Created
April 8, 2016 20:02
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| <template> | |
| <require from="./numeric-input"></require> | |
| <numeric-input value.bind="value"></numeric-input> | |
| ${value} | |
| </template> |
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| export class App { | |
| value = ''; | |
| } |
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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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| <template> | |
| <input type="text" value.bind="value" placeholder.bind="placeholder"> | |
| </template> |
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| import { | |
| inject, | |
| bindable, | |
| bindingMode | |
| } from 'aurelia-framework'; | |
| // http://stackoverflow.com/a/995193/725866 | |
| function isNavigationOrSelectionKey(e) { | |
| // Allow: backspace, delete, tab, escape, enter and . | |
| if ([46, 8, 9, 27, 13, 110, 190].indexOf(e.keyCode) !== -1 || | |
| // Allow: Ctrl+A/X/C/V, Command+A/X/C/V | |
| ([65, 67, 86, 88].indexOf(e.keyCode) !== -1 && (e.ctrlKey === true || e.metaKey === true)) || | |
| // Allow: home, end, left, right, down, up | |
| (e.keyCode >= 35 && e.keyCode <= 40)) { | |
| // let it happen, don't do anything | |
| return true; | |
| } | |
| return false; | |
| } | |
| // http://stackoverflow.com/a/995193/725866 | |
| function keydown (e) { | |
| if (isNavigationOrSelectionKey(e)) { | |
| return; | |
| } | |
| // Ensure that it is a number and stop the keypress | |
| if ((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) { | |
| e.preventDefault(); | |
| } | |
| } | |
| @inject(Element) | |
| export class NumericInput { | |
| @bindable({ defaultBindingMode: bindingMode.twoWay }) value; | |
| @bindable placeholder = ''; | |
| constructor(element) { | |
| this.element = element; | |
| } | |
| attached() { | |
| this.element.addEventListener('keydown', keydown); | |
| } | |
| detached() { | |
| this.element.removeEventListener('keydown', keydown); | |
| } | |
| } |
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