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June 1, 2016 22:20
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Aurelia RequireJS Gist
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| <template> | |
| <!-- Simple usage: --> | |
| <h1>message: ${async(message).value}</h1> | |
| <!-- With a placeholder: --> | |
| <h1>message: ${async(message).value ? async(message).value : '...'}</h1> | |
| </template> |
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| import {asyncBindings} from './enhance-promise'; | |
| import {computedFrom} from 'aurelia-framework'; | |
| @asyncBindings | |
| export default class App { | |
| @oneWay wtf; | |
| message = new Promise((resolve) => setTimeout(() => resolve('Hello World!'), 2000)); | |
| constructor() { | |
| console.log('wtf', this.wtf) | |
| } | |
| } | |
| // function cycle(definition, propertyName, descriptor) { | |
| // console.log(arguments) | |
| // } | |
| function oneWay(definition, propertyName, descriptor) { | |
| let val = 'ahahah'; | |
| return { | |
| set: function (value) { | |
| val = value; | |
| console.log('set', value); | |
| }, | |
| get: function() { | |
| console.log(this) | |
| return val; | |
| // console.log('get', val); | |
| }, | |
| enumerable: true, | |
| configurable: true | |
| }; | |
| // console.log(computedFrom('lala')) | |
| // console.log(arguments); | |
| // descriptor.get = function() { | |
| // return 'haha' | |
| // } | |
| } |
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| function enhancePromiseForAureliaBinding(promise) { | |
| if (!promise || typeof promise.then != 'function') return; | |
| if (promise.hasOwnProperty('value')) return promise; | |
| const observableGetter = function() { | |
| return; // this is the default value of the unresolved promise | |
| } | |
| observableGetter.getObserver = function(promise) { | |
| return { | |
| subscribe: function(context, binding) { | |
| promise.then(value => binding.updateTarget(value)); | |
| } | |
| } | |
| } | |
| Object.defineProperty(promise, 'value', { | |
| get: observableGetter, | |
| enumerable: true, | |
| configurable: true | |
| }) | |
| return promise; | |
| } | |
| export function asyncBindings(definition) { | |
| console.log(arguments) | |
| if (definition) { | |
| definition.prototype.async = enhancePromiseForAureliaBinding; | |
| } | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Aurelia</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| </head> | |
| <body aurelia-app> | |
| <h1>Loading...</h1> | |
| <script src="https://jdanyow.github.io/rjs-bundle/node_modules/requirejs/require.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/config.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/aurelia.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/babel.js"></script> | |
| <script> | |
| require(['aurelia-bootstrapper']); | |
| </script> | |
| </body> | |
| </html> |
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