@angular/material
Version:
Angular Material
141 lines • 21.3 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 { FocusMonitor } from '@angular/cdk/a11y';
import { ChangeDetectionStrategy, Component, ElementRef, ViewEncapsulation, Inject, Optional, Input, ChangeDetectorRef, } from '@angular/core';
import { mixinDisabled, mixinDisableRipple, } from '@angular/material/core';
import { Subject } from 'rxjs';
import { DOCUMENT } from '@angular/common';
import { MAT_MENU_PANEL } from './menu-panel';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/a11y";
import * as i2 from "@angular/material/core";
import * as i3 from "@angular/common";
// Boilerplate for applying mixins to MatMenuItem.
/** @docs-private */
const _MatMenuItemBase = mixinDisableRipple(mixinDisabled(class {
}));
/**
* Single item inside of a `mat-menu`. Provides the menu item styling and accessibility treatment.
*/
export class MatMenuItem extends _MatMenuItemBase {
constructor(_elementRef, _document, _focusMonitor, _parentMenu, _changeDetectorRef) {
super();
this._elementRef = _elementRef;
this._document = _document;
this._focusMonitor = _focusMonitor;
this._parentMenu = _parentMenu;
this._changeDetectorRef = _changeDetectorRef;
/** ARIA role for the menu item. */
this.role = 'menuitem';
/** Stream that emits when the menu item is hovered. */
this._hovered = new Subject();
/** Stream that emits when the menu item is focused. */
this._focused = new Subject();
/** Whether the menu item is highlighted. */
this._highlighted = false;
/** Whether the menu item acts as a trigger for a sub-menu. */
this._triggersSubmenu = false;
_parentMenu?.addItem?.(this);
}
/** Focuses the menu item. */
focus(origin, options) {
if (this._focusMonitor && origin) {
this._focusMonitor.focusVia(this._getHostElement(), origin, options);
}
else {
this._getHostElement().focus(options);
}
this._focused.next(this);
}
ngAfterViewInit() {
if (this._focusMonitor) {
// Start monitoring the element so it gets the appropriate focused classes. We want
// to show the focus style for menu items only when the focus was not caused by a
// mouse or touch interaction.
this._focusMonitor.monitor(this._elementRef, false);
}
}
ngOnDestroy() {
if (this._focusMonitor) {
this._focusMonitor.stopMonitoring(this._elementRef);
}
if (this._parentMenu && this._parentMenu.removeItem) {
this._parentMenu.removeItem(this);
}
this._hovered.complete();
this._focused.complete();
}
/** Used to set the `tabindex`. */
_getTabIndex() {
return this.disabled ? '-1' : '0';
}
/** Returns the host DOM element. */
_getHostElement() {
return this._elementRef.nativeElement;
}
/** Prevents the default element actions if it is disabled. */
_checkDisabled(event) {
if (this.disabled) {
event.preventDefault();
event.stopPropagation();
}
}
/** Emits to the hover stream. */
_handleMouseEnter() {
this._hovered.next(this);
}
/** Gets the label to be used when determining whether the option should be focused. */
getLabel() {
const clone = this._elementRef.nativeElement.cloneNode(true);
const icons = clone.querySelectorAll('mat-icon, .material-icons');
// Strip away icons so they don't show up in the text.
for (let i = 0; i < icons.length; i++) {
icons[i].remove();
}
return clone.textContent?.trim() || '';
}
_setHighlighted(isHighlighted) {
// We need to mark this for check for the case where the content is coming from a
// `matMenuContent` whose change detection tree is at the declaration position,
// not the insertion position. See #23175.
// @breaking-change 12.0.0 Remove null check for `_changeDetectorRef`.
this._highlighted = isHighlighted;
this._changeDetectorRef?.markForCheck();
}
_hasFocus() {
return this._document && this._document.activeElement === this._getHostElement();
}
}
MatMenuItem.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.3.0", ngImport: i0, type: MatMenuItem, deps: [{ token: i0.ElementRef }, { token: DOCUMENT }, { token: i1.FocusMonitor }, { token: MAT_MENU_PANEL, optional: true }, { token: i0.ChangeDetectorRef }], target: i0.ɵɵFactoryTarget.Component });
MatMenuItem.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "13.3.0", type: MatMenuItem, selector: "[mat-menu-item]", inputs: { disabled: "disabled", disableRipple: "disableRipple", role: "role" }, host: { listeners: { "click": "_checkDisabled($event)", "mouseenter": "_handleMouseEnter()" }, properties: { "attr.role": "role", "class.mat-menu-item": "true", "class.mat-menu-item-highlighted": "_highlighted", "class.mat-menu-item-submenu-trigger": "_triggersSubmenu", "attr.tabindex": "_getTabIndex()", "attr.aria-disabled": "disabled.toString()", "attr.disabled": "disabled || null" }, classAttribute: "mat-focus-indicator" }, exportAs: ["matMenuItem"], usesInheritance: true, ngImport: i0, template: "<ng-content></ng-content>\n<div class=\"mat-menu-ripple\" matRipple\n [matRippleDisabled]=\"disableRipple || disabled\"\n [matRippleTrigger]=\"_getHostElement()\">\n</div>\n\n<svg\n *ngIf=\"_triggersSubmenu\"\n class=\"mat-menu-submenu-icon\"\n viewBox=\"0 0 5 10\"\n focusable=\"false\"><polygon points=\"0,0 5,5 0,10\"/></svg>\n", directives: [{ type: i2.MatRipple, selector: "[mat-ripple], [matRipple]", inputs: ["matRippleColor", "matRippleUnbounded", "matRippleCentered", "matRippleRadius", "matRippleAnimation", "matRippleDisabled", "matRippleTrigger"], exportAs: ["matRipple"] }, { type: i3.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }], changeDetection: i0.ChangeDetectionStrategy.OnPush, encapsulation: i0.ViewEncapsulation.None });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.3.0", ngImport: i0, type: MatMenuItem, decorators: [{
type: Component,
args: [{ selector: '[mat-menu-item]', exportAs: 'matMenuItem', inputs: ['disabled', 'disableRipple'], host: {
'[attr.role]': 'role',
'[class.mat-menu-item]': 'true',
'[class.mat-menu-item-highlighted]': '_highlighted',
'[class.mat-menu-item-submenu-trigger]': '_triggersSubmenu',
'[attr.tabindex]': '_getTabIndex()',
'[attr.aria-disabled]': 'disabled.toString()',
'[attr.disabled]': 'disabled || null',
'class': 'mat-focus-indicator',
'(click)': '_checkDisabled($event)',
'(mouseenter)': '_handleMouseEnter()',
}, changeDetection: ChangeDetectionStrategy.OnPush, encapsulation: ViewEncapsulation.None, template: "<ng-content></ng-content>\n<div class=\"mat-menu-ripple\" matRipple\n [matRippleDisabled]=\"disableRipple || disabled\"\n [matRippleTrigger]=\"_getHostElement()\">\n</div>\n\n<svg\n *ngIf=\"_triggersSubmenu\"\n class=\"mat-menu-submenu-icon\"\n viewBox=\"0 0 5 10\"\n focusable=\"false\"><polygon points=\"0,0 5,5 0,10\"/></svg>\n" }]
}], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: undefined, decorators: [{
type: Inject,
args: [DOCUMENT]
}] }, { type: i1.FocusMonitor }, { type: undefined, decorators: [{
type: Inject,
args: [MAT_MENU_PANEL]
}, {
type: Optional
}] }, { type: i0.ChangeDetectorRef }]; }, propDecorators: { role: [{
type: Input
}] } });
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Provides the menu item styling and accessibility treatment.\n */\n@Component({\n  selector: '[mat-menu-item]',\n  exportAs: 'matMenuItem',\n  inputs: ['disabled', 'disableRipple'],\n  host: {\n    '[attr.role]': 'role',\n    '[class.mat-menu-item]': 'true',\n    '[class.mat-menu-item-highlighted]': '_highlighted',\n    '[class.mat-menu-item-submenu-trigger]': '_triggersSubmenu',\n    '[attr.tabindex]': '_getTabIndex()',\n    '[attr.aria-disabled]': 'disabled.toString()',\n    '[attr.disabled]': 'disabled || null',\n    'class': 'mat-focus-indicator',\n    '(click)': '_checkDisabled($event)',\n    '(mouseenter)': '_handleMouseEnter()',\n  },\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  encapsulation: ViewEncapsulation.None,\n  templateUrl: 'menu-item.html',\n})\nexport class MatMenuItem\n  extends _MatMenuItemBase\n  implements FocusableOption, CanDisable, CanDisableRipple, AfterViewInit, OnDestroy\n{\n  /** ARIA role for the menu item. */\n  @Input() role: 'menuitem' | 'menuitemradio' | 'menuitemcheckbox' = 'menuitem';\n\n  /** Stream that emits when the menu item is hovered. */\n  readonly _hovered: Subject<MatMenuItem> = new Subject<MatMenuItem>();\n\n  /** Stream that emits when the menu item is focused. */\n  readonly _focused = new Subject<MatMenuItem>();\n\n  /** Whether the menu item is highlighted. */\n  _highlighted: boolean = false;\n\n  /** Whether the menu item acts as a trigger for a sub-menu. */\n  _triggersSubmenu: boolean = false;\n\n  constructor(\n    elementRef: ElementRef<HTMLElement>,\n    document: any,\n    focusMonitor: FocusMonitor,\n    parentMenu: MatMenuPanel<MatMenuItem> | undefined,\n    changeDetectorRef: ChangeDetectorRef,\n  );\n\n  /**\n   * @deprecated `document`, `changeDetectorRef` and `focusMonitor` to become required.\n   * @breaking-change 12.0.0\n   */\n  constructor(\n    elementRef: ElementRef<HTMLElement>,\n    document?: any,\n    focusMonitor?: FocusMonitor,\n    parentMenu?: MatMenuPanel<MatMenuItem>,\n    changeDetectorRef?: ChangeDetectorRef,\n  );\n\n  constructor(\n    private _elementRef: ElementRef<HTMLElement>,\n    @Inject(DOCUMENT) private _document?: any,\n    private _focusMonitor?: FocusMonitor,\n    @Inject(MAT_MENU_PANEL) @Optional() public _parentMenu?: MatMenuPanel<MatMenuItem>,\n    private _changeDetectorRef?: ChangeDetectorRef,\n  ) {\n    super();\n    _parentMenu?.addItem?.(this);\n  }\n\n  /** Focuses the menu item. */\n  focus(origin?: FocusOrigin, options?: FocusOptions): void {\n    if (this._focusMonitor && origin) {\n      this._focusMonitor.focusVia(this._getHostElement(), origin, options);\n    } else {\n      this._getHostElement().focus(options);\n    }\n\n    this._focused.next(this);\n  }\n\n  ngAfterViewInit() {\n    if (this._focusMonitor) {\n      // Start monitoring the element so it gets the appropriate focused classes. We want\n      // to show the focus style for menu items only when the focus was not caused by a\n      // mouse or touch interaction.\n      this._focusMonitor.monitor(this._elementRef, false);\n    }\n  }\n\n  ngOnDestroy() {\n    if (this._focusMonitor) {\n      this._focusMonitor.stopMonitoring(this._elementRef);\n    }\n\n    if (this._parentMenu && this._parentMenu.removeItem) {\n      this._parentMenu.removeItem(this);\n    }\n\n    this._hovered.complete();\n    this._focused.complete();\n  }\n\n  /** Used to set the `tabindex`. */\n  _getTabIndex(): string {\n    return this.disabled ? '-1' : '0';\n  }\n\n  /** Returns the host DOM element. */\n  _getHostElement(): HTMLElement {\n    return this._elementRef.nativeElement;\n  }\n\n  /** Prevents the default element actions if it is disabled. */\n  _checkDisabled(event: Event): void {\n    if (this.disabled) {\n      event.preventDefault();\n      event.stopPropagation();\n    }\n  }\n\n  /** Emits to the hover stream. */\n  _handleMouseEnter() {\n    this._hovered.next(this);\n  }\n\n  /** Gets the label to be used when determining whether the option should be focused. */\n  getLabel(): string {\n    const clone = this._elementRef.nativeElement.cloneNode(true) as HTMLElement;\n    const icons = clone.querySelectorAll('mat-icon, .material-icons');\n\n    // Strip away icons so they don't show up in the text.\n    for (let i = 0; i < icons.length; i++) {\n      icons[i].remove();\n    }\n\n    return clone.textContent?.trim() || '';\n  }\n\n  _setHighlighted(isHighlighted: boolean) {\n    // We need to mark this for check for the case where the content is coming from a\n    // `matMenuContent` whose change detection tree is at the declaration position,\n    // not the insertion position. See #23175.\n    // @breaking-change 12.0.0 Remove null check for `_changeDetectorRef`.\n    this._highlighted = isHighlighted;\n    this._changeDetectorRef?.markForCheck();\n  }\n\n  _hasFocus(): boolean {\n    return this._document && this._document.activeElement === this._getHostElement();\n  }\n}\n","<ng-content></ng-content>\n<div class=\"mat-menu-ripple\" matRipple\n     [matRippleDisabled]=\"disableRipple || disabled\"\n     [matRippleTrigger]=\"_getHostElement()\">\n</div>\n\n<svg\n  *ngIf=\"_triggersSubmenu\"\n  class=\"mat-menu-submenu-icon\"\n  viewBox=\"0 0 5 10\"\n  focusable=\"false\"><polygon points=\"0,0 5,5 0,10\"/></svg>\n"]}