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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { CancellationTokenSource } from 'vs/base/common/cancellation';
import { Event, Emitter } from 'vs/base/common/event';
import { IDisposable } from 'vs/base/common/lifecycle';
import { URI } from 'vs/base/common/uri';
import { ILogService } from 'vs/platform/log/common/log';
import { ITimelineService, TimelineChangeEvent, TimelineOptions, TimelineProvidersChangeEvent, TimelineProvider, TimelinePaneId } from './timeline';
import { IViewsService } from 'vs/workbench/common/views';
import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
import { IContextKey, IContextKeyService, RawContextKey } from 'vs/platform/contextkey/common/contextkey';
export const TimelineHasProviderContext = new RawContextKey<boolean>('timelineHasProvider', false);
export class TimelineService implements ITimelineService {
declare readonly _serviceBrand: undefined;
private readonly _onDidChangeProviders = new Emitter<TimelineProvidersChangeEvent>();
readonly onDidChangeProviders: Event<TimelineProvidersChangeEvent> = this._onDidChangeProviders.event;
private readonly _onDidChangeTimeline = new Emitter<TimelineChangeEvent>();
readonly onDidChangeTimeline: Event<TimelineChangeEvent> = this._onDidChangeTimeline.event;
private readonly _onDidChangeUri = new Emitter<URI>();
readonly onDidChangeUri: Event<URI> = this._onDidChangeUri.event;
private readonly hasProviderContext: IContextKey<boolean>;
private readonly providers = new Map<string, TimelineProvider>();
private readonly providerSubscriptions = new Map<string, IDisposable>();
constructor(
@ILogService private readonly logService: ILogService,
@IViewsService protected viewsService: IViewsService,
@IConfigurationService protected configurationService: IConfigurationService,
@IContextKeyService protected contextKeyService: IContextKeyService,
) {
this.hasProviderContext = TimelineHasProviderContext.bindTo(this.contextKeyService);
this.updateHasProviderContext();
}
getSources() {
return [...this.providers.values()].map(p => ({ id: p.id, label: p.label }));
}
getTimeline(id: string, uri: URI, options: TimelineOptions, tokenSource: CancellationTokenSource) {
this.logService.trace(`TimelineService#getTimeline(${id}): uri=${uri.toString()}`);
const provider = this.providers.get(id);
if (provider === undefined) {
return undefined;
}
if (typeof provider.scheme === 'string') {
if (provider.scheme !== '*' && provider.scheme !== uri.scheme) {
return undefined;
}
} else if (!provider.scheme.includes(uri.scheme)) {
return undefined;
}
return {
result: provider.provideTimeline(uri, options, tokenSource.token)
.then(result => {
if (result === undefined) {
return undefined;
}
result.items = result.items.map(item => ({ ...item, source: provider.id }));
result.items.sort((a, b) => (b.timestamp - a.timestamp) || b.source.localeCompare(a.source, undefined, { numeric: true, sensitivity: 'base' }));
return result;
}),
options: options,
source: provider.id,
tokenSource: tokenSource,
uri: uri
};
}
registerTimelineProvider(provider: TimelineProvider): IDisposable {
this.logService.trace(`TimelineService#registerTimelineProvider: id=${provider.id}`);
const id = provider.id;
const existing = this.providers.get(id);
if (existing) {
// For now to deal with https://github.com/microsoft/vscode/issues/89553 allow any overwritting here (still will be blocked in the Extension Host)
// TODO@eamodio: Ultimately will need to figure out a way to unregister providers when the Extension Host restarts/crashes
// throw new Error(`Timeline Provider ${id} already exists.`);
try {
existing?.dispose();
}
catch { }
}
this.providers.set(id, provider);
this.updateHasProviderContext();
if (provider.onDidChange) {
this.providerSubscriptions.set(id, provider.onDidChange(e => this._onDidChangeTimeline.fire(e)));
}
this._onDidChangeProviders.fire({ added: [id] });
return {
dispose: () => {
this.providers.delete(id);
this._onDidChangeProviders.fire({ removed: [id] });
}
};
}
unregisterTimelineProvider(id: string): void {
this.logService.trace(`TimelineService#unregisterTimelineProvider: id=${id}`);
if (!this.providers.has(id)) {
return;
}
this.providers.delete(id);
this.providerSubscriptions.delete(id);
this.updateHasProviderContext();
this._onDidChangeProviders.fire({ removed: [id] });
}
setUri(uri: URI) {
this.viewsService.openView(TimelinePaneId, true);
this._onDidChangeUri.fire(uri);
}
private updateHasProviderContext() {
this.hasProviderContext.set(this.providers.size !== 0);
}
}
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