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	These options were created 2 years ago but the only use cases thus far are for Center and CenterWithinParent, so let's chuck the rest for now. Adds a new DoNotPosition option to opt out of automatic centering and a ScreenPosition setter and getter for configuration before exec()
		
			
				
	
	
		
			82 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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 <LibCore/EventLoop.h>
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#include <LibGUI/Dialog.h>
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#include <LibGUI/Event.h>
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#include <LibGfx/Palette.h>
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namespace GUI {
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Dialog::Dialog(Window* parent_window, ScreenPosition screen_position)
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    : Window(parent_window)
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    , m_screen_position(screen_position)
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{
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    set_window_mode(WindowMode::Blocking);
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}
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Dialog::ExecResult Dialog::exec()
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{
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    VERIFY(!m_event_loop);
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    m_event_loop = make<Core::EventLoop>();
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    switch (m_screen_position) {
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    case ScreenPosition::DoNotPosition:
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        break;
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    case ScreenPosition::CenterWithinParent:
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        if (auto parent = find_parent_window(); parent && parent->is_visible()) {
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            center_within(*parent);
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            constrain_to_desktop();
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            break;
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        }
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        [[fallthrough]];
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    case ScreenPosition::Center:
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        center_on_screen();
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        break;
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    }
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    show();
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    auto result = m_event_loop->exec();
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    m_event_loop = nullptr;
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    dbgln("{}: Event loop returned with result {}", *this, result);
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    remove_from_parent();
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    return static_cast<ExecResult>(result);
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}
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void Dialog::done(ExecResult result)
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{
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    Window::close();
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    if (!m_event_loop)
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        return;
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    m_result = result;
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    on_done(m_result);
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    dbgln("{}: Quit event loop with result {}", *this, to_underlying(result));
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    m_event_loop->quit(to_underlying(result));
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}
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void Dialog::event(Core::Event& event)
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{
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    if (event.type() == Event::KeyDown) {
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        auto& key_event = static_cast<KeyEvent&>(event);
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        if (key_event.key() == KeyCode::Key_Escape) {
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            done(ExecResult::Cancel);
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            event.accept();
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            return;
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        }
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    }
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    Window::event(event);
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}
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void Dialog::close()
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{
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    done(ExecResult::Cancel);
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}
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}
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