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
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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/GUniquePtr.h>
34#include <wtf/text/CString.h>
35
36using namespace WebCore;
37
38namespace WebKit {
39
40WebPopupMenuProxyGtk::WebPopupMenuProxyGtk(GtkWidget* webView, WebPopupMenuProxy::Client* client)
41    : WebPopupMenuProxy(client)
42    , m_webView(webView)
43    , m_activeItem(-1)
44{
45}
46
47WebPopupMenuProxyGtk::~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
55GtkAction* WebPopupMenuProxyGtk::createGtkActionForMenuItem(const WebPopupItem& item, int itemIndex)
56{
57    GUniquePtr<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
66void WebPopupMenuProxyGtk::showPopupMenu(const IntRect& rect, TextDirection, double /* pageScaleFactor */, const Vector<WebPopupItem>& items, const PlatformPopupMenuData&, 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// This is to suppress warnings about gdk_threads_leave and gdk_threads_enter.
101#pragma GCC diagnostic push
102#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
103    gdk_threads_leave();
104    g_main_loop_run(m_runLoop.get());
105    gdk_threads_enter();
106#pragma GCC diagnostic pop
107
108    m_runLoop.clear();
109
110    g_signal_handler_disconnect(m_popup->platformMenu(), unmapHandler);
111
112    if (!m_client)
113        return;
114
115    m_client->valueChangedForPopupMenu(this, m_activeItem);
116}
117
118void WebPopupMenuProxyGtk::hidePopupMenu()
119{
120    m_popup->popDown();
121}
122
123void WebPopupMenuProxyGtk::shutdownRunLoop()
124{
125    if (g_main_loop_is_running(m_runLoop.get()))
126        g_main_loop_quit(m_runLoop.get());
127}
128
129void WebPopupMenuProxyGtk::menuItemActivated(GtkAction* action, WebPopupMenuProxyGtk* popupMenu)
130{
131    popupMenu->setActiveItem(GPOINTER_TO_INT(g_object_get_data(G_OBJECT(action), "popup-menu-action-index")));
132    popupMenu->shutdownRunLoop();
133}
134
135void WebPopupMenuProxyGtk::menuUnmapped(GtkWidget*, WebPopupMenuProxyGtk* popupMenu)
136{
137    popupMenu->shutdownRunLoop();
138}
139
140} // namespace WebKit
141