--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.diagram.ui.e4;\r
+\r
+import java.awt.geom.Point2D;\r
+\r
+import org.eclipse.e4.ui.model.application.ui.basic.MPart;\r
+import org.eclipse.e4.ui.model.application.ui.menu.MMenu;\r
+import org.eclipse.e4.ui.model.application.ui.menu.MMenuFactory;\r
+import org.eclipse.e4.ui.model.application.ui.menu.MPopupMenu;\r
+import org.eclipse.jface.action.GroupMarker;\r
+import org.eclipse.jface.action.IMenuListener2;\r
+import org.eclipse.jface.action.IMenuManager;\r
+import org.eclipse.jface.action.MenuManager;\r
+import org.eclipse.swt.SWT;\r
+import org.eclipse.swt.events.MenuAdapter;\r
+import org.eclipse.swt.events.MenuEvent;\r
+import org.eclipse.swt.events.MenuListener;\r
+import org.eclipse.swt.graphics.Point;\r
+import org.eclipse.swt.widgets.Control;\r
+import org.eclipse.swt.widgets.Display;\r
+import org.eclipse.swt.widgets.Event;\r
+import org.eclipse.swt.widgets.Listener;\r
+import org.eclipse.swt.widgets.Menu;\r
+import org.eclipse.ui.IWorkbenchActionConstants;\r
+import org.eclipse.ui.IWorkbenchPartSite;\r
+import org.simantics.diagram.ui.WorkbenchSelectionProvider;\r
+import org.simantics.g2d.canvas.ICanvasContext;\r
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;\r
+import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;\r
+import org.simantics.g2d.diagram.DiagramHints;\r
+import org.simantics.g2d.participant.TransformUtil;\r
+import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;\r
+import org.simantics.scenegraph.g2d.events.command.CommandEvent;\r
+import org.simantics.scenegraph.g2d.events.command.ShowPopup;\r
+import org.simantics.utils.datastructures.hints.HintListenerAdapter;\r
+import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
+import org.simantics.utils.datastructures.hints.IHintListener;\r
+import org.simantics.utils.datastructures.hints.IHintObservable;\r
+\r
+/**\r
+ * A participant that initializes an SWT pop-up menu and registers it with the\r
+ * Eclipse workbench if a workbench site is provided. The client can specify the\r
+ * ID of the menu to create which allows the user to control contributions via\r
+ * Eclipse's declarative command mechanisms.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class SWTPopupMenuParticipant extends AbstractCanvasParticipant {\r
+\r
+ @Dependency\r
+ WorkbenchSelectionProvider wbsp;\r
+ @Dependency\r
+ TransformUtil trUtil;\r
+\r
+ MPart part;\r
+ Control control;\r
+ Display display;\r
+ MenuManager menuManager;\r
+ String menuId;\r
+\r
+ IHintListener popupListener = new HintListenerAdapter() {\r
+ @Override\r
+ public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
+ if (key == DiagramHints.SHOW_POPUP_MENU) {\r
+ if (newValue != null) {\r
+ Control c = control;\r
+ if (display.isDisposed() || c == null || c.isDisposed())\r
+ return;\r
+\r
+ showPopup((Point2D) newValue);\r
+ }\r
+ }\r
+ }\r
+ };\r
+\r
+ IMenuListener2 menuManagerListener = new IMenuListener2() {\r
+ @Override\r
+ public void menuAboutToShow(IMenuManager manager) {\r
+ manager.add(new GroupMarker(IWorkbenchActionConstants.WB_START));\r
+// manager.add(new GroupMarker(IWorkbenchActionConstants.NEW_EXT));\r
+// manager.add(new GroupMarker(IWorkbenchActionConstants.IMPORT_EXT));\r
+// manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));\r
+// manager.add(new GroupMarker(IWorkbenchActionConstants.WB_END));\r
+ }\r
+ @Override\r
+ public void menuAboutToHide(IMenuManager manager) {\r
+ }\r
+ };\r
+\r
+ MenuListener menuListener = new MenuAdapter() {\r
+ @Override\r
+ public void menuShown(MenuEvent e) {\r
+ asyncExec(new Runnable() {\r
+ @Override\r
+ public void run() {\r
+ final long time = System.currentTimeMillis();\r
+ //System.out.println("popup shown: " + time);\r
+ setHint(DiagramHints.POPUP_MENU_SHOWN, time);\r
+ removeHint(DiagramHints.POPUP_MENU_HIDDEN);\r
+ }\r
+ });\r
+ }\r
+ @Override\r
+ public void menuHidden(MenuEvent e) {\r
+ asyncExec(new Runnable() {\r
+ @Override\r
+ public void run() {\r
+ final long time = System.currentTimeMillis();\r
+ //System.out.println("popup closed: " + time);\r
+ removeHint(DiagramHints.POPUP_MENU_SHOWN);\r
+ setHint(DiagramHints.POPUP_MENU_HIDDEN, time);\r
+ }\r
+ });\r
+ }\r
+ };\r
+\r
+ /**\r
+ * NOTE: this constructor must currently be invoked from the SWT display\r
+ * thread.\r
+ * \r
+ * @param site\r
+ * @param control\r
+ * @param menuId\r
+ * @deprecated use {@link #SWTPopupMenuParticipant(IWorkbenchPartSite, Control, Display, String)} instead\r
+ */\r
+ public SWTPopupMenuParticipant(MPart part, Control control, String menuId) {\r
+ this(part, control, control.getDisplay(), menuId);\r
+ }\r
+\r
+ public SWTPopupMenuParticipant(MPart part, Control control, Display display, String menuId) {\r
+ super();\r
+ this.part = part;\r
+ this.control = control;\r
+ this.display = display;\r
+ this.menuId = menuId;\r
+ control.addListener(SWT.Dispose, new Listener() {\r
+\r
+ @Override\r
+ public void handleEvent(Event event) {\r
+ SWTPopupMenuParticipant.this.control = null;\r
+ if(menuManager != null) {\r
+ menuManager.removeAll();\r
+ menuManager.dispose();\r
+ menuManager = null;\r
+ }\r
+ }\r
+ \r
+ });\r
+ }\r
+\r
+ @Override\r
+ public void addedToContext(ICanvasContext ctx) {\r
+ super.addedToContext(ctx);\r
+\r
+ display.asyncExec(new Runnable() {\r
+ @Override\r
+ public void run() {\r
+ if (control == null || control.isDisposed())\r
+ return;\r
+ menuManager = createPopupMenu();\r
+ if (menuManager != null) {\r
+ Menu menu = menuManager.createContextMenu(control);\r
+ menu.addMenuListener(menuListener);\r
+ control.setMenu(menu);\r
+ if (part != null) {\r
+ // #TODO Finish this when we are going to use full E4 workbench\r
+// site.registerContextMenu(menuManager.getId(), menuManager, wbsp);\r
+ }\r
+ }\r
+ }\r
+ });\r
+\r
+ getHintStack().addKeyHintListener(DiagramHints.SHOW_POPUP_MENU, popupListener);\r
+ }\r
+\r
+ @Override\r
+ public void removedFromContext(ICanvasContext ctx) {\r
+ getHintStack().removeKeyHintListener(DiagramHints.SHOW_POPUP_MENU, popupListener);\r
+ super.removedFromContext(ctx);\r
+ }\r
+\r
+ protected MenuManager createPopupMenu() {\r
+ // #TODO Finish this when we are going to use full E4 workbench\r
+// MPopupMenu popupMenu = MMenuFactory.INSTANCE.createPopupMenu();\r
+// popupMenu.setLabel("Canvas Popup");\r
+// popupMenu.setElementId(menuId);\r
+// popupMenu.l\r
+ \r
+ final MenuManager mm = new MenuManager("Canvas Popup", menuId);\r
+ mm.setRemoveAllWhenShown(true);\r
+ mm.addMenuListener(menuManagerListener);\r
+ return mm;\r
+ }\r
+\r
+ @EventHandler(priority = 0)\r
+ public boolean handleCommands(CommandEvent e) {\r
+ if (e.command instanceof ShowPopup) {\r
+ showPopup(((ShowPopup) e.command).getControlPosition());\r
+ return true;\r
+ }\r
+ return false;\r
+ }\r
+\r
+ /**\r
+ * @param newValue\r
+ * @thread canvas-thread (AWT)\r
+ */\r
+ protected void showPopup(Point2D newValue) {\r
+ final Point2D cp = (Point2D) newValue;\r
+ setHint(DiagramHints.POPUP_MENU_CONTROL_POSITION, cp);\r
+ setHint(DiagramHints.POPUP_MENU_CANVAS_POSITION, trUtil.controlToCanvas(cp, null));\r
+ display.asyncExec(new Runnable() {\r
+ @Override\r
+ public void run() {\r
+ if (control == null || control.isDisposed())\r
+ return;\r
+ Point p = control.toDisplay((int) cp.getX(), (int) cp.getY());\r
+ menuManager.getMenu().setLocation(p);\r
+ menuManager.getMenu().setVisible(true);\r
+ }\r
+ });\r
+ }\r
+\r
+}\r
Code Review / simantics / platform.git / blobdiff