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| 1 <!-- | |
| 2 Copyright (c) 2014 The Polymer Project Authors. All rights reserved. | |
| 3 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE.txt | |
| 4 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt | |
| 5 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS.txt | |
| 6 Code distributed by Google as part of the polymer project is also | |
| 7 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS.txt | |
| 8 --> | |
| 9 | |
| 10 <!-- | |
| 11 | |
| 12 `core-dropdown-base` is a base class for implementing controls that displays | |
| 13 an overlay when tapped on. | |
| 14 | |
| 15 The child element with the class `dropdown` will be used as the drop-down. It | |
| 16 should be a `core-dropdown` or other overlay element. | |
| 17 | |
| 18 @group Polymer Core Elements | |
| 19 @element core-dropdown-base | |
| 20 @status unstable | |
| 21 @homepage github.io | |
| 22 --> | |
| 23 | |
| 24 <link href="../polymer/polymer.html" rel="import"> | |
| 25 | |
| 26 <polymer-element name="core-dropdown-base" tabindex="0"> | |
| 27 <script> | |
| 28 | |
| 29 Polymer({ | |
| 30 | |
| 31 publish: { | |
| 32 | |
| 33 /** | |
| 34 * True if the menu is open. | |
| 35 * | |
| 36 * @attribute opened | |
| 37 * @type boolean | |
| 38 * @default false | |
| 39 */ | |
| 40 opened: false | |
| 41 | |
| 42 }, | |
| 43 | |
| 44 eventDelegates: { | |
| 45 'tap': 'toggleOverlay' | |
| 46 }, | |
| 47 | |
| 48 overlayListeners: { | |
| 49 'core-overlay-open': 'openAction' | |
| 50 }, | |
| 51 | |
| 52 get dropdown() { | |
| 53 if (!this._dropdown) { | |
| 54 this._dropdown = this.querySelector('.dropdown'); | |
| 55 for (var l in this.overlayListeners) { | |
| 56 this.addElementListener(this._dropdown, l, this.overlayListeners[l]); | |
| 57 } | |
| 58 } | |
| 59 return this._dropdown; | |
| 60 }, | |
| 61 | |
| 62 attached: function() { | |
| 63 // find the dropdown on attach | |
| 64 // FIXME: Support MO? | |
| 65 this.dropdown; | |
| 66 }, | |
| 67 | |
| 68 addElementListener: function(node, event, methodName, capture) { | |
| 69 var fn = this._makeBoundListener(methodName); | |
| 70 if (node && fn) { | |
| 71 Polymer.addEventListener(node, event, fn, capture); | |
| 72 } | |
| 73 }, | |
| 74 | |
| 75 removeElementListener: function(node, event, methodName, capture) { | |
| 76 var fn = this._makeBoundListener(methodName); | |
| 77 if (node && fn) { | |
| 78 Polymer.removeEventListener(node, event, fn, capture); | |
| 79 } | |
| 80 }, | |
| 81 | |
| 82 _makeBoundListener: function(methodName) { | |
| 83 var self = this, method = this[methodName]; | |
| 84 if (!method) { | |
| 85 return; | |
| 86 } | |
| 87 var bound = '_bound' + methodName; | |
| 88 if (!this[bound]) { | |
| 89 this[bound] = function(e) { | |
| 90 method.call(self, e); | |
| 91 }; | |
| 92 } | |
| 93 return this[bound]; | |
| 94 }, | |
| 95 | |
| 96 openedChanged: function() { | |
| 97 if (this.disabled) { | |
| 98 return; | |
| 99 } | |
| 100 var dropdown = this.dropdown; | |
| 101 if (dropdown) { | |
| 102 dropdown.opened = this.opened; | |
| 103 } | |
| 104 }, | |
| 105 | |
| 106 openAction: function(e) { | |
| 107 this.opened = !!e.detail; | |
| 108 }, | |
| 109 | |
| 110 toggleOverlay: function() { | |
| 111 this.opened = !this.opened; | |
| 112 } | |
| 113 | |
| 114 }); | |
| 115 | |
| 116 </script> | |
| 117 </polymer-element> | |
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Chromium Code Reviews
Issue 1215543002:
Remove Polymer 0.5. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master