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
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/EventLoop.h>
#include <LibGUI/Desktop.h>
#include <LibGUI/Dialog.h>
#include <LibGUI/Event.h>
#include <LibGfx/Palette.h>
namespace GUI {
Dialog::Dialog(Window* parent_window, ScreenPosition screen_position)
: Window(parent_window)
, m_screen_position(screen_position)
{
set_window_mode(WindowMode::Blocking);
}
Dialog::ExecResult Dialog::exec()
{
VERIFY(!m_event_loop);
m_event_loop = make<Core::EventLoop>();
auto desktop_rect = Desktop::the().rect();
auto window_rect = rect();
auto top_align = [](Gfx::Rect<int>& rect) { rect.set_y(32); };
auto bottom_align = [this, desktop_rect](Gfx::Rect<int>& rect) { rect.set_y(desktop_rect.height() - Desktop::the().taskbar_height() - height() - 12); };
auto left_align = [](Gfx::Rect<int>& rect) { rect.set_x(12); };
auto right_align = [this, desktop_rect](Gfx::Rect<int>& rect) { rect.set_x(desktop_rect.width() - width() - 12); };
switch (m_screen_position) {
case ScreenPosition::CenterWithinParent:
if (parent() && is<Window>(parent())) {
auto& parent_window = *static_cast<Window*>(parent());
if (parent_window.is_visible()) {
// Check the dialog's position against the Desktop's rect and reposition it to be entirely visible.
// If the dialog is larger than the desktop's rect just center it.
window_rect.center_within(parent_window.rect());
if (window_rect.size().width() < desktop_rect.size().width() && window_rect.size().height() < desktop_rect.size().height()) {
auto taskbar_top_y = desktop_rect.bottom() - Desktop::the().taskbar_height();
auto palette = GUI::Application::the()->palette();
auto border_thickness = palette.window_border_thickness();
auto top_border_title_thickness = border_thickness + palette.window_title_height();
if (window_rect.top() < top_border_title_thickness) {
window_rect.set_y(top_border_title_thickness);
}
if (window_rect.right() + border_thickness > desktop_rect.right()) {
window_rect.translate_by((window_rect.right() + border_thickness - desktop_rect.right()) * -1, 0);
}
if (window_rect.bottom() + border_thickness > taskbar_top_y) {
window_rect.translate_by(0, (window_rect.bottom() + border_thickness - taskbar_top_y) * -1);
}
if (window_rect.left() - border_thickness < 0) {
window_rect.set_x(0 + border_thickness);
}
}
break;
}
}
[[fallthrough]]; // Fall back to `Center` if parent window is invalid or not visible
case ScreenPosition::Center:
window_rect.center_within(desktop_rect);
break;
case ScreenPosition::CenterLeft:
left_align(window_rect);
window_rect.center_vertically_within(desktop_rect);
break;
case ScreenPosition::CenterRight:
right_align(window_rect);
window_rect.center_vertically_within(desktop_rect);
break;
case ScreenPosition::TopLeft:
left_align(window_rect);
top_align(window_rect);
break;
case ScreenPosition::TopCenter:
window_rect.center_horizontally_within(desktop_rect);
top_align(window_rect);
break;
case ScreenPosition::TopRight:
right_align(window_rect);
top_align(window_rect);
break;
case ScreenPosition::BottomLeft:
left_align(window_rect);
bottom_align(window_rect);
break;
case ScreenPosition::BottomCenter:
window_rect.center_horizontally_within(desktop_rect);
bottom_align(window_rect);
break;
case ScreenPosition::BottomRight:
right_align(window_rect);
bottom_align(window_rect);
break;
}
set_rect(window_rect);
show();
auto result = m_event_loop->exec();
m_event_loop = nullptr;
dbgln("{}: Event loop returned with result {}", *this, result);
remove_from_parent();
return static_cast<ExecResult>(result);
}
void Dialog::done(ExecResult result)
{
Window::close();
if (!m_event_loop)
return;
m_result = result;
on_done(m_result);
dbgln("{}: Quit event loop with result {}", *this, to_underlying(result));
m_event_loop->quit(to_underlying(result));
}
void Dialog::event(Core::Event& event)
{
if (event.type() == Event::KeyDown) {
auto& key_event = static_cast<KeyEvent&>(event);
if (key_event.key() == KeyCode::Key_Escape) {
done(ExecResult::Cancel);
event.accept();
return;
}
}
Window::event(event);
}
void Dialog::close()
{
done(ExecResult::Cancel);
}
}
|
