Created
June 18, 2016 14:01
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HTML5 web components custom element
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| <template> | |
| <style> | |
| </style> | |
| <div> | |
| </div> | |
| </template> | |
| <script> | |
| (function() { | |
| // webcomponents.js Polyfill used | |
| var template = document._currentScript.ownerDocument.querySelector('template'); | |
| var proto = Object.create(HTMLElement.prototype); | |
| proto.createdCallback = function() { | |
| // Deep clone | |
| var clone = document.importNode(template.content, true); | |
| // Add the template contents to the shadow DOM | |
| this.createShadowRoot().appendChild(clone); | |
| // Or add the template contents to the DOM | |
| this.appendChild(clone); | |
| }; | |
| proto.attachedCallback = function() { | |
| console.log('element attached'); | |
| }; | |
| proto.detachedCallback = function() { | |
| console.log('element detached'); | |
| }; | |
| proto.attributeChangedCallback = function(attrName, oldVal, newVal) { | |
| console.log(`element attribute ${attrName} value changed from ${oldVal} to ${newVal}`); | |
| }; | |
| document.registerElement('hubi-widget', { | |
| prototype: proto | |
| }); | |
| })(); | |
| </script> |
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