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code-server/lib/vscode/src/vs/base/browser/ui/actionbar/actionViewItems.ts
2021-03-11 10:27:10 -07:00

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TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import 'vs/css!./actionbar';
import * as platform from 'vs/base/common/platform';
import * as nls from 'vs/nls';
import { Disposable } from 'vs/base/common/lifecycle';
import { SelectBox, ISelectOptionItem, ISelectBoxOptions } from 'vs/base/browser/ui/selectBox/selectBox';
import { IAction, IActionRunner, Action, IActionChangeEvent, ActionRunner, Separator } from 'vs/base/common/actions';
import * as types from 'vs/base/common/types';
import { EventType as TouchEventType, Gesture } from 'vs/base/browser/touch';
import { IContextViewProvider } from 'vs/base/browser/ui/contextview/contextview';
import { DataTransfers } from 'vs/base/browser/dnd';
import { isFirefox } from 'vs/base/browser/browser';
import { $, addDisposableListener, append, EventHelper, EventLike, EventType } from 'vs/base/browser/dom';
import { IActionViewItem } from 'vs/base/browser/ui/actionbar/actionbar';
export interface IBaseActionViewItemOptions {
draggable?: boolean;
isMenu?: boolean;
useEventAsContext?: boolean;
}
export class BaseActionViewItem extends Disposable implements IActionViewItem {
element: HTMLElement | undefined;
_context: any;
_action: IAction;
private _actionRunner: IActionRunner | undefined;
constructor(context: any, action: IAction, protected options: IBaseActionViewItemOptions = {}) {
super();
this._context = context || this;
this._action = action;
if (action instanceof Action) {
this._register(action.onDidChange(event => {
if (!this.element) {
// we have not been rendered yet, so there
// is no point in updating the UI
return;
}
this.handleActionChangeEvent(event);
}));
}
}
private handleActionChangeEvent(event: IActionChangeEvent): void {
if (event.enabled !== undefined) {
this.updateEnabled();
}
if (event.checked !== undefined) {
this.updateChecked();
}
if (event.class !== undefined) {
this.updateClass();
}
if (event.label !== undefined) {
this.updateLabel();
this.updateTooltip();
}
if (event.tooltip !== undefined) {
this.updateTooltip();
}
}
get actionRunner(): IActionRunner {
if (!this._actionRunner) {
this._actionRunner = this._register(new ActionRunner());
}
return this._actionRunner;
}
set actionRunner(actionRunner: IActionRunner) {
this._actionRunner = actionRunner;
}
getAction(): IAction {
return this._action;
}
isEnabled(): boolean {
return this._action.enabled;
}
setActionContext(newContext: unknown): void {
this._context = newContext;
}
render(container: HTMLElement): void {
const element = this.element = container;
this._register(Gesture.addTarget(container));
const enableDragging = this.options && this.options.draggable;
if (enableDragging) {
container.draggable = true;
if (isFirefox) {
// Firefox: requires to set a text data transfer to get going
this._register(addDisposableListener(container, EventType.DRAG_START, e => e.dataTransfer?.setData(DataTransfers.TEXT, this._action.label)));
}
}
this._register(addDisposableListener(element, TouchEventType.Tap, e => this.onClick(e)));
this._register(addDisposableListener(element, EventType.MOUSE_DOWN, e => {
if (!enableDragging) {
EventHelper.stop(e, true); // do not run when dragging is on because that would disable it
}
if (this._action.enabled && e.button === 0) {
element.classList.add('active');
}
}));
if (platform.isMacintosh) {
// macOS: allow to trigger the button when holding Ctrl+key and pressing the
// main mouse button. This is for scenarios where e.g. some interaction forces
// the Ctrl+key to be pressed and hold but the user still wants to interact
// with the actions (for example quick access in quick navigation mode).
this._register(addDisposableListener(element, EventType.CONTEXT_MENU, e => {
if (e.button === 0 && e.ctrlKey === true) {
this.onClick(e);
}
}));
}
this._register(addDisposableListener(element, EventType.CLICK, e => {
EventHelper.stop(e, true);
// menus do not use the click event
if (!(this.options && this.options.isMenu)) {
platform.setImmediate(() => this.onClick(e));
}
}));
this._register(addDisposableListener(element, EventType.DBLCLICK, e => {
EventHelper.stop(e, true);
}));
[EventType.MOUSE_UP, EventType.MOUSE_OUT].forEach(event => {
this._register(addDisposableListener(element, event, e => {
EventHelper.stop(e);
element.classList.remove('active');
}));
});
}
onClick(event: EventLike): void {
EventHelper.stop(event, true);
const context = types.isUndefinedOrNull(this._context) ? this.options?.useEventAsContext ? event : undefined : this._context;
this.actionRunner.run(this._action, context);
}
// Only set the tabIndex on the element once it is about to get focused
// That way this element wont be a tab stop when it is not needed #106441
focus(): void {
if (this.element) {
this.element.tabIndex = 0;
this.element.focus();
this.element.classList.add('focused');
}
}
blur(): void {
if (this.element) {
this.element.blur();
this.element.tabIndex = -1;
this.element.classList.remove('focused');
}
}
setFocusable(focusable: boolean): void {
if (this.element) {
this.element.tabIndex = focusable ? 0 : -1;
}
}
get trapsArrowNavigation(): boolean {
return false;
}
protected updateEnabled(): void {
// implement in subclass
}
protected updateLabel(): void {
// implement in subclass
}
protected updateTooltip(): void {
// implement in subclass
}
protected updateClass(): void {
// implement in subclass
}
protected updateChecked(): void {
// implement in subclass
}
dispose(): void {
if (this.element) {
this.element.remove();
this.element = undefined;
}
super.dispose();
}
}
export interface IActionViewItemOptions extends IBaseActionViewItemOptions {
icon?: boolean;
label?: boolean;
keybinding?: string | null;
}
export class ActionViewItem extends BaseActionViewItem {
protected label: HTMLElement | undefined;
protected options: IActionViewItemOptions;
private cssClass?: string;
constructor(context: unknown, action: IAction, options: IActionViewItemOptions = {}) {
super(context, action, options);
this.options = options;
this.options.icon = options.icon !== undefined ? options.icon : false;
this.options.label = options.label !== undefined ? options.label : true;
this.cssClass = '';
}
render(container: HTMLElement): void {
super.render(container);
if (this.element) {
this.label = append(this.element, $('a.action-label'));
}
if (this.label) {
if (this._action.id === Separator.ID) {
this.label.setAttribute('role', 'presentation'); // A separator is a presentation item
} else {
if (this.options.isMenu) {
this.label.setAttribute('role', 'menuitem');
} else {
this.label.setAttribute('role', 'button');
}
}
}
if (this.options.label && this.options.keybinding && this.element) {
append(this.element, $('span.keybinding')).textContent = this.options.keybinding;
}
this.updateClass();
this.updateLabel();
this.updateTooltip();
this.updateEnabled();
this.updateChecked();
}
// Only set the tabIndex on the element once it is about to get focused
// That way this element wont be a tab stop when it is not needed #106441
focus(): void {
if (this.label) {
this.label.tabIndex = 0;
this.label.focus();
}
}
blur(): void {
if (this.label) {
this.label.tabIndex = -1;
}
}
setFocusable(focusable: boolean): void {
if (this.label) {
this.label.tabIndex = focusable ? 0 : -1;
}
}
updateLabel(): void {
if (this.options.label && this.label) {
this.label.textContent = this.getAction().label;
}
}
updateTooltip(): void {
let title: string | null = null;
if (this.getAction().tooltip) {
title = this.getAction().tooltip;
} else if (!this.options.label && this.getAction().label && this.options.icon) {
title = this.getAction().label;
if (this.options.keybinding) {
title = nls.localize({ key: 'titleLabel', comment: ['action title', 'action keybinding'] }, "{0} ({1})", title, this.options.keybinding);
}
}
if (title && this.label) {
this.label.title = title;
}
}
updateClass(): void {
if (this.cssClass && this.label) {
this.label.classList.remove(...this.cssClass.split(' '));
}
if (this.options.icon) {
this.cssClass = this.getAction().class;
if (this.label) {
this.label.classList.add('codicon');
if (this.cssClass) {
this.label.classList.add(...this.cssClass.split(' '));
}
}
this.updateEnabled();
} else {
if (this.label) {
this.label.classList.remove('codicon');
}
}
}
updateEnabled(): void {
if (this.getAction().enabled) {
if (this.label) {
this.label.removeAttribute('aria-disabled');
this.label.classList.remove('disabled');
}
if (this.element) {
this.element.classList.remove('disabled');
}
} else {
if (this.label) {
this.label.setAttribute('aria-disabled', 'true');
this.label.classList.add('disabled');
}
if (this.element) {
this.element.classList.add('disabled');
}
}
}
updateChecked(): void {
if (this.label) {
if (this.getAction().checked) {
this.label.classList.add('checked');
} else {
this.label.classList.remove('checked');
}
}
}
}
export class SelectActionViewItem extends BaseActionViewItem {
protected selectBox: SelectBox;
constructor(ctx: unknown, action: IAction, options: ISelectOptionItem[], selected: number, contextViewProvider: IContextViewProvider, selectBoxOptions?: ISelectBoxOptions) {
super(ctx, action);
this.selectBox = new SelectBox(options, selected, contextViewProvider, undefined, selectBoxOptions);
this._register(this.selectBox);
this.registerListeners();
}
setOptions(options: ISelectOptionItem[], selected?: number): void {
this.selectBox.setOptions(options, selected);
}
select(index: number): void {
this.selectBox.select(index);
}
private registerListeners(): void {
this._register(this.selectBox.onDidSelect(e => {
this.actionRunner.run(this._action, this.getActionContext(e.selected, e.index));
}));
}
protected getActionContext(option: string, index: number) {
return option;
}
focus(): void {
if (this.selectBox) {
this.selectBox.focus();
}
}
blur(): void {
if (this.selectBox) {
this.selectBox.blur();
}
}
render(container: HTMLElement): void {
this.selectBox.render(container);
}
}