### Eclipse Workspace Patch 1.0
#P org.eclipse.compare
Index: compare/org/eclipse/compare/internal/CompareMessages.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/CompareMessages.java,v
retrieving revision 1.17.4.4
diff -u -r1.17.4.4 CompareMessages.java
--- compare/org/eclipse/compare/internal/CompareMessages.java	1 Aug 2008 13:08:19 -0000	1.17.4.4
+++ compare/org/eclipse/compare/internal/CompareMessages.java	5 Aug 2008 13:32:44 -0000
@@ -120,6 +120,13 @@
 	public static String CompareWithOther_clear;
 	public static String CompareWithOther_warning_two_way;
 	public static String CompareWithOther_info;
+	public static String CompareWithOther_clipboardButton;
+	public static String CompareWithOther_clipboardSection;
+	public static String CompareWithOther_fileName;
+	public static String CompareWithOther_createTmpFile_title;
+	public static String CompareWithOther_createTmpFile_message;
+	public static String CompareWithOther_noClipboardFile;
+	public static String CompareWithOther_noClipboardFile_ancestor;
 
 	static {
 		NLS.initializeMessages(BUNDLE_NAME, CompareMessages.class);
Index: compare/org/eclipse/compare/internal/CompareWithOtherResourceDialog.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/Attic/CompareWithOtherResourceDialog.java,v
retrieving revision 1.1.2.4
diff -u -r1.1.2.4 CompareWithOtherResourceDialog.java
--- compare/org/eclipse/compare/internal/CompareWithOtherResourceDialog.java	1 Aug 2008 13:08:19 -0000	1.1.2.4
+++ compare/org/eclipse/compare/internal/CompareWithOtherResourceDialog.java	5 Aug 2008 13:32:44 -0000
@@ -10,16 +10,33 @@
  *******************************************************************************/
 package org.eclipse.compare.internal;
 
+import java.io.ByteArrayInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
 import org.eclipse.compare.CompareConfiguration;
+import org.eclipse.compare.CompareUI;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IFolder;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.dialogs.IMessageProvider;
+import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.dialogs.TitleAreaDialog;
+import org.eclipse.jface.text.Document;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.source.SourceViewer;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.swt.SWT;
+import org.eclipse.swt.dnd.Clipboard;
 import org.eclipse.swt.dnd.DND;
 import org.eclipse.swt.dnd.DragSource;
 import org.eclipse.swt.dnd.DragSourceEvent;
@@ -38,6 +55,7 @@
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
@@ -49,7 +67,7 @@
 
 /**
  * This is a dialog that can invoke the compare editor on chosen files.
- * 
+ *
  * @since 3.4
  */
 public class CompareWithOtherResourceDialog extends TitleAreaDialog {
@@ -57,6 +75,18 @@
 	private int CLEAR_RETURN_CODE = 150; // any number != 0
 	private int MIN_WIDTH = 300;
 	private int MIN_HEIGHT = 175;
+	private int clipboardCounter = 0;
+	public final static String TMP_PROJECT_NAME = ".org.eclipse.compare.tmp"; //$NON-NLS-1$
+	private final static String TMP_PROJECT_FILE = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" //$NON-NLS-1$
+			+ "<projectDescription>\n" //$NON-NLS-1$
+			+ "\t<name>" + TMP_PROJECT_NAME + "\t</name>\n" //$NON-NLS-1$ //$NON-NLS-2$
+			+ "\t<comment></comment>\n" //$NON-NLS-1$
+			+ "\t<projects>\n" //$NON-NLS-1$
+			+ "\t</projects>\n" //$NON-NLS-1$
+			+ "\t<buildSpec>\n" //$NON-NLS-1$
+			+ "\t</buildSpec>\n" //$NON-NLS-1$
+			+ "\t<natures>\n" + "\t</natures>\n"   //$NON-NLS-1$//$NON-NLS-2$
+			+ "</projectDescription>"; //$NON-NLS-1$
 
 	private class FileTextDragListener implements DragSourceListener {
 
@@ -156,11 +186,274 @@
 
 	}
 
+	private class ClipboardDropListener implements DropTargetListener {
+
+		ClipboardAbstractSection clipboardSection;
+
+		public ClipboardDropListener(ClipboardAbstractSection clipboardSection) {
+			this.clipboardSection = clipboardSection;
+		}
+
+		public void dragEnter(DropTargetEvent event) {
+			if (event.detail == DND.DROP_DEFAULT) {
+				if ((event.operations & DND.DROP_COPY) != 0)
+					event.detail = DND.DROP_COPY;
+				else
+					event.detail = DND.DROP_NONE;
+			}
+
+			for (int i = 0; i < event.dataTypes.length; i++) {
+				if (TextTransfer.getInstance().isSupportedType(event.dataTypes[i])) {
+					event.currentDataType = event.dataTypes[i];
+					if (event.detail != DND.DROP_COPY)
+						event.detail = DND.DROP_NONE;
+					break;
+				}
+			}
+		}
+
+		public void dragLeave(DropTargetEvent event) {
+			clipboardSection.clipboardExpandable.setExpanded(true);
+			getShell().pack();
+		}
+
+		public void dragOperationChanged(DropTargetEvent event) {
+			// intentionally empty
+		}
+
+		public void dragOver(DropTargetEvent event) {
+			clipboardSection.clipboardExpandable.setExpanded(true);
+			getShell().pack();
+		}
+
+		public void drop(DropTargetEvent event) {
+			if (TextTransfer.getInstance().isSupportedType(event.currentDataType)) {
+				String txt = (String) event.data;
+				clipboardSection.viewer.setDocument(new Document(txt));
+				clipboardSection.getPanel().clearResource();
+				clipboardSection.updateErrorInfoForClipboard();
+			}
+		}
+
+		public void dropAccept(DropTargetEvent event) {
+			// intentionally empty
+		}
+
+	}
+
+	private abstract class ClipboardAbstractSection {
+
+		protected ExpandableComposite clipboardExpandable;
+		protected SourceViewer viewer;
+		protected Button createButton;
+		private InternalSection section;
+
+		public ClipboardAbstractSection(InternalSection section) {
+			this.section = section;
+		}
+
+		protected void createClipboardSection(Composite parent) {
+			final Composite p = parent;
+			clipboardExpandable = new ExpandableComposite(parent, SWT.NONE,
+					ExpandableComposite.TWISTIE);
+			clipboardExpandable
+					.setText(CompareMessages.CompareWithOther_clipboardSection);
+			Composite content = createContentsForClipboardSection(clipboardExpandable);
+			clipboardExpandable.setClient(content);
+			clipboardExpandable.addExpansionListener(new ExpansionAdapter() {
+				public void expansionStateChanged(ExpansionEvent e) {
+					p.layout();
+					getShell().pack();
+					if (e.getState()) {
+						section.fileText.setEnabled(false);
+						if (!section.resourceFromClipboard)
+							section.clearResourceWithoutPath(); // clearResource() causes clearing contents of fileText
+					} else {
+						section.fileText.setEnabled(true);
+						if (section.fileText.getText() != "") //$NON-NLS-1$
+							section.setResource(section.fileText.getText());
+					}
+					updateErrorInfoForClipboard();
+				}
+			});
+
+			GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
+			gd.horizontalSpan = 2;
+			clipboardExpandable.setLayoutData(gd);
+
+			initDropForClipboard();
+		}
+
+		private void initDropForClipboard() {
+			DropTarget clipboardTarget = new DropTarget(clipboardExpandable, DND.DROP_COPY | DND.DROP_DEFAULT);
+			Transfer[] types = new Transfer[] {TextTransfer.getInstance()};
+			clipboardTarget.setTransfer(types);
+			clipboardTarget.addDropListener(new ClipboardDropListener(this));
+		}
+
+		private Composite createContentsForClipboardSection(Composite parent) {
+
+			Composite contents = new Composite(parent, SWT.NONE);
+			contents.setLayout(new GridLayout(1, false));
+
+			viewer = new SourceViewer(contents, null, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
+			viewer.setEditable(false);
+			String content = (String) clipboard.getContents(TextTransfer.getInstance());
+			IDocument document = new Document(content);
+			viewer.setDocument(document);
+
+			GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
+			gd.horizontalSpan = 2;
+			gd.widthHint = 200;
+			gd.heightHint = 150;
+			viewer.getTextWidget().setLayoutData(gd);
+
+			viewer.getTextWidget().addModifyListener(new ModifyListener() {
+				public void modifyText(ModifyEvent e) {
+					String txt = (String) clipboard.getContents(TextTransfer.getInstance());
+					viewer.setDocument(new Document(txt));
+					updateErrorInfoForClipboard();
+				}
+			});
+
+			createButton = createButton(contents, CLEAR_RETURN_CODE,
+					CompareMessages.CompareWithOther_clipboardButton, false);
+			createButton.addSelectionListener(new SelectionListener() {
+				public void widgetDefaultSelected(SelectionEvent e) {
+					widgetSelected(e);
+				}
+				public void widgetSelected(SelectionEvent e) {
+					section.setResourceFromClipboard(createTmpFile(viewer.getDocument().get()));
+					updateErrorInfoForClipboard();
+				}
+			});
+
+			return contents;
+		}
+
+		private IFile createTmpFile(String fileContent) {
+			IFile file = null;
+			try {
+				IProject project = createTmpProject();
+				if (!project.isOpen())
+					project.open(null);
+				IFolder folder = project.getFolder("ClipboardFolder"); //$NON-NLS-1$
+				if (!folder.exists())
+					folder.create(IResource.NONE, true, null);
+				file = folder.getFile(CompareMessages.CompareWithOther_fileName
+						+ clipboardCounter++);
+				if (!file.exists()) {
+					InputStream source = new ByteArrayInputStream(fileContent
+							.getBytes());
+					file.create(source, IResource.NONE, null);
+				}
+			} catch (CoreException e) {
+				CompareUIPlugin.log(e);
+				MessageDialog.openError(getShell(),
+						CompareMessages.CompareWithOther_createTmpFile_title,
+						CompareMessages.CompareWithOther_createTmpFile_message);
+				return file;
+			}
+			return file;
+		}
+
+		private IProject createTmpProject() throws CoreException {
+			IProject tmpProject = getTmpProject();
+			if (!tmpProject.isAccessible()) {
+				try {
+					if (!tmpProject.exists()) {
+						IProjectDescription desc = tmpProject.getWorkspace().newProjectDescription(tmpProject.getName());
+						IPath location = CompareUI.getPlugin().getStateLocation();
+						desc.setLocation(location.append(TMP_PROJECT_NAME));
+						tmpProject.create(desc, null);
+					}
+					try {
+						tmpProject.open(null);
+					} catch (CoreException e1) { // in case .project file or folder has been deleted
+						IPath location1 = CompareUI.getPlugin().getStateLocation();
+						IPath projectPath1 = location1.append(TMP_PROJECT_NAME);
+						projectPath1.toFile().mkdirs();
+						FileOutputStream output = new FileOutputStream(
+								projectPath1.append(".project").toOSString()); //$NON-NLS-1$
+						try {
+							output.write(TMP_PROJECT_FILE.getBytes());
+						} finally {
+							output.close();
+						}
+						tmpProject.open(null);
+					}
+				} catch (IOException ioe) {
+					return tmpProject;
+				} catch (CoreException ce) {
+					throw new CoreException(ce.getStatus());
+				}
+			}
+			return tmpProject;
+		}
+
+		private IProject getTmpProject() {
+			return ResourcesPlugin.getWorkspace().getRoot().getProject(
+					TMP_PROJECT_NAME);
+		}
+
+		protected abstract void updateErrorInfoForClipboard();
+
+		protected boolean clipboardSectionExpanded() {
+			return clipboardExpandable.isExpanded();
+		}
+
+		protected boolean noResource() {
+			return section.getResource() == null;
+		}
+
+		public InternalSection getPanel() {
+			return section;
+		}
+
+	}
+
+	private class ClipboardSection extends ClipboardAbstractSection {
+
+		public ClipboardSection(InternalSection section) {
+			super(section);
+		}
+
+		protected void updateErrorInfoForClipboard() {
+			if (clipboardSectionExpanded() && noResource()) {
+				setMessage(CompareMessages.CompareWithOther_noClipboardFile, IMessageProvider.ERROR);
+				createButton.setEnabled(true);
+			} else {
+				updateErrorInfo();
+				createButton.setEnabled(false);
+			}
+		}
+	}
+
+
+	private class ClipboardAncestorSection extends ClipboardAbstractSection {
+
+		public ClipboardAncestorSection(InternalSection section) {
+			super(section);
+		}
+
+		protected void updateErrorInfoForClipboard() {
+			if (clipboardSectionExpanded() && noResource()) {
+				setMessage(CompareMessages.CompareWithOther_noClipboardFile_ancestor, IMessageProvider.WARNING);
+				createButton.setEnabled(true);
+			} else {
+				updateErrorInfo();
+				createButton.setEnabled(false);
+			}
+		}
+	}
+
+
 	private abstract class InternalSection {
 
 		protected Group group;
 		protected Text fileText;
 		private IResource resource;
+		private boolean resourceFromClipboard = false;
 
 		public InternalSection(Composite parent) {
 			createContents(parent);
@@ -172,8 +465,6 @@
 
 		public void createContents(Composite parent) {
 			createGroup(parent);
-			createFileLabel();
-			createFileCombo();
 			initDrag();
 			initDrop();
 		}
@@ -183,19 +474,25 @@
 		}
 
 		public void setResource(IResource resource) {
+			resourceFromClipboard = false;
 			this.resource = resource;
 			String txt = resource.getFullPath().toString();
 			fileText.setText(txt);
 		}
 
 		public void setResource(String s) {
+			resourceFromClipboard = false;
 			IResource tmp = ResourcesPlugin.getWorkspace().getRoot()
 					.findMember(s);
 			if (tmp instanceof IWorkspaceRoot)
 				resource = null;
 			else
 				resource = tmp;
+		}
 
+		public void setResourceFromClipboard(IResource resource) {
+			resourceFromClipboard = true;
+			this.resource = resource;
 		}
 
 		protected void clearResource() {
@@ -204,6 +501,11 @@
 			updateErrorInfo();
 		}
 
+		protected void clearResourceWithoutPath() {
+			resource = null;
+			updateErrorInfo();
+		}
+
 		protected void initDrag() {
 			DragSource source = new DragSource(fileText, DND.DROP_MOVE
 					| DND.DROP_COPY | DND.DROP_DEFAULT);
@@ -224,14 +526,15 @@
 
 		protected void createGroup(Composite parent) {
 			group = new Group(parent, SWT.NONE);
-			group.setLayout(new GridLayout(3, false));
+			group.setLayout(new GridLayout(2, false));
 			group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+			createFileLabel(group);
+			createFileCombo(group);
 		}
 
-		protected void createFileCombo() {
-			fileText = new Text(group, SWT.BORDER);
-			fileText
-					.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+		protected void createFileCombo(Composite parent) {
+			fileText = new Text(parent, SWT.BORDER);
+			fileText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
 
 			fileText.addModifyListener(new ModifyListener() {
 				public void modifyText(ModifyEvent e) {
@@ -254,18 +557,26 @@
 			});
 		}
 
-		protected void createFileLabel() {
-			final Label fileLabel = new Label(group, SWT.NONE);
+		protected void createFileLabel(Composite parent) {
+			final Label fileLabel = new Label(parent, SWT.NONE);
 			fileLabel.setText(CompareMessages.CompareWithOther_fileLabel);
 		}
 	}
 
 	private class InternalGroup extends InternalSection {
 
+		private ClipboardSection clipboardSection;
+
 		public InternalGroup(Composite parent) {
+			this.clipboardSection = new ClipboardSection(this);
 			createContents(parent);
 		}
 
+		protected void createGroup(Composite parent) {
+			super.createGroup(parent);
+			clipboardSection.createClipboardSection(group);
+		}
+
 		public void setText(String text) {
 			group.setText(text);
 		}
@@ -278,17 +589,16 @@
 	private class InternalExpandable extends InternalSection {
 
 		private ExpandableComposite expandable;
-		private Button clearButton;
+		public Button clearButton;
+		private ClipboardAncestorSection clipboardAncestorSection;
 
 		public InternalExpandable(Composite parent) {
+			this.clipboardAncestorSection = new ClipboardAncestorSection(this);
 			createContents(parent);
 		}
 
 		public void createContents(Composite parent) {
 			createGroup(parent);
-			createFileLabel();
-			createFileCombo();
-			createClearButton(group);
 			initDrag();
 			initDrop();
 		}
@@ -302,8 +612,10 @@
 			expandable.addExpansionListener(new ExpansionAdapter() {
 				public void expansionStateChanged(ExpansionEvent e) {
 					p.layout();
+					getShell().pack();
 				}
 			});
+			clipboardAncestorSection.createClipboardSection(group);
 		}
 
 		protected void createClearButton(Composite parent) {
@@ -334,10 +646,11 @@
 	private InternalGroup rightPanel, leftPanel;
 	private InternalExpandable ancestorPanel;
 	private ISelection fselection;
+	Clipboard clipboard;
 
 	/**
 	 * Creates the dialog.
-	 * 
+	 *
 	 * @param shell
 	 *            a shell
 	 * @param selection
@@ -349,11 +662,12 @@
 		super(shell);
 		setShellStyle(SWT.MODELESS | SWT.RESIZE | SWT.MAX);
 		fselection = selection;
+		clipboard = new Clipboard(Display.getDefault());
 	}
 
 	/*
 	 * (non-Javadoc)
-	 * 
+	 *
 	 * @see
 	 * org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets
 	 * .Composite)
@@ -389,7 +703,7 @@
 
 	/*
 	 * (non-Javadoc)
-	 * 
+	 *
 	 * @see
 	 * org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse
 	 * .swt.widgets.Composite)
@@ -463,7 +777,7 @@
 	 * the ancestor panel, table has only two elements -- resources chosen in
 	 * left and right panel. In the other case table contains all three
 	 * resources.
-	 * 
+	 *
 	 * @return table with selected resources
 	 */
 	public IResource[] getResult() {
Index: compare/org/eclipse/compare/internal/CompareWithOtherResourceAction.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/Attic/CompareWithOtherResourceAction.java,v
retrieving revision 1.1.2.3
diff -u -r1.1.2.3 CompareWithOtherResourceAction.java
--- compare/org/eclipse/compare/internal/CompareWithOtherResourceAction.java	1 Aug 2008 13:08:19 -0000	1.1.2.3
+++ compare/org/eclipse/compare/internal/CompareWithOtherResourceAction.java	5 Aug 2008 13:32:44 -0000
@@ -10,11 +10,14 @@
  *******************************************************************************/
 package org.eclipse.compare.internal;
 
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
 import org.eclipse.jface.viewers.ISelection;
 
 /**
  * The "Compare with other resource" action
- * 
+ *
  * @since 3.4
  */
 public class CompareWithOtherResourceAction extends CompareAction {
@@ -23,6 +26,7 @@
 		// Show CompareWithOtherResourceDialog which return resources to compare
 		// and ancestor if specified. Don't need to display the other dialog
 		showSelectAncestorDialog = false;
+		cleanup();
 		super.run(selection);
 	}
 
@@ -32,4 +36,14 @@
 		return true;
 	}
 
+	private void cleanup() {
+		try {
+			String projectName = CompareWithOtherResourceDialog.TMP_PROJECT_NAME;
+			IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(projectName);
+			project.delete(true, true, null);
+		} catch (CoreException e) {
+			CompareUIPlugin.log(e);
+		}
+	}
+
 }
Index: compare/org/eclipse/compare/internal/CompareMessages.properties
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/CompareMessages.properties,v
retrieving revision 1.27.4.4
diff -u -r1.27.4.4 CompareMessages.properties
--- compare/org/eclipse/compare/internal/CompareMessages.properties	1 Aug 2008 13:08:19 -0000	1.27.4.4
+++ compare/org/eclipse/compare/internal/CompareMessages.properties	5 Aug 2008 13:32:44 -0000
@@ -131,4 +131,11 @@
 CompareWithOther_error_empty=Both left and right panel must contain a valid path.
 CompareWithOther_warning_two_way=Ancestor is not a valid resource. Two-way compare will be performed.
 CompareWithOther_clear=Clear
-CompareWithOther_info=Drag files from a view or between dialog's fields.
+CompareWithOther_info=Drag files from Package Explorer or from another field within the dialog or expand "Clipboard" if you want to use clipboard's content instead of a resource.
+CompareWithOther_clipboardButton=Create file
+CompareWithOther_clipboardSection=Clipboard
+CompareWithOther_fileName=Clipboard
+CompareWithOther_createTmpFile_title= Unable to create file
+CompareWithOther_createTmpFile_message= A file cannot be created from clipboard content.
+CompareWithOther_noClipboardFile=You have to create a file from clipboard's contents if you want to compare it with something. Click "Create file" button.
+CompareWithOther_noClipboardFile_ancestor=A file containing clipboard's content wasn't created. Click "Create file" button in the ancestor section if you want a three-way compare to be performed.