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Guard Limits on number input
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| <template> | |
| <require from="./range-number-value-converter"></require> | |
| <label>Page Number</label> | |
| <input type="number" value.bind="pageNumber"><br> | |
| <label>Page Number using ValueConverter</label> | |
| <input type="number" value.bind="anotherPageNumber | rangeNumber:0:100"> | |
| </template> |
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| import { observable } from 'aurelia-framework'; | |
| const MIN = 0; | |
| const MAX = 100; | |
| export class App { | |
| @observable pageNumber; | |
| anotherPageNumber; | |
| pageNumberChanged(oldValue, newValue) { | |
| if (parseInt(newValue) > MAX) { | |
| this.pageNumber = MAX; | |
| } | |
| if (parseInt(newValue) < MIN) { | |
| this.pageNumber = MIN; | |
| } | |
| } | |
| } |
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| import {inject} from 'aurelia-dependency-injection' | |
| export class Action1Dependency {} | |
| export class Action2Dependency {} | |
| export class ActionBase{ | |
| } | |
| @inject(Action1Dependency) | |
| export class Action1 extends ActionBase{ | |
| constructor(dep){ | |
| super(); | |
| this.dep = dep; | |
| } | |
| } | |
| @inject(Action2Dependency) | |
| export class Action2 extends ActionBase{ | |
| constructor(dep){ | |
| super(); | |
| this.dep = dep; | |
| } | |
| } |
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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 RangeNumberValueConverter { | |
| fromView(value, minNumber, maxNumber) { | |
| if (parseInt(value) < minNumber) { | |
| return minNumber; | |
| } else if (parseInt(value) > maxNumber) { | |
| return maxNumber; | |
| } else { | |
| return value; | |
| } | |
| } | |
| } |
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