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LibGUI: Add a GUI::Tray widget for the FilePicker common locations

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The FilePicker has implemented its common locations tray as a composite
widget built from a GUI::Frame with a bunch of GUI::Button inside it.
The problem with that is that it creates a long and annoying chain of
keyboard-focusable widgets.

This patch adds GUI::Tray, which is a dedicated single widget that
implements the same UI element, but without child widgets.
This commit is contained in:
Andreas Kling 2021-10-21 19:28:46 +02:00
parent 25475f7003
commit ae2579d8b5
3 changed files with 271 additions and 0 deletions
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56
Userland/Libraries/LibGUI/Tray.h Normal file
View file

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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGUI/Frame.h>
#include <LibGfx/Bitmap.h>
namespace GUI {
class Tray : public GUI::Frame {
C_OBJECT(Tray);
public:
virtual ~Tray() override;
size_t add_item(String text, RefPtr<Gfx::Bitmap>, String custom_data);
void set_item_checked(size_t index, bool);
Function<void(String const&)> on_item_activation;
protected:
virtual void paint_event(GUI::PaintEvent&) override;
virtual void mousemove_event(GUI::MouseEvent&) override;
virtual void mousedown_event(GUI::MouseEvent&) override;
virtual void mouseup_event(GUI::MouseEvent&) override;
virtual void leave_event(Core::Event&) override;
virtual void focusin_event(GUI::FocusEvent&) override;
virtual void focusout_event(GUI::FocusEvent&) override;
virtual void keydown_event(GUI::KeyEvent&) override;
private:
Tray();
struct Item {
String text;
RefPtr<Gfx::Bitmap> bitmap;
String custom_data;
size_t index { 0 };
Gfx::IntRect rect(Tray const&) const;
};
Item* item_at(Gfx::IntPoint const&);
Vector<Item> m_items;
Optional<size_t> m_pressed_item_index;
Optional<size_t> m_hovered_item_index;
Optional<size_t> m_checked_item_index;
};
}