jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <LibCore/EventLoop.h>
28#include <LibGUI/Desktop.h>
29#include <LibGUI/Dialog.h>
30#include <LibGUI/Event.h>
31
32namespace GUI {
33
34Dialog::Dialog(Core::Object* parent)
35 : Window(parent)
36{
37 set_modal(true);
38}
39
40Dialog::~Dialog()
41{
42}
43
44int Dialog::exec()
45{
46 ASSERT(!m_event_loop);
47 m_event_loop = make<Core::EventLoop>();
48 auto new_rect = rect();
49 if (parent() && parent()->is_window()) {
50 auto& parent_window = *static_cast<Window*>(parent());
51 new_rect.center_within(parent_window.rect());
52 } else {
53 new_rect.center_within(Desktop::the().rect());
54 }
55 set_rect(new_rect);
56 show();
57 auto result = m_event_loop->exec();
58 m_event_loop = nullptr;
59 dbgprintf("%s: event loop returned with result %d\n", class_name(), result);
60 remove_from_parent();
61 return result;
62}
63
64void Dialog::done(int result)
65{
66 if (!m_event_loop)
67 return;
68 m_result = result;
69 dbgprintf("%s: quit event loop with result %d\n", class_name(), result);
70 m_event_loop->quit(result);
71}
72
73void Dialog::event(Core::Event& event)
74{
75 if (event.type() == Event::KeyUp) {
76 auto& key_event = static_cast<KeyEvent&>(event);
77 if (key_event.key() == KeyCode::Key_Escape) {
78 done(ExecCancel);
79 event.accept();
80 return;
81 }
82 }
83
84 Window::event(event);
85}
86
87void Dialog::close()
88{
89 Window::close();
90 m_event_loop->quit(ExecCancel);
91}
92
93}