monaco-editor-core
Version:
A browser based code editor
140 lines (139 loc) • 5.65 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { $, addDisposableListener, append, EventHelper, EventType, isMouseEvent } from '../../dom.js';
import { StandardKeyboardEvent } from '../../keyboardEvent.js';
import { EventType as GestureEventType, Gesture } from '../../touch.js';
import { ActionRunner } from '../../../common/actions.js';
import { Emitter } from '../../../common/event.js';
import './dropdown.css';
class BaseDropdown extends ActionRunner {
constructor(container, options) {
super();
this._onDidChangeVisibility = this._register(new Emitter());
this.onDidChangeVisibility = this._onDidChangeVisibility.event;
this._element = append(container, $('.monaco-dropdown'));
this._label = append(this._element, $('.dropdown-label'));
let labelRenderer = options.labelRenderer;
if (!labelRenderer) {
labelRenderer = (container) => {
container.textContent = options.label || '';
return null;
};
}
for (const event of [EventType.CLICK, EventType.MOUSE_DOWN, GestureEventType.Tap]) {
this._register(addDisposableListener(this.element, event, e => EventHelper.stop(e, true))); // prevent default click behaviour to trigger
}
for (const event of [EventType.MOUSE_DOWN, GestureEventType.Tap]) {
this._register(addDisposableListener(this._label, event, e => {
if (isMouseEvent(e) && (e.detail > 1 || e.button !== 0)) {
// prevent right click trigger to allow separate context menu (https://github.com/microsoft/vscode/issues/151064)
// prevent multiple clicks to open multiple context menus (https://github.com/microsoft/vscode/issues/41363)
return;
}
if (this.visible) {
this.hide();
}
else {
this.show();
}
}));
}
this._register(addDisposableListener(this._label, EventType.KEY_UP, e => {
const event = new StandardKeyboardEvent(e);
if (event.equals(3 /* KeyCode.Enter */) || event.equals(10 /* KeyCode.Space */)) {
EventHelper.stop(e, true); // https://github.com/microsoft/vscode/issues/57997
if (this.visible) {
this.hide();
}
else {
this.show();
}
}
}));
const cleanupFn = labelRenderer(this._label);
if (cleanupFn) {
this._register(cleanupFn);
}
this._register(Gesture.addTarget(this._label));
}
get element() {
return this._element;
}
show() {
if (!this.visible) {
this.visible = true;
this._onDidChangeVisibility.fire(true);
}
}
hide() {
if (this.visible) {
this.visible = false;
this._onDidChangeVisibility.fire(false);
}
}
dispose() {
super.dispose();
this.hide();
if (this.boxContainer) {
this.boxContainer.remove();
this.boxContainer = undefined;
}
if (this.contents) {
this.contents.remove();
this.contents = undefined;
}
if (this._label) {
this._label.remove();
this._label = undefined;
}
}
}
export class DropdownMenu extends BaseDropdown {
constructor(container, _options) {
super(container, _options);
this._options = _options;
this._actions = [];
this.actions = _options.actions || [];
}
set menuOptions(options) {
this._menuOptions = options;
}
get menuOptions() {
return this._menuOptions;
}
get actions() {
if (this._options.actionProvider) {
return this._options.actionProvider.getActions();
}
return this._actions;
}
set actions(actions) {
this._actions = actions;
}
show() {
super.show();
this.element.classList.add('active');
this._options.contextMenuProvider.showContextMenu({
getAnchor: () => this.element,
getActions: () => this.actions,
getActionsContext: () => this.menuOptions ? this.menuOptions.context : null,
getActionViewItem: (action, options) => this.menuOptions && this.menuOptions.actionViewItemProvider ? this.menuOptions.actionViewItemProvider(action, options) : undefined,
getKeyBinding: action => this.menuOptions && this.menuOptions.getKeyBinding ? this.menuOptions.getKeyBinding(action) : undefined,
getMenuClassName: () => this._options.menuClassName || '',
onHide: () => this.onHide(),
actionRunner: this.menuOptions ? this.menuOptions.actionRunner : undefined,
anchorAlignment: this.menuOptions ? this.menuOptions.anchorAlignment : 0 /* AnchorAlignment.LEFT */,
domForShadowRoot: this._options.menuAsChild ? this.element : undefined,
skipTelemetry: this._options.skipTelemetry
});
}
hide() {
super.hide();
}
onHide() {
this.hide();
this.element.classList.remove('active');
}
}