chrome/browser/resources/settings/radio_group/radio_group.js

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /**
   6  * @fileoverview
   7  * `cr-radio-group` wraps a radio-group and set of radio-buttons that control
   8  *  a supplied preference.
   9  *
  10  * Example:
  11  *      <cr-settings-radio-group pref="{{prefs.settings.foo}}"
  12  *          label="Foo Options." buttons="{{fooOptionsList}}">
  13  *      </cr-settings-radio-group>
  14  *
  15  * @element cr-settings-radio-group
  16  */
  17 Polymer({
  18   is: 'cr-settings-radio-group',
  19
  20   properties: {
  21     /**
  22      * The preference object to control.
  23      * @type {chrome.settingsPrivate.PrefObject|undefined}
  24      */
  25     pref: {
  26       type: Object,
  27       notify: true,
  28       observer: 'prefChanged_'
  29     },
  30
  31     /**
  32      * IronSelectableBehavior selected attribute
  33      */
  34     selected: {
  35       type: String,
  36       observer: 'selectedChanged_'
  37     },
  38   },
  39
  40   /** @private */
  41   prefChanged_: function() {
  42     if (!this.pref)
  43       return;
  44     if (this.pref.type == chrome.settingsPrivate.PrefType.NUMBER ||
  45         this.pref.type == chrome.settingsPrivate.PrefType.BOOLEAN) {
  46       this.selected = this.pref.value.toString();
  47     } else {
  48       assert(this.pref.type != chrome.settingsPrivate.PrefType.LIST);
  49       this.selected = /** @type {string} */(this.pref.value);
  50     }
  51   },
  52
  53   /** @private */
  54   selectedChanged_: function() {
  55     if (!this.pref)
  56       return;
  57     if (this.pref.type == chrome.settingsPrivate.PrefType.NUMBER) {
  58       var n = parseInt(this.selected, 10);
  59       if (isNaN(n)) {
  60         console.error('Bad selected name for numerical pref: ' + this.selected);
  61         return;
  62       }
  63       this.set('pref.value', n);
  64     } else if (this.pref.type == chrome.settingsPrivate.PrefType.BOOLEAN) {
  65       this.set('pref.value', this.selected == 'true');
  66     } else {
  67       assert(this.pref.type != chrome.settingsPrivate.PrefType.LIST);
  68       this.set('pref.value', this.selected);
  69     }
  70   },
  71 });