Move ViewColumn to @theia/core

The enum ViewColumn is used to specify in which column of the main area
a widget is supposed to be opened.

Contributed on behalf of ST Microelectronics

Signed-off-by: Olaf Lessenich <olessenich@eclipsesource.com>

packages/core/src/common/index.ts

@@ -43,6 +43,7 @@ export * from './contribution-filter';
 export * from './nls';
 export * from './numbers';
 export * from './performance';
+export * from './view-column';
 
 import { environment } from '@theia/application-package/lib/environment';
 export { environment };

packages/core/src/common/view-column.ts

@@ -0,0 +1,33 @@
+// *****************************************************************************
+// Copyright (C) 2022 STMicroelectronics.
+//
+// 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
+// *****************************************************************************
+
+/**
+ * Denotes a column in the editor window.
+ * Columns are used to show editors side by side.
+ */
+export enum ViewColumn {
+    Active = -1,
+    Beside = -2,
+    One = 1,
+    Two = 2,
+    Three = 3,
+    Four = 4,
+    Five = 5,
+    Six = 6,
+    Seven = 7,
+    Eight = 8,
+    Nine = 9
+}

packages/terminal/src/browser/base/terminal-widget.ts

@@ -14,7 +14,7 @@
 // SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 // *****************************************************************************
 
-import { Event } from '@theia/core';
+import { Event, ViewColumn } from '@theia/core';
 import { BaseWidget } from '@theia/core/lib/browser';
 import { CommandLineOptions } from '@theia/process/lib/common/shell-command-builder';
 import { TerminalSearchWidget } from '../search/terminal-search-widget';
@@ -38,65 +38,14 @@ export enum TerminalLocation {
 }
 
 export interface TerminalEditorLocation {
-    readonly viewColumn: number;
+    readonly viewColumn: ViewColumn;
     readonly preserveFocus?: boolean;
 }
 
 export interface TerminalSplitLocation {
     readonly parentTerminal: string;
 }
 
-export enum ViewColumn {
-    /**
-     * A *symbolic* editor column representing the currently active column. This value
-     * can be used when opening editors, but the *resolved* {@link TextEditor.viewColumn viewColumn}-value
-     * of editors will always be `One`, `Two`, `Three`,... or `undefined` but never `Active`.
-     */
-    Active = -1,
-    /**
-     * A *symbolic* editor column representing the column to the side of the active one. This value
-     * can be used when opening editors, but the *resolved* {@link TextEditor.viewColumn viewColumn}-value
-     * of editors will always be `One`, `Two`, `Three`,... or `undefined` but never `Beside`.
-     */
-    Beside = -2,
-    /**
-     * The first editor column.
-     */
-    One = 1,
-    /**
-     * The second editor column.
-     */
-    Two = 2,
-    /**
-     * The third editor column.
-     */
-    Three = 3,
-    /**
-     * The fourth editor column.
-     */
-    Four = 4,
-    /**
-     * The fifth editor column.
-     */
-    Five = 5,
-    /**
-     * The sixth editor column.
-     */
-    Six = 6,
-    /**
-     * The seventh editor column.
-     */
-    Seven = 7,
-    /**
-     * The eighth editor column.
-     */
-    Eight = 8,
-    /**
-     * The ninth editor column.
-     */
-    Nine = 9
-}
-
 /**
  * Terminal UI widget.
  */

packages/terminal/src/browser/terminal-frontend-contribution.ts

@@ -25,7 +25,8 @@ import {
     isOSX,
     SelectionService,
     Emitter,
-    Event
+    Event,
+    ViewColumn
 } from '@theia/core/lib/common';
 import {
     ApplicationShell, KeybindingContribution, KeyCode, Key, WidgetManager,
@@ -36,7 +37,7 @@ import { TabBarToolbarContribution, TabBarToolbarRegistry } from '@theia/core/li
 import { TERMINAL_WIDGET_FACTORY_ID, TerminalWidgetFactoryOptions, TerminalWidgetImpl } from './terminal-widget-impl';
 import { TerminalKeybindingContexts } from './terminal-keybinding-contexts';
 import { TerminalService } from './base/terminal-service';
-import { TerminalWidgetOptions, TerminalWidget, TerminalLocation, ViewColumn } from './base/terminal-widget';
+import { TerminalWidgetOptions, TerminalWidget, TerminalLocation } from './base/terminal-widget';
 import { UriAwareCommandHandler } from '@theia/core/lib/common/uri-command-handler';
 import { ShellTerminalServerProxy } from '../common/shell-terminal-protocol';
 import URI from '@theia/core/lib/common/uri';