jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include "NotificationWindow.h"
8#include <AK/HashMap.h>
9#include <AK/Optional.h>
10#include <AK/Vector.h>
11#include <LibGUI/BoxLayout.h>
12#include <LibGUI/Desktop.h>
13#include <LibGUI/Label.h>
14#include <LibGUI/Widget.h>
15#include <LibGfx/Bitmap.h>
16#include <LibGfx/Font/FontDatabase.h>
17#include <LibGfx/ShareableBitmap.h>
18
19namespace NotificationServer {
20
21static HashMap<u32, RefPtr<NotificationWindow>> s_windows;
22
23static void update_notification_window_locations(Gfx::IntRect const& screen_rect)
24{
25 Optional<Gfx::IntRect> last_window_rect;
26 for (auto& window_entry : s_windows) {
27 auto& window = window_entry.value;
28 Gfx::IntPoint new_window_location;
29 if (last_window_rect.has_value())
30 new_window_location = last_window_rect.value().bottom_left().translated(0, 10);
31 else
32 new_window_location = screen_rect.top_right().translated(-window->rect().width() - 24, 7);
33 if (window->rect().location() != new_window_location) {
34 window->move_to(new_window_location);
35 window->set_original_rect(window->rect());
36 }
37 last_window_rect = window->rect();
38 }
39}
40
41NotificationWindow::NotificationWindow(i32 client_id, DeprecatedString const& text, DeprecatedString const& title, Gfx::ShareableBitmap const& icon)
42{
43 m_id = client_id;
44 s_windows.set(m_id, this);
45
46 set_window_type(GUI::WindowType::Notification);
47 set_resizable(false);
48 set_minimizable(false);
49
50 Optional<Gfx::IntRect> lowest_notification_rect_on_screen;
51 for (auto& window_entry : s_windows) {
52 auto& window = window_entry.value;
53 if (!lowest_notification_rect_on_screen.has_value()
54 || (window->m_original_rect.y() > lowest_notification_rect_on_screen.value().y()))
55 lowest_notification_rect_on_screen = window->m_original_rect;
56 }
57
58 Gfx::IntRect rect;
59 rect.set_width(220);
60 rect.set_height(40);
61 rect.set_location(GUI::Desktop::the().rect().top_right().translated(-rect.width() - 24, 7));
62
63 if (lowest_notification_rect_on_screen.has_value())
64 rect.set_location(lowest_notification_rect_on_screen.value().bottom_left().translated(0, 10));
65
66 set_rect(rect);
67
68 m_original_rect = rect;
69
70 auto widget = set_main_widget<GUI::Widget>().release_value_but_fixme_should_propagate_errors();
71
72 widget->set_fill_with_background_color(true);
73 widget->set_layout<GUI::HorizontalBoxLayout>(8, 6);
74
75 m_image = &widget->add<GUI::ImageWidget>();
76 m_image->set_visible(icon.is_valid());
77 if (icon.is_valid()) {
78 m_image->set_bitmap(icon.bitmap());
79 }
80
81 auto& left_container = widget->add<GUI::Widget>();
82 left_container.set_layout<GUI::VerticalBoxLayout>();
83
84 m_title_label = &left_container.add<GUI::Label>(title);
85 m_title_label->set_font(Gfx::FontDatabase::default_font().bold_variant());
86 m_title_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
87 m_text_label = &left_container.add<GUI::Label>(text);
88 m_text_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
89
90 // FIXME: There used to be code for setting the tooltip here, but since we
91 // expand the notification now we no longer set the tooltip. Should there be
92 // a limit to the lines shown in an expanded notification, at which point a
93 // tooltip should be set?
94
95 on_close = [this] {
96 s_windows.remove(m_id);
97 update_notification_window_locations(GUI::Desktop::the().rect());
98 };
99}
100
101RefPtr<NotificationWindow> NotificationWindow::get_window_by_id(i32 id)
102{
103 auto window = s_windows.get(id);
104 return window.value_or(nullptr);
105}
106
107void NotificationWindow::resize_to_fit_text()
108{
109 auto line_height = m_text_label->font().pixel_size_rounded_up();
110 auto total_height = m_text_label->text_calculated_preferred_height();
111
112 m_text_label->set_fixed_height(total_height);
113 set_height(40 - line_height + total_height);
114}
115
116void NotificationWindow::enter_event(Core::Event&)
117{
118 m_hovering = true;
119 resize_to_fit_text();
120 move_to_front();
121 update_notification_window_locations(GUI::Desktop::the().rect());
122}
123
124void NotificationWindow::leave_event(Core::Event&)
125{
126 m_hovering = false;
127 m_text_label->set_preferred_height(GUI::SpecialDimension::Grow);
128 set_height(40);
129 update_notification_window_locations(GUI::Desktop::the().rect());
130}
131
132void NotificationWindow::set_text(DeprecatedString const& value)
133{
134 m_text_label->set_text(value);
135 if (m_hovering)
136 resize_to_fit_text();
137}
138
139void NotificationWindow::set_title(DeprecatedString const& value)
140{
141 m_title_label->set_text(value);
142}
143
144void NotificationWindow::set_image(Gfx::ShareableBitmap const& image)
145{
146 m_image->set_visible(image.is_valid());
147 if (image.is_valid()) {
148 m_image->set_bitmap(image.bitmap());
149 }
150}
151
152void NotificationWindow::set_height(int height)
153{
154 auto rect = this->rect();
155 rect.set_height(height);
156 set_rect(rect);
157}
158
159void NotificationWindow::screen_rects_change_event(GUI::ScreenRectsChangeEvent& event)
160{
161 update_notification_window_locations(event.rects()[event.main_screen_index()]);
162}
163
164}