extensionEditor.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 'vs/css!./media/extensionEditor';
import { localize } from 'vs/nls';
import { TPromise } from 'vs/base/common/winjs.base';
import { marked } from 'vs/base/common/marked/marked';
import { always } from 'vs/base/common/async';
import Event, { Emitter, once } from 'vs/base/common/event';
import Cache from 'vs/base/common/cache';
import { Action } from 'vs/base/common/actions';
import { onUnexpectedError } from 'vs/base/common/errors';
import { IDisposable, empty, dispose, toDisposable } from 'vs/base/common/lifecycle';
import { Builder } from 'vs/base/browser/builder';
import { domEvent } from 'vs/base/browser/event';
import { append, $, addClass, removeClass, finalHandler } from 'vs/base/browser/dom';
import { BaseEditor } from 'vs/workbench/browser/parts/editor/baseEditor';
import { IViewlet } from 'vs/workbench/common/viewlet';
import { IViewletService } from 'vs/workbench/services/viewlet/common/viewletService';
import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
import { IExtensionGalleryService, IExtensionManifest } from 'vs/platform/extensionManagement/common/extensionManagement';
import { IThemeService } from 'vs/workbench/services/themes/common/themeService';
import { ExtensionsInput } from './extensionsInput';
import { IExtensionsWorkbenchService, IExtensionsViewlet, VIEWLET_ID, IExtension } from './extensions';
import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
import { ITemplateData } from './extensionsList';
import { RatingsWidget, InstallWidget } from './extensionsWidgets';
import { EditorOptions } from 'vs/workbench/common/editor';
import { shell } from 'electron';
import product from 'vs/platform/product';
import { ActionBar } from 'vs/base/browser/ui/actionbar/actionbar';
import { CombinedInstallAction, UpdateAction, EnableAction } from './extensionsActions';
import WebView from 'vs/workbench/parts/html/browser/webview';
import { IWorkbenchEditorService } from 'vs/workbench/services/editor/common/editorService';

function renderBody(body: string): string {
	return `<!DOCTYPE html>
		<html>
			<head>
				<meta http-equiv="Content-type" content="text/html;charset=UTF-8">
				<link rel="stylesheet" type="text/css" href="${ require.toUrl('./media/markdown.css') }" >
			</head>
			<body>${ body }</body>
		</html>`;
}

class NavBar {

	private _onChange = new Emitter<string>();
	get onChange(): Event<string> { return this._onChange.event; }

	private actions: Action[];
	private actionbar: ActionBar;

	constructor(container: HTMLElement) {
		const element = append(container, $('.navbar'));
		this.actions = [];
		this.actionbar = new ActionBar(element, { animated: false });
	}

	push(id: string, label: string): void {
		const run = () => {
			this._onChange.fire(id);
			this.actions.forEach(a => a.enabled = a.id !== action.id);
			return TPromise.as(null);
		};

		const action = new Action(id, label, null, true, run);

		this.actions.push(action);
		this.actionbar.push(action);

		if (this.actions.length === 1) {
			run();
		}
	}

	clear(): void {
		this.actions = dispose(this.actions);
		this.actionbar.clear();
	}

	dispose(): void {
		this.actionbar = dispose(this.actionbar);
	}
}

const NavbarSection = {
	Readme: 'readme',
	Contributions: 'contributions'
};

export class ExtensionEditor extends BaseEditor {

	static ID: string = 'workbench.editor.extension';

	private icon: HTMLImageElement;
	private name: HTMLAnchorElement;
	private license: HTMLAnchorElement;
	private publisher: HTMLAnchorElement;
	private installCount: HTMLElement;
	private rating: HTMLAnchorElement;
	private description: HTMLElement;
	private extensionActionBar: ActionBar;
	private navbar: NavBar;
	private content: HTMLElement;

	private _highlight: ITemplateData;
	private highlightDisposable: IDisposable;

	private extensionReadme: Cache<string>;
	private extensionManifest: Cache<IExtensionManifest>;

	private contentDisposables: IDisposable[] = [];
	private transientDisposables: IDisposable[] = [];
	private disposables: IDisposable[];

	constructor(
		@ITelemetryService telemetryService: ITelemetryService,
		@IExtensionGalleryService private galleryService: IExtensionGalleryService,
		@IConfigurationService private configurationService: IConfigurationService,
		@IInstantiationService private instantiationService: IInstantiationService,
		@IViewletService private viewletService: IViewletService,
		@IExtensionsWorkbenchService private extensionsWorkbenchService: IExtensionsWorkbenchService,
		@IThemeService private themeService: IThemeService,
		@IWorkbenchEditorService private editorService: IWorkbenchEditorService
	) {
		super(ExtensionEditor.ID, telemetryService);
		this._highlight = null;
		this.highlightDisposable = empty;
		this.disposables = [];
		this.extensionReadme = null;
		this.extensionManifest = null;

		this.disposables.push(viewletService.onDidViewletOpen(this.onViewletOpen, this, this.disposables));
	}

	createEditor(parent: Builder): void {
		const container = parent.getHTMLElement();

		const root = append(container, $('.extension-editor'));
		const header = append(root, $('.header'));

		this.icon = append(header, $<HTMLImageElement>('img.icon'));

		const details = append(header, $('.details'));
		const title = append(details, $('.title'));
		this.name = append(title, $<HTMLAnchorElement>('a.name'));
		this.name.href = '#';

		const subtitle = append(details, $('.subtitle'));
		this.publisher = append(subtitle, $<HTMLAnchorElement>('a.publisher'));
		this.publisher.href = '#';

		this.installCount = append(subtitle, $('span.install'));

		this.rating = append(subtitle, $<HTMLAnchorElement>('a.rating'));
		this.rating.href = '#';

		this.license = append(subtitle, $<HTMLAnchorElement>('a.license'));
		this.license.href = '#';
		this.license.textContent = localize('license', 'License');
		this.license.style.display = 'none';

		this.description = append(details, $('.description'));

		const extensionActions = append(details, $('.actions'));
		this.extensionActionBar = new ActionBar(extensionActions, { animated: false });
		this.disposables.push(this.extensionActionBar);

		const body = append(root, $('.body'));
		this.navbar = new NavBar(body);

		this.content = append(body, $('.content'));
	}

	setInput(input: ExtensionsInput, options: EditorOptions): TPromise<void> {
		this.transientDisposables = dispose(this.transientDisposables);

		const extension = input.extension;
		this.telemetryService.publicLog('extensionGallery:openExtension', extension.telemetryData);

		this.extensionReadme = new Cache(() => extension.getReadme());
		this.extensionManifest = new Cache(() => extension.getManifest());

		const onError = once(domEvent(this.icon, 'error'));
		onError(() => this.icon.src = extension.iconUrlFallback, null, this.transientDisposables);
		this.icon.src = extension.iconUrl;

		this.name.textContent = extension.displayName;
		this.publisher.textContent = extension.publisherDisplayName;
		this.description.textContent = extension.description;

		if (product.extensionsGallery) {
			const extensionUrl = `${ product.extensionsGallery.itemUrl }?itemName=${ extension.publisher }.${ extension.name }`;

			this.name.onclick = finalHandler(() => shell.openExternal(extensionUrl));
			this.rating.onclick = finalHandler(() => shell.openExternal(`${ extensionUrl }#review-details`));
			this.publisher.onclick = finalHandler(() => {
				this.viewletService.openViewlet(VIEWLET_ID, true)
					.then(viewlet => viewlet as IExtensionsViewlet)
					.done(viewlet => viewlet.search(`publisher:"${ extension.publisherDisplayName }"`, true));
			});

			if (extension.licenseUrl) {
				this.license.onclick = finalHandler(() => shell.openExternal(extension.licenseUrl));
				this.license.style.display = 'initial';
			} else {
				this.license.onclick = null;
				this.license.style.display = 'none';
			}
		}

		const install = this.instantiationService.createInstance(InstallWidget, this.installCount, { extension });
		this.transientDisposables.push(install);

		const ratings = this.instantiationService.createInstance(RatingsWidget, this.rating, { extension });
		this.transientDisposables.push(ratings);

		const installAction = this.instantiationService.createInstance(CombinedInstallAction);
		const updateAction = this.instantiationService.createInstance(UpdateAction);
		const enableAction = this.instantiationService.createInstance(EnableAction);

		installAction.extension = extension;
		updateAction.extension = extension;
		enableAction.extension = extension;

		this.extensionActionBar.clear();
		this.extensionActionBar.push([enableAction, updateAction, installAction], { icon: true, label: true });
		this.transientDisposables.push(enableAction, updateAction, installAction);

		this.navbar.clear();
		this.navbar.onChange(this.onNavbarChange.bind(this, extension), this, this.transientDisposables);
		this.navbar.push(NavbarSection.Readme, localize('details', "Details"));
		this.navbar.push(NavbarSection.Contributions, localize('contributions', "Contributions"));

		this.content.innerHTML = '';

		return super.setInput(input, options);
	}

	private onNavbarChange(extension: IExtension, id: string): void {
		switch (id) {
			case NavbarSection.Readme: return this.openReadme(extension);
			case NavbarSection.Contributions: return this.openContributions(extension);
		}
	}

	private openReadme(extension: IExtension) {
		return this.loadContents(() => this.extensionReadme.get()
			.then(marked.parse)
			.then(renderBody)
			.then<void>(body => {
				const webview = new WebView(
					this.content,
					document.querySelector('.monaco-editor-background')
				);

				webview.style(this.themeService.getColorTheme());
				webview.contents = [body];

				const linkListener = webview.onDidClickLink(link => shell.openExternal(link.toString()));
				const themeListener = this.themeService.onDidColorThemeChange(themeId => webview.style(themeId));
				this.contentDisposables.push(webview, linkListener, themeListener);
			})
			.then(null, () => {
				const p = append(this.content, $('p'));
				p.textContent = localize('noReadme', "No README available.");
			}));
	}

	private openContributions(extension: IExtension) {
		return this.loadContents(() => this.extensionManifest.get()
			.then(manifest => {
				this.content.innerHTML = '';
				const content = append(this.content, $('div', { class: 'subcontent' }));

				ExtensionEditor.renderSettings(content, manifest);
				ExtensionEditor.renderThemes(content, manifest);
				ExtensionEditor.renderDebuggers(content, manifest);
			}));
	}

	private static renderSettings(container: HTMLElement, manifest: IExtensionManifest): void {
		const configuration = manifest.contributes.configuration;
		const properties = configuration && configuration.properties;
		const settings = properties ? Object.keys(properties) : [];

		if (!settings.length) {
			return;
		}

		append(container, $('details', { open: true },
			$('summary', null, localize('settings', "Settings ({0})", settings.length)),
			$('table', null,
				$('tr', null, $('th', null, localize('setting name', "Name")), $('th', null, localize('description', "Description"))),
				...settings.map(key => $('tr', null, $('td', null, $('code', null, key)), $('td', null, properties[key].description)))
			)
		));
	}

	private static renderDebuggers(container: HTMLElement, manifest: IExtensionManifest): void {
		const debuggers = manifest.contributes.debuggers || [];

		if (!debuggers.length) {
			return;
		}

		append(container, $('details', { open: true },
			$('summary', null, localize('debuggers', "Debuggers ({0})", debuggers.length)),
			$('table', null,
				$('tr', null, $('th', null, localize('debugger name', "Name")), $('th', null, localize('runtime', "Runtime"))),
				...debuggers.map(d => $('tr', null, $('td', null, d.label || d.type), $('td', null, d.runtime)))
			)
		));
	}

	private static renderThemes(container: HTMLElement, manifest: IExtensionManifest): void {
		const themes = manifest.contributes.themes || [];

		if (!themes.length) {
			return;
		}

		append(container, $('details', { open: true },
			$('summary', null, localize('themes', "Themes ({0})", themes.length)),
			$('ul', null,
				...themes.map(theme => $('li', null, theme.label))
			)
		));
	}

	private loadContents(loadingTask: ()=>TPromise<any>): void {
		this.contentDisposables = dispose(this.contentDisposables);

		this.content.innerHTML = '';
		addClass(this.content, 'loading');

		let promise = loadingTask();
		promise = always(promise, () => removeClass(this.content, 'loading'));

		this.contentDisposables.push(toDisposable(() => promise.cancel()));
	}

	layout(): void {
		return;
	}

	private onViewletOpen(viewlet: IViewlet): void {
		if (!viewlet || viewlet.getId() === VIEWLET_ID) {
			return;
		}

		this.editorService.closeEditor(this.position, this.input).done(null, onUnexpectedError);
	}

	dispose(): void {
		this._highlight = null;
		this.transientDisposables = dispose(this.transientDisposables);
		this.disposables = dispose(this.disposables);
		super.dispose();
	}
}