155 lines
4.0 KiB
HTML
155 lines
4.0 KiB
HTML
<!--
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Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
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This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
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The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
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The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
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Code distributed by Google as part of the polymer project is also
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subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
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-->
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<!--
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`paper-toggle-button` provides a ON/OFF switch that user can toggle the state
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by tapping or by dragging the swtich.
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Example:
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<paper-toggle-button></paper-toggle-button>
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Styling toggle button:
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To change the ink color for checked state:
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paper-toggle-button::shadow paper-radio-button::shadow #ink[checked] {
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color: #4285f4;
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}
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To change the radio checked color:
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paper-toggle-button::shadow paper-radio-button::shadow #onRadio {
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background-color: #4285f4;
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}
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To change the bar color for checked state:
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paper-toggle-button::shadow #toggleBar[checked] {
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background-color: #4285f4;
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}
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To change the ink color for unchecked state:
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paper-toggle-button::shadow paper-radio-button::shadow #ink {
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color: #b5b5b5;
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}
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To change the radio unchecked color:
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paper-toggle-button::shadow paper-radio-button::shadow #offRadio {
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border-color: #b5b5b5;
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}
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To change the bar color for unchecked state:
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paper-toggle-button::shadow #toggleBar {
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background-color: red;
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}
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@group Paper Elements
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@element paper-toggle-button
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@homepage github.io
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-->
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<link rel="import" href="../paper-radio-button/paper-radio-button.html">
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<polymer-element name="paper-toggle-button" attributes="checked disabled" role="button" aria-pressed="false" tabindex="0">
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<template>
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<link rel="stylesheet" href="paper-toggle-button.css">
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<div id="toggleContainer" disabled?="{{disabled}}">
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<div id="toggleBar" checked?="{{checked}}"></div>
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<paper-radio-button id="toggleRadio" toggles checked="{{checked}}" on-change="{{changeAction}}" on-core-change="{{stopPropagation}}"
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on-trackstart="{{trackStart}}" on-trackx="{{trackx}}" on-trackend="{{trackEnd}}"></paper-radio-button>
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</div>
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</template>
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<script>
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Polymer('paper-toggle-button', {
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/**
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* Fired when the checked state changes due to user interaction.
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*
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* @event change
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*/
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/**
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* Fired when the checked state changes.
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*
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* @event core-change
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*/
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/**
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* Gets or sets the state, `true` is checked and `false` is unchecked.
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*
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* @attribute checked
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* @type boolean
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* @default false
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*/
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checked: false,
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/**
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* If true, the toggle button is disabled. A disabled toggle button cannot
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* be tapped or dragged to change the checked state.
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*
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* @attribute disabled
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* @type boolean
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* @default false
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*/
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disabled: false,
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trackStart: function(e) {
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this._w = this.$.toggleBar.offsetLeft + this.$.toggleBar.offsetWidth;
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e.preventTap();
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},
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trackx: function(e) {
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this._x = Math.min(this._w,
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Math.max(0, this.checked ? this._w + e.dx : e.dx));
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this.$.toggleRadio.classList.add('dragging');
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var s = this.$.toggleRadio.style;
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s.webkitTransform = s.transform = 'translate3d(' + this._x + 'px,0,0)';
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},
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trackEnd: function() {
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var s = this.$.toggleRadio.style;
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s.transform = s.webkitTransform = '';
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this.$.toggleRadio.classList.remove('dragging');
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var old = this.checked;
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this.checked = Math.abs(this._x) > this._w / 2;
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if (this.checked !== old) {
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this.fire('change');
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}
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},
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checkedChanged: function() {
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this.setAttribute('aria-pressed', Boolean(this.checked));
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this.fire('core-change');
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},
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changeAction: function(e) {
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e.stopPropagation();
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this.fire('change');
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},
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stopPropagation: function(e) {
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e.stopPropagation();
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}
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});
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</script>
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</polymer-element>
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