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tree/list: add events for DOM focus/blur

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This commit is contained in:
Benjamin Pasero
2017-02-08 12:36:19 +01:00
parent 017f20052a
commit 8929a0e759
4 changed files with 46 additions and 2 deletions
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17
src/vs/base/browser/ui/list/listWidget.ts
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@@ -237,6 +237,12 @@ export class List<T> implements IDisposable {
private _onDOMFocus: Event<FocusEvent>;
get onDOMFocus(): Event<FocusEvent> { return this._onDOMFocus; }
private _onDOMBlur: Event<FocusEvent>;
get onDOMBlur(): Event<FocusEvent> { return this._onDOMBlur; }
private _onDispose: Emitter<void>;
get onDispose(): Event<void> { return this._onDispose.event; }
constructor(
container: HTMLElement,
delegate: IDelegate<T>,
@@ -257,9 +263,13 @@ export class List<T> implements IDisposable {
this.view.domNode.setAttribute('role', 'tree');
this.view.domNode.tabIndex = 0;
this.controller = new Controller(this, this.view);
this.disposables = [this.focus, this.selection, this.view, this.controller];
this._onDOMFocus = domEvent(this.view.domNode, 'focus');
this._onDOMBlur = domEvent(this.view.domNode, 'blur');
this._onDispose = new Emitter<void>();
this.disposables = [this.focus, this.selection, this.view, this.controller, this._onDispose];
this.onFocusChange(this._onFocusChange, this, this.disposables);
if (options.ariaLabel) {
@@ -426,6 +436,10 @@ export class List<T> implements IDisposable {
return `${this.idPrefix}_${index}`;
}
isDOMFocused(): boolean {
return this.view.domNode === document.activeElement;
}
private toListEvent({ indexes }: ITraitChangeEvent) {
return { indexes, elements: indexes.map(i => this.view.element(i)) };
}
@@ -444,6 +458,7 @@ export class List<T> implements IDisposable {
}
dispose(): void {
this._onDispose.fire();
this.disposables = dispose(this.disposables);
}
}