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<!DOCTYPE html>
<!--
This is a slightly minimised, modified and self-contained version of
gaia_switch/examples/index.html from the Gaia repository.
-->
<script>
'use strict';
(function(exports) {
/**
* ComponentUtils is a utility which allows us to use web components earlier
* than we should be able to by polyfilling and fixing platform deficiencies.
*/
var ComponentUtils = {
/**
* Injects a style.css into both the shadow root and outside the shadow
* root so we can style projected content. Bug 992249.
*/
style: function(baseUrl) {
var style = document.createElement('style');
style.setAttribute('scoped', '');
var url = baseUrl + '1017798-1.css';
style.innerHTML = '@import url(' + url + ');';
this.appendChild(style);
if (!this.shadowRoot) {
return;
}
// The setTimeout is necessary to avoid missing @import styles
// when appending two stylesheets. Bug 1003294.
setTimeout(() => {
this.shadowRoot.appendChild(style.cloneNode(true));
});
}
};
exports.ComponentUtils = ComponentUtils;
}(window));
</script>
<script>
'use strict';
/* global ComponentUtils */
window.GaiaSwitch = (function(win) {
// Extend from the HTMLElement prototype
class GaiaSwitch extends HTMLElement {
connectedCallback() {
var shadow = this.attachShadow({ mode: "open" });
this._template = template.content.cloneNode(true);
this._input = this._template.querySelector('input[type="checkbox"]');
var checked = this.getAttribute('checked');
if (checked !== null) {
this._input.checked = true;
}
shadow.appendChild(this._template);
ComponentUtils.style.call(this, '');
}
};
/**
* Proxy the checked property to the input element.
*/
Object.defineProperty( GaiaSwitch.prototype, 'checked', {
get: function() {
return this._input.checked;
},
set: function(value) {
this._input.checked = value;
}
});
/**
* Proxy the name property to the input element.
*/
Object.defineProperty( GaiaSwitch.prototype, 'name', {
get: function() {
return this.getAttribute('name');
},
set: function(value) {
this.setAttribute('name', value);
}
});
// HACK: Create a <template> in memory at runtime.
// When the custom-element is created we clone
// this template and inject into the shadow-root.
// Prior to this we would have had to copy/paste
// the template into the <head> of every app that
// wanted to use <gaia-switch>, this would make
// markup changes complicated, and could lead to
// things getting out of sync. This is a short-term
// hack until we can import entire custom-elements
// using HTML Imports (bug 877072).
var template = document.createElement('template');
template.innerHTML = '<label id="switch-label" class="pack-switch">' +
'<input type="checkbox">' +
'<span><slot></slot></span>' +
'</label>';
// Register and return the constructor
win.customElements.define('gaia-switch', GaiaSwitch);
return GaiaSwitch;
})(window);
</script>
<body>
<section>
<gaia-switch>
<label>With a label</label>
</gaia-switch>
</section>
<script>
window.onload = function() {
document.querySelector('gaia-switch').checked = true;
};
</script>
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