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100 lines
4.4 KiB
100 lines
4.4 KiB
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import { BooleanInput, NumberInput } from '@angular/cdk/coercion';
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import { ElementRef, AfterViewInit, DoCheck, OnDestroy, NgZone } from '@angular/core';
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import { Platform } from '@angular/cdk/platform';
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/** Directive to automatically resize a textarea to fit its content. */
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import * as ɵngcc0 from '@angular/core';
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export declare class CdkTextareaAutosize implements AfterViewInit, DoCheck, OnDestroy {
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private _elementRef;
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private _platform;
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private _ngZone;
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/** Keep track of the previous textarea value to avoid resizing when the value hasn't changed. */
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private _previousValue?;
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private _initialHeight;
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private readonly _destroyed;
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private _minRows;
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private _maxRows;
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private _enabled;
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/**
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* Value of minRows as of last resize. If the minRows has decreased, the
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* height of the textarea needs to be recomputed to reflect the new minimum. The maxHeight
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* does not have the same problem because it does not affect the textarea's scrollHeight.
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*/
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private _previousMinRows;
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private _textareaElement;
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/** Minimum amount of rows in the textarea. */
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get minRows(): number;
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set minRows(value: number);
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/** Maximum amount of rows in the textarea. */
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get maxRows(): number;
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set maxRows(value: number);
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/** Whether autosizing is enabled or not */
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get enabled(): boolean;
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set enabled(value: boolean);
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get placeholder(): string;
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set placeholder(value: string);
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/** Cached height of a textarea with a single row. */
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private _cachedLineHeight;
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/** Cached height of a textarea with only the placeholder. */
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private _cachedPlaceholderHeight?;
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/** Used to reference correct document/window */
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protected _document?: Document;
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private _hasFocus;
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private _isViewInited;
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constructor(_elementRef: ElementRef<HTMLElement>, _platform: Platform, _ngZone: NgZone,
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/** @breaking-change 11.0.0 make document required */
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document?: any);
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/** Sets the minimum height of the textarea as determined by minRows. */
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_setMinHeight(): void;
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/** Sets the maximum height of the textarea as determined by maxRows. */
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_setMaxHeight(): void;
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ngAfterViewInit(): void;
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ngOnDestroy(): void;
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/**
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* Cache the height of a single-row textarea if it has not already been cached.
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*
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* We need to know how large a single "row" of a textarea is in order to apply minRows and
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* maxRows. For the initial version, we will assume that the height of a single line in the
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* textarea does not ever change.
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*/
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private _cacheTextareaLineHeight;
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private _measureScrollHeight;
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private _cacheTextareaPlaceholderHeight;
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/** Handles `focus` and `blur` events. */
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private _handleFocusEvent;
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ngDoCheck(): void;
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/**
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* Resize the textarea to fit its content.
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* @param force Whether to force a height recalculation. By default the height will be
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* recalculated only if the value changed since the last call.
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*/
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resizeToFitContent(force?: boolean): void;
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/**
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* Resets the textarea to its original size
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*/
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reset(): void;
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_noopInputHandler(): void;
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/** Access injected document if available or fallback to global document reference */
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private _getDocument;
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/** Use defaultView of injected document if available or fallback to global window reference */
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private _getWindow;
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/**
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* Scrolls a textarea to the caret position. On Firefox resizing the textarea will
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* prevent it from scrolling to the caret position. We need to re-set the selection
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* in order for it to scroll to the proper position.
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*/
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private _scrollToCaretPosition;
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static ngAcceptInputType_minRows: NumberInput;
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static ngAcceptInputType_maxRows: NumberInput;
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static ngAcceptInputType_enabled: BooleanInput;
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static ɵfac: ɵngcc0.ɵɵFactoryDeclaration<CdkTextareaAutosize, [null, null, null, { optional: true; }]>;
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static ɵdir: ɵngcc0.ɵɵDirectiveDeclaration<CdkTextareaAutosize, "textarea[cdkTextareaAutosize]", ["cdkTextareaAutosize"], { "minRows": "cdkAutosizeMinRows"; "maxRows": "cdkAutosizeMaxRows"; "enabled": "cdkTextareaAutosize"; "placeholder": "placeholder"; }, {}, never>;
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}
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//# sourceMappingURL=autosize.d.ts.map
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