| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| QuickOpen.HelpQuickOpen = class extends QuickOpen.FilteredListWidget.Provider { |
| constructor() { |
| super(); |
| /** @type {!Array<{prefix: string, title: string}>} */ |
| this._providers = []; |
| self.runtime.extensions(QuickOpen.FilteredListWidget.Provider).forEach(this._addProvider.bind(this)); |
| } |
| |
| /** |
| * @param {!Runtime.Extension} extension |
| */ |
| _addProvider(extension) { |
| if (extension.descriptor()['title']) |
| this._providers.push({prefix: extension.descriptor()['prefix'], title: extension.descriptor()['title']}); |
| } |
| |
| /** |
| * @override |
| * @return {number} |
| */ |
| itemCount() { |
| return this._providers.length; |
| } |
| |
| /** |
| * @override |
| * @param {number} itemIndex |
| * @return {string} |
| */ |
| itemKeyAt(itemIndex) { |
| return this._providers[itemIndex].prefix; |
| } |
| |
| /** |
| * @override |
| * @param {number} itemIndex |
| * @param {string} query |
| * @return {number} |
| */ |
| itemScoreAt(itemIndex, query) { |
| return -this._providers[itemIndex].prefix.length; |
| } |
| |
| /** |
| * @override |
| * @param {number} itemIndex |
| * @param {string} query |
| * @param {!Element} titleElement |
| * @param {!Element} subtitleElement |
| */ |
| renderItem(itemIndex, query, titleElement, subtitleElement) { |
| const provider = this._providers[itemIndex]; |
| const prefixElement = titleElement.createChild('span', 'monospace'); |
| prefixElement.textContent = (provider.prefix || '\u2026') + ' '; |
| titleElement.createTextChild(provider.title); |
| } |
| |
| /** |
| * @override |
| * @param {?number} itemIndex |
| * @param {string} promptValue |
| */ |
| selectItem(itemIndex, promptValue) { |
| if (itemIndex !== null) |
| QuickOpen.QuickOpen.show(this._providers[itemIndex].prefix); |
| } |
| |
| /** |
| * @override |
| * @return {boolean} |
| */ |
| renderAsTwoRows() { |
| return false; |
| } |
| }; |