Source/WebKit2/UIProcess/gtk/WebPopupMenuProxyGtk.cpp

   1 /*
   2  * Copyright (C) 2011 Igalia S.L.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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  22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  23  * THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "WebPopupMenuProxyGtk.h"
  28
  29 #include "NativeWebMouseEvent.h"
  30 #include "WebPopupItem.h"
  31 #include <WebCore/GtkUtilities.h>
  32 #include <gtk/gtk.h>
  33 #include <wtf/gobject/GOwnPtr.h>
  34 #include <wtf/text/CString.h>
  35
  36 using namespace WebCore;
  37
  38 namespace WebKit {
  39
  40 WebPopupMenuProxyGtk::WebPopupMenuProxyGtk(GtkWidget* webView, WebPopupMenuProxy::Client* client)
  41     : WebPopupMenuProxy(client)
  42     , m_webView(webView)
  43     , m_activeItem(-1)
  44 {
  45 }
  46
  47 WebPopupMenuProxyGtk::~WebPopupMenuProxyGtk()
  48 {
  49     if (m_popup) {
  50         g_signal_handlers_disconnect_matched(m_popup->platformMenu(), G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, this);
  51         hidePopupMenu();
  52     }
  53 }
  54
  55 GtkAction* WebPopupMenuProxyGtk::createGtkActionForMenuItem(const WebPopupItem& item, int itemIndex)
  56 {
  57     GOwnPtr<char> actionName(g_strdup_printf("popup-menu-action-%d", itemIndex));
  58     GtkAction* action = gtk_action_new(actionName.get(), item.m_text.utf8().data(), item.m_toolTip.utf8().data(), 0);
  59     g_object_set_data(G_OBJECT(action), "popup-menu-action-index", GINT_TO_POINTER(itemIndex));
  60     g_signal_connect(action, "activate", G_CALLBACK(menuItemActivated), this);
  61     gtk_action_set_sensitive(action, item.m_isEnabled);
  62
  63     return action;
  64 }
  65
  66 void WebPopupMenuProxyGtk::showPopupMenu(const IntRect& rect, TextDirection textDirection, double pageScaleFactor, const Vector<WebPopupItem>& items, const PlatformPopupMenuData& data, int32_t selectedIndex)
  67 {
  68     if (m_popup)
  69         m_popup->clear();
  70     else
  71         m_popup = GtkPopupMenu::create();
  72
  73     const int size = items.size();
  74     for (int i = 0; i < size; i++) {
  75         if (items[i].m_type == WebPopupItem::Separator)
  76             m_popup->appendSeparator();
  77         else {
  78             GRefPtr<GtkAction> action = adoptGRef(createGtkActionForMenuItem(items[i], i));
  79             m_popup->appendItem(action.get());
  80         }
  81     }
  82
  83     IntPoint menuPosition = convertWidgetPointToScreenPoint(m_webView, rect.location());
  84     menuPosition.move(0, rect.height());
  85
  86     gulong unmapHandler = g_signal_connect(m_popup->platformMenu(), "unmap", G_CALLBACK(menuUnmapped), this);
  87     m_popup->popUp(rect.size(), menuPosition, size, selectedIndex, m_client->currentlyProcessedMouseDownEvent() ? m_client->currentlyProcessedMouseDownEvent()->nativeEvent() : 0);
  88
  89     // PopupMenu can fail to open when there is no mouse grab.
  90     // Ensure WebCore does not go into some pesky state.
  91     if (!gtk_widget_get_visible(m_popup->platformMenu())) {
  92        m_client->failedToShowPopupMenu();
  93        return;
  94     }
  95
  96     // WebPageProxy expects the menu to run in a nested run loop, since it invalidates the
  97     // menu right after calling WebPopupMenuProxy::showPopupMenu().
  98     m_runLoop = adoptGRef(g_main_loop_new(0, FALSE));
  99
 100     g_main_loop_run(m_runLoop.get());
 101
 102     m_runLoop.clear();
 103
 104     g_signal_handler_disconnect(m_popup->platformMenu(), unmapHandler);
 105
 106     if (!m_client)
 107         return;
 108
 109     m_client->valueChangedForPopupMenu(this, m_activeItem);
 110 }
 111
 112 void WebPopupMenuProxyGtk::hidePopupMenu()
 113 {
 114     m_popup->popDown();
 115 }
 116
 117 void WebPopupMenuProxyGtk::shutdownRunLoop()
 118 {
 119     if (g_main_loop_is_running(m_runLoop.get()))
 120         g_main_loop_quit(m_runLoop.get());
 121 }
 122
 123 void WebPopupMenuProxyGtk::menuItemActivated(GtkAction* action, WebPopupMenuProxyGtk* popupMenu)
 124 {
 125     popupMenu->setActiveItem(GPOINTER_TO_INT(g_object_get_data(G_OBJECT(action), "popup-menu-action-index")));
 126     popupMenu->shutdownRunLoop();
 127 }
 128
 129 void WebPopupMenuProxyGtk::menuUnmapped(GtkWidget*, WebPopupMenuProxyGtk* popupMenu)
 130 {
 131     popupMenu->shutdownRunLoop();
 132 }
 133
 134 } // namespace WebKit