Resize all render layers
for (const l of this._renderLayers) {
l.resize(this.dimensions);
}
// Resize the screen
this._screenElement.style.width = `${this.dimensions.canvasWidth}px`;
this._screenElement.style.height = `${this.dimensions.canvasHeight}px`;
}
public onCharSizeChanged(): void {
this.onResize(this._bufferService.cols, this._bufferService.rows);
}
public onBlur(): void {
this._runOperation(l => l.onBlur());
}
public onFocus(): void {
this._runOperation(l => l.onFocus());
}
public onSelectionChanged(start: [number, number] | undefined, end: [number, number] | undefined, columnSelectMode: boolean = false): void {
this._runOperation(l => l.onSelectionChanged(start, end, columnSelectMode));
// Selection foreground requires a full re-render
if (this._colors.selectionForeground) {
this._onRequestRedraw.fire({ start: 0, end: this._bufferService.rows - 1 });
}
}
public onCursorMove(): void {
this._runOperation(l => l.onCursorMove());
}
public onOptionsChanged(): void {
this._runOperation(l => l.onOptionsChanged());
}
public clear(): void {
this._runOperation(l => l.reset());
}
private _runOperation(operation: (layer: IRenderLayer) => void): void {
for (const l of this._renderLayers) {
operation(l);
}
}
/**
* Performs the refresh loop callback, calling refresh only if a refresh is
* necessary before queueing up the next one.
*/
public renderRows(start: number, end: number): void {
for (const l of this._renderLayers) {
l.onGridChanged(start, end);
}
}
public clearTextureAtlas(): void {
for (const layer of this._renderLayers) {
layer.clearTextureAtlas();
}
}
/**
* Recalculates the character and canvas dimensions.
*/
private _updateDimensions(): void {
if (!this._charSizeService.hasValidSize) {
return;
}
// See the WebGL renderer for an explanation of this section.
const dpr = this._coreBrowserService.dpr;
this.dimensions.scaledCharWidth = Math.floor(this._charSizeService.width * dpr);
this.dimensions.scaledCharHeight = Math.ceil(this._charSizeService.height * dpr);
this.dimensions.scaledCellHeight = Math.floor(this.dimensions.scaledCharHeight * this._optionsService.rawOptions.lineHeight);
this.dimensions.scaledCharTop = this._optionsService.rawOptions.lineHeight === 1 ? 0 : Math.round((this.dimensions.scaledCellHeight - this.dimensions.scaledCharHeight) / 2);
this.dimensions.scaledCellWidth = this.dimensions.scaledCharWidth + Math.round(this._optionsService.rawOptions.letterSpacing);
this.dimensions.scaledCharLeft = Math.floor(this._optionsService.rawOptions.letterSpacing / 2);
this.dimensions.scaledCanvasHeight = this._bufferService.rows * this.dimensions.scaledCellHeight;
this.dimensions.scaledCanvasWidth = this._bufferService.cols * this.dimensions.scaledCellWidth;
this.dimensions.canvasHeight = Math.round(this.dimensions.scaledCanvasHeight / dpr);
this.dimensions.canvasWidth = Math.round(this.dimensions.scaledCanvasWidth / dpr);
this.dimensions.actualCellHeight = this.dimensions.canvasHeight / this._bufferService.rows;
this.dimensions.actualCellWidth = this.dimensions.canvasWidth / this._bufferService.cols;
}
private _setCanvasDevicePixelDimensions(width: number, height: number): void {
this.dimensions.scaledCanvasHeight = height;
this.dimensions.scaledCanvasWidth = width;
// Resize all render layers
for (const l of this._renderLayers) {
l.resize(this.dimensions);
}
this._requestRedrawViewport();
}
private _requestRedrawViewport(): void {
this._onRequestRedraw.fire({ start: 0, end: this._bufferService.rows - 1 });
}
}
@@ -1,379 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { IRenderDimensions, IRequestRedrawEvent } from 'browser/renderer/Types';
import { BaseRenderLayer } from './BaseRenderLayer';
import { ICellData } from 'common/Types';
import { CellData } from 'common/buffer/CellData';
import { IColorSet } from 'browser/Types';
import { IBufferService, IOptionsService, ICoreService, IDecorationService } from 'common/services/Services';
import { IEventEmitter } from 'common/EventEmitter';
import { ICoreBrowserService } from 'browser/services/Services';
interface ICursorState {
x: number;
y: number;
isFocused: boolean;
style: string;
width: number;
}
/**
* The time between cursor blinks.
*/
const BLINK_INTERVAL = 600;
export class CursorRenderLayer extends BaseRenderLayer {
private _state: ICursorState;
private _cursorRenderers: {[key: string]: (x: number, y: number, cell: ICellData) => void};
private _cursorBlinkStateManager: CursorBlinkStateManager | undefined;
private _cell: ICellData = new CellData();
constructor(
container: HTMLElement,
zIndex: number,
colors: IColorSet,
rendererId: number,
private readonly _onRequestRedraw: IEventEmitter<IRequestRedrawEvent>,
bufferService: IBufferService,
optionsService: IOptionsService,
private readonly _coreService: ICoreService,
coreBrowserService: ICoreBrowserService,
decorationService: IDecorationService
) {
super(container, 'cursor', zIndex, true, colors, rendererId, bufferService, optionsService, decorationService, coreBrowserService);
this._state = {
x: 0,
y: 0,
isFocused: false,
style: '',
width: 0
};
this._cursorRenderers = {
'bar': this._renderBarCursor.bind(this),
'block': this._renderBlockCursor.bind(this),
'underline': this._renderUnderlineCursor.bind(this)
};
}
public dispose(): void {
if (this._cursorBlinkStateManager) {
this._cursorBlinkStateManager.dispose();
this._cursorBlinkStateManager = undefined;
}
super.dispose();
}
public resize(dim: IRenderDimensions): void {
super.resize(dim);
// Resizing the canvas discards the contents of the canvas so clear state
this._state = {
x: 0,
y: 0,
isFocused: false,
style: '',
width: 0
};
}
public reset(): void {
this._clearCursor();
this._cursorBlinkStateManager?.restartBlinkAnimation();
this.onOptionsChanged();
}
public onBlur(): void {
this._cursorBlinkStateManager?.pause();
this._onRequestRedraw.fire({ start: this._bufferService.buffer.y, end: this._bufferService.buffer.y });
}
public onFocus(): void {
this._cursorBlinkStateManager?.resume();
this._onRequestRedraw.fire({ start: this._bufferService.buffer.y, end: this._bufferService.buffer.y });
}
public onOptionsChanged(): void {
if (this._optionsService.rawOptions.cursorBlink) {
if (!this._cursorBlinkStateManager) {
this._cursorBlinkStateManager = new CursorBlinkStateManager(this._coreBrowserService.isFocused, () => {
this._render(true);
}, this._coreBrowserService);
}
} else {
this._cursorBlinkStateManager?.dispose();
this._cursorBlinkStateManager = undefined;
}
// Request a refresh from the terminal as management of rendering is being
// moved back to the terminal
this._onRequestRedraw.fire({ start: this._bufferService.buffer.y, end: this._bufferService.buffer.y });
}
public onCursorMove(): void {
this._cursorBlinkStateManager?.restartBlinkAnimation();
}
public onGridChanged(startRow: number, endRow: number): void {
if (!this._cursorBlinkStateManager || this._cursorBlinkStateManager.isPaused) {
this._render(false);
} else {
this._cursorBlinkStateManager.restartBlinkAnimation();
}
}
private _render(triggeredByAnimationFrame: boolean): void {
// Don't draw the cursor if it's hidden
if (!this._coreService.isCursorInitialized || this._coreService.isCursorHidden) {
this._clearCursor();
return;
}
const cursorY = this._bufferService.buffer.ybase + this._bufferService.buffer.y;
const viewportRelativeCursorY = cursorY - this._bufferService.buffer.ydisp;
// Don't draw the cursor if it's off-screen
if (viewportRelativeCursorY < 0 || viewportRelativeCursorY >= this._bufferService.rows) {
this._clearCursor();
return;
}
// in case cursor.x == cols adjust visual cursor to cols - 1
const cursorX = Math.min(this._bufferService.buffer.x, this._bufferService.cols - 1);
this._bufferService.buffer.lines.get(cursorY)!.loadCell(cursorX, this._cell);
if (this._cell.content === undefined) {
return;
}
if (!this._coreBrowserService.isFocused) {
this._clearCursor();
this._ctx.save();
this._ctx.fillStyle = this._colors.cursor.css;
const cursorStyle = this._optionsService.rawOptions.cursorStyle;
if (cursorStyle && cursorStyle !== 'block') {
this._cursorRenderers[cursorStyle](cursorX, viewportRelativeCursorY, this._cell);
} else {
this._renderBlurCursor(cursorX, viewportRelativeCursorY, this._cell);
}
this._ctx.restore();
this._state.x = cursorX;
this._state.y = viewportRelativeCursorY;
this._state.isFocused = false;
this._state.style = cursorStyle;
this._state.width = this._cell.getWidth();
return;
}
// Don't draw the cursor if it's blinking
if (this._cursorBlinkStateManager && !this._cursorBlinkStateManager.isCursorVisible) {
this._clearCursor();
return;
}
if (this._state) {
// The cursor is already in the correct spot, don't redraw
if (this._state.x === cursorX &&
this._state.y === viewportRelativeCursorY &&
this._state.isFocused === this._coreBrowserService.isFocused &&
this._state.style === this._optionsService.rawOptions.cursorStyle &&
this._state.width === this._cell.getWidth()) {
return;
}
this._clearCursor();
}
this._ctx.save();
this._cursorRenderers[this._optionsService.rawOptions.cursorStyle || 'block'](cursorX, viewportRelativeCursorY, this._cell);
this._ctx.restore();
this._state.x = cursorX;
this._state.y = viewportRelativeCursorY;
this._state.isFocused = false;
this._state.style = this._optionsService.rawOptions.cursorStyle;
this._state.width = this._cell.getWidth();
}
private _clearCursor(): void {
if (this._state) {
// Avoid potential rounding errors when device pixel ratio is less than 1
if (this._coreBrowserService.dpr < 1) {
this._clearAll();
} else {
this._clearCells(this._state.x, this._state.y, this._state.width, 1);
}
this._state = {
x: 0,
y: 0,
isFocused: false,
style: '',
width: 0
};
}
}
private _renderBarCursor(x: number, y: number, cell: ICellData): void {
this._ctx.save();
this._ctx.fillStyle = this._colors.cursor.css;
this._fillLeftLineAtCell(x, y, this._optionsService.rawOptions.cursorWidth);
this._ctx.restore();
}
private _renderBlockCursor(x: number, y: number, cell: ICellData): void {
this._ctx.save();
this._ctx.fillStyle = this._colors.cursor.css;
this._fillCells(x, y, cell.getWidth(), 1);
this._ctx.fillStyle = this._colors.cursorAccent.css;
this._fillCharTrueColor(cell, x, y);
this._ctx.restore();
}
private _renderUnderlineCursor(x: number, y: number, cell: ICellData): void {
this._ctx.save();
this._ctx.fillStyle = this._colors.cursor.css;
this._fillBottomLineAtCells(x, y);
this._ctx.restore();
}
private _renderBlurCursor(x: number, y: number, cell: ICellData): void {
this._ctx.save();
this._ctx.strokeStyle = this._colors.cursor.css;
this._strokeRectAtCell(x, y, cell.getWidth(), 1);
this._ctx.restore();
}
}
class CursorBlinkStateManager {
public isCursorVisible: boolean;
private _animationFrame: number | undefined;
private _blinkStartTimeout: number | undefined;
private _blinkInterval: number | undefined;
/**
* The time at which the animation frame was restarted, this is used on the
* next render to restart the timers so they don't need to restart the timers
* multiple times over a short period.
*/
private _animationTimeRestarted: number | undefined;
constructor(
isFocused: boolean,
private _renderCallback: () => void,
private _coreBrowserService: ICoreBrowserService
) {
this.isCursorVisible = true;
if (isFocused) {
this._restartInterval();
}
}
public get isPaused(): boolean { return !(this._blinkStartTimeout || this._blinkInterval); }
public dispose(): void {
if (this._blinkInterval) {
this._coreBrowserService.window.clearInterval(this._blinkInterval);
this._blinkInterval = undefined;
}
if (this._blinkStartTimeout) {
this._coreBrowserService.window.clearTimeout(this._blinkStartTimeout);
this._blinkStartTimeout = undefined;
}
if (this._animationFrame) {
this._coreBrowserService.window.cancelAnimationFrame(this._animationFrame);
this._animationFrame = undefined;
}
}
public restartBlinkAnimation(): void {
if (this.isPaused) {
return;
}
// Save a timestamp so that the restart can be done on the next interval
this._animationTimeRestarted = Date.now();
// Force a cursor render to ensure it's visible and in the correct position
this.isCursorVisible = true;
if (!this._animationFrame) {
this._animationFrame = this._coreBrowserService.window.requestAnimationFrame(() => {
this._renderCallback();
this._animationFrame = undefined;
});
}
}
private _restartInterval(timeToStart: number = BLINK_INTERVAL): void {
// Clear any existing interval
if (this._blinkInterval) {
this._coreBrowserService.window.clearInterval(this._blinkInterval);
this._blinkInterval = undefined;
}
// Setup the initial timeout which will hide the cursor, this is done before
// the regular interval is setup in order to support restarting the blink
// animation in a lightweight way (without thrashing clearInterval and
// setInterval).
this._blinkStartTimeout = this._coreBrowserService.window.setTimeout(() => {
// Check if another animation restart was requested while this was being
// started
if (this._animationTimeRestarted) {
const time = BLINK_INTERVAL - (Date.now() - this._animationTimeRestarted);
this._animationTimeRestarted = undefined;
if (time > 0) {
this._restartInterval(time);
return;
}
}
// Hide the cursor
this.isCursorVisible = false;
this._animationFrame = this._coreBrowserService.window.requestAnimationFrame(() => {
this._renderCallback();
this._animationFrame = undefined;
});
// Setup the blink interval
this._blinkInterval = this._coreBrowserService.window.setInterval(() => {
// Adjust the animation time if it was restarted
if (this._animationTimeRestarted) {
// calc time diff
// Make restart interval do a setTimeout initially?
const time = BLINK_INTERVAL - (Date.now() - this._animationTimeRestarted);
this._animationTimeRestarted = undefined;
this._restartInterval(time);
return;
}
// Invert visibility and render
this.isCursorVisible = !this.isCursorVisible;
this._animationFrame = this._coreBrowserService.window.requestAnimationFrame(() => {
this._renderCallback();
this._animationFrame = undefined;
});
}, BLINK_INTERVAL);
}, timeToStart);
}
public pause(): void {
this.isCursorVisible = true;
if (this._blinkInterval) {
this._coreBrowserService.window.clearInterval(this._blinkInterval);
this._blinkInterval = undefined;
}
if (this._blinkStartTimeout) {
this._coreBrowserService.window.clearTimeout(this._blinkStartTimeout);
this._blinkStartTimeout = undefined;
}
if (this._animationFrame) {
this._coreBrowserService.window.cancelAnimationFrame(this._animationFrame);
this._animationFrame = undefined;
}
}
public resume(): void {
// Clear out any existing timers just in case
this.pause();
this._animationTimeRestarted = undefined;
this._restartInterval();
this.restartBlinkAnimation();
}
}
@@ -1,83 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { IRenderDimensions } from 'browser/renderer/Types';
import { BaseRenderLayer } from './BaseRenderLayer';
import { INVERTED_DEFAULT_COLOR } from 'browser/renderer/Constants';
import { ICoreBrowserService } from 'browser/services/Services';
import { is256Color } from './atlas/CharAtlasUtils';
import { IColorSet, ILinkifierEvent, ILinkifier2 } from 'browser/Types';
import { IBufferService, IDecorationService, IOptionsService } from 'common/services/Services';
export class LinkRenderLayer extends BaseRenderLayer {
private _state: ILinkifierEvent | undefined;
constructor(
container: HTMLElement,
zIndex: number,
colors: IColorSet,
rendererId: number,
linkifier2: ILinkifier2,
bufferService: IBufferService,
optionsService: IOptionsService,
decorationService: IDecorationService,
coreBrowserService: ICoreBrowserService
) {
super(container, 'link', zIndex, true, colors, rendererId, bufferService, optionsService, decorationService, coreBrowserService);
linkifier2.onShowLinkUnderline(e => this._onShowLinkUnderline(e));
linkifier2.onHideLinkUnderline(e => this._onHideLinkUnderline(e));
}
public resize(dim: IRenderDimensions): void {
super.resize(dim);
// Resizing the canvas discards the contents of the canvas so clear state
this._state = undefined;
}
public reset(): void {
this._clearCurrentLink();
}
private _clearCurrentLink(): void {
if (this._state) {
this._clearCells(this._state.x1, this._state.y1, this._state.cols - this._state.x1, 1);
const middleRowCount = this._state.y2 - this._state.y1 - 1;
if (middleRowCount > 0) {
this._clearCells(0, this._state.y1 + 1, this._state.cols, middleRowCount);
}
this._clearCells(0, this._state.y2, this._state.x2, 1);
this._state = undefined;
}
}
private _onShowLinkUnderline(e: ILinkifierEvent): void {
if (e.fg === INVERTED_DEFAULT_COLOR) {
this._ctx.fillStyle = this._colors.background.css;
} else if (e.fg && is256Color(e.fg)) {
// 256 color support
this._ctx.fillStyle = this._colors.ansi[e.fg].css;
} else {
this._ctx.fillStyle = this._colors.foreground.css;
}
if (e.y1 === e.y2) {
// Single line link
this._fillBottomLineAtCells(e.x1, e.y1, e.x2 - e.x1);
} else {
// Multi-line link
this._fillBottomLineAtCells(e.x1, e.y1, e.cols - e.x1);
for (let y = e.y1 + 1; y < e.y2; y++) {
this._fillBottomLineAtCells(0, y, e.cols);
}
this._fillBottomLineAtCells(0, e.y2, e.x2);
}
this._state = e;
}
private _onHideLinkUnderline(e: ILinkifierEvent): void {
this._clearCurrentLink();
}
}
@@ -1,151 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { IRenderDimensions } from 'browser/renderer/Types';
import { BaseRenderLayer } from './BaseRenderLayer';
import { IColorSet } from 'browser/Types';
import { IBufferService, IDecorationService, IOptionsService } from 'common/services/Services';
import { ICoreBrowserService } from 'browser/services/Services';
interface ISelectionState {
start?: [number, number];
end?: [number, number];
columnSelectMode?: boolean;
ydisp?: number;
}
export class SelectionRenderLayer extends BaseRenderLayer {
private _state!: ISelectionState;
constructor(
container: HTMLElement,
zIndex: number,
colors: IColorSet,
rendererId: number,
bufferService: IBufferService,
coreBrowserService: ICoreBrowserService,
decorationService: IDecorationService,
optionsService: IOptionsService
) {
super(container, 'selection', zIndex, true, colors, rendererId, bufferService, optionsService, decorationService, coreBrowserService);
this._clearState();
}
private _clearState(): void {
this._state = {
start: undefined,
end: undefined,
columnSelectMode: undefined,
ydisp: undefined
};
}
public resize(dim: IRenderDimensions): void {
super.resize(dim);
// On resize use the base render layer's cached selection values since resize clears _state
// inside reset.
if (this._selectionStart && this._selectionEnd) {
this._redrawSelection(this._selectionStart, this._selectionEnd, this._columnSelectMode);
}
}
public reset(): void {
if (this._state.start && this._state.end) {
this._clearState();
this._clearAll();
}
}
public onBlur(): void {
this.reset();
this._redrawSelection(this._selectionStart, this._selectionEnd, this._columnSelectMode);
}
public onFocus(): void {
this.reset();
this._redrawSelection(this._selectionStart, this._selectionEnd, this._columnSelectMode);
}
public onSelectionChanged(start: [number, number] | undefined, end: [number, number] | undefined, columnSelectMode: boolean): void {
super.onSelectionChanged(start, end, columnSelectMode);
this._redrawSelection(start, end, columnSelectMode);
}
private _redrawSelection(start: [number, number] | undefined, end: [number, number] | undefined, columnSelectMode: boolean): void {
// Selection has not changed
if (!this._didStateChange(start, end, columnSelectMode, this._bufferService.buffer.ydisp)) {
return;
}
// Remove all selections
this._clearAll();
// Selection does not exist
if (!start || !end) {
this._clearState();
return;
}
// Translate from buffer position to viewport position
const viewportStartRow = start[1] - this._bufferService.buffer.ydisp;
const viewportEndRow = end[1] - this._bufferService.buffer.ydisp;
const viewportCappedStartRow = Math.max(viewportStartRow, 0);
const viewportCappedEndRow = Math.min(viewportEndRow, this._bufferService.rows - 1);
// No need to draw the selection
if (viewportCappedStartRow >= this._bufferService.rows || viewportCappedEndRow < 0) {
this._state.ydisp = this._bufferService.buffer.ydisp;
return;
}
this._ctx.fillStyle = (this._coreBrowserService.isFocused
? this._colors.selectionBackgroundTransparent
: this._colors.selectionInactiveBackgroundTransparent).css;
if (columnSelectMode) {
const startCol = start[0];
const width = end[0] - startCol;
const height = viewportCappedEndRow - viewportCappedStartRow + 1;
this._fillCells(startCol, viewportCappedStartRow, width, height);
} else {
// Draw first row
const startCol = viewportStartRow === viewportCappedStartRow ? start[0] : 0;
const startRowEndCol = viewportCappedStartRow === viewportEndRow ? end[0] : this._bufferService.cols;
this._fillCells(startCol, viewportCappedStartRow, startRowEndCol - startCol, 1);
// Draw middle rows
const middleRowsCount = Math.max(viewportCappedEndRow - viewportCappedStartRow - 1, 0);
this._fillCells(0, viewportCappedStartRow + 1, this._bufferService.cols, middleRowsCount);
// Draw final row
if (viewportCappedStartRow !== viewportCappedEndRow) {
// Only draw viewportEndRow if it's not the same as viewportStartRow
const endCol = viewportEndRow === viewportCappedEndRow ? end[0] : this._bufferService.cols;
this._fillCells(0, viewportCappedEndRow, endCol, 1);
}
}
// Save state for next render
this._state.start = [start[0], start[1]];
this._state.end = [end[0], end[1]];
this._state.columnSelectMode = columnSelectMode;
this._state.ydisp = this._bufferService.buffer.ydisp;
}
private _didStateChange(start: [number, number] | undefined, end: [number, number] | undefined, columnSelectMode: boolean, ydisp: number): boolean {
return !this._areCoordinatesEqual(start, this._state.start) ||
!this._areCoordinatesEqual(end, this._state.end) ||
columnSelectMode !== this._state.columnSelectMode ||
ydisp !== this._state.ydisp;
}
private _areCoordinatesEqual(coord1: [number, number] | undefined, coord2: [number, number] | undefined): boolean {
if (!coord1 || !coord2) {
return false;
}
return coord1[0] === coord2[0] && coord1[1] === coord2[1];
}
}
@@ -1,381 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { IRenderDimensions } from 'browser/renderer/Types';
import { CharData, ICellData } from 'common/Types';
import { GridCache } from './GridCache';
import { BaseRenderLayer } from './BaseRenderLayer';
import { AttributeData } from 'common/buffer/AttributeData';
import { NULL_CELL_CODE, Content, UnderlineStyle } from 'common/buffer/Constants';
import { IColorSet } from 'browser/Types';
import { CellData } from 'common/buffer/CellData';
import { IOptionsService, IBufferService, IDecorationService } from 'common/services/Services';
import { ICharacterJoinerService, ICoreBrowserService } from 'browser/services/Services';
import { JoinedCellData } from 'browser/services/CharacterJoinerService';
import { color, css } from 'common/Color';
/**
* This CharData looks like a null character, which will forc a clear and render
* when the character changes (a regular space ' ' character may not as it's
* drawn state is a cleared cell).
*/
// const OVERLAP_OWNED_CHAR_DATA: CharData = [null, '', 0, -1];
export class TextRenderLayer extends BaseRenderLayer {
private _state: GridCache<CharData>;
private _characterWidth: number = 0;
private _characterFont: string = '';
private _characterOverlapCache: { [key: string]: boolean } = {};
private _workCell = new CellData();
constructor(
container: HTMLElement,
zIndex: number,
colors: IColorSet,
alpha: boolean,
rendererId: number,
bufferService: IBufferService,
optionsService: IOptionsService,
private readonly _characterJoinerService: ICharacterJoinerService,
decorationService: IDecorationService,
coreBrowserService: ICoreBrowserService
) {
super(container, 'text', zIndex, alpha, colors, rendererId, bufferService, optionsService, decorationService, coreBrowserService);
this._state = new GridCache<CharData>();
}
public resize(dim: IRenderDimensions): void {
super.resize(dim);
// Clear the character width cache if the font or width has changed
const terminalFont = this._getFont(false, false);
if (this._characterWidth !== dim.scaledCharWidth || this._characterFont !== terminalFont) {
this._characterWidth = dim.scaledCharWidth;
this._characterFont = terminalFont;
this._characterOverlapCache = {};
}
// Resizing the canvas discards the contents of the canvas so clear state
this._state.clear();
this._state.resize(this._bufferService.cols, this._bufferService.rows);
}
public reset(): void {
this._state.clear();
this._clearAll();
}
private _forEachCell(
firstRow: number,
lastRow: number,
callback: (
cell: ICellData,
x: number,
y: number
) => void
): void {
for (let y = firstRow; y <= lastRow; y++) {
const row = y + this._bufferService.buffer.ydisp;
const line = this._bufferService.buffer.lines.get(row);
const joinedRanges = this._characterJoinerService.getJoinedCharacters(row);
for (let x = 0; x < this._bufferService.cols; x++) {
line!.loadCell(x, this._workCell);
let cell = this._workCell;
// If true, indicates that the current character(s) to draw were joined.
let isJoined = false;
let lastCharX = x;
// The character to the left is a wide character, drawing is owned by
// the char at x-1
if (cell.getWidth() === 0) {
continue;
}
// Process any joined character ranges as needed. Because of how the
// ranges are produced, we know that they are valid for the characters
// and attributes of our input.
if (joinedRanges.length > 0 && x === joinedRanges[0][0]) {
isJoined = true;
const range = joinedRanges.shift()!;
// We already know the exact start and end column of the joined range,
// so we get the string and width representing it directly
cell = new JoinedCellData(
this._workCell,
line!.translateToString(true, range[0], range[1]),
range[1] - range[0]
);
// Skip over the cells occupied by this range in the loop
lastCharX = range[1] - 1;
}
// If the character is an overlapping char and the character to the
// right is a space, take ownership of the cell to the right. We skip
// this check for joined characters because their rendering likely won't
// yield the same result as rendering the last character individually.
if (!isJoined && this._isOverlapping(cell)) {
// If the character is overlapping, we want to force a re-render on every
// frame. This is specifically to work around the case where two
// overlaping chars `a` and `b` are adjacent, the cursor is moved to b and a
// space is added. Without this, the first half of `b` would never
// get removed, and `a` would not re-render because it thinks it's
// already in the correct state.
// this._state.cache[x][y] = OVERLAP_OWNED_CHAR_DATA;
if (lastCharX < line!.length - 1 && line!.getCodePoint(lastCharX + 1) === NULL_CELL_CODE) {
// patch width to 2
cell.content &= ~Content.WIDTH_MASK;
cell.content |= 2 << Content.WIDTH_SHIFT;
// this._clearChar(x + 1, y);
// The overlapping char's char data will force a clear and render when the
// overlapping char is no longer to the left of the character and also when
// the space changes to another character.
// this._state.cache[x + 1][y] = OVERLAP_OWNED_CHAR_DATA;
}
}
callback(
cell,
x,
y
);
x = lastCharX;
}
}
}
/**
* Draws the background for a specified range of columns. Tries to batch adjacent cells of the
* same color together to reduce draw calls.
*/
private _drawBackground(firstRow: number, lastRow: number): void {
const ctx = this._ctx;
const cols = this._bufferService.cols;
let startX: number = 0;
let startY: number = 0;
let prevFillStyle: string | null = null;
ctx.save();
this._forEachCell(firstRow, lastRow, (cell, x, y) => {
// libvte and xterm both draw the background (but not foreground) of invisible characters,
// so we should too.
let nextFillStyle = null; // null represents default background color
if (cell.isInverse()) {
if (cell.isFgDefault()) {
nextFillStyle = this._colors.foreground.css;
} else if (cell.isFgRGB()) {
nextFillStyle = `rgb(${AttributeData.toColorRGB(cell.getFgColor()).join(',')})`;
} else {
nextFillStyle = this._colors.ansi[cell.getFgColor()].css;
}
} else if (cell.isBgRGB()) {
nextFillStyle = `rgb(${AttributeData.toColorRGB(cell.getBgColor()).join(',')})`;
} else if (cell.isBgPalette()) {
nextFillStyle = this._colors.ansi[cell.getBgColor()].css;
}
// Apply dim to the background, this is relatively slow as the CSS is re-parsed but dim is
// rarely used
if (nextFillStyle && cell.isDim()) {
nextFillStyle = color.multiplyOpacity(css.toColor(nextFillStyle), 0.5).css;
}
// Get any decoration foreground/background overrides, this must be fetched before the early
// exist but applied after inverse
let isTop = false;
this._decorationService.forEachDecorationAtCell(x, this._bufferService.buffer.ydisp + y, undefined, d => {
if (d.options.layer !== 'top' && isTop) {
return;
}
if (d.backgroundColorRGB) {
nextFillStyle = d.backgroundColorRGB.css;
}
isTop = d.options.layer === 'top';
});
if (prevFillStyle === null) {
// This is either the first iteration, or the default background was set. Either way, we
// don't need to draw anything.
startX = x;
startY = y;
}
if (y !== startY) {
// our row changed, draw the previous row
ctx.fillStyle = prevFillStyle || '';
this._fillCells(startX, startY, cols - startX, 1);
startX = x;
startY = y;
} else if (prevFillStyle !== nextFillStyle) {
// our color changed, draw the previous characters in this row
ctx.fillStyle = prevFillStyle || '';
this._fillCells(startX, startY, x - startX, 1);
startX = x;
startY = y;
}
prevFillStyle = nextFillStyle;
});
// flush the last color we encountered
if (prevFillStyle !== null) {
ctx.fillStyle = prevFillStyle;
this._fillCells(startX, startY, cols - startX, 1);
}
ctx.restore();
}
private _drawForeground(firstRow: number, lastRow: number): void {
this._forEachCell(firstRow, lastRow, (cell, x, y) => {
if (cell.isInvisible()) {
return;
}
this._drawChars(cell, x, y);
if (cell.isUnderline() || cell.isStrikethrough()) {
this._ctx.save();
if (cell.isInverse()) {
if (cell.isBgDefault()) {
this._ctx.fillStyle = this._colors.background.css;
} else if (cell.isBgRGB()) {
this._ctx.fillStyle = `rgb(${AttributeData.toColorRGB(cell.getBgColor()).join(',')})`;
} else {
let bg = cell.getBgColor();
if (this._optionsService.rawOptions.drawBoldTextInBrightColors && cell.isBold() && bg < 8) {
bg += 8;
}
this._ctx.fillStyle = this._colors.ansi[bg].css;
}
} else {
if (cell.isFgDefault()) {
this._ctx.fillStyle = this._colors.foreground.css;
} else if (cell.isFgRGB()) {
this._ctx.fillStyle = `rgb(${AttributeData.toColorRGB(cell.getFgColor()).join(',')})`;
} else {
let fg = cell.getFgColor();
if (this._optionsService.rawOptions.drawBoldTextInBrightColors && cell.isBold() && fg < 8) {
fg += 8;
}
this._ctx.fillStyle = this._colors.ansi[fg].css;
}
}
if (cell.isStrikethrough()) {
this._fillMiddleLineAtCells(x, y, cell.getWidth());
}
if (cell.isUnderline()) {
if (!cell.isUnderlineColorDefault()) {
if (cell.isUnderlineColorRGB()) {
this._ctx.fillStyle = `rgb(${AttributeData.toColorRGB(cell.getUnderlineColor()).join(',')})`;
} else {
let fg = cell.getUnderlineColor();
if (this._optionsService.rawOptions.drawBoldTextInBrightColors && cell.isBold() && fg < 8) {
fg += 8;
}
this._ctx.fillStyle = this._colors.ansi[fg].css;
}
}
switch (cell.extended.underlineStyle) {
case UnderlineStyle.DOUBLE:
this._fillBottomLineAtCells(x, y, cell.getWidth(), -this._coreBrowserService.dpr);
this._fillBottomLineAtCells(x, y, cell.getWidth(), this._coreBrowserService.dpr);
break;
case UnderlineStyle.CURLY:
this._curlyUnderlineAtCell(x, y, cell.getWidth());
break;
case UnderlineStyle.DOTTED:
this._dottedUnderlineAtCell(x, y, cell.getWidth());
break;
case UnderlineStyle.DASHED:
this._dashedUnderlineAtCell(x, y, cell.getWidth());
break;
case UnderlineStyle.SINGLE:
default:
this._fillBottomLineAtCells(x, y, cell.getWidth());
break;
}
}
this._ctx.restore();
}
});
}
public onGridChanged(firstRow: number, lastRow: number): void {
// Resize has not been called yet
if (this._state.cache.length === 0) {
return;
}
if (this._charAtlas) {
this._charAtlas.beginFrame();
}
this._clearCells(0, firstRow, this._bufferService.cols, lastRow - firstRow + 1);
this._drawBackground(firstRow, lastRow);
this._drawForeground(firstRow, lastRow);
}
public onOptionsChanged(): void {
this._setTransparency(this._optionsService.rawOptions.allowTransparency);
}
/**
* Whether a character is overlapping to the next cell.
*/
private _isOverlapping(cell: ICellData): boolean {
// Only single cell characters can be overlapping, rendering issues can
// occur without this check
if (cell.getWidth() !== 1) {
return false;
}
// We assume that any ascii character will not overlap
if (cell.getCode() < 256) {
return false;
}
const chars = cell.getChars();
// Deliver from cache if available
if (this._characterOverlapCache.hasOwnProperty(chars)) {
return this._characterOverlapCache[chars];
}
// Setup the font
this._ctx.save();
this._ctx.font = this._characterFont;
// Measure the width of the character, but Math.floor it
// because that is what the renderer does when it calculates
// the character dimensions we are comparing against
const overlaps = Math.floor(this._ctx.measureText(chars).width) > this._characterWidth;
// Restore the original context
this._ctx.restore();
// Cache and return
this._characterOverlapCache[chars] = overlaps;
return overlaps;
}
/**
* Clear the charcater at the cell specified.
* @param x The column of the char.
* @param y The row of the char.
*/
// private _clearChar(x: number, y: number): void {
// let colsToClear = 1;
// // Clear the adjacent character if it was wide
// const state = this._state.cache[x][y];
// if (state && state[CHAR_DATA_WIDTH_INDEX] === 2) {
// colsToClear = 2;
// }
// this.clearCells(x, y, colsToClear, 1);
// }
}
-112
View File
@@ -1,112 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { IDisposable } from 'common/Types';
import { IColorSet } from 'browser/Types';
import { IEvent } from 'common/EventEmitter';
// TODO: Use core interfaces
export interface IRenderDimensions {
scaledCharWidth: number;
scaledCharHeight: number;
scaledCellWidth: number;
scaledCellHeight: number;
scaledCharLeft: number;
scaledCharTop: number;
scaledCanvasWidth: number;
scaledCanvasHeight: number;
canvasWidth: number;
canvasHeight: number;
actualCellWidth: number;
actualCellHeight: number;
}
export interface IRequestRedrawEvent {
start: number;
end: number;
}
/**
* Note that IRenderer implementations should emit the refresh event after
* rendering rows to the screen.
*/
export interface IRenderer extends IDisposable {
readonly dimensions: IRenderDimensions;
/**
* Fires when the renderer is requesting to be redrawn on the next animation
* frame but is _not_ a result of content changing (eg. selection changes).
*/
readonly onRequestRedraw: IEvent<IRequestRedrawEvent>;
dispose(): void;
setColors(colors: IColorSet): void;
onDevicePixelRatioChange(): void;
onResize(cols: number, rows: number): void;
onCharSizeChanged(): void;
onBlur(): void;
onFocus(): void;
onSelectionChanged(start: [number, number] | undefined, end: [number, number] | undefined, columnSelectMode: boolean): void;
onCursorMove(): void;
onOptionsChanged(): void;
clear(): void;
renderRows(start: number, end: number): void;
clearTextureAtlas?(): void;
}
export interface IRenderLayer extends IDisposable {
readonly canvas: HTMLCanvasElement;
/**
* Called when the terminal loses focus.
*/
onBlur(): void;
/**
* * Called when the terminal gets focus.
*/
onFocus(): void;
/**
* Called when the cursor is moved.
*/
onCursorMove(): void;
/**
* Called when options change.
*/
onOptionsChanged(): void;
/**
* Called when the theme changes.
*/
setColors(colorSet: IColorSet): void;
/**
* Called when the data in the grid has changed (or needs to be rendered
* again).
*/
onGridChanged(startRow: number, endRow: number): void;
/**
* Calls when the selection changes.
*/
onSelectionChanged(start: [number, number] | undefined, end: [number, number] | undefined, columnSelectMode: boolean): void;
/**
* Resize the render layer.
*/
resize(dim: IRenderDimensions): void;
/**
* Clear the state of the render layer.
*/
reset(): void;
/**
* Clears the texture atlas.
*/
clearTextureAtlas(): void;
}
@@ -1,58 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { IGlyphIdentifier } from './Types';
import { IDisposable } from 'common/Types';
export abstract class BaseCharAtlas implements IDisposable {
private _didWarmUp: boolean = false;
public dispose(): void { }
/**
* Perform any work needed to warm the cache before it can be used. May be called multiple times.
* Implement _doWarmUp instead if you only want to get called once.
*/
public warmUp(): void {
if (!this._didWarmUp) {
this._doWarmUp();
this._didWarmUp = true;
}
}
/**
* Perform any work needed to warm the cache before it can be used. Used by the default
* implementation of warmUp(), and will only be called once.
*/
private _doWarmUp(): void { }
public clear(): void { }
/**
* Called when we start drawing a new frame.
*
* TODO: We rely on this getting called by TextRenderLayer. This should really be called by
* Renderer instead, but we need to make Renderer the source-of-truth for the char atlas, instead
* of BaseRenderLayer.
*/
public beginFrame(): void { }
/**
* May be called before warmUp finishes, however it is okay for the implementation to
* do nothing and return false in that case.
*
* @param ctx Where to draw the character onto.
* @param glyph Information about what to draw
* @param x The position on the context to start drawing at
* @param y The position on the context to start drawing at
* @returns The success state. True if we drew the character.
*/
public abstract draw(
ctx: CanvasRenderingContext2D,
glyph: IGlyphIdentifier,
x: number,
y: number
): boolean;
}
@@ -1,96 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { generateConfig, configEquals } from './CharAtlasUtils';
import { BaseCharAtlas } from './BaseCharAtlas';
import { DynamicCharAtlas } from './DynamicCharAtlas';
import { ICharAtlasConfig } from './Types';
import { IColorSet } from 'browser/Types';
import { ITerminalOptions } from 'xterm';
interface ICharAtlasCacheEntry {
atlas: BaseCharAtlas;
config: ICharAtlasConfig;
// N.B. This implementation potentially holds onto copies of the terminal forever, so
// this may cause memory leaks.
ownedBy: number[];
}
const charAtlasCache: ICharAtlasCacheEntry[] = [];
/**
* Acquires a char atlas, either generating a new one or returning an existing
* one that is in use by another terminal.
*/
export function acquireCharAtlas(
options: Required<ITerminalOptions>,
rendererId: number,
colors: IColorSet,
scaledCharWidth: number,
scaledCharHeight: number,
devicePixelRatio: number
): BaseCharAtlas {
const newConfig = generateConfig(scaledCharWidth, scaledCharHeight, options, colors, devicePixelRatio);
// Check to see if the renderer already owns this config
for (let i = 0; i < charAtlasCache.length; i++) {
const entry = charAtlasCache[i];
const ownedByIndex = entry.ownedBy.indexOf(rendererId);
if (ownedByIndex >= 0) {
if (configEquals(entry.config, newConfig)) {
return entry.atlas;
}
// The configs differ, release the renderer from the entry
if (entry.ownedBy.length === 1) {
entry.atlas.dispose();
charAtlasCache.splice(i, 1);
} else {
entry.ownedBy.splice(ownedByIndex, 1);
}
break;
}
}
// Try match a char atlas from the cache
for (let i = 0; i < charAtlasCache.length; i++) {
const entry = charAtlasCache[i];
if (configEquals(entry.config, newConfig)) {
// Add the renderer to the cache entry and return
entry.ownedBy.push(rendererId);
return entry.atlas;
}
}
const newEntry: ICharAtlasCacheEntry = {
atlas: new DynamicCharAtlas(
document,
newConfig
),
config: newConfig,
ownedBy: [rendererId]
};
charAtlasCache.push(newEntry);
return newEntry.atlas;
}
/**
* Removes a terminal reference from the cache, allowing its memory to be freed.
*/
export function removeTerminalFromCache(rendererId: number): void {
for (let i = 0; i < charAtlasCache.length; i++) {
const index = charAtlasCache[i].ownedBy.indexOf(rendererId);
if (index !== -1) {
if (charAtlasCache[i].ownedBy.length === 1) {
// Remove the cache entry if it's the only renderer
charAtlasCache[i].atlas.dispose();
charAtlasCache.splice(i, 1);
} else {
// Remove the reference from the cache entry
charAtlasCache[i].ownedBy.splice(index, 1);
}
break;
}
}
}
@@ -1,54 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { ICharAtlasConfig } from './Types';
import { DEFAULT_COLOR } from 'common/buffer/Constants';
import { IColorSet, IPartialColorSet } from 'browser/Types';
import { ITerminalOptions } from 'xterm';
export function generateConfig(scaledCharWidth: number, scaledCharHeight: number, options: Required<ITerminalOptions>, colors: IColorSet, devicePixelRatio: number): ICharAtlasConfig {
// null out some fields that don't matter
const clonedColors: IPartialColorSet = {
foreground: colors.foreground,
background: colors.background,
cursor: undefined,
cursorAccent: undefined,
selectionBackground: undefined,
ansi: colors.ansi.slice()
};
return {
devicePixelRatio,
scaledCharWidth,
scaledCharHeight,
fontFamily: options.fontFamily,
fontSize: options.fontSize,
fontWeight: options.fontWeight,
fontWeightBold: options.fontWeightBold,
allowTransparency: options.allowTransparency,
colors: clonedColors
};
}
export function configEquals(a: ICharAtlasConfig, b: ICharAtlasConfig): boolean {
for (let i = 0; i < a.colors.ansi.length; i++) {
if (a.colors.ansi[i].rgba !== b.colors.ansi[i].rgba) {
return false;
}
}
return a.devicePixelRatio === b.devicePixelRatio &&
a.fontFamily === b.fontFamily &&
a.fontSize === b.fontSize &&
a.fontWeight === b.fontWeight &&
a.fontWeightBold === b.fontWeightBold &&
a.allowTransparency === b.allowTransparency &&
a.scaledCharWidth === b.scaledCharWidth &&
a.scaledCharHeight === b.scaledCharHeight &&
a.colors.foreground === b.colors.foreground &&
a.colors.background === b.colors.background;
}
export function is256Color(colorCode: number): boolean {
return colorCode < DEFAULT_COLOR;
}
@@ -1,411 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { DIM_OPACITY, INVERTED_DEFAULT_COLOR, TEXT_BASELINE } from 'browser/renderer/Constants';
import { IGlyphIdentifier, ICharAtlasConfig } from './Types';
import { BaseCharAtlas } from './BaseCharAtlas';
import { DEFAULT_ANSI_COLORS } from 'browser/ColorManager';
import { LRUMap } from './LRUMap';
import { isFirefox, isSafari } from 'common/Platform';
import { IColor } from 'common/Types';
import { throwIfFalsy } from 'browser/renderer/RendererUtils';
import { color } from 'common/Color';
// In practice we're probably never going to exhaust a texture this large. For debugging purposes,
// however, it can be useful to set this to a really tiny value, to verify that LRU eviction works.
const TEXTURE_WIDTH = 1024;
const TEXTURE_HEIGHT = 1024;
const TRANSPARENT_COLOR = {
css: 'rgba(0, 0, 0, 0)',
rgba: 0
};
// Drawing to the cache is expensive: If we have to draw more than this number of glyphs to the
// cache in a single frame, give up on trying to cache anything else, and try to finish the current
// frame ASAP.
//
// This helps to limit the amount of damage a program can do when it would otherwise thrash the
// cache.
const FRAME_CACHE_DRAW_LIMIT = 100;
/**
* The number of milliseconds to wait before generating the ImageBitmap, this is to debounce/batch
* the operation as window.createImageBitmap is asynchronous.
*/
const GLYPH_BITMAP_COMMIT_DELAY = 100;
interface IGlyphCacheValue {
index: number;
isEmpty: boolean;
inBitmap: boolean;
}
export function getGlyphCacheKey(glyph: IGlyphIdentifier): number {
// Note that this only returns a valid key when code < 256
// Layout:
// 0b00000000000000000000000000000001: italic (1)
// 0b00000000000000000000000000000010: dim (1)
// 0b00000000000000000000000000000100: bold (1)
// 0b00000000000000000000111111111000: fg (9)
// 0b00000000000111111111000000000000: bg (9)
// 0b00011111111000000000000000000000: code (8)
// 0b11100000000000000000000000000000: unused (3)
return glyph.code << 21 | glyph.bg << 12 | glyph.fg << 3 | (glyph.bold ? 0 : 4) + (glyph.dim ? 0 : 2) + (glyph.italic ? 0 : 1);
}
export class DynamicCharAtlas extends BaseCharAtlas {
// An ordered map that we're using to keep track of where each glyph is in the atlas texture.
// It's ordered so that we can determine when to remove the old entries.
private _cacheMap: LRUMap<IGlyphCacheValue>;
// The texture that the atlas is drawn to
private _cacheCanvas: HTMLCanvasElement;
private _cacheCtx: CanvasRenderingContext2D;
// A temporary context that glyphs are drawn to before being transfered to the atlas.
private _tmpCtx: CanvasRenderingContext2D;
// The number of characters stored in the atlas by width/height
private _width: number;
private _height: number;
private _drawToCacheCount: number = 0;
// An array of glyph keys that are waiting on the bitmap to be generated.
private _glyphsWaitingOnBitmap: IGlyphCacheValue[] = [];
// The timeout that is used to batch bitmap generation so it's not requested for every new glyph.
private _bitmapCommitTimeout: number | null = null;
// The bitmap to draw from, this is much faster on other browsers than others.
private _bitmap: ImageBitmap | null = null;
constructor(document: Document, private _config: ICharAtlasConfig) {
super();
this._cacheCanvas = document.createElement('canvas');
this._cacheCanvas.width = TEXTURE_WIDTH;
this._cacheCanvas.height = TEXTURE_HEIGHT;
// The canvas needs alpha because we use clearColor to convert the background color to alpha.
// It might also contain some characters with transparent backgrounds if allowTransparency is
// set.
this._cacheCtx = throwIfFalsy(this._cacheCanvas.getContext('2d', { alpha: true }));
const tmpCanvas = document.createElement('canvas');
tmpCanvas.width = this._config.scaledCharWidth;
tmpCanvas.height = this._config.scaledCharHeight;
this._tmpCtx = throwIfFalsy(tmpCanvas.getContext('2d', { alpha: this._config.allowTransparency }));
this._width = Math.floor(TEXTURE_WIDTH / this._config.scaledCharWidth);
this._height = Math.floor(TEXTURE_HEIGHT / this._config.scaledCharHeight);
const capacity = this._width * this._height;
this._cacheMap = new LRUMap(capacity);
this._cacheMap.prealloc(capacity);
// This is useful for debugging
// document.body.appendChild(this._cacheCanvas);
}
public dispose(): void {
if (this._bitmapCommitTimeout !== null) {
window.clearTimeout(this._bitmapCommitTimeout);
this._bitmapCommitTimeout = null;
}
}
public beginFrame(): void {
this._drawToCacheCount = 0;
}
public clear(): void {
if (this._cacheMap.size > 0) {
const capacity = this._width * this._height;
this._cacheMap = new LRUMap(capacity);
this._cacheMap.prealloc(capacity);
}
this._cacheCtx.clearRect(0, 0, TEXTURE_WIDTH, TEXTURE_HEIGHT);
this._tmpCtx.clearRect(0, 0, this._config.scaledCharWidth, this._config.scaledCharHeight);
}
public draw(
ctx: CanvasRenderingContext2D,
glyph: IGlyphIdentifier,
x: number,
y: number
): boolean {
// Space is always an empty cell, special case this as it's so common
if (glyph.code === 32) {
return true;
}
// Exit early for uncachable glyphs
if (!this._canCache(glyph)) {
return false;
}
const glyphKey = getGlyphCacheKey(glyph);
const cacheValue = this._cacheMap.get(glyphKey);
if (cacheValue !== null && cacheValue !== undefined) {
this._drawFromCache(ctx, cacheValue, x, y);
return true;
}
if (this._drawToCacheCount < FRAME_CACHE_DRAW_LIMIT) {
let index;
if (this._cacheMap.size < this._cacheMap.capacity) {
index = this._cacheMap.size;
} else {
// we're out of space, so our call to set will delete this item
index = this._cacheMap.peek()!.index;
}
const cacheValue = this._drawToCache(glyph, index);
this._cacheMap.set(glyphKey, cacheValue);
this._drawFromCache(ctx, cacheValue, x, y);
return true;
}
return false;
}
private _canCache(glyph: IGlyphIdentifier): boolean {
// Only cache ascii and extended characters for now, to be safe. In the future, we could do
// something more complicated to determine the expected width of a character.
//
// If we switch the renderer over to webgl at some point, we may be able to use blending modes
// to draw overlapping glyphs from the atlas:
// https://github.com/servo/webrender/issues/464#issuecomment-255632875
// https://webglfundamentals.org/webgl/lessons/webgl-text-texture.html
return glyph.code < 256;
}
private _toCoordinateX(index: number): number {
return (index % this._width) * this._config.scaledCharWidth;
}
private _toCoordinateY(index: number): number {
return Math.floor(index / this._width) * this._config.scaledCharHeight;
}
private _drawFromCache(
ctx: CanvasRenderingContext2D,
cacheValue: IGlyphCacheValue,
x: number,
y: number
): void {
// We don't actually need to do anything if this is whitespace.
if (cacheValue.isEmpty) {
return;
}
const cacheX = this._toCoordinateX(cacheValue.index);
const cacheY = this._toCoordinateY(cacheValue.index);
ctx.drawImage(
cacheValue.inBitmap ? this._bitmap! : this._cacheCanvas,
cacheX,
cacheY,
this._config.scaledCharWidth,
this._config.scaledCharHeight,
x,
y,
this._config.scaledCharWidth,
this._config.scaledCharHeight
);
}
private _getColorFromAnsiIndex(idx: number): IColor {
if (idx < this._config.colors.ansi.length) {
return this._config.colors.ansi[idx];
}
return DEFAULT_ANSI_COLORS[idx];
}
private _getBackgroundColor(glyph: IGlyphIdentifier): IColor {
if (this._config.allowTransparency) {
// The background color might have some transparency, so we need to render it as fully
// transparent in the atlas. Otherwise we'd end up drawing the transparent background twice
// around the anti-aliased edges of the glyph, and it would look too dark.
return TRANSPARENT_COLOR;
}
let result: IColor;
if (glyph.bg === INVERTED_DEFAULT_COLOR) {
result = this._config.colors.foreground;
} else if (glyph.bg < 256) {
result = this._getColorFromAnsiIndex(glyph.bg);
} else {
result = this._config.colors.background;
}
if (glyph.dim) {
result = color.blend(this._config.colors.background, color.multiplyOpacity(result, 0.5));
}
return result;
}
private _getForegroundColor(glyph: IGlyphIdentifier): IColor {
if (glyph.fg === INVERTED_DEFAULT_COLOR) {
return color.opaque(this._config.colors.background);
}
if (glyph.fg < 256) {
// 256 color support
return this._getColorFromAnsiIndex(glyph.fg);
}
return this._config.colors.foreground;
}
// TODO: We do this (or something similar) in multiple places. We should split this off
// into a shared function.
private _drawToCache(glyph: IGlyphIdentifier, index: number): IGlyphCacheValue {
this._drawToCacheCount++;
this._tmpCtx.save();
// draw the background
const backgroundColor = this._getBackgroundColor(glyph);
// Use a 'copy' composite operation to clear any existing glyph out of _tmpCtxWithAlpha, regardless of
// transparency in backgroundColor
this._tmpCtx.globalCompositeOperation = 'copy';
this._tmpCtx.fillStyle = backgroundColor.css;
this._tmpCtx.fillRect(0, 0, this._config.scaledCharWidth, this._config.scaledCharHeight);
this._tmpCtx.globalCompositeOperation = 'source-over';
// draw the foreground/glyph
const fontWeight = glyph.bold ? this._config.fontWeightBold : this._config.fontWeight;
const fontStyle = glyph.italic ? 'italic' : '';
this._tmpCtx.font =
`${fontStyle} ${fontWeight} ${this._config.fontSize * this._config.devicePixelRatio}px ${this._config.fontFamily}`;
this._tmpCtx.textBaseline = TEXT_BASELINE;
this._tmpCtx.fillStyle = this._getForegroundColor(glyph).css;
// Apply alpha to dim the character
if (glyph.dim) {
this._tmpCtx.globalAlpha = DIM_OPACITY;
}
// Draw the character
this._tmpCtx.fillText(glyph.chars, 0, this._config.scaledCharHeight);
// clear the background from the character to avoid issues with drawing over the previous
// character if it extends past it's bounds
let imageData = this._tmpCtx.getImageData(
0, 0, this._config.scaledCharWidth, this._config.scaledCharHeight
);
let isEmpty = false;
if (!this._config.allowTransparency) {
isEmpty = clearColor(imageData, backgroundColor);
}
// If this charcater is underscore and empty, shift it up until it is visible, try for a maximum
// of 5 pixels.
if (isEmpty && glyph.chars === '_' && !this._config.allowTransparency) {
for (let offset = 1; offset <= 5; offset++) {
// Draw the character
this._tmpCtx.fillText(glyph.chars, 0, this._config.scaledCharHeight - offset);
// clear the background from the character to avoid issues with drawing over the previous
// character if it extends past it's bounds
imageData = this._tmpCtx.getImageData(
0, 0, this._config.scaledCharWidth, this._config.scaledCharHeight
);
isEmpty = clearColor(imageData, backgroundColor);
if (!isEmpty) {
break;
}
}
}
this._tmpCtx.restore();
// copy the data from imageData to _cacheCanvas
const x = this._toCoordinateX(index);
const y = this._toCoordinateY(index);
// putImageData doesn't do any blending, so it will overwrite any existing cache entry for us
this._cacheCtx.putImageData(imageData, x, y);
// Add the glyph and queue it to the bitmap (if the browser supports it)
const cacheValue = {
index,
isEmpty,
inBitmap: false
};
this._addGlyphToBitmap(cacheValue);
return cacheValue;
}
private _addGlyphToBitmap(cacheValue: IGlyphCacheValue): void {
// Support is patchy for createImageBitmap at the moment, pass a canvas back
// if support is lacking as drawImage works there too. Firefox is also
// included here as ImageBitmap appears both buggy and has horrible
// performance (tested on v55).
if (!('createImageBitmap' in window) || isFirefox || isSafari) {
return;
}
// Add the glyph to the queue
this._glyphsWaitingOnBitmap.push(cacheValue);
// Check if bitmap generation timeout already exists
if (this._bitmapCommitTimeout !== null) {
return;
}
this._bitmapCommitTimeout = window.setTimeout(() => this._generateBitmap(), GLYPH_BITMAP_COMMIT_DELAY);
}
private _generateBitmap(): void {
const glyphsMovingToBitmap = this._glyphsWaitingOnBitmap;
this._glyphsWaitingOnBitmap = [];
window.createImageBitmap(this._cacheCanvas).then(bitmap => {
// Set bitmap
this._bitmap = bitmap;
// Mark all new glyphs as in bitmap, excluding glyphs that came in after
// the bitmap was requested
for (let i = 0; i < glyphsMovingToBitmap.length; i++) {
const value = glyphsMovingToBitmap[i];
// It doesn't matter if the value was already evicted, it will be
// released from memory after this block if so.
value.inBitmap = true;
}
});
this._bitmapCommitTimeout = null;
}
}
// This is used for debugging the renderer, just swap out `new DynamicCharAtlas` with
// `new NoneCharAtlas`.
export class NoneCharAtlas extends BaseCharAtlas {
constructor(document: Document, config: ICharAtlasConfig) {
super();
}
public draw(
ctx: CanvasRenderingContext2D,
glyph: IGlyphIdentifier,
x: number,
y: number
): boolean {
return false;
}
}
/**
* Makes a particular rgb color and colors that are nearly the same in an ImageData completely
* transparent.
* @returns True if the result is "empty", meaning all pixels are fully transparent.
*/
function clearColor(imageData: ImageData, color: IColor): boolean {
let isEmpty = true;
const r = color.rgba >>> 24;
const g = color.rgba >>> 16 & 0xFF;
const b = color.rgba >>> 8 & 0xFF;
for (let offset = 0; offset < imageData.data.length; offset += 4) {
if (Math.abs(imageData.data[offset] - r) +
Math.abs(imageData.data[offset + 1] - g) +
Math.abs(imageData.data[offset + 2] - b) < 35) {
imageData.data[offset + 3] = 0;
} else {
isEmpty = false;
}
}
return isEmpty;
}
@@ -1,65 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { assert } from 'chai';
import { LRUMap } from './LRUMap';
describe('LRUMap', () => {
it('can be used to store and retrieve values', () => {
const map = new LRUMap(10);
map.set(1, 'valuea');
map.set(2, 'valueb');
map.set(3, 'valuec');
assert.strictEqual(map.get(1), 'valuea');
assert.strictEqual(map.get(2), 'valueb');
assert.strictEqual(map.get(3), 'valuec');
});
it('maintains a size from insertions', () => {
const map = new LRUMap(10);
assert.strictEqual(map.size, 0);
map.set(1, 'value');
assert.strictEqual(map.size, 1);
map.set(2, 'value');
assert.strictEqual(map.size, 2);
});
it('deletes the oldest entry when the capacity is exceeded', () => {
const map = new LRUMap(4);
map.set(1, 'value');
map.set(2, 'value');
map.set(3, 'value');
map.set(4, 'value');
map.set(5, 'value');
assert.isNull(map.get(1));
assert.isNotNull(map.get(2));
assert.isNotNull(map.get(3));
assert.isNotNull(map.get(4));
assert.isNotNull(map.get(5));
assert.strictEqual(map.size, 4);
});
it('prevents a recently accessed entry from getting deleted', () => {
const map = new LRUMap(2);
map.set(1, 'value');
map.set(2, 'value');
map.get(1);
// a would normally get deleted here, except that we called get()
map.set(3, 'value');
assert.isNotNull(map.get(1));
// b got deleted instead of a
assert.isNull(map.get(2));
assert.isNotNull(map.get(3));
});
it('supports mutation', () => {
const map = new LRUMap(10);
map.set(1, 'oldvalue');
map.set(1, 'newvalue');
// mutation doesn't change the size
assert.strictEqual(map.size, 1);
assert.strictEqual(map.get(1), 'newvalue');
});
});
@@ -1,136 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
interface ILinkedListNode<T> {
prev: ILinkedListNode<T> | null;
next: ILinkedListNode<T> | null;
key: number | null;
value: T | null;
}
export class LRUMap<T> {
private _map: { [key: number]: ILinkedListNode<T> } = {};
private _head: ILinkedListNode<T> | null = null;
private _tail: ILinkedListNode<T> | null = null;
private _nodePool: ILinkedListNode<T>[] = [];
public size: number = 0;
constructor(public capacity: number) { }
private _unlinkNode(node: ILinkedListNode<T>): void {
const prev = node.prev;
const next = node.next;
if (node === this._head) {
this._head = next;
}
if (node === this._tail) {
this._tail = prev;
}
if (prev !== null) {
prev.next = next;
}
if (next !== null) {
next.prev = prev;
}
}
private _appendNode(node: ILinkedListNode<T>): void {
const tail = this._tail;
if (tail !== null) {
tail.next = node;
}
node.prev = tail;
node.next = null;
this._tail = node;
if (this._head === null) {
this._head = node;
}
}
/**
* Preallocate a bunch of linked-list nodes. Allocating these nodes ahead of time means that
* they're more likely to live next to each other in memory, which seems to improve performance.
*
* Each empty object only consumes about 60 bytes of memory, so this is pretty cheap, even for
* large maps.
*/
public prealloc(count: number): void {
const nodePool = this._nodePool;
for (let i = 0; i < count; i++) {
nodePool.push({
prev: null,
next: null,
key: null,
value: null
});
}
}
public get(key: number): T | null {
// This is unsafe: We're assuming our keyspace doesn't overlap with Object.prototype. However,
// it's faster than calling hasOwnProperty, and in our case, it would never overlap.
const node = this._map[key];
if (node !== undefined) {
this._unlinkNode(node);
this._appendNode(node);
return node.value;
}
return null;
}
/**
* Gets a value from a key without marking it as the most recently used item.
*/
public peekValue(key: number): T | null {
const node = this._map[key];
if (node !== undefined) {
return node.value;
}
return null;
}
public peek(): T | null {
const head = this._head;
return head === null ? null : head.value;
}
public set(key: number, value: T): void {
// This is unsafe: See note above.
let node = this._map[key];
if (node !== undefined) {
// already exists, we just need to mutate it and move it to the end of the list
node = this._map[key];
this._unlinkNode(node);
node.value = value;
} else if (this.size >= this.capacity) {
// we're out of space: recycle the head node, move it to the tail
node = this._head!;
this._unlinkNode(node);
delete this._map[node.key!];
node.key = key;
node.value = value;
this._map[key] = node;
} else {
// make a new element
const nodePool = this._nodePool;
if (nodePool.length > 0) {
// use a preallocated node if we can
node = nodePool.pop()!;
node.key = key;
node.value = value;
} else {
node = {
prev: null,
next: null,
key,
value
};
}
this._map[key] = node;
this.size++;
}
this._appendNode(node);
}
}
-29
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@@ -1,29 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { FontWeight } from 'common/services/Services';
import { IPartialColorSet } from 'browser/Types';
export interface IGlyphIdentifier {
chars: string;
code: number;
bg: number;
fg: number;
bold: boolean;
dim: boolean;
italic: boolean;
}
export interface ICharAtlasConfig {
devicePixelRatio: number;
fontSize: number;
fontFamily: string;
fontWeight: FontWeight;
fontWeightBold: FontWeight;
scaledCharWidth: number;
scaledCharHeight: number;
allowTransparency: boolean;
colors: IPartialColorSet;
}
@@ -1,40 +0,0 @@
{
"compilerOptions": {
"module": "commonjs",
"target": "es2015",
"lib": [
"dom",
"es6"
],
"rootDir": ".",
"outDir": "../out",
"sourceMap": true,
"removeComments": true,
"baseUrl": ".",
"paths": {
"common/*": [
"../../../src/common/*"
],
"browser/*": [
"../../../src/browser/*"
]
},
"strict": true,
"downlevelIteration": true,
"types": [
"../../../node_modules/@types/mocha"
]
},
"include": [
"./**/*",
"../../../typings/xterm.d.ts"
],
"references": [
{
"path": "../../../src/common"
},
{
"path": "../../../src/browser"
}
]
}
-7
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@@ -1,7 +0,0 @@
{
"files": [],
"include": [],
"references": [
{ "path": "./src" }
]
}
@@ -1,33 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { Terminal, ITerminalAddon, IEvent } from 'xterm';
declare module 'xterm-addon-canvas' {
/**
* An xterm.js addon that provides search functionality.
*/
export class CanvasAddon implements ITerminalAddon {
public textureAtlas?: HTMLCanvasElement;
constructor();
/**
* Activates the addon.
* @param terminal The terminal the addon is being loaded in.
*/
public activate(terminal: Terminal): void;
/**
* Disposes the addon.
*/
public dispose(): void;
/**
* Clears the terminal's texture atlas and triggers a redraw.
*/
public clearTextureAtlas(): void;
}
}
@@ -1,39 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
const path = require('path');
const addonName = 'CanvasAddon';
const mainFile = 'xterm-addon-canvas.js';
module.exports = {
entry: `./out/${addonName}.js`,
devtool: 'source-map',
module: {
rules: [
{
test: /\.js$/,
use: ["source-map-loader"],
enforce: "pre",
exclude: /node_modules/
}
]
},
resolve: {
modules: ['./node_modules'],
extensions: [ '.js' ],
alias: {
common: path.resolve('../../out/common'),
browser: path.resolve('../../out/browser')
}
},
output: {
filename: mainFile,
path: path.resolve('./lib'),
library: addonName,
libraryTarget: 'umd'
},
mode: 'production'
};
-2
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@@ -1,2 +0,0 @@
lib
node_modules
-29
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@@ -1,29 +0,0 @@
# Blacklist - exclude everything except npm defaults such as LICENSE, etc
*
!*/
# Whitelist - lib/
!lib/**/*.d.ts
!lib/**/*.js
!lib/**/*.js.map
!lib/**/*.css
# Whitelist - src/
!src/**/*.ts
!src/**/*.d.ts
!src/**/*.js
!src/**/*.js.map
!src/**/*.css
# Blacklist - src/ test files
src/**/*.test.ts
src/**/*.test.d.ts
src/**/*.test.js
src/**/*.test.js.map
# Whitelist - typings/
!typings/*.d.ts
-19
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@@ -1,19 +0,0 @@
Copyright (c) 2019, The xterm.js authors (https://github.com/xtermjs/xterm.js)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-24
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@@ -1,24 +0,0 @@
## xterm-addon-fit
An addon for [xterm.js](https://github.com/xtermjs/xterm.js) that enables fitting the terminal's dimensions to a containing element. This addon requires xterm.js v4+.
### Install
```bash
npm install --save xterm-addon-fit
```
### Usage
```ts
import { Terminal } from 'xterm';
import { FitAddon } from 'xterm-addon-fit';
const terminal = new Terminal();
const fitAddon = new FitAddon();
terminal.loadAddon(fitAddon);
terminal.open(containerElement);
fitAddon.fit();
```
See the full [API](https://github.com/xtermjs/xterm.js/blob/master/addons/xterm-addon-fit/typings/xterm-addon-fit.d.ts) for more advanced usage.
-26
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@@ -1,26 +0,0 @@
{
"name": "xterm-addon-fit",
"version": "0.6.0",
"author": {
"name": "The xterm.js authors",
"url": "https://xtermjs.org/"
},
"main": "lib/xterm-addon-fit.js",
"types": "typings/xterm-addon-fit.d.ts",
"repository": "https://github.com/xtermjs/xterm.js",
"license": "MIT",
"keywords": [
"terminal",
"xterm",
"xterm.js"
],
"scripts": {
"build": "../../node_modules/.bin/tsc -p .",
"prepackage": "npm run build",
"package": "../../node_modules/.bin/webpack",
"prepublishOnly": "npm run package"
},
"peerDependencies": {
"xterm": "^5.0.0"
}
}
-89
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@@ -1,89 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { Terminal, ITerminalAddon } from 'xterm';
interface ITerminalDimensions {
/**
* The number of rows in the terminal.
*/
rows: number;
/**
* The number of columns in the terminal.
*/
cols: number;
}
const MINIMUM_COLS = 2;
const MINIMUM_ROWS = 1;
export class FitAddon implements ITerminalAddon {
private _terminal: Terminal | undefined;
constructor() {}
public activate(terminal: Terminal): void {
this._terminal = terminal;
}
public dispose(): void {}
public fit(): void {
const dims = this.proposeDimensions();
if (!dims || !this._terminal || isNaN(dims.cols) || isNaN(dims.rows)) {
return;
}
// TODO: Remove reliance on private API
const core = (this._terminal as any)._core;
// Force a full render
if (this._terminal.rows !== dims.rows || this._terminal.cols !== dims.cols) {
core._renderService.clear();
this._terminal.resize(dims.cols, dims.rows);
}
}
public proposeDimensions(): ITerminalDimensions | undefined {
if (!this._terminal) {
return undefined;
}
if (!this._terminal.element || !this._terminal.element.parentElement) {
return undefined;
}
// TODO: Remove reliance on private API
const core = (this._terminal as any)._core;
if (core._renderService.dimensions.actualCellWidth === 0 || core._renderService.dimensions.actualCellHeight === 0) {
return undefined;
}
const scrollbarWidth = this._terminal.options.scrollback === 0 ?
0 : core.viewport.scrollBarWidth;
const parentElementStyle = window.getComputedStyle(this._terminal.element.parentElement);
const parentElementHeight = parseInt(parentElementStyle.getPropertyValue('height'));
const parentElementWidth = Math.max(0, parseInt(parentElementStyle.getPropertyValue('width')));
const elementStyle = window.getComputedStyle(this._terminal.element);
const elementPadding = {
top: parseInt(elementStyle.getPropertyValue('padding-top')),
bottom: parseInt(elementStyle.getPropertyValue('padding-bottom')),
right: parseInt(elementStyle.getPropertyValue('padding-right')),
left: parseInt(elementStyle.getPropertyValue('padding-left'))
};
const elementPaddingVer = elementPadding.top + elementPadding.bottom;
const elementPaddingHor = elementPadding.right + elementPadding.left;
const availableHeight = parentElementHeight - elementPaddingVer;
const availableWidth = parentElementWidth - elementPaddingHor - scrollbarWidth;
const geometry = {
cols: Math.max(MINIMUM_COLS, Math.floor(availableWidth / core._renderService.dimensions.actualCellWidth)),
rows: Math.max(MINIMUM_ROWS, Math.floor(availableHeight / core._renderService.dimensions.actualCellHeight))
};
return geometry;
}
}
-22
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@@ -1,22 +0,0 @@
{
"compilerOptions": {
"module": "commonjs",
"target": "es2015",
"lib": [
"dom",
"es2015"
],
"rootDir": ".",
"outDir": "../out",
"sourceMap": true,
"removeComments": true,
"strict": true,
"types": [
"../../../node_modules/@types/mocha"
]
},
"include": [
"./**/*",
"../../../typings/xterm.d.ts"
]
}
-131
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@@ -1,131 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { assert } from 'chai';
import { openTerminal, launchBrowser } from '../../../out-test/api/TestUtils';
import { Browser, Page } from 'playwright';
const APP = 'http://127.0.0.1:3001/test';
let browser: Browser;
let page: Page;
const width = 1024;
const height = 768;
describe('FitAddon', () => {
before(async function(): Promise<any> {
browser = await launchBrowser();
page = await (await browser.newContext()).newPage();
await page.setViewportSize({ width, height });
await page.goto(APP);
});
beforeEach(async function(): Promise<any> {
await page.evaluate(`document.querySelector('#terminal-container').style.display=''`);
await openTerminal(page);
});
after(async () => {
await browser.close();
});
afterEach(async function(): Promise<any> {
await page.evaluate(`window.term.dispose()`);
});
it('no terminal', async function(): Promise<any> {
await page.evaluate(`window.fit = new FitAddon();`);
assert.equal(await page.evaluate(`window.fit.proposeDimensions()`), undefined);
});
describe('proposeDimensions', () => {
afterEach(async () => {
return await unloadFit();
});
it('default', async function(): Promise<any> {
await loadFit();
const dimensions: {cols: number, rows: number} = await page.evaluate(`window.fit.proposeDimensions()`);
assert.isAbove(dimensions.cols, 85);
assert.isBelow(dimensions.cols, 88);
assert.isAbove(dimensions.rows, 24);
assert.isBelow(dimensions.rows, 29);
});
it('width', async function(): Promise<any> {
await loadFit(1008);
const dimensions: {cols: number, rows: number} = await page.evaluate(`window.fit.proposeDimensions()`);
assert.isAbove(dimensions.cols, 108);
assert.isBelow(dimensions.cols, 111);
assert.isAbove(dimensions.rows, 24);
assert.isBelow(dimensions.rows, 29);
});
it('small', async function(): Promise<any> {
await loadFit(1, 1);
assert.deepEqual(await page.evaluate(`window.fit.proposeDimensions()`), {
cols: 2,
rows: 1
});
});
it('hidden', async function(): Promise<any> {
await page.evaluate(`window.term.dispose()`);
await page.evaluate(`document.querySelector('#terminal-container').style.display='none'`);
await page.evaluate(`window.term = new Terminal()`);
await page.evaluate(`window.term.open(document.querySelector('#terminal-container'))`);
await loadFit();
assert.equal(await page.evaluate(`window.fit.proposeDimensions()`), undefined);
});
});
describe('fit', () => {
afterEach(async () => {
return await unloadFit();
});
it('default', async function(): Promise<any> {
await loadFit();
await page.evaluate(`window.fit.fit()`);
const cols: number = await page.evaluate(`window.term.cols`);
const rows: number = await page.evaluate(`window.term.rows`);
assert.isAbove(cols, 85);
assert.isBelow(cols, 88);
assert.isAbove(rows, 24);
assert.isBelow(rows, 29);
});
it('width', async function(): Promise<any> {
await loadFit(1008);
await page.evaluate(`window.fit.fit()`);
const cols: number = await page.evaluate(`window.term.cols`);
const rows: number = await page.evaluate(`window.term.rows`);
assert.isAbove(cols, 108);
assert.isBelow(cols, 111);
assert.isAbove(rows, 24);
assert.isBelow(rows, 29);
});
it('small', async function(): Promise<any> {
await loadFit(1, 1);
await page.evaluate(`window.fit.fit()`);
assert.equal(await page.evaluate(`window.term.cols`), 2);
assert.equal(await page.evaluate(`window.term.rows`), 1);
});
});
});
async function loadFit(width: number = 800, height: number = 450): Promise<void> {
await page.evaluate(`
window.fit = new FitAddon();
window.term.loadAddon(window.fit);
document.querySelector('#terminal-container').style.width='${width}px';
document.querySelector('#terminal-container').style.height='${height}px';
`);
}
async function unloadFit(): Promise<void> {
await page.evaluate(`window.fit.dispose();`);
}
-23
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@@ -1,23 +0,0 @@
{
"compilerOptions": {
"module": "commonjs",
"target": "es2015",
"lib": [
"es2015"
],
"rootDir": ".",
"outDir": "../out-test",
"sourceMap": true,
"removeComments": true,
"strict": true,
"types": [
"../../../node_modules/@types/mocha",
"../../../node_modules/@types/node",
"../../../out-test/api/TestUtils"
]
},
"include": [
"./**/*",
"../../../typings/xterm.d.ts"
]
}
-8
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@@ -1,8 +0,0 @@
{
"files": [],
"include": [],
"references": [
{ "path": "./src" },
{ "path": "./test" }
]
}
-55
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@@ -1,55 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { Terminal, ITerminalAddon } from 'xterm';
declare module 'xterm-addon-fit' {
/**
* An xterm.js addon that enables resizing the terminal to the dimensions of
* its containing element.
*/
export class FitAddon implements ITerminalAddon {
/**
* Creates a new fit addon.
*/
constructor();
/**
* Activates the addon
* @param terminal The terminal the addon is being loaded in.
*/
public activate(terminal: Terminal): void;
/**
* Disposes the addon.
*/
public dispose(): void;
/**
* Resizes the terminal to the dimensions of its containing element.
*/
public fit(): void;
/**
* Gets the proposed dimensions that will be used for a fit.
*/
public proposeDimensions(): ITerminalDimensions | undefined;
}
/**
* Reprepresents the dimensions of a terminal.
*/
export interface ITerminalDimensions {
/**
* The number of rows in the terminal.
*/
rows: number;
/**
* The number of columns in the terminal.
*/
cols: number;
}
}
-31
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@@ -1,31 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
const path = require('path');
const addonName = 'FitAddon';
const mainFile = 'xterm-addon-fit.js';
module.exports = {
entry: `./out/${addonName}.js`,
devtool: 'source-map',
module: {
rules: [
{
test: /\.js$/,
use: ["source-map-loader"],
enforce: "pre",
exclude: /node_modules/
}
]
},
output: {
filename: mainFile,
path: path.resolve('./lib'),
library: addonName,
libraryTarget: 'umd'
},
mode: 'production'
};
-13
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@@ -1,13 +0,0 @@
node_modules/
.nyc_output/
coverage/
lib/
fonts/
.env
.vscode/
*.swp
*.tgz
npm-debug.log*
yarn-error.log*
-29
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@@ -1,29 +0,0 @@
# Blacklist - exclude everything except npm defaults such as LICENSE, etc
*
!*/
# Whitelist - lib/
!lib/**/*.d.ts
!lib/**/*.js
!lib/**/*.js.map
!lib/**/*.css
# Whitelist - src/
!src/**/*.ts
!src/**/*.d.ts
!src/**/*.js
!src/**/*.js.map
!src/**/*.css
# Blacklist - src/ test files
src/**/*.test.ts
src/**/*.test.d.ts
src/**/*.test.js
src/**/*.test.js.map
# Whitelist - typings/
!typings/*.d.ts
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MIT License
Copyright (c) 2018
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
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## xterm-addon-ligatures
Add support for programming ligatures to [xterm.js] when running in environments with access to [Node.js] APIs (such as [Electron]).
### Requirements
* [Node.js] 8.x or higher (present in [Electron] 1.8.3 or higher)
* [xterm.js] 4.0.0 or higher using the default canvas renderer
### Install
```bash
npm install --save xterm-addon-ligatures
```
### Usage
```ts
import { Terminal } from 'xterm';
import { LigaturesAddon } from 'xterm-addon-ligatures';
const terminal = new Terminal();
const ligaturesAddon = new LigaturesAddon();
terminal.open(containerElement);
terminal.loadAddon(ligaturesAddon);
```
### How It Works
In a browser environment, font ligature information is read directly by the web browser and used to render text correctly without any intervention from the developer. As of version 3, xterm.js uses the canvas to render characters individually, resulting in a significant performance boost. However, this means that it can no longer lean on the browser to determine when to draw font ligatures.
This package locates the font file on disk for the font currently in use by the terminal and parses the ligature information out of it (via the [font-ligatures] package). As text is rendered in xterm.js, this package annotates it with the locations of ligatures, allowing xterm.js to render it correctly.
Since this package depends on being able to find and resolve a system font from disk, it has to have system access that isn't available in the web browser. As a result, this package is mainly useful in environments that combine browser and Node.js runtimes (such as [Electron]).
### Fallback Ligatures
When ligatures cannot be fetched from the environment, a set of "fallback" ligatures is used to get the most common ligatures working. These fallback ligatures can be customized with options passed to `LigatureAddon.constructor`.
### Fonts
This package makes use of the following fonts for testing:
* [Fira Code][Fira Code] - [Licensed under the OFL][Fira Code License] by Nikita Prokopov, Mozilla Foundation with reserved names Fira Code, Fira Mono, and Fira Sans
* [Iosevka] - [Licensed under the OFL][Iosevka License] by Belleve Invis with reserved name Iosevka
[xterm.js]: https://github.com/xtermjs/xterm.js
[Electron]: https://electronjs.org/
[Node.js]: https://nodejs.org/
[font-ligatures]: https://github.com/princjef/font-ligatures
[Fira Code]: https://github.com/tonsky/FiraCode
[Fira Code License]: https://github.com/tonsky/FiraCode/blob/master/LICENSE
[Iosevka]: https://github.com/be5invis/Iosevka
[Iosevka License]: https://github.com/be5invis/Iosevka/blob/master/LICENSE.md
@@ -1,78 +0,0 @@
/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*/
const fs = require('fs');
const path = require('path');
const util = require('util');
const axios = require('axios').default;
const mkdirp = require('mkdirp');
const yauzl = require('yauzl');
const urls = {
fira: 'https://github.com/tonsky/FiraCode/raw/d42e7276fa925e5f82748f3ec9ea429736611b48/distr/otf/FiraCode-Regular.otf',
iosevka: 'https://github.com/be5invis/Iosevka/releases/download/v1.14.3/01-iosevka-1.14.3.zip'
};
const writeFile = util.promisify(fs.writeFile);
const fontsFolder = path.join(__dirname, '../fonts');
async function download() {
await mkdirp(fontsFolder);
try {
await downloadFiraCode();
await downloadIosevka();
console.log('Loaded all fonts for testing')
} catch (e) {
console.warn('Fonts failed to download, ligature tests will not work', e);
}
}
async function downloadFiraCode() {
const file = path.join(fontsFolder, 'firaCode.otf');
if (await util.promisify(fs.exists)(file)) {
console.log('Fira Code already loaded');
} else {
console.log('Downloading Fira Code...');
await writeFile(
file,
(await axios.get(urls.fira, { responseType: 'arraybuffer' })).data
);
}
}
async function downloadIosevka() {
const file = path.join(fontsFolder, 'iosevka.ttf');
if (await util.promisify(fs.exists)(file)) {
console.log('Iosevka already loaded');
} else {
console.log('Downloading Iosevka...');
const iosevkaContents = (await axios.get(urls.iosevka, { responseType: 'arraybuffer' })).data;
const iosevkaZipfile = await util.promisify(yauzl.fromBuffer)(iosevkaContents);
await new Promise((resolve, reject) => {
iosevkaZipfile.on('entry', entry => {
if (entry.fileName === 'ttf/iosevka-regular.ttf') {
iosevkaZipfile.openReadStream(entry, (err, stream) => {
if (err) {
return reject(err);
}
const writeStream = fs.createWriteStream(file);
stream.pipe(writeStream);
writeStream.on('close', () => resolve());
});
}
});
});
}
}
download();
process.on('unhandledRejection', e => {
console.error(e);
process.exit(1);
});
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{
"name": "xterm-addon-ligatures",
"version": "0.6.0",
"description": "Add support for programming ligatures to xterm.js",
"author": {
"name": "The xterm.js authors",
"url": "https://xtermjs.org/"
},
"main": "lib/xterm-addon-ligatures.js",
"types": "typings/xterm-addon-ligatures.d.ts",
"repository": "https://github.com/xtermjs/xterm.js",
"engines": {
"node": ">8.0.0"
},
"scripts": {
"prepare": "node bin/download-fonts.js",
"build": "tsc -p src",
"watch": "tsc -w -p src",
"prepackage": "npm run build",
"package": "webpack",
"pretest": "npm run build",
"test": "nyc mocha out/**/*.test.js",
"prepublish": "npm run package"
},
"keywords": [
"font",
"ligature",
"terminal",
"xterm",
"xterm.js"
],
"license": "MIT",
"dependencies": {
"font-finder": "^1.1.0",
"font-ligatures": "^1.4.1"
},
"devDependencies": {
"@types/sinon": "^5.0.1",
"axios": "^0.21.2",
"mkdirp": "0.5.5",
"sinon": "6.3.5",
"yauzl": "^2.10.0"
},
"peerDependencies": {
"xterm": "^5.0.0"
}
}
@@ -1,43 +0,0 @@
/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { Terminal } from 'xterm';
import { enableLigatures } from '.';
import { ILigatureOptions } from './Types';
export interface ITerminalAddon {
activate(terminal: Terminal): void;
dispose(): void;
}
export class LigaturesAddon implements ITerminalAddon {
private readonly _fallbackLigatures: string[];
private _terminal: Terminal | undefined;
private _characterJoinerId: number | undefined;
constructor(options?: Partial<ILigatureOptions>) {
this._fallbackLigatures = (options?.fallbackLigatures || [
'<--', '<---', '<<-', '<-', '->', '->>', '-->', '--->',
'<==', '<===', '<<=', '<=', '=>', '=>>', '==>', '===>', '>=', '>>=',
'<->', '<-->', '<--->', '<---->', '<=>', '<==>', '<===>', '<====>', '-------->',
'<~~', '<~', '~>', '~~>', '::', ':::', '==', '!=', '===', '!==',
':=', ':-', ':+', '<*', '<*>', '*>', '<|', '<|>', '|>', '+:', '-:', '=:', ':>',
'++', '+++', '<!--', '<!---', '<***>'
]).sort((a, b) => b.length - a.length);
}
public activate(terminal: Terminal): void {
this._terminal = terminal;
this._characterJoinerId = enableLigatures(terminal, this._fallbackLigatures);
}
public dispose(): void {
if (this._characterJoinerId !== undefined) {
this._terminal?.deregisterCharacterJoiner(this._characterJoinerId);
this._characterJoinerId = undefined;
}
}
}
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/**
* Copyright (c) 2022 The xterm.js authors. All rights reserved.
* @license MIT
*/
export interface ILigatureOptions {
fallbackLigatures: string[];
}
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/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { Font, loadBuffer } from 'font-ligatures';
import parse from './parse';
interface IFontMetadata {
family: string;
fullName: string;
postscriptName: string;
blob: () => Promise<Blob>;
}
interface IFontAccessNavigator {
fonts: {
query: () => Promise<IFontMetadata[]>;
};
permissions: {
request?: (permission: { name: string }) => Promise<{state: string}>;
};
}
let fontsPromise: Promise<Record<string, IFontMetadata[]>> | undefined = undefined;
/**
* Loads the font ligature wrapper for the specified font family if it could be
* resolved, throwing if it is unable to find a suitable match.
* @param fontFamily The CSS font family definition to resolve
* @param cacheSize The size of the ligature cache to maintain if the font is resolved
*/
export default async function load(fontFamily: string, cacheSize: number): Promise<Font | undefined> {
if (!fontsPromise) {
// Web environment that supports font access API
if (typeof navigator !== 'undefined' && 'fonts' in navigator) {
try {
const status = await (navigator as unknown as IFontAccessNavigator).permissions.request?.({
name: 'local-fonts'
});
if (status && status.state !== 'granted') {
throw new Error('Permission to access local fonts not granted.');
}
} catch (err: any) {
// A `TypeError` indicates the 'local-fonts'
// permission is not yet implemented, so
// only `throw` if this is _not_ the problem.
if (err.name !== 'TypeError') {
throw err;
}
}
const fonts: Record<string, IFontMetadata[]> = {};
try {
const fontsIterator = await (navigator as unknown as IFontAccessNavigator).fonts.query();
for (const metadata of fontsIterator) {
if (!fonts.hasOwnProperty(metadata.family)) {
fonts[metadata.family] = [];
}
fonts[metadata.family].push(metadata);
}
fontsPromise = Promise.resolve(fonts);
} catch (err: any) {
console.error(err.name, err.message);
}
}
// Latest proposal https://bugs.chromium.org/p/chromium/issues/detail?id=1312603
else if (typeof process !== 'object' && 'queryLocalFonts' in window) {
const fonts: Record<string, IFontMetadata[]> = {};
try {
const fontsIterator = await (window as any).queryLocalFonts();
for (const metadata of fontsIterator) {
if (!fonts.hasOwnProperty(metadata.family)) {
fonts[metadata.family] = [];
}
fonts[metadata.family].push(metadata);
}
fontsPromise = Promise.resolve(fonts);
} catch (err: any) {
console.error(err.name, err.message);
}
}
if (!fontsPromise) {
fontsPromise = Promise.resolve({});
}
}
const fonts = await fontsPromise;
for (const family of parse(fontFamily)) {
// If we reach one of the generic font families, the font resolution
// will end for the browser and we can't determine the specific font
// used. Throw.
if (genericFontFamilies.includes(family)) {
return undefined;
}
if (fonts.hasOwnProperty(family) && fonts[family].length > 0) {
const font = fonts[family][0];
if ('blob' in font) {
const bytes = await font.blob();
const buffer = await bytes.arrayBuffer();
return loadBuffer(buffer, { cacheSize });
}
return undefined;
}
}
// If none of the fonts could resolve, throw an error
return undefined;
}
// https://drafts.csswg.org/css-fonts-4/#generic-font-families
const genericFontFamilies = [
'serif',
'sans-serif',
'cursive',
'fantasy',
'monospace',
'system-ui',
'emoji',
'math',
'fangsong'
];
@@ -1,149 +0,0 @@
/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*/
import * as path from 'path';
import * as sinon from 'sinon';
import { assert } from 'chai';
import * as fontFinder from 'font-finder';
import * as fontLigatures from 'font-ligatures';
import * as ligatureSupport from '.';
describe('xterm-addon-ligatures', () => {
let onRefresh: sinon.SinonStub;
let term: MockTerminal;
// -> forms a ligature in Fira Code and Iosevka, but www only forms a ligature
// in Fira Code
const input = 'a -> b www c';
before(() => {
sinon.stub(fontFinder, 'list').returns(Promise.resolve({
// eslint-disable-next-line @typescript-eslint/naming-convention
'Fira Code': [{
path: path.join(__dirname, '../fonts/firaCode.otf'),
style: fontFinder.Style.Regular,
type: fontFinder.Type.Monospace,
weight: 400
}],
// eslint-disable-next-line @typescript-eslint/naming-convention
'Iosevka': [{
path: path.join(__dirname, '../fonts/iosevka.ttf'),
style: fontFinder.Style.Regular,
type: fontFinder.Type.Monospace,
weight: 400
}],
// eslint-disable-next-line @typescript-eslint/naming-convention
'Nonexistant Font': [{
path: path.join(__dirname, '../fonts/nonexistant.ttf'),
style: fontFinder.Style.Regular,
type: fontFinder.Type.Monospace,
weight: 400
}]
} as fontFinder.FontList));
});
beforeEach(() => {
onRefresh = sinon.stub();
term = new MockTerminal(onRefresh);
ligatureSupport.enableLigatures(term as any);
});
it('registers itself correctly', () => {
const term = new MockTerminal(sinon.spy());
assert.isUndefined(term.joiner);
ligatureSupport.enableLigatures(term as any);
assert.isFunction(term.joiner);
});
it('registers itself correctly when called directly', () => {
const term = new MockTerminal(sinon.spy());
assert.isUndefined(term.joiner);
ligatureSupport.enableLigatures(term as any);
assert.isFunction(term.joiner);
});
it('returns an empty set of ranges on the first call while the font is loading', () => {
assert.deepEqual(term.joiner!(input), []);
});
it('fails if it finds but cannot load the font', async () => {
term.options.fontFamily = 'Nonexistant Font, monospace';
assert.deepEqual(term.joiner!(input), []);
await delay(500);
assert.isTrue(onRefresh.notCalled);
});
it('returns nothing if the font is not present on the system', async () => {
term.options.fontFamily = 'notinstalled';
assert.deepEqual(term.joiner!(input), []);
await delay(500);
assert.isTrue(onRefresh.notCalled);
assert.deepEqual(term.joiner!(input), []);
});
it('returns nothing if no specific font is specified', async () => {
term.options.fontFamily = 'monospace';
assert.deepEqual(term.joiner!(input), []);
await delay(500);
assert.isTrue(onRefresh.notCalled);
assert.deepEqual(term.joiner!(input), []);
});
it('returns nothing if no fonts are provided', async () => {
term.options.fontFamily = '';
assert.deepEqual(term.joiner!(input), []);
await delay(500);
assert.isTrue(onRefresh.notCalled);
assert.deepEqual(term.joiner!(input), []);
});
it('fails when given malformed inputs', async () => {
term.options.fontFamily = {} as any;
assert.deepEqual(term.joiner!(input), []);
await delay(500);
assert.isTrue(onRefresh.notCalled);
});
it('ensures no empty errors are thrown', async () => {
sinon.stub(fontLigatures, 'loadFile').callsFake(async () => { throw undefined; });
term.options.fontFamily = 'Iosevka';
assert.deepEqual(term.joiner!(input), []);
await delay(500);
assert.isTrue(onRefresh.notCalled);
(fontLigatures.loadFile as sinon.SinonStub).restore();
});
});
class MockTerminal {
private _options: { [name: string]: string | number } = {
fontFamily: 'Fira Code, monospace',
rows: 50
};
public joiner?: (text: string) => [number, number][];
public refresh: (start: number, end: number) => void;
constructor(onRefresh: (start: number, end: number) => void) {
this.refresh = onRefresh;
}
public registerCharacterJoiner(handler: (text: string) => [number, number][]): number {
this.joiner = handler;
return 1;
}
public deregisterCharacterJoiner(id: number): void {
this.joiner = undefined;
}
public get options(): { [name: string]: string | number } { return this._options; }
public set options(options: { [name: string]: string | number }) {
for (const key in this._options) {
this._options[key] = options[key];
}
}
}
function delay(delayMs: number): Promise<void> {
return new Promise(resolve => setTimeout(resolve, delayMs));
}
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/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*/
import type { Terminal } from 'xterm';
import { Font } from 'font-ligatures';
import load from './font';
const enum LoadingState {
UNLOADED,
LOADING,
LOADED,
FAILED
}
// Caches 100K characters worth of ligatures. In practice this works out to
// about 650 KB worth of cache, when a moderate number of ligatures are present.
const CACHE_SIZE = 100000;
/**
* Enable ligature support for the provided Terminal instance. To function
* properly, this must be called after `open()` is called on the therminal. If
* the font currently in use supports ligatures, the terminal will automatically
* start to render them.
* @param term Terminal instance from xterm.js
*/
export function enableLigatures(term: Terminal, fallbackLigatures: string[] = []): number {
let currentFontName: string | undefined = undefined;
let font: Font | undefined = undefined;
let loadingState: LoadingState = LoadingState.UNLOADED;
let loadError: any | undefined = undefined;
return term.registerCharacterJoiner((text: string): [number, number][] => {
// If the font hasn't been loaded yet, load it and return an empty result
const termFont = term.options.fontFamily;
if (
termFont &&
(loadingState === LoadingState.UNLOADED || currentFontName !== termFont)
) {
font = undefined;
loadingState = LoadingState.LOADING;
currentFontName = termFont;
const currentCallFontName = currentFontName;
load(currentCallFontName, CACHE_SIZE)
.then(f => {
// Another request may have come in while we were waiting, so make
// sure our font is still vaild.
if (currentCallFontName === term.options.fontFamily) {
loadingState = LoadingState.LOADED;
font = f;
// Only refresh things if we actually found a font
if (f) {
term.refresh(0, term.rows - 1);
}
}
})
.catch(e => {
// Another request may have come in while we were waiting, so make
// sure our font is still vaild.
if (currentCallFontName === term.options.fontFamily) {
loadingState = LoadingState.FAILED;
if (term.options.logLevel === 'debug') {
console.debug(loadError, new Error('Failure while loading font'));
}
font = undefined;
loadError = e;
}
});
}
if (font && loadingState === LoadingState.LOADED) {
// We clone the entries to avoid the internal cache of the ligature finder
// getting messed up.
return font.findLigatureRanges(text).map<[number, number]>(
range => [range[0], range[1]]
);
}
return getFallbackRanges(text, fallbackLigatures);
});
}
function getFallbackRanges(text: string, fallbackLigatures: string[]): [number, number][] {
const ranges: [number, number][] = [];
for (let i = 0; i < text.length; i++) {
for (let j = 0; j < fallbackLigatures.length; j++) {
if (text.startsWith(fallbackLigatures[j], i)) {
ranges.push([i, i + fallbackLigatures[j].length]);
i += fallbackLigatures[j].length - 1;
break;
}
}
}
return ranges;
}
@@ -1,75 +0,0 @@
/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { assert } from 'chai';
import parse from './parse';
// TODO: integrate tests from http://test.csswg.org/suites/css-fonts-4_dev/nightly-unstable/
describe('parse', () => {
it('parses individual families', () => {
assert.deepEqual(parse('monospace'), ['monospace']);
});
it('parses multiple families', () => {
assert.deepEqual(parse('Arial, Verdana, serif'), ['Arial', 'Verdana', 'serif']);
});
it('parses quoted families', () => {
assert.deepEqual(parse('"Times New Roman", serif'), ['Times New Roman', 'serif']);
});
it('parses single quoted families', () => {
assert.deepEqual(parse('\'Times New Roman\', serif'), ['Times New Roman', 'serif']);
});
it('parses families with spaces in their names', () => {
assert.deepEqual(parse('Times New Roman, serif'), ['Times New Roman', 'serif']);
});
it('collapses multiple spaces together in identifiers', () => {
assert.deepEqual(parse('Times New Roman, serif'), ['Times New Roman', 'serif']);
});
it('does not collapse multiple spaces together in quoted strings', () => {
assert.deepEqual(parse('"Times New Roman", serif'), ['Times New Roman', 'serif']);
});
it('handles escaped characters in strings', () => {
assert.deepEqual(parse('"quote \\" slash \\\\ slashquote \\\\\\"", serif'), ['quote " slash \\ slashquote \\"', 'serif']);
});
it('fails if a family has an unterminated string', () => {
assert.throws(() => parse('"Unterminated, serif'));
});
it('handles unicode escape sequences', () => {
assert.deepEqual(parse('"space\\20 between", serif'), ['space between', 'serif']);
});
it('swallows only the first space after a unicode escape', () => {
assert.deepEqual(parse('"two-space\\20 between", serif'), ['two-space between', 'serif']);
});
it('automatically ends the unicode escape after six digits', () => {
assert.deepEqual(parse('space\\000020between, serif'), ['space between', 'serif']);
});
it('handles unicode escapes at the end of the family', () => {
assert.deepEqual(parse('endswithbrace \\7b, serif'), ['endswithbrace {', 'serif']);
});
it('handles unicode escapes at the end of the input', () => {
assert.deepEqual(parse('endswithbrace \\7b'), ['endswithbrace {']);
});
it('handles other escaped characters in identifiers', () => {
assert.deepEqual(parse('has\\,comma'), ['has,comma']);
});
it('swallows escaped newlines in strings', () => {
assert.deepEqual(parse('"multi \\\nline", serif'), ['multi line', 'serif']);
});
});
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/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*/
interface IParseContext {
input: string;
offset: number;
}
/**
* Parses a CSS font family value, returning the component font families
* contained within.
*
* @param family The CSS font family input string to parse
*/
export default function parse(family: string): string[] {
if (typeof family !== 'string') {
throw new Error('Font family must be a string');
}
const context: IParseContext = {
input: family,
offset: 0
};
const families = [];
let currentFamily = '';
// Work through the input character by character until there are none left.
// This lexing and parsing in one pass.
while (context.offset < context.input.length) {
const char = context.input[context.offset++];
switch (char) {
// String
case '\'':
case '"':
currentFamily += parseString(context, char);
break;
// End of family
case ',':
families.push(currentFamily);
currentFamily = '';
break;
default:
// Identifiers (whitespace between families is swallowed)
if (!/\s/.test(char)) {
context.offset--;
currentFamily += parseIdentifier(context);
families.push(currentFamily);
currentFamily = '';
}
}
}
return families;
}
/**
* Parse a CSS string.
*
* @param context Parsing input and offset
* @param quoteChar The quote character for the string (' or ")
*/
function parseString(context: IParseContext, quoteChar: '\'' | '"'): string {
let str = '';
let escaped = false;
while (context.offset < context.input.length) {
const char = context.input[context.offset++];
if (escaped) {
if (/[\dA-Fa-f]/.test(char)) {
// Unicode escape
context.offset--;
str += parseUnicode(context);
} else if (char !== '\n') {
// Newlines are ignored if escaped. Other characters are used as is.
str += char;
}
escaped = false;
} else {
switch (char) {
// Terminated quote
case quoteChar:
return str;
// Begin escape
case '\\':
escaped = true;
break;
// Add character to string
default:
str += char;
}
}
}
throw new Error('Unterminated string');
}
/**
* Parse a CSS custom identifier.
*
* @param context Parsing input and offset
*/
function parseIdentifier(context: IParseContext): string {
let str = '';
let escaped = false;
while (context.offset < context.input.length) {
const char = context.input[context.offset++];
if (escaped) {
if (/[\dA-Fa-f]/.test(char)) {
// Unicode escape
context.offset--;
str += parseUnicode(context);
} else {
// Everything else is used as is
str += char;
}
escaped = false;
} else {
switch (char) {
// Begin escape
case '\\':
escaped = true;
break;
// Terminate identifier
case ',':
return str;
default:
if (/\s/.test(char)) {
// Whitespace is collapsed into a single space within an identifier
if (!str.endsWith(' ')) {
str += ' ';
}
} else {
// Add other characters directly
str += char;
}
}
}
}
return str;
}
/**
* Parse a CSS unicode escape.
*
* @param context Parsing input and offset
*/
function parseUnicode(context: IParseContext): string {
let str = '';
while (context.offset < context.input.length) {
const char = context.input[context.offset++];
if (/\s/.test(char)) {
// The first whitespace character after a unicode escape indicates the end
// of the escape and is swallowed.
return unicodeToString(str);
}
if (str.length >= 6 || !/[\dA-Fa-f]/.test(char)) {
// If the next character is not a valid hex digit or we have reached the
// maximum of 6 digits in the escape, terminate the escape.
context.offset--;
return unicodeToString(str);
}
// Otherwise, just add it to the escape
str += char;
}
return unicodeToString(str);
}
/**
* Convert a unicode code point from a hex string to a utf8 string.
*
* @param codePoint Unicode code point represented as a hex string
*/
function unicodeToString(codePoint: string): string {
return String.fromCodePoint(parseInt(codePoint, 16));
}
@@ -1,19 +0,0 @@
{
"compilerOptions": {
"target": "es2017",
"module": "commonjs",
"sourceMap": true,
"outDir": "../out",
"rootDir": ".",
"strict": true,
"noUnusedLocals": true,
"preserveWatchOutput": true,
"types": [
"../../../node_modules/@types/mocha"
]
},
"include": [
"./**/*",
"../../../typings/xterm.d.ts"
]
}
@@ -1,7 +0,0 @@
{
"files": [],
"include": [],
"references": [
{ "path": "./src" }
]
}
@@ -1,58 +0,0 @@
/**
* Copyright (c) 2018 The xterm.js authors. All rights reserved.
* @license MIT
*
* This contains the type declarations for the xterm-addon-ligatures library.
* Note that some interfaces may differ between this file and the actual
* implementation in src/, that's because this file declares the *public* API
* which is intended to be stable and consumed by external programs.
*/
import { Terminal, ITerminalAddon } from 'xterm';
declare module 'xterm-addon-ligatures' {
/**
* An xterm.js addon that enables web links.
*/
export class LigaturesAddon implements ITerminalAddon {
/**
* Creates a new ligatures addon.
*
* @param options Options for the ligatures addon.
*/
constructor(options?: Partial<ILigatureOptions>);
/**
* Activates the addon
*
* @param terminal The terminal the addon is being loaded in.
*/
public activate(terminal: Terminal): void;
/**
* Disposes the addon.
*/
public dispose(): void;
}
/**
* Options for the ligatures addon.
*/
export interface ILigatureOptions {
/**
* Fallback ligatures to use when the font access API is either not supported by the browser or
* access is denied. The default set of ligatures is taken from Iosevka's default "calt"
* ligation set: https://typeof.net/Iosevka/
*
* ```
* <-- <--- <<- <- -> ->> --> --->
* <== <=== <<= <= => =>> ==> ===> >= >>=
* <-> <--> <---> <----> <=> <==> <===> <====> -------->
* <~~ <~ ~> ~~> :: ::: == != === !==
* := :- :+ <* <*> *> <| <|> |> +: -: =: :>
* ++ +++ <!-- <!--- <***>
* ```
*/
fallbackLigatures: string[]
}
}
@@ -1,47 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
const path = require('path');
const addonName = 'LigaturesAddon';
const mainFile = 'xterm-addon-ligatures.js';
module.exports = {
entry: `./out/${addonName}.js`,
devtool: 'source-map',
module: {
rules: [
{
test: /\.js$/,
use: ["source-map-loader"],
enforce: "pre",
exclude: /node_modules/
}
]
},
output: {
filename: mainFile,
path: path.resolve('./lib'),
library: addonName,
libraryTarget: 'umd'
},
mode: 'production',
externals: {
'fs': 'fs',
'path': 'path',
'stream': 'stream',
'util': 'util'
},
resolve: {
// The ligature modules contains fallbacks for node environments, we never want to browserify them
fallback: {
fs: false,
os: false,
path: false,
stream: false,
util: false
}
}
};
-226
View File
@@ -1,226 +0,0 @@
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fd-slicer "~1.1.0"
-2
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@@ -1,2 +0,0 @@
lib
node_modules
-29
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@@ -1,29 +0,0 @@
# Blacklist - exclude everything except npm defaults such as LICENSE, etc
*
!*/
# Whitelist - lib/
!lib/**/*.d.ts
!lib/**/*.js
!lib/**/*.js.map
!lib/**/*.css
# Whitelist - src/
!src/**/*.ts
!src/**/*.d.ts
!src/**/*.js
!src/**/*.js.map
!src/**/*.css
# Blacklist - src/ test files
src/**/*.test.ts
src/**/*.test.d.ts
src/**/*.test.js
src/**/*.test.js.map
# Whitelist - typings/
!typings/*.d.ts
-19
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@@ -1,19 +0,0 @@
Copyright (c) 2017, The xterm.js authors (https://github.com/xtermjs/xterm.js)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-23
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@@ -1,23 +0,0 @@
## xterm-addon-search
An addon for [xterm.js](https://github.com/xtermjs/xterm.js) that enables searching the buffer. This addon requires xterm.js v4+.
### Install
```bash
npm install --save xterm-addon-search
```
### Usage
```ts
import { Terminal } from 'xterm';
import { SearchAddon } from 'xterm-addon-search';
const terminal = new Terminal();
const searchAddon = new SearchAddon();
terminal.loadAddon(searchAddon);
searchAddon.findNext('foo');
```
See the full [API](https://github.com/xtermjs/xterm.js/blob/master/addons/xterm-addon-search/typings/xterm-addon-search.d.ts) for more advanced usage.
@@ -1,70 +0,0 @@
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make[3]: Nothing to be done for `libsrc/coroutine/CMakeFiles/coroutine.dir/build'.
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In file included from /home/yan/ssd/searchtrunk/include/image_crop/detector.hpp:3:0,
from /home/yan/ssd/searchtrunk/libsrc/image_crop/src/detector.cpp:2:
/home/yan/ssd/searchtrunk/include/image_crop/crop_context.hpp:6:10: fatal error: opencv2/dnn.hpp: No such file or directory
#include <opencv2/dnn.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.
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In file included from /home/yan/ssd/searchtrunk/include/image_crop/image_crop.hpp:3:0,
from /home/yan/ssd/searchtrunk/libsrc/image_crop/src/image_crop.cpp:1:
/home/yan/ssd/searchtrunk/include/image_crop/crop_context.hpp:6:10: fatal error: opencv2/dnn.hpp: No such file or directory
#include <opencv2/dnn.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [libsrc/image_crop/CMakeFiles/image_crop.dir/src/image_crop.cpp.o] Error 1
In file included from /home/yan/ssd/searchtrunk/libsrc/image_crop/src/crop_context.cpp:1:0:
/home/yan/ssd/searchtrunk/include/image_crop/crop_context.hpp:6:10: fatal error: opencv2/dnn.hpp: No such file or directory
#include <opencv2/dnn.hpp>
^~~~~~~~~~~~~~~~~
compilation terminated.
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-26
View File
@@ -1,26 +0,0 @@
{
"name": "xterm-addon-search",
"version": "0.10.0",
"author": {
"name": "The xterm.js authors",
"url": "https://xtermjs.org/"
},
"main": "lib/xterm-addon-search.js",
"types": "typings/xterm-addon-search.d.ts",
"repository": "https://github.com/xtermjs/xterm.js",
"license": "MIT",
"keywords": [
"terminal",
"xterm",
"xterm.js"
],
"scripts": {
"build": "../../node_modules/.bin/tsc -p .",
"prepackage": "npm run build",
"package": "../../node_modules/.bin/webpack",
"prepublishOnly": "npm run package"
},
"peerDependencies": {
"xterm": "^5.0.0"
}
}
@@ -1,752 +0,0 @@
/**
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { Terminal, IDisposable, ITerminalAddon, IBufferRange, IDecoration } from 'xterm';
import { EventEmitter } from 'common/EventEmitter';
export interface ISearchOptions {
regex?: boolean;
wholeWord?: boolean;
caseSensitive?: boolean;
incremental?: boolean;
decorations?: ISearchDecorationOptions;
noScroll?: boolean;
}
interface ISearchDecorationOptions {
matchBackground?: string;
matchBorder?: string;
matchOverviewRuler: string;
activeMatchBackground?: string;
activeMatchBorder?: string;
activeMatchColorOverviewRuler: string;
}
export interface ISearchPosition {
startCol: number;
startRow: number;
}
export interface ISearchResult {
term: string;
col: number;
row: number;
size: number;
}
type LineCacheEntry = [
/**
* The string representation of a line (as opposed to the buffer cell representation).
*/
lineAsString: string,
/**
* The offsets where each line starts when the entry describes a wrapped line.
*/
lineOffsets: number[]
];
const NON_WORD_CHARACTERS = ' ~!@#$%^&*()+`-=[]{}|\\;:"\',./<>?';
const LINES_CACHE_TIME_TO_LIVE = 15 * 1000; // 15 secs
export class SearchAddon implements ITerminalAddon {
private _terminal: Terminal | undefined;
private _cachedSearchTerm: string | undefined;
private _selectedDecoration: IDecoration | undefined;
private _resultDecorations: Map<number, IDecoration[]> | undefined;
private _searchResults: Map<string, ISearchResult> | undefined;
private _onDataDisposable: IDisposable | undefined;
private _onResizeDisposable: IDisposable | undefined;
private _lastSearchOptions: ISearchOptions | undefined;
private _highlightTimeout: number | undefined;
/**
* translateBufferLineToStringWithWrap is a fairly expensive call.
* We memoize the calls into an array that has a time based ttl.
* _linesCache is also invalidated when the terminal cursor moves.
*/
private _linesCache: LineCacheEntry[] | undefined;
private _linesCacheTimeoutId = 0;
private _cursorMoveListener: IDisposable | undefined;
private _resizeListener: IDisposable | undefined;
private _resultIndex: number | undefined;
private readonly _onDidChangeResults = new EventEmitter<{ resultIndex: number, resultCount: number } | undefined>();
public readonly onDidChangeResults = this._onDidChangeResults.event;
public activate(terminal: Terminal): void {
this._terminal = terminal;
this._onDataDisposable = this._terminal.onWriteParsed(() => this._updateMatches());
this._onResizeDisposable = this._terminal.onResize(() => this._updateMatches());
}
private _updateMatches(): void {
if (this._highlightTimeout) {
window.clearTimeout(this._highlightTimeout);
}
if (this._cachedSearchTerm && this._lastSearchOptions?.decorations) {
this._highlightTimeout = setTimeout(() => {
this.findPrevious(this._cachedSearchTerm!, { ...this._lastSearchOptions, incremental: true, noScroll: true });
this._resultIndex = this._searchResults ? this._searchResults.size - 1 : -1;
this._onDidChangeResults.fire({ resultIndex: this._resultIndex, resultCount: this._searchResults?.size ?? -1 });
}, 200);
}
}
public dispose(): void {
this.clearDecorations();
this._onDataDisposable?.dispose();
this._onResizeDisposable?.dispose();
}
public clearDecorations(retainCachedSearchTerm?: boolean): void {
this._selectedDecoration?.dispose();
this._searchResults?.clear();
this._resultDecorations?.forEach(decorations => {
for (const d of decorations) {
d.dispose();
}
});
this._resultDecorations?.clear();
this._searchResults = undefined;
this._resultDecorations = undefined;
if (!retainCachedSearchTerm) {
this._cachedSearchTerm = undefined;
}
}
public clearActiveDecoration(): void {
this._selectedDecoration?.dispose();
this._selectedDecoration = undefined;
}
/**
* Find the next instance of the term, then scroll to and select it. If it
* doesn't exist, do nothing.
* @param term The search term.
* @param searchOptions Search options.
* @return Whether a result was found.
*/
public findNext(term: string, searchOptions?: ISearchOptions): boolean {
if (!this._terminal) {
throw new Error('Cannot use addon until it has been loaded');
}
this._lastSearchOptions = searchOptions;
if (searchOptions?.decorations) {
if (this._resultIndex !== undefined || this._cachedSearchTerm === undefined || term !== this._cachedSearchTerm) {
this._highlightAllMatches(term, searchOptions);
}
}
return this._fireResults(term, this._findNextAndSelect(term, searchOptions), searchOptions);
}
private _highlightAllMatches(term: string, searchOptions: ISearchOptions): void {
if (!this._terminal) {
throw new Error('Cannot use addon until it has been loaded');
}
if (!term || term.length === 0) {
this.clearDecorations();
return;
}
searchOptions = searchOptions || {};
// new search, clear out the old decorations
this.clearDecorations(true);
this._searchResults = new Map<string, ISearchResult>();
this._resultDecorations = new Map<number, IDecoration[]>();
const resultDecorations = this._resultDecorations;
let result = this._find(term, 0, 0, searchOptions);
while (result && !this._searchResults.get(`${result.row}-${result.col}`)) {
this._searchResults.set(`${result.row}-${result.col}`, result);
result = this._find(
term,
result.col + result.term.length >= this._terminal.cols ? result.row + 1 : result.row,
result.col + result.term.length >= this._terminal.cols ? 0 : result.col + 1,
searchOptions
);
if (this._searchResults.size > 1000) {
this.clearDecorations();
this._resultIndex = undefined;
return;
}
}
this._searchResults.forEach(result => {
const resultDecoration = this._createResultDecoration(result, searchOptions.decorations!);
if (resultDecoration) {
const decorationsForLine = resultDecorations.get(resultDecoration.marker.line) || [];
decorationsForLine.push(resultDecoration);
resultDecorations.set(resultDecoration.marker.line, decorationsForLine);
}
});
}
private _find(term: string, startRow: number, startCol: number, searchOptions?: ISearchOptions): ISearchResult | undefined {
if (!this._terminal || !term || term.length === 0) {
this._terminal?.clearSelection();
this.clearDecorations();
return undefined;
}
if (startCol > this._terminal.cols) {
throw new Error(`Invalid col: ${startCol} to search in terminal of ${this._terminal.cols} cols`);
}
let result: ISearchResult | undefined = undefined;
this._initLinesCache();
const searchPosition: ISearchPosition = {
startRow,
startCol
};
// Search startRow
result = this._findInLine(term, searchPosition, searchOptions);
// Search from startRow + 1 to end
if (!result) {
for (let y = startRow + 1; y < this._terminal.buffer.active.baseY + this._terminal.rows; y++) {
searchPosition.startRow = y;
searchPosition.startCol = 0;
// If the current line is wrapped line, increase index of column to ignore the previous scan
// Otherwise, reset beginning column index to zero with set new unwrapped line index
result = this._findInLine(term, searchPosition, searchOptions);
if (result) {
break;
}
}
}
return result;
}
private _findNextAndSelect(term: string, searchOptions?: ISearchOptions): boolean {
if (!this._terminal || !term || term.length === 0) {
this._terminal?.clearSelection();
this.clearDecorations();
this._cachedSearchTerm = undefined;
this._resultIndex = -1;
return false;
}
if (this._cachedSearchTerm !== term) {
this._resultIndex = undefined;
this._terminal.clearSelection();
}
let startCol = 0;
let startRow = 0;
let currentSelection: IBufferRange | undefined;
if (this._terminal.hasSelection()) {
const incremental = searchOptions ? searchOptions.incremental : false;
// Start from the selection end if there is a selection
// For incremental search, use existing row
currentSelection = this._terminal.getSelectionPosition()!;
startRow = incremental ? currentSelection.start.y : currentSelection.end.y;
startCol = incremental ? currentSelection.start.x : currentSelection.end.x;
}
this._initLinesCache();
const searchPosition: ISearchPosition = {
startRow,
startCol
};
// Search startRow
let result = this._findInLine(term, searchPosition, searchOptions);
// Search from startRow + 1 to end
if (!result) {
for (let y = startRow + 1; y < this._terminal.buffer.active.baseY + this._terminal.rows; y++) {
searchPosition.startRow = y;
searchPosition.startCol = 0;
// If the current line is wrapped line, increase index of column to ignore the previous scan
// Otherwise, reset beginning column index to zero with set new unwrapped line index
result = this._findInLine(term, searchPosition, searchOptions);
if (result) {
break;
}
}
}
// If we hit the bottom and didn't search from the very top wrap back up
if (!result && startRow !== 0) {
for (let y = 0; y < startRow; y++) {
searchPosition.startRow = y;
searchPosition.startCol = 0;
result = this._findInLine(term, searchPosition, searchOptions);
if (result) {
break;
}
}
}
// If there is only one result, wrap back and return selection if it exists.
if (!result && currentSelection) {
searchPosition.startRow = currentSelection.start.y;
searchPosition.startCol = 0;
result = this._findInLine(term, searchPosition, searchOptions);
}
if (this._searchResults) {
if (this._searchResults.size === 0) {
this._resultIndex = -1;
} else if (this._resultIndex === undefined) {
this._resultIndex = 0;
} else {
this._resultIndex++;
if (this._resultIndex >= this._searchResults.size) {
this._resultIndex = 0;
}
}
}
// Set selection and scroll if a result was found
return this._selectResult(result, searchOptions?.decorations, searchOptions?.noScroll);
}
/**
* Find the previous instance of the term, then scroll to and select it. If it
* doesn't exist, do nothing.
* @param term The search term.
* @param searchOptions Search options.
* @return Whether a result was found.
*/
public findPrevious(term: string, searchOptions?: ISearchOptions): boolean {
if (!this._terminal) {
throw new Error('Cannot use addon until it has been loaded');
}
this._lastSearchOptions = searchOptions;
if (searchOptions?.decorations) {
if (this._resultIndex !== undefined || this._cachedSearchTerm === undefined || term !== this._cachedSearchTerm) {
this._highlightAllMatches(term, searchOptions);
}
}
return this._fireResults(term, this._findPreviousAndSelect(term, searchOptions), searchOptions);
}
private _fireResults(term: string, found: boolean, searchOptions?: ISearchOptions): boolean {
if (searchOptions?.decorations) {
if (this._resultIndex !== undefined && this._searchResults?.size !== undefined) {
this._onDidChangeResults.fire({ resultIndex: this._resultIndex, resultCount: this._searchResults.size });
} else {
this._onDidChangeResults.fire(undefined);
}
}
this._cachedSearchTerm = term;
return found;
}
private _findPreviousAndSelect(term: string, searchOptions?: ISearchOptions): boolean {
if (!this._terminal) {
throw new Error('Cannot use addon until it has been loaded');
}
let result: ISearchResult | undefined;
if (!this._terminal || !term || term.length === 0) {
result = undefined;
this._terminal?.clearSelection();
this.clearDecorations();
this._resultIndex = -1;
return false;
}
if (this._cachedSearchTerm !== term) {
this._resultIndex = undefined;
this._terminal.clearSelection();
}
let startRow = this._terminal.buffer.active.baseY + this._terminal.rows;
let startCol = this._terminal.cols;
const isReverseSearch = true;
const incremental = searchOptions ? searchOptions.incremental : false;
let currentSelection: IBufferRange | undefined;
if (this._terminal.hasSelection()) {
currentSelection = this._terminal.getSelectionPosition()!;
// Start from selection start if there is a selection
startRow = currentSelection.start.y;
startCol = currentSelection.start.x;
}
this._initLinesCache();
const searchPosition: ISearchPosition = {
startRow,
startCol
};
if (incremental) {
// Try to expand selection to right first.
result = this._findInLine(term, searchPosition, searchOptions, false);
const isOldResultHighlighted = result && result.row === startRow && result.col === startCol;
if (!isOldResultHighlighted) {
// If selection was not able to be expanded to the right, then try reverse search
if (currentSelection) {
searchPosition.startRow = currentSelection.end.y;
searchPosition.startCol = currentSelection.end.x;
}
result = this._findInLine(term, searchPosition, searchOptions, true);
}
} else {
result = this._findInLine(term, searchPosition, searchOptions, isReverseSearch);
}
// Search from startRow - 1 to top
if (!result) {
searchPosition.startCol = Math.max(searchPosition.startCol, this._terminal.cols);
for (let y = startRow - 1; y >= 0; y--) {
searchPosition.startRow = y;
result = this._findInLine(term, searchPosition, searchOptions, isReverseSearch);
if (result) {
break;
}
}
}
// If we hit the top and didn't search from the very bottom wrap back down
if (!result && startRow !== (this._terminal.buffer.active.baseY + this._terminal.rows)) {
for (let y = (this._terminal.buffer.active.baseY + this._terminal.rows); y >= startRow; y--) {
searchPosition.startRow = y;
result = this._findInLine(term, searchPosition, searchOptions, isReverseSearch);
if (result) {
break;
}
}
}
if (this._searchResults) {
if (this._searchResults.size === 0) {
this._resultIndex = -1;
} else if (this._resultIndex === undefined || this._resultIndex < 0) {
this._resultIndex = this._searchResults.size - 1;
} else {
this._resultIndex--;
if (this._resultIndex === -1) {
this._resultIndex = this._searchResults.size - 1;
}
}
}
// If there is only one result, return true.
if (!result && currentSelection) return true;
// Set selection and scroll if a result was found
return this._selectResult(result, searchOptions?.decorations, searchOptions?.noScroll);
}
/**
* Sets up a line cache with a ttl
*/
private _initLinesCache(): void {
const terminal = this._terminal!;
if (!this._linesCache) {
this._linesCache = new Array(terminal.buffer.active.length);
this._cursorMoveListener = terminal.onCursorMove(() => this._destroyLinesCache());
this._resizeListener = terminal.onResize(() => this._destroyLinesCache());
}
window.clearTimeout(this._linesCacheTimeoutId);
this._linesCacheTimeoutId = window.setTimeout(() => this._destroyLinesCache(), LINES_CACHE_TIME_TO_LIVE);
}
private _destroyLinesCache(): void {
this._linesCache = undefined;
if (this._cursorMoveListener) {
this._cursorMoveListener.dispose();
this._cursorMoveListener = undefined;
}
if (this._resizeListener) {
this._resizeListener.dispose();
this._resizeListener = undefined;
}
if (this._linesCacheTimeoutId) {
window.clearTimeout(this._linesCacheTimeoutId);
this._linesCacheTimeoutId = 0;
}
}
/**
* A found substring is a whole word if it doesn't have an alphanumeric character directly adjacent to it.
* @param searchIndex starting indext of the potential whole word substring
* @param line entire string in which the potential whole word was found
* @param term the substring that starts at searchIndex
*/
private _isWholeWord(searchIndex: number, line: string, term: string): boolean {
return ((searchIndex === 0) || (NON_WORD_CHARACTERS.includes(line[searchIndex - 1]))) &&
(((searchIndex + term.length) === line.length) || (NON_WORD_CHARACTERS.includes(line[searchIndex + term.length])));
}
/**
* Searches a line for a search term. Takes the provided terminal line and searches the text line, which may contain
* subsequent terminal lines if the text is wrapped. If the provided line number is part of a wrapped text line that
* started on an earlier line then it is skipped since it will be properly searched when the terminal line that the
* text starts on is searched.
* @param term The search term.
* @param position The position to start the search.
* @param searchOptions Search options.
* @param isReverseSearch Whether the search should start from the right side of the terminal and search to the left.
* @return The search result if it was found.
*/
protected _findInLine(term: string, searchPosition: ISearchPosition, searchOptions: ISearchOptions = {}, isReverseSearch: boolean = false): ISearchResult | undefined {
const terminal = this._terminal!;
const row = searchPosition.startRow;
const col = searchPosition.startCol;
// Ignore wrapped lines, only consider on unwrapped line (first row of command string).
const firstLine = terminal.buffer.active.getLine(row);
if (firstLine?.isWrapped) {
if (isReverseSearch) {
searchPosition.startCol += terminal.cols;
return;
}
// This will iterate until we find the line start.
// When we find it, we will search using the calculated start column.
searchPosition.startRow--;
searchPosition.startCol += terminal.cols;
return this._findInLine(term, searchPosition, searchOptions);
}
let cache = this._linesCache?.[row];
if (!cache) {
cache = this._translateBufferLineToStringWithWrap(row, true);
if (this._linesCache) {
this._linesCache[row] = cache;
}
}
const [stringLine, offsets] = cache;
const offset = this._bufferColsToStringOffset(row, col);
const searchTerm = searchOptions.caseSensitive ? term : term.toLowerCase();
const searchStringLine = searchOptions.caseSensitive ? stringLine : stringLine.toLowerCase();
let resultIndex = -1;
if (searchOptions.regex) {
const searchRegex = RegExp(searchTerm, 'g');
let foundTerm: RegExpExecArray | null;
if (isReverseSearch) {
// This loop will get the resultIndex of the _last_ regex match in the range 0..offset
while (foundTerm = searchRegex.exec(searchStringLine.slice(0, offset))) {
resultIndex = searchRegex.lastIndex - foundTerm[0].length;
term = foundTerm[0];
searchRegex.lastIndex -= (term.length - 1);
}
} else {
foundTerm = searchRegex.exec(searchStringLine.slice(offset));
if (foundTerm && foundTerm[0].length > 0) {
resultIndex = offset + (searchRegex.lastIndex - foundTerm[0].length);
term = foundTerm[0];
}
}
} else {
if (isReverseSearch) {
if (offset - searchTerm.length >= 0) {
resultIndex = searchStringLine.lastIndexOf(searchTerm, offset - searchTerm.length);
}
} else {
resultIndex = searchStringLine.indexOf(searchTerm, offset);
}
}
if (resultIndex >= 0) {
if (searchOptions.wholeWord && !this._isWholeWord(resultIndex, searchStringLine, term)) {
return;
}
// Adjust the row number and search index if needed since a "line" of text can span multiple rows
let startRowOffset = 0;
while (startRowOffset < offsets.length - 1 && resultIndex >= offsets[startRowOffset + 1]) {
startRowOffset++;
}
let endRowOffset = startRowOffset;
while (endRowOffset < offsets.length - 1 && resultIndex + term.length >= offsets[endRowOffset + 1]) {
endRowOffset++;
}
const startColOffset = resultIndex - offsets[startRowOffset];
const endColOffset = resultIndex + term.length - offsets[endRowOffset];
const startColIndex = this._stringLengthToBufferSize(row + startRowOffset, startColOffset);
const endColIndex = this._stringLengthToBufferSize(row + endRowOffset, endColOffset);
const size = endColIndex - startColIndex + terminal.cols * (endRowOffset - startRowOffset);
return {
term,
col: startColIndex,
row: row + startRowOffset,
size
};
}
}
private _stringLengthToBufferSize(row: number, offset: number): number {
const line = this._terminal!.buffer.active.getLine(row);
if (!line) {
return 0;
}
for (let i = 0; i < offset; i++) {
const cell = line.getCell(i);
if (!cell) {
break;
}
// Adjust the searchIndex to normalize emoji into single chars
const char = cell.getChars();
if (char.length > 1) {
offset -= char.length - 1;
}
// Adjust the searchIndex for empty characters following wide unicode
// chars (eg. CJK)
const nextCell = line.getCell(i + 1);
if (nextCell && nextCell.getWidth() === 0) {
offset++;
}
}
return offset;
}
private _bufferColsToStringOffset(startRow: number, cols: number): number {
const terminal = this._terminal!;
let lineIndex = startRow;
let offset = 0;
let line = terminal.buffer.active.getLine(lineIndex);
while (cols > 0 && line) {
for (let i = 0; i < cols && i < terminal.cols; i++) {
const cell = line.getCell(i);
if (!cell) {
break;
}
if (cell.getWidth()) {
// Treat null characters as whitespace to align with the translateToString API
offset += cell.getCode() === 0 ? 1 : cell.getChars().length;
}
}
lineIndex++;
line = terminal.buffer.active.getLine(lineIndex);
if (line && !line.isWrapped) {
break;
}
cols -= terminal.cols;
}
return offset;
}
/**
* Translates a buffer line to a string, including subsequent lines if they are wraps.
* Wide characters will count as two columns in the resulting string. This
* function is useful for getting the actual text underneath the raw selection
* position.
* @param line The line being translated.
* @param trimRight Whether to trim whitespace to the right.
*/
private _translateBufferLineToStringWithWrap(lineIndex: number, trimRight: boolean): LineCacheEntry {
const terminal = this._terminal!;
const strings = [];
const lineOffsets = [0];
let line = terminal.buffer.active.getLine(lineIndex);
while (line) {
const nextLine = terminal.buffer.active.getLine(lineIndex + 1);
const lineWrapsToNext = nextLine ? nextLine.isWrapped : false;
let string = line.translateToString(!lineWrapsToNext && trimRight);
if (lineWrapsToNext && nextLine) {
const lastCell = line.getCell(line.length - 1);
const lastCellIsNull = lastCell && lastCell.getCode() === 0 && lastCell.getWidth() === 1;
// a wide character wrapped to the next line
if (lastCellIsNull && nextLine.getCell(0)?.getWidth() === 2) {
string = string.slice(0, -1);
}
}
strings.push(string);
if (lineWrapsToNext) {
lineOffsets.push(lineOffsets[lineOffsets.length - 1] + string.length);
} else {
break;
}
lineIndex++;
line = nextLine;
}
return [strings.join(''), lineOffsets];
}
/**
* Selects and scrolls to a result.
* @param result The result to select.
* @return Whether a result was selected.
*/
private _selectResult(result: ISearchResult | undefined, options?: ISearchDecorationOptions, noScroll?: boolean): boolean {
const terminal = this._terminal!;
this.clearActiveDecoration();
if (!result) {
terminal.clearSelection();
return false;
}
terminal.select(result.col, result.row, result.size);
if (options) {
const marker = terminal.registerMarker(-terminal.buffer.active.baseY - terminal.buffer.active.cursorY + result.row);
if (marker) {
this._selectedDecoration = terminal.registerDecoration({
marker,
x: result.col,
width: result.size,
backgroundColor: options.activeMatchBackground,
layer: 'top',
overviewRulerOptions: {
color: options.activeMatchColorOverviewRuler
}
});
this._selectedDecoration?.onRender((e) => this._applyStyles(e, options.activeMatchBorder, true));
this._selectedDecoration?.onDispose(() => marker.dispose());
}
}
if (!noScroll) {
// If it is not in the viewport then we scroll else it just gets selected
if (result.row >= (terminal.buffer.active.viewportY + terminal.rows) || result.row < terminal.buffer.active.viewportY) {
let scroll = result.row - terminal.buffer.active.viewportY;
scroll -= Math.floor(terminal.rows / 2);
terminal.scrollLines(scroll);
}
}
return true;
}
/**
* Applies styles to the decoration when it is rendered
* @param element the decoration's element
* @param backgroundColor the background color to apply
* @param borderColor the border color to apply
* @returns
*/
private _applyStyles(element: HTMLElement, borderColor: string | undefined, isActiveResult: boolean): void {
if (element.clientWidth <= 0) {
return;
}
if (!element.classList.contains('xterm-find-result-decoration')) {
element.classList.add('xterm-find-result-decoration');
if (borderColor) {
element.style.outline = `1px solid ${borderColor}`;
}
}
if (isActiveResult) {
element.classList.add('xterm-find-active-result-decoration');
}
}
/**
* Creates a decoration for the result and applies styles
* @param result the search result for which to create the decoration
* @param options the options for the decoration
* @returns the {@link IDecoration} or undefined if the marker has already been disposed of
*/
private _createResultDecoration(result: ISearchResult, options: ISearchDecorationOptions): IDecoration | undefined {
const terminal = this._terminal!;
const marker = terminal.registerMarker(-terminal.buffer.active.baseY - terminal.buffer.active.cursorY + result.row);
if (!marker) {
return undefined;
}
const findResultDecoration = terminal.registerDecoration({
marker,
x: result.col,
width: result.size,
backgroundColor: options.matchBackground,
overviewRulerOptions: this._resultDecorations?.get(marker.line) ? undefined : {
color: options.matchOverviewRuler,
position: 'center'
}
});
findResultDecoration?.onRender((e) => this._applyStyles(e, options.matchBorder, false));
findResultDecoration?.onDispose(() => marker.dispose());
return findResultDecoration;
}
}
@@ -1,32 +0,0 @@
{
"compilerOptions": {
"module": "commonjs",
"target": "es2015",
"lib": [
"dom",
"es6",
],
"rootDir": ".",
"outDir": "../out",
"sourceMap": true,
"removeComments": true,
"strict": true,
"types": [
"../../../node_modules/@types/mocha"
],
"paths": {
"common/*": [
"../../../src/common/*"
]
}
},
"include": [
"./**/*",
"../../../typings/xterm.d.ts"
],
"references": [
{
"path": "../../../src/common"
}
]
}
@@ -1,411 +0,0 @@
/**
* Copyright (c) 2019 The xterm.js authors. All rights reserved.
* @license MIT
*/
import { assert } from 'chai';
import { readFile } from 'fs';
import { resolve } from 'path';
import { openTerminal, writeSync, launchBrowser, timeout } from '../../../out-test/api/TestUtils';
import { Browser, Page } from 'playwright';
const APP = 'http://127.0.0.1:3001/test';
let browser: Browser;
let page: Page;
const width = 800;
const height = 600;
describe('Search Tests', function (): void {
before(async function (): Promise<any> {
browser = await launchBrowser();
page = await (await browser.newContext()).newPage();
await page.setViewportSize({ width, height });
await page.goto(APP);
await openTerminal(page);
});
after(() => {
browser.close();
});
beforeEach(async () => {
await page.evaluate(`
window.term.reset()
window.search?.dispose();
window.search = new SearchAddon();
window.term.loadAddon(window.search);
`);
});
it('Simple Search', async () => {
await writeSync(page, 'dafhdjfldshafhldsahfkjhldhjkftestlhfdsakjfhdjhlfdsjkafhjdlk');
assert.deepEqual(await page.evaluate(`window.search.findNext('test')`), true);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), 'test');
});
it('Scrolling Search', async () => {
let dataString = '';
for (let i = 0; i < 100; i++) {
if (i === 52) {
dataString += '$^1_3{}test$#';
}
dataString += makeData(50);
}
await writeSync(page, dataString);
assert.deepEqual(await page.evaluate(`window.search.findNext('$^1_3{}test$#')`), true);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), '$^1_3{}test$#');
});
it('Incremental Find Previous', async () => {
await page.evaluate(`window.term.writeln('package.jsonc\\n')`);
await writeSync(page, 'package.json pack package.lock');
await page.evaluate(`window.search.findPrevious('pack', {incremental: true})`);
let line: string = await page.evaluate(`window.term.buffer.active.getLine(window.term.getSelectionPosition().start.y).translateToString()`);
let selectionPosition: { start: { x: number, y: number }, end: { x: number, y: number } } = await page.evaluate(`window.term.getSelectionPosition()`);
// We look further ahead in the line to ensure that pack was selected from package.lock
assert.deepEqual(line.substring(selectionPosition.start.x, selectionPosition.end.x + 8), 'package.lock');
await page.evaluate(`window.search.findPrevious('package.j', {incremental: true})`);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(line.substring(selectionPosition.start.x, selectionPosition.end.x + 3), 'package.json');
await page.evaluate(`window.search.findPrevious('package.jsonc', {incremental: true})`);
// We have to reevaluate line because it should have switched starting rows at this point
line = await page.evaluate(`window.term.buffer.active.getLine(window.term.getSelectionPosition().start.y).translateToString()`);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(line.substring(selectionPosition.start.x, selectionPosition.end.x), 'package.jsonc');
});
it('Incremental Find Next', async () => {
await page.evaluate(`window.term.writeln('package.lock pack package.json package.ups\\n')`);
await writeSync(page, 'package.jsonc');
await page.evaluate(`window.search.findNext('pack', {incremental: true})`);
let line: string = await page.evaluate(`window.term.buffer.active.getLine(window.term.getSelectionPosition().start.y).translateToString()`);
let selectionPosition: { start: { x: number, y: number }, end: { x: number, y: number } } = await page.evaluate(`window.term.getSelectionPosition()`);
// We look further ahead in the line to ensure that pack was selected from package.lock
assert.deepEqual(line.substring(selectionPosition.start.x, selectionPosition.end.x + 8), 'package.lock');
await page.evaluate(`window.search.findNext('package.j', {incremental: true})`);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(line.substring(selectionPosition.start.x, selectionPosition.end.x + 3), 'package.json');
await page.evaluate(`window.search.findNext('package.jsonc', {incremental: true})`);
// We have to reevaluate line because it should have switched starting rows at this point
line = await page.evaluate(`window.term.buffer.active.getLine(window.term.getSelectionPosition().start.y).translateToString()`);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(line.substring(selectionPosition.start.x, selectionPosition.end.x), 'package.jsonc');
});
it('Simple Regex', async () => {
await writeSync(page, 'abc123defABCD');
await page.evaluate(`window.search.findNext('[a-z]+', {regex: true})`);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), 'abc');
await page.evaluate(`window.search.findNext('[A-Z]+', {regex: true, caseSensitive: true})`);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), 'ABCD');
});
it('Search for single result twice should not unselect it', async () => {
await writeSync(page, 'abc def');
assert.deepEqual(await page.evaluate(`window.search.findNext('abc')`), true);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), 'abc');
assert.deepEqual(await page.evaluate(`window.search.findNext('abc')`), true);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), 'abc');
});
it('Search for result bounding with wide unicode chars', async () => {
await writeSync(page, '中文xx𝄞𝄞');
assert.deepEqual(await page.evaluate(`window.search.findNext('中')`), true);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), '中');
assert.deepEqual(await page.evaluate(`window.search.findNext('xx')`), true);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), 'xx');
assert.deepEqual(await page.evaluate(`window.search.findNext('𝄞')`), true);
assert.deepEqual(await page.evaluate(`window.term.getSelection()`), '𝄞');
assert.deepEqual(await page.evaluate(`window.search.findNext('𝄞')`), true);
assert.deepEqual(await page.evaluate(`window.term.getSelectionPosition()`), {
start: {
x: 7,
y: 0
},
end: {
x: 8,
y: 0
}
});
});
describe('onDidChangeResults', async () => {
describe('findNext', () => {
it('should not fire unless the decorations option is set', async () => {
await page.evaluate(`
window.calls = [];
window.search.onDidChangeResults(e => window.calls.push(e));
`);
await writeSync(page, 'abc');
assert.strictEqual(await page.evaluate(`window.search.findNext('a')`), true);
assert.strictEqual(await page.evaluate('window.calls.length'), 0);
assert.strictEqual(await page.evaluate(`window.search.findNext('b', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.strictEqual(await page.evaluate('window.calls.length'), 1);
});
it('should fire with correct event values', async () => {
await page.evaluate(`
window.calls = [];
window.search.onDidChangeResults(e => window.calls.push(e));
`);
await writeSync(page, 'abc bc c');
assert.strictEqual(await page.evaluate(`window.search.findNext('a', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 1, resultIndex: 0 }
]);
assert.strictEqual(await page.evaluate(`window.search.findNext('b', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 1, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 }
]);
assert.strictEqual(await page.evaluate(`window.search.findNext('d', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), false);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 1, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 },
{ resultCount: 0, resultIndex: -1 }
]);
assert.strictEqual(await page.evaluate(`window.search.findNext('c', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.strictEqual(await page.evaluate(`window.search.findNext('c', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.strictEqual(await page.evaluate(`window.search.findNext('c', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 1, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 },
{ resultCount: 0, resultIndex: -1 },
{ resultCount: 3, resultIndex: 0 },
{ resultCount: 3, resultIndex: 1 },
{ resultCount: 3, resultIndex: 2 }
]);
});
it('should fire with correct event values (incremental)', async () => {
await page.evaluate(`
window.calls = [];
window.search.onDidChangeResults(e => window.calls.push(e));
`);
await writeSync(page, 'abc aabc');
assert.deepStrictEqual(await page.evaluate(`window.search.findNext('a', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 0 }
]);
assert.deepStrictEqual(await page.evaluate(`window.search.findNext('ab', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 }
]);
assert.deepStrictEqual(await page.evaluate(`window.search.findNext('abc', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 }
]);
assert.deepStrictEqual(await page.evaluate(`window.search.findNext('abc', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 },
{ resultCount: 2, resultIndex: 1 }
]);
assert.deepStrictEqual(await page.evaluate(`window.search.findNext('abcd', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), false);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 },
{ resultCount: 2, resultIndex: 0 },
{ resultCount: 2, resultIndex: 1 },
{ resultCount: 0, resultIndex: -1 }
]);
});
});
describe('findPrevious', () => {
it('should not fire unless the decorations option is set', async () => {
await page.evaluate(`
window.calls = [];
window.search.onDidChangeResults(e => window.calls.push(e));
`);
await writeSync(page, 'abc');
assert.strictEqual(await page.evaluate(`window.search.findPrevious('a')`), true);
assert.strictEqual(await page.evaluate('window.calls.length'), 0);
assert.strictEqual(await page.evaluate(`window.search.findPrevious('b', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.strictEqual(await page.evaluate('window.calls.length'), 1);
});
it('should fire with correct event values', async () => {
await page.evaluate(`
window.calls = [];
window.search.onDidChangeResults(e => window.calls.push(e));
`);
await writeSync(page, 'abc bc c');
assert.strictEqual(await page.evaluate(`window.search.findPrevious('a', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 1, resultIndex: 0 }
]);
assert.strictEqual(await page.evaluate(`window.search.findPrevious('b', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 1, resultIndex: 0 },
{ resultCount: 2, resultIndex: 1 }
]);
await timeout(2000);
assert.strictEqual(await page.evaluate(`debugger; window.search.findPrevious('d', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), false);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 1, resultIndex: 0 },
{ resultCount: 2, resultIndex: 1 },
{ resultCount: 0, resultIndex: -1 }
]);
assert.strictEqual(await page.evaluate(`window.search.findPrevious('c', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.strictEqual(await page.evaluate(`window.search.findPrevious('c', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.strictEqual(await page.evaluate(`window.search.findPrevious('c', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 1, resultIndex: 0 },
{ resultCount: 2, resultIndex: 1 },
{ resultCount: 0, resultIndex: -1 },
{ resultCount: 3, resultIndex: 2 },
{ resultCount: 3, resultIndex: 1 },
{ resultCount: 3, resultIndex: 0 }
]);
});
it('should fire with correct event values (incremental)', async () => {
await page.evaluate(`
window.calls = [];
window.search.onDidChangeResults(e => window.calls.push(e));
`);
await writeSync(page, 'abc aabc');
assert.deepStrictEqual(await page.evaluate(`window.search.findPrevious('a', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 2 }
]);
assert.deepStrictEqual(await page.evaluate(`window.search.findPrevious('ab', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 2 },
{ resultCount: 2, resultIndex: 1 }
]);
assert.deepStrictEqual(await page.evaluate(`window.search.findPrevious('abc', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 2 },
{ resultCount: 2, resultIndex: 1 },
{ resultCount: 2, resultIndex: 1 }
]);
assert.deepStrictEqual(await page.evaluate(`window.search.findPrevious('abc', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 2 },
{ resultCount: 2, resultIndex: 1 },
{ resultCount: 2, resultIndex: 1 },
{ resultCount: 2, resultIndex: 0 }
]);
assert.deepStrictEqual(await page.evaluate(`window.search.findPrevious('abcd', { incremental: true, decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), false);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 3, resultIndex: 2 },
{ resultCount: 2, resultIndex: 1 },
{ resultCount: 2, resultIndex: 1 },
{ resultCount: 2, resultIndex: 0 },
{ resultCount: 0, resultIndex: -1 }
]);
});
});
});
describe('Regression tests', () => {
describe('#2444 wrapped line content not being found', () => {
let fixture: string;
before(async () => {
const rawFixture = await new Promise<Buffer>(r => readFile(resolve(__dirname, '../fixtures/issue-2444'), (err, data) => r(data)));
if (process.platform === 'win32') {
fixture = rawFixture.toString()
.replace(/\n/g, '\\n')
.replace(/\r/g, '\\r');
} else {
fixture = rawFixture.toString()
.replace(/\n/g, '\\n\\r');
}
fixture = fixture
.replace(/'/g, `\\'`);
});
it('should find all occurrences using findNext', async () => {
await writeSync(page, fixture);
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
let selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 24, y: 53 }, end: { x: 30, y: 53 } });
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 24, y: 76 }, end: { x: 30, y: 76 } });
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 24, y: 96 }, end: { x: 30, y: 96 } });
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 1, y: 114 }, end: { x: 7, y: 114 } });
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 11, y: 115 }, end: { x: 17, y: 115 } });
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 1, y: 126 }, end: { x: 7, y: 126 } });
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 11, y: 127 }, end: { x: 17, y: 127 } });
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 1, y: 135 }, end: { x: 7, y: 135 } });
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 11, y: 136 }, end: { x: 17, y: 136 } });
// Wrap around to first result
assert.deepEqual(await page.evaluate(`window.search.findNext('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 24, y: 53 }, end: { x: 30, y: 53 } });
});
it('should y all occurrences using findPrevious', async () => {
await writeSync(page, fixture);
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
let selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 11, y: 136 }, end: { x: 17, y: 136 } });
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 1, y: 135 }, end: { x: 7, y: 135 } });
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 11, y: 127 }, end: { x: 17, y: 127 } });
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 1, y: 126 }, end: { x: 7, y: 126 } });
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 11, y: 115 }, end: { x: 17, y: 115 } });
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 1, y: 114 }, end: { x: 7, y: 114 } });
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 24, y: 96 }, end: { x: 30, y: 96 } });
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 24, y: 76 }, end: { x: 30, y: 76 } });
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 24, y: 53 }, end: { x: 30, y: 53 } });
// Wrap around to first result
assert.deepEqual(await page.evaluate(`window.search.findPrevious('opencv')`), true);
selectionPosition = await page.evaluate(`window.term.getSelectionPosition()`);
assert.deepEqual(selectionPosition, { start: { x: 11, y: 136 }, end: { x: 17, y: 136 } });
});
});
});
describe('#3834 lines with null characters before search terms', () => {
// This case can be triggered by the prompt when using starship under conpty
it('should find all matches on a line containing null characters', async () => {
await page.evaluate(`
window.calls = [];
window.search.onDidChangeResults(e => window.calls.push(e));
`);
// Move cursor forward 1 time to create a null character, as opposed to regular whitespace
await writeSync(page, '\\x1b[CHi Hi');
assert.strictEqual(await page.evaluate(`window.search.findPrevious('h', { decorations: { activeMatchColorOverviewRuler: '#ff0000' } })`), true);
assert.deepStrictEqual(await page.evaluate('window.calls'), [
{ resultCount: 2, resultIndex: 1 }
]);
});
});
});
function makeData(length: number): string {
let result = '';
const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
for (let i = 0; i < length; i++) {
result += characters.charAt(Math.floor(Math.random() * characters.length));
}
return result;
}

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