package org.eclipse.debug.internal.ui.actions; | |
/* | |
* (c) Copyright IBM Corp. 2000, 2001. | |
* All Rights Reserved. | |
*/ | |
import java.util.ArrayList; | |
import java.util.Iterator; | |
import java.util.List; | |
import org.eclipse.debug.core.model.IDebugElement; | |
import org.eclipse.debug.core.model.IDebugTarget; | |
import org.eclipse.debug.core.model.IThread; | |
import org.eclipse.debug.ui.IDebugView; | |
import org.eclipse.jface.action.IAction; | |
import org.eclipse.jface.dialogs.MessageDialog; | |
import org.eclipse.jface.viewers.ContentViewer; | |
import org.eclipse.jface.viewers.ILabelProvider; | |
import org.eclipse.jface.viewers.ISelection; | |
import org.eclipse.jface.viewers.IStructuredSelection; | |
import org.eclipse.jface.viewers.ITreeContentProvider; | |
import org.eclipse.jface.viewers.StructuredViewer; | |
import org.eclipse.jface.viewers.ViewerFilter; | |
import org.eclipse.swt.SWTError; | |
import org.eclipse.swt.custom.BusyIndicator; | |
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.widgets.Display; | |
public class CopyToClipboardActionDelegate extends AbstractDebugActionDelegate { | |
private ContentViewer fViewer; | |
/** | |
* @see AbstractDebugActionDelegate#initialize(IAction, ISelection) | |
*/ | |
protected boolean initialize(IAction action, ISelection selection) { | |
if (!isInitialized()) { | |
IDebugView adapter= (IDebugView)getView().getAdapter(IDebugView.class); | |
if (adapter != null) { | |
if (adapter.getViewer() instanceof ContentViewer) { | |
setViewer((ContentViewer) adapter.getViewer()); | |
} | |
adapter.setAction(getActionId(), action); | |
} | |
return super.initialize(action, selection); | |
} | |
return false; | |
} | |
protected String getActionId() { | |
return IDebugView.COPY_ACTION; | |
} | |
/** | |
* @see AbstractDebugActionDelegate#isEnabledFor(Object) | |
*/ | |
protected boolean isEnabledFor(Object element) { | |
return getViewer() != null && element instanceof IDebugElement; | |
} | |
/** | |
* @see AbstractDebugActionDelegate#doAction(Object) | |
*/ | |
protected void doAction(Object element, StringBuffer buffer) { | |
append(element, buffer, (ILabelProvider)getViewer().getLabelProvider(), 0); | |
} | |
/** | |
* Appends the representation of the specified element (using the label provider and indent) | |
* to the buffer. For elements down to stack frames, children representations | |
* are append to the buffer as well. | |
*/ | |
protected void append(Object e, StringBuffer buffer, ILabelProvider lp, int indent) { | |
for (int i= 0; i < indent; i++) { | |
buffer.append('\t'); | |
} | |
buffer.append(lp.getText(e)); | |
buffer.append(System.getProperty("line.separator")); //$NON-NLS-1$ | |
if (shouldAppendChildren(e)) { | |
Object[] children= new Object[0]; | |
children= getChildren(e); | |
for (int i = 0;i < children.length; i++) { | |
Object de= children[i]; | |
append(de, buffer, lp, indent + 1); | |
} | |
} | |
} | |
protected Object getParent(Object e) { | |
return ((ITreeContentProvider) getViewer().getContentProvider()).getParent(e); | |
} | |
/** | |
* Returns the children of the parent after applying the filters | |
* that are present in the viewer. | |
*/ | |
protected Object[] getChildren(Object parent) { | |
Object[] children= ((ITreeContentProvider)getViewer().getContentProvider()).getChildren(parent); | |
ViewerFilter[] filters= ((StructuredViewer)getViewer()).getFilters(); | |
if (filters != null) { | |
for (int i= 0; i < filters.length; i++) { | |
ViewerFilter f = filters[i]; | |
children = f.filter(getViewer(), parent, children); | |
} | |
} | |
return children; | |
} | |
/** | |
* Do the specific action using the current selection. | |
*/ | |
public void run(IAction action) { | |
final Iterator iter= pruneSelection(); | |
BusyIndicator.showWhile(Display.getCurrent(), new Runnable() { | |
public void run() { | |
StringBuffer buffer= new StringBuffer(); | |
while (iter.hasNext()) { | |
doAction(iter.next(), buffer); | |
} | |
TextTransfer plainTextTransfer = TextTransfer.getInstance(); | |
Clipboard clipboard= new Clipboard(getViewer().getControl().getDisplay()); | |
try { | |
doCopy(clipboard, plainTextTransfer, buffer); | |
} finally { | |
clipboard.dispose(); | |
} | |
} | |
}); | |
} | |
protected void doCopy(Clipboard clipboard, TextTransfer plainTextTransfer, StringBuffer buffer) { | |
try { | |
clipboard.setContents( | |
new String[]{buffer.toString()}, | |
new Transfer[]{plainTextTransfer}); | |
} catch (SWTError e){ | |
if (e.code != DND.ERROR_CANNOT_SET_CLIPBOARD) { | |
throw e; | |
} | |
if (MessageDialog.openQuestion(getViewer().getControl().getShell(), ActionMessages.getString("CopyToClipboardActionDelegate.Problem_Copying_to_Clipboard_1"), ActionMessages.getString("CopyToClipboardActionDelegate.There_was_a_problem_when_accessing_the_system_clipboard._Retry__2"))) { //$NON-NLS-1$ //$NON-NLS-2$ | |
doCopy(clipboard, plainTextTransfer, buffer); | |
} | |
} | |
} | |
/** | |
* Removes the duplicate items from the selection. | |
* That is, if both a parent and a child are in a selection | |
* remove the child. | |
*/ | |
protected Iterator pruneSelection() { | |
IStructuredSelection selection= (IStructuredSelection)getViewer().getSelection(); | |
List elements= new ArrayList(selection.size()); | |
Iterator iter= selection.iterator(); | |
while (iter.hasNext()) { | |
Object element= iter.next(); | |
if (isEnabledFor(element)) { | |
if(walkHierarchy(element, elements)) { | |
elements.add(element); | |
} | |
} | |
} | |
return elements.iterator(); | |
} | |
/** | |
* Returns whether the parent of the specified | |
* element is already contained in the collection. | |
*/ | |
protected boolean walkHierarchy(Object element, List elements) { | |
Object parent= getParent(element); | |
if (parent == null) { | |
return true; | |
} | |
if (elements.contains(parent)) { | |
return false; | |
} | |
return walkHierarchy(parent, elements); | |
} | |
protected boolean shouldAppendChildren(Object e) { | |
return e instanceof IDebugTarget || e instanceof IThread; | |
} | |
protected ContentViewer getViewer() { | |
return fViewer; | |
} | |
protected void setViewer(ContentViewer viewer) { | |
fViewer = viewer; | |
} | |
/** | |
* @see AbstractDebugActionDelegate#doAction(Object) | |
*/ | |
protected void doAction(Object element) { | |
//not used | |
} | |
} |