themes.contribution.ts

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
'use strict';

import nls = require('vs/nls');
import winjs = require('vs/base/common/winjs.base');
import actions = require('vs/base/common/actions');
import {SyncActionDescriptor} from 'vs/platform/actions/common/actions';
import {IMessageService, Severity} from 'vs/platform/message/common/message';
import platform = require('vs/platform/platform');
import workbenchActionRegistry = require('vs/workbench/common/actionRegistry');
import {IQuickOpenService, IPickOpenEntry} from 'vs/workbench/services/quickopen/common/quickOpenService';
import {IWorkspaceContextService} from 'vs/platform/workspace/common/workspace';
import {IThemeService} from 'vs/workbench/services/themes/common/themeService';
import {RunOnceScheduler} from 'vs/base/common/async';

class SelectThemeAction extends actions.Action {

	public static ID = 'workbench.action.selectTheme';
	public static LABEL = nls.localize('selectTheme.label', "Color Theme");

	constructor(
		id: string,
		label: string,
		@IWorkspaceContextService private contextService: IWorkspaceContextService,
		@IQuickOpenService private quickOpenService: IQuickOpenService,
		@IMessageService private messageService: IMessageService,
		@IThemeService private themeService: IThemeService
	) {
		super(id, label);
	}

	public run(): winjs.TPromise<void> {

		return this.themeService.getThemes().then(contributedThemes => {
			let currentTheme = this.themeService.getTheme();

			let picks: IPickOpenEntry[] = [];

			contributedThemes.forEach(theme => {
				picks.push({ id: theme.id, label: theme.label, description: theme.description });
				contributedThemes[theme.id] = theme;
			});

			picks = picks.sort((t1, t2) => t1.label.localeCompare(t2.label));

			let selectedPickIndex: number;
			picks.forEach((p, index) => {
				if (p.id === currentTheme) {
					selectedPickIndex = index;
				}
			});

			let selectTheme = (pick, broadcast) => {
				if (pick) {
					let themeId = pick.id;
					this.themeService.setTheme(themeId, broadcast).then(null, error => {
						this.messageService.show(Severity.Info, nls.localize('problemChangingTheme', "Problem loading theme: {0}", error.message));
					});
				} else {
					this.themeService.setTheme(currentTheme, broadcast);
				}
			};

			let themeToPreview : IPickOpenEntry = null;
			let previewThemeScheduler = new RunOnceScheduler(() => {
				selectTheme(themeToPreview, false);
			}, 100);
			let previewTheme = pick => {
				themeToPreview = pick;
				previewThemeScheduler.schedule();
			};
			let pickTheme = pick => {
				previewThemeScheduler.dispose();
				selectTheme(pick, true);
			};
			return this.quickOpenService.pick(picks, { placeHolder: nls.localize('themes.selectTheme', "Select Color Theme"), autoFocus: { autoFocusIndex: selectedPickIndex } }).then(pickTheme, null, previewTheme);
		});
	}
}

const category = nls.localize('preferences', "Preferences");
let workbenchActionsRegistry = <workbenchActionRegistry.IWorkbenchActionRegistry>platform.Registry.as(workbenchActionRegistry.Extensions.WorkbenchActions);
workbenchActionsRegistry.registerWorkbenchAction(new SyncActionDescriptor(SelectThemeAction, SelectThemeAction.ID, SelectThemeAction.LABEL), 'Preferences: Color Theme', category);