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serenity/Userland/Services/WindowServer/Window.cpp
Liav A 60a96b3786 Userland: Actually use the correct character map index from KeyEvent 
Instead of using a scan code, which for scan code set 2 will not
represent the expected character mapping index, we could just use
another variable in the KeyEvent structure that correctly points to the
character index.

This change is mostly relevant to the KeyboardMapper application, and
also to the WindowServer code, as both handle KeyEvents and need to
use the character mapping index in various situations.
2023-12-29 16:40:59 +01:00

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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2023, David Ganz <david.g.ganz@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "Window.h"
#include "Animation.h"
#include "AppletManager.h"
#include "Compositor.h"
#include "ConnectionFromClient.h"
#include "Event.h"
#include "EventLoop.h"
#include "Screen.h"
#include "WindowManager.h"
#include <AK/Badge.h>
#include <AK/CharacterTypes.h>
#include <AK/Debug.h>
#include <LibCore/Account.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <LibCore/SessionManagement.h>
#include <LibKeyboard/CharacterMap.h>
namespace WindowServer {
static ByteString default_window_icon_path()
{
return "/res/icons/16x16/window.png";
}
static Gfx::Bitmap& default_window_icon()
{
static RefPtr<Gfx::Bitmap> s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file(default_window_icon_path()).release_value_but_fixme_should_propagate_errors();
return *s_icon;
}
static Gfx::Bitmap& minimize_icon()
{
static RefPtr<Gfx::Bitmap> s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/downward-triangle.png"sv).release_value_but_fixme_should_propagate_errors();
return *s_icon;
}
static Gfx::Bitmap& maximize_icon()
{
static RefPtr<Gfx::Bitmap> s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/upward-triangle.png"sv).release_value_but_fixme_should_propagate_errors();
return *s_icon;
}
static Gfx::Bitmap& restore_icon()
{
static RefPtr<Gfx::Bitmap> s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-restore.png"sv).release_value_but_fixme_should_propagate_errors();
return *s_icon;
}
static Gfx::Bitmap& close_icon()
{
static RefPtr<Gfx::Bitmap> s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-close.png"sv).release_value_but_fixme_should_propagate_errors();
return *s_icon;
}
static Gfx::Bitmap& pin_icon()
{
static RefPtr<Gfx::Bitmap> s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-pin.png"sv).release_value_but_fixme_should_propagate_errors();
return *s_icon;
}
static Gfx::Bitmap& move_icon()
{
static RefPtr<Gfx::Bitmap> s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/move.png"sv).release_value_but_fixme_should_propagate_errors();
return *s_icon;
}
Window::Window(Core::EventReceiver& parent, WindowType type)
: Core::EventReceiver(&parent)
, m_type(type)
, m_icon(default_window_icon())
, m_frame(*this)
{
WindowManager::the().add_window(*this);
frame().window_was_constructed({});
}
Window::Window(ConnectionFromClient& client, WindowType window_type, WindowMode window_mode, int window_id, int process_id, bool minimizable, bool closeable, bool frameless, bool resizable, bool fullscreen, Window* parent_window)
: Core::EventReceiver(&client)
, m_client(&client)
, m_type(window_type)
, m_mode(window_mode)
, m_minimizable(minimizable)
, m_closeable(closeable)
, m_frameless(frameless)
, m_resizable(resizable)
, m_fullscreen(fullscreen)
, m_window_id(window_id)
, m_client_id(client.client_id())
, m_icon(default_window_icon())
, m_frame(*this)
, m_process_id(process_id)
{
if (parent_window)
set_parent_window(*parent_window);
if (!is_frameless() && type() == WindowType::Normal) {
if (auto title_username_maybe = compute_title_username(&client); !title_username_maybe.is_error())
m_title_username = title_username_maybe.release_value();
}
WindowManager::the().add_window(*this);
frame().window_was_constructed({});
}
Window::~Window()
{
// Detach from client at the start of teardown since we don't want
// to confuse things by trying to send messages to it.
m_client = nullptr;
WindowManager::the().remove_window(*this);
}
void Window::destroy()
{
m_destroyed = true;
set_visible(false);
}
void Window::set_title(ByteString const& title)
{
if (m_title == title)
return;
m_title = title;
frame().invalidate_titlebar();
WindowManager::the().notify_title_changed(*this);
}
void Window::set_rect(Gfx::IntRect const& rect)
{
if (m_rect == rect)
return;
auto old_rect = m_rect;
m_rect = rect;
if (!m_should_show_window_content) {
m_rect.set_height(0);
}
if (rect.is_empty()) {
m_backing_store = nullptr;
} else if (is_internal() && (!m_backing_store || old_rect.size() != rect.size())) {
auto format = has_alpha_channel() ? Gfx::BitmapFormat::BGRA8888 : Gfx::BitmapFormat::BGRx8888;
m_backing_store = Gfx::Bitmap::create(format, m_rect.size()).release_value_but_fixme_should_propagate_errors();
m_backing_store_visible_size = m_rect.size();
}
if (m_floating_rect.is_empty())
m_floating_rect = rect;
invalidate(true, old_rect.size() != rect.size());
m_frame.window_rect_changed(old_rect, rect);
invalidate_last_rendered_screen_rects();
}
void Window::set_rect_without_repaint(Gfx::IntRect const& rect)
{
VERIFY(rect.width() >= 0 && rect.height() >= 0);
if (m_rect == rect)
return;
auto old_rect = m_rect;
m_rect = rect;
invalidate(true, old_rect.size() != rect.size());
m_frame.window_rect_changed(old_rect, rect);
invalidate_last_rendered_screen_rects();
}
bool Window::apply_minimum_size(Gfx::IntRect& rect)
{
int new_width = max(m_minimum_size.width(), rect.width());
int new_height = max(m_minimum_size.height(), rect.height());
bool did_size_clamp = new_width != rect.width() || new_height != rect.height();
rect.set_width(new_width);
rect.set_height(new_height);
return did_size_clamp;
}
void Window::set_minimum_size(Gfx::IntSize size)
{
VERIFY(size.width() >= 0 && size.height() >= 0);
if (m_minimum_size == size)
return;
m_minimum_size = size;
}
void Window::handle_mouse_event(MouseEvent const& event)
{
set_automatic_cursor_tracking_enabled(event.buttons() != 0);
switch (event.type()) {
case Event::MouseMove:
m_client->async_mouse_move(m_window_id, event.position(), (u32)event.button(), event.buttons(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y(), event.wheel_raw_delta_x(), event.wheel_raw_delta_y(), event.is_drag(), event.mime_types());
break;
case Event::MouseDown:
m_client->async_mouse_down(m_window_id, event.position(), (u32)event.button(), event.buttons(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y(), event.wheel_raw_delta_x(), event.wheel_raw_delta_y());
break;
case Event::MouseDoubleClick:
m_client->async_mouse_double_click(m_window_id, event.position(), (u32)event.button(), event.buttons(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y(), event.wheel_raw_delta_x(), event.wheel_raw_delta_y());
break;
case Event::MouseUp:
m_client->async_mouse_up(m_window_id, event.position(), (u32)event.button(), event.buttons(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y(), event.wheel_raw_delta_x(), event.wheel_raw_delta_y());
break;
case Event::MouseWheel:
m_client->async_mouse_wheel(m_window_id, event.position(), (u32)event.button(), event.buttons(), event.modifiers(), event.wheel_delta_x(), event.wheel_delta_y(), event.wheel_raw_delta_x(), event.wheel_raw_delta_y());
break;
default:
VERIFY_NOT_REACHED();
}
}
void Window::update_window_menu_items()
{
if (!m_window_menu)
return;
m_window_menu_minimize_item->set_text(m_minimized_state != WindowMinimizedState::None ? "&Unminimize" : "Mi&nimize");
m_window_menu_minimize_item->set_enabled(m_minimizable && !is_modal());
m_window_menu_maximize_item->set_text(is_maximized() ? "&Restore" : "Ma&ximize");
m_window_menu_maximize_item->set_enabled(m_resizable);
m_window_menu_close_item->set_enabled(m_closeable);
m_window_menu_move_item->set_enabled(m_minimized_state == WindowMinimizedState::None && !is_maximized() && !m_fullscreen);
if (m_window_menu_always_on_top_item)
m_window_menu_always_on_top_item->set_checked(m_always_on_top);
m_window_menu->update_alt_shortcuts_for_items();
}
void Window::set_minimized(bool minimized)
{
if ((m_minimized_state != WindowMinimizedState::None) == minimized)
return;
if (minimized && !m_minimizable)
return;
m_minimized_state = minimized ? WindowMinimizedState::Minimized : WindowMinimizedState::None;
update_window_menu_items();
if (!blocking_modal_window())
start_minimize_animation();
if (!minimized)
request_update({ {}, size() });
// Since a minimized window won't be visible we need to invalidate the last rendered
// rectangles before the next occlusion calculation
invalidate_last_rendered_screen_rects_now();
WindowManager::the().notify_minimization_state_changed(*this);
}
void Window::set_hidden(bool hidden)
{
if ((m_minimized_state != WindowMinimizedState::None) == hidden)
return;
if (hidden && !m_minimizable)
return;
m_minimized_state = hidden ? WindowMinimizedState::Hidden : WindowMinimizedState::None;
update_window_menu_items();
Compositor::the().invalidate_occlusions();
Compositor::the().invalidate_screen(frame().render_rect());
if (!blocking_modal_window())
start_minimize_animation();
if (!hidden)
request_update({ {}, size() });
WindowManager::the().notify_minimization_state_changed(*this);
}
void Window::set_minimizable(bool minimizable)
{
if (m_minimizable == minimizable)
return;
m_minimizable = minimizable;
update_window_menu_items();
// TODO: Hide/show (or alternatively change enabled state of) window minimize button dynamically depending on value of m_minimizable
}
void Window::set_closeable(bool closeable)
{
if (m_closeable == closeable)
return;
m_closeable = closeable;
update_window_menu_items();
}
void Window::set_taskbar_rect(Gfx::IntRect const& rect)
{
if (m_taskbar_rect == rect)
return;
m_taskbar_rect = rect;
}
static Gfx::IntRect interpolate_rect(Gfx::IntRect const& from_rect, Gfx::IntRect const& to_rect, float progress)
{
auto dx = to_rect.x() - from_rect.x();
auto dy = to_rect.y() - from_rect.y();
auto dw = to_rect.width() - from_rect.width();
auto dh = to_rect.height() - from_rect.height();
return Gfx::IntRect {
from_rect.x() + ((float)dx * progress),
from_rect.y() + ((float)dy * progress),
from_rect.width() + ((float)dw * progress),
from_rect.height() + ((float)dh * progress),
};
}
void Window::start_minimize_animation()
{
if (&window_stack() != &WindowManager::the().current_window_stack())
return;
if (!WindowManager::the().system_effects().animate_windows())
return;
if (is_modal()) {
if (auto modeless = modeless_ancestor(); modeless) {
auto rect = modeless->taskbar_rect();
VERIFY(!rect.is_empty());
m_taskbar_rect = rect;
}
}
m_animation = Animation::create();
m_animation->set_duration(150);
m_animation->on_update = [this](float progress, Gfx::Painter& painter, Screen& screen, Gfx::DisjointIntRectSet& flush_rects) {
Gfx::PainterStateSaver saver(painter);
painter.set_draw_op(Gfx::Painter::DrawOp::Invert);
auto from_rect = is_minimized() ? frame().rect() : taskbar_rect();
auto to_rect = is_minimized() ? taskbar_rect() : frame().rect();
auto rect = interpolate_rect(from_rect, to_rect, progress);
painter.draw_rect(rect, Color::Transparent); // Color doesn't matter, we draw inverted
flush_rects.add(rect.intersected(screen.rect()));
Compositor::the().invalidate_screen(rect);
};
m_animation->on_stop = [this] {
m_animation = nullptr;
};
m_animation->start();
}
void Window::start_launch_animation(Gfx::IntRect const& launch_origin_rect)
{
if (&window_stack() != &WindowManager::the().current_window_stack())
return;
if (!WindowManager::the().system_effects().animate_windows())
return;
m_animation = Animation::create();
m_animation->set_duration(150);
m_animation->on_update = [this, launch_origin_rect](float progress, Gfx::Painter& painter, Screen& screen, Gfx::DisjointIntRectSet& flush_rects) {
Gfx::PainterStateSaver saver(painter);
painter.set_draw_op(Gfx::Painter::DrawOp::Invert);
auto rect = interpolate_rect(launch_origin_rect, frame().rect(), progress);
painter.draw_rect(rect, Color::Transparent); // Color doesn't matter, we draw inverted
flush_rects.add(rect.intersected(screen.rect()));
Compositor::the().invalidate_screen(rect);
};
m_animation->on_stop = [this] {
m_animation = nullptr;
};
m_animation->start();
}
void Window::set_has_alpha_channel(bool value)
{
if (m_has_alpha_channel == value)
return;
m_has_alpha_channel = value;
Compositor::the().invalidate_occlusions();
}
void Window::set_occluded(bool occluded)
{
if (m_occluded == occluded)
return;
m_occluded = occluded;
WindowManager::the().notify_occlusion_state_changed(*this);
}
void Window::set_maximized(bool maximized)
{
if (is_maximized() == maximized)
return;
if (maximized && (!is_resizable() || resize_aspect_ratio().has_value()))
return;
m_tile_type = maximized ? WindowTileType::Maximized : WindowTileType::None;
update_window_menu_items();
if (maximized) {
exit_roll_up_mode();
set_rect(WindowManager::the().tiled_window_rect(*this));
} else {
exit_roll_up_mode();
set_rect(m_floating_rect);
}
m_frame.did_set_maximized({}, maximized);
send_resize_event_to_client();
send_move_event_to_client();
set_default_positioned(false);
WindowManager::the().notify_minimization_state_changed(*this);
}
void Window::set_always_on_top(bool always_on_top)
{
if (m_always_on_top == always_on_top)
return;
m_always_on_top = always_on_top;
update_window_menu_items();
window_stack().move_always_on_top_windows_to_front();
Compositor::the().invalidate_occlusions();
}
void Window::set_resizable(bool resizable)
{
if (m_resizable == resizable)
return;
m_resizable = resizable;
update_window_menu_items();
// TODO: Hide/show (or alternatively change enabled state of) window maximize button dynamically depending on value of is_resizable()
}
void Window::event(Core::Event& event)
{
if (is_internal()) {
VERIFY(parent());
event.ignore();
return;
}
if (blocking_modal_window() && type() != WindowType::Popup) {
// Allow windows to process their inactivity after being blocked
if (event.type() != Event::WindowDeactivated && event.type() != Event::WindowInputPreempted)
return;
}
if (static_cast<Event&>(event).is_mouse_event())
return handle_mouse_event(static_cast<MouseEvent const&>(event));
switch (event.type()) {
case Event::WindowEntered:
m_client->async_window_entered(m_window_id);
break;
case Event::WindowLeft:
m_client->async_window_left(m_window_id);
break;
case Event::KeyDown:
handle_keydown_event(static_cast<KeyEvent const&>(event));
break;
case Event::KeyUp:
m_client->async_key_up(m_window_id,
(u32) static_cast<KeyEvent const&>(event).code_point(),
(u32) static_cast<KeyEvent const&>(event).key(),
(u8) static_cast<KeyEvent const&>(event).map_entry_index(),
static_cast<KeyEvent const&>(event).modifiers(),
(u32) static_cast<KeyEvent const&>(event).scancode());
break;
case Event::WindowActivated:
m_client->async_window_activated(m_window_id);
break;
case Event::WindowDeactivated:
m_client->async_window_deactivated(m_window_id);
break;
case Event::WindowInputPreempted:
m_client->async_window_input_preempted(m_window_id);
break;
case Event::WindowInputRestored:
m_client->async_window_input_restored(m_window_id);
break;
case Event::WindowCloseRequest:
m_client->async_window_close_request(m_window_id);
break;
case Event::WindowResized:
m_client->async_window_resized(m_window_id, static_cast<ResizeEvent const&>(event).rect());
break;
case Event::WindowMoved:
m_client->async_window_moved(m_window_id, static_cast<MoveEvent const&>(event).rect());
break;
default:
break;
}
}
void Window::handle_keydown_event(KeyEvent const& event)
{
if (event.modifiers() == Mod_Alt && event.key() == Key_Space && type() == WindowType::Normal && !is_frameless()) {
auto position = frame().titlebar_rect().bottom_left().moved_up(1).translated(frame().rect().location());
popup_window_menu(position, WindowMenuDefaultAction::Close);
return;
}
if (event.modifiers() == Mod_Alt && event.code_point() && m_menubar.has_menus()) {
// When handling alt shortcuts, we only care about the key that has been pressed in addition
// to alt, not the code point that has been mapped to alt+[key], so we have to look up the
// kernel map_entry_index value directly from the "unmodified" character map.
auto character_map_or_error = Keyboard::CharacterMap::fetch_system_map();
if (!character_map_or_error.is_error()) {
auto& character_map = character_map_or_error.value();
auto index = event.map_entry_index();
if (index != 0xff) {
u32 character = to_ascii_lowercase(character_map.character_map_data().map[index]);
Menu* menu_to_open = nullptr;
m_menubar.for_each_menu([&](Menu& menu) {
if (to_ascii_lowercase(menu.alt_shortcut_character()) == character) {
menu_to_open = &menu;
return IterationDecision::Break;
}
return IterationDecision::Continue;
});
if (menu_to_open) {
frame().open_menubar_menu(*menu_to_open);
if (!menu_to_open->is_empty())
menu_to_open->set_hovered_index(0);
return;
}
}
}
}
m_client->async_key_down(m_window_id, (u32)event.code_point(), (u32)event.key(), (u8)event.map_entry_index(), event.modifiers(), (u32)event.scancode());
}
void Window::set_visible(bool b)
{
if (m_visible == b)
return;
m_visible = b;
WindowManager::the().reevaluate_hover_state_for_window(this);
if (!m_visible)
WindowManager::the().check_hide_geometry_overlay(*this);
Compositor::the().invalidate_occlusions();
if (m_visible) {
invalidate(true);
} else {
// Since the window won't be visible we need to invalidate the last rendered
// rectangles before the next occlusion calculation
invalidate_last_rendered_screen_rects_now();
}
}
void Window::set_frameless(bool frameless)
{
if (m_frameless == frameless)
return;
m_frameless = frameless;
if (m_visible) {
Compositor::the().invalidate_occlusions();
invalidate(true, true);
invalidate_last_rendered_screen_rects();
}
}
void Window::invalidate(bool invalidate_frame, bool re_render_frame)
{
m_invalidated = true;
m_invalidated_all = true;
if (invalidate_frame && !m_invalidated_frame) {
m_invalidated_frame = true;
}
if (re_render_frame)
frame().set_dirty(true);
m_dirty_rects.clear();
Compositor::the().invalidate_window();
}
void Window::invalidate(Gfx::IntRect const& rect, bool invalidate_frame)
{
if (type() == WindowType::Applet) {
AppletManager::the().invalidate_applet(*this, rect);
return;
}
if (invalidate_no_notify(rect, invalidate_frame))
Compositor::the().invalidate_window();
}
bool Window::invalidate_no_notify(Gfx::IntRect const& rect, bool invalidate_frame)
{
if (rect.is_empty())
return false;
if (m_invalidated_all) {
if (invalidate_frame)
m_invalidated_frame |= true;
return false;
}
auto outer_rect = frame().render_rect();
auto inner_rect = rect;
inner_rect.translate_by(position());
// FIXME: This seems slightly wrong; the inner rect shouldn't intersect the border part of the outer rect.
inner_rect.intersect(outer_rect);
if (inner_rect.is_empty())
return false;
m_invalidated = true;
if (invalidate_frame)
m_invalidated_frame |= true;
m_dirty_rects.add(inner_rect.translated(-outer_rect.location()));
return true;
}
void Window::invalidate_last_rendered_screen_rects()
{
m_invalidate_last_render_rects = true;
Compositor::the().invalidate_occlusions();
}
void Window::invalidate_last_rendered_screen_rects_now()
{
// We can't wait for the next occlusion computation because the window will either no longer
// be around or won't be visible anymore. So we need to invalidate the last rendered rects now.
if (!m_opaque_rects.is_empty())
Compositor::the().invalidate_screen(m_opaque_rects);
if (!m_transparency_rects.is_empty())
Compositor::the().invalidate_screen(m_transparency_rects);
m_invalidate_last_render_rects = false;
Compositor::the().invalidate_occlusions();
}
void Window::refresh_client_size()
{
client()->async_window_resized(m_window_id, m_rect);
}
void Window::prepare_dirty_rects()
{
if (m_invalidated_all) {
if (m_invalidated_frame)
m_dirty_rects = frame().render_rect();
else
m_dirty_rects = rect();
} else {
m_dirty_rects.move_by(frame().render_rect().location());
if (m_invalidated_frame) {
if (m_invalidated) {
m_dirty_rects.add(frame().render_rect());
} else {
for (auto& rects : frame().render_rect().shatter(rect()))
m_dirty_rects.add(rects);
}
}
}
}
void Window::clear_dirty_rects()
{
m_invalidated_all = false;
m_invalidated_frame = false;
m_invalidated = false;
m_dirty_rects.clear_with_capacity();
}
bool Window::is_active() const
{
VERIFY(m_window_stack);
return m_window_stack->active_window() == this;
}
Window* Window::blocking_modal_window()
{
auto maybe_blocker = WindowManager::the().for_each_window_in_modal_chain(*this, [&](auto& window) {
if (parent_window() == window.parent_window() && is_blocking())
return IterationDecision::Continue;
if (is_descendant_of(window))
return IterationDecision::Continue;
if (window.is_blocking() && this != &window)
return IterationDecision::Break;
return IterationDecision::Continue;
});
return maybe_blocker;
}
void Window::set_default_icon()
{
m_icon = default_window_icon();
}
void Window::request_update(Gfx::IntRect const& rect, bool ignore_occlusion)
{
if (rect.is_empty())
return;
if (m_pending_paint_rects.is_empty()) {
deferred_invoke([this, ignore_occlusion] {
client()->post_paint_message(*this, ignore_occlusion);
});
}
m_pending_paint_rects.add(rect);
}
void Window::ensure_window_menu()
{
if (!m_window_menu) {
m_window_menu = Menu::construct(nullptr, -1, "(Window Menu)"_string);
m_window_menu->set_window_menu_of(*this);
auto minimize_item = make<MenuItem>(*m_window_menu, (unsigned)WindowMenuAction::MinimizeOrUnminimize, "");
m_window_menu_minimize_item = minimize_item.ptr();
m_window_menu->add_item(move(minimize_item));
auto maximize_item = make<MenuItem>(*m_window_menu, (unsigned)WindowMenuAction::MaximizeOrRestore, "");
m_window_menu_maximize_item = maximize_item.ptr();
m_window_menu->add_item(move(maximize_item));
auto move_item = make<MenuItem>(*m_window_menu, (unsigned)WindowMenuAction::Move, "&Move");
m_window_menu_move_item = move_item.ptr();
m_window_menu_move_item->set_icon(&move_icon());
m_window_menu->add_item(move(move_item));
m_window_menu->add_item(make<MenuItem>(*m_window_menu, MenuItem::Type::Separator));
auto roll_up_item = make<MenuItem>(*m_window_menu, (unsigned)WindowMenuAction::ToggleWindowRollUp, "&Roll Up");
m_window_menu_roll_up_item = roll_up_item.ptr();
m_window_menu_roll_up_item->set_checked(!m_should_show_window_content);
roll_up_item->set_checkable(true);
m_window_menu->add_item(move(roll_up_item));
auto menubar_visibility_item = make<MenuItem>(*m_window_menu, (unsigned)WindowMenuAction::ToggleMenubarVisibility, "Menu &Bar");
m_window_menu_menubar_visibility_item = menubar_visibility_item.ptr();
menubar_visibility_item->set_checkable(true);
m_window_menu->add_item(move(menubar_visibility_item));
m_window_menu->add_item(make<MenuItem>(*m_window_menu, MenuItem::Type::Separator));
if (!is_modal()) {
auto pin_item = make<MenuItem>(*m_window_menu, (unsigned)WindowMenuAction::ToggleAlwaysOnTop, "Always on &Top");
m_window_menu_always_on_top_item = pin_item.ptr();
m_window_menu_always_on_top_item->set_icon(&pin_icon());
m_window_menu_always_on_top_item->set_checkable(true);
m_window_menu->add_item(move(pin_item));
m_window_menu->add_item(make<MenuItem>(*m_window_menu, MenuItem::Type::Separator));
}
auto add_to_quick_launch_item = make<MenuItem>(*m_window_menu, (unsigned)WindowMenuAction::AddToQuickLaunch, "&Add to Quick Launch");
m_window_menu_add_to_quick_launch_item = add_to_quick_launch_item.ptr();
m_window_menu_add_to_quick_launch_item->set_icon(&pin_icon());
m_window_menu->add_item(move(add_to_quick_launch_item));
m_window_menu->add_item(make<MenuItem>(*m_window_menu, MenuItem::Type::Separator));
auto close_item = make<MenuItem>(*m_window_menu, (unsigned)WindowMenuAction::Close, "&Close");
m_window_menu_close_item = close_item.ptr();
m_window_menu_close_item->set_icon(&close_icon());
m_window_menu_close_item->set_default(true);
m_window_menu->add_item(move(close_item));
m_window_menu->on_item_activation = [&](auto& item) {
handle_window_menu_action(static_cast<WindowMenuAction>(item.identifier()));
};
update_window_menu_items();
}
}
void Window::handle_window_menu_action(WindowMenuAction action)
{
switch (action) {
case WindowMenuAction::MinimizeOrUnminimize:
WindowManager::the().minimize_windows(*this, m_minimized_state == WindowMinimizedState::None);
if (m_minimized_state == WindowMinimizedState::None)
WindowManager::the().move_to_front_and_make_active(*this);
break;
case WindowMenuAction::MaximizeOrRestore:
WindowManager::the().maximize_windows(*this, !is_maximized());
WindowManager::the().move_to_front_and_make_active(*this);
break;
case WindowMenuAction::Move:
WindowManager::the().start_window_move(*this, ScreenInput::the().cursor_location());
break;
case WindowMenuAction::Close:
request_close();
break;
case WindowMenuAction::ToggleMenubarVisibility: {
auto& item = *m_window_menu->item_by_identifier((unsigned)action);
frame().invalidate();
item.set_checked(!item.is_checked());
m_should_show_menubar = item.is_checked();
frame().invalidate();
recalculate_rect();
invalidate_last_rendered_screen_rects();
break;
}
case WindowMenuAction::ToggleWindowRollUp: {
auto& item = *m_window_menu->item_by_identifier((unsigned)action);
frame().invalidate();
item.set_checked(!item.is_checked());
m_should_show_window_content = !item.is_checked();
if (!m_should_show_window_content) {
m_saved_before_roll_up_rect = m_rect;
m_rect.set_height(0);
} else {
m_rect.set_height(m_saved_before_roll_up_rect.height());
}
frame().invalidate();
recalculate_rect();
invalidate_last_rendered_screen_rects();
break;
}
case WindowMenuAction::ToggleAlwaysOnTop: {
auto& item = *m_window_menu->item_by_identifier((unsigned)action);
auto new_is_checked = !item.is_checked();
item.set_checked(new_is_checked);
WindowManager::the().set_always_on_top(*this, new_is_checked);
break;
}
case WindowMenuAction::AddToQuickLaunch: {
if (m_process_id.has_value())
WindowManager::the().on_add_to_quick_launch(m_process_id.value());
break;
}
}
}
void Window::popup_window_menu(Gfx::IntPoint position, WindowMenuDefaultAction default_action)
{
ensure_window_menu();
if (default_action == WindowMenuDefaultAction::BasedOnWindowState) {
// When clicked on the task bar, determine the default action
if (!is_active() && !is_minimized())
default_action = WindowMenuDefaultAction::None;
else if (is_minimized())
default_action = WindowMenuDefaultAction::Unminimize;
else
default_action = WindowMenuDefaultAction::Minimize;
}
m_window_menu_minimize_item->set_default(default_action == WindowMenuDefaultAction::Minimize || default_action == WindowMenuDefaultAction::Unminimize);
m_window_menu_minimize_item->set_icon(m_minimized_state != WindowMinimizedState::None ? nullptr : &minimize_icon());
m_window_menu_maximize_item->set_default(default_action == WindowMenuDefaultAction::Maximize || default_action == WindowMenuDefaultAction::Restore);
m_window_menu_maximize_item->set_icon(is_maximized() ? &restore_icon() : &maximize_icon());
m_window_menu_close_item->set_default(default_action == WindowMenuDefaultAction::Close);
m_window_menu_menubar_visibility_item->set_enabled(m_menubar.has_menus());
m_window_menu_menubar_visibility_item->set_checked(m_menubar.has_menus() && m_should_show_menubar);
m_window_menu->popup(position);
}
void Window::window_menu_activate_default()
{
ensure_window_menu();
m_window_menu->activate_default();
}
void Window::request_close()
{
if (is_destroyed())
return;
Event close_request(Event::WindowCloseRequest);
event(close_request);
}
void Window::set_fullscreen(bool fullscreen)
{
if (m_fullscreen == fullscreen)
return;
m_fullscreen = fullscreen;
Gfx::IntRect new_window_rect = m_rect;
if (m_fullscreen) {
m_saved_nonfullscreen_rect = m_rect;
new_window_rect = Screen::main().rect(); // TODO: We should support fullscreen on any screen
} else if (!m_saved_nonfullscreen_rect.is_empty()) {
new_window_rect = m_saved_nonfullscreen_rect;
}
set_rect(new_window_rect);
send_resize_event_to_client();
send_move_event_to_client();
}
WindowTileType Window::tile_type_based_on_rect(Gfx::IntRect const& rect) const
{
auto& window_screen = Screen::closest_to_rect(this->rect()); // based on currently used rect
auto tile_type = WindowTileType::None;
if (window_screen.rect().contains(rect)) {
auto current_tile_type = this->tile_type();
bool tiling_to_top = current_tile_type == WindowTileType::Top || current_tile_type == WindowTileType::TopLeft || current_tile_type == WindowTileType::TopRight;
bool tiling_to_bottom = current_tile_type == WindowTileType::Bottom || current_tile_type == WindowTileType::BottomLeft || current_tile_type == WindowTileType::BottomRight;
bool tiling_to_left = current_tile_type == WindowTileType::Left || current_tile_type == WindowTileType::TopLeft || current_tile_type == WindowTileType::BottomLeft;
bool tiling_to_right = current_tile_type == WindowTileType::Right || current_tile_type == WindowTileType::TopRight || current_tile_type == WindowTileType::BottomRight;
auto ideal_tiled_rect = WindowManager::the().tiled_window_rect(*this, window_screen, current_tile_type);
bool same_top = ideal_tiled_rect.top() == rect.top();
bool same_left = ideal_tiled_rect.left() == rect.left();
bool same_right = ideal_tiled_rect.right() == rect.right();
bool same_bottom = ideal_tiled_rect.bottom() == rect.bottom();
// Try to find the most suitable tile type. For example, if a window is currently tiled to the BottomRight and
// the window is resized upwards as to where it perfectly touches the screen's top border, then the more suitable
// tile type would be Right, as three sides are lined up perfectly.
if (tiling_to_top && same_top && same_left && same_right)
return WindowTileType::Top;
else if ((tiling_to_top || tiling_to_left) && same_top && same_left)
return rect.bottom() == WindowManager::the().tiled_window_rect(*this, window_screen, WindowTileType::Bottom).bottom() ? WindowTileType::Left : WindowTileType::TopLeft;
else if ((tiling_to_top || tiling_to_right) && same_top && same_right)
return rect.bottom() == WindowManager::the().tiled_window_rect(*this, window_screen, WindowTileType::Bottom).bottom() ? WindowTileType::Right : WindowTileType::TopRight;
else if (tiling_to_left && same_left && same_top && same_bottom)
return WindowTileType::Left;
else if (tiling_to_right && same_right && same_top && same_bottom)
return WindowTileType::Right;
else if (tiling_to_bottom && same_bottom && same_left && same_right)
return WindowTileType::Bottom;
else if ((tiling_to_bottom || tiling_to_left) && same_bottom && same_left)
return rect.top() == WindowManager::the().tiled_window_rect(*this, window_screen, WindowTileType::Left).top() ? WindowTileType::Left : WindowTileType::BottomLeft;
else if ((tiling_to_bottom || tiling_to_right) && same_bottom && same_right)
return rect.top() == WindowManager::the().tiled_window_rect(*this, window_screen, WindowTileType::Right).top() ? WindowTileType::Right : WindowTileType::BottomRight;
}
return tile_type;
}
void Window::check_untile_due_to_resize(Gfx::IntRect const& new_rect)
{
auto new_tile_type = tile_type_based_on_rect(new_rect);
if constexpr (RESIZE_DEBUG) {
if (new_tile_type == WindowTileType::None) {
auto current_rect = rect();
auto& window_screen = Screen::closest_to_rect(current_rect);
if (!(window_screen.rect().contains(new_rect)))
dbgln("Untiling because new rect {} does not fit into screen #{} rect {}", new_rect, window_screen.index(), window_screen.rect());
else
dbgln("Untiling because new rect {} does not touch screen #{} rect {}", new_rect, window_screen.index(), window_screen.rect());
} else if (new_tile_type != m_tile_type)
dbgln("Changing tile type from {} to {}", (int)m_tile_type, (int)new_tile_type);
}
m_tile_type = new_tile_type;
}
bool Window::set_untiled()
{
if (m_tile_type == WindowTileType::None)
return false;
VERIFY(!resize_aspect_ratio().has_value());
m_tile_type = WindowTileType::None;
tile_type_changed();
return true;
}
void Window::set_tiled(WindowTileType tile_type, Optional<Screen const&> tile_on_screen)
{
VERIFY(tile_type != WindowTileType::None);
if (m_tile_type == tile_type)
return;
if (resize_aspect_ratio().has_value())
return;
if (is_maximized())
set_maximized(false);
m_tile_type = tile_type;
tile_type_changed(tile_on_screen);
}
void Window::exit_roll_up_mode()
{
if (m_should_show_window_content)
return;
m_rect.set_height(m_saved_before_roll_up_rect.height());
m_should_show_window_content = true;
if (m_window_menu_roll_up_item)
m_window_menu_roll_up_item->set_checked(false);
}
void Window::tile_type_changed(Optional<Screen const&> tile_on_screen)
{
if (m_tile_type != WindowTileType::None) {
exit_roll_up_mode();
set_rect(WindowManager::the().tiled_window_rect(*this, tile_on_screen, m_tile_type));
} else {
set_rect(m_floating_rect);
}
send_resize_event_to_client();
send_move_event_to_client();
}
void Window::send_resize_event_to_client()
{
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(m_rect));
}
void Window::send_move_event_to_client()
{
Core::EventLoop::current().post_event(*this, make<MoveEvent>(m_rect));
}
void Window::detach_client(Badge<ConnectionFromClient>)
{
m_client = nullptr;
}
void Window::recalculate_rect()
{
if (!is_resizable())
return;
bool send_event = true;
if (is_tiled()) {
set_rect(WindowManager::the().tiled_window_rect(*this, {}, m_tile_type));
} else if (type() == WindowType::Desktop) {
set_rect(WindowManager::the().arena_rect_for_type(Screen::main(), WindowType::Desktop));
} else {
send_event = false;
}
if (send_event) {
send_resize_event_to_client();
}
}
void Window::add_child_window(Window& child_window)
{
m_child_windows.append(child_window);
}
void Window::set_parent_window(Window& parent_window)
{
VERIFY(!m_parent_window);
m_parent_window = parent_window;
parent_window.add_child_window(*this);
}
Window* Window::modeless_ancestor()
{
if (!is_modal())
return this;
for (auto parent = m_parent_window; parent; parent = parent->parent_window()) {
if (!parent->is_modal())
return parent;
}
return nullptr;
}
void Window::set_progress(Optional<int> progress)
{
if (m_progress == progress)
return;
m_progress = progress;
WindowManager::the().notify_progress_changed(*this);
}
bool Window::is_descendant_of(Window& window) const
{
for (auto* parent = parent_window(); parent; parent = parent->parent_window())
if (parent == &window)
return true;
return false;
}
Optional<HitTestResult> Window::hit_test(Gfx::IntPoint position, bool include_frame)
{
if (!m_hit_testing_enabled)
return {};
// We need to check the (possibly constrained) render rect to make sure
// we don't hit-test on a window that is constrained to a screen, but somehow
// (partially) moved into another screen where it's not rendered
if (!frame().rect().intersected(frame().render_rect()).contains(position))
return {};
if (!rect().contains(position)) {
if (include_frame)
return frame().hit_test(position);
return {};
}
bool hit = false;
u8 threshold = alpha_hit_threshold() * 255;
if (threshold == 0 || !m_backing_store || !m_backing_store->has_alpha_channel()) {
hit = true;
} else {
auto relative_point = position.translated(-rect().location()) * m_backing_store->scale();
u8 alpha = 0xff;
if (m_backing_store->rect().contains(relative_point))
alpha = m_backing_store->get_pixel(relative_point).alpha();
hit = alpha >= threshold;
}
if (!hit)
return {};
return HitTestResult {
.window = *this,
.screen_position = position,
.window_relative_position = position.translated(-rect().location()),
.is_frame_hit = false,
};
}
void Window::add_menu(Menu& menu)
{
m_menubar.add_menu(menu, rect());
Compositor::the().invalidate_occlusions();
frame().invalidate();
}
void Window::invalidate_menubar()
{
if (!m_should_show_menubar || !m_menubar.has_menus())
return;
frame().invalidate_menubar();
}
void Window::set_modified(bool modified)
{
if (m_modified == modified)
return;
m_modified = modified;
WindowManager::the().notify_modified_changed(*this);
frame().set_button_icons();
frame().invalidate_titlebar();
}
ByteString Window::computed_title() const
{
ByteString title = m_title.replace("[*]"sv, is_modified() ? " (*)"sv : ""sv, ReplaceMode::FirstOnly);
if (m_title_username.has_value())
title = ByteString::formatted("{} [{}]", title, m_title_username.value());
if (client() && client()->is_unresponsive())
return ByteString::formatted("{} (Not responding)", title);
return title;
}
ErrorOr<Optional<ByteString>> Window::compute_title_username(ConnectionFromClient* client)
{
if (!client)
return Error::from_string_literal("Tried to compute title username without a client");
auto stats = TRY(Core::ProcessStatisticsReader::get_all(true));
pid_t client_pid = TRY(client->socket().peer_pid());
auto client_stat = stats.processes.first_matching([&](auto& stat) { return stat.pid == client_pid; });
if (!client_stat.has_value())
return Error::from_string_literal("Failed to find client process stat");
pid_t login_session_pid = TRY(Core::SessionManagement::root_session_id(client_pid));
auto login_session_stat = stats.processes.first_matching([&](auto& stat) { return stat.pid == login_session_pid; });
if (!login_session_stat.has_value())
return Error::from_string_literal("Failed to find login process stat");
if (login_session_stat.value().uid == client_stat.value().uid)
return Optional<ByteString> {};
return client_stat.value().username;
}
}
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