Merge from vscode cfc1ab4c5f816765b91fb7ead3c3427a7c8581a3

src/vs/platform/quickinput/browser/helpQuickAccess.ts

@@ -0,0 +1,77 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { IQuickPick, IQuickPickItem, IQuickInputService } from 'vs/platform/quickinput/common/quickInput';
+import { IQuickAccessProvider, IQuickAccessRegistry, Extensions } from 'vs/platform/quickinput/common/quickAccess';
+import { Registry } from 'vs/platform/registry/common/platform';
+import { CancellationToken } from 'vs/base/common/cancellation';
+import { localize } from 'vs/nls';
+import { DisposableStore, IDisposable } from 'vs/base/common/lifecycle';
+
+interface IHelpQuickAccessPickItem extends IQuickPickItem {
+	prefix: string;
+}
+
+export class HelpQuickAccessProvider implements IQuickAccessProvider {
+
+	static PREFIX = '?';
+
+	private readonly registry = Registry.as<IQuickAccessRegistry>(Extensions.Quickaccess);
+
+	constructor(@IQuickInputService private readonly quickInputService: IQuickInputService) { }
+
+	provide(picker: IQuickPick<IHelpQuickAccessPickItem>, token: CancellationToken): IDisposable {
+		const disposables = new DisposableStore();
+
+		// Open a picker with the selected value if picked
+		disposables.add(picker.onDidAccept(() => {
+			const [item] = picker.selectedItems;
+			if (item) {
+				this.quickInputService.quickAccess.show(item.prefix);
+			}
+		}));
+
+		// Fill in all providers separated by editor/global scope
+		const { editorProviders, globalProviders } = this.getQuickAccessProviders();
+		picker.items = editorProviders.length === 0 || globalProviders.length === 0 ?
+
+			// Without groups
+			[
+				...(editorProviders.length === 0 ? globalProviders : editorProviders)
+			] :
+
+			// With groups
+			[
+				{ label: localize('globalCommands', "global commands"), type: 'separator' },
+				...globalProviders,
+				{ label: localize('editorCommands', "editor commands"), type: 'separator' },
+				...editorProviders
+			];
+
+		return disposables;
+	}
+
+	private getQuickAccessProviders(): { editorProviders: IHelpQuickAccessPickItem[], globalProviders: IHelpQuickAccessPickItem[] } {
+		const globalProviders: IHelpQuickAccessPickItem[] = [];
+		const editorProviders: IHelpQuickAccessPickItem[] = [];
+
+		for (const provider of this.registry.getQuickAccessProviders().sort((p1, p2) => p1.prefix.localeCompare(p2.prefix))) {
+			for (const helpEntry of provider.helpEntries) {
+				const prefix = helpEntry.prefix || provider.prefix;
+				const label = prefix || '\u2026' /* ... */;
+
+				(helpEntry.needsEditor ? editorProviders : globalProviders).push({
+					prefix,
+					label,
+					description: helpEntry.description,
+					ariaLabel: localize('entryAriaLabel', "{0}, picker help", label)
+				});
+			}
+		}
+
+		return { editorProviders, globalProviders };
+	}
+}
+