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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| <!-- | ||
| @license | ||
| Copyright (c) 2019 Vaadin Ltd. | ||
| This program is available under Apache License Version 2.0, available at https://vaadin.com/license/ | ||
| --> | ||
|
|
||
| <link rel="import" href="../../polymer/polymer-element.html"> | ||
| <link rel="import" href="../../polymer/lib/elements/custom-style.html"> | ||
| <link rel="import" href="vaadin-number-field.html"> | ||
|
|
||
| <dom-module id="vaadin-integer-field-template"> | ||
|
|
||
| <script> | ||
| (function() { | ||
|
|
||
| /** | ||
| * `<vaadin-integer-field>` is a Web Component for integer field control in forms. | ||
| * | ||
| * ```html | ||
| * <vaadin-integer-field label="Number"> | ||
| * </vaadin-integer-field> | ||
| * ``` | ||
| * | ||
| * @memberof Vaadin | ||
| * @extends Vaadin.NumberFieldElement | ||
| * @demo demo/index.html | ||
| */ | ||
| class IntegerFieldElement extends Vaadin.NumberFieldElement { | ||
| static get is() { | ||
| return 'vaadin-integer-field'; | ||
| } | ||
|
|
||
| static get version() { | ||
| return '2.4.11'; | ||
| } | ||
|
|
||
| ready() { | ||
| super.ready(); | ||
| this.inputElement.addEventListener('drop', this.__onDrop.bind(this)); | ||
| this.inputElement.addEventListener('paste', this.__onPaste.bind(this)); | ||
| } | ||
|
|
||
| _valueChanged(newVal, oldVal) { | ||
| if (newVal !== '' && !this.__isInteger(newVal)) { | ||
| console.warn(`Trying to set non-integer value "${newVal}" to <vaadin-integer-field>.` | ||
| + ` Clearing the value.`); | ||
| this.value = ''; | ||
| return; | ||
| } | ||
| super._valueChanged(newVal, oldVal); | ||
| } | ||
|
|
||
| _onKeyDown(e) { | ||
| if (!this.__shouldAcceptKey(e)) { | ||
| e.preventDefault(); | ||
| } | ||
| super._onKeyDown(e); | ||
| } | ||
|
|
||
| __shouldAcceptKey(event) { | ||
| return (event.metaKey || event.ctrlKey) | ||
| || !event.key // allow typing anything if event.key is not supported | ||
| || event.key.length !== 1 // allow "Backspace", "ArrowLeft" etc. | ||
| || /^[-+\d]$/.test(event.key); | ||
| } | ||
|
|
||
| __onDrop(e) { | ||
| const draggedText = e.dataTransfer.getData('text'); | ||
| if (!this.__isValidInput(draggedText)) { | ||
| e.preventDefault(); | ||
| } | ||
| } | ||
|
|
||
| __onPaste(e) { | ||
| const pastedText = (e.clipboardData || window.clipboardData).getData('text'); | ||
| if (!this.__isValidInput(pastedText)) { | ||
| e.preventDefault(); | ||
| } | ||
| } | ||
|
|
||
| _stepChanged(newVal, oldVal) { | ||
| if (!this.__hasOnlyDigits(newVal)) { | ||
| console.warn(`Trying to set invalid step size "${newVal}",` | ||
| + ` which is not a positive integer, to <vaadin-integer-field>.` | ||
| + ` Resetting the default value 1.`); | ||
| this.step = 1; | ||
| return; | ||
| } | ||
| super._stepChanged(newVal, oldVal); | ||
| } | ||
|
|
||
| __isInteger(value) { | ||
| return /^(-\d)?\d*$/.test(String(value)); | ||
| } | ||
|
|
||
| __isValidInput(value) { | ||
| return /^[\d+-]*$/.test(String(value)); | ||
| } | ||
|
|
||
| __hasOnlyDigits(value) { | ||
| return /^\d*$/.test(String(value)); | ||
| } | ||
| } | ||
|
|
||
| window.customElements.define(IntegerFieldElement.is, IntegerFieldElement); | ||
|
|
||
| /** | ||
| * @namespace Vaadin | ||
| */ | ||
| window.Vaadin = window.Vaadin || {}; | ||
| Vaadin.IntegerFieldElement = IntegerFieldElement; | ||
| })(); | ||
| </script> | ||
| </dom-module> |
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