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binding two values (test)
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| <template> | |
| <div> | |
| validator.value <input type="text" value.bind="validator.violatedConstraints"> | |
| </div> | |
| <div> | |
| bar.value <input type="text" value.bind="bar.value"> | |
| </div> | |
| <hr/> | |
| <p>validator.violatedConstraints is the source, bar.value is the target</p> | |
| <button click.trigger="start()">Start sync</button> | |
| <button click.trigger="stop()">Stop sync</button> | |
| </template> |
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| import {BindingEngine, bindingMode} from 'aurelia-binding'; | |
| import {inject} from 'aurelia-framework'; | |
| import {Validator} from './Validator' | |
| import {Bar} from './bar' | |
| @inject(BindingEngine) | |
| export class App { | |
| validator = new Validator(); | |
| bar = new Bar(); | |
| constructor(bindingEngine){ | |
| this.bindingEngine = bindingEngine; | |
| console.log() | |
| } | |
| stop( ){ | |
| this.binding.unbind(); | |
| this.binding = undefined; | |
| } | |
| start(){ | |
| let expression = this.bindingEngine.createBindingExpression('value', 'violatedConstraints', bindingMode.twoWay); | |
| this.binding = expression.createBinding(this.bar); | |
| // let scope = {validator: this.validator, bindingContext: this.validator}; | |
| let scope = {bindingContext: this.validator}; | |
| this.binding.bind(scope); | |
| } | |
| } |
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| export class Bar{ | |
| constructor(){ | |
| this.value = 50; | |
| } | |
| } |
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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://cdn.rawgit.com/jdanyow/aurelia-bundle/v1.0.3/jspm_packages/system.js"></script> | |
| <script src="https://cdn.rawgit.com/jdanyow/aurelia-bundle/v1.0.3/config.js"></script> | |
| <script> | |
| System.import('aurelia-bootstrapper'); | |
| </script> | |
| </body> | |
| </html> |
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| export class Validator{ | |
| constructor(){ | |
| this.violatedConstraints = 10; | |
| } | |
| } |
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