1/* 2 * This file is part of the popup menu implementation for <select> elements in WebCore. 3 * 4 * Copyright (C) 2008 Apple Computer, Inc. 5 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 * 22 */ 23 24#include "config.h" 25#include "PopupMenuWx.h" 26 27#include "Frame.h" 28#include "FrameView.h" 29#include "PopupMenuClient.h" 30#include "PlatformString.h" 31 32#include <wx/defs.h> 33#if __WXMSW__ 34#include <wx/msw/winundef.h> 35#endif 36#include <wx/event.h> 37#include <wx/menu.h> 38 39static int s_menuStartId = wxNewId(); 40 41namespace WebCore { 42 43class PopupMenuEventHandler : public wxEvtHandler 44{ 45public: 46 PopupMenuEventHandler(PopupMenuClient* client) : 47 m_client(client) 48 {} 49 50 void OnMenuItemSelected(wxCommandEvent& event) 51 { 52 if (m_client) { 53 m_client->valueChanged(event.GetId() - s_menuStartId); 54 m_client->popupDidHide(); 55 } 56 // TODO: Do we need to call Disconnect here? Do we have a ref to the native window still? 57 } 58 59private: 60 PopupMenuClient* m_client; 61 62}; 63 64PopupMenuWx::PopupMenuWx(PopupMenuClient* client) 65 : m_popupClient(client) 66 , m_menu(0) 67{ 68 PopupMenuEventHandler m_popupHandler(client); 69} 70 71PopupMenuWx::~PopupMenuWx() 72{ 73 delete m_menu; 74} 75 76void PopupMenuWx::disconnectClient() 77{ 78 m_popupClient = 0; 79} 80 81void PopupMenuWx::show(const IntRect& r, FrameView* v, int index) 82{ 83 // just delete and recreate 84 delete m_menu; 85 ASSERT(client()); 86 87 wxWindow* nativeWin = v->platformWidget(); 88 89 if (nativeWin) { 90 // construct the menu 91 m_menu = new wxMenu(); 92 93 int size = client()->listSize(); 94 for (int i = 0; i < size; i++) { 95 int id = s_menuStartId + i; 96 97 if (client()->itemIsSeparator(i)) { 98 m_menu->AppendSeparator(); 99 } 100 else { 101 // FIXME: appending a menu item with an empty label asserts in 102 // wx. This needs to be fixed at wx level so that we can have 103 // the concept of "no selection" in choice boxes, etc. 104 if (!client()->itemText(i).isEmpty()) 105 m_menu->Append(s_menuStartId + i, client()->itemText(i)); 106 } 107 } 108 nativeWin->Connect(s_menuStartId, s_menuStartId + (size-1), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(PopupMenuEventHandler::OnMenuItemSelected), 0, m_popupHandler); 109 nativeWin->PopupMenu(m_menu, r.x() - v->scrollX(), r.y() - v->scrollY()); 110 nativeWin->Disconnect(s_menuStartId, s_menuStartId + (size-1), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(PopupMenuEventHandler::OnMenuItemSelected), 0, m_popupHandler); 111 } 112} 113 114void PopupMenuWx::hide() 115{ 116 // we don't need to do anything here, the native control only exists during the time 117 // show is called 118} 119 120void PopupMenuWx::updateFromElement() 121{ 122 client()->setTextFromItem(m_popupClient->selectedIndex()); 123} 124 125} 126