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serenity/Userland/Services/WindowServer/Window.cpp
thankyouverycool 1dd9086e1a WindowServer: Remove misbehavior conditions for modals 
This was too restrictive and there are already UI elements that rely
on this behavior. Now Blocking modals will preempt interaction with
all windows in their modal chain except those descending from them.
Fixes crashing in FilePicker when permission is denied.
2022-08-28 16:04:35 +01:00

1062 lines
36 KiB
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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;
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)
{
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::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 (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)");
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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