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