1 /*
   2  * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.javafx.webkit.theme;
  27 
  28 import java.util.logging.Logger;
  29 import java.util.logging.Level;
  30 
  31 import javafx.event.ActionEvent;
  32 import javafx.event.EventHandler;
  33 
  34 import javafx.scene.control.ContextMenu;
  35 import javafx.scene.control.MenuItem;
  36 import javafx.scene.web.WebView;
  37 import javafx.stage.WindowEvent;
  38 
  39 import com.sun.webkit.Invoker;
  40 import com.sun.webkit.graphics.WCFont;
  41 import com.sun.webkit.graphics.WCPoint;
  42 import com.sun.webkit.WebPage;
  43 import com.sun.webkit.WebPageClient;
  44 
  45 public final class PopupMenuImpl extends com.sun.webkit.PopupMenu {
  46 
  47     private final static Logger log = Logger.getLogger(PopupMenuImpl.class.getName());
  48 
  49     private final ContextMenu popupMenu;
  50 
  51     public PopupMenuImpl() {
  52         popupMenu = new ContextMenu();
  53 
  54         popupMenu.setOnHidden(t1 -> {
  55             log.finer("onHidden");
  56             // Postpone notification. This is to let webkit
  57             // to process a mouse event first (in case the
  58             // event is the trigger of the closing). Otherwise,
  59             // if this is a click in a drop down list, webkit
  60             // will reopen the popup assuming it is hidden.
  61             Invoker.getInvoker().postOnEventThread(() -> {
  62                 log.finer("onHidden: notifying");
  63                 notifyPopupClosed();
  64             });
  65         });
  66         popupMenu.setOnAction(t -> {
  67             MenuItem item = (MenuItem) t.getTarget();
  68             log.log(Level.FINE, "onAction: item={0}", item);
  69             notifySelectionCommited(popupMenu.getItems().indexOf(item));
  70         });
  71     }
  72 
  73     @Override protected void show(WebPage page, final int x, final int y, final int width) {
  74         if (log.isLoggable(Level.FINE)) {
  75             log.log(Level.FINE, "show at [{0}, {1}], width={2}", new Object[] {x, y, width});
  76         }
  77         // TODO: doesn't work
  78         popupMenu.setPrefWidth(width);
  79         popupMenu.setPrefHeight(popupMenu.getHeight());
  80         doShow(popupMenu, page, x, y);
  81     }
  82 
  83     @Override protected void hide() {
  84         log.fine("hiding");
  85         popupMenu.hide();
  86     }
  87 
  88     @Override protected void appendItem(String itemText, boolean isLabel,
  89                                         boolean isSeparator, boolean isEnabled,
  90                                         int bgColor, int fgColor, WCFont font)
  91     {
  92         if (log.isLoggable(Level.FINEST)) {
  93             log.log(Level.FINEST, "itemText={0}, isLabel={1}, isSeparator={2}, isEnabled={3}, " +
  94                     "bgColor={4}, fgColor={5}, font={6}", new Object[] {itemText, isLabel,
  95                     isSeparator, isEnabled, bgColor, fgColor, font});
  96         }
  97         MenuItem item;
  98 
  99         if (isSeparator) {
 100             item = new ContextMenuImpl.SeparatorImpl(null);
 101         } else {
 102             item = new MenuItem(itemText);
 103             item.setDisable(!isEnabled);
 104             // TODO: set the rest of properties
 105         }
 106 
 107         item.setMnemonicParsing(false);
 108         popupMenu.getItems().add(item);
 109     }
 110 
 111     @Override protected void setSelectedItem(int index) {
 112         log.log(Level.FINEST, "index={0}", index);
 113         // TODO requestFocus is not supported currently
 114         //popupMenu.getItems().get(index).requestFocus();
 115     }
 116 
 117     static void doShow(final ContextMenu popup, WebPage page, int anchorX, int anchorY) {
 118         WebPageClient<WebView> client = page.getPageClient();
 119         assert (client != null);
 120         WCPoint pt = client.windowToScreen(new WCPoint(anchorX, anchorY));
 121         popup.show(client.getContainer().getScene().getWindow(), pt.getX(), pt.getY());
 122     }
 123 }