1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/HashMap.h>
#include <AK/SharedBuffer.h>
#include <LibGUI/Action.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Menu.h>
#include <LibGUI/MenuItem.h>
#include <LibGUI/WindowServerConnection.h>
#include <LibGfx/Bitmap.h>
//#define MENU_DEBUG
namespace GUI {
static HashMap<int, Menu*>& all_menus()
{
static HashMap<int, Menu*>* map;
if (!map)
map = new HashMap<int, Menu*>();
return *map;
}
Menu* Menu::from_menu_id(int menu_id)
{
auto it = all_menus().find(menu_id);
if (it == all_menus().end())
return nullptr;
return (*it).value;
}
Menu::Menu(const StringView& name)
: m_name(name)
{
}
Menu::~Menu()
{
unrealize_menu();
}
void Menu::set_icon(const Gfx::Bitmap* icon)
{
m_icon = icon;
}
void Menu::add_action(NonnullRefPtr<Action> action)
{
m_items.append(make<MenuItem>(m_menu_id, move(action)));
#ifdef GMENU_DEBUG
dbgln("GUI::Menu::add_action(): MenuItem Menu ID: {}", m_menu_id);
#endif
}
Menu& Menu::add_submenu(const String& name)
{
auto submenu = Menu::construct(name);
m_items.append(make<MenuItem>(m_menu_id, submenu));
return submenu;
}
void Menu::add_separator()
{
m_items.append(make<MenuItem>(m_menu_id, MenuItem::Type::Separator));
}
void Menu::realize_if_needed(const RefPtr<Action>& default_action)
{
if (m_menu_id == -1 || m_last_default_action.ptr() != default_action)
realize_menu(default_action);
}
void Menu::popup(const Gfx::IntPoint& screen_position, const RefPtr<Action>& default_action)
{
realize_if_needed(default_action);
WindowServerConnection::the().post_message(Messages::WindowServer::PopupMenu(m_menu_id, screen_position));
}
void Menu::dismiss()
{
if (m_menu_id == -1)
return;
WindowServerConnection::the().post_message(Messages::WindowServer::DismissMenu(m_menu_id));
}
template<typename IconContainerType>
static int ensure_realized_icon(IconContainerType& container)
{
int icon_buffer_id = -1;
if (container.icon()) {
ASSERT(container.icon()->format() == Gfx::BitmapFormat::RGBA32);
ASSERT(container.icon()->size() == Gfx::IntSize(16, 16));
if (container.icon()->shbuf_id() == -1) {
auto shared_buffer = SharedBuffer::create_with_size(container.icon()->size_in_bytes());
ASSERT(shared_buffer);
auto shared_icon = Gfx::Bitmap::create_with_shared_buffer(Gfx::BitmapFormat::RGBA32, *shared_buffer, container.icon()->size());
memcpy(shared_buffer->template data<u8>(), container.icon()->scanline_u8(0), container.icon()->size_in_bytes());
shared_buffer->seal();
shared_buffer->share_with(WindowServerConnection::the().server_pid());
container.set_icon(shared_icon);
}
icon_buffer_id = container.icon()->shbuf_id();
}
return icon_buffer_id;
}
int Menu::realize_menu(RefPtr<Action> default_action)
{
unrealize_menu();
m_menu_id = WindowServerConnection::the().send_sync<Messages::WindowServer::CreateMenu>(m_name)->menu_id();
#ifdef MENU_DEBUG
dbgln("GUI::Menu::realize_menu(): New menu ID: {}", m_menu_id);
#endif
ASSERT(m_menu_id > 0);
for (size_t i = 0; i < m_items.size(); ++i) {
auto& item = m_items[i];
item.set_menu_id({}, m_menu_id);
item.set_identifier({}, i);
if (item.type() == MenuItem::Type::Separator) {
WindowServerConnection::the().send_sync<Messages::WindowServer::AddMenuSeparator>(m_menu_id);
continue;
}
if (item.type() == MenuItem::Type::Submenu) {
auto& submenu = *item.submenu();
submenu.realize_if_needed(default_action);
int icon_buffer_id = ensure_realized_icon(submenu);
WindowServerConnection::the().send_sync<Messages::WindowServer::AddMenuItem>(m_menu_id, i, submenu.menu_id(), submenu.name(), true, false, false, false, "", icon_buffer_id, false);
continue;
}
if (item.type() == MenuItem::Type::Action) {
auto& action = *item.action();
int icon_buffer_id = ensure_realized_icon(action);
auto shortcut_text = action.shortcut().is_valid() ? action.shortcut().to_string() : String();
bool exclusive = action.group() && action.group()->is_exclusive() && action.is_checkable();
bool is_default = (default_action.ptr() == &action);
WindowServerConnection::the().send_sync<Messages::WindowServer::AddMenuItem>(m_menu_id, i, -1, action.text(), action.is_enabled(), action.is_checkable(), action.is_checkable() ? action.is_checked() : false, is_default, shortcut_text, icon_buffer_id, exclusive);
}
}
all_menus().set(m_menu_id, this);
m_last_default_action = default_action;
return m_menu_id;
}
void Menu::unrealize_menu()
{
if (m_menu_id == -1)
return;
all_menus().remove(m_menu_id);
WindowServerConnection::the().send_sync<Messages::WindowServer::DestroyMenu>(m_menu_id);
m_menu_id = -1;
}
void Menu::realize_menu_if_needed()
{
if (menu_id() == -1)
realize_menu();
}
Action* Menu::action_at(size_t index)
{
if (index >= m_items.size())
return nullptr;
return m_items[index].action();
}
}
|
