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* action, GParamSpec*, WebContextMenuProxyGtk* contextMenuProxy) 57{ 58 GtkMenu* menu = contextMenuProxy->gtkMenu(); 59 if (!menu) 60 return; 61 62 GOwnPtr<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 GtkAction* action = menuItem.gtkAction(); 88 if (action) { 89 switch (menuItem.type()) { 90 case ActionType: 91 case CheckableActionType: 92 g_object_set_data(G_OBJECT(action), gContextMenuActionId, GINT_TO_POINTER(menuItem.action())); 93 g_signal_connect(action, "activate", G_CALLBACK(contextMenuItemActivatedCallback), m_page); 94 // Fall through. 95 case SubmenuType: 96 g_signal_connect(action, "notify::visible", G_CALLBACK(contextMenuItemVisibilityChanged), this); 97 break; 98 case SeparatorType: 99 break; 100 } 101 } 102 103 m_menu.appendItem(menuItem); 104} 105 106// Populate the context menu ensuring that: 107// - There aren't separators next to each other. 108// - There aren't separators at the beginning of the menu. 109// - There aren't separators at the end of the menu. 110void WebContextMenuProxyGtk::populate(Vector<ContextMenuItem>& items) 111{ 112 bool previousIsSeparator = false; 113 bool isEmpty = true; 114 for (size_t i = 0; i < items.size(); i++) { 115 ContextMenuItem& menuItem = items.at(i); 116 if (menuItem.type() == SeparatorType) { 117 previousIsSeparator = true; 118 continue; 119 } 120 121 if (previousIsSeparator && !isEmpty) 122 append(items.at(i - 1)); 123 previousIsSeparator = false; 124 125 append(menuItem); 126 isEmpty = false; 127 } 128} 129 130void WebContextMenuProxyGtk::populate(const Vector<WebContextMenuItemData>& items) 131{ 132 for (size_t i = 0; i < items.size(); i++) { 133 ContextMenuItem menuitem = items.at(i).core(); 134 append(menuitem); 135 } 136} 137 138void WebContextMenuProxyGtk::showContextMenu(const WebCore::IntPoint& position, const Vector<WebContextMenuItemData>& items) 139{ 140 if (!items.isEmpty()) 141 populate(items); 142 143 if (!m_menu.itemCount()) 144 return; 145 146 m_popupPosition = convertWidgetPointToScreenPoint(m_webView, position); 147 148 // Display menu initiated by right click (mouse button pressed = 3). 149 NativeWebMouseEvent* mouseEvent = m_page->currentlyProcessedMouseDownEvent(); 150 const GdkEvent* event = mouseEvent ? mouseEvent->nativeEvent() : 0; 151 gtk_menu_attach_to_widget(m_menu.platformDescription(), GTK_WIDGET(m_webView), 0); 152 gtk_menu_popup(m_menu.platformDescription(), 0, 0, reinterpret_cast<GtkMenuPositionFunc>(menuPositionFunction), this, 153 event ? event->button.button : 3, event ? event->button.time : GDK_CURRENT_TIME); 154} 155 156void WebContextMenuProxyGtk::hideContextMenu() 157{ 158 gtk_menu_popdown(m_menu.platformDescription()); 159} 160 161WebContextMenuProxyGtk::WebContextMenuProxyGtk(GtkWidget* webView, WebPageProxy* page) 162 : m_webView(webView) 163 , m_page(page) 164{ 165 webkitWebViewBaseSetActiveContextMenuProxy(WEBKIT_WEB_VIEW_BASE(m_webView), this); 166} 167 168WebContextMenuProxyGtk::~WebContextMenuProxyGtk() 169{ 170 webkitWebViewBaseSetActiveContextMenuProxy(WEBKIT_WEB_VIEW_BASE(m_webView), 0); 171} 172 173void WebContextMenuProxyGtk::menuPositionFunction(GtkMenu* menu, gint* x, gint* y, gboolean* pushIn, WebContextMenuProxyGtk* popupMenu) 174{ 175 GtkRequisition menuSize; 176 gtk_widget_get_preferred_size(GTK_WIDGET(menu), &menuSize, 0); 177 178 GdkScreen* screen = gtk_widget_get_screen(popupMenu->m_webView); 179 *x = popupMenu->m_popupPosition.x(); 180 if ((*x + menuSize.width) >= gdk_screen_get_width(screen)) 181 *x -= menuSize.width; 182 183 *y = popupMenu->m_popupPosition.y(); 184 if ((*y + menuSize.height) >= gdk_screen_get_height(screen)) 185 *y -= menuSize.height; 186 187 *pushIn = FALSE; 188} 189 190} // namespace WebKit 191#endif // ENABLE(CONTEXT_MENUS) 192