Daniel Imms
bdb438972f
This was mostly ! to compel TS, we should actually fix this down the road but that can come later.
75 lines
2.6 KiB
TypeScript
75 lines
2.6 KiB
TypeScript
/**
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* Copyright (c) 2017 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import { Terminal } from 'xterm';
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import { BaseRenderLayer } from './BaseRenderLayer';
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import { INVERTED_DEFAULT_COLOR } from 'browser/renderer/atlas/Constants';
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import { is256Color } from '../atlas/CharAtlasUtils';
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import { ITerminal, IColorSet, ILinkifierEvent } from 'browser/Types';
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import { IRenderDimensions } from 'browser/renderer/Types';
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export class LinkRenderLayer extends BaseRenderLayer {
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private _state: ILinkifierEvent | undefined;
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constructor(container: HTMLElement, zIndex: number, colors: IColorSet, terminal: ITerminal) {
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super(container, 'link', zIndex, true, colors);
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terminal.linkifier.onShowLinkUnderline(e => this._onShowLinkUnderline(e));
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terminal.linkifier.onHideLinkUnderline(e => this._onHideLinkUnderline(e));
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terminal.linkifier2.onShowLinkUnderline(e => this._onShowLinkUnderline(e));
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terminal.linkifier2.onHideLinkUnderline(e => this._onHideLinkUnderline(e));
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}
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public resize(terminal: Terminal, dim: IRenderDimensions): void {
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super.resize(terminal, dim);
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// Resizing the canvas discards the contents of the canvas so clear state
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this._state = undefined;
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}
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public reset(terminal: Terminal): void {
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this._clearCurrentLink();
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}
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private _clearCurrentLink(): void {
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if (this._state) {
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this._clearCells(this._state.x1, this._state.y1, this._state.cols - this._state.x1, 1);
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const middleRowCount = this._state.y2 - this._state.y1 - 1;
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if (middleRowCount > 0) {
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this._clearCells(0, this._state.y1 + 1, this._state.cols, middleRowCount);
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}
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this._clearCells(0, this._state.y2, this._state.x2, 1);
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this._state = undefined;
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}
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}
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private _onShowLinkUnderline(e: ILinkifierEvent): void {
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if (e.fg === INVERTED_DEFAULT_COLOR) {
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this._ctx.fillStyle = this._colors.background.css;
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} else if (e.fg !== undefined && is256Color(e.fg)) {
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// 256 color support
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this._ctx.fillStyle = this._colors.ansi[e.fg!].css;
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} else {
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this._ctx.fillStyle = this._colors.foreground.css;
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}
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if (e.y1 === e.y2) {
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// Single line link
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this._fillBottomLineAtCells(e.x1, e.y1, e.x2 - e.x1);
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} else {
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// Multi-line link
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this._fillBottomLineAtCells(e.x1, e.y1, e.cols - e.x1);
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for (let y = e.y1 + 1; y < e.y2; y++) {
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this._fillBottomLineAtCells(0, y, e.cols);
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}
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this._fillBottomLineAtCells(0, e.y2, e.x2);
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}
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this._state = e;
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}
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private _onHideLinkUnderline(e: ILinkifierEvent): void {
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this._clearCurrentLink();
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}
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}
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