Creating WebComponents with custom events, via the EventEmitter library (and using lodash to assign to the prototype).
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August 29, 2015 14:15
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Webcomponents with events!
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| <html> | |
| <head> | |
| <title>Web components</title> | |
| </head> | |
| <body> | |
| <x-component></x-component> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/3.1.0/lodash.min.js"></script> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/EventEmitter/4.2.11/EventEmitter.min.js"></script> | |
| <script> | |
| var proto = Object.create(HTMLElement.prototype); | |
| _.assign(proto, EventEmitter.prototype); | |
| proto.name = 'Custom element' | |
| proto.alert = function(){ | |
| alert('This is '+this.name); | |
| }; | |
| proto.createdCallback = function(){ | |
| this.innerHTML = 'wait for it...'; | |
| console.log(this); | |
| this.on('foo', function(){ | |
| this.innerHTML = 'Hello world!'; | |
| }.bind(this)); | |
| setTimeout(function(){ | |
| this.trigger('foo'); | |
| }.bind(this), 1000); | |
| }; | |
| document.registerElement('x-component', { | |
| prototype: proto | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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