WIP of Stash Explorer commands

# Conflicts:
#	src/commands/stashApply.ts

src/views/explorerNode.ts

@@ -1,7 +1,6 @@
 'use strict';
-import { ExtensionContext, TreeItem } from 'vscode';
+import { Event, ExtensionContext, TreeItem} from 'vscode';
 import { GitService, GitUri } from '../gitService';
-
 export declare type ResourceType = 'status' | 'branches' | 'repository' | 'branch-history' | 'file-history' | 'stash-history' | 'commit' | 'stash-commit' | 'commit-file';
 
 export abstract class ExplorerNode {
@@ -12,4 +11,7 @@ export abstract class ExplorerNode {
 
     abstract getChildren(): ExplorerNode[] | Promise<ExplorerNode[]>;
     abstract getTreeItem(): TreeItem | Promise<TreeItem>;
+
+    onDidChangeTreeData?: Event<ExplorerNode>;
+    refreshNode?(): void;
 }

src/views/stashCommitNode.ts

@@ -1,5 +1,5 @@
 'use strict';
-import { ExtensionContext, TreeItem, TreeItemCollapsibleState } from 'vscode';
+import { Event, EventEmitter, ExtensionContext, TreeItem, TreeItemCollapsibleState } from 'vscode';
 import { CommitFileNode } from './commitFileNode';
 import { ExplorerNode, ResourceType } from './explorerNode';
 import { CommitFormatter, GitService, GitStashCommit, GitUri } from '../gitService';
@@ -8,6 +8,15 @@ export class StashCommitNode extends ExplorerNode {
 
     readonly resourceType: ResourceType = 'stash-commit';
 
+    private _onDidChangeTreeData = new EventEmitter<ExplorerNode>();
+    public get onDidChangeTreeData(): Event<ExplorerNode> {
+        return this._onDidChangeTreeData.event;
+    }
+
+    public refreshNode() {
+        this._onDidChangeTreeData.fire();
+    }
+
     constructor(public readonly commit: GitStashCommit, context: ExtensionContext, git: GitService) {
         super(new GitUri(commit.uri, commit), context, git);
     }

src/views/stashExplorer.ts

@@ -2,7 +2,6 @@
 import { commands, Event, EventEmitter, ExtensionContext, TreeDataProvider, TreeItem, Uri } from 'vscode';
 import { ExplorerNode, StashNode } from './explorerNodes';
 import { GitService, GitUri } from '../gitService';
-import { StashCommitNode } from './stashCommitNode';
 
 export * from './explorerNodes';
 
@@ -10,7 +9,7 @@ export class StashExplorer implements TreeDataProvider<ExplorerNode>  {
 
     private _node: ExplorerNode;
     private _onDidChangeTreeData = new EventEmitter<ExplorerNode>();
-    public get onDidChangeTreeData(): Event<StashCommitNode> {
+    public get onDidChangeTreeData(): Event<ExplorerNode> {
         return this._onDidChangeTreeData.event;
     }
 
@@ -28,6 +27,11 @@ export class StashExplorer implements TreeDataProvider<ExplorerNode>  {
     }
 
     async getTreeItem(node: ExplorerNode): Promise<TreeItem> {
+        if (node.onDidChangeTreeData) {
+            node.onDidChangeTreeData(() => {
+                this._onDidChangeTreeData.fire();
+            });
+        }
         return node.getTreeItem();
     }