Adjust behavior of all close tab commands

examples/api-samples/src/browser/api-samples-frontend-module.ts

@@ -15,14 +15,10 @@
  ********************************************************************************/
 
 import { ContainerModule } from 'inversify';
-import { CommandContribution } from '@theia/core';
-import { LabelProviderContribution } from '@theia/core/lib/browser/label-provider';
-import { ApiSamplesContribution } from './api-samples-contribution';
-import { SampleDynamicLabelProviderContribution } from './sample-dynamic-label-provider-contribution';
+import { bindDynamicLabelProvider } from './label/sample-dymanic-label-provider-command-contribution';
+import { bindSampleUnclosableView } from './view/sample-unclosable-view-contribution';
 
 export default new ContainerModule(bind => {
-    bind(CommandContribution).to(ApiSamplesContribution).inSingletonScope();
-
-    bind(SampleDynamicLabelProviderContribution).toSelf().inSingletonScope();
-    bind(LabelProviderContribution).toService(SampleDynamicLabelProviderContribution);
+    bindDynamicLabelProvider(bind);
+    bindSampleUnclosableView(bind);
 });

examples/api-samples/src/browser/api-samples-contribution.ts → examples/api-samples/src/browser/label/sample-dymanic-label-provider-command-contribution.ts

@@ -14,9 +14,9 @@
  * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
  ********************************************************************************/
 
-import { injectable, inject } from 'inversify';
+import { injectable, inject, interfaces } from 'inversify';
 import { Command, CommandContribution, CommandRegistry, CommandHandler } from '@theia/core';
-import { FrontendApplicationContribution } from '@theia/core/lib/browser';
+import { FrontendApplicationContribution, LabelProviderContribution } from '@theia/core/lib/browser';
 import { SampleDynamicLabelProviderContribution } from './sample-dynamic-label-provider-contribution';
 
 export namespace ExampleLabelProviderCommands {
@@ -29,7 +29,7 @@ export namespace ExampleLabelProviderCommands {
 }
 
 @injectable()
-export class ApiSamplesContribution implements FrontendApplicationContribution, CommandContribution {
+export class SampleDynamicLabelProviderCommandContribution implements FrontendApplicationContribution, CommandContribution {
 
     @inject(SampleDynamicLabelProviderContribution)
     protected readonly labelProviderContribution: SampleDynamicLabelProviderContribution;
@@ -53,3 +53,10 @@ export class ExampleLabelProviderCommandHandler implements CommandHandler {
     }
 
 }
+
+export const bindDynamicLabelProvider = (bind: interfaces.Bind) => {
+    bind(SampleDynamicLabelProviderContribution).toSelf().inSingletonScope();
+    bind(LabelProviderContribution).toService(SampleDynamicLabelProviderContribution);
+    bind(CommandContribution).to(SampleDynamicLabelProviderCommandContribution).inSingletonScope();
+};
+

examples/api-samples/src/browser/sample-dynamic-label-provider-contribution.ts → examples/api-samples/src/browser/label/sample-dynamic-label-provider-contribution.ts

@@ -14,9 +14,9 @@
  * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
  ********************************************************************************/
 
+import { injectable } from 'inversify';
 import { DefaultUriLabelProviderContribution, DidChangeLabelEvent } from '@theia/core/lib/browser/label-provider';
 import URI from '@theia/core/lib/common/uri';
-import { injectable } from 'inversify';
 import { Emitter, Event } from '@theia/core';
 
 @injectable()

examples/api-samples/src/browser/view/sample-unclosable-view-contribution.ts

@@ -0,0 +1,45 @@
+/********************************************************************************
+ * Copyright (C) 2020 TORO Limited and others.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the Eclipse
+ * Public License v. 2.0 are satisfied: GNU General Public License, version 2
+ * with the GNU Classpath Exception which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ ********************************************************************************/
+
+import { AbstractViewContribution, bindViewContribution, WidgetFactory } from '@theia/core/lib/browser';
+import { SampleViewUnclosableView } from './sample-unclosable-view';
+import { injectable, interfaces } from 'inversify';
+
+@injectable()
+export class SampleUnclosableViewContribution extends AbstractViewContribution<SampleViewUnclosableView> {
+
+    static readonly SAMPLE_UNCLOSABLE_VIEW_TOGGLE_COMMAND_ID = 'sampleUnclosableView:toggle';
+
+    constructor() {
+        super({
+            widgetId: SampleViewUnclosableView.ID,
+            widgetName: 'Sample Unclosable View',
+            toggleCommandId: SampleUnclosableViewContribution.SAMPLE_UNCLOSABLE_VIEW_TOGGLE_COMMAND_ID,
+            defaultWidgetOptions: {
+                area: 'main'
+            }
+        });
+    }
+}
+
+export const bindSampleUnclosableView = (bind: interfaces.Bind) => {
+    bindViewContribution(bind, SampleUnclosableViewContribution);
+    bind(SampleViewUnclosableView).toSelf();
+    bind(WidgetFactory).toDynamicValue(ctx => ({
+        id: SampleViewUnclosableView.ID,
+        createWidget: () => ctx.container.get<SampleViewUnclosableView>(SampleViewUnclosableView)
+    }));
+};

examples/api-samples/src/browser/view/sample-unclosable-view.tsx

@@ -0,0 +1,46 @@
+/********************************************************************************
+ * Copyright (C) 2020 TORO Limited and others.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the Eclipse
+ * Public License v. 2.0 are satisfied: GNU General Public License, version 2
+ * with the GNU Classpath Exception which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ ********************************************************************************/
+
+import { ReactWidget } from '@theia/core/lib/browser';
+import { injectable, postConstruct } from 'inversify';
+import * as React from 'react';
+
+/**
+ * This sample view is used to demo the behavior of "Widget.title.closable".
+ */
+@injectable()
+export class SampleViewUnclosableView extends ReactWidget {
+  static readonly ID = 'sampleUnclosableView';
+
+  @postConstruct()
+  init(): void {
+    this.id = SampleViewUnclosableView.ID;
+    this.title.caption = 'Sample Unclosable View';
+    this.title.label = 'Sample Unclosable View';
+    this.title.iconClass = 'fa fa-window-maximize';
+    this.title.closable = false;
+    this.update();
+  }
+
+  protected render(): React.ReactNode {
+    return (
+      <div>
+        Closable
+        <input type="checkbox" defaultChecked={this.title.closable} onChange={e => this.title.closable = e.target.checked} />
+      </div>
+    );
+  }
+}

packages/core/src/browser/common-frontend-contribution.ts

@@ -520,7 +520,14 @@ export class CommonFrontendContribution implements FrontendApplicationContributi
             execute: () => this.shell.activatePreviousTab()
         });
         commandRegistry.registerCommand(CommonCommands.CLOSE_TAB, {
-            isEnabled: (event?: Event) => this.findTabBar(event) !== undefined,
+            isEnabled: (event?: Event) => {
+                const tabBar = this.findTabBar(event);
+                if (!tabBar) {
+                    return false;
+                }
+                const currentTitle = this.findTitle(tabBar, event);
+                return currentTitle !== undefined && currentTitle.closable;
+            },
             execute: (event?: Event) => {
                 const tabBar = this.findTabBar(event)!;
                 const currentTitle = this.findTitle(tabBar, event);
@@ -530,19 +537,22 @@ export class CommonFrontendContribution implements FrontendApplicationContributi
         commandRegistry.registerCommand(CommonCommands.CLOSE_OTHER_TABS, {
             isEnabled: (event?: Event) => {
                 const tabBar = this.findTabBar(event);
-                return tabBar !== undefined && tabBar.titles.length > 1;
+                if (!tabBar) {
+                    return false;
+                }
+                const currentTitle = this.findTitle(tabBar, event);
+                return tabBar.titles.some(title => title !== currentTitle && title.closable);
             },
             execute: (event?: Event) => {
                 const tabBar = this.findTabBar(event)!;
                 const currentTitle = this.findTitle(tabBar, event);
-                const area = this.shell.getAreaFor(tabBar)!;
-                this.shell.closeTabs(area, title => title !== currentTitle);
+                this.shell.closeTabs(tabBar, title => title !== currentTitle && title.closable);
             }
         });
         commandRegistry.registerCommand(CommonCommands.CLOSE_RIGHT_TABS, {
             isEnabled: (event?: Event) => {
                 const tabBar = this.findTabBar(event);
-                return tabBar !== undefined && tabBar.currentIndex < tabBar.titles.length - 1;
+                return tabBar !== undefined && tabBar.titles.some((title, index) => index > tabBar.currentIndex && title.closable);
             },
             isVisible: (event?: Event) => {
                 const area = this.findTabArea(event);
@@ -551,32 +561,37 @@ export class CommonFrontendContribution implements FrontendApplicationContributi
             execute: (event?: Event) => {
                 const tabBar = this.findTabBar(event)!;
                 const currentIndex = tabBar.currentIndex;
-                this.shell.closeTabs(tabBar, (_, index) => index > currentIndex);
+                this.shell.closeTabs(tabBar, (title, index) => index > currentIndex && title.closable);
             }
         });
         commandRegistry.registerCommand(CommonCommands.CLOSE_ALL_TABS, {
-            isEnabled: (event?: Event) => this.findTabBar(event) !== undefined,
-            execute: (event?: Event) => this.shell.closeTabs(this.findTabArea(event)!)
+            isEnabled: (event?: Event) => {
+                const tabBar = this.findTabBar(event);
+                return tabBar !== undefined && tabBar.titles.some(title => title.closable);
+            },
+            execute: (event?: Event) => this.shell.closeTabs(this.findTabBar(event)!, title => title.closable)
         });
         commandRegistry.registerCommand(CommonCommands.CLOSE_MAIN_TAB, {
-            isEnabled: () => this.shell.getCurrentWidget('main') !== undefined,
+            isEnabled: () => {
+                const currentWidget = this.shell.getCurrentWidget('main');
+                return currentWidget !== undefined && currentWidget.title.closable;
+            },
             execute: () => this.shell.getCurrentWidget('main')!.close()
         });
         commandRegistry.registerCommand(CommonCommands.CLOSE_OTHER_MAIN_TABS, {
             isEnabled: () => {
-                const tabBars = this.shell.mainAreaTabBars;
-                return tabBars.length > 1 || tabBars.length === 1 && tabBars[0].titles.length > 1;
+                const currentWidget = this.shell.getCurrentWidget('main');
+                return currentWidget !== undefined &&
+                       this.shell.mainAreaTabBars.some(tb => tb.titles.some(title => title.owner !== currentWidget && title.closable));
             },
             execute: () => {
                 const currentWidget = this.shell.getCurrentWidget('main');
-                if (currentWidget !== undefined) {
-                    this.shell.closeTabs('main', title => title.owner !== currentWidget);
-                }
+                this.shell.closeTabs('main', title => title.owner !== currentWidget && title.closable);
             }
         });
         commandRegistry.registerCommand(CommonCommands.CLOSE_ALL_MAIN_TABS, {
-            isEnabled: () => this.shell.mainAreaTabBars.find(tb => tb.titles.length > 0) !== undefined,
-            execute: () => this.shell.closeTabs('main')
+            isEnabled: () => this.shell.mainAreaTabBars.some(tb => tb.titles.some(title => title.closable)),
+            execute: () => this.shell.closeTabs('main', title => title.closable)
         });
         commandRegistry.registerCommand(CommonCommands.COLLAPSE_PANEL, {
             isEnabled: (event?: Event) => ApplicationShell.isSideArea(this.findTabArea(event)),