/*
* Copyright (c) 2012 Google Inc.
*
* All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse
* Public License v1.0 which accompanies this distribution, and is available at
*
* http://www.eclipse.org/legal/epl-v10.html
*/
package com.google.eclipse.protobuf.cdt.util;
import org.eclipse.core.resources.IFile;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.texteditor.ITextEditor;
import com.google.inject.Singleton;
/**
* Utility methods related to editors.
*
* @author alruiz@google.com (Alex Ruiz)
*/
@Singleton public class Editors {
/**
* Returns the offset of the selected text in the given editor.
* @param editor the given editor.
* @return the offset of the selected text in the given editor, or -1 if there is no valid text information.
*/
public int selectionOffsetOf(IEditorPart editor) {
ISelectionProvider selectionProvider = ((ITextEditor) editor).getSelectionProvider();
ISelection selection = selectionProvider.getSelection();
if (selection instanceof ITextSelection) {
ITextSelection textSelection = (ITextSelection) selection;
return textSelection.getOffset();
}
return -1;
}
/**
* Returns the file displayed in the given editor.
* @param editor the given editor.
* @return the file displayed in the given editor.
*/
public IFile fileDisplayedIn(IEditorPart editor) {
return (IFile) editor.getEditorInput().getAdapter(IFile.class);
}
}