Adds timeline view & api providers (wip) — #84297

src/vs/workbench/api/common/extHostTimeline.ts

@@ -0,0 +1,80 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+import { UriComponents, URI } from 'vs/base/common/uri';
+import { createDecorator } from 'vs/platform/instantiation/common/instantiation';
+import { ExtHostTimelineShape, MainThreadTimelineShape, IMainContext, MainContext } from 'vs/workbench/api/common/extHost.protocol';
+import { TimelineItem, TimelineProvider, toKey } from 'vs/workbench/contrib/timeline/common/timeline';
+import { IDisposable, toDisposable } from 'vs/base/common/lifecycle';
+import { ExtensionIdentifier } from 'vs/platform/extensions/common/extensions';
+
+export interface IExtHostTimeline extends ExtHostTimelineShape {
+	readonly _serviceBrand: undefined;
+	$getTimeline(key: string, uri: UriComponents, since: number, token: vscode.CancellationToken): Promise<TimelineItem[]>;
+}
+
+export const IExtHostTimeline = createDecorator<IExtHostTimeline>('IExtHostTimeline');
+
+export class ExtHostTimeline implements IExtHostTimeline {
+	_serviceBrand: undefined;
+
+	private _proxy: MainThreadTimelineShape;
+
+	private _providers = new Map<string, TimelineProvider>();
+
+	constructor(
+		mainContext: IMainContext,
+
+	) {
+		this._proxy = mainContext.getProxy(MainContext.MainThreadTimeline);
+
+		this.registerTimelineProvider('bar', {
+			id: 'baz',
+			async provideTimeline(uri: URI, since: number, token: vscode.CancellationToken) {
+				return [
+					{
+						id: '1',
+						label: 'Bar Timeline1',
+						description: uri.toString(true),
+						detail: new Date().toString(),
+						date: Date.now(),
+						source: 'log'
+					},
+					{
+						id: '2',
+						label: 'Bar Timeline2',
+						description: uri.toString(true),
+						detail: new Date(Date.now() - 100).toString(),
+						date: Date.now() - 100,
+						source: 'log'
+					}
+				];
+			}
+		});
+	}
+
+	async $getTimeline(key: string, uri: UriComponents, since: number, token: vscode.CancellationToken): Promise<TimelineItem[]> {
+		const provider = this._providers.get(key);
+		return provider?.provideTimeline(URI.revive(uri), since, token) ?? [];
+	}
+
+	registerTimelineProvider(extension: ExtensionIdentifier | string, provider: TimelineProvider): IDisposable {
+		console.log(`ExtHostTimeline#registerTimelineProvider: extension=${extension.toString()}, provider=${provider.id}`);
+
+		const key = toKey(extension, provider.id);
+		if (this._providers.has(key)) {
+			throw new Error(`Timeline Provider ${key} already exists.`);
+		}
+
+		this._proxy.$registerTimelineProvider(key, provider.id);
+		this._providers.set(key, provider);
+
+		return toDisposable(() => {
+			this._providers.delete(key);
+			this._proxy.$unregisterTimelineProvider(key);
+		});
+	}
+}