@angular/material
Version:
Angular Material
114 lines • 17.9 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { DOCUMENT } from '@angular/common';
import { ANIMATION_MODULE_TYPE, ElementRef, Injectable, NgZone, inject, } from '@angular/core';
import { MAT_RIPPLE_GLOBAL_OPTIONS, MatRipple, RippleRenderer, } from '@angular/material/core';
import { Platform } from '@angular/cdk/platform';
import * as i0 from "@angular/core";
/** The options for the MatButtonRippleLoader's event listeners. */
const eventListenerOptions = { capture: true };
/** The events that should trigger the initialization of the ripple. */
const rippleInteractionEvents = ['focus', 'click', 'mouseenter', 'touchstart'];
/** The attribute attached to a mat-button whose ripple has not yet been initialized. */
export const MAT_BUTTON_RIPPLE_UNINITIALIZED = 'mat-button-ripple-uninitialized';
/**
* Handles attaching the MatButton's ripple on demand.
*
* This service allows us to avoid eagerly creating & attaching the MatButton's ripple.
* It works by creating & attaching the ripple only when a MatButton is first interacted with.
*/
class MatButtonLazyLoader {
constructor() {
this._document = inject(DOCUMENT, { optional: true });
this._animationMode = inject(ANIMATION_MODULE_TYPE, { optional: true });
this._globalRippleOptions = inject(MAT_RIPPLE_GLOBAL_OPTIONS, { optional: true });
this._platform = inject(Platform);
this._ngZone = inject(NgZone);
/** Handles creating and attaching button internals when a button is initially interacted with. */
this._onInteraction = (event) => {
if (event.target === this._document) {
return;
}
const eventTarget = event.target;
// TODO(wagnermaciel): Consider batching these events to improve runtime performance.
const button = eventTarget.closest(`[${MAT_BUTTON_RIPPLE_UNINITIALIZED}]`);
if (button) {
button.removeAttribute(MAT_BUTTON_RIPPLE_UNINITIALIZED);
this._appendRipple(button);
}
};
this._ngZone.runOutsideAngular(() => {
for (const event of rippleInteractionEvents) {
this._document?.addEventListener(event, this._onInteraction, eventListenerOptions);
}
});
}
ngOnDestroy() {
for (const event of rippleInteractionEvents) {
this._document?.removeEventListener(event, this._onInteraction, eventListenerOptions);
}
}
/** Creates a MatButtonRipple and appends it to the given button element. */
_appendRipple(button) {
if (!this._document) {
return;
}
const ripple = this._document.createElement('span');
ripple.classList.add('mat-mdc-button-ripple');
const target = new MatButtonRippleTarget(button, this._globalRippleOptions ? this._globalRippleOptions : undefined, this._animationMode ? this._animationMode : undefined);
target.rippleConfig.centered = button.hasAttribute('mat-icon-button');
const rippleRenderer = new RippleRenderer(target, this._ngZone, ripple, this._platform);
rippleRenderer.setupTriggerEvents(button);
button.append(ripple);
}
_createMatRipple(button) {
if (!this._document) {
return;
}
button.querySelector('.mat-mdc-button-ripple')?.remove();
button.removeAttribute(MAT_BUTTON_RIPPLE_UNINITIALIZED);
const rippleEl = this._document.createElement('span');
rippleEl.classList.add('mat-mdc-button-ripple');
const ripple = new MatRipple(new ElementRef(rippleEl), this._ngZone, this._platform, this._globalRippleOptions ? this._globalRippleOptions : undefined, this._animationMode ? this._animationMode : undefined);
ripple._isInitialized = true;
ripple.trigger = button;
button.append(rippleEl);
return ripple;
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.0.0", ngImport: i0, type: MatButtonLazyLoader, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.0.0", ngImport: i0, type: MatButtonLazyLoader, providedIn: 'root' }); }
}
export { MatButtonLazyLoader };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.0.0", ngImport: i0, type: MatButtonLazyLoader, decorators: [{
type: Injectable,
args: [{ providedIn: 'root' }]
}], ctorParameters: function () { return []; } });
/**
* The RippleTarget for the lazily rendered MatButton ripple.
* It handles ripple configuration and disabled state for ripples interactions.
*
* Note that this configuration is usually handled by the MatRipple, but the MatButtonLazyLoader does not use the
* MatRipple Directive. In order to create & attach a ripple on demand, it uses the "lower level" RippleRenderer.
*/
class MatButtonRippleTarget {
constructor(_button, _globalRippleOptions, animationMode) {
this._button = _button;
this._globalRippleOptions = _globalRippleOptions;
this._setRippleConfig(_globalRippleOptions, animationMode);
}
_setRippleConfig(globalRippleOptions, animationMode) {
this.rippleConfig = globalRippleOptions || {};
if (animationMode === 'NoopAnimations') {
this.rippleConfig.animation = { enterDuration: 0, exitDuration: 0 };
}
}
get rippleDisabled() {
return this._button.hasAttribute('disabled') || !!this._globalRippleOptions?.disabled;
}
}
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {DOCUMENT} from '@angular/common';\nimport {\n  ANIMATION_MODULE_TYPE,\n  ElementRef,\n  Injectable,\n  NgZone,\n  OnDestroy,\n  inject,\n} from '@angular/core';\nimport {\n  MAT_RIPPLE_GLOBAL_OPTIONS,\n  MatRipple,\n  RippleConfig,\n  RippleGlobalOptions,\n  RippleRenderer,\n  RippleTarget,\n} from '@angular/material/core';\nimport {Platform} from '@angular/cdk/platform';\n\n/** The options for the MatButtonRippleLoader's event listeners. */\nconst eventListenerOptions = {capture: true};\n\n/** The events that should trigger the initialization of the ripple. */\nconst rippleInteractionEvents = ['focus', 'click', 'mouseenter', 'touchstart'];\n\n/** The attribute attached to a mat-button whose ripple has not yet been initialized. */\nexport const MAT_BUTTON_RIPPLE_UNINITIALIZED = 'mat-button-ripple-uninitialized';\n\n/**\n * Handles attaching the MatButton's ripple on demand.\n *\n * This service allows us to avoid eagerly creating & attaching the MatButton's ripple.\n * It works by creating & attaching the ripple only when a MatButton is first interacted with.\n */\n@Injectable({providedIn: 'root'})\nexport class MatButtonLazyLoader implements OnDestroy {\n  private _document = inject(DOCUMENT, {optional: true});\n  private _animationMode = inject(ANIMATION_MODULE_TYPE, {optional: true});\n  private _globalRippleOptions = inject(MAT_RIPPLE_GLOBAL_OPTIONS, {optional: true});\n  private _platform = inject(Platform);\n  private _ngZone = inject(NgZone);\n\n  constructor() {\n    this._ngZone.runOutsideAngular(() => {\n      for (const event of rippleInteractionEvents) {\n        this._document?.addEventListener(event, this._onInteraction, eventListenerOptions);\n      }\n    });\n  }\n\n  ngOnDestroy() {\n    for (const event of rippleInteractionEvents) {\n      this._document?.removeEventListener(event, this._onInteraction, eventListenerOptions);\n    }\n  }\n\n  /** Handles creating and attaching button internals when a button is initially interacted with. */\n  private _onInteraction = (event: Event) => {\n    if (event.target === this._document) {\n      return;\n    }\n    const eventTarget = event.target as Element;\n\n    // TODO(wagnermaciel): Consider batching these events to improve runtime performance.\n\n    const button = eventTarget.closest(`[${MAT_BUTTON_RIPPLE_UNINITIALIZED}]`);\n    if (button) {\n      button.removeAttribute(MAT_BUTTON_RIPPLE_UNINITIALIZED);\n      this._appendRipple(button as HTMLElement);\n    }\n  };\n\n  /** Creates a MatButtonRipple and appends it to the given button element. */\n  private _appendRipple(button: HTMLElement): void {\n    if (!this._document) {\n      return;\n    }\n    const ripple = this._document.createElement('span');\n    ripple.classList.add('mat-mdc-button-ripple');\n\n    const target = new MatButtonRippleTarget(\n      button,\n      this._globalRippleOptions ? this._globalRippleOptions : undefined,\n      this._animationMode ? this._animationMode : undefined,\n    );\n    target.rippleConfig.centered = button.hasAttribute('mat-icon-button');\n\n    const rippleRenderer = new RippleRenderer(target, this._ngZone, ripple, this._platform);\n    rippleRenderer.setupTriggerEvents(button);\n    button.append(ripple);\n  }\n\n  _createMatRipple(button: HTMLElement): MatRipple | undefined {\n    if (!this._document) {\n      return;\n    }\n    button.querySelector('.mat-mdc-button-ripple')?.remove();\n    button.removeAttribute(MAT_BUTTON_RIPPLE_UNINITIALIZED);\n    const rippleEl = this._document!.createElement('span');\n    rippleEl.classList.add('mat-mdc-button-ripple');\n    const ripple = new MatRipple(\n      new ElementRef(rippleEl),\n      this._ngZone,\n      this._platform,\n      this._globalRippleOptions ? this._globalRippleOptions : undefined,\n      this._animationMode ? this._animationMode : undefined,\n    );\n    ripple._isInitialized = true;\n    ripple.trigger = button;\n    button.append(rippleEl);\n    return ripple;\n  }\n}\n\n/**\n * The RippleTarget for the lazily rendered MatButton ripple.\n * It handles ripple configuration and disabled state for ripples interactions.\n *\n * Note that this configuration is usually handled by the MatRipple, but the MatButtonLazyLoader does not use the\n * MatRipple Directive. In order to create & attach a ripple on demand, it uses the \"lower level\" RippleRenderer.\n */\nclass MatButtonRippleTarget implements RippleTarget {\n  rippleConfig: RippleConfig & RippleGlobalOptions;\n\n  constructor(\n    private _button: HTMLElement,\n    private _globalRippleOptions?: RippleGlobalOptions,\n    animationMode?: string,\n  ) {\n    this._setRippleConfig(_globalRippleOptions, animationMode);\n  }\n\n  private _setRippleConfig(globalRippleOptions?: RippleGlobalOptions, animationMode?: string) {\n    this.rippleConfig = globalRippleOptions || {};\n    if (animationMode === 'NoopAnimations') {\n      this.rippleConfig.animation = {enterDuration: 0, exitDuration: 0};\n    }\n  }\n\n  get rippleDisabled(): boolean {\n    return this._button.hasAttribute('disabled') || !!this._globalRippleOptions?.disabled;\n  }\n}\n"]}