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serenity/Services/WindowServer/ClientConnection.h
Tom 862ab82c19 WindowServer: Fixes for modal windows 
This fixes a few problems with modal windows:

* If any child window, or any child window further down the
  tree is considered modal, then all windows in that chain
  are modal.
* When trying to activate a window blocked by a modal child
  bring the entire stack of modal windows to the front and
  activate the modal window.
* A window is modal if it has a parent and it's flagged as
  modal, regardless of whether the ClientConnection has
  created modal windows.

This technically supports diverging modal window trees as well,
where two modal windows share the same parent, allowing both to
be activated (including for input) but not the parent. And it
should also support modal window stacks of arbitrary depth.
2020-07-16 00:08:01 +02:00

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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/Badge.h>
#include <AK/Function.h>
#include <AK/HashMap.h>
#include <AK/OwnPtr.h>
#include <AK/WeakPtr.h>
#include <LibCore/Object.h>
#include <LibGfx/Bitmap.h>
#include <LibIPC/ClientConnection.h>
#include <WindowServer/Event.h>
#include <WindowServer/WindowServerEndpoint.h>
namespace WindowServer {
class Compositor;
class Window;
class Menu;
class MenuBar;
class ClientConnection final
: public IPC::ClientConnection<WindowServerEndpoint>
, public WindowServerEndpoint {
C_OBJECT(ClientConnection)
public:
~ClientConnection() override;
bool is_unresponsive() const { return m_unresponsive; }
void boost();
void deboost();
static ClientConnection* from_client_id(int client_id);
static void for_each_client(Function<void(ClientConnection&)>);
MenuBar* app_menubar() { return m_app_menubar.ptr(); }
void notify_about_new_screen_rect(const Gfx::IntRect&);
void post_paint_message(Window&, bool ignore_occlusion = false);
Menu* find_menu_by_id(int menu_id)
{
auto menu = m_menus.get(menu_id);
if (!menu.has_value())
return nullptr;
return const_cast<Menu*>(menu.value().ptr());
}
const Menu* find_menu_by_id(int menu_id) const
{
auto menu = m_menus.get(menu_id);
if (!menu.has_value())
return nullptr;
return menu.value().ptr();
}
void notify_display_link(Badge<Compositor>);
private:
explicit ClientConnection(NonnullRefPtr<Core::LocalSocket>, int client_id);
// ^ClientConnection
virtual void die() override;
virtual void may_have_become_unresponsive() override;
virtual void did_become_responsive() override;
void set_unresponsive(bool);
void destroy_window(Window&, Vector<i32>& destroyed_window_ids);
virtual OwnPtr<Messages::WindowServer::GreetResponse> handle(const Messages::WindowServer::Greet&) override;
virtual OwnPtr<Messages::WindowServer::CreateMenubarResponse> handle(const Messages::WindowServer::CreateMenubar&) override;
virtual OwnPtr<Messages::WindowServer::DestroyMenubarResponse> handle(const Messages::WindowServer::DestroyMenubar&) override;
virtual OwnPtr<Messages::WindowServer::CreateMenuResponse> handle(const Messages::WindowServer::CreateMenu&) override;
virtual OwnPtr<Messages::WindowServer::DestroyMenuResponse> handle(const Messages::WindowServer::DestroyMenu&) override;
virtual OwnPtr<Messages::WindowServer::AddMenuToMenubarResponse> handle(const Messages::WindowServer::AddMenuToMenubar&) override;
virtual OwnPtr<Messages::WindowServer::SetApplicationMenubarResponse> handle(const Messages::WindowServer::SetApplicationMenubar&) override;
virtual OwnPtr<Messages::WindowServer::AddMenuItemResponse> handle(const Messages::WindowServer::AddMenuItem&) override;
virtual OwnPtr<Messages::WindowServer::AddMenuSeparatorResponse> handle(const Messages::WindowServer::AddMenuSeparator&) override;
virtual OwnPtr<Messages::WindowServer::UpdateMenuItemResponse> handle(const Messages::WindowServer::UpdateMenuItem&) override;
virtual OwnPtr<Messages::WindowServer::CreateWindowResponse> handle(const Messages::WindowServer::CreateWindow&) override;
virtual OwnPtr<Messages::WindowServer::DestroyWindowResponse> handle(const Messages::WindowServer::DestroyWindow&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowTitleResponse> handle(const Messages::WindowServer::SetWindowTitle&) override;
virtual OwnPtr<Messages::WindowServer::GetWindowTitleResponse> handle(const Messages::WindowServer::GetWindowTitle&) override;
virtual OwnPtr<Messages::WindowServer::IsMaximizedResponse> handle(const Messages::WindowServer::IsMaximized&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowRectResponse> handle(const Messages::WindowServer::SetWindowRect&) override;
virtual OwnPtr<Messages::WindowServer::GetWindowRectResponse> handle(const Messages::WindowServer::GetWindowRect&) override;
virtual void handle(const Messages::WindowServer::InvalidateRect&) override;
virtual void handle(const Messages::WindowServer::DidFinishPainting&) override;
virtual OwnPtr<Messages::WindowServer::SetGlobalCursorTrackingResponse> handle(const Messages::WindowServer::SetGlobalCursorTracking&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowOpacityResponse> handle(const Messages::WindowServer::SetWindowOpacity&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowBackingStoreResponse> handle(const Messages::WindowServer::SetWindowBackingStore&) override;
virtual void handle(const Messages::WindowServer::WM_SetActiveWindow&) override;
virtual void handle(const Messages::WindowServer::WM_SetWindowMinimized&) override;
virtual void handle(const Messages::WindowServer::WM_StartWindowResize&) override;
virtual void handle(const Messages::WindowServer::WM_PopupWindowMenu&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowHasAlphaChannelResponse> handle(const Messages::WindowServer::SetWindowHasAlphaChannel&) override;
virtual OwnPtr<Messages::WindowServer::MoveWindowToFrontResponse> handle(const Messages::WindowServer::MoveWindowToFront&) override;
virtual OwnPtr<Messages::WindowServer::SetFullscreenResponse> handle(const Messages::WindowServer::SetFullscreen&) override;
virtual void handle(const Messages::WindowServer::AsyncSetWallpaper&) override;
virtual OwnPtr<Messages::WindowServer::SetBackgroundColorResponse> handle(const Messages::WindowServer::SetBackgroundColor&) override;
virtual OwnPtr<Messages::WindowServer::SetWallpaperModeResponse> handle(const Messages::WindowServer::SetWallpaperMode&) override;
virtual OwnPtr<Messages::WindowServer::GetWallpaperResponse> handle(const Messages::WindowServer::GetWallpaper&) override;
virtual OwnPtr<Messages::WindowServer::SetResolutionResponse> handle(const Messages::WindowServer::SetResolution&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowOverrideCursorResponse> handle(const Messages::WindowServer::SetWindowOverrideCursor&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowCustomOverrideCursorResponse> handle(const Messages::WindowServer::SetWindowCustomOverrideCursor&) override;
virtual OwnPtr<Messages::WindowServer::PopupMenuResponse> handle(const Messages::WindowServer::PopupMenu&) override;
virtual OwnPtr<Messages::WindowServer::DismissMenuResponse> handle(const Messages::WindowServer::DismissMenu&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowIconBitmapResponse> handle(const Messages::WindowServer::SetWindowIconBitmap&) override;
virtual void handle(const Messages::WindowServer::WM_SetWindowTaskbarRect&) override;
virtual OwnPtr<Messages::WindowServer::StartDragResponse> handle(const Messages::WindowServer::StartDrag&) override;
virtual OwnPtr<Messages::WindowServer::SetSystemMenuResponse> handle(const Messages::WindowServer::SetSystemMenu&) override;
virtual OwnPtr<Messages::WindowServer::SetSystemThemeResponse> handle(const Messages::WindowServer::SetSystemTheme&) override;
virtual OwnPtr<Messages::WindowServer::GetSystemThemeResponse> handle(const Messages::WindowServer::GetSystemTheme&) override;
virtual OwnPtr<Messages::WindowServer::SetWindowBaseSizeAndSizeIncrementResponse> handle(const Messages::WindowServer::SetWindowBaseSizeAndSizeIncrement&) override;
virtual void handle(const Messages::WindowServer::EnableDisplayLink&) override;
virtual void handle(const Messages::WindowServer::DisableDisplayLink&) override;
virtual void handle(const Messages::WindowServer::SetWindowProgress&) override;
virtual void handle(const Messages::WindowServer::Pong&) override;
Window* window_from_id(i32 window_id);
HashMap<int, NonnullRefPtr<Window>> m_windows;
HashMap<int, NonnullOwnPtr<MenuBar>> m_menubars;
HashMap<int, NonnullRefPtr<Menu>> m_menus;
WeakPtr<MenuBar> m_app_menubar;
RefPtr<Core::Timer> m_ping_timer;
int m_next_menubar_id { 10000 };
int m_next_menu_id { 20000 };
int m_next_window_id { 1982 };
bool m_has_display_link { false };
bool m_unresponsive { false };
};
}
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