@progress/kendo-angular-inputs
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Kendo UI for Angular Inputs Package - Everything you need to build professional form functionality (Checkbox, ColorGradient, ColorPalette, ColorPicker, FlatColorPicker, FormField, MaskedTextBox, NumericTextBox, RadioButton, RangeSlider, Slider, Switch, Te
276 lines (275 loc) • 10.2 kB
JavaScript
/**-----------------------------------------------------------------------------------------
* Copyright © 2025 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { Directive, ElementRef, EventEmitter, HostBinding, Renderer2, Optional, Inject, Input, NgZone, forwardRef, Output, ChangeDetectorRef, Injector } from '@angular/core';
import { NG_VALUE_ACCESSOR, NgControl } from '@angular/forms';
import { hasObservers, KendoInput, isDocumentAvailable } from '@progress/kendo-angular-common';
import { requiresZoneOnBlur } from '../common/utils';
import { RTL } from '@progress/kendo-angular-l10n';
import { fromEvent } from 'rxjs';
import { debounceTime, take } from 'rxjs/operators';
import * as i0 from "@angular/core";
/**
* Represents the [Kendo UI TextArea directive for the Inputs components for Angular]({% slug overview_textarea %}).
* Provides floating labels to `textarea` elements.
*
* @example
* ```ts-no-run
* <textarea kendoTextArea></textarea>
* ```
*/
export class TextAreaDirective {
renderer;
element;
zone;
changeDetector;
injector;
elementClasses = true;
autofillClass = true;
direction;
/**
* Fires each time the textarea value is changed.
*/
valueChange = new EventEmitter();
/**
* Specifies if the `textarea` element will resize its height automatically
* ([see example](slug:textarea_sizing#toc-auto-resizing)).
*
* @default false
*/
autoSize = false;
/**
* Specifies the textarea value.
*/
value;
/**
* @hidden
*/
onFocus = new EventEmitter();
/**
* @hidden
*/
onBlur = new EventEmitter();
/**
* @hidden
*/
onValueChange = new EventEmitter();
/**
* @hidden
*/
autoFillStart = new EventEmitter();
/**
* @hidden
*/
autoFillEnd = new EventEmitter();
get id() {
return this.element.nativeElement.id;
}
set id(id) {
this.renderer.setAttribute(this.element.nativeElement, 'id', id);
}
listeners = [];
inputSubscription;
initialHeight;
control;
resizeSubscription;
constructor(renderer, element, zone, changeDetector, injector, rtl) {
this.renderer = renderer;
this.element = element;
this.zone = zone;
this.changeDetector = changeDetector;
this.injector = injector;
this.direction = rtl ? 'rtl' : 'ltr';
}
/**
* @hidden
*/
writeValue(value) {
this.elementValue = value;
this.resize();
}
/**
* @hidden
*/
registerOnChange(fn) {
this.ngChange = fn;
}
/**
* @hidden
*/
registerOnTouched(fn) {
this.ngTouched = fn;
}
/**
* @hidden
*/
setDisabledState(isDisabled) {
this.setElementProperty('disabled', isDisabled);
}
ngOnInit() {
const element = this.element.nativeElement;
this.zone.runOutsideAngular(() => {
this.listeners = [
this.renderer.listen(element, 'focus', this.handleFocus.bind(this)),
this.renderer.listen(element, 'blur', this.handleBlur.bind(this)),
this.renderer.listen(element, 'animationstart', (e) => {
if (e.animationName === 'autoFillStart') {
this.autoFillStart.emit();
}
else if (e.animationName === 'autoFillEnd') {
this.autoFillEnd.emit();
}
})
];
if (isDocumentAvailable() && this.autoSize) {
this.resizeSubscription = fromEvent(window, 'resize')
.pipe((debounceTime(50)))
.subscribe(() => this.resize());
}
this.inputSubscription = fromEvent(element, 'input')
.subscribe(this.handleInput.bind(this));
});
this.control = this.injector.get(NgControl, null);
}
ngOnChanges(changes) {
const element = this.element.nativeElement;
if (changes.value) {
this.elementValue = this.value;
}
if (changes.autoSize) {
if (this.autoSize) {
this.initialHeight = element.offsetHeight;
this.renderer.setStyle(element, 'resize', 'none');
}
else {
this.renderer.setStyle(element, 'overflow-y', 'auto');
this.renderer.setStyle(element, 'resize', 'both');
element.style.height = `${this.initialHeight}px`;
}
}
this.zone.onStable.pipe(take(1)).subscribe(() => this.resize());
}
ngOnDestroy() {
this.listeners.forEach(listener => listener());
if (this.inputSubscription) {
this.inputSubscription.unsubscribe();
}
if (this.resizeSubscription) {
this.resizeSubscription.unsubscribe();
}
}
ngChange = (_) => { };
ngTouched = () => { };
get elementValue() {
if (this.element) {
return this.element.nativeElement.value;
}
return '';
}
set elementValue(value) {
this.setElementProperty('value', (value === undefined || value === null) ? '' : value);
}
setElementProperty(name, value) {
if (this.element) {
this.renderer.setProperty(this.element.nativeElement, name, value);
}
}
resize() {
if (!this.autoSize) {
return;
}
const element = this.element.nativeElement;
this.renderer.setStyle(element, 'overflow-y', 'hidden');
element.style.height = `${this.initialHeight}px`;
const scrollHeight = element.scrollHeight;
if (scrollHeight > this.initialHeight) {
element.style.height = `${scrollHeight}px`;
}
}
handleInput() {
const value = this.elementValue;
this.value = value;
if (this.control || hasObservers(this.onValueChange) || hasObservers(this.valueChange)) {
this.zone.run(() => {
this.ngChange(value);
this.onValueChange.emit(value);
this.valueChange.emit(value);
this.changeDetector.markForCheck();
});
}
this.resize();
}
handleFocus() {
if (hasObservers(this.onFocus)) {
this.zone.run(() => {
this.onFocus.emit();
});
}
}
handleBlur() {
if (hasObservers(this.onBlur) || requiresZoneOnBlur(this.control)) {
this.zone.run(() => {
this.ngTouched();
this.onBlur.emit();
this.changeDetector.markForCheck();
});
}
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TextAreaDirective, deps: [{ token: i0.Renderer2 }, { token: i0.ElementRef }, { token: i0.NgZone }, { token: i0.ChangeDetectorRef }, { token: i0.Injector }, { token: RTL, optional: true }], target: i0.ɵɵFactoryTarget.Directive });
static ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.2.12", type: TextAreaDirective, isStandalone: true, selector: "textarea[kendoTextArea]", inputs: { autoSize: "autoSize", value: "value" }, outputs: { valueChange: "valueChange" }, host: { properties: { "class.k-textarea": "this.elementClasses", "class.k-input": "this.elementClasses", "class.k-input-md": "this.elementClasses", "class.k-rounded-md": "this.elementClasses", "class.k-input-solid": "this.elementClasses", "class.k-autofill": "this.autofillClass", "attr.dir": "this.direction" } }, providers: [{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => TextAreaDirective),
multi: true
}, {
provide: KendoInput,
useExisting: forwardRef(() => TextAreaDirective)
}], usesOnChanges: true, ngImport: i0 });
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: TextAreaDirective, decorators: [{
type: Directive,
args: [{
providers: [{
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => TextAreaDirective),
multi: true
}, {
provide: KendoInput,
useExisting: forwardRef(() => TextAreaDirective)
}],
selector: 'textarea[kendoTextArea]',
standalone: true
}]
}], ctorParameters: function () { return [{ type: i0.Renderer2 }, { type: i0.ElementRef }, { type: i0.NgZone }, { type: i0.ChangeDetectorRef }, { type: i0.Injector }, { type: undefined, decorators: [{
type: Optional
}, {
type: Inject,
args: [RTL]
}] }]; }, propDecorators: { elementClasses: [{
type: HostBinding,
args: ['class.k-textarea']
}, {
type: HostBinding,
args: ['class.k-input']
}, {
type: HostBinding,
args: ['class.k-input-md']
}, {
type: HostBinding,
args: ['class.k-rounded-md']
}, {
type: HostBinding,
args: ['class.k-input-solid']
}], autofillClass: [{
type: HostBinding,
args: ['class.k-autofill']
}], direction: [{
type: HostBinding,
args: ['attr.dir']
}], valueChange: [{
type: Output
}], autoSize: [{
type: Input
}], value: [{
type: Input
}] } });