Fix for ubuntu searchbox focus stickiness (dartbug.com/1675).

editor/tools/plugins/com.google.dart.tools.deploy/src/com/google/dart/tools/ui/omni/SearchBoxUtils.java

Index: editor/tools/plugins/com.google.dart.tools.deploy/src/com/google/dart/tools/ui/omni/SearchBoxUtils.java
===================================================================
--- editor/tools/plugins/com.google.dart.tools.deploy/src/com/google/dart/tools/ui/omni/SearchBoxUtils.java	(revision 0)
+++ editor/tools/plugins/com.google.dart.tools.deploy/src/com/google/dart/tools/ui/omni/SearchBoxUtils.java	(revision 0)
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2012, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.dart.tools.ui.omni;
+
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.PlatformUI;
+
+/**
+ * Searchbox-related utilities.
+ *
+ */
+public class SearchBoxUtils {
+  
+  /**
+   * Get the active shell from the workbench (if none is found, fall back
+   * to a sensible default).
+   * 
+   * @return the default/active workbench shell
+   */
+  public static Shell getActiveWorkbenchShell() { 
+    IWorkbenchWindow activeWindow = getActiveWindow();
+    if (activeWindow != null) {
+      return activeWindow.getShell();
+    }
+    return getActiveShell();
+  }
+
+  private static Shell getActiveShell() {
+    Shell shell = Display.getDefault().getActiveShell();
+    if (shell != null) {
+      return shell;
+    }
+    //if there's no active shell, grab the first one
+    Shell[] shells = Display.getDefault().getShells();
+    if (shells.length > 0) {
+      return shells[0];
+    }
+    //shouldn't get here
+    return null;
+  }
+
+  private static IWorkbenchWindow getActiveWindow() {
+    IWorkbenchWindow activeWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
+    if (activeWindow == null) {
+      IWorkbenchWindow[] windows = PlatformUI.getWorkbench().getWorkbenchWindows();
+      if (windows.length > 0) {
+        activeWindow = windows[0];
+      }
+    }
+    return activeWindow;
+  }
+   
+}