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