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ladybird/Userland/Services/WindowServer/Window.cpp
thankyouverycool 2b2c317c2d WindowServer: Don't let modals minimize themselves 
But do allow them to remain minimizable by a parent. This is a nice
ergonomics fix to allow a parent window to quickly minimize and
restore all its modal children.
2022-08-25 13:28:50 +02:00

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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* 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>
namespace WindowServer {
static String 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::try_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::try_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::try_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::try_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::try_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::try_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::try_load_from_file("/res/icons/16x16/move.png"sv).release_value_but_fixme_should_propagate_errors();
return *s_icon;
}
Window::Window(Core::Object& parent, WindowType type)
: Core::Object(&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, bool minimizable, bool closeable, bool frameless, bool resizable, bool fullscreen, Window* parent_window)
: Core::Object(&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)
{
if (parent_window)
set_parent_window(*parent_window);
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(String 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 (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::try_create(format, m_rect.size()).release_value_but_fixme_should_propagate_errors();
}
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;
if (old_rect.size() == m_rect.size()) {
auto delta = m_rect.location() - old_rect.location();
for (auto& child_window : m_child_windows) {
if (child_window)
child_window->move_by(delta);
}
}
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 const& 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);
}
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)
{
m_taskbar_rect = rect;
m_have_taskbar_rect = !m_taskbar_rect.is_empty();
}
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 (!m_have_taskbar_rect) {
// If this is a modal window, it may not have its own taskbar
// button, so there is no rectangle. In that case, walk the
// modal stack until we find a window that may have one
WindowManager::the().for_each_window_in_modal_stack(*this, [&](Window& w, bool) {
if (w.has_taskbar_rect()) {
// We purposely do NOT set m_have_taskbar_rect to true here
// because we want to only copy the rectangle from the
// window that has it, but since this window wouldn't receive
// any updates down the road we want to query it again
// next time we want to start the animation
m_taskbar_rect = w.taskbar_rect();
VERIFY(!m_have_taskbar_rect); // should remain unset!
return IterationDecision::Break;
};
return IterationDecision::Continue;
});
}
m_animation = Animation::create();
m_animation->set_duration(150);
m_animation->on_update = [this](float progress, Gfx::Painter& painter, Screen& screen, Gfx::DisjointRectSet& 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::DisjointRectSet& 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_opacity(float opacity)
{
if (m_opacity == opacity)
return;
bool was_opaque = is_opaque();
m_opacity = opacity;
if (was_opaque != is_opaque())
Compositor::the().invalidate_occlusions();
invalidate(false);
WindowManager::the().notify_opacity_changed(*this);
}
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)
set_rect(WindowManager::the().tiled_window_rect(*this));
else
set_rect(m_floating_rect);
m_frame.did_set_maximized({}, maximized);
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(m_rect));
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()) {
// We still want to handle the WindowDeactivated event below when a new modal is
// created to notify its parent window, despite it being "blocked by modal window".
if (event.type() != Event::WindowDeactivated)
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(),
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::WindowInputEntered:
m_client->async_window_input_entered(m_window_id);
break;
case Event::WindowInputLeft:
m_client->async_window_input_left(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;
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().translated(frame().rect().location());
popup_window_menu(position, WindowMenuDefaultAction::Close);
return;
}
if (event.modifiers() == Mod_Alt && event.code_point() && m_menubar.has_menus()) {
Menu* menu_to_open = nullptr;
m_menubar.for_each_menu([&](Menu& menu) {
if (to_ascii_lowercase(menu.alt_shortcut_character()) == to_ascii_lowercase(event.code_point())) {
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(), 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 (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)");
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 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 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::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;
}
}
}
void Window::popup_window_menu(Gfx::IntPoint const& 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;
}
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(new_window_rect));
set_rect(new_window_rect);
}
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, 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, 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, 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, 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, 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;
set_rect(m_floating_rect);
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(m_rect));
return true;
}
void Window::set_tiled(WindowTileType tile_type)
{
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;
set_rect(WindowManager::the().tiled_window_rect(*this, tile_type));
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(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) {
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(m_rect));
}
}
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;
}
bool Window::is_capturing_active_input_from(Window const& window) const
{
if (!is_capturing_input())
return false;
return parent_window() == &window;
}
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 const& 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();
}
String Window::computed_title() const
{
String title = m_title.replace("[*]"sv, is_modified() ? " (*)"sv : ""sv, ReplaceMode::FirstOnly);
if (client() && client()->is_unresponsive())
return String::formatted("{} (Not responding)", title);
return title;
}
}
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