Bug 488965: Trying to select a default hyperlink without selecting one first result in hanged application

https://bugs.eclipse.org/bugs/show_bug.cgi?id=488965

Overhaul the hyperlink management UI:

* use proper JFace dialogs instead of VE-generated shells
* don't implement a flat property-sheet-like white look (instead
  a more native look-and-feel, especially for tabs on Mac)
* stack modal dialogs properly instead of all on the workbench window
* implement enablement of buttons to reflect availability of
  up/down/left/right and modify/delete actions
* implement intuitive response to double-click to cut down on number of
  gestures required to complete an edit
* implement proper action listeners on buttons (not mouse-down)
* fix deletion of existing hyperlink when canceling an edit (web and
  document hyperlinks)
* disable modify button for specific-object hyperlinks, which don't
  support editing

Change-Id: I16a27a4e978bcc2204eeac2991edd1a1fbb445ca

1 files changed, 31 insertions, 1 deletions

diff --git a/plugins/infra/ui/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/EditorHelper.java b/plugins/infra/ui/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/EditorHelper.java
index 4835ae0e764..446f7f1c756 100644
--- a/plugins/infra/ui/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/EditorHelper.java
+++ b/plugins/infra/ui/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/EditorHelper.java
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * Copyright (c) 2012 CEA LIST.
+ * Copyright (c) 2012, 2016 CEA LIST, Christian W. Damus, and others.
  *
  *
  * All rights reserved. This program and the accompanying materials
@@ -9,10 +9,13 @@
  *
  * Contributors:
  *  Vincent Lorenzo (CEA LIST) Vincent.Lorenzo@cea.fr - Initial API and implementation
+ *  Christian W. Damus - bug 488965
  *
  *****************************************************************************/
 package org.eclipse.papyrus.infra.ui.util;
 
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.IWorkbenchPage;
@@ -33,6 +36,33 @@ public class EditorHelper {
 		// nothing to do
 	}
 
+
+	/**
+	 *
+	 * @return
+	 * 		the current workbench window or <code>null</code> if not found
+	 */
+	public static final Shell getActiveShell() {
+		final IWorkbench workbench = PlatformUI.getWorkbench();
+		if (workbench != null) {
+			return workbench.getActiveWorkbenchWindow().getShell();
+		}
+		return Display.getCurrent().getActiveShell();
+	}
+
+	/**
+	 *
+	 * @return
+	 * 		the current workbench window or <code>null</code> if not found
+	 */
+	public static final IWorkbenchWindow getActiveWindow() {
+		final IWorkbench workbench = PlatformUI.getWorkbench();
+		if (workbench != null) {
+			return workbench.getActiveWorkbenchWindow();
+		}
+		return null;
+	}
+
 	/**
 	 *
 	 * @return