| // Copyright 2016 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. |
| |
| /** |
| * @fileoverview |
| * 'media-picker' handles showing the dropdown allowing users to select the |
| * default camera/microphone. |
| */ |
| Polymer({ |
| is: 'media-picker', |
| |
| behaviors: [SiteSettingsBehavior, WebUIListenerBehavior], |
| |
| properties: { |
| /** |
| * The type of media picker, either 'camera' or 'mic'. |
| */ |
| type: String, |
| |
| /** Label for a11y purposes. */ |
| label: String, |
| |
| /** |
| * The devices available to pick from. |
| * @type {Array<MediaPickerEntry>} |
| */ |
| devices: Array, |
| }, |
| |
| /** @override */ |
| ready: function() { |
| this.addWebUIListener( |
| 'updateDevicesMenu', this.updateDevicesMenu_.bind(this)); |
| this.browserProxy.getDefaultCaptureDevices(this.type); |
| }, |
| |
| /** |
| * Updates the microphone/camera devices menu with the given entries. |
| * @param {string} type The device type. |
| * @param {!Array<MediaPickerEntry>} devices List of available devices. |
| * @param {string} defaultDevice The unique id of the current default device. |
| */ |
| updateDevicesMenu_: function(type, devices, defaultDevice) { |
| if (type != this.type) |
| return; |
| |
| this.$.picker.hidden = devices.length == 0; |
| if (devices.length > 0) { |
| this.devices = devices; |
| |
| // Wait for <select> to be populated. |
| this.async(() => { |
| this.$.mediaPicker.value = defaultDevice; |
| }); |
| } |
| }, |
| |
| /** |
| * A handler for when an item is selected in the media picker. |
| * @private |
| */ |
| onChange_: function() { |
| this.browserProxy.setDefaultCaptureDevice( |
| this.type, this.$.mediaPicker.value); |
| }, |
| }); |
