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Test: Automatic Number Conversion
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| <template> | |
| <style> | |
| input { display: block } | |
| pre { max-height: 50vh; overflow-y: auto; } | |
| </style> | |
| <require from="my-input-custom-element"></require> | |
| <require from="number-input-custom-element"></require> | |
| <require from="type-custom-attribute"></require> | |
| <div>type="number": <input type="number" value.bind="v1" /></div> | |
| <div>type="email" <input type="email" value.bind="v2" /></div> | |
| <div>number-input (opt in)<number-input type="number" value.bind="v4"><number-input></div> | |
| <div>my-input (opt out)<my-input type="number" value.bind="v3"></my-input></div> | |
| <pre scroll-down>${log}</pre> | |
| </template> |
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| import { observable, DOM, inject } from 'aurelia-framework'; | |
| export class App { | |
| _log = ['Log Initialized']; | |
| @observable v1 = 1; | |
| @observable v2 = 1; | |
| @observable v3 = 1; | |
| @observable v4 = 1; | |
| valueChanged(property, newVal) { | |
| this._log.push(`${property} updated: ${newVal} (${typeof(newVal)})`); | |
| } | |
| v1Changed = (v) => this.valueChanged('type="number"', v); | |
| v2Changed = (v) => this.valueChanged('type="email"', v); | |
| v3Changed = (v) => this.valueChanged('my-input (opt out)', v); | |
| v4Changed = (v) => this.valueChanged('number-input (opt in)', v); | |
| get log() { | |
| return this._log.join('\n'); | |
| } | |
| } | |
| @inject(DOM.Element) | |
| export class ScrollDownCustomAttribute { | |
| constructor(element) { | |
| let scrollHeight; | |
| const scrollDownRecursive = () => { | |
| if (element.scrollHeight !== scrollHeight) { | |
| element.scrollTop = element.scrollHeight; | |
| } | |
| scrollHeight = element.scrollHeight; | |
| requestAnimationFrame(scrollDownRecursive) | |
| } | |
| scrollDownRecursive(); | |
| } | |
| } |
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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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| import { inlineView, bindingMode, bindable } from 'aurelia-framework'; | |
| @inlineView('<template><input type="number" value.bind="value"></template>') | |
| export class MyInputCustomElement { | |
| @bindable({ defaultBindingMode: bindingMode.twoWay }) value; | |
| } |
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| import { inlineView, bindingMode, bindable } from 'aurelia-framework'; | |
| @inlineView('<template><require from="type-custom-attribute"></require><input type="number" value.bind="value"></template>') | |
| export class NumberInputCustomElement { | |
| @bindable({ defaultBindingMode: bindingMode.twoWay }) value; | |
| } |
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| import { inject, DOM } from 'aurelia-framework'; | |
| @inject(DOM.Element) | |
| export class TypeCustomAttribute { | |
| constructor(element) { | |
| this.element = element; | |
| } | |
| created(owningView) { | |
| this.owningView = owningView; | |
| } | |
| bind() { | |
| if (this.isNumberElement(this.element)) { | |
| let valueBinding = this.valueBinding = this.owningView.bindings | |
| .find(b => b.target === this.element && b.targetProperty === 'value'); | |
| if (valueBinding) { | |
| this.updateSource = valueBinding.updateSource; | |
| this.updateTarget = valueBinding.updateTarget; | |
| let updateSource = this.updateSource.bind(valueBinding); | |
| let updateTarget = this.updateTarget.bind(valueBinding); | |
| valueBinding.updateSource = (v) => ((v = parseFloat(v)) || v === 0) && updateSource(v); | |
| valueBinding.updateTarget = (v) => Number.isFinite(v) && updateTarget(v); | |
| } | |
| } | |
| } | |
| unbind() { | |
| if (this.valueBinding) { | |
| this.valueBinding.updateSource = this.updateSource; | |
| this.valueBinding.updateTarget = this.updateTarget; | |
| } | |
| } | |
| isNumberElement(element) { | |
| return /^input$/i.test(element.tagName) && /^number$/i.test(element.type); | |
| } | |
| } |
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