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Tweak handling of _contextRestorationTimeout

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This commit is contained in:
Daniel Imms
2022-08-31 05:44:48 -07:00
committed by GitHub
parent 9459553665
commit f309affff2
1 changed files with 6 additions and 8 deletions
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addons/xterm-addon-webgl/src/WebglRenderer.ts
+6 -8
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@@ -53,6 +53,7 @@ export class WebglRenderer extends Disposable implements IRenderer {
private _core: ITerminal;
private _isAttached: boolean;
private _contextRestorationTimeout: number | undefined;
private _onChangeTextureAtlas = new EventEmitter<HTMLCanvasElement>();
public get onChangeTextureAtlas(): IEvent<HTMLCanvasElement> { return this._onChangeTextureAtlas.event; }
@@ -62,8 +63,6 @@ export class WebglRenderer extends Disposable implements IRenderer {
private _onContextLoss = new EventEmitter<void>();
public get onContextLoss(): IEvent<void> { return this._onContextLoss.event; }
private _contextRestorationTimeout: number | undefined;
constructor(
private _terminal: Terminal,
private _colors: IColorSet,
@@ -117,16 +116,15 @@ export class WebglRenderer extends Disposable implements IRenderer {
// Wait a few seconds to see if the 'webglcontextrestored' event is fired.
// If not, dispatch the onContextLoss notification to observers.
this._contextRestorationTimeout = setTimeout(() => {
if (this._contextRestorationTimeout !== 0) {
console.log('webgl context not restored; firing onContextLoss');
this._onContextLoss.fire(e);
}
this._contextRestorationTimeout = undefined;
console.warn('webgl context not restored; firing onContextLoss');
this._onContextLoss.fire(e);
}, 3000 /* ms */);
}));
this.register(addDisposableDomListener(this._canvas, 'webglcontextrestored', (e) => {
console.log('webglcontextrestored event received');
console.warn('webglcontextrestored event received');
clearTimeout(this._contextRestorationTimeout);
this._contextRestorationTimeout = 0;
this._contextRestorationTimeout = undefined;
// The texture atlas and glyph renderer must be fully reinitialized
// because their contents have been lost.
removeTerminalFromCache(this._terminal);