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Reduce state in buffer decorations

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This commit is contained in:
Daniel Imms
2022-03-14 15:48:09 -07:00
parent c8d1266f0a
commit 4b615f48ff
5 changed files with 55 additions and 127 deletions
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src/browser/Decorations/OverviewRulerRenderer.ts
+4 -4
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@@ -4,17 +4,17 @@
*--------------------------------------------------------------------------------------------*/
import { addDisposableDomListener } from 'browser/Lifecycle';
import { IDecorationRenderer } from 'browser/Decorations/BufferDecorationRenderer';
import { IRenderService } from 'browser/services/Services';
import { EventEmitter, IEvent } from 'common/EventEmitter';
import { Disposable } from 'common/Lifecycle';
import { IBufferService, IDecorationService, IInstantiationService, IInternalDecoration } from 'common/services/Services';
import { IDecorationOptions, IDecoration, IMarker } from 'xterm';
const enum ScrollbarConstants {
WIDTH = 7
}
export class OverviewRulerRenderer extends Disposable implements IDecorationRenderer {
export class OverviewRulerRenderer extends Disposable {
private _canvas: HTMLCanvasElement;
private _ctx: CanvasRenderingContext2D | null;
private _decorations: ScrollbarDecoration[] = [];
@@ -42,10 +42,10 @@ export class OverviewRulerRenderer extends Disposable implements IDecorationRend
this.register(this._renderService.onRenderedBufferChange(() => this.refreshDecorations()));
this.register(this._renderService.onDimensionsChange(() => this.refreshDecorations()));
this.register(addDisposableDomListener(window, 'resize', () => this.refreshDecorations()));
this.register(this._decorationService.onDecorationRegistered(e => this.renderDecoration(e)));
this.register(this._decorationService.onDecorationRegistered(e => this.registerDecoration(e)));
this.register(this._decorationService.onDecorationRemoved(d => d.dispose()));
}
public renderDecoration(decoration: IInternalDecoration): void {
public registerDecoration(decoration: IInternalDecoration): void {
if (!this._ctx || !decoration.options.overviewRulerItemColor) {
return;
}