ladybird/Services/WindowServer/WindowManager.h
Andreas Kling 116cf92156 LibGfx: Rename Rect,Point,Size => IntRect,IntPoint,IntSize
This fits nicer with FloatRect,FloatPoint,FloatSize and gives a much
better visual clue about what type of metric is being used.
2020-06-10 10:59:04 +02:00

407 lines
16 KiB
C++

/*
* 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/HashMap.h>
#include <AK/HashTable.h>
#include <AK/InlineLinkedList.h>
#include <AK/WeakPtr.h>
#include <LibCore/ConfigFile.h>
#include <LibCore/ElapsedTimer.h>
#include <LibGfx/Color.h>
#include <LibGfx/DisjointRectSet.h>
#include <LibGfx/Painter.h>
#include <LibGfx/Palette.h>
#include <LibGfx/Rect.h>
#include <WindowServer/Cursor.h>
#include <WindowServer/Event.h>
#include <WindowServer/MenuBar.h>
#include <WindowServer/MenuManager.h>
#include <WindowServer/Window.h>
#include <WindowServer/WindowSwitcher.h>
#include <WindowServer/WindowType.h>
namespace WindowServer {
class Screen;
class MouseEvent;
class Window;
class ClientConnection;
class WindowSwitcher;
class Button;
enum class ResizeDirection {
None,
Left,
UpLeft,
Up,
UpRight,
Right,
DownRight,
Down,
DownLeft
};
class WindowManager : public Core::Object {
C_OBJECT(WindowManager)
friend class Compositor;
friend class WindowFrame;
friend class WindowSwitcher;
public:
static WindowManager& the();
explicit WindowManager(const Gfx::PaletteImpl&);
virtual ~WindowManager() override;
Palette palette() const { return Palette(*m_palette); }
RefPtr<Core::ConfigFile> config() const { return m_config; }
void reload_config(bool);
void add_window(Window&);
void remove_window(Window&);
void notify_title_changed(Window&);
void notify_rect_changed(Window&, const Gfx::IntRect& oldRect, const Gfx::IntRect& newRect);
void notify_minimization_state_changed(Window&);
void notify_opacity_changed(Window&);
void notify_occlusion_state_changed(Window&);
void notify_progress_changed(Window&);
void notify_client_changed_app_menubar(ClientConnection&);
Gfx::IntRect maximized_window_rect(const Window&) const;
const ClientConnection* dnd_client() const { return m_dnd_client.ptr(); }
const String& dnd_text() const { return m_dnd_text; }
const String& dnd_data_type() const { return m_dnd_data_type; }
const String& dnd_data() const { return m_dnd_data; }
const Gfx::Bitmap* dnd_bitmap() const { return m_dnd_bitmap; }
Gfx::IntRect dnd_rect() const;
void start_dnd_drag(ClientConnection&, const String& text, Gfx::Bitmap*, const String& data_type, const String& data);
void end_dnd_drag();
const Window* active_window() const { return m_active_window.ptr(); }
const ClientConnection* active_client() const;
bool active_window_is_modal() const { return m_active_window && m_active_window->is_modal(); }
const Window* highlight_window() const { return m_highlight_window.ptr(); }
void set_highlight_window(Window*);
void move_to_front_and_make_active(Window&);
Gfx::IntRect menubar_rect() const;
Gfx::IntRect desktop_rect() const;
const Cursor& active_cursor() const;
const Cursor& arrow_cursor() const { return *m_arrow_cursor; }
const Cursor& hand_cursor() const { return *m_hand_cursor; }
const Cursor& resize_horizontally_cursor() const { return *m_resize_horizontally_cursor; }
const Cursor& resize_vertically_cursor() const { return *m_resize_vertically_cursor; }
const Cursor& resize_diagonally_tlbr_cursor() const { return *m_resize_diagonally_tlbr_cursor; }
const Cursor& resize_diagonally_bltr_cursor() const { return *m_resize_diagonally_bltr_cursor; }
const Cursor& i_beam_cursor() const { return *m_i_beam_cursor; }
const Cursor& disallowed_cursor() const { return *m_disallowed_cursor; }
const Cursor& move_cursor() const { return *m_move_cursor; }
const Cursor& drag_cursor() const { return *m_drag_cursor; }
void invalidate(const Gfx::IntRect&);
void invalidate();
void flush(const Gfx::IntRect&);
const Gfx::Font& font() const;
const Gfx::Font& window_title_font() const;
bool set_resolution(int width, int height);
Gfx::IntSize resolution() const;
void set_active_window(Window*);
void set_hovered_button(Button*);
const Button* cursor_tracking_button() const { return m_cursor_tracking_button.ptr(); }
void set_cursor_tracking_button(Button*);
void set_resize_candidate(Window&, ResizeDirection);
void clear_resize_candidate();
ResizeDirection resize_direction_of_window(const Window&);
void tell_wm_listeners_window_state_changed(Window&);
void tell_wm_listeners_window_icon_changed(Window&);
void tell_wm_listeners_window_rect_changed(Window&);
void start_window_resize(Window&, const Gfx::IntPoint&, MouseButton);
void start_window_resize(Window&, const MouseEvent&);
const Window* active_fullscreen_window() const { return (m_active_window && m_active_window->is_fullscreen()) ? m_active_window : nullptr; }
Window* active_fullscreen_window() { return (m_active_window && m_active_window->is_fullscreen()) ? m_active_window : nullptr; }
bool update_theme(String theme_path, String theme_name);
void set_hovered_window(Window*);
void deliver_mouse_event(Window& window, MouseEvent& event);
void did_popup_a_menu(Badge<Menu>);
private:
NonnullRefPtr<Cursor> get_cursor(const String& name);
NonnullRefPtr<Cursor> get_cursor(const String& name, const Gfx::IntPoint& hotspot);
void process_mouse_event(MouseEvent&, Window*& hovered_window);
void process_event_for_doubleclick(Window& window, MouseEvent& event);
bool process_ongoing_window_resize(const MouseEvent&, Window*& hovered_window);
bool process_ongoing_window_move(MouseEvent&, Window*& hovered_window);
bool process_ongoing_drag(MouseEvent&, Window*& hovered_window);
void start_window_move(Window&, const MouseEvent&);
template<typename Callback>
IterationDecision for_each_visible_window_of_type_from_back_to_front(WindowType, Callback, bool ignore_highlight = false);
template<typename Callback>
IterationDecision for_each_visible_window_of_type_from_front_to_back(WindowType, Callback, bool ignore_highlight = false);
template<typename Callback>
IterationDecision for_each_visible_window_from_front_to_back(Callback);
template<typename Callback>
IterationDecision for_each_visible_window_from_back_to_front(Callback);
template<typename Callback>
void for_each_window_listening_to_wm_events(Callback);
template<typename Callback>
void for_each_window(Callback);
template<typename Callback>
IterationDecision for_each_window_of_type_from_front_to_back(WindowType, Callback, bool ignore_highlight = false);
virtual void event(Core::Event&) override;
void paint_window_frame(const Window&);
void tell_wm_listener_about_window(Window& listener, Window&);
void tell_wm_listener_about_window_icon(Window& listener, Window&);
void tell_wm_listener_about_window_rect(Window& listener, Window&);
void pick_new_active_window();
RefPtr<Cursor> m_arrow_cursor;
RefPtr<Cursor> m_hand_cursor;
RefPtr<Cursor> m_resize_horizontally_cursor;
RefPtr<Cursor> m_resize_vertically_cursor;
RefPtr<Cursor> m_resize_diagonally_tlbr_cursor;
RefPtr<Cursor> m_resize_diagonally_bltr_cursor;
RefPtr<Cursor> m_i_beam_cursor;
RefPtr<Cursor> m_disallowed_cursor;
RefPtr<Cursor> m_move_cursor;
RefPtr<Cursor> m_drag_cursor;
InlineLinkedList<Window> m_windows_in_order;
struct DoubleClickInfo {
struct ClickMetadata {
Core::ElapsedTimer clock;
Gfx::IntPoint last_position;
};
ClickMetadata& metadata_for_button(MouseButton);
void reset()
{
m_left = {};
m_right = {};
m_middle = {};
m_back = {};
m_forward = {};
}
WeakPtr<Window> m_clicked_window;
private:
ClickMetadata m_left;
ClickMetadata m_right;
ClickMetadata m_middle;
ClickMetadata m_back;
ClickMetadata m_forward;
};
DoubleClickInfo m_double_click_info;
int m_double_click_speed { 0 };
int m_max_distance_for_double_click { 4 };
WeakPtr<Window> m_active_window;
WeakPtr<Window> m_hovered_window;
WeakPtr<Window> m_highlight_window;
WeakPtr<Window> m_active_input_window;
WeakPtr<Window> m_move_window;
Gfx::IntPoint m_move_origin;
Gfx::IntPoint m_move_window_origin;
WeakPtr<Window> m_resize_window;
WeakPtr<Window> m_resize_candidate;
MouseButton m_resizing_mouse_button { MouseButton::None };
Gfx::IntRect m_resize_window_original_rect;
Gfx::IntPoint m_resize_origin;
ResizeDirection m_resize_direction { ResizeDirection::None };
u8 m_keyboard_modifiers { 0 };
WindowSwitcher m_switcher;
WeakPtr<Button> m_cursor_tracking_button;
WeakPtr<Button> m_hovered_button;
NonnullRefPtr<Gfx::PaletteImpl> m_palette;
RefPtr<Core::ConfigFile> m_config;
WeakPtr<ClientConnection> m_dnd_client;
String m_dnd_text;
String m_dnd_data_type;
String m_dnd_data;
RefPtr<Gfx::Bitmap> m_dnd_bitmap;
};
template<typename Callback>
IterationDecision WindowManager::for_each_visible_window_of_type_from_back_to_front(WindowType type, Callback callback, bool ignore_highlight)
{
bool do_highlight_window_at_end = false;
for (auto& window : m_windows_in_order) {
if (!window.is_visible())
continue;
if (window.is_minimized())
continue;
if (window.type() != type)
continue;
if (!ignore_highlight && m_highlight_window == &window) {
do_highlight_window_at_end = true;
continue;
}
if (callback(window) == IterationDecision::Break)
return IterationDecision::Break;
}
if (do_highlight_window_at_end) {
if (callback(*m_highlight_window) == IterationDecision::Break)
return IterationDecision::Break;
}
return IterationDecision::Continue;
}
template<typename Callback>
IterationDecision WindowManager::for_each_visible_window_from_back_to_front(Callback callback)
{
if (for_each_visible_window_of_type_from_back_to_front(WindowType::Desktop, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_back_to_front(WindowType::Normal, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_back_to_front(WindowType::Taskbar, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_back_to_front(WindowType::Tooltip, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_back_to_front(WindowType::Notification, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_back_to_front(WindowType::Menubar, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_back_to_front(WindowType::Menu, callback) == IterationDecision::Break)
return IterationDecision::Break;
return for_each_visible_window_of_type_from_back_to_front(WindowType::WindowSwitcher, callback);
}
template<typename Callback>
IterationDecision WindowManager::for_each_visible_window_of_type_from_front_to_back(WindowType type, Callback callback, bool ignore_highlight)
{
if (!ignore_highlight && m_highlight_window && m_highlight_window->type() == type && m_highlight_window->is_visible()) {
if (callback(*m_highlight_window) == IterationDecision::Break)
return IterationDecision::Break;
}
for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
if (!window->is_visible())
continue;
if (window->is_minimized())
continue;
if (window->type() != type)
continue;
if (!ignore_highlight && window == m_highlight_window)
continue;
if (callback(*window) == IterationDecision::Break)
return IterationDecision::Break;
}
return IterationDecision::Continue;
}
template<typename Callback>
IterationDecision WindowManager::for_each_visible_window_from_front_to_back(Callback callback)
{
if (for_each_visible_window_of_type_from_front_to_back(WindowType::WindowSwitcher, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_front_to_back(WindowType::Menu, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_front_to_back(WindowType::Menubar, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_front_to_back(WindowType::Notification, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_front_to_back(WindowType::Tooltip, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_front_to_back(WindowType::Taskbar, callback) == IterationDecision::Break)
return IterationDecision::Break;
if (for_each_visible_window_of_type_from_front_to_back(WindowType::Normal, callback) == IterationDecision::Break)
return IterationDecision::Break;
return for_each_visible_window_of_type_from_front_to_back(WindowType::Desktop, callback);
}
template<typename Callback>
void WindowManager::for_each_window_listening_to_wm_events(Callback callback)
{
for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
if (!window->listens_to_wm_events())
continue;
if (callback(*window) == IterationDecision::Break)
return;
}
}
template<typename Callback>
void WindowManager::for_each_window(Callback callback)
{
for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
if (callback(*window) == IterationDecision::Break)
return;
}
}
template<typename Callback>
IterationDecision WindowManager::for_each_window_of_type_from_front_to_back(WindowType type, Callback callback, bool ignore_highlight)
{
if (!ignore_highlight && m_highlight_window && m_highlight_window->type() == type && m_highlight_window->is_visible()) {
if (callback(*m_highlight_window) == IterationDecision::Break)
return IterationDecision::Break;
}
for (auto* window = m_windows_in_order.tail(); window; window = window->prev()) {
if (window->type() != type)
continue;
if (!ignore_highlight && window == m_highlight_window)
continue;
if (callback(*window) == IterationDecision::Break)
return IterationDecision::Break;
}
return IterationDecision::Continue;
}
}