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 "WebContextMenuProxyGtk.h" 28 29#if ENABLE(CONTEXT_MENUS) 30 31#include "NativeWebMouseEvent.h" 32#include "WebContextMenuItemData.h" 33#include "WebKitWebViewBasePrivate.h" 34#include "WebPageProxy.h" 35#include <WebCore/GtkUtilities.h> 36#include <gtk/gtk.h> 37#include <wtf/text/CString.h> 38 39 40static const char* gContextMenuActionId = "webkit-context-menu-action"; 41 42using namespace WebCore; 43 44namespace WebKit { 45 46static void contextMenuItemActivatedCallback(GtkAction* action, WebPageProxy* page) 47{ 48 gboolean isToggle = GTK_IS_TOGGLE_ACTION(action); 49 WebKit::WebContextMenuItemData item(isToggle ? WebCore::CheckableActionType : WebCore::ActionType, 50 static_cast<WebCore::ContextMenuAction>(GPOINTER_TO_INT(g_object_get_data(G_OBJECT(action), gContextMenuActionId))), 51 String::fromUTF8(gtk_action_get_label(action)), gtk_action_get_sensitive(action), 52 isToggle ? gtk_toggle_action_get_active(GTK_TOGGLE_ACTION(action)) : false); 53 page->contextMenuItemSelected(item); 54} 55 56static void contextMenuItemVisibilityChanged(GtkAction*, GParamSpec*, WebContextMenuProxyGtk* contextMenuProxy) 57{ 58 GtkMenu* menu = contextMenuProxy->gtkMenu(); 59 if (!menu) 60 return; 61 62 GUniquePtr<GList> items(gtk_container_get_children(GTK_CONTAINER(menu))); 63 bool previousVisibleItemIsNotASeparator = false; 64 GtkWidget* lastItemVisibleSeparator = 0; 65 for (GList* iter = items.get(); iter; iter = g_list_next(iter)) { 66 GtkWidget* widget = GTK_WIDGET(iter->data); 67 68 if (GTK_IS_SEPARATOR_MENU_ITEM(widget)) { 69 if (previousVisibleItemIsNotASeparator) { 70 gtk_widget_show(widget); 71 lastItemVisibleSeparator = widget; 72 previousVisibleItemIsNotASeparator = false; 73 } else 74 gtk_widget_hide(widget); 75 } else if (gtk_widget_get_visible(widget)) { 76 lastItemVisibleSeparator = 0; 77 previousVisibleItemIsNotASeparator = true; 78 } 79 } 80 81 if (lastItemVisibleSeparator) 82 gtk_widget_hide(lastItemVisibleSeparator); 83} 84 85void WebContextMenuProxyGtk::append(ContextMenuItem& menuItem) 86{ 87 unsigned long signalHandlerId; 88 GtkAction* action = menuItem.gtkAction(); 89 if (action) { 90 switch (menuItem.type()) { 91 case ActionType: 92 case CheckableActionType: 93 g_object_set_data(G_OBJECT(action), gContextMenuActionId, GINT_TO_POINTER(menuItem.action())); 94 signalHandlerId = g_signal_connect(action, "activate", G_CALLBACK(contextMenuItemActivatedCallback), m_page); 95 m_signalHandlers.set(signalHandlerId, action); 96 // Fall through. 97 case SubmenuType: 98 signalHandlerId = g_signal_connect(action, "notify::visible", G_CALLBACK(contextMenuItemVisibilityChanged), this); 99 m_signalHandlers.set(signalHandlerId, action); 100 break; 101 case SeparatorType: 102 break; 103 } 104 } 105 106 m_menu.appendItem(menuItem); 107} 108 109// Populate the context menu ensuring that: 110// - There aren't separators next to each other. 111// - There aren't separators at the beginning of the menu. 112// - There aren't separators at the end of the menu. 113void WebContextMenuProxyGtk::populate(Vector<ContextMenuItem>& items) 114{ 115 bool previousIsSeparator = false; 116 bool isEmpty = true; 117 for (size_t i = 0; i < items.size(); i++) { 118 ContextMenuItem& menuItem = items.at(i); 119 if (menuItem.type() == SeparatorType) { 120 previousIsSeparator = true; 121 continue; 122 } 123 124 if (previousIsSeparator && !isEmpty) 125 append(items.at(i - 1)); 126 previousIsSeparator = false; 127 128 append(menuItem); 129 isEmpty = false; 130 } 131} 132 133void WebContextMenuProxyGtk::populate(const Vector<WebContextMenuItemData>& items) 134{ 135 for (size_t i = 0; i < items.size(); i++) { 136 ContextMenuItem menuitem = items.at(i).core(); 137 append(menuitem); 138 } 139} 140 141void WebContextMenuProxyGtk::showContextMenu(const WebCore::IntPoint& position, const Vector<WebContextMenuItemData>& items, const ContextMenuContextData&) 142{ 143 if (!items.isEmpty()) 144 populate(items); 145 146 if (!m_menu.itemCount()) 147 return; 148 149 m_popupPosition = convertWidgetPointToScreenPoint(m_webView, position); 150 151 // Display menu initiated by right click (mouse button pressed = 3). 152 NativeWebMouseEvent* mouseEvent = m_page->currentlyProcessedMouseDownEvent(); 153 const GdkEvent* event = mouseEvent ? mouseEvent->nativeEvent() : 0; 154 gtk_menu_attach_to_widget(m_menu.platformDescription(), GTK_WIDGET(m_webView), 0); 155 gtk_menu_popup(m_menu.platformDescription(), 0, 0, reinterpret_cast<GtkMenuPositionFunc>(menuPositionFunction), this, 156 event ? event->button.button : 3, event ? event->button.time : GDK_CURRENT_TIME); 157} 158 159void WebContextMenuProxyGtk::hideContextMenu() 160{ 161 gtk_menu_popdown(m_menu.platformDescription()); 162} 163 164WebContextMenuProxyGtk::WebContextMenuProxyGtk(GtkWidget* webView, WebPageProxy* page) 165 : m_webView(webView) 166 , m_page(page) 167{ 168 webkitWebViewBaseSetActiveContextMenuProxy(WEBKIT_WEB_VIEW_BASE(m_webView), this); 169} 170 171WebContextMenuProxyGtk::~WebContextMenuProxyGtk() 172{ 173 for (auto iter = m_signalHandlers.begin(); iter != m_signalHandlers.end(); ++iter) 174 g_signal_handler_disconnect(iter->value, iter->key); 175 176 webkitWebViewBaseSetActiveContextMenuProxy(WEBKIT_WEB_VIEW_BASE(m_webView), 0); 177} 178 179void WebContextMenuProxyGtk::menuPositionFunction(GtkMenu* menu, gint* x, gint* y, gboolean* pushIn, WebContextMenuProxyGtk* popupMenu) 180{ 181 GtkRequisition menuSize; 182 gtk_widget_get_preferred_size(GTK_WIDGET(menu), &menuSize, 0); 183 184 GdkScreen* screen = gtk_widget_get_screen(popupMenu->m_webView); 185 *x = popupMenu->m_popupPosition.x(); 186 if ((*x + menuSize.width) >= gdk_screen_get_width(screen)) 187 *x -= menuSize.width; 188 189 *y = popupMenu->m_popupPosition.y(); 190 if ((*y + menuSize.height) >= gdk_screen_get_height(screen)) 191 *y -= menuSize.height; 192 193 *pushIn = FALSE; 194} 195 196} // namespace WebKit 197#endif // ENABLE(CONTEXT_MENUS) 198