mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 02:42:44 +00:00
aa56f9a1e0
With this patch the window manager related functionality is split out onto a new endpoint pair named WindowManagerServer/Client. This allows window manager functionality to be potentially privilege separated in the future. To this end, a new client named WMConnectionClient is used to maintain a window manager connection. When a process connects to the endpoint and greets the WindowServer as a window manager (via Window::make_window_manager(int)), they're subscribed to the events they requested via the WM event mask. This patch also removes the hardcoding of the Taskbar WindowType to receive WM events automatically. However, being a window manager still requires having an active window, at the moment.
1109 lines
35 KiB
C++
1109 lines
35 KiB
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Debug.h>
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#include <AK/HashMap.h>
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#include <AK/JsonObject.h>
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#include <AK/NeverDestroyed.h>
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#include <AK/ScopeGuard.h>
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#include <LibCore/EventLoop.h>
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#include <LibCore/MimeData.h>
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#include <LibGUI/Action.h>
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#include <LibGUI/Application.h>
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#include <LibGUI/Desktop.h>
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#include <LibGUI/Event.h>
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#include <LibGUI/Menubar.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/Widget.h>
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#include <LibGUI/Window.h>
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#include <LibGUI/WindowManagerServerConnection.h>
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#include <LibGUI/WindowServerConnection.h>
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#include <LibGfx/Bitmap.h>
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#include <fcntl.h>
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#include <serenity.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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namespace GUI {
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static i32 s_next_backing_store_serial;
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class WindowBackingStore {
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public:
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WindowBackingStore(NonnullRefPtr<Gfx::Bitmap> bitmap)
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: m_bitmap(bitmap)
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, m_serial(++s_next_backing_store_serial)
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{
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}
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Gfx::Bitmap& bitmap() { return *m_bitmap; }
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const Gfx::Bitmap& bitmap() const { return *m_bitmap; }
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Gfx::IntSize size() const { return m_bitmap->size(); }
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i32 serial() const { return m_serial; }
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private:
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NonnullRefPtr<Gfx::Bitmap> m_bitmap;
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const i32 m_serial;
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};
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static NeverDestroyed<HashTable<Window*>> all_windows;
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static NeverDestroyed<HashMap<int, Window*>> reified_windows;
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Window* Window::from_window_id(int window_id)
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{
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auto it = reified_windows->find(window_id);
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if (it != reified_windows->end())
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return (*it).value;
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return nullptr;
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}
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Window::Window(Core::Object* parent)
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: Core::Object(parent)
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{
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all_windows->set(this);
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m_rect_when_windowless = { -5000, -5000, 140, 140 };
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m_title_when_windowless = "GUI::Window";
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register_property(
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"title",
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[this] { return title(); },
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[this](auto& value) {
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set_title(value.to_string());
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return true;
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});
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register_property("visible", [this] { return is_visible(); });
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register_property("active", [this] { return is_active(); });
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REGISTER_BOOL_PROPERTY("minimizable", is_minimizable, set_minimizable);
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REGISTER_BOOL_PROPERTY("resizable", is_resizable, set_resizable);
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REGISTER_BOOL_PROPERTY("fullscreen", is_fullscreen, set_fullscreen);
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REGISTER_RECT_PROPERTY("rect", rect, set_rect);
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REGISTER_SIZE_PROPERTY("base_size", base_size, set_base_size);
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REGISTER_SIZE_PROPERTY("size_increment", size_increment, set_size_increment);
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}
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Window::~Window()
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{
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if (m_menubar)
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m_menubar->notify_removed_from_window({});
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all_windows->remove(this);
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hide();
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}
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void Window::close()
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{
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hide();
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if (on_close)
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on_close();
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}
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void Window::move_to_front()
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{
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if (!is_visible())
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return;
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WindowServerConnection::the().send_sync<Messages::WindowServer::MoveWindowToFront>(m_window_id);
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}
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void Window::show()
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{
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if (is_visible())
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return;
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auto* parent_window = find_parent_window();
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m_cursor = Gfx::StandardCursor::None;
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auto response = WindowServerConnection::the().send_sync<Messages::WindowServer::CreateWindow>(
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m_rect_when_windowless,
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!m_moved_by_client,
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m_has_alpha_channel,
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m_modal,
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m_minimizable,
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m_resizable,
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m_fullscreen,
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m_frameless,
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m_accessory,
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m_opacity_when_windowless,
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m_alpha_hit_threshold,
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m_base_size,
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m_size_increment,
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m_minimum_size_when_windowless,
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m_resize_aspect_ratio,
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(i32)m_window_type,
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m_title_when_windowless,
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parent_window ? parent_window->window_id() : 0);
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m_window_id = response->window_id();
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m_visible = true;
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apply_icon();
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if (m_menubar) {
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// This little dance makes us create a server-side menubar.
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auto menubar = move(m_menubar);
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set_menubar(menubar);
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}
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reified_windows->set(m_window_id, this);
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Application::the()->did_create_window({});
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update();
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}
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Window* Window::find_parent_window()
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{
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for (auto* ancestor = parent(); ancestor; ancestor = ancestor->parent()) {
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if (is<Window>(ancestor))
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return static_cast<Window*>(ancestor);
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}
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return nullptr;
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}
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void Window::server_did_destroy()
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{
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reified_windows->remove(m_window_id);
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m_window_id = 0;
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m_visible = false;
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m_pending_paint_event_rects.clear();
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m_back_store = nullptr;
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m_front_store = nullptr;
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m_cursor = Gfx::StandardCursor::None;
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}
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void Window::hide()
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{
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if (!is_visible())
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return;
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auto response = WindowServerConnection::the().send_sync<Messages::WindowServer::DestroyWindow>(m_window_id);
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server_did_destroy();
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for (auto child_window_id : response->destroyed_window_ids()) {
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if (auto* window = Window::from_window_id(child_window_id)) {
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window->server_did_destroy();
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}
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}
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if (auto* app = Application::the()) {
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bool app_has_visible_windows = false;
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for (auto& window : *all_windows) {
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if (window->is_visible()) {
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app_has_visible_windows = true;
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break;
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}
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}
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if (!app_has_visible_windows)
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app->did_delete_last_window({});
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}
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}
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void Window::set_title(String title)
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{
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m_title_when_windowless = move(title);
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if (!is_visible())
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return;
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WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowTitle>(m_window_id, m_title_when_windowless);
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}
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String Window::title() const
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{
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if (!is_visible())
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return m_title_when_windowless;
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return WindowServerConnection::the().send_sync<Messages::WindowServer::GetWindowTitle>(m_window_id)->title();
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}
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Gfx::IntRect Window::applet_rect_on_screen() const
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{
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VERIFY(m_window_type == WindowType::Applet);
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return WindowServerConnection::the().send_sync<Messages::WindowServer::GetAppletRectOnScreen>(m_window_id)->rect();
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}
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Gfx::IntRect Window::rect() const
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{
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if (!is_visible())
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return m_rect_when_windowless;
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return WindowServerConnection::the().send_sync<Messages::WindowServer::GetWindowRect>(m_window_id)->rect();
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}
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void Window::set_rect(const Gfx::IntRect& a_rect)
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{
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if (a_rect.location() != m_rect_when_windowless.location()) {
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m_moved_by_client = true;
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}
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m_rect_when_windowless = a_rect;
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if (!is_visible()) {
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if (m_main_widget)
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m_main_widget->resize(m_rect_when_windowless.size());
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return;
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}
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auto window_rect = WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowRect>(m_window_id, a_rect)->rect();
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if (m_back_store && m_back_store->size() != window_rect.size())
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m_back_store = nullptr;
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if (m_front_store && m_front_store->size() != window_rect.size())
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m_front_store = nullptr;
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if (m_main_widget)
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m_main_widget->resize(window_rect.size());
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}
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Gfx::IntSize Window::minimum_size() const
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{
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if (!is_visible())
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return m_minimum_size_when_windowless;
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return WindowServerConnection::the().send_sync<Messages::WindowServer::GetWindowMinimumSize>(m_window_id)->size();
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}
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void Window::set_minimum_size(const Gfx::IntSize& size)
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{
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m_minimum_size_modified = true;
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m_minimum_size_when_windowless = size;
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if (is_visible())
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WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowMinimumSize>(m_window_id, size);
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}
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void Window::center_on_screen()
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{
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auto window_rect = rect();
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window_rect.center_within(Desktop::the().rect());
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set_rect(window_rect);
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}
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void Window::center_within(const Window& other)
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{
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if (this == &other)
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return;
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auto window_rect = rect();
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window_rect.center_within(other.rect());
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set_rect(window_rect);
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}
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void Window::set_window_type(WindowType window_type)
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{
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m_window_type = window_type;
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if (!m_minimum_size_modified) {
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// Apply minimum size defaults.
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if (m_window_type == WindowType::Normal || m_window_type == WindowType::ToolWindow)
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m_minimum_size_when_windowless = { 50, 50 };
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else
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m_minimum_size_when_windowless = { 1, 1 };
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}
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}
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void Window::make_window_manager(unsigned event_mask)
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{
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GUI::WindowManagerServerConnection::the()
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.post_message(Messages::WindowManagerServer::SetEventMask(event_mask));
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GUI::WindowManagerServerConnection::the()
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.post_message(Messages::WindowManagerServer::SetManagerWindow(m_window_id));
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}
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void Window::set_cursor(Gfx::StandardCursor cursor)
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{
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if (m_cursor == cursor)
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return;
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m_cursor = cursor;
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m_custom_cursor = nullptr;
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update_cursor();
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}
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void Window::set_cursor(const Gfx::Bitmap& cursor)
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{
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if (m_custom_cursor == &cursor)
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return;
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m_cursor = Gfx::StandardCursor::None;
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m_custom_cursor = &cursor;
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update_cursor();
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}
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void Window::handle_drop_event(DropEvent& event)
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{
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if (!m_main_widget)
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return;
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auto result = m_main_widget->hit_test(event.position());
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auto local_event = make<DropEvent>(result.local_position, event.text(), event.mime_data());
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VERIFY(result.widget);
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result.widget->dispatch_event(*local_event, this);
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Application::the()->set_drag_hovered_widget({}, nullptr);
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}
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void Window::handle_mouse_event(MouseEvent& event)
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{
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if (m_global_cursor_tracking_widget) {
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auto window_relative_rect = m_global_cursor_tracking_widget->window_relative_rect();
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Gfx::IntPoint local_point { event.x() - window_relative_rect.x(), event.y() - window_relative_rect.y() };
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auto local_event = make<MouseEvent>((Event::Type)event.type(), local_point, event.buttons(), event.button(), event.modifiers(), event.wheel_delta());
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m_global_cursor_tracking_widget->dispatch_event(*local_event, this);
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return;
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}
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if (m_automatic_cursor_tracking_widget) {
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auto window_relative_rect = m_automatic_cursor_tracking_widget->window_relative_rect();
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Gfx::IntPoint local_point { event.x() - window_relative_rect.x(), event.y() - window_relative_rect.y() };
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auto local_event = make<MouseEvent>((Event::Type)event.type(), local_point, event.buttons(), event.button(), event.modifiers(), event.wheel_delta());
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m_automatic_cursor_tracking_widget->dispatch_event(*local_event, this);
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if (event.buttons() == 0)
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m_automatic_cursor_tracking_widget = nullptr;
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return;
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}
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if (!m_main_widget)
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return;
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auto result = m_main_widget->hit_test(event.position());
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auto local_event = make<MouseEvent>((Event::Type)event.type(), result.local_position, event.buttons(), event.button(), event.modifiers(), event.wheel_delta());
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VERIFY(result.widget);
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set_hovered_widget(result.widget);
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if (event.buttons() != 0 && !m_automatic_cursor_tracking_widget)
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m_automatic_cursor_tracking_widget = *result.widget;
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if (result.widget != m_global_cursor_tracking_widget.ptr())
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result.widget->dispatch_event(*local_event, this);
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if (!m_pending_paint_event_rects.is_empty()) {
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MultiPaintEvent paint_event(move(m_pending_paint_event_rects), size());
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handle_multi_paint_event(paint_event);
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}
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}
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void Window::handle_multi_paint_event(MultiPaintEvent& event)
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{
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if (!is_visible())
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return;
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if (!m_main_widget)
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return;
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auto rects = event.rects();
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if (!m_pending_paint_event_rects.is_empty()) {
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// It's possible that there had been some calls to update() that
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// haven't been flushed. We can handle these right now, avoiding
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// another round trip.
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rects.append(move(m_pending_paint_event_rects));
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}
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VERIFY(!rects.is_empty());
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if (m_back_store && m_back_store->size() != event.window_size()) {
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// Eagerly discard the backing store if we learn from this paint event that it needs to be bigger.
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// Otherwise we would have to wait for a resize event to tell us. This way we don't waste the
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// effort on painting into an undersized bitmap that will be thrown away anyway.
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m_back_store = nullptr;
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}
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bool created_new_backing_store = !m_back_store;
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if (!m_back_store) {
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m_back_store = create_backing_store(event.window_size());
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VERIFY(m_back_store);
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} else if (m_double_buffering_enabled) {
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bool still_has_pixels = m_back_store->bitmap().set_nonvolatile();
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if (!still_has_pixels) {
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m_back_store = create_backing_store(event.window_size());
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VERIFY(m_back_store);
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created_new_backing_store = true;
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}
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}
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auto rect = rects.first();
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if (rect.is_empty() || created_new_backing_store) {
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rects.clear();
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rects.append({ {}, event.window_size() });
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}
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for (auto& rect : rects) {
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PaintEvent paint_event(rect);
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m_main_widget->dispatch_event(paint_event, this);
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}
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if (m_double_buffering_enabled)
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flip(rects);
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else if (created_new_backing_store)
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set_current_backing_store(*m_back_store, true);
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if (is_visible())
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WindowServerConnection::the().post_message(Messages::WindowServer::DidFinishPainting(m_window_id, rects));
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}
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void Window::handle_key_event(KeyEvent& event)
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{
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if (!m_focused_widget && event.type() == Event::KeyDown && event.key() == Key_Tab && !event.ctrl() && !event.alt() && !event.super()) {
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focus_a_widget_if_possible(FocusSource::Keyboard);
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return;
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}
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if (m_focused_widget)
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return m_focused_widget->dispatch_event(event, this);
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if (m_main_widget)
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return m_main_widget->dispatch_event(event, this);
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}
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void Window::handle_resize_event(ResizeEvent& event)
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{
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auto new_size = event.size();
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if (m_back_store && m_back_store->size() != new_size)
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m_back_store = nullptr;
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if (!m_pending_paint_event_rects.is_empty()) {
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m_pending_paint_event_rects.clear_with_capacity();
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m_pending_paint_event_rects.append({ {}, new_size });
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}
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m_rect_when_windowless = { {}, new_size };
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if (m_main_widget)
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m_main_widget->set_relative_rect({ {}, new_size });
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}
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void Window::handle_input_entered_or_left_event(Core::Event& event)
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{
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m_is_active_input = event.type() == Event::WindowInputEntered;
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if (on_active_input_change)
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on_active_input_change(m_is_active_input);
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if (m_main_widget)
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m_main_widget->dispatch_event(event, this);
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if (m_focused_widget)
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m_focused_widget->update();
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}
|
|
|
|
void Window::handle_became_active_or_inactive_event(Core::Event& event)
|
|
{
|
|
if (event.type() == Event::WindowBecameActive)
|
|
Application::the()->window_did_become_active({}, *this);
|
|
else
|
|
Application::the()->window_did_become_inactive({}, *this);
|
|
if (m_main_widget)
|
|
m_main_widget->dispatch_event(event, this);
|
|
if (m_focused_widget)
|
|
m_focused_widget->update();
|
|
}
|
|
|
|
void Window::handle_close_request()
|
|
{
|
|
if (on_close_request) {
|
|
if (on_close_request() == Window::CloseRequestDecision::StayOpen)
|
|
return;
|
|
}
|
|
close();
|
|
}
|
|
|
|
void Window::handle_theme_change_event(ThemeChangeEvent& event)
|
|
{
|
|
if (!m_main_widget)
|
|
return;
|
|
auto dispatch_theme_change = [&](auto& widget, auto recursive) {
|
|
widget.dispatch_event(event, this);
|
|
widget.for_each_child_widget([&](auto& widget) -> IterationDecision {
|
|
widget.dispatch_event(event, this);
|
|
recursive(widget, recursive);
|
|
return IterationDecision::Continue;
|
|
});
|
|
};
|
|
dispatch_theme_change(*m_main_widget.ptr(), dispatch_theme_change);
|
|
}
|
|
|
|
void Window::handle_screen_rect_change_event(ScreenRectChangeEvent& event)
|
|
{
|
|
if (!m_main_widget)
|
|
return;
|
|
auto dispatch_screen_rect_change = [&](auto& widget, auto recursive) {
|
|
widget.dispatch_event(event, this);
|
|
widget.for_each_child_widget([&](auto& widget) -> IterationDecision {
|
|
widget.dispatch_event(event, this);
|
|
recursive(widget, recursive);
|
|
return IterationDecision::Continue;
|
|
});
|
|
};
|
|
dispatch_screen_rect_change(*m_main_widget.ptr(), dispatch_screen_rect_change);
|
|
screen_rect_change_event(event);
|
|
}
|
|
|
|
void Window::handle_drag_move_event(DragEvent& event)
|
|
{
|
|
if (!m_main_widget)
|
|
return;
|
|
auto result = m_main_widget->hit_test(event.position());
|
|
VERIFY(result.widget);
|
|
|
|
Application::the()->set_drag_hovered_widget({}, result.widget, result.local_position, event.mime_types());
|
|
|
|
// NOTE: Setting the drag hovered widget may have executed arbitrary code, so re-check that the widget is still there.
|
|
if (!result.widget)
|
|
return;
|
|
|
|
if (result.widget->has_pending_drop()) {
|
|
DragEvent drag_move_event(static_cast<Event::Type>(event.type()), result.local_position, event.mime_types());
|
|
result.widget->dispatch_event(drag_move_event, this);
|
|
}
|
|
}
|
|
|
|
void Window::handle_left_event()
|
|
{
|
|
set_hovered_widget(nullptr);
|
|
Application::the()->set_drag_hovered_widget({}, nullptr);
|
|
}
|
|
|
|
void Window::event(Core::Event& event)
|
|
{
|
|
ScopeGuard guard([&] {
|
|
// Accept the event so it doesn't bubble up to parent windows!
|
|
event.accept();
|
|
});
|
|
if (event.type() == Event::Drop)
|
|
return handle_drop_event(static_cast<DropEvent&>(event));
|
|
|
|
if (event.type() == Event::MouseUp || event.type() == Event::MouseDown || event.type() == Event::MouseDoubleClick || event.type() == Event::MouseMove || event.type() == Event::MouseWheel)
|
|
return handle_mouse_event(static_cast<MouseEvent&>(event));
|
|
|
|
if (event.type() == Event::MultiPaint)
|
|
return handle_multi_paint_event(static_cast<MultiPaintEvent&>(event));
|
|
|
|
if (event.type() == Event::KeyUp || event.type() == Event::KeyDown)
|
|
return handle_key_event(static_cast<KeyEvent&>(event));
|
|
|
|
if (event.type() == Event::WindowBecameActive || event.type() == Event::WindowBecameInactive)
|
|
return handle_became_active_or_inactive_event(event);
|
|
|
|
if (event.type() == Event::WindowInputEntered || event.type() == Event::WindowInputLeft)
|
|
return handle_input_entered_or_left_event(event);
|
|
|
|
if (event.type() == Event::WindowCloseRequest)
|
|
return handle_close_request();
|
|
|
|
if (event.type() == Event::WindowLeft)
|
|
return handle_left_event();
|
|
|
|
if (event.type() == Event::Resize)
|
|
return handle_resize_event(static_cast<ResizeEvent&>(event));
|
|
|
|
if (event.type() > Event::__Begin_WM_Events && event.type() < Event::__End_WM_Events)
|
|
return wm_event(static_cast<WMEvent&>(event));
|
|
|
|
if (event.type() == Event::DragMove)
|
|
return handle_drag_move_event(static_cast<DragEvent&>(event));
|
|
|
|
if (event.type() == Event::ThemeChange)
|
|
return handle_theme_change_event(static_cast<ThemeChangeEvent&>(event));
|
|
|
|
if (event.type() == Event::ScreenRectChange)
|
|
return handle_screen_rect_change_event(static_cast<ScreenRectChangeEvent&>(event));
|
|
|
|
Core::Object::event(event);
|
|
}
|
|
|
|
bool Window::is_visible() const
|
|
{
|
|
return m_visible;
|
|
}
|
|
|
|
void Window::update()
|
|
{
|
|
auto rect = this->rect();
|
|
update({ 0, 0, rect.width(), rect.height() });
|
|
}
|
|
|
|
void Window::force_update()
|
|
{
|
|
if (!is_visible())
|
|
return;
|
|
auto rect = this->rect();
|
|
WindowServerConnection::the().post_message(Messages::WindowServer::InvalidateRect(m_window_id, { { 0, 0, rect.width(), rect.height() } }, true));
|
|
}
|
|
|
|
void Window::update(const Gfx::IntRect& a_rect)
|
|
{
|
|
if (!is_visible())
|
|
return;
|
|
|
|
for (auto& pending_rect : m_pending_paint_event_rects) {
|
|
if (pending_rect.contains(a_rect)) {
|
|
#if UPDATE_COALESCING_DEBUG
|
|
dbgln("Ignoring {} since it's contained by pending rect {}", a_rect, pending_rect);
|
|
#endif
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (m_pending_paint_event_rects.is_empty()) {
|
|
deferred_invoke([this](auto&) {
|
|
auto rects = move(m_pending_paint_event_rects);
|
|
if (rects.is_empty())
|
|
return;
|
|
WindowServerConnection::the().post_message(Messages::WindowServer::InvalidateRect(m_window_id, rects, false));
|
|
});
|
|
}
|
|
m_pending_paint_event_rects.append(a_rect);
|
|
}
|
|
|
|
void Window::set_main_widget(Widget* widget)
|
|
{
|
|
if (m_main_widget == widget)
|
|
return;
|
|
if (m_main_widget) {
|
|
m_main_widget->set_window(nullptr);
|
|
remove_child(*m_main_widget);
|
|
}
|
|
m_main_widget = widget;
|
|
if (m_main_widget) {
|
|
add_child(*widget);
|
|
auto new_window_rect = rect();
|
|
if (m_main_widget->min_width() >= 0)
|
|
new_window_rect.set_width(max(new_window_rect.width(), m_main_widget->min_width()));
|
|
if (m_main_widget->min_height() >= 0)
|
|
new_window_rect.set_height(max(new_window_rect.height(), m_main_widget->min_height()));
|
|
set_rect(new_window_rect);
|
|
m_main_widget->set_relative_rect({ {}, new_window_rect.size() });
|
|
m_main_widget->set_window(this);
|
|
if (m_main_widget->focus_policy() != FocusPolicy::NoFocus)
|
|
m_main_widget->set_focus(true);
|
|
}
|
|
update();
|
|
}
|
|
|
|
void Window::set_focused_widget(Widget* widget, FocusSource source)
|
|
{
|
|
if (m_focused_widget == widget)
|
|
return;
|
|
|
|
WeakPtr<Widget> previously_focused_widget = m_focused_widget;
|
|
m_focused_widget = widget;
|
|
|
|
if (previously_focused_widget) {
|
|
Core::EventLoop::current().post_event(*previously_focused_widget, make<FocusEvent>(Event::FocusOut, source));
|
|
previously_focused_widget->update();
|
|
if (previously_focused_widget && previously_focused_widget->on_focus_change)
|
|
previously_focused_widget->on_focus_change(previously_focused_widget->is_focused(), source);
|
|
}
|
|
if (m_focused_widget) {
|
|
Core::EventLoop::current().post_event(*m_focused_widget, make<FocusEvent>(Event::FocusIn, source));
|
|
m_focused_widget->update();
|
|
if (m_focused_widget && m_focused_widget->on_focus_change)
|
|
m_focused_widget->on_focus_change(m_focused_widget->is_focused(), source);
|
|
}
|
|
}
|
|
|
|
void Window::set_global_cursor_tracking_widget(Widget* widget)
|
|
{
|
|
if (widget == m_global_cursor_tracking_widget)
|
|
return;
|
|
m_global_cursor_tracking_widget = widget;
|
|
}
|
|
|
|
void Window::set_automatic_cursor_tracking_widget(Widget* widget)
|
|
{
|
|
if (widget == m_automatic_cursor_tracking_widget)
|
|
return;
|
|
m_automatic_cursor_tracking_widget = widget;
|
|
}
|
|
|
|
void Window::set_has_alpha_channel(bool value)
|
|
{
|
|
if (m_has_alpha_channel == value)
|
|
return;
|
|
m_has_alpha_channel = value;
|
|
if (!is_visible())
|
|
return;
|
|
|
|
m_pending_paint_event_rects.clear();
|
|
m_back_store = nullptr;
|
|
m_front_store = nullptr;
|
|
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowHasAlphaChannel>(m_window_id, value);
|
|
update();
|
|
}
|
|
|
|
void Window::set_double_buffering_enabled(bool value)
|
|
{
|
|
VERIFY(!is_visible());
|
|
m_double_buffering_enabled = value;
|
|
}
|
|
|
|
void Window::set_opacity(float opacity)
|
|
{
|
|
m_opacity_when_windowless = opacity;
|
|
if (!is_visible())
|
|
return;
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowOpacity>(m_window_id, opacity);
|
|
}
|
|
|
|
void Window::set_alpha_hit_threshold(float threshold)
|
|
{
|
|
if (threshold < 0.0f)
|
|
threshold = 0.0f;
|
|
else if (threshold > 1.0f)
|
|
threshold = 1.0f;
|
|
if (m_alpha_hit_threshold == threshold)
|
|
return;
|
|
m_alpha_hit_threshold = threshold;
|
|
if (!is_visible())
|
|
return;
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowAlphaHitThreshold>(m_window_id, threshold);
|
|
}
|
|
|
|
void Window::set_hovered_widget(Widget* widget)
|
|
{
|
|
if (widget == m_hovered_widget)
|
|
return;
|
|
|
|
if (m_hovered_widget)
|
|
Core::EventLoop::current().post_event(*m_hovered_widget, make<Event>(Event::Leave));
|
|
|
|
m_hovered_widget = widget;
|
|
|
|
if (m_hovered_widget)
|
|
Core::EventLoop::current().post_event(*m_hovered_widget, make<Event>(Event::Enter));
|
|
}
|
|
|
|
void Window::set_current_backing_store(WindowBackingStore& backing_store, bool flush_immediately)
|
|
{
|
|
auto& bitmap = backing_store.bitmap();
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowBackingStore>(m_window_id, 32, bitmap.pitch(), bitmap.anon_fd(), backing_store.serial(), bitmap.has_alpha_channel(), bitmap.size(), flush_immediately);
|
|
}
|
|
|
|
void Window::flip(const Vector<Gfx::IntRect, 32>& dirty_rects)
|
|
{
|
|
swap(m_front_store, m_back_store);
|
|
|
|
set_current_backing_store(*m_front_store);
|
|
|
|
if (!m_back_store || m_back_store->size() != m_front_store->size()) {
|
|
m_back_store = create_backing_store(m_front_store->size());
|
|
VERIFY(m_back_store);
|
|
memcpy(m_back_store->bitmap().scanline(0), m_front_store->bitmap().scanline(0), m_front_store->bitmap().size_in_bytes());
|
|
m_back_store->bitmap().set_volatile();
|
|
return;
|
|
}
|
|
|
|
// Copy whatever was painted from the front to the back.
|
|
Painter painter(m_back_store->bitmap());
|
|
for (auto& dirty_rect : dirty_rects)
|
|
painter.blit(dirty_rect.location(), m_front_store->bitmap(), dirty_rect, 1.0f, false);
|
|
|
|
m_back_store->bitmap().set_volatile();
|
|
}
|
|
|
|
OwnPtr<WindowBackingStore> Window::create_backing_store(const Gfx::IntSize& size)
|
|
{
|
|
auto format = m_has_alpha_channel ? Gfx::BitmapFormat::BGRA8888 : Gfx::BitmapFormat::BGRx8888;
|
|
|
|
VERIFY(!size.is_empty());
|
|
size_t pitch = Gfx::Bitmap::minimum_pitch(size.width(), format);
|
|
size_t size_in_bytes = size.height() * pitch;
|
|
|
|
auto anon_fd = anon_create(round_up_to_power_of_two(size_in_bytes, PAGE_SIZE), O_CLOEXEC);
|
|
if (anon_fd < 0) {
|
|
perror("anon_create");
|
|
return {};
|
|
}
|
|
|
|
// FIXME: Plumb scale factor here eventually.
|
|
auto bitmap = Gfx::Bitmap::create_with_anon_fd(format, anon_fd, size, 1, {}, Gfx::Bitmap::ShouldCloseAnonymousFile::No);
|
|
if (!bitmap)
|
|
return {};
|
|
return make<WindowBackingStore>(bitmap.release_nonnull());
|
|
}
|
|
|
|
void Window::set_modal(bool modal)
|
|
{
|
|
VERIFY(!is_visible());
|
|
m_modal = modal;
|
|
}
|
|
|
|
void Window::wm_event(WMEvent&)
|
|
{
|
|
}
|
|
|
|
void Window::screen_rect_change_event(ScreenRectChangeEvent&)
|
|
{
|
|
}
|
|
|
|
void Window::set_icon(const Gfx::Bitmap* icon)
|
|
{
|
|
if (m_icon == icon)
|
|
return;
|
|
|
|
Gfx::IntSize icon_size = icon ? icon->size() : Gfx::IntSize(16, 16);
|
|
|
|
m_icon = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, icon_size);
|
|
VERIFY(m_icon);
|
|
if (icon) {
|
|
Painter painter(*m_icon);
|
|
painter.blit({ 0, 0 }, *icon, icon->rect());
|
|
}
|
|
|
|
apply_icon();
|
|
}
|
|
|
|
void Window::apply_icon()
|
|
{
|
|
if (!m_icon)
|
|
return;
|
|
|
|
if (!is_visible())
|
|
return;
|
|
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowIconBitmap>(m_window_id, m_icon->to_shareable_bitmap());
|
|
}
|
|
|
|
void Window::start_interactive_resize()
|
|
{
|
|
WindowServerConnection::the().post_message(Messages::WindowServer::StartWindowResize(m_window_id));
|
|
}
|
|
|
|
Vector<Widget*> Window::focusable_widgets(FocusSource source) const
|
|
{
|
|
if (!m_main_widget)
|
|
return {};
|
|
|
|
HashTable<Widget*> seen_widgets;
|
|
Vector<Widget*> collected_widgets;
|
|
|
|
Function<void(Widget&)> collect_focusable_widgets = [&](auto& widget) {
|
|
bool widget_accepts_focus = false;
|
|
switch (source) {
|
|
case FocusSource::Keyboard:
|
|
widget_accepts_focus = has_flag(widget.focus_policy(), FocusPolicy::TabFocus);
|
|
break;
|
|
case FocusSource::Mouse:
|
|
widget_accepts_focus = has_flag(widget.focus_policy(), FocusPolicy::ClickFocus);
|
|
break;
|
|
case FocusSource::Programmatic:
|
|
widget_accepts_focus = widget.focus_policy() != FocusPolicy::NoFocus;
|
|
break;
|
|
}
|
|
|
|
if (widget_accepts_focus) {
|
|
auto& effective_focus_widget = widget.focus_proxy() ? *widget.focus_proxy() : widget;
|
|
if (seen_widgets.set(&effective_focus_widget) == AK::HashSetResult::InsertedNewEntry)
|
|
collected_widgets.append(&effective_focus_widget);
|
|
}
|
|
widget.for_each_child_widget([&](auto& child) {
|
|
if (!child.is_visible())
|
|
return IterationDecision::Continue;
|
|
if (!child.is_enabled())
|
|
return IterationDecision::Continue;
|
|
collect_focusable_widgets(child);
|
|
return IterationDecision::Continue;
|
|
});
|
|
};
|
|
|
|
collect_focusable_widgets(const_cast<Widget&>(*m_main_widget));
|
|
return collected_widgets;
|
|
}
|
|
|
|
void Window::set_fullscreen(bool fullscreen)
|
|
{
|
|
if (m_fullscreen == fullscreen)
|
|
return;
|
|
m_fullscreen = fullscreen;
|
|
if (!is_visible())
|
|
return;
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetFullscreen>(m_window_id, fullscreen);
|
|
}
|
|
|
|
void Window::set_frameless(bool frameless)
|
|
{
|
|
if (m_frameless == frameless)
|
|
return;
|
|
m_frameless = frameless;
|
|
if (!is_visible())
|
|
return;
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetFrameless>(m_window_id, frameless);
|
|
}
|
|
|
|
bool Window::is_maximized() const
|
|
{
|
|
if (!is_visible())
|
|
return false;
|
|
|
|
return WindowServerConnection::the().send_sync<Messages::WindowServer::IsMaximized>(m_window_id)->maximized();
|
|
}
|
|
|
|
void Window::schedule_relayout()
|
|
{
|
|
if (m_layout_pending)
|
|
return;
|
|
m_layout_pending = true;
|
|
deferred_invoke([this](auto&) {
|
|
if (main_widget())
|
|
main_widget()->do_layout();
|
|
update();
|
|
m_layout_pending = false;
|
|
});
|
|
}
|
|
|
|
void Window::refresh_system_theme()
|
|
{
|
|
WindowServerConnection::the().post_message(Messages::WindowServer::RefreshSystemTheme());
|
|
}
|
|
|
|
void Window::for_each_window(Badge<WindowServerConnection>, Function<void(Window&)> callback)
|
|
{
|
|
for (auto& e : *reified_windows) {
|
|
VERIFY(e.value);
|
|
callback(*e.value);
|
|
}
|
|
}
|
|
|
|
void Window::update_all_windows(Badge<WindowServerConnection>)
|
|
{
|
|
for (auto& e : *reified_windows) {
|
|
e.value->force_update();
|
|
}
|
|
}
|
|
|
|
void Window::notify_state_changed(Badge<WindowServerConnection>, bool minimized, bool occluded)
|
|
{
|
|
m_visible_for_timer_purposes = !minimized && !occluded;
|
|
|
|
// When double buffering is enabled, minimization/occlusion means we can mark the front bitmap volatile (in addition to the back bitmap.)
|
|
// When double buffering is disabled, there is only the back bitmap (which we can now mark volatile!)
|
|
auto& store = m_double_buffering_enabled ? m_front_store : m_back_store;
|
|
if (!store)
|
|
return;
|
|
if (minimized || occluded) {
|
|
store->bitmap().set_volatile();
|
|
} else {
|
|
if (!store->bitmap().set_nonvolatile()) {
|
|
store = nullptr;
|
|
update();
|
|
}
|
|
}
|
|
}
|
|
|
|
Action* Window::action_for_key_event(const KeyEvent& event)
|
|
{
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|
Shortcut shortcut(event.modifiers(), (KeyCode)event.key());
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|
Action* found_action = nullptr;
|
|
for_each_child_of_type<Action>([&](auto& action) {
|
|
if (action.shortcut() == shortcut) {
|
|
found_action = &action;
|
|
return IterationDecision::Break;
|
|
}
|
|
return IterationDecision::Continue;
|
|
});
|
|
return found_action;
|
|
}
|
|
|
|
void Window::set_base_size(const Gfx::IntSize& base_size)
|
|
{
|
|
if (m_base_size == base_size)
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|
return;
|
|
m_base_size = base_size;
|
|
if (is_visible())
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowBaseSizeAndSizeIncrement>(m_window_id, m_base_size, m_size_increment);
|
|
}
|
|
|
|
void Window::set_size_increment(const Gfx::IntSize& size_increment)
|
|
{
|
|
if (m_size_increment == size_increment)
|
|
return;
|
|
m_size_increment = size_increment;
|
|
if (is_visible())
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowBaseSizeAndSizeIncrement>(m_window_id, m_base_size, m_size_increment);
|
|
}
|
|
|
|
void Window::set_resize_aspect_ratio(const Optional<Gfx::IntSize>& ratio)
|
|
{
|
|
if (m_resize_aspect_ratio == ratio)
|
|
return;
|
|
|
|
m_resize_aspect_ratio = ratio;
|
|
if (is_visible())
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowResizeAspectRatio>(m_window_id, m_resize_aspect_ratio);
|
|
}
|
|
|
|
void Window::did_add_widget(Badge<Widget>, Widget&)
|
|
{
|
|
if (!m_focused_widget)
|
|
focus_a_widget_if_possible(FocusSource::Mouse);
|
|
}
|
|
|
|
void Window::did_remove_widget(Badge<Widget>, Widget& widget)
|
|
{
|
|
if (m_focused_widget == &widget)
|
|
m_focused_widget = nullptr;
|
|
if (m_hovered_widget == &widget)
|
|
m_hovered_widget = nullptr;
|
|
if (m_global_cursor_tracking_widget == &widget)
|
|
m_global_cursor_tracking_widget = nullptr;
|
|
if (m_automatic_cursor_tracking_widget == &widget)
|
|
m_automatic_cursor_tracking_widget = nullptr;
|
|
}
|
|
|
|
void Window::set_progress(int progress)
|
|
{
|
|
VERIFY(m_window_id);
|
|
WindowServerConnection::the().post_message(Messages::WindowServer::SetWindowProgress(m_window_id, progress));
|
|
}
|
|
|
|
void Window::update_cursor()
|
|
{
|
|
Gfx::StandardCursor new_cursor;
|
|
|
|
if (m_hovered_widget && m_hovered_widget->override_cursor() != Gfx::StandardCursor::None)
|
|
new_cursor = m_hovered_widget->override_cursor();
|
|
else
|
|
new_cursor = m_cursor;
|
|
|
|
if (m_effective_cursor == new_cursor)
|
|
return;
|
|
m_effective_cursor = new_cursor;
|
|
|
|
if (m_custom_cursor)
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowCustomCursor>(m_window_id, m_custom_cursor->to_shareable_bitmap());
|
|
else
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowCursor>(m_window_id, (u32)m_effective_cursor);
|
|
}
|
|
|
|
void Window::focus_a_widget_if_possible(FocusSource source)
|
|
{
|
|
auto focusable_widgets = this->focusable_widgets(source);
|
|
if (!focusable_widgets.is_empty())
|
|
set_focused_widget(focusable_widgets[0], source);
|
|
}
|
|
|
|
void Window::did_disable_focused_widget(Badge<Widget>)
|
|
{
|
|
focus_a_widget_if_possible(FocusSource::Mouse);
|
|
}
|
|
|
|
bool Window::is_active() const
|
|
{
|
|
VERIFY(Application::the());
|
|
return this == Application::the()->active_window();
|
|
}
|
|
|
|
Gfx::Bitmap* Window::back_bitmap()
|
|
{
|
|
return m_back_store ? &m_back_store->bitmap() : nullptr;
|
|
}
|
|
|
|
void Window::set_menubar(RefPtr<Menubar> menubar)
|
|
{
|
|
if (m_menubar == menubar)
|
|
return;
|
|
if (m_menubar)
|
|
m_menubar->notify_removed_from_window({});
|
|
m_menubar = move(menubar);
|
|
if (m_window_id && m_menubar) {
|
|
m_menubar->notify_added_to_window({});
|
|
WindowServerConnection::the().send_sync<Messages::WindowServer::SetWindowMenubar>(m_window_id, m_menubar->menubar_id());
|
|
}
|
|
}
|
|
|
|
}
|