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editor-variable-contribution.ts
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editor-variable-contribution.ts
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// *****************************************************************************
// Copyright (C) 2018 Red Hat, Inc. 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 { injectable, inject } from '@theia/core/shared/inversify';
import { VariableRegistry, VariableContribution } from '@theia/variable-resolver/lib/browser';
import { TextEditor } from './editor';
import { EditorManager } from './editor-manager';
@injectable()
export class EditorVariableContribution implements VariableContribution {
@inject(EditorManager)
protected readonly editorManager: EditorManager;
registerVariables(variables: VariableRegistry): void {
variables.registerVariable({
name: 'lineNumber',
description: 'The current line number in the currently opened file',
resolve: () => {
const editor = this.getCurrentEditor();
return editor ? `${editor.cursor.line + 1}` : undefined;
}
});
variables.registerVariable({
name: 'selectedText',
description: 'The current selected text in the active file',
resolve: () => {
const editor = this.getCurrentEditor();
return editor ? editor.document.getText(editor.selection) : undefined;
}
});
}
protected getCurrentEditor(): TextEditor | undefined {
const currentEditor = this.editorManager.currentEditor;
if (!currentEditor) {
return undefined;
}
return currentEditor.editor;
}
}