44 lines
1.7 KiB
TypeScript
44 lines
1.7 KiB
TypeScript
/**
|
|
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
|
|
* @license MIT
|
|
*/
|
|
|
|
import { Terminal } from 'xterm';
|
|
import { IWinptyCompatAddonTerminal } from './Interfaces';
|
|
|
|
const CHAR_DATA_CODE_INDEX = 3;
|
|
const NULL_CELL_CODE = 0;
|
|
const WHITESPACE_CELL_CODE = 32;
|
|
|
|
export function winptyCompatInit(terminal: Terminal): void {
|
|
const addonTerminal = <IWinptyCompatAddonTerminal>terminal;
|
|
|
|
(addonTerminal._core as any).isWinptyCompatEnabled = true;
|
|
|
|
// Winpty does not support wraparound mode which means that lines will never
|
|
// be marked as wrapped. This causes issues for things like copying a line
|
|
// retaining the wrapped new line characters or if consumers are listening
|
|
// in on the data stream.
|
|
//
|
|
// The workaround for this is to listen to every incoming line feed and mark
|
|
// the line as wrapped if the last character in the previous line is not a
|
|
// space. This is certainly not without its problems, but generally on
|
|
// Windows when text reaches the end of the terminal it's likely going to be
|
|
// wrapped.
|
|
addonTerminal.on('linefeed', () => {
|
|
const line = addonTerminal._core.buffer.lines.get(addonTerminal._core.buffer.ybase + addonTerminal._core.buffer.y - 1);
|
|
const lastChar = line.get(addonTerminal.cols - 1);
|
|
|
|
if (lastChar[CHAR_DATA_CODE_INDEX] !== NULL_CELL_CODE && lastChar[CHAR_DATA_CODE_INDEX] !== WHITESPACE_CELL_CODE) {
|
|
const nextLine = addonTerminal._core.buffer.lines.get(addonTerminal._core.buffer.ybase + addonTerminal._core.buffer.y);
|
|
nextLine.isWrapped = true;
|
|
}
|
|
});
|
|
}
|
|
|
|
export function apply(terminalConstructor: typeof Terminal): void {
|
|
(<any>terminalConstructor.prototype).winptyCompatInit = function (): void {
|
|
winptyCompatInit(this);
|
|
};
|
|
}
|