1) Moved net.sourceforge.phpeclipse.ui\src\net\sourceforge\phpdt back to net.sourcefo...

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / ui / dnd / LocalSelectionTransfer.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/LocalSelectionTransfer.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/LocalSelectionTransfer.java
new file mode 100644 (file)
index 0000000..6a870fd
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/LocalSelectionTransfer.java
@@ -0,0 +1,104 @@
+/*******************************************************************************
+ * 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 net.sourceforge.phpdt.internal.ui.dnd;
+
+import net.sourceforge.phpdt.internal.ui.PHPUIMessages;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.swt.dnd.ByteArrayTransfer;
+import org.eclipse.swt.dnd.TransferData;
+
+public class LocalSelectionTransfer extends ByteArrayTransfer {
+
+       // First attempt to create a UUID for the type name to make sure that
+       // different Eclipse applications use different "types" of
+       // <code>LocalSelectionTransfer</code>
+       private static final String TYPE_NAME = "local-selection-transfer-format" + (new Long(System.currentTimeMillis())).toString(); //$NON-NLS-1$;
+
+       private static final int TYPEID = registerType(TYPE_NAME);
+
+       private static final LocalSelectionTransfer INSTANCE = new LocalSelectionTransfer();
+
+       private ISelection fSelection;
+
+       private int fSelectionSetTime;
+
+       private LocalSelectionTransfer() {
+       }
+
+       /**
+        * Returns the singleton.
+        */
+       public static LocalSelectionTransfer getInstance() {
+               return INSTANCE;
+       }
+
+       /**
+        * Sets the transfer data for local use.
+        */
+       public void setSelection(ISelection s) {
+               fSelection = s;
+       }
+
+       /**
+        * Returns the local transfer data.
+        */
+       public ISelection getSelection() {
+               return fSelection;
+       }
+
+       public void javaToNative(Object object, TransferData transferData) {
+               // No encoding needed since this is a hardcoded string read and written
+               // in the same process.
+               // See nativeToJava below
+               byte[] check = TYPE_NAME.getBytes();
+               super.javaToNative(check, transferData);
+       }
+
+       public Object nativeToJava(TransferData transferData) {
+               Object result = super.nativeToJava(transferData);
+               if (isInvalidNativeType(result)) {
+                       PHPeclipsePlugin.log(IStatus.ERROR, PHPUIMessages
+                                       .getString("LocalSelectionTransfer.errorMessage")); //$NON-NLS-1$
+               }
+               return fSelection;
+       }
+
+       private boolean isInvalidNativeType(Object result) {
+               // No encoding needed since this is a hardcoded string read and written
+               // in the same process.
+               // See javaToNative above
+               return !(result instanceof byte[])
+                               || !TYPE_NAME.equals(new String((byte[]) result));
+       }
+
+       /**
+        * The type id used to identify this transfer.
+        */
+       protected int[] getTypeIds() {
+               return new int[] { TYPEID };
+       }
+
+       protected String[] getTypeNames() {
+               return new String[] { TYPE_NAME };
+       }
+
+       public int getSelectionSetTime() {
+               return fSelectionSetTime;
+       }
+
+       public void setSelectionSetTime(int time) {
+               fSelectionSetTime = time;
+       }
+
+}