/
timeline.ts
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/
timeline.ts
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// *****************************************************************************
// Copyright (C) 2019 Red Hat, Inc. and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// http://www.eclipse.org/legal/epl-2.0.
//
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
// with the GNU Classpath Exception which is available at
// https://www.gnu.org/software/classpath/license.html.
//
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
// *****************************************************************************
import { Plugin, PLUGIN_RPC_CONTEXT, TimelineCommandArg, TimelineExt, TimelineMain } from '../common';
import { RPCProtocol } from '../common/rpc-protocol';
import { Disposable, URI } from './types-impl';
import { DisposableCollection } from '@theia/core/lib/common/disposable';
import { CommandRegistryImpl } from './command-registry';
import type {
InternalTimelineOptions,
Timeline,
TimelineItem,
TimelineOptions,
TimelineProvider
} from '@theia/timeline/lib/common/timeline-model';
import * as theia from '@theia/plugin';
import { CancellationToken } from '@theia/core/lib/common/cancellation';
import { UriComponents } from '../common/uri-components';
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
// copied and modified from https://github.com/microsoft/theia/blob/afacd2bdfe7060f09df9b9139521718915949757/src/vs/workbench/api/common/extHostTimeline.ts
export class TimelineExtImpl implements TimelineExt {
declare readonly _serviceBrand: undefined;
private readonly proxy: TimelineMain;
private providers = new Map<string, TimelineProvider>();
private itemsBySourceAndUriMap = new Map<string, Map<string | undefined, Map<string, theia.TimelineItem>>>();
constructor(readonly rpc: RPCProtocol, private readonly commands: CommandRegistryImpl) {
this.proxy = rpc.getProxy(PLUGIN_RPC_CONTEXT.TIMELINE_MAIN);
commands.registerArgumentProcessor({
processArgument: arg => {
if (!TimelineCommandArg.is(arg)) {
return arg;
} else {
return this.itemsBySourceAndUriMap.get(arg.source)?.get(arg.uri?.toString())?.get(arg.timelineHandle);
}
}
});
}
async $getTimeline(id: string, uri: UriComponents, options: theia.TimelineOptions, internalOptions?: InternalTimelineOptions): Promise<Timeline | undefined> {
const provider = this.providers.get(id);
return provider?.provideTimeline(URI.revive(uri), options, internalOptions);
}
registerTimelineProvider(plugin: Plugin, scheme: string | string[], provider: theia.TimelineProvider): Disposable {
const timelineDisposables = new DisposableCollection();
const convertTimelineItem = this.convertTimelineItem(provider.id, timelineDisposables).bind(this);
let disposable: Disposable | undefined;
if (provider.onDidChange) {
disposable = Disposable.from(provider.onDidChange(e => this.proxy.$fireTimelineChanged({ uri: undefined, reset: true, ...e, id: provider.id }), this));
}
const itemsBySourceAndUriMap = this.itemsBySourceAndUriMap;
return this.registerTimelineProviderCore({
...provider,
scheme: scheme,
onDidChange: undefined,
async provideTimeline(uri: URI, options: TimelineOptions, internalOptions?: InternalTimelineOptions): Promise<Timeline | undefined> {
if (internalOptions?.resetCache) {
timelineDisposables.dispose();
const items = itemsBySourceAndUriMap.get(provider.id);
if (items) {
items.clear();
}
}
const result = await provider.provideTimeline(uri, options, CancellationToken.None);
if (!result) {
return undefined;
}
const convertItem = convertTimelineItem(uri, internalOptions);
return {
...result,
source: provider.id,
items: result.items.map(convertItem)
};
},
dispose(): void {
for (const sourceMap of itemsBySourceAndUriMap.values()) {
const source = sourceMap.get(provider.id);
if (source) {
source.clear();
}
}
if (disposable) {
disposable.dispose();
}
timelineDisposables.dispose();
}
});
}
private convertTimelineItem(source: string, disposables: DisposableCollection): (uri: URI, options?: InternalTimelineOptions) => (item: theia.TimelineItem) => TimelineItem {
return (uri: URI, options?: InternalTimelineOptions) => {
let items: Map<string, theia.TimelineItem> | undefined;
if (options?.cacheResults) {
let itemsByUri = this.itemsBySourceAndUriMap.get(source);
if (itemsByUri === undefined) {
itemsByUri = new Map();
this.itemsBySourceAndUriMap.set(source, itemsByUri);
}
const uriKey = getUriKey(uri);
items = itemsByUri.get(uriKey);
if (items === undefined) {
items = new Map();
itemsByUri.set(uriKey, items);
}
}
return (item: theia.TimelineItem): TimelineItem => {
const { iconPath, ...props } = item;
const handle = `${source}|${item.id ?? item.timestamp}`;
if (items) {
items.set(handle, item);
}
return {
...props,
uri: uri.toString(),
id: props.id ?? undefined,
handle: handle,
source: source,
command: item.command ? this.commands.converter.toSafeCommand(item.command, disposables) : undefined,
};
};
};
}
private registerTimelineProviderCore(provider: TimelineProvider): Disposable {
const existing = this.providers.get(provider.id);
if (existing) {
throw new Error(`Timeline Provider ${provider.id} already exists.`);
}
this.proxy.$registerTimelineProvider({
id: provider.id,
label: provider.label,
scheme: provider.scheme
});
this.providers.set(provider.id, provider);
return Disposable.create(() => {
for (const sourceMap of this.itemsBySourceAndUriMap.values()) {
const items = sourceMap.get(provider.id);
if (items) {
items.clear();
}
}
this.providers.delete(provider.id);
this.proxy.$unregisterTimelineProvider(provider.id);
provider.dispose();
});
}
}
function getUriKey(uri: URI | undefined): string | undefined {
return uri?.toString();
}