add 'vscode.executeLinkProvider' command

src/vs/editor/common/services/editorWorkerService.ts

@@ -8,7 +8,7 @@ import URI from 'vs/base/common/uri';
 import {TPromise} from 'vs/base/common/winjs.base';
 import {createDecorator} from 'vs/platform/instantiation/common/instantiation';
 import {IChange, ILineChange, IPosition, IRange} from 'vs/editor/common/editorCommon';
-import {IInplaceReplaceSupportResult, ILink, ISuggestResult} from 'vs/editor/common/modes';
+import {IInplaceReplaceSupportResult, ISuggestResult} from 'vs/editor/common/modes';
 
 export var ID_EDITOR_WORKER_SERVICE = 'editorWorkerService';
 export var IEditorWorkerService = createDecorator<IEditorWorkerService>(ID_EDITOR_WORKER_SERVICE);
@@ -18,7 +18,6 @@ export interface IEditorWorkerService {
 
 	computeDiff(original:URI, modified:URI, ignoreTrimWhitespace:boolean):TPromise<ILineChange[]>;
 	computeDirtyDiff(original:URI, modified:URI, ignoreTrimWhitespace:boolean):TPromise<IChange[]>;
-	computeLinks(resource:URI):TPromise<ILink[]>;
 	textualSuggest(resource: URI, position: IPosition): TPromise<ISuggestResult[]>;
 	navigateValueSet(resource: URI, range:IRange, up:boolean): TPromise<IInplaceReplaceSupportResult>;
 }

src/vs/editor/common/services/editorWorkerServiceImpl.ts

@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 'use strict';
 
-import {IntervalTimer, ShallowCancelThenPromise} from 'vs/base/common/async';
+import {IntervalTimer, ShallowCancelThenPromise, wireCancellationToken} from 'vs/base/common/async';
 import {Disposable, IDisposable, dispose} from 'vs/base/common/lifecycle';
 import URI from 'vs/base/common/uri';
 import {TPromise} from 'vs/base/common/winjs.base';
@@ -12,7 +12,7 @@ import {SimpleWorkerClient} from 'vs/base/common/worker/simpleWorker';
 import {DefaultWorkerFactory} from 'vs/base/worker/defaultWorkerFactory';
 import * as editorCommon from 'vs/editor/common/editorCommon';
 import {WordHelper} from 'vs/editor/common/model/textModelWithTokensHelpers';
-import {IInplaceReplaceSupportResult, ILink, ISuggestResult} from 'vs/editor/common/modes';
+import {IInplaceReplaceSupportResult, ILink, ISuggestResult, LinkProviderRegistry, LinkProvider} from 'vs/editor/common/modes';
 import {IEditorWorkerService} from 'vs/editor/common/services/editorWorkerService';
 import {IModelService} from 'vs/editor/common/services/modelService';
 import {EditorSimpleWorkerImpl} from 'vs/editor/common/services/editorSimpleWorker';
@@ -31,10 +31,23 @@ const STOP_WORKER_DELTA_TIME_MS = 5 * 60 * 1000;
 export class EditorWorkerServiceImpl implements IEditorWorkerService {
 	public _serviceBrand: any;
 
-	private _workerManager:WorkerManager;
+	private _workerManager: WorkerManager;
+	private _registration: IDisposable;
 
 	constructor(@IModelService modelService:IModelService) {
 		this._workerManager = new WorkerManager(modelService);
+
+		// todo@joh make sure this happens only once
+		this._registration = LinkProviderRegistry.register('*', <LinkProvider>{
+			provideLinks: (model, token) => {
+				return wireCancellationToken(token, this._workerManager.withWorker().then(client => client.computeLinks(model.uri)));
+			}
+		});
+	}
+
+	public dispose(): void {
+		this._workerManager.dispose();
+		this._registration.dispose();
 	}
 
 	public computeDiff(original:URI, modified:URI, ignoreTrimWhitespace:boolean):TPromise<editorCommon.ILineChange[]> {
@@ -45,10 +58,6 @@ export class EditorWorkerServiceImpl implements IEditorWorkerService {
 		return this._workerManager.withWorker().then(client => client.computeDirtyDiff(original, modified, ignoreTrimWhitespace));
 	}
 
-	public computeLinks(resource:URI):TPromise<ILink[]> {
-		return this._workerManager.withWorker().then(client => client.computeLinks(resource));
-	}
-
 	public textualSuggest(resource: URI, position: editorCommon.IPosition): TPromise<ISuggestResult[]> {
 		return this._workerManager.withWorker().then(client => client.textualSuggest(resource, position));
 	}

src/vs/editor/contrib/links/browser/links.ts

@@ -16,7 +16,6 @@ import {TPromise} from 'vs/base/common/winjs.base';
 import {IKeyboardEvent} from 'vs/base/browser/keyboardEvent';
 import {IEditorService, IResourceInput} from 'vs/platform/editor/common/editor';
 import {IMessageService} from 'vs/platform/message/common/message';
-import {Range} from 'vs/editor/common/core/range';
 import {EditorAction} from 'vs/editor/common/editorAction';
 import {Behaviour} from 'vs/editor/common/editorActionEnablement';
 import * as editorCommon from 'vs/editor/common/editorCommon';
@@ -75,16 +74,6 @@ class LinkOccurence {
 	}
 }
 
-class Link {
-	range: Range;
-	url: string;
-
-	constructor(source:ILink) {
-		this.range = new Range(source.range.startLineNumber, source.range.startColumn, source.range.endLineNumber, source.range.endColumn);
-		this.url = source.url;
-	}
-}
-
 class LinkDetector implements editorCommon.IEditorContribution {
 
 	public static ID: string = 'editor.linkDetector';
@@ -102,7 +91,7 @@ class LinkDetector implements editorCommon.IEditorContribution {
 	private editor:ICodeEditor;
 	private listenersToRemove:IDisposable[];
 	private timeoutPromise:TPromise<void>;
-	private computePromise:TPromise<ILink[]>;
+	private computePromise:TPromise<void>;
 	private activeLinkDecorationId:string;
 	private lastMouseEvent:IEditorMouseEvent;
 	private editorService:IEditorService;
@@ -172,75 +161,16 @@ class LinkDetector implements editorCommon.IEditorContribution {
 			return;
 		}
 
-		let modePromise:TPromise<ILink[]> = TPromise.as(null);
-		if (LinkProviderRegistry.has(this.editor.getModel())) {
-			modePromise = getLinks(this.editor.getModel());
+		if (!LinkProviderRegistry.has(this.editor.getModel())) {
+			return;
 		}
 
-		let standardPromise:TPromise<ILink[]> = this.editorWorkerService.computeLinks(this.editor.getModel().uri);
-
-		this.computePromise = TPromise.join([modePromise, standardPromise]).then((r) => {
-			let a = r[0];
-			let b = r[1];
-			if (!a || a.length === 0) {
-				return b || [];
-			}
-			if (!b || b.length === 0) {
-				return a || [];
-			}
-			return LinkDetector._linksUnion(a.map(el => new Link(el)), b.map(el => new Link(el)));
-		});
-
-		this.computePromise.then((links:ILink[]) => {
+		this.computePromise = getLinks(this.editor.getModel()).then(links => {
 			this.updateDecorations(links);
 			this.computePromise = null;
 		});
 	}
 
-	private static _linksUnion(oldLinks: Link[], newLinks: Link[]): Link[] {
-		// reunite oldLinks with newLinks and remove duplicates
-		var result: Link[] = [],
-			oldIndex: number,
-			oldLen: number,
-			newIndex: number,
-			newLen: number,
-			oldLink: Link,
-			newLink: Link,
-			comparisonResult: number;
-
-		for (oldIndex = 0, newIndex = 0, oldLen = oldLinks.length, newLen = newLinks.length; oldIndex < oldLen && newIndex < newLen;) {
-			oldLink = oldLinks[oldIndex];
-			newLink = newLinks[newIndex];
-
-			if (Range.areIntersectingOrTouching(oldLink.range, newLink.range)) {
-				// Remove the oldLink
-				oldIndex++;
-				continue;
-			}
-
-			comparisonResult = Range.compareRangesUsingStarts(oldLink.range, newLink.range);
-
-			if (comparisonResult < 0) {
-				// oldLink is before
-				result.push(oldLink);
-				oldIndex++;
-			} else {
-				// newLink is before
-				result.push(newLink);
-				newIndex++;
-			}
-		}
-
-		for (; oldIndex < oldLen; oldIndex++) {
-			result.push(oldLinks[oldIndex]);
-		}
-		for (; newIndex < newLen; newIndex++) {
-			result.push(newLinks[newIndex]);
-		}
-
-		return result;
-	}
-
 	private updateDecorations(links:ILink[]):void {
 		this.editor.changeDecorations((changeAccessor:editorCommon.IModelDecorationsChangeAccessor) => {
 			var oldDecorations:string[] = [];

src/vs/editor/contrib/links/common/links.ts

@@ -6,32 +6,88 @@
 'use strict';
 
 import {onUnexpectedError} from 'vs/base/common/errors';
+import URI from 'vs/base/common/uri';
 import {TPromise} from 'vs/base/common/winjs.base';
+import {Range} from 'vs/editor/common/core/range';
 import {IReadOnlyModel} from 'vs/editor/common/editorCommon';
 import {ILink, LinkProviderRegistry} from 'vs/editor/common/modes';
 import {asWinJsPromise} from 'vs/base/common/async';
+import {CommandsRegistry} from 'vs/platform/commands/common/commands';
+import {IModelService} from 'vs/editor/common/services/modelService';
 
 export function getLinks(model: IReadOnlyModel): TPromise<ILink[]> {
 
-	const promises = LinkProviderRegistry.ordered(model).map((support) => {
-		return asWinJsPromise((token) => {
-			return support.provideLinks(model, token);
-		}).then((result) => {
+	let links: ILink[] = [];
+
+	// ask all providers for links in parallel
+	const promises = LinkProviderRegistry.ordered(model).reverse().map(support => {
+		return asWinJsPromise(token => support.provideLinks(model, token)).then(result => {
 			if (Array.isArray(result)) {
-				return <ILink[]> result;
+				links = union(links, result);
 			}
-		}, err => {
-			onUnexpectedError(err);
-		});
+		}, onUnexpectedError);
 	});
 
-	return TPromise.join(promises).then(manyLinks => {
-		let result: ILink[] = [];
-		for (let links of manyLinks) {
-			if (links) {
-				result = result.concat(links);
-			}
-		}
-		return result;
+	return TPromise.join(promises).then(() => {
+		return links;
 	});
 }
+
+function union(oldLinks: ILink[], newLinks: ILink[]): ILink[] {
+	// reunite oldLinks with newLinks and remove duplicates
+	var result: ILink[] = [],
+		oldIndex: number,
+		oldLen: number,
+		newIndex: number,
+		newLen: number,
+		oldLink: ILink,
+		newLink: ILink,
+		comparisonResult: number;
+
+	for (oldIndex = 0, newIndex = 0, oldLen = oldLinks.length, newLen = newLinks.length; oldIndex < oldLen && newIndex < newLen;) {
+		oldLink = oldLinks[oldIndex];
+		newLink = newLinks[newIndex];
+
+		if (Range.areIntersectingOrTouching(oldLink.range, newLink.range)) {
+			// Remove the oldLink
+			oldIndex++;
+			continue;
+		}
+
+		comparisonResult = Range.compareRangesUsingStarts(oldLink.range, newLink.range);
+
+		if (comparisonResult < 0) {
+			// oldLink is before
+			result.push(oldLink);
+			oldIndex++;
+		} else {
+			// newLink is before
+			result.push(newLink);
+			newIndex++;
+		}
+	}
+
+	for (; oldIndex < oldLen; oldIndex++) {
+		result.push(oldLinks[oldIndex]);
+	}
+	for (; newIndex < newLen; newIndex++) {
+		result.push(newLinks[newIndex]);
+	}
+
+	return result;
+}
+
+CommandsRegistry.registerCommand('_executeLinkProvider', (accessor, ...args) => {
+
+	const [uri] = args;
+	if (!(uri instanceof URI)) {
+		return;
+	}
+
+	const model = accessor.get(IModelService).getModel(uri);
+	if (!model) {
+		return;
+	}
+
+	return getLinks(model);
+});

src/vs/workbench/api/node/extHostApiCommands.ts

@@ -147,7 +147,13 @@ class ExtHostApiCommands {
 			],
 			returns: 'A promise that resolves to an array of TextEdits.'
 		});
-
+		this._register('vscode.executeLinkProvider', this._executeDocumentLinkProvider, {
+			description: 'Execute document link provider.',
+			args: [
+				{ name: 'uri', description: 'Uri of a text document', constraint: URI }
+			],
+			returns: 'A promise that resolves to an array of DocumentLink-instances.'
+		});
 
 		this._register('vscode.previewHtml', (uri: URI, position?: vscode.ViewColumn, label?: string) => {
 			return this._commands.executeCommand('_workbench.previewHtml',
@@ -417,4 +423,12 @@ class ExtHostApiCommands {
 			}
 		});
 	}
+
+	private _executeDocumentLinkProvider(resource: URI): Thenable<vscode.DocumentLink[]> {
+		return this._commands.executeCommand<modes.ILink[]>('_executeLinkProvider', resource).then(value => {
+			if (Array.isArray(value)) {
+				return value.map(typeConverters.DocumentLink.to);
+			}
+		});
+	}
 }

src/vs/workbench/test/node/api/extHostApiCommands.test.ts

@@ -401,4 +401,26 @@ suite('ExtHostLanguageFeatureCommands', function() {
 			});
 		});
 	});
+
+	test('Links, back and forth', function() {
+
+		disposables.push(extHost.registerDocumentLinkProvider(defaultSelector, <vscode.DocumentLinkProvider>{
+			provideDocumentLinks(): any {
+				return [new types.DocumentLink(new types.Range(0, 0, 0, 20), URI.parse('foo:bar'))];
+			}
+		}));
+
+		return threadService.sync().then(() => {
+			return commands.executeCommand<vscode.DocumentLink[]>('vscode.executeLinkProvider', model.uri).then(value => {
+				assert.equal(value.length, 1);
+				let [first] = value;
+
+				assert.equal(first.target.toString(), 'foo:bar');
+				assert.equal(first.range.start.line, 0);
+				assert.equal(first.range.start.character, 0);
+				assert.equal(first.range.end.line, 0);
+				assert.equal(first.range.end.character, 20);
+			});
+		});
+	});
 });