| <!-- |
| Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
| This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
| The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
| The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
| Code distributed by Google as part of the polymer project is also |
| subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
| --> |
| |
| <!-- |
| `paper-toggle-button` provides a ON/OFF switch that user can toggle the state |
| by tapping or by dragging the swtich. |
| |
| Example: |
| |
| <paper-toggle-button></paper-toggle-button> |
| |
| Styling toggle button: |
| |
| To change the ink color for checked state: |
| |
| paper-toggle-button::shadow paper-radio-button::shadow #ink[checked] { |
| color: #4285f4; |
| } |
| |
| To change the radio checked color: |
| |
| paper-toggle-button::shadow paper-radio-button::shadow #onRadio { |
| background-color: #4285f4; |
| } |
| |
| To change the bar color for checked state: |
| |
| paper-toggle-button::shadow #toggleBar[checked] { |
| background-color: #4285f4; |
| } |
| |
| To change the ink color for unchecked state: |
| |
| paper-toggle-button::shadow paper-radio-button::shadow #ink { |
| color: #b5b5b5; |
| } |
| |
| To change the radio unchecked color: |
| |
| paper-toggle-button::shadow paper-radio-button::shadow #offRadio { |
| border-color: #b5b5b5; |
| } |
| |
| To change the bar color for unchecked state: |
| |
| paper-toggle-button::shadow #toggleBar { |
| background-color: red; |
| } |
| |
| @group Paper Elements |
| @element paper-toggle-button |
| @homepage github.io |
| --> |
| |
| <link rel="import" href="../paper-radio-button/paper-radio-button.html"> |
| |
| <polymer-element name="paper-toggle-button" attributes="checked" role="button" aria-pressed="false" tabindex="0"> |
| <template> |
| |
| <link rel="stylesheet" href="paper-toggle-button.css"> |
| |
| <div id="toggleContainer"> |
| |
| <div id="toggleBar" checked?="{{checked}}"></div> |
| |
| <paper-radio-button id="toggleRadio" toggles checked="{{checked}}" on-change="{{changeAction}}" on-core-change="{{stopPropagation}}" |
| on-trackstart="{{trackStart}}" on-trackx="{{trackx}}" on-trackend="{{trackEnd}}"></paper-radio-button> |
| |
| </div> |
| |
| </template> |
| <script> |
| |
| Polymer('paper-toggle-button', { |
| |
| /** |
| * Fired when the checked state changes due to user interaction. |
| * |
| * @event change |
| */ |
| |
| /** |
| * Fired when the checked state changes. |
| * |
| * @event core-change |
| */ |
| |
| /** |
| * Gets or sets the state, `true` is checked and `false` is unchecked. |
| * |
| * @attribute checked |
| * @type boolean |
| * @default false |
| */ |
| checked: false, |
| |
| trackStart: function(e) { |
| this._w = this.$.toggleBar.offsetLeft + this.$.toggleBar.offsetWidth; |
| e.preventTap(); |
| }, |
| |
| trackx: function(e) { |
| this._x = Math.min(this._w, |
| Math.max(0, this.checked ? this._w + e.dx : e.dx)); |
| this.$.toggleRadio.classList.add('dragging'); |
| var s = this.$.toggleRadio.style; |
| s.webkitTransform = s.transform = 'translate3d(' + this._x + 'px,0,0)'; |
| }, |
| |
| trackEnd: function() { |
| var s = this.$.toggleRadio.style; |
| s.transform = s.webkitTransform = ''; |
| this.$.toggleRadio.classList.remove('dragging'); |
| var old = this.checked; |
| this.checked = Math.abs(this._x) > this._w / 2; |
| if (this.checked !== old) { |
| this.fire('change'); |
| } |
| }, |
| |
| checkedChanged: function() { |
| this.setAttribute('aria-pressed', Boolean(this.checked)); |
| this.fire('core-change'); |
| }, |
| |
| changeAction: function(e) { |
| e.stopPropagation(); |
| this.fire('change'); |
| }, |
| |
| stopPropagation: function(e) { |
| e.stopPropagation(); |
| } |
| |
| }); |
| |
| </script> |
| </polymer-element> |