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Fixes #4817 We need to communicate between components when an event has been handled (e.g. keyboard navigation or clicking). This CL focuses on listening to `defaultPrevented` in order to communicate that something was handled. We also have to patch ripple on submenu to make sure that the ripple isn't triggered. PiperOrigin-RevId: 561748634
76 lines
2.2 KiB
TypeScript
76 lines
2.2 KiB
TypeScript
/**
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* @license
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* Copyright 2022 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import {customElement} from 'lit/decorators.js';
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import {styles as forcedColors} from './internal/forced-colors-styles.css.js';
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import {Menu} from './internal/menu.js';
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import {styles} from './internal/menu-styles.css.js';
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export {ListItem} from '../list/internal/listitem/list-item.js';
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export {Corner, DefaultFocusState} from './internal/menu.js';
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export {CloseMenuEvent, MenuItem} from './internal/shared.js';
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declare global {
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interface HTMLElementTagNameMap {
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'md-menu': MdMenu;
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}
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}
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/**
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* @summary Menus display a list of choices on a temporary surface.
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*
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* @description
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* Menus appear when users interact with a button, action, or other control.
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*
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* They can be opened from a variety of elements, most commonly icon buttons,
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* buttons, and text fields.
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*
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* md-menu listens for the `close-menu` and `deselect-items` events.
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*
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* - `close-menu` closes the menu when dispatched from a child element.
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* - `deselect-items` deselects all of its immediate menu-item children.
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*
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* @example
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* ```html
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* <div style="position:relative;">
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* <!--
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* The menu ref in this example can be achieved by any method such as the
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* preferred `@query` decorator in Lit or a ref in React.
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* -->
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* <button
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* id="anchor"
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* @click=${() => this.menuRef.value.show()}>
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* Click to open menu
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* </button>
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* <!--
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* `has-overflow` is required when using a submenu which overflows the
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* menu's contents.
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*
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* Additionally, `anchor` ingests an idref which do not pass through shadow
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* roots. You can also set `.anchorElement` to an element reference if
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* necessary.
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* -->
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* <md-menu anchor="anchor" has-overflow ${ref(menuRef)}>
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* <md-menu-item header="This is a header"></md-menu-item>
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* <md-sub-menu-item header="this is a submenu item">
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* <md-menu slot="submenu">
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* <md-menu-item
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* header="This is an item inside a submenu"></md-menu-item>
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* </md-menu>
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* </md-sub-menu-item>
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* </md-menu>
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* </div>
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* ```
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*
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* @final
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* @suppress {visibility}
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*/
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@customElement('md-menu')
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export class MdMenu extends Menu {
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static override styles = [styles, forcedColors];
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}
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