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
39 static int s_menuStartId = wxNewId();
40
41 namespace WebCore {
42
43 class PopupMenuEventHandler : public wxEvtHandler
44 {
45 public:
PopupMenuEventHandler(PopupMenuClient * client)46 PopupMenuEventHandler(PopupMenuClient* client) :
47 m_client(client)
48 {}
49
OnMenuItemSelected(wxCommandEvent & event)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
59 private:
60 PopupMenuClient* m_client;
61
62 };
63
PopupMenuWx(PopupMenuClient * client)64 PopupMenuWx::PopupMenuWx(PopupMenuClient* client)
65 : m_popupClient(client)
66 , m_menu(0)
67 {
68 PopupMenuEventHandler m_popupHandler(client);
69 }
70
~PopupMenuWx()71 PopupMenuWx::~PopupMenuWx()
72 {
73 delete m_menu;
74 }
75
disconnectClient()76 void PopupMenuWx::disconnectClient()
77 {
78 m_popupClient = 0;
79 }
80
show(const IntRect & r,FrameView * v,int index)81 void 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
hide()114 void 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
updateFromElement()120 void PopupMenuWx::updateFromElement()
121 {
122 client()->setTextFromItem(m_popupClient->selectedIndex());
123 }
124
125 }
126