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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/String.h>
#include <Kernel/KeyCode.h>
#include <LibCore/Event.h>
#include <LibGfx/Rect.h>
#include <WindowServer/Cursor.h>
#include <WindowServer/WindowType.h>
namespace WindowServer {
class Event : public Core::Event {
public:
enum Type {
Invalid = 3000,
MouseMove,
MouseDown,
MouseDoubleClick,
MouseUp,
MouseWheel,
WindowEntered,
WindowLeft,
KeyDown,
KeyUp,
WindowActivated,
WindowDeactivated,
WindowCloseRequest,
WindowResized,
};
Event() {}
explicit Event(Type type)
: Core::Event(type)
{
}
virtual ~Event() {}
bool is_mouse_event() const { return type() == MouseMove || type() == MouseDown || type() == MouseDoubleClick || type() == MouseUp || type() == MouseWheel; }
bool is_key_event() const { return type() == KeyUp || type() == KeyDown; }
};
enum class MouseButton : u8 {
None = 0,
Left = 1,
Right = 2,
Middle = 4,
};
class KeyEvent final : public Event {
public:
KeyEvent(Type type, int key, char character, u8 modifiers)
: Event(type)
, m_key(key)
, m_character(character)
, m_modifiers(modifiers)
{
}
int key() const { return m_key; }
bool ctrl() const { return m_modifiers & Mod_Ctrl; }
bool alt() const { return m_modifiers & Mod_Alt; }
bool shift() const { return m_modifiers & Mod_Shift; }
bool logo() const { return m_modifiers & Mod_Logo; }
u8 modifiers() const { return m_modifiers; }
char character() const { return m_character; }
private:
friend class EventLoop;
friend class Screen;
int m_key { 0 };
char m_character { 0 };
u8 m_modifiers { 0 };
};
class MouseEvent final : public Event {
public:
MouseEvent(Type type, const Gfx::Point& position, unsigned buttons, MouseButton button, unsigned modifiers, int wheel_delta = 0)
: Event(type)
, m_position(position)
, m_buttons(buttons)
, m_button(button)
, m_modifiers(modifiers)
, m_wheel_delta(wheel_delta)
{
}
Gfx::Point position() const { return m_position; }
int x() const { return m_position.x(); }
int y() const { return m_position.y(); }
MouseButton button() const { return m_button; }
unsigned buttons() const { return m_buttons; }
unsigned modifiers() const { return m_modifiers; }
int wheel_delta() const { return m_wheel_delta; }
bool is_drag() const { return m_drag; }
const String& drag_data_type() const { return m_drag_data_type; }
void set_drag(bool b) { m_drag = b; }
void set_drag_data_type(const String& drag_data_type) { m_drag_data_type = drag_data_type; }
MouseEvent translated(const Gfx::Point& delta) const { return MouseEvent((Type)type(), m_position.translated(delta), m_buttons, m_button, m_modifiers, m_wheel_delta); }
private:
Gfx::Point m_position;
unsigned m_buttons { 0 };
MouseButton m_button { MouseButton::None };
unsigned m_modifiers { 0 };
int m_wheel_delta { 0 };
bool m_drag { false };
String m_drag_data_type;
};
class ResizeEvent final : public Event {
public:
ResizeEvent(const Gfx::Rect& old_rect, const Gfx::Rect& rect)
: Event(Event::WindowResized)
, m_old_rect(old_rect)
, m_rect(rect)
{
}
Gfx::Rect old_rect() const { return m_old_rect; }
Gfx::Rect rect() const { return m_rect; }
private:
Gfx::Rect m_old_rect;
Gfx::Rect m_rect;
};
}
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