Fix missing commit and amend widgets on opening new workspace

Signed-off-by: Nigel Westbury <nigelipse@miegel.org>

packages/scm/src/browser/scm-amend-widget.tsx

@@ -14,8 +14,7 @@
  * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
  ********************************************************************************/
 
-import { injectable, inject } from 'inversify';
-import { Message } from '@phosphor/messaging';
+import { injectable, inject, postConstruct } from 'inversify';
 import { SelectionService } from '@theia/core/lib/common';
 import * as React from 'react';
 import {
@@ -51,11 +50,11 @@ export class ScmAmendWidget extends ReactWidget {
         this.id = ScmAmendWidget.ID;
     }
 
-    protected onUpdateRequest(msg: Message): void {
-        if (!this.isAttached || !this.isVisible) {
-            return;
-        }
-        super.onUpdateRequest(msg);
+    @postConstruct()
+    protected init(): void {
+        this.toDispose.push(this.scmService.onDidChangeSelectedRepository(() => {
+            this.update();
+        }));
     }
 
     protected render(): React.ReactNode {

packages/scm/src/browser/scm-commit-widget.tsx

@@ -14,14 +14,13 @@
  * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
  ********************************************************************************/
 
-import { injectable, inject } from 'inversify';
+import { injectable, inject, postConstruct } from 'inversify';
 import { Message } from '@phosphor/messaging';
-import { SelectionService } from '@theia/core/lib/common';
 import * as React from 'react';
 import TextareaAutosize from 'react-autosize-textarea';
 import { ScmInput } from './scm-input';
 import {
-    ContextMenuRenderer, ReactWidget, LabelProvider, KeybindingRegistry, StatefulWidget} from '@theia/core/lib/browser';
+    ContextMenuRenderer, ReactWidget, KeybindingRegistry, StatefulWidget} from '@theia/core/lib/browser';
 import { ScmService } from './scm-service';
 
 @injectable()
@@ -30,8 +29,6 @@ export class ScmCommitWidget extends ReactWidget implements StatefulWidget {
     static ID = 'scm-commit-widget';
 
     @inject(ScmService) protected readonly scmService: ScmService;
-    @inject(SelectionService) protected readonly selectionService: SelectionService;
-    @inject(LabelProvider) protected readonly labelProvider: LabelProvider;
     @inject(KeybindingRegistry) protected readonly keybindings: KeybindingRegistry;
 
     protected shouldScrollToRow = true;
@@ -51,6 +48,13 @@ export class ScmCommitWidget extends ReactWidget implements StatefulWidget {
         this.id = ScmCommitWidget.ID;
     }
 
+    @postConstruct()
+    protected init(): void {
+        this.toDispose.push(this.scmService.onDidChangeSelectedRepository(() => {
+            this.update();
+        }));
+    }
+
     protected onActivateRequest(msg: Message): void {
         super.onActivateRequest(msg);
         this.focus();
@@ -60,13 +64,6 @@ export class ScmCommitWidget extends ReactWidget implements StatefulWidget {
         (this.inputRef.current || this.node).focus();
     }
 
-    protected onUpdateRequest(msg: Message): void {
-        if (!this.isAttached || !this.isVisible) {
-            return;
-        }
-        super.onUpdateRequest(msg);
-    }
-
     protected render(): React.ReactNode {
         const repository = this.scmService.selectedRepository;
         if (repository) {

packages/scm/src/browser/scm-widget.tsx

@@ -130,9 +130,6 @@ export class ScmWidget extends BaseWidget implements StatefulWidget {
     }
 
     protected onUpdateRequest(msg: Message): void {
-        if (!this.isAttached || !this.isVisible) {
-            return;
-        }
         MessageLoop.sendMessage(this.commitWidget, msg);
         MessageLoop.sendMessage(this.resourceWidget, msg);
         MessageLoop.sendMessage(this.amendWidget, msg);