/*
* Copyright (c) 2012, the Dart project authors.
*
* Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.eclipse.org/legal/epl-v10.html
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.dart.tools.search.internal.ui;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.osgi.util.TextProcessor;
import org.eclipse.swt.SWTError;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import java.util.Collections;
import java.util.Iterator;
public class CopyToClipboardAction extends Action {
private StructuredViewer fViewer;
public CopyToClipboardAction() {
setText(SearchMessages.CopyToClipboardAction_label);
setToolTipText(SearchMessages.CopyToClipboardAction_tooltip);
ISharedImages workbenchImages = PlatformUI.getWorkbench().getSharedImages();
setDisabledImageDescriptor(workbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_COPY_DISABLED));
setImageDescriptor(workbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_COPY));
setHoverImageDescriptor(workbenchImages.getImageDescriptor(ISharedImages.IMG_TOOL_COPY));
}
public CopyToClipboardAction(StructuredViewer viewer) {
this();
Assert.isNotNull(viewer);
fViewer = viewer;
}
/*
* Implements method from IAction
*/
@Override
public void run() {
Shell shell = SearchPlugin.getActiveWorkbenchShell();
if (shell == null || fViewer == null) {
return;
}
ILabelProvider labelProvider = (ILabelProvider) fViewer.getLabelProvider();
String lineDelim = System.getProperty("line.separator"); //$NON-NLS-1$
StringBuffer buf = new StringBuffer();
@SuppressWarnings("rawtypes")
Iterator iter = getSelection();
while (iter.hasNext()) {
if (buf.length() > 0) {
buf.append(lineDelim);
}
buf.append(labelProvider.getText(iter.next()));
}
if (buf.length() > 0) {
copyToClipboard(buf.toString(), shell);
}
}
@Override
public void runWithEvent(Event event) {
// bugzilla 126062: allow combos and text fields of the view to fill
// the clipboard
Shell shell = SearchPlugin.getActiveWorkbenchShell();
if (shell != null) {
String sel = null;
if (event.widget instanceof Combo) {
Combo combo = (Combo) event.widget;
sel = combo.getText();
Point selection = combo.getSelection();
sel = sel.substring(selection.x, selection.y);
} else if (event.widget instanceof Text) {
Text text = (Text) event.widget;
sel = text.getSelectionText();
}
if (sel != null) {
if (sel.length() > 0) {
copyToClipboard(sel, shell);
}
return;
}
}
run();
}
/**
* @param viewer The viewer to set.
*/
public void setViewer(StructuredViewer viewer) {
fViewer = viewer;
}
private void copyToClipboard(Clipboard clipboard, String str, Shell shell) {
try {
clipboard.setContents(new String[] {str}, new Transfer[] {TextTransfer.getInstance()});
} catch (SWTError ex) {
if (ex.code != DND.ERROR_CANNOT_SET_CLIPBOARD) {
throw ex;
}
String title = SearchMessages.CopyToClipboardAction_error_title;
String message = SearchMessages.CopyToClipboardAction_error_message;
if (MessageDialog.openQuestion(shell, title, message)) {
copyToClipboard(clipboard, str, shell);
}
}
}
private void copyToClipboard(String text, Shell shell) {
text = TextProcessor.deprocess(text);
Clipboard clipboard = new Clipboard(shell.getDisplay());
try {
copyToClipboard(clipboard, text, shell);
} finally {
clipboard.dispose();
}
}
@SuppressWarnings("rawtypes")
private Iterator getSelection() {
ISelection s = fViewer.getSelection();
if (s instanceof IStructuredSelection) {
return ((IStructuredSelection) s).iterator();
}
return Collections.EMPTY_LIST.iterator();
}
}