| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.views.navigator; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.util.Assert; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.swt.SWTError; |
| import org.eclipse.swt.dnd.*; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.actions.SelectionListenerAction; |
| import org.eclipse.ui.help.WorkbenchHelp; |
| import org.eclipse.ui.internal.WorkbenchMessages; |
| import org.eclipse.ui.part.ResourceTransfer; |
| |
| /** |
| * Standard action for copying the currently selected resources to the clipboard. |
| * <p> |
| * This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| * |
| * @since 2.0 |
| */ |
| /*package*/ class CopyAction extends SelectionListenerAction { |
| |
| /** |
| * The id of this action. |
| */ |
| public static final String ID = PlatformUI.PLUGIN_ID + ".CopyAction"; //$NON-NLS-1$ |
| |
| /** |
| * The shell in which to show any dialogs. |
| */ |
| private Shell shell; |
| |
| /** |
| * System clipboard |
| */ |
| private Clipboard clipboard; |
| |
| /** |
| * Associated paste action. May be <code>null</code> |
| */ |
| private PasteAction pasteAction; |
| |
| /** |
| * Creates a new action. |
| * |
| * @param shell the shell for any dialogs |
| * @param clipboard a platform clipboard |
| */ |
| public CopyAction(Shell shell, Clipboard clipboard) { |
| super(ResourceNavigatorMessages.getString("CopyAction.title")); //$NON-NLS-1$ |
| Assert.isNotNull(shell); |
| Assert.isNotNull(clipboard); |
| this.shell = shell; |
| this.clipboard = clipboard; |
| setToolTipText(ResourceNavigatorMessages.getString("CopyAction.toolTip")); //$NON-NLS-1$ |
| setId(CopyAction.ID); |
| WorkbenchHelp.setHelp(this, INavigatorHelpContextIds.COPY_ACTION); |
| } |
| /** |
| * Creates a new action. |
| * |
| * @param shell the shell for any dialogs |
| * @param clipboard a platform clipboard |
| * @param pasteAction a paste action |
| * |
| * @since 2.0 |
| */ |
| public CopyAction(Shell shell, Clipboard clipboard, PasteAction pasteAction) { |
| this(shell, clipboard); |
| this.pasteAction = pasteAction; |
| } |
| /** |
| * The <code>CopyAction</code> implementation of this method defined |
| * on <code>IAction</code> copies the selected resources to the |
| * clipboard. |
| */ |
| public void run(){ |
| List selectedResources = getSelectedResources(); |
| IResource[] resources = (IResource[]) selectedResources.toArray(new IResource[selectedResources.size()]); |
| |
| // Get the file names and a string representation |
| final int length = resources.length; |
| int actualLength = 0; |
| String[] fileNames = new String[length]; |
| StringBuffer buf = new StringBuffer(); |
| for (int i = 0; i < length; i++) { |
| IPath location = resources[i].getLocation(); |
| // location may be null. See bug 29491. |
| if (location != null) |
| fileNames[actualLength++] = location.toOSString(); |
| if (i > 0) |
| buf.append("\n"); //$NON-NLS-1$ |
| buf.append(resources[i].getName()); |
| } |
| // was one or more of the locations null? |
| if (actualLength < length) { |
| String[] tempFileNames = fileNames; |
| fileNames = new String[actualLength]; |
| for (int i = 0; i < actualLength; i++) |
| fileNames[i] = tempFileNames[i]; |
| } |
| setClipboard(resources, fileNames, buf.toString()); |
| |
| // update the enablement of the paste action |
| // workaround since the clipboard does not suppot callbacks |
| if (pasteAction != null && pasteAction.getStructuredSelection() != null) |
| pasteAction.selectionChanged(pasteAction.getStructuredSelection()); |
| } |
| /** |
| * Set the clipboard contents. Prompt to retry if clipboard is busy. |
| * |
| * @param resources the resources to copy to the clipboard |
| * @param fileNames file names of the resources to copy to the clipboard |
| * @param names string representation of all names |
| */ |
| private void setClipboard(IResource[] resources, String[] fileNames, String names) { |
| try { |
| // set the clipboard contents |
| if (fileNames.length > 0) { |
| clipboard.setContents( |
| new Object[]{ |
| resources, |
| fileNames, |
| names}, |
| new Transfer[]{ |
| ResourceTransfer.getInstance(), |
| FileTransfer.getInstance(), |
| TextTransfer.getInstance()}); |
| } else { |
| clipboard.setContents( |
| new Object[]{ |
| resources, |
| names}, |
| new Transfer[]{ |
| ResourceTransfer.getInstance(), |
| TextTransfer.getInstance()}); |
| } |
| } catch (SWTError e){ |
| if (e.code != DND.ERROR_CANNOT_SET_CLIPBOARD) |
| throw e; |
| if (MessageDialog.openQuestion(shell, WorkbenchMessages.getString("CopyToClipboardProblemDialog.title"), WorkbenchMessages.getString("CopyToClipboardProblemDialog.message"))) //$NON-NLS-1$ //$NON-NLS-2$ |
| setClipboard(resources, fileNames, names); |
| } |
| } |
| /** |
| * The <code>CopyAction</code> implementation of this |
| * <code>SelectionListenerAction</code> method enables this action if |
| * one or more resources of compatible types are selected. |
| */ |
| protected boolean updateSelection(IStructuredSelection selection) { |
| if (!super.updateSelection(selection)) |
| return false; |
| |
| if (getSelectedNonResources().size() > 0) |
| return false; |
| |
| List selectedResources = getSelectedResources(); |
| if (selectedResources.size() == 0) |
| return false; |
| |
| boolean projSelected = selectionIsOfType(IResource.PROJECT); |
| boolean fileFoldersSelected = selectionIsOfType(IResource.FILE | IResource.FOLDER); |
| if (!projSelected && !fileFoldersSelected) |
| return false; |
| |
| // selection must be homogeneous |
| if (projSelected && fileFoldersSelected) |
| return false; |
| |
| // must have a common parent |
| IContainer firstParent = ((IResource) selectedResources.get(0)).getParent(); |
| if (firstParent == null) |
| return false; |
| |
| Iterator resourcesEnum = selectedResources.iterator(); |
| while (resourcesEnum.hasNext()) { |
| IResource currentResource = (IResource) resourcesEnum.next(); |
| if (!currentResource.getParent().equals(firstParent)) |
| return false; |
| // resource location must exist |
| if (currentResource.getLocation() == null) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| } |
| |