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https://github.com/LadybirdBrowser/ladybird.git
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24d299c9c8
and the CaptureInput mode. They are a source of unneeded complexity in WindowServer and have proven prone to regressions, so this patch replaces them with a simple input preemption scheme using Popups. Popup windows now have ergonomics similar to menus: When open, a popup preempts all mouse and key events for the entire window stack; however, they are fragile and will close after WindowServer swallows the first event outside them. This is similar to how combo box windows and popups work in the classic Windows DE and has the added benefit of letting the user click anywhere to dismiss a popup without having to worry about unwanted interactions with other widgets.
399 lines
16 KiB
C++
399 lines
16 KiB
C++
/*
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* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Debug.h>
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#include <AK/StringBuilder.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/CommandPalette.h>
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#include <LibGUI/ConnectionToWindowServer.h>
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#include <LibGUI/Desktop.h>
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#include <LibGUI/DisplayLink.h>
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#include <LibGUI/DragOperation.h>
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#include <LibGUI/EmojiInputDialog.h>
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#include <LibGUI/Event.h>
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#include <LibGUI/Menu.h>
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#include <LibGUI/MouseTracker.h>
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#include <LibGUI/Shortcut.h>
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#include <LibGUI/Window.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/Font/FontDatabase.h>
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#include <LibGfx/Palette.h>
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#include <LibGfx/SystemTheme.h>
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namespace GUI {
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ConnectionToWindowServer& ConnectionToWindowServer::the()
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{
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static RefPtr<ConnectionToWindowServer> s_connection = nullptr;
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if (!s_connection)
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s_connection = ConnectionToWindowServer::try_create().release_value_but_fixme_should_propagate_errors();
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return *s_connection;
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}
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static void set_system_theme_from_anonymous_buffer(Core::AnonymousBuffer buffer)
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{
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Gfx::set_system_theme(buffer);
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Application::the()->set_system_palette(buffer);
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}
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ConnectionToWindowServer::ConnectionToWindowServer(NonnullOwnPtr<Core::Stream::LocalSocket> socket)
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: IPC::ConnectionToServer<WindowClientEndpoint, WindowServerEndpoint>(*this, move(socket))
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{
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// NOTE: WindowServer automatically sends a "fast_greet" message to us when we connect.
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// All we have to do is wait for it to arrive. This avoids a round-trip during application startup.
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auto message = wait_for_specific_message<Messages::WindowClient::FastGreet>();
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set_system_theme_from_anonymous_buffer(message->theme_buffer());
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Desktop::the().did_receive_screen_rects({}, message->screen_rects(), message->main_screen_index(), message->workspace_rows(), message->workspace_columns());
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Desktop::the().set_system_effects(message->effects());
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Gfx::FontDatabase::set_default_font_query(message->default_font_query());
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Gfx::FontDatabase::set_fixed_width_font_query(message->fixed_width_font_query());
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Gfx::FontDatabase::set_window_title_font_query(message->window_title_font_query());
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m_client_id = message->client_id();
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}
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void ConnectionToWindowServer::fast_greet(Vector<Gfx::IntRect> const&, u32, u32, u32, Core::AnonymousBuffer const&, String const&, String const&, String const&, Vector<bool> const&, i32)
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{
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// NOTE: This message is handled in the constructor.
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}
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void ConnectionToWindowServer::update_system_theme(Core::AnonymousBuffer const& theme_buffer)
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{
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set_system_theme_from_anonymous_buffer(theme_buffer);
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Window::update_all_windows({});
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Window::for_each_window({}, [](auto& window) {
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Core::EventLoop::current().post_event(window, make<ThemeChangeEvent>());
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});
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Application::the()->dispatch_event(*make<ThemeChangeEvent>());
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}
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void ConnectionToWindowServer::update_system_fonts(String const& default_font_query, String const& fixed_width_font_query, String const& window_title_font_query)
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{
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Gfx::FontDatabase::set_default_font_query(default_font_query);
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Gfx::FontDatabase::set_fixed_width_font_query(fixed_width_font_query);
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Gfx::FontDatabase::set_window_title_font_query(window_title_font_query);
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Window::update_all_windows({});
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Window::for_each_window({}, [](auto& window) {
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Core::EventLoop::current().post_event(window, make<FontsChangeEvent>());
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});
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}
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void ConnectionToWindowServer::update_system_effects(Vector<bool> const& effects)
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{
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Desktop::the().set_system_effects(effects);
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}
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void ConnectionToWindowServer::paint(i32 window_id, Gfx::IntSize const& window_size, Vector<Gfx::IntRect> const& rects)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<MultiPaintEvent>(rects, window_size));
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}
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void ConnectionToWindowServer::window_resized(i32 window_id, Gfx::IntRect const& new_rect)
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{
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if (auto* window = Window::from_window_id(window_id)) {
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Core::EventLoop::current().post_event(*window, make<ResizeEvent>(new_rect.size()));
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}
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}
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void ConnectionToWindowServer::window_moved(i32 window_id, Gfx::IntRect const& new_rect)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<MoveEvent>(new_rect.location()));
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}
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void ConnectionToWindowServer::window_activated(i32 window_id)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<Event>(Event::WindowBecameActive));
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}
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void ConnectionToWindowServer::window_deactivated(i32 window_id)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<Event>(Event::WindowBecameInactive));
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}
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void ConnectionToWindowServer::window_input_preempted(i32 window_id)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<Event>(Event::WindowInputPreempted));
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}
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void ConnectionToWindowServer::window_input_restored(i32 window_id)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<Event>(Event::WindowInputRestored));
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}
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void ConnectionToWindowServer::window_close_request(i32 window_id)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<Event>(Event::WindowCloseRequest));
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}
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void ConnectionToWindowServer::window_entered(i32 window_id)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<Event>(Event::WindowEntered));
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}
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void ConnectionToWindowServer::window_left(i32 window_id)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<Event>(Event::WindowLeft));
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}
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static Action* action_for_shortcut(Window& window, Shortcut const& shortcut)
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{
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if (!shortcut.is_valid())
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return nullptr;
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dbgln_if(KEYBOARD_SHORTCUTS_DEBUG, "Looking up action for {}", shortcut.to_string());
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for (auto* widget = window.focused_widget(); widget; widget = widget->parent_widget()) {
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if (auto* action = widget->action_for_shortcut(shortcut)) {
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dbgln_if(KEYBOARD_SHORTCUTS_DEBUG, " > Focused widget {} gave action: {} {} (enabled: {}, shortcut: {}, alt-shortcut: {})", *widget, action, action->text(), action->is_enabled(), action->shortcut().to_string(), action->alternate_shortcut().to_string());
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return action;
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}
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}
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if (auto* action = window.action_for_shortcut(shortcut)) {
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dbgln_if(KEYBOARD_SHORTCUTS_DEBUG, " > Asked window {}, got action: {} {} (enabled: {}, shortcut: {}, alt-shortcut: {})", window, action, action->text(), action->is_enabled(), action->shortcut().to_string(), action->alternate_shortcut().to_string());
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return action;
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}
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// NOTE: Application-global shortcuts are ignored while a blocking modal window is up.
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if (!window.is_blocking() && !window.is_popup()) {
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if (auto* action = Application::the()->action_for_shortcut(shortcut)) {
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dbgln_if(KEYBOARD_SHORTCUTS_DEBUG, " > Asked application, got action: {} {} (enabled: {}, shortcut: {}, alt-shortcut: {})", action, action->text(), action->is_enabled(), action->shortcut().to_string(), action->alternate_shortcut().to_string());
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return action;
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}
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}
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return nullptr;
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}
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void ConnectionToWindowServer::key_down(i32 window_id, u32 code_point, u32 key, u32 modifiers, u32 scancode)
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{
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auto* window = Window::from_window_id(window_id);
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if (!window)
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return;
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auto key_event = make<KeyEvent>(Event::KeyDown, (KeyCode)key, modifiers, code_point, scancode);
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bool focused_widget_accepts_emoji_input = window->focused_widget() && window->focused_widget()->on_emoji_input;
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if (!window->blocks_emoji_input() && focused_widget_accepts_emoji_input && (modifiers == (Mod_Ctrl | Mod_Alt)) && key == Key_Space) {
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auto emoji_input_dialog = EmojiInputDialog::construct(window);
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if (emoji_input_dialog->exec() != EmojiInputDialog::ExecResult::OK)
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return;
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window->focused_widget()->on_emoji_input(emoji_input_dialog->selected_emoji_text());
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return;
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}
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Core::EventLoop::current().post_event(*window, move(key_event));
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}
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void ConnectionToWindowServer::key_up(i32 window_id, u32 code_point, u32 key, u32 modifiers, u32 scancode)
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{
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auto* window = Window::from_window_id(window_id);
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if (!window)
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return;
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auto key_event = make<KeyEvent>(Event::KeyUp, (KeyCode)key, modifiers, code_point, scancode);
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Core::EventLoop::current().post_event(*window, move(key_event));
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}
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static MouseButton to_mouse_button(u32 button)
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{
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switch (button) {
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case 0:
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return MouseButton::None;
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case 1:
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return MouseButton::Primary;
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case 2:
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return MouseButton::Secondary;
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case 4:
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return MouseButton::Middle;
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case 8:
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return MouseButton::Backward;
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case 16:
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return MouseButton::Forward;
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default:
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VERIFY_NOT_REACHED();
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break;
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}
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}
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void ConnectionToWindowServer::mouse_down(i32 window_id, Gfx::IntPoint const& mouse_position, u32 button, u32 buttons, u32 modifiers, i32 wheel_delta_x, i32 wheel_delta_y, i32 wheel_raw_delta_x, i32 wheel_raw_delta_y)
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{
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auto* window = Window::from_window_id(window_id);
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if (!window)
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return;
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auto mouse_event = make<MouseEvent>(Event::MouseDown, mouse_position, buttons, to_mouse_button(button), modifiers, wheel_delta_x, wheel_delta_y, wheel_raw_delta_x, wheel_raw_delta_y);
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if (auto* action = action_for_shortcut(*window, Shortcut(mouse_event->modifiers(), mouse_event->button()))) {
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if (action->is_enabled()) {
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action->flash_menubar_menu(*window);
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action->activate();
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return;
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}
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if (action->swallow_key_event_when_disabled())
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return;
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}
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Core::EventLoop::current().post_event(*window, move(mouse_event));
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}
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void ConnectionToWindowServer::mouse_up(i32 window_id, Gfx::IntPoint const& mouse_position, u32 button, u32 buttons, u32 modifiers, i32 wheel_delta_x, i32 wheel_delta_y, i32 wheel_raw_delta_x, i32 wheel_raw_delta_y)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<MouseEvent>(Event::MouseUp, mouse_position, buttons, to_mouse_button(button), modifiers, wheel_delta_x, wheel_delta_y, wheel_raw_delta_x, wheel_raw_delta_y));
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}
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void ConnectionToWindowServer::mouse_move(i32 window_id, Gfx::IntPoint const& mouse_position, u32 button, u32 buttons, u32 modifiers, i32 wheel_delta_x, i32 wheel_delta_y, i32 wheel_raw_delta_x, i32 wheel_raw_delta_y, bool is_drag, Vector<String> const& mime_types)
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{
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if (auto* window = Window::from_window_id(window_id)) {
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if (is_drag)
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Core::EventLoop::current().post_event(*window, make<DragEvent>(Event::DragMove, mouse_position, mime_types));
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else
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Core::EventLoop::current().post_event(*window, make<MouseEvent>(Event::MouseMove, mouse_position, buttons, to_mouse_button(button), modifiers, wheel_delta_x, wheel_delta_y, wheel_raw_delta_x, wheel_raw_delta_y));
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}
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}
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void ConnectionToWindowServer::mouse_double_click(i32 window_id, Gfx::IntPoint const& mouse_position, u32 button, u32 buttons, u32 modifiers, i32 wheel_delta_x, i32 wheel_delta_y, i32 wheel_raw_delta_x, i32 wheel_raw_delta_y)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<MouseEvent>(Event::MouseDoubleClick, mouse_position, buttons, to_mouse_button(button), modifiers, wheel_delta_x, wheel_delta_y, wheel_raw_delta_x, wheel_raw_delta_y));
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}
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void ConnectionToWindowServer::mouse_wheel(i32 window_id, Gfx::IntPoint const& mouse_position, u32 button, u32 buttons, u32 modifiers, i32 wheel_delta_x, i32 wheel_delta_y, i32 wheel_raw_delta_x, i32 wheel_raw_delta_y)
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{
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if (auto* window = Window::from_window_id(window_id))
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Core::EventLoop::current().post_event(*window, make<MouseEvent>(Event::MouseWheel, mouse_position, buttons, to_mouse_button(button), modifiers, wheel_delta_x, wheel_delta_y, wheel_raw_delta_x, wheel_raw_delta_y));
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}
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void ConnectionToWindowServer::menu_visibility_did_change(i32 menu_id, bool visible)
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{
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auto* menu = Menu::from_menu_id(menu_id);
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if (!menu) {
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dbgln("EventLoop received visibility change event for invalid menu ID {}", menu_id);
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return;
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}
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menu->visibility_did_change({}, visible);
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}
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void ConnectionToWindowServer::menu_item_activated(i32 menu_id, u32 identifier)
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{
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auto* menu = Menu::from_menu_id(menu_id);
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if (!menu) {
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dbgln("EventLoop received event for invalid menu ID {}", menu_id);
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return;
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}
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if (auto* action = menu->action_at(identifier))
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action->activate(menu);
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}
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void ConnectionToWindowServer::menu_item_entered(i32 menu_id, u32 identifier)
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{
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auto* menu = Menu::from_menu_id(menu_id);
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if (!menu) {
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dbgln("ConnectionToWindowServer received MenuItemEntered for invalid menu ID {}", menu_id);
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return;
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}
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auto* action = menu->action_at(identifier);
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if (!action)
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return;
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auto* app = Application::the();
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if (!app)
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return;
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Core::EventLoop::current().post_event(*app, make<ActionEvent>(GUI::Event::ActionEnter, *action));
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}
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void ConnectionToWindowServer::menu_item_left(i32 menu_id, u32 identifier)
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{
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auto* menu = Menu::from_menu_id(menu_id);
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if (!menu) {
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dbgln("ConnectionToWindowServer received MenuItemLeft for invalid menu ID {}", menu_id);
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return;
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}
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auto* action = menu->action_at(identifier);
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if (!action)
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return;
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auto* app = Application::the();
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if (!app)
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return;
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Core::EventLoop::current().post_event(*app, make<ActionEvent>(GUI::Event::ActionLeave, *action));
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}
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void ConnectionToWindowServer::screen_rects_changed(Vector<Gfx::IntRect> const& rects, u32 main_screen_index, u32 workspace_rows, u32 workspace_columns)
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{
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Desktop::the().did_receive_screen_rects({}, rects, main_screen_index, workspace_rows, workspace_columns);
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Window::for_each_window({}, [&](auto& window) {
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Core::EventLoop::current().post_event(window, make<ScreenRectsChangeEvent>(rects, main_screen_index));
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});
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}
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void ConnectionToWindowServer::applet_area_rect_changed(Gfx::IntRect const& rect)
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{
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Window::for_each_window({}, [&](auto& window) {
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Core::EventLoop::current().post_event(window, make<AppletAreaRectChangeEvent>(rect));
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});
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}
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void ConnectionToWindowServer::drag_dropped(i32 window_id, Gfx::IntPoint const& mouse_position, String const& text, HashMap<String, ByteBuffer> const& mime_data)
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{
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if (auto* window = Window::from_window_id(window_id)) {
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auto mime_data_obj = Core::MimeData::construct(mime_data);
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Core::EventLoop::current().post_event(*window, make<DropEvent>(mouse_position, text, mime_data_obj));
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}
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}
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void ConnectionToWindowServer::drag_accepted()
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{
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DragOperation::notify_accepted({});
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}
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void ConnectionToWindowServer::drag_cancelled()
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{
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DragOperation::notify_cancelled({});
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Application::the()->notify_drag_cancelled({});
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}
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void ConnectionToWindowServer::window_state_changed(i32 window_id, bool minimized, bool maximized, bool occluded)
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{
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if (auto* window = Window::from_window_id(window_id))
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window->notify_state_changed({}, minimized, maximized, occluded);
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}
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void ConnectionToWindowServer::display_link_notification()
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{
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if (m_display_link_notification_pending)
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return;
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m_display_link_notification_pending = true;
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deferred_invoke([this] {
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DisplayLink::notify({});
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m_display_link_notification_pending = false;
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});
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}
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void ConnectionToWindowServer::track_mouse_move(Gfx::IntPoint const& mouse_position)
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{
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MouseTracker::track_mouse_move({}, mouse_position);
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}
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void ConnectionToWindowServer::ping()
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{
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async_pong();
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}
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}
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