jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2020, Alex McGrath <amk@amk.ie>
3 * Copyright (c) 2022, the SerenityOS developers.
4 *
5 * SPDX-License-Identifier: BSD-2-Clause
6 */
7
8#include <LibGUI/Action.h>
9#include <LibGUI/Clipboard.h>
10#include <LibGUI/Event.h>
11#include <LibGUI/LinkLabel.h>
12#include <LibGUI/Menu.h>
13#include <LibGUI/Painter.h>
14#include <LibGUI/Window.h>
15#include <LibGfx/Font/Font.h>
16#include <LibGfx/Palette.h>
17
18REGISTER_WIDGET(GUI, LinkLabel)
19
20namespace GUI {
21
22LinkLabel::LinkLabel(DeprecatedString text)
23 : Label(move(text))
24{
25 set_foreground_role(Gfx::ColorRole::Link);
26 set_focus_policy(FocusPolicy::TabFocus);
27 setup_actions();
28}
29
30void LinkLabel::setup_actions()
31{
32 m_open_action = GUI::Action::create(
33 "Show in File Manager", Gfx::Bitmap::load_from_file("/res/icons/16x16/app-file-manager.png"sv).release_value_but_fixme_should_propagate_errors(), [&](const GUI::Action&) {
34 if (on_click)
35 on_click();
36 },
37 this);
38
39 m_copy_action = CommonActions::make_copy_action([this](auto&) { Clipboard::the().set_plain_text(text()); }, this);
40}
41
42void LinkLabel::set_hovered(bool hover)
43{
44 if (hover == m_hovered)
45 return;
46
47 m_hovered = hover;
48 set_override_cursor(hover ? Gfx::StandardCursor::Hand : Gfx::StandardCursor::None);
49 update();
50}
51
52void LinkLabel::mousemove_event(MouseEvent& event)
53{
54 constexpr int extra_target_width = 3;
55 set_hovered(event.position().x() <= font().width(text()) + extra_target_width);
56}
57
58void LinkLabel::mousedown_event(MouseEvent& event)
59{
60 if (event.button() != MouseButton::Primary)
61 return;
62
63 Label::mousedown_event(event);
64 if (m_hovered && on_click) {
65 on_click();
66 }
67}
68
69void LinkLabel::keydown_event(KeyEvent& event)
70{
71 Label::keydown_event(event);
72 if (event.key() == KeyCode::Key_Return || event.key() == KeyCode::Key_Space) {
73 if (on_click)
74 on_click();
75 }
76}
77
78void LinkLabel::paint_event(PaintEvent& event)
79{
80 Label::paint_event(event);
81 GUI::Painter painter(*this);
82
83 if (m_hovered)
84 painter.draw_line({ 0, rect().bottom() }, { static_cast<int>(ceilf(font().width(text()))), rect().bottom() }, palette().link());
85
86 if (is_focused())
87 painter.draw_focus_rect(text_rect(), palette().focus_outline());
88}
89
90void LinkLabel::leave_event(Core::Event& event)
91{
92 Label::leave_event(event);
93 set_hovered(false);
94}
95
96void LinkLabel::did_change_text()
97{
98 Label::did_change_text();
99 update_tooltip_if_needed();
100}
101
102void LinkLabel::update_tooltip_if_needed()
103{
104 if (width() < font().width(text())) {
105 set_tooltip(text());
106 } else {
107 set_tooltip({});
108 }
109}
110
111void LinkLabel::resize_event(ResizeEvent& event)
112{
113 Label::resize_event(event);
114 update_tooltip_if_needed();
115}
116
117void LinkLabel::context_menu_event(ContextMenuEvent& event)
118{
119 if (!m_context_menu) {
120 m_context_menu = Menu::construct();
121 m_context_menu->add_action(*m_open_action);
122 m_context_menu->add_separator();
123 m_context_menu->add_action(*m_copy_action);
124 }
125 m_context_menu->popup(event.screen_position(), m_open_action);
126}
127
128}