ladybird/Userland/Libraries/LibGUI/LinkLabel.cpp

139 lines
3.3 KiB
C++

/*
* Copyright (c) 2020, Alex McGrath <amk@amk.ie>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/Action.h>
#include <LibGUI/Clipboard.h>
#include <LibGUI/Event.h>
#include <LibGUI/LinkLabel.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Painter.h>
#include <LibGUI/Window.h>
#include <LibGfx/Font/Font.h>
#include <LibGfx/Palette.h>
REGISTER_WIDGET(GUI, LinkLabel)
namespace GUI {
ErrorOr<NonnullRefPtr<LinkLabel>> LinkLabel::try_create(String text)
{
auto label = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) LinkLabel(move(text))));
TRY(label->create_actions());
TRY(label->create_menus());
return label;
}
LinkLabel::LinkLabel(String text)
: Label(move(text))
{
set_foreground_role(Gfx::ColorRole::Link);
set_focus_policy(FocusPolicy::TabFocus);
}
ErrorOr<void> LinkLabel::create_actions()
{
m_open_action = GUI::Action::create(
"Show in File Manager", TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-file-manager.png"sv)), [&](const GUI::Action&) {
if (on_click)
on_click();
},
this);
m_copy_action = CommonActions::make_copy_action([this](auto&) { Clipboard::the().set_plain_text(text()); }, this);
return {};
}
ErrorOr<void> LinkLabel::create_menus()
{
m_context_menu = TRY(Menu::try_create());
m_context_menu->add_action(*m_open_action);
m_context_menu->add_separator();
m_context_menu->add_action(*m_copy_action);
return {};
}
void LinkLabel::set_hovered(bool hover)
{
if (hover == m_hovered)
return;
m_hovered = hover;
set_override_cursor(hover ? Gfx::StandardCursor::Hand : Gfx::StandardCursor::None);
update();
}
void LinkLabel::mousemove_event(MouseEvent& event)
{
constexpr int extra_target_width = 3;
set_hovered(event.position().x() <= font().width(text()) + extra_target_width);
}
void LinkLabel::mousedown_event(MouseEvent& event)
{
if (event.button() != MouseButton::Primary)
return;
Label::mousedown_event(event);
if (m_hovered && on_click) {
on_click();
}
}
void LinkLabel::keydown_event(KeyEvent& event)
{
Label::keydown_event(event);
if (event.key() == KeyCode::Key_Return || event.key() == KeyCode::Key_Space) {
if (on_click)
on_click();
}
}
void LinkLabel::paint_event(PaintEvent& event)
{
Label::paint_event(event);
GUI::Painter painter(*this);
if (m_hovered)
painter.draw_line({ 0, rect().bottom() - 1 }, { font().width_rounded_up(text()), rect().bottom() - 1 }, palette().link());
if (is_focused())
painter.draw_focus_rect(text_rect(), palette().focus_outline());
}
void LinkLabel::leave_event(Core::Event& event)
{
Label::leave_event(event);
set_hovered(false);
}
void LinkLabel::did_change_text()
{
Label::did_change_text();
update_tooltip_if_needed();
}
void LinkLabel::update_tooltip_if_needed()
{
if (width() < font().width(text())) {
set_tooltip_deprecated(text().to_deprecated_string());
} else {
set_tooltip_deprecated({});
}
}
void LinkLabel::resize_event(ResizeEvent& event)
{
Label::resize_event(event);
update_tooltip_if_needed();
}
void LinkLabel::context_menu_event(ContextMenuEvent& event)
{
m_context_menu->popup(event.screen_position(), m_open_action);
}
}