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/*******************************************************************************
* Copyright (c) 2000, 2014 IBM Corporation and others.
* 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
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.search.internal.ui;
import java.util.Collections;
import java.util.Iterator;
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.core.runtime.Assert;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider;
import org.eclipse.jface.viewers.IBaseLabelProvider;
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.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
public class CopyToClipboardAction extends Action {
private StructuredViewer fViewer;
public CopyToClipboardAction(StructuredViewer viewer) {
this();
Assert.isNotNull(viewer);
fViewer= viewer;
}
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));
}
/**
* @param viewer The viewer to set.
*/
public void setViewer(StructuredViewer viewer) {
fViewer= viewer;
}
@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();
}
/*
* Implements method from IAction
*/
@Override
public void run() {
Shell shell= SearchPlugin.getActiveWorkbenchShell();
if (shell == null || fViewer == null)
return;
IBaseLabelProvider labelProvider= fViewer.getLabelProvider();
String lineDelim= System.getProperty("line.separator"); //$NON-NLS-1$
StringBuffer buf= new StringBuffer();
Iterator iter= getSelection();
while (iter.hasNext()) {
if (buf.length() > 0) {
buf.append(lineDelim);
}
buf.append(getText(labelProvider, iter.next()));
}
if (buf.length() > 0) {
copyToClipboard(buf.toString(), shell);
}
}
private static String getText(IBaseLabelProvider labelProvider, Object object) {
if (labelProvider instanceof ILabelProvider)
return ((ILabelProvider)labelProvider).getText(object);
else if (labelProvider instanceof DelegatingStyledCellLabelProvider)
return ((DelegatingStyledCellLabelProvider)labelProvider).getStyledStringProvider().getStyledText(object).toString();
else
return object.toString();
}
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();
}
}
private Iterator getSelection() {
ISelection s= fViewer.getSelection();
if (s instanceof IStructuredSelection)
return ((IStructuredSelection)s).iterator();
return Collections.EMPTY_LIST.iterator();
}
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);
}
}
}
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