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74 lines
3.4 KiB
Plaintext
74 lines
3.4 KiB
Plaintext
/**
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* Copyright (c) 2022 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import type { ITerminalAddon, Terminal } from '@xterm/xterm';
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import type { CanvasAddon as ICanvasApi } from '@xterm/addon-canvas';
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import { ICharacterJoinerService, ICharSizeService, ICoreBrowserService, IRenderService, IThemeService } from 'browser/services/Services';
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import { ITerminal } from 'browser/Types';
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import { EventEmitter, forwardEvent } from 'common/EventEmitter';
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import { Disposable, toDisposable } from 'common/Lifecycle';
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import { setTraceLogger } from 'common/services/LogService';
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import { IBufferService, IDecorationService, ILogService } from 'common/services/Services';
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import { CanvasRenderer } from './CanvasRenderer';
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export class CanvasAddon extends Disposable implements ITerminalAddon , ICanvasApi {
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private _terminal?: Terminal;
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private _renderer?: CanvasRenderer;
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private readonly _onChangeTextureAtlas = this.register(new EventEmitter<HTMLCanvasElement>());
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public readonly onChangeTextureAtlas = this._onChangeTextureAtlas.event;
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private readonly _onAddTextureAtlasCanvas = this.register(new EventEmitter<HTMLCanvasElement>());
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public readonly onAddTextureAtlasCanvas = this._onAddTextureAtlasCanvas.event;
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public get textureAtlas(): HTMLCanvasElement | undefined {
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return this._renderer?.textureAtlas;
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}
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public activate(terminal: Terminal): void {
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const core = (terminal as any)._core as ITerminal;
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if (!terminal.element) {
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this.register(core.onWillOpen(() => this.activate(terminal)));
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return;
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}
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this._terminal = terminal;
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const coreService = core.coreService;
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const optionsService = core.optionsService;
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const screenElement = core.screenElement!;
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const linkifier = core.linkifier!;
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const unsafeCore = core as any;
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const bufferService: IBufferService = unsafeCore._bufferService;
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const renderService: IRenderService = unsafeCore._renderService;
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const characterJoinerService: ICharacterJoinerService = unsafeCore._characterJoinerService;
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const charSizeService: ICharSizeService = unsafeCore._charSizeService;
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const coreBrowserService: ICoreBrowserService = unsafeCore._coreBrowserService;
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const decorationService: IDecorationService = unsafeCore._decorationService;
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const logService: ILogService = unsafeCore._logService;
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const themeService: IThemeService = unsafeCore._themeService;
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// Set trace logger just in case it hasn't been yet which could happen when the addon is
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// bundled separately to the core module
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setTraceLogger(logService);
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this._renderer = new CanvasRenderer(terminal, screenElement, linkifier, bufferService, charSizeService, optionsService, characterJoinerService, coreService, coreBrowserService, decorationService, themeService);
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this.register(forwardEvent(this._renderer.onChangeTextureAtlas, this._onChangeTextureAtlas));
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this.register(forwardEvent(this._renderer.onAddTextureAtlasCanvas, this._onAddTextureAtlasCanvas));
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renderService.setRenderer(this._renderer);
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renderService.handleResize(bufferService.cols, bufferService.rows);
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this.register(toDisposable(() => {
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renderService.setRenderer((this._terminal as any)._core._createRenderer());
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renderService.handleResize(terminal.cols, terminal.rows);
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this._renderer?.dispose();
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this._renderer = undefined;
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}));
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}
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public clearTextureAtlas(): void {
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this._renderer?.clearTextureAtlas();
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}
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}
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