| import { FocusMonitor, FocusKeyManager, isFakeTouchstartFromScreenReader, isFakeMousedownFromScreenReader } from '@angular/cdk/a11y'; |
| import { coerceBooleanProperty } from '@angular/cdk/coercion'; |
| import { UP_ARROW, DOWN_ARROW, RIGHT_ARROW, LEFT_ARROW, ESCAPE, hasModifierKey, ENTER, SPACE } from '@angular/cdk/keycodes'; |
| import { InjectionToken, Directive, TemplateRef, ComponentFactoryResolver, ApplicationRef, Injector, ViewContainerRef, Inject, ChangeDetectorRef, Component, ChangeDetectionStrategy, ViewEncapsulation, ElementRef, Optional, Input, HostListener, QueryList, EventEmitter, NgZone, ContentChildren, ViewChild, ContentChild, Output, Self, NgModule } from '@angular/core'; |
| import { Subject, Subscription, merge, of, asapScheduler } from 'rxjs'; |
| import { startWith, switchMap, take, filter, takeUntil, delay } from 'rxjs/operators'; |
| import { trigger, state, style, transition, animate } from '@angular/animations'; |
| import { TemplatePortal, DomPortalOutlet } from '@angular/cdk/portal'; |
| import { DOCUMENT, CommonModule } from '@angular/common'; |
| import { mixinDisableRipple, mixinDisabled, MatCommonModule, MatRippleModule } from '@angular/material/core'; |
| import { Directionality } from '@angular/cdk/bidi'; |
| import { Overlay, OverlayConfig, OverlayModule } from '@angular/cdk/overlay'; |
| import { normalizePassiveListenerOptions } from '@angular/cdk/platform'; |
| import { CdkScrollableModule } from '@angular/cdk/scrolling'; |
| |
| /** |
| * @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 |
| */ |
| /** |
| * Animations used by the mat-menu component. |
| * Animation duration and timing values are based on: |
| * https://material.io/guidelines/components/menus.html#menus-usage |
| * @docs-private |
| */ |
| const matMenuAnimations = { |
| /** |
| * This animation controls the menu panel's entry and exit from the page. |
| * |
| * When the menu panel is added to the DOM, it scales in and fades in its border. |
| * |
| * When the menu panel is removed from the DOM, it simply fades out after a brief |
| * delay to display the ripple. |
| */ |
| transformMenu: trigger('transformMenu', [ |
| state('void', style({ |
| opacity: 0, |
| transform: 'scale(0.8)' |
| })), |
| transition('void => enter', animate('120ms cubic-bezier(0, 0, 0.2, 1)', style({ |
| opacity: 1, |
| transform: 'scale(1)' |
| }))), |
| transition('* => void', animate('100ms 25ms linear', style({ opacity: 0 }))) |
| ]), |
| /** |
| * This animation fades in the background color and content of the menu panel |
| * after its containing element is scaled in. |
| */ |
| fadeInItems: trigger('fadeInItems', [ |
| // TODO(crisbeto): this is inside the `transformMenu` |
| // now. Remove next time we do breaking changes. |
| state('showing', style({ opacity: 1 })), |
| transition('void => *', [ |
| style({ opacity: 0 }), |
| animate('400ms 100ms cubic-bezier(0.55, 0, 0.55, 0.2)') |
| ]) |
| ]) |
| }; |
| /** |
| * @deprecated |
| * @breaking-change 8.0.0 |
| * @docs-private |
| */ |
| const fadeInItems = matMenuAnimations.fadeInItems; |
| /** |
| * @deprecated |
| * @breaking-change 8.0.0 |
| * @docs-private |
| */ |
| const transformMenu = matMenuAnimations.transformMenu; |
| |
| /** |
| * @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 |
| */ |
| /** |
| * Injection token that can be used to reference instances of `MatMenuContent`. It serves |
| * as alternative token to the actual `MatMenuContent` class which could cause unnecessary |
| * retention of the class and its directive metadata. |
| */ |
| const MAT_MENU_CONTENT = new InjectionToken('MatMenuContent'); |
| /** |
| * Menu content that will be rendered lazily once the menu is opened. |
| */ |
| class MatMenuContent { |
| constructor(_template, _componentFactoryResolver, _appRef, _injector, _viewContainerRef, _document, _changeDetectorRef) { |
| this._template = _template; |
| this._componentFactoryResolver = _componentFactoryResolver; |
| this._appRef = _appRef; |
| this._injector = _injector; |
| this._viewContainerRef = _viewContainerRef; |
| this._document = _document; |
| this._changeDetectorRef = _changeDetectorRef; |
| /** Emits when the menu content has been attached. */ |
| this._attached = new Subject(); |
| } |
| /** |
| * Attaches the content with a particular context. |
| * @docs-private |
| */ |
| attach(context = {}) { |
| if (!this._portal) { |
| this._portal = new TemplatePortal(this._template, this._viewContainerRef); |
| } |
| this.detach(); |
| if (!this._outlet) { |
| this._outlet = new DomPortalOutlet(this._document.createElement('div'), this._componentFactoryResolver, this._appRef, this._injector); |
| } |
| const element = this._template.elementRef.nativeElement; |
| // Because we support opening the same menu from different triggers (which in turn have their |
| // own `OverlayRef` panel), we have to re-insert the host element every time, otherwise we |
| // risk it staying attached to a pane that's no longer in the DOM. |
| element.parentNode.insertBefore(this._outlet.outletElement, element); |
| // When `MatMenuContent` is used in an `OnPush` component, the insertion of the menu |
| // content via `createEmbeddedView` does not cause the content to be seen as "dirty" |
| // by Angular. This causes the `@ContentChildren` for menu items within the menu to |
| // not be updated by Angular. By explicitly marking for check here, we tell Angular that |
| // it needs to check for new menu items and update the `@ContentChild` in `MatMenu`. |
| // @breaking-change 9.0.0 Make change detector ref required |
| if (this._changeDetectorRef) { |
| this._changeDetectorRef.markForCheck(); |
| } |
| this._portal.attach(this._outlet, context); |
| this._attached.next(); |
| } |
| /** |
| * Detaches the content. |
| * @docs-private |
| */ |
| detach() { |
| if (this._portal.isAttached) { |
| this._portal.detach(); |
| } |
| } |
| ngOnDestroy() { |
| if (this._outlet) { |
| this._outlet.dispose(); |
| } |
| } |
| } |
| MatMenuContent.decorators = [ |
| { type: Directive, args: [{ |
| selector: 'ng-template[matMenuContent]', |
| providers: [{ provide: MAT_MENU_CONTENT, useExisting: MatMenuContent }], |
| },] } |
| ]; |
| MatMenuContent.ctorParameters = () => [ |
| { type: TemplateRef }, |
| { type: ComponentFactoryResolver }, |
| { type: ApplicationRef }, |
| { type: Injector }, |
| { type: ViewContainerRef }, |
| { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }, |
| { type: ChangeDetectorRef } |
| ]; |
| |
| /** |
| * @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 |
| */ |
| /** |
| * Throws an exception for the case when menu trigger doesn't have a valid mat-menu instance |
| * @docs-private |
| */ |
| function throwMatMenuMissingError() { |
| throw Error(`matMenuTriggerFor: must pass in an mat-menu instance. |
| |
| Example: |
| <mat-menu #menu="matMenu"></mat-menu> |
| <button [matMenuTriggerFor]="menu"></button>`); |
| } |
| /** |
| * Throws an exception for the case when menu's x-position value isn't valid. |
| * In other words, it doesn't match 'before' or 'after'. |
| * @docs-private |
| */ |
| function throwMatMenuInvalidPositionX() { |
| throw Error(`xPosition value must be either 'before' or after'. |
| Example: <mat-menu xPosition="before" #menu="matMenu"></mat-menu>`); |
| } |
| /** |
| * Throws an exception for the case when menu's y-position value isn't valid. |
| * In other words, it doesn't match 'above' or 'below'. |
| * @docs-private |
| */ |
| function throwMatMenuInvalidPositionY() { |
| throw Error(`yPosition value must be either 'above' or below'. |
| Example: <mat-menu yPosition="above" #menu="matMenu"></mat-menu>`); |
| } |
| /** |
| * Throws an exception for the case when a menu is assigned |
| * to a trigger that is placed inside the same menu. |
| * @docs-private |
| */ |
| function throwMatMenuRecursiveError() { |
| throw Error(`matMenuTriggerFor: menu cannot contain its own trigger. Assign a menu that is ` + |
| `not a parent of the trigger or move the trigger outside of the menu.`); |
| } |
| |
| /** |
| * @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 |
| */ |
| /** |
| * Injection token used to provide the parent menu to menu-specific components. |
| * @docs-private |
| */ |
| const MAT_MENU_PANEL = new InjectionToken('MAT_MENU_PANEL'); |
| |
| /** |
| * @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 |
| */ |
| // Boilerplate for applying mixins to MatMenuItem. |
| /** @docs-private */ |
| class MatMenuItemBase { |
| } |
| const _MatMenuItemMixinBase = mixinDisableRipple(mixinDisabled(MatMenuItemBase)); |
| /** |
| * Single item inside of a `mat-menu`. Provides the menu item styling and accessibility treatment. |
| */ |
| class MatMenuItem extends _MatMenuItemMixinBase { |
| constructor(_elementRef, |
| /** |
| * @deprecated `_document` parameter is no longer being used and will be removed. |
| * @breaking-change 12.0.0 |
| */ |
| _document, _focusMonitor, _parentMenu) { |
| // @breaking-change 8.0.0 make `_focusMonitor` and `document` required params. |
| super(); |
| this._elementRef = _elementRef; |
| this._focusMonitor = _focusMonitor; |
| this._parentMenu = _parentMenu; |
| /** 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; |
| if (_parentMenu && _parentMenu.addItem) { |
| _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. */ |
| // We have to use a `HostListener` here in order to support both Ivy and ViewEngine. |
| // In Ivy the `host` bindings will be merged when this class is extended, whereas in |
| // ViewEngine they're overwritten. |
| // TODO(crisbeto): we move this back into `host` once Ivy is turned on by default. |
| // tslint:disable-next-line:no-host-decorator-in-concrete |
| _checkDisabled(event) { |
| if (this.disabled) { |
| event.preventDefault(); |
| event.stopPropagation(); |
| } |
| } |
| /** Emits to the hover stream. */ |
| // We have to use a `HostListener` here in order to support both Ivy and ViewEngine. |
| // In Ivy the `host` bindings will be merged when this class is extended, whereas in |
| // ViewEngine they're overwritten. |
| // TODO(crisbeto): we move this back into `host` once Ivy is turned on by default. |
| // tslint:disable-next-line:no-host-decorator-in-concrete |
| _handleMouseEnter() { |
| this._hovered.next(this); |
| } |
| /** Gets the label to be used when determining whether the option should be focused. */ |
| getLabel() { |
| var _a, _b; |
| 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++) { |
| const icon = icons[i]; |
| (_a = icon.parentNode) === null || _a === void 0 ? void 0 : _a.removeChild(icon); |
| } |
| return ((_b = clone.textContent) === null || _b === void 0 ? void 0 : _b.trim()) || ''; |
| } |
| } |
| 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', |
| }, |
| 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" |
| },] } |
| ]; |
| MatMenuItem.ctorParameters = () => [ |
| { type: ElementRef }, |
| { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }, |
| { type: FocusMonitor }, |
| { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_PANEL,] }, { type: Optional }] } |
| ]; |
| MatMenuItem.propDecorators = { |
| role: [{ type: Input }], |
| _checkDisabled: [{ type: HostListener, args: ['click', ['$event'],] }], |
| _handleMouseEnter: [{ type: HostListener, args: ['mouseenter',] }] |
| }; |
| |
| /** |
| * @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 |
| */ |
| /** Injection token to be used to override the default options for `mat-menu`. */ |
| const MAT_MENU_DEFAULT_OPTIONS = new InjectionToken('mat-menu-default-options', { |
| providedIn: 'root', |
| factory: MAT_MENU_DEFAULT_OPTIONS_FACTORY |
| }); |
| /** @docs-private */ |
| function MAT_MENU_DEFAULT_OPTIONS_FACTORY() { |
| return { |
| overlapTrigger: false, |
| xPosition: 'after', |
| yPosition: 'below', |
| backdropClass: 'cdk-overlay-transparent-backdrop', |
| }; |
| } |
| /** |
| * Start elevation for the menu panel. |
| * @docs-private |
| */ |
| const MAT_MENU_BASE_ELEVATION = 4; |
| let menuPanelUid = 0; |
| /** Base class with all of the `MatMenu` functionality. */ |
| class _MatMenuBase { |
| constructor(_elementRef, _ngZone, _defaultOptions) { |
| this._elementRef = _elementRef; |
| this._ngZone = _ngZone; |
| this._defaultOptions = _defaultOptions; |
| this._xPosition = this._defaultOptions.xPosition; |
| this._yPosition = this._defaultOptions.yPosition; |
| /** Only the direct descendant menu items. */ |
| this._directDescendantItems = new QueryList(); |
| /** Subscription to tab events on the menu panel */ |
| this._tabSubscription = Subscription.EMPTY; |
| /** Config object to be passed into the menu's ngClass */ |
| this._classList = {}; |
| /** Current state of the panel animation. */ |
| this._panelAnimationState = 'void'; |
| /** Emits whenever an animation on the menu completes. */ |
| this._animationDone = new Subject(); |
| /** Class or list of classes to be added to the overlay panel. */ |
| this.overlayPanelClass = this._defaultOptions.overlayPanelClass || ''; |
| /** Class to be added to the backdrop element. */ |
| this.backdropClass = this._defaultOptions.backdropClass; |
| this._overlapTrigger = this._defaultOptions.overlapTrigger; |
| this._hasBackdrop = this._defaultOptions.hasBackdrop; |
| /** Event emitted when the menu is closed. */ |
| this.closed = new EventEmitter(); |
| /** |
| * Event emitted when the menu is closed. |
| * @deprecated Switch to `closed` instead |
| * @breaking-change 8.0.0 |
| */ |
| this.close = this.closed; |
| this.panelId = `mat-menu-panel-${menuPanelUid++}`; |
| } |
| /** Position of the menu in the X axis. */ |
| get xPosition() { return this._xPosition; } |
| set xPosition(value) { |
| if (value !== 'before' && value !== 'after' && |
| (typeof ngDevMode === 'undefined' || ngDevMode)) { |
| throwMatMenuInvalidPositionX(); |
| } |
| this._xPosition = value; |
| this.setPositionClasses(); |
| } |
| /** Position of the menu in the Y axis. */ |
| get yPosition() { return this._yPosition; } |
| set yPosition(value) { |
| if (value !== 'above' && value !== 'below' && (typeof ngDevMode === 'undefined' || ngDevMode)) { |
| throwMatMenuInvalidPositionY(); |
| } |
| this._yPosition = value; |
| this.setPositionClasses(); |
| } |
| /** Whether the menu should overlap its trigger. */ |
| get overlapTrigger() { return this._overlapTrigger; } |
| set overlapTrigger(value) { |
| this._overlapTrigger = coerceBooleanProperty(value); |
| } |
| /** Whether the menu has a backdrop. */ |
| get hasBackdrop() { return this._hasBackdrop; } |
| set hasBackdrop(value) { |
| this._hasBackdrop = coerceBooleanProperty(value); |
| } |
| /** |
| * This method takes classes set on the host mat-menu element and applies them on the |
| * menu template that displays in the overlay container. Otherwise, it's difficult |
| * to style the containing menu from outside the component. |
| * @param classes list of class names |
| */ |
| set panelClass(classes) { |
| const previousPanelClass = this._previousPanelClass; |
| if (previousPanelClass && previousPanelClass.length) { |
| previousPanelClass.split(' ').forEach((className) => { |
| this._classList[className] = false; |
| }); |
| } |
| this._previousPanelClass = classes; |
| if (classes && classes.length) { |
| classes.split(' ').forEach((className) => { |
| this._classList[className] = true; |
| }); |
| this._elementRef.nativeElement.className = ''; |
| } |
| } |
| /** |
| * This method takes classes set on the host mat-menu element and applies them on the |
| * menu template that displays in the overlay container. Otherwise, it's difficult |
| * to style the containing menu from outside the component. |
| * @deprecated Use `panelClass` instead. |
| * @breaking-change 8.0.0 |
| */ |
| get classList() { return this.panelClass; } |
| set classList(classes) { this.panelClass = classes; } |
| ngOnInit() { |
| this.setPositionClasses(); |
| } |
| ngAfterContentInit() { |
| this._updateDirectDescendants(); |
| this._keyManager = new FocusKeyManager(this._directDescendantItems) |
| .withWrap() |
| .withTypeAhead() |
| .withHomeAndEnd(); |
| this._tabSubscription = this._keyManager.tabOut.subscribe(() => this.closed.emit('tab')); |
| // If a user manually (programmatically) focuses a menu item, we need to reflect that focus |
| // change back to the key manager. Note that we don't need to unsubscribe here because _focused |
| // is internal and we know that it gets completed on destroy. |
| this._directDescendantItems.changes.pipe(startWith(this._directDescendantItems), switchMap(items => merge(...items.map((item) => item._focused)))).subscribe(focusedItem => this._keyManager.updateActiveItem(focusedItem)); |
| } |
| ngOnDestroy() { |
| this._directDescendantItems.destroy(); |
| this._tabSubscription.unsubscribe(); |
| this.closed.complete(); |
| } |
| /** Stream that emits whenever the hovered menu item changes. */ |
| _hovered() { |
| // Coerce the `changes` property because Angular types it as `Observable<any>` |
| const itemChanges = this._directDescendantItems.changes; |
| return itemChanges.pipe(startWith(this._directDescendantItems), switchMap(items => merge(...items.map((item) => item._hovered)))); |
| } |
| /* |
| * Registers a menu item with the menu. |
| * @docs-private |
| * @deprecated No longer being used. To be removed. |
| * @breaking-change 9.0.0 |
| */ |
| addItem(_item) { } |
| /** |
| * Removes an item from the menu. |
| * @docs-private |
| * @deprecated No longer being used. To be removed. |
| * @breaking-change 9.0.0 |
| */ |
| removeItem(_item) { } |
| /** Handle a keyboard event from the menu, delegating to the appropriate action. */ |
| _handleKeydown(event) { |
| const keyCode = event.keyCode; |
| const manager = this._keyManager; |
| switch (keyCode) { |
| case ESCAPE: |
| if (!hasModifierKey(event)) { |
| event.preventDefault(); |
| this.closed.emit('keydown'); |
| } |
| break; |
| case LEFT_ARROW: |
| if (this.parentMenu && this.direction === 'ltr') { |
| this.closed.emit('keydown'); |
| } |
| break; |
| case RIGHT_ARROW: |
| if (this.parentMenu && this.direction === 'rtl') { |
| this.closed.emit('keydown'); |
| } |
| break; |
| default: |
| if (keyCode === UP_ARROW || keyCode === DOWN_ARROW) { |
| manager.setFocusOrigin('keyboard'); |
| } |
| manager.onKeydown(event); |
| } |
| } |
| /** |
| * Focus the first item in the menu. |
| * @param origin Action from which the focus originated. Used to set the correct styling. |
| */ |
| focusFirstItem(origin = 'program') { |
| // When the content is rendered lazily, it takes a bit before the items are inside the DOM. |
| if (this.lazyContent) { |
| this._ngZone.onStable |
| .pipe(take(1)) |
| .subscribe(() => this._focusFirstItem(origin)); |
| } |
| else { |
| this._focusFirstItem(origin); |
| } |
| } |
| /** |
| * Actual implementation that focuses the first item. Needs to be separated |
| * out so we don't repeat the same logic in the public `focusFirstItem` method. |
| */ |
| _focusFirstItem(origin) { |
| const manager = this._keyManager; |
| manager.setFocusOrigin(origin).setFirstItemActive(); |
| // If there's no active item at this point, it means that all the items are disabled. |
| // Move focus to the menu panel so keyboard events like Escape still work. Also this will |
| // give _some_ feedback to screen readers. |
| if (!manager.activeItem && this._directDescendantItems.length) { |
| let element = this._directDescendantItems.first._getHostElement().parentElement; |
| // Because the `mat-menu` is at the DOM insertion point, not inside the overlay, we don't |
| // have a nice way of getting a hold of the menu panel. We can't use a `ViewChild` either |
| // because the panel is inside an `ng-template`. We work around it by starting from one of |
| // the items and walking up the DOM. |
| while (element) { |
| if (element.getAttribute('role') === 'menu') { |
| element.focus(); |
| break; |
| } |
| else { |
| element = element.parentElement; |
| } |
| } |
| } |
| } |
| /** |
| * Resets the active item in the menu. This is used when the menu is opened, allowing |
| * the user to start from the first option when pressing the down arrow. |
| */ |
| resetActiveItem() { |
| this._keyManager.setActiveItem(-1); |
| } |
| /** |
| * Sets the menu panel elevation. |
| * @param depth Number of parent menus that come before the menu. |
| */ |
| setElevation(depth) { |
| // The elevation starts at the base and increases by one for each level. |
| // Capped at 24 because that's the maximum elevation defined in the Material design spec. |
| const elevation = Math.min(MAT_MENU_BASE_ELEVATION + depth, 24); |
| const newElevation = `mat-elevation-z${elevation}`; |
| const customElevation = Object.keys(this._classList).find(c => c.startsWith('mat-elevation-z')); |
| if (!customElevation || customElevation === this._previousElevation) { |
| if (this._previousElevation) { |
| this._classList[this._previousElevation] = false; |
| } |
| this._classList[newElevation] = true; |
| this._previousElevation = newElevation; |
| } |
| } |
| /** |
| * Adds classes to the menu panel based on its position. Can be used by |
| * consumers to add specific styling based on the position. |
| * @param posX Position of the menu along the x axis. |
| * @param posY Position of the menu along the y axis. |
| * @docs-private |
| */ |
| setPositionClasses(posX = this.xPosition, posY = this.yPosition) { |
| const classes = this._classList; |
| classes['mat-menu-before'] = posX === 'before'; |
| classes['mat-menu-after'] = posX === 'after'; |
| classes['mat-menu-above'] = posY === 'above'; |
| classes['mat-menu-below'] = posY === 'below'; |
| } |
| /** Starts the enter animation. */ |
| _startAnimation() { |
| // @breaking-change 8.0.0 Combine with _resetAnimation. |
| this._panelAnimationState = 'enter'; |
| } |
| /** Resets the panel animation to its initial state. */ |
| _resetAnimation() { |
| // @breaking-change 8.0.0 Combine with _startAnimation. |
| this._panelAnimationState = 'void'; |
| } |
| /** Callback that is invoked when the panel animation completes. */ |
| _onAnimationDone(event) { |
| this._animationDone.next(event); |
| this._isAnimating = false; |
| } |
| _onAnimationStart(event) { |
| this._isAnimating = true; |
| // Scroll the content element to the top as soon as the animation starts. This is necessary, |
| // because we move focus to the first item while it's still being animated, which can throw |
| // the browser off when it determines the scroll position. Alternatively we can move focus |
| // when the animation is done, however moving focus asynchronously will interrupt screen |
| // readers which are in the process of reading out the menu already. We take the `element` |
| // from the `event` since we can't use a `ViewChild` to access the pane. |
| if (event.toState === 'enter' && this._keyManager.activeItemIndex === 0) { |
| event.element.scrollTop = 0; |
| } |
| } |
| /** |
| * Sets up a stream that will keep track of any newly-added menu items and will update the list |
| * of direct descendants. We collect the descendants this way, because `_allItems` can include |
| * items that are part of child menus, and using a custom way of registering items is unreliable |
| * when it comes to maintaining the item order. |
| */ |
| _updateDirectDescendants() { |
| this._allItems.changes |
| .pipe(startWith(this._allItems)) |
| .subscribe((items) => { |
| this._directDescendantItems.reset(items.filter(item => item._parentMenu === this)); |
| this._directDescendantItems.notifyOnChanges(); |
| }); |
| } |
| } |
| _MatMenuBase.decorators = [ |
| { type: Directive } |
| ]; |
| _MatMenuBase.ctorParameters = () => [ |
| { type: ElementRef }, |
| { type: NgZone }, |
| { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_DEFAULT_OPTIONS,] }] } |
| ]; |
| _MatMenuBase.propDecorators = { |
| _allItems: [{ type: ContentChildren, args: [MatMenuItem, { descendants: true },] }], |
| backdropClass: [{ type: Input }], |
| ariaLabel: [{ type: Input, args: ['aria-label',] }], |
| ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }], |
| ariaDescribedby: [{ type: Input, args: ['aria-describedby',] }], |
| xPosition: [{ type: Input }], |
| yPosition: [{ type: Input }], |
| templateRef: [{ type: ViewChild, args: [TemplateRef,] }], |
| items: [{ type: ContentChildren, args: [MatMenuItem, { descendants: false },] }], |
| lazyContent: [{ type: ContentChild, args: [MAT_MENU_CONTENT,] }], |
| overlapTrigger: [{ type: Input }], |
| hasBackdrop: [{ type: Input }], |
| panelClass: [{ type: Input, args: ['class',] }], |
| classList: [{ type: Input }], |
| closed: [{ type: Output }], |
| close: [{ type: Output }] |
| }; |
| /** @docs-public MatMenu */ |
| class MatMenu extends _MatMenuBase { |
| constructor(elementRef, ngZone, defaultOptions) { |
| super(elementRef, ngZone, defaultOptions); |
| } |
| } |
| MatMenu.decorators = [ |
| { type: Component, args: [{ |
| selector: 'mat-menu', |
| template: "<ng-template>\n <div\n class=\"mat-menu-panel\"\n [id]=\"panelId\"\n [ngClass]=\"_classList\"\n (keydown)=\"_handleKeydown($event)\"\n (click)=\"closed.emit('click')\"\n [@transformMenu]=\"_panelAnimationState\"\n (@transformMenu.start)=\"_onAnimationStart($event)\"\n (@transformMenu.done)=\"_onAnimationDone($event)\"\n tabindex=\"-1\"\n role=\"menu\"\n [attr.aria-label]=\"ariaLabel || null\"\n [attr.aria-labelledby]=\"ariaLabelledby || null\"\n [attr.aria-describedby]=\"ariaDescribedby || null\">\n <div class=\"mat-menu-content\">\n <ng-content></ng-content>\n </div>\n </div>\n</ng-template>\n", |
| changeDetection: ChangeDetectionStrategy.OnPush, |
| encapsulation: ViewEncapsulation.None, |
| exportAs: 'matMenu', |
| host: { |
| '[attr.aria-label]': 'null', |
| '[attr.aria-labelledby]': 'null', |
| '[attr.aria-describedby]': 'null', |
| }, |
| animations: [ |
| matMenuAnimations.transformMenu, |
| matMenuAnimations.fadeInItems |
| ], |
| providers: [ |
| { provide: MAT_MENU_PANEL, useExisting: MatMenu }, |
| ], |
| styles: ["mat-menu{display:none}.mat-menu-panel{min-width:112px;max-width:280px;overflow:auto;-webkit-overflow-scrolling:touch;max-height:calc(100vh - 48px);border-radius:4px;outline:0;min-height:64px}.mat-menu-panel.ng-animating{pointer-events:none}.cdk-high-contrast-active .mat-menu-panel{outline:solid 1px}.mat-menu-content:not(:empty){padding-top:8px;padding-bottom:8px}.mat-menu-item{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;position:relative}.mat-menu-item::-moz-focus-inner{border:0}.mat-menu-item[disabled]{cursor:default}[dir=rtl] .mat-menu-item{text-align:right}.mat-menu-item .mat-icon{margin-right:16px;vertical-align:middle}.mat-menu-item .mat-icon svg{vertical-align:top}[dir=rtl] .mat-menu-item .mat-icon{margin-left:16px;margin-right:0}.mat-menu-item[disabled]{pointer-events:none}.cdk-high-contrast-active .mat-menu-item{margin-top:1px}.cdk-high-contrast-active .mat-menu-item.cdk-program-focused,.cdk-high-contrast-active .mat-menu-item.cdk-keyboard-focused,.cdk-high-contrast-active .mat-menu-item-highlighted{outline:dotted 1px}.mat-menu-item-submenu-trigger{padding-right:32px}.mat-menu-item-submenu-trigger::after{width:0;height:0;border-style:solid;border-width:5px 0 5px 5px;border-color:transparent transparent transparent currentColor;content:\"\";display:inline-block;position:absolute;top:50%;right:16px;transform:translateY(-50%)}[dir=rtl] .mat-menu-item-submenu-trigger{padding-right:16px;padding-left:32px}[dir=rtl] .mat-menu-item-submenu-trigger::after{right:auto;left:16px;transform:rotateY(180deg) translateY(-50%)}button.mat-menu-item{width:100%}.mat-menu-item .mat-menu-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}\n"] |
| },] } |
| ]; |
| MatMenu.ctorParameters = () => [ |
| { type: ElementRef }, |
| { type: NgZone }, |
| { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_DEFAULT_OPTIONS,] }] } |
| ]; |
| |
| /** |
| * @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 |
| */ |
| /** Injection token that determines the scroll handling while the menu is open. */ |
| const MAT_MENU_SCROLL_STRATEGY = new InjectionToken('mat-menu-scroll-strategy'); |
| /** @docs-private */ |
| function MAT_MENU_SCROLL_STRATEGY_FACTORY(overlay) { |
| return () => overlay.scrollStrategies.reposition(); |
| } |
| /** @docs-private */ |
| const MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER = { |
| provide: MAT_MENU_SCROLL_STRATEGY, |
| deps: [Overlay], |
| useFactory: MAT_MENU_SCROLL_STRATEGY_FACTORY, |
| }; |
| /** Default top padding of the menu panel. */ |
| const MENU_PANEL_TOP_PADDING = 8; |
| /** Options for binding a passive event listener. */ |
| const passiveEventListenerOptions = normalizePassiveListenerOptions({ passive: true }); |
| // TODO(andrewseguin): Remove the kebab versions in favor of camelCased attribute selectors |
| /** Directive applied to an element that should trigger a `mat-menu`. */ |
| class MatMenuTrigger { |
| constructor(_overlay, _element, _viewContainerRef, scrollStrategy, parentMenu, |
| // `MatMenuTrigger` is commonly used in combination with a `MatMenuItem`. |
| // tslint:disable-next-line: lightweight-tokens |
| _menuItemInstance, _dir, |
| // TODO(crisbeto): make the _focusMonitor required when doing breaking changes. |
| // @breaking-change 8.0.0 |
| _focusMonitor) { |
| this._overlay = _overlay; |
| this._element = _element; |
| this._viewContainerRef = _viewContainerRef; |
| this._menuItemInstance = _menuItemInstance; |
| this._dir = _dir; |
| this._focusMonitor = _focusMonitor; |
| this._overlayRef = null; |
| this._menuOpen = false; |
| this._closingActionsSubscription = Subscription.EMPTY; |
| this._hoverSubscription = Subscription.EMPTY; |
| this._menuCloseSubscription = Subscription.EMPTY; |
| /** |
| * Handles touch start events on the trigger. |
| * Needs to be an arrow function so we can easily use addEventListener and removeEventListener. |
| */ |
| this._handleTouchStart = (event) => { |
| if (!isFakeTouchstartFromScreenReader(event)) { |
| this._openedBy = 'touch'; |
| } |
| }; |
| // Tracking input type is necessary so it's possible to only auto-focus |
| // the first item of the list when the menu is opened via the keyboard |
| this._openedBy = undefined; |
| /** |
| * Whether focus should be restored when the menu is closed. |
| * Note that disabling this option can have accessibility implications |
| * and it's up to you to manage focus, if you decide to turn it off. |
| */ |
| this.restoreFocus = true; |
| /** Event emitted when the associated menu is opened. */ |
| this.menuOpened = new EventEmitter(); |
| /** |
| * Event emitted when the associated menu is opened. |
| * @deprecated Switch to `menuOpened` instead |
| * @breaking-change 8.0.0 |
| */ |
| // tslint:disable-next-line:no-output-on-prefix |
| this.onMenuOpen = this.menuOpened; |
| /** Event emitted when the associated menu is closed. */ |
| this.menuClosed = new EventEmitter(); |
| /** |
| * Event emitted when the associated menu is closed. |
| * @deprecated Switch to `menuClosed` instead |
| * @breaking-change 8.0.0 |
| */ |
| // tslint:disable-next-line:no-output-on-prefix |
| this.onMenuClose = this.menuClosed; |
| this._scrollStrategy = scrollStrategy; |
| this._parentMaterialMenu = parentMenu instanceof _MatMenuBase ? parentMenu : undefined; |
| _element.nativeElement.addEventListener('touchstart', this._handleTouchStart, passiveEventListenerOptions); |
| if (_menuItemInstance) { |
| _menuItemInstance._triggersSubmenu = this.triggersSubmenu(); |
| } |
| } |
| /** |
| * @deprecated |
| * @breaking-change 8.0.0 |
| */ |
| get _deprecatedMatMenuTriggerFor() { return this.menu; } |
| set _deprecatedMatMenuTriggerFor(v) { |
| this.menu = v; |
| } |
| /** References the menu instance that the trigger is associated with. */ |
| get menu() { return this._menu; } |
| set menu(menu) { |
| if (menu === this._menu) { |
| return; |
| } |
| this._menu = menu; |
| this._menuCloseSubscription.unsubscribe(); |
| if (menu) { |
| if (menu === this._parentMaterialMenu && (typeof ngDevMode === 'undefined' || ngDevMode)) { |
| throwMatMenuRecursiveError(); |
| } |
| this._menuCloseSubscription = menu.close.subscribe((reason) => { |
| this._destroyMenu(reason); |
| // If a click closed the menu, we should close the entire chain of nested menus. |
| if ((reason === 'click' || reason === 'tab') && this._parentMaterialMenu) { |
| this._parentMaterialMenu.closed.emit(reason); |
| } |
| }); |
| } |
| } |
| ngAfterContentInit() { |
| this._checkMenu(); |
| this._handleHover(); |
| } |
| ngOnDestroy() { |
| if (this._overlayRef) { |
| this._overlayRef.dispose(); |
| this._overlayRef = null; |
| } |
| this._element.nativeElement.removeEventListener('touchstart', this._handleTouchStart, passiveEventListenerOptions); |
| this._menuCloseSubscription.unsubscribe(); |
| this._closingActionsSubscription.unsubscribe(); |
| this._hoverSubscription.unsubscribe(); |
| } |
| /** Whether the menu is open. */ |
| get menuOpen() { |
| return this._menuOpen; |
| } |
| /** The text direction of the containing app. */ |
| get dir() { |
| return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr'; |
| } |
| /** Whether the menu triggers a sub-menu or a top-level one. */ |
| triggersSubmenu() { |
| return !!(this._menuItemInstance && this._parentMaterialMenu); |
| } |
| /** Toggles the menu between the open and closed states. */ |
| toggleMenu() { |
| return this._menuOpen ? this.closeMenu() : this.openMenu(); |
| } |
| /** Opens the menu. */ |
| openMenu() { |
| if (this._menuOpen) { |
| return; |
| } |
| this._checkMenu(); |
| const overlayRef = this._createOverlay(); |
| const overlayConfig = overlayRef.getConfig(); |
| this._setPosition(overlayConfig.positionStrategy); |
| overlayConfig.hasBackdrop = this.menu.hasBackdrop == null ? !this.triggersSubmenu() : |
| this.menu.hasBackdrop; |
| overlayRef.attach(this._getPortal()); |
| if (this.menu.lazyContent) { |
| this.menu.lazyContent.attach(this.menuData); |
| } |
| this._closingActionsSubscription = this._menuClosingActions().subscribe(() => this.closeMenu()); |
| this._initMenu(); |
| if (this.menu instanceof _MatMenuBase) { |
| this.menu._startAnimation(); |
| } |
| } |
| /** Closes the menu. */ |
| closeMenu() { |
| this.menu.close.emit(); |
| } |
| /** |
| * Focuses the menu trigger. |
| * @param origin Source of the menu trigger's focus. |
| */ |
| focus(origin, options) { |
| if (this._focusMonitor && origin) { |
| this._focusMonitor.focusVia(this._element, origin, options); |
| } |
| else { |
| this._element.nativeElement.focus(options); |
| } |
| } |
| /** Closes the menu and does the necessary cleanup. */ |
| _destroyMenu(reason) { |
| if (!this._overlayRef || !this.menuOpen) { |
| return; |
| } |
| const menu = this.menu; |
| this._closingActionsSubscription.unsubscribe(); |
| this._overlayRef.detach(); |
| // Always restore focus if the user is navigating using the keyboard or the menu was opened |
| // programmatically. We don't restore for non-root triggers, because it can prevent focus |
| // from making it back to the root trigger when closing a long chain of menus by clicking |
| // on the backdrop. |
| if (this.restoreFocus && (reason === 'keydown' || !this._openedBy || !this.triggersSubmenu())) { |
| this.focus(this._openedBy); |
| } |
| this._openedBy = undefined; |
| if (menu instanceof _MatMenuBase) { |
| menu._resetAnimation(); |
| if (menu.lazyContent) { |
| // Wait for the exit animation to finish before detaching the content. |
| menu._animationDone |
| .pipe(filter(event => event.toState === 'void'), take(1), |
| // Interrupt if the content got re-attached. |
| takeUntil(menu.lazyContent._attached)) |
| .subscribe({ |
| next: () => menu.lazyContent.detach(), |
| // No matter whether the content got re-attached, reset the menu. |
| complete: () => this._setIsMenuOpen(false) |
| }); |
| } |
| else { |
| this._setIsMenuOpen(false); |
| } |
| } |
| else { |
| this._setIsMenuOpen(false); |
| if (menu.lazyContent) { |
| menu.lazyContent.detach(); |
| } |
| } |
| } |
| /** |
| * This method sets the menu state to open and focuses the first item if |
| * the menu was opened via the keyboard. |
| */ |
| _initMenu() { |
| this.menu.parentMenu = this.triggersSubmenu() ? this._parentMaterialMenu : undefined; |
| this.menu.direction = this.dir; |
| this._setMenuElevation(); |
| this.menu.focusFirstItem(this._openedBy || 'program'); |
| this._setIsMenuOpen(true); |
| } |
| /** Updates the menu elevation based on the amount of parent menus that it has. */ |
| _setMenuElevation() { |
| if (this.menu.setElevation) { |
| let depth = 0; |
| let parentMenu = this.menu.parentMenu; |
| while (parentMenu) { |
| depth++; |
| parentMenu = parentMenu.parentMenu; |
| } |
| this.menu.setElevation(depth); |
| } |
| } |
| // set state rather than toggle to support triggers sharing a menu |
| _setIsMenuOpen(isOpen) { |
| this._menuOpen = isOpen; |
| this._menuOpen ? this.menuOpened.emit() : this.menuClosed.emit(); |
| if (this.triggersSubmenu()) { |
| this._menuItemInstance._highlighted = isOpen; |
| } |
| } |
| /** |
| * This method checks that a valid instance of MatMenu has been passed into |
| * matMenuTriggerFor. If not, an exception is thrown. |
| */ |
| _checkMenu() { |
| if (!this.menu && (typeof ngDevMode === 'undefined' || ngDevMode)) { |
| throwMatMenuMissingError(); |
| } |
| } |
| /** |
| * This method creates the overlay from the provided menu's template and saves its |
| * OverlayRef so that it can be attached to the DOM when openMenu is called. |
| */ |
| _createOverlay() { |
| if (!this._overlayRef) { |
| const config = this._getOverlayConfig(); |
| this._subscribeToPositions(config.positionStrategy); |
| this._overlayRef = this._overlay.create(config); |
| // Consume the `keydownEvents` in order to prevent them from going to another overlay. |
| // Ideally we'd also have our keyboard event logic in here, however doing so will |
| // break anybody that may have implemented the `MatMenuPanel` themselves. |
| this._overlayRef.keydownEvents().subscribe(); |
| } |
| return this._overlayRef; |
| } |
| /** |
| * This method builds the configuration object needed to create the overlay, the OverlayState. |
| * @returns OverlayConfig |
| */ |
| _getOverlayConfig() { |
| return new OverlayConfig({ |
| positionStrategy: this._overlay.position() |
| .flexibleConnectedTo(this._element) |
| .withLockedPosition() |
| .withGrowAfterOpen() |
| .withTransformOriginOn('.mat-menu-panel, .mat-mdc-menu-panel'), |
| backdropClass: this.menu.backdropClass || 'cdk-overlay-transparent-backdrop', |
| panelClass: this.menu.overlayPanelClass, |
| scrollStrategy: this._scrollStrategy(), |
| direction: this._dir |
| }); |
| } |
| /** |
| * Listens to changes in the position of the overlay and sets the correct classes |
| * on the menu based on the new position. This ensures the animation origin is always |
| * correct, even if a fallback position is used for the overlay. |
| */ |
| _subscribeToPositions(position) { |
| if (this.menu.setPositionClasses) { |
| position.positionChanges.subscribe(change => { |
| const posX = change.connectionPair.overlayX === 'start' ? 'after' : 'before'; |
| const posY = change.connectionPair.overlayY === 'top' ? 'below' : 'above'; |
| this.menu.setPositionClasses(posX, posY); |
| }); |
| } |
| } |
| /** |
| * Sets the appropriate positions on a position strategy |
| * so the overlay connects with the trigger correctly. |
| * @param positionStrategy Strategy whose position to update. |
| */ |
| _setPosition(positionStrategy) { |
| let [originX, originFallbackX] = this.menu.xPosition === 'before' ? ['end', 'start'] : ['start', 'end']; |
| let [overlayY, overlayFallbackY] = this.menu.yPosition === 'above' ? ['bottom', 'top'] : ['top', 'bottom']; |
| let [originY, originFallbackY] = [overlayY, overlayFallbackY]; |
| let [overlayX, overlayFallbackX] = [originX, originFallbackX]; |
| let offsetY = 0; |
| if (this.triggersSubmenu()) { |
| // When the menu is a sub-menu, it should always align itself |
| // to the edges of the trigger, instead of overlapping it. |
| overlayFallbackX = originX = this.menu.xPosition === 'before' ? 'start' : 'end'; |
| originFallbackX = overlayX = originX === 'end' ? 'start' : 'end'; |
| offsetY = overlayY === 'bottom' ? MENU_PANEL_TOP_PADDING : -MENU_PANEL_TOP_PADDING; |
| } |
| else if (!this.menu.overlapTrigger) { |
| originY = overlayY === 'top' ? 'bottom' : 'top'; |
| originFallbackY = overlayFallbackY === 'top' ? 'bottom' : 'top'; |
| } |
| positionStrategy.withPositions([ |
| { originX, originY, overlayX, overlayY, offsetY }, |
| { originX: originFallbackX, originY, overlayX: overlayFallbackX, overlayY, offsetY }, |
| { |
| originX, |
| originY: originFallbackY, |
| overlayX, |
| overlayY: overlayFallbackY, |
| offsetY: -offsetY |
| }, |
| { |
| originX: originFallbackX, |
| originY: originFallbackY, |
| overlayX: overlayFallbackX, |
| overlayY: overlayFallbackY, |
| offsetY: -offsetY |
| } |
| ]); |
| } |
| /** Returns a stream that emits whenever an action that should close the menu occurs. */ |
| _menuClosingActions() { |
| const backdrop = this._overlayRef.backdropClick(); |
| const detachments = this._overlayRef.detachments(); |
| const parentClose = this._parentMaterialMenu ? this._parentMaterialMenu.closed : of(); |
| const hover = this._parentMaterialMenu ? this._parentMaterialMenu._hovered().pipe(filter(active => active !== this._menuItemInstance), filter(() => this._menuOpen)) : of(); |
| return merge(backdrop, parentClose, hover, detachments); |
| } |
| /** Handles mouse presses on the trigger. */ |
| _handleMousedown(event) { |
| if (!isFakeMousedownFromScreenReader(event)) { |
| // Since right or middle button clicks won't trigger the `click` event, |
| // we shouldn't consider the menu as opened by mouse in those cases. |
| this._openedBy = event.button === 0 ? 'mouse' : undefined; |
| // Since clicking on the trigger won't close the menu if it opens a sub-menu, |
| // we should prevent focus from moving onto it via click to avoid the |
| // highlight from lingering on the menu item. |
| if (this.triggersSubmenu()) { |
| event.preventDefault(); |
| } |
| } |
| } |
| /** Handles key presses on the trigger. */ |
| _handleKeydown(event) { |
| const keyCode = event.keyCode; |
| // Pressing enter on the trigger will trigger the click handler later. |
| if (keyCode === ENTER || keyCode === SPACE) { |
| this._openedBy = 'keyboard'; |
| } |
| if (this.triggersSubmenu() && ((keyCode === RIGHT_ARROW && this.dir === 'ltr') || |
| (keyCode === LEFT_ARROW && this.dir === 'rtl'))) { |
| this._openedBy = 'keyboard'; |
| this.openMenu(); |
| } |
| } |
| /** Handles click events on the trigger. */ |
| _handleClick(event) { |
| if (this.triggersSubmenu()) { |
| // Stop event propagation to avoid closing the parent menu. |
| event.stopPropagation(); |
| this.openMenu(); |
| } |
| else { |
| this.toggleMenu(); |
| } |
| } |
| /** Handles the cases where the user hovers over the trigger. */ |
| _handleHover() { |
| // Subscribe to changes in the hovered item in order to toggle the panel. |
| if (!this.triggersSubmenu() || !this._parentMaterialMenu) { |
| return; |
| } |
| this._hoverSubscription = this._parentMaterialMenu._hovered() |
| // Since we might have multiple competing triggers for the same menu (e.g. a sub-menu |
| // with different data and triggers), we have to delay it by a tick to ensure that |
| // it won't be closed immediately after it is opened. |
| .pipe(filter(active => active === this._menuItemInstance && !active.disabled), delay(0, asapScheduler)) |
| .subscribe(() => { |
| this._openedBy = 'mouse'; |
| // If the same menu is used between multiple triggers, it might still be animating |
| // while the new trigger tries to re-open it. Wait for the animation to finish |
| // before doing so. Also interrupt if the user moves to another item. |
| if (this.menu instanceof _MatMenuBase && this.menu._isAnimating) { |
| // We need the `delay(0)` here in order to avoid |
| // 'changed after checked' errors in some cases. See #12194. |
| this.menu._animationDone |
| .pipe(take(1), delay(0, asapScheduler), takeUntil(this._parentMaterialMenu._hovered())) |
| .subscribe(() => this.openMenu()); |
| } |
| else { |
| this.openMenu(); |
| } |
| }); |
| } |
| /** Gets the portal that should be attached to the overlay. */ |
| _getPortal() { |
| // Note that we can avoid this check by keeping the portal on the menu panel. |
| // While it would be cleaner, we'd have to introduce another required method on |
| // `MatMenuPanel`, making it harder to consume. |
| if (!this._portal || this._portal.templateRef !== this.menu.templateRef) { |
| this._portal = new TemplatePortal(this.menu.templateRef, this._viewContainerRef); |
| } |
| return this._portal; |
| } |
| } |
| MatMenuTrigger.decorators = [ |
| { type: Directive, args: [{ |
| selector: `[mat-menu-trigger-for], [matMenuTriggerFor]`, |
| host: { |
| 'class': 'mat-menu-trigger', |
| 'aria-haspopup': 'true', |
| '[attr.aria-expanded]': 'menuOpen || null', |
| '[attr.aria-controls]': 'menuOpen ? menu.panelId : null', |
| '(mousedown)': '_handleMousedown($event)', |
| '(keydown)': '_handleKeydown($event)', |
| '(click)': '_handleClick($event)', |
| }, |
| exportAs: 'matMenuTrigger' |
| },] } |
| ]; |
| MatMenuTrigger.ctorParameters = () => [ |
| { type: Overlay }, |
| { type: ElementRef }, |
| { type: ViewContainerRef }, |
| { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_SCROLL_STRATEGY,] }] }, |
| { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_PANEL,] }, { type: Optional }] }, |
| { type: MatMenuItem, decorators: [{ type: Optional }, { type: Self }] }, |
| { type: Directionality, decorators: [{ type: Optional }] }, |
| { type: FocusMonitor } |
| ]; |
| MatMenuTrigger.propDecorators = { |
| _deprecatedMatMenuTriggerFor: [{ type: Input, args: ['mat-menu-trigger-for',] }], |
| menu: [{ type: Input, args: ['matMenuTriggerFor',] }], |
| menuData: [{ type: Input, args: ['matMenuTriggerData',] }], |
| restoreFocus: [{ type: Input, args: ['matMenuTriggerRestoreFocus',] }], |
| menuOpened: [{ type: Output }], |
| onMenuOpen: [{ type: Output }], |
| menuClosed: [{ type: Output }], |
| onMenuClose: [{ type: Output }] |
| }; |
| |
| /** |
| * @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 |
| */ |
| /** |
| * Used by both the current `MatMenuModule` and the MDC `MatMenuModule` |
| * to declare the menu-related directives. |
| */ |
| class _MatMenuDirectivesModule { |
| } |
| _MatMenuDirectivesModule.decorators = [ |
| { type: NgModule, args: [{ |
| exports: [MatMenuTrigger, MatMenuContent, MatCommonModule], |
| declarations: [ |
| MatMenuTrigger, |
| MatMenuContent, |
| ], |
| providers: [MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER] |
| },] } |
| ]; |
| class MatMenuModule { |
| } |
| MatMenuModule.decorators = [ |
| { type: NgModule, args: [{ |
| imports: [ |
| CommonModule, |
| MatCommonModule, |
| MatRippleModule, |
| OverlayModule, |
| _MatMenuDirectivesModule, |
| ], |
| exports: [CdkScrollableModule, MatCommonModule, MatMenu, MatMenuItem, _MatMenuDirectivesModule], |
| declarations: [MatMenu, MatMenuItem], |
| providers: [MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER] |
| },] } |
| ]; |
| |
| /** |
| * @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 |
| */ |
| |
| /** |
| * @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 |
| */ |
| |
| /** |
| * Generated bundle index. Do not edit. |
| */ |
| |
| export { MAT_MENU_CONTENT, MAT_MENU_DEFAULT_OPTIONS, MAT_MENU_PANEL, MAT_MENU_SCROLL_STRATEGY, MatMenu, MatMenuContent, MatMenuItem, MatMenuModule, MatMenuTrigger, _MatMenuBase, _MatMenuDirectivesModule, fadeInItems, matMenuAnimations, transformMenu, MAT_MENU_DEFAULT_OPTIONS_FACTORY as ɵangular_material_src_material_menu_menu_a, MAT_MENU_SCROLL_STRATEGY_FACTORY as ɵangular_material_src_material_menu_menu_b, MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER as ɵangular_material_src_material_menu_menu_c }; |
| //# sourceMappingURL=menu.js.map |
