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| 1 <!-- | |
| 2 @license | |
| 3 Copyright (c) 2015 The Polymer Project Authors. All rights reserved. | |
| 4 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE.txt | |
| 5 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt | |
| 6 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS.txt | |
| 7 Code distributed by Google as part of the polymer project is also | |
| 8 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS.txt | |
| 9 --> | |
| 10 | |
| 11 <link rel="import" href="../polymer/polymer.html"> | |
| 12 <link rel="import" href="../paper-ripple/paper-ripple.html"> | |
| 13 <link rel="import" href="../paper-styles/default-theme.html"> | |
| 14 <link rel="import" href="../paper-behaviors/paper-inky-focus-behavior.html"> | |
| 15 | |
| 16 <!-- | |
| 17 | |
| 18 `paper-checkbox` is a button that can be either checked or unchecked. User | |
| 19 can tap the checkbox to check or uncheck it. Usually you use checkboxes | |
| 20 to allow user to select multiple options from a set. If you have a single | |
| 21 ON/OFF option, avoid using a single checkbox and use `paper-toggle-button` | |
| 22 instead. | |
| 23 | |
| 24 Example: | |
| 25 | |
| 26 <paper-checkbox>label</paper-checkbox> | |
| 27 | |
| 28 <paper-checkbox checked> label</paper-checkbox> | |
| 29 | |
| 30 ### Styling | |
| 31 | |
| 32 The following custom properties and mixins are available for styling: | |
| 33 | |
| 34 Custom property | Description | Default | |
| 35 ----------------|-------------|---------- | |
| 36 `--paper-checkbox-unchecked-background-color` | Checkbox background color when t
he input is not checked | `transparent` | |
| 37 `--paper-checkbox-unchecked-color` | Checkbox border color when the input is not
checked | `--primary-text-color` | |
| 38 `--paper-checkbox-unchecked-ink-color` | Selected/focus ripple color when the in
put is not checked | `--primary-text-color` | |
| 39 `--paper-checkbox-checked-color` | Checkbox color when the input is checked | `-
-default-primary-color` | |
| 40 `--paper-checkbox-checked-ink-color` | Selected/focus ripple color when the inpu
t is checked | `--default-primary-color` | |
| 41 `--paper-checkbox-checkmark-color` | Checkmark color | `white` | |
| 42 `--paper-checkbox-label-color` | Label color | `--primary-text-color` | |
| 43 | |
| 44 @demo demo/index.html | |
| 45 --> | |
| 46 | |
| 47 <dom-module id="paper-checkbox"> | |
| 48 <link rel="import" type="css" href="paper-checkbox.css"> | |
| 49 | |
| 50 <template> | |
| 51 | |
| 52 <div id="checkboxContainer"> | |
| 53 <paper-ripple id="ink" class="circle" center checked$="[[checked]]"></pape
r-ripple> | |
| 54 <div id="checkbox" class$="[[_computeCheckboxClass(checked)]]"> | |
| 55 <div id="checkmark" class$="[[_computeCheckmarkClass(checked)]]"></div> | |
| 56 </div> | |
| 57 </div> | |
| 58 | |
| 59 <div id="checkboxLabel" aria-hidden="true"><content></content></div> | |
| 60 | |
| 61 </template> | |
| 62 | |
| 63 <script> | |
| 64 Polymer({ | |
| 65 is: 'paper-checkbox', | |
| 66 | |
| 67 behaviors: [ | |
| 68 Polymer.PaperInkyFocusBehavior | |
| 69 ], | |
| 70 | |
| 71 hostAttributes: { | |
| 72 role: 'checkbox', | |
| 73 'aria-checked': false, | |
| 74 tabindex: 0 | |
| 75 }, | |
| 76 | |
| 77 properties: { | |
| 78 /** | |
| 79 * Fired when the checked state changes due to user interaction. | |
| 80 * | |
| 81 * @event change | |
| 82 */ | |
| 83 | |
| 84 /** | |
| 85 * Fired when the checked state changes. | |
| 86 * | |
| 87 * @event iron-change | |
| 88 */ | |
| 89 | |
| 90 /** | |
| 91 * Gets or sets the state, `true` is checked and `false` is unchecked. | |
| 92 */ | |
| 93 checked: { | |
| 94 type: Boolean, | |
| 95 value: false, | |
| 96 reflectToAttribute: true, | |
| 97 notify: true, | |
| 98 observer: '_checkedChanged' | |
| 99 }, | |
| 100 | |
| 101 /** | |
| 102 * If true, the button toggles the active state with each tap or press | |
| 103 * of the spacebar. | |
| 104 */ | |
| 105 toggles: { | |
| 106 type: Boolean, | |
| 107 value: true, | |
| 108 reflectToAttribute: true | |
| 109 } | |
| 110 }, | |
| 111 | |
| 112 ready: function() { | |
| 113 if (Polymer.dom(this).textContent == '') { | |
| 114 this.$.checkboxLabel.hidden = true; | |
| 115 } else { | |
| 116 this.setAttribute('aria-label', Polymer.dom(this).textContent); | |
| 117 } | |
| 118 this._isReady = true; | |
| 119 }, | |
| 120 | |
| 121 // button-behavior hook | |
| 122 _buttonStateChanged: function() { | |
| 123 if (this.disabled) { | |
| 124 return; | |
| 125 } | |
| 126 if (this._isReady) { | |
| 127 this.checked = this.active; | |
| 128 } | |
| 129 }, | |
| 130 | |
| 131 _checkedChanged: function(checked) { | |
| 132 this.setAttribute('aria-checked', this.checked ? 'true' : 'false'); | |
| 133 this.active = this.checked; | |
| 134 this.fire('iron-change'); | |
| 135 }, | |
| 136 | |
| 137 _computeCheckboxClass: function(checked) { | |
| 138 if (checked) { | |
| 139 return 'checked'; | |
| 140 } | |
| 141 return ''; | |
| 142 }, | |
| 143 | |
| 144 _computeCheckmarkClass: function(checked) { | |
| 145 if (!checked) { | |
| 146 return 'hidden'; | |
| 147 } | |
| 148 return ''; | |
| 149 } | |
| 150 }) | |
| 151 </script> | |
| 152 | |
| 153 </dom-module> | |
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