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#30535 expand and collapse events

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This commit is contained in:
Sandeep Somavarapu
2018-05-15 16:11:37 +02:00
parent 005666c43e
commit 43ac4e244f
5 changed files with 47 additions and 2 deletions
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27
src/vs/workbench/api/node/extHostTreeViews.ts
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@@ -8,7 +8,7 @@ import { localize } from 'vs/nls';
import * as vscode from 'vscode';
import { basename } from 'vs/base/common/paths';
import URI from 'vs/base/common/uri';
import { debounceEvent } from 'vs/base/common/event';
import { debounceEvent, Emitter, Event } from 'vs/base/common/event';
import { TPromise } from 'vs/base/common/winjs.base';
import { Disposable } from 'vs/base/common/lifecycle';
import { ExtHostTreeViewsShape, MainThreadTreeViewsShape } from './extHost.protocol';
@@ -67,6 +67,14 @@ export class ExtHostTreeViews implements ExtHostTreeViewsShape {
return treeView.getChildren(treeItemHandle);
}
$setExpanded(treeViewId: string, treeItemHandle: string, expanded: boolean): void {
const treeView = this.treeViews.get(treeViewId);
if (treeView) {
treeView.setExpanded(treeItemHandle, expanded);
}
TPromise.wrapError<ITreeItem[]>(new Error(localize('treeView.notRegistered', 'No tree view with id \'{0}\' registered.', treeViewId)));
}
private createExtHostTreeViewer<T>(id: string, dataProvider: vscode.TreeDataProvider<T>): ExtHostTreeView<T> {
const treeView = new ExtHostTreeView<T>(id, dataProvider, this._proxy, this.commands.converter);
this.treeViews.set(id, treeView);
@@ -94,6 +102,12 @@ class ExtHostTreeView<T> extends Disposable {
private elements: Map<TreeItemHandle, T> = new Map<TreeItemHandle, T>();
private nodes: Map<T, TreeNode> = new Map<T, TreeNode>();
private _onDidExpandElement: Emitter<T> = this._register(new Emitter<T>());
readonly onDidExpandElement: Event<T> = this._onDidExpandElement.event;
private _onDidCollapseElement: Emitter<T> = this._register(new Emitter<T>());
readonly onDidCollapseElement: Event<T> = this._onDidCollapseElement.event;
constructor(private viewId: string, private dataProvider: vscode.TreeDataProvider<T>, private proxy: MainThreadTreeViewsShape, private commands: CommandsConverter) {
super();
this.proxy.$registerTreeViewDataProvider(viewId);
@@ -127,6 +141,17 @@ class ExtHostTreeView<T> extends Disposable {
.then(treeNode => this.proxy.$reveal(this.viewId, treeNode.item, parentChain.map(p => p.item), options)));
}
setExpanded(treeItemHandle: TreeItemHandle, expanded: boolean): void {
const element = this.getExtensionElement(treeItemHandle);
if (element) {
if (expanded) {
this._onDidExpandElement.fire(element);
} else {
this._onDidCollapseElement.fire(element);
}
}
}
private resolveUnknownParentChain(element: T): TPromise<TreeNode[]> {
return this.resolveParent(element)
.then((parent) => {