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ladybird/Userland/Services/WindowServer/Window.cpp
Andreas Kling 6a132d8672 WindowServer+LibGUI: Allow specifying a "launch origin" for new windows 
The launch_origin_rect parameter to create_window() specifies where on
screen the window was launched from. It's optional, but if you provide
it, the new window will have a short wireframe animation from the origin
to the initial window frame rect.

GUI::Window looks for the "__libgui_launch_origin_rect" environment
variable. Put your launch origin rect in there with the format
"<x>,<y>,<width>,<height>" and the first GUI::Window shown by the app
will use that as the launch origin rect.

Also it looks pretty neat, although I'm sure we can improve it. :^)
2021-06-27 19:38:11 +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 "ClientConnection.h"
#include "Compositor.h"
#include "Event.h"
#include "EventLoop.h"
#include "Screen.h"
#include "WindowManager.h"
#include <AK/Badge.h>
#include <AK/CharacterTypes.h>
#include <WindowServer/WindowClientEndpoint.h>
namespace WindowServer {
const static Gfx::IntSize s_default_normal_minimum_size = { 50, 50 };
static String default_window_icon_path()
{
return "/res/icons/16x16/window.png";
}
static Gfx::Bitmap& default_window_icon()
{
static Gfx::Bitmap* s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file(default_window_icon_path()).leak_ref();
return *s_icon;
}
static Gfx::Bitmap& minimize_icon()
{
static Gfx::Bitmap* s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/downward-triangle.png").leak_ref();
return *s_icon;
}
static Gfx::Bitmap& maximize_icon()
{
static Gfx::Bitmap* s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/upward-triangle.png").leak_ref();
return *s_icon;
}
static Gfx::Bitmap& restore_icon()
{
static Gfx::Bitmap* s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-restore.png").leak_ref();
return *s_icon;
}
static Gfx::Bitmap& close_icon()
{
static Gfx::Bitmap* s_icon;
if (!s_icon)
s_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/window-close.png").leak_ref();
return *s_icon;
}
Window::Window(Core::Object& parent, WindowType type)
: Core::Object(&parent)
, m_type(type)
, m_icon(default_window_icon())
, m_frame(*this)
{
// Set default minimum size for Normal windows
if (m_type == WindowType::Normal)
m_minimum_size = s_default_normal_minimum_size;
WindowManager::the().add_window(*this);
}
Window::Window(ClientConnection& client, WindowType window_type, int window_id, bool modal, bool minimizable, bool frameless, bool resizable, bool fullscreen, bool accessory, Window* parent_window)
: Core::Object(&client)
, m_client(&client)
, m_type(window_type)
, m_modal(modal)
, m_minimizable(minimizable)
, m_frameless(frameless)
, m_resizable(resizable)
, m_fullscreen(fullscreen)
, m_accessory(accessory)
, m_window_id(window_id)
, m_client_id(client.client_id())
, m_icon(default_window_icon())
, m_frame(*this)
{
// Set default minimum size for Normal windows
if (m_type == WindowType::Normal)
m_minimum_size = s_default_normal_minimum_size;
if (parent_window)
set_parent_window(*parent_window);
WindowManager::the().add_window(*this);
}
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(const String& title)
{
if (m_title == title)
return;
m_title = title;
frame().invalidate_titlebar();
WindowManager::the().notify_title_changed(*this);
}
void Window::set_rect(const Gfx::IntRect& rect)
{
if (m_rect == rect)
return;
auto old_rect = m_rect;
m_rect = rect;
if (rect.is_empty()) {
m_backing_store = nullptr;
} else if (!m_client && (!m_backing_store || old_rect.size() != rect.size())) {
m_backing_store = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, m_rect.size());
}
invalidate(true, old_rect.size() != rect.size());
m_frame.window_rect_changed(old_rect, rect); // recomputes occlusions
}
void Window::set_rect_without_repaint(const Gfx::IntRect& rect)
{
VERIFY(!rect.is_empty());
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); // recomputes occlusions
}
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::nudge_into_desktop(Screen* target_screen, bool force_titlebar_visible)
{
if (!target_screen) {
// If no explicit target screen was supplied,
// guess based on the current frame rectangle
target_screen = &Screen::closest_to_rect(rect());
}
Gfx::IntRect arena = WindowManager::the().arena_rect_for_type(*target_screen, type());
auto min_visible = 1;
switch (type()) {
case WindowType::Normal:
min_visible = 30;
break;
case WindowType::Desktop:
set_rect(arena);
return;
default:
break;
}
// Push the frame around such that at least `min_visible` pixels of the *frame* are in the desktop rect.
auto old_frame_rect = frame().rect();
Gfx::IntRect new_frame_rect = {
clamp(old_frame_rect.x(), arena.left() + min_visible - width(), arena.right() - min_visible),
clamp(old_frame_rect.y(), arena.top() + min_visible - height(), arena.bottom() - min_visible),
old_frame_rect.width(),
old_frame_rect.height(),
};
// Make sure that at least half of the titlebar is visible.
auto min_frame_y = arena.top() - (y() - old_frame_rect.y()) / 2;
if (force_titlebar_visible && new_frame_rect.y() < min_frame_y) {
new_frame_rect.set_y(min_frame_y);
}
// Deduce new window rect:
Gfx::IntRect new_window_rect = {
x() + new_frame_rect.x() - old_frame_rect.x(),
y() + new_frame_rect.y() - old_frame_rect.y(),
width(),
height(),
};
set_rect(new_window_rect);
}
void Window::set_minimum_size(const Gfx::IntSize& size)
{
if (size.is_null())
return;
if (m_minimum_size == size)
return;
// Disallow setting minimum zero widths or heights.
if (size.width() == 0 || size.height() == 0)
return;
m_minimum_size = size;
}
void Window::handle_mouse_event(const MouseEvent& 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(), 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());
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());
break;
case Event::MouseUp:
m_client->async_mouse_up(m_window_id, event.position(), (u32)event.button(), event.buttons(), event.modifiers(), event.wheel_delta());
break;
case Event::MouseWheel:
m_client->async_mouse_wheel(m_window_id, event.position(), (u32)event.button(), event.buttons(), event.modifiers(), event.wheel_delta());
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 ? "&Unminimize" : "Mi&nimize");
m_window_menu_minimize_item->set_enabled(m_minimizable);
m_window_menu_maximize_item->set_text(m_maximized ? "&Restore" : "Ma&ximize");
m_window_menu_maximize_item->set_enabled(m_resizable);
m_window_menu_move_item->set_enabled(!m_minimized && !m_maximized && !m_fullscreen);
}
void Window::set_minimized(bool minimized)
{
if (m_minimized == minimized)
return;
if (minimized && !m_minimizable)
return;
m_minimized = minimized;
update_window_menu_items();
Compositor::the().invalidate_occlusions();
Compositor::the().invalidate_screen(frame().render_rect());
if (!blocking_modal_window())
start_minimize_animation();
if (!minimized)
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_taskbar_rect(const Gfx::IntRect& 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 (!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_length(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)
{
m_animation = Animation::create();
m_animation->set_length(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, Optional<Gfx::IntPoint> fixed_point)
{
if (m_maximized == maximized)
return;
if (maximized && (!is_resizable() || resize_aspect_ratio().has_value()))
return;
m_tiled = WindowTileType::None;
m_maximized = maximized;
update_window_menu_items();
if (maximized) {
m_unmaximized_rect = m_rect;
set_rect(WindowManager::the().maximized_window_rect(*this));
} else {
if (fixed_point.has_value()) {
auto new_rect = Gfx::IntRect(m_rect);
new_rect.set_size_around(m_unmaximized_rect.size(), fixed_point.value());
set_rect(new_rect);
} else {
set_rect(m_unmaximized_rect);
}
}
m_frame.did_set_maximized({}, maximized);
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(m_rect));
set_default_positioned(false);
}
void Window::set_vertically_maximized()
{
if (m_maximized)
return;
if (!is_resizable() || resize_aspect_ratio().has_value())
return;
auto max_rect = WindowManager::the().maximized_window_rect(*this);
auto new_rect = Gfx::IntRect(
Gfx::IntPoint(rect().x(), max_rect.y()),
Gfx::IntSize(rect().width(), max_rect.height()));
set_rect(new_rect);
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(new_rect));
}
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 (!m_client) {
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<const MouseEvent&>(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<const KeyEvent&>(event));
break;
case Event::KeyUp:
m_client->async_key_up(m_window_id,
(u32) static_cast<const KeyEvent&>(event).code_point(),
(u32) static_cast<const KeyEvent&>(event).key(),
static_cast<const KeyEvent&>(event).modifiers(),
(u32) static_cast<const KeyEvent&>(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<const ResizeEvent&>(event).rect());
break;
default:
break;
}
}
void Window::handle_keydown_event(const KeyEvent& 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() && menubar()) {
Menu* menu_to_open = nullptr;
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_global_cursor_tracking_enabled(bool enabled)
{
m_global_cursor_tracking_enabled = enabled;
}
void Window::set_visible(bool b)
{
if (m_visible == b)
return;
m_visible = b;
if (!m_visible)
WindowManager::the().check_hide_geometry_overlay(*this);
Compositor::the().invalidate_occlusions();
if (m_visible)
invalidate(true);
else
Compositor::the().invalidate_screen(frame().render_rect());
}
void Window::set_frameless(bool frameless)
{
if (m_frameless == frameless)
return;
auto render_rect_before = frame().render_rect();
m_frameless = frameless;
if (m_visible) {
Compositor::the().invalidate_occlusions();
invalidate(true, true);
Compositor::the().invalidate_screen(frameless ? render_rect_before : frame().render_rect());
}
}
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(const Gfx::IntRect& rect, bool with_frame)
{
if (type() == WindowType::Applet) {
AppletManager::the().invalidate_applet(*this, rect);
return;
}
if (invalidate_no_notify(rect, with_frame))
Compositor::the().invalidate_window();
}
bool Window::invalidate_no_notify(const Gfx::IntRect& rect, bool with_frame)
{
if (rect.is_empty())
return false;
if (m_invalidated_all) {
if (with_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 (with_frame)
m_invalidated_frame |= true;
m_dirty_rects.add(inner_rect.translated(-outer_rect.location()));
return true;
}
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
{
if (!outer_stack())
return false;
return outer_stack()->active_window() == this;
}
Window* Window::blocking_modal_window()
{
// A window is blocked if any immediate child, or any child further
// down the chain is modal
for (auto& window : m_child_windows) {
if (window && !window->is_destroyed()) {
if (window->is_modal())
return window;
if (auto* blocking_window = window->blocking_modal_window())
return blocking_window;
}
}
return nullptr;
}
void Window::set_default_icon()
{
m_icon = default_window_icon();
}
void Window::request_update(const Gfx::IntRect& rect, bool ignore_occlusion)
{
if (rect.is_empty())
return;
if (m_pending_paint_rects.is_empty()) {
deferred_invoke([this, ignore_occlusion](auto&) {
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->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));
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);
if (!m_minimized)
WindowManager::the().move_to_front_and_make_active(*this);
break;
case WindowMenuAction::MaximizeOrRestore:
WindowManager::the().maximize_windows(*this, !m_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();
Compositor::the().invalidate_occlusions();
Compositor::the().invalidate_screen();
break;
}
}
}
void Window::popup_window_menu(const 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 ? 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(m_maximized ? &restore_icon() : &maximize_icon());
m_window_menu_close_item->set_default(default_action == WindowMenuDefaultAction::Close);
m_window_menu_menubar_visibility_item->set_enabled(menubar());
m_window_menu_menubar_visibility_item->set_checked(menubar() && 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()
{
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);
}
Gfx::IntRect Window::tiled_rect(Screen* target_screen, WindowTileType tiled) const
{
if (!target_screen) {
// If no explicit target screen was supplied,
// guess based on the current frame rectangle
target_screen = &Screen::closest_to_rect(frame().rect());
}
VERIFY(tiled != WindowTileType::None);
int frame_width = (m_frame.rect().width() - m_rect.width()) / 2;
int titlebar_height = m_frame.titlebar_rect().height();
auto maximized_rect_relative_to_window_screen = WindowManager::the().maximized_window_rect(*this, true);
int menu_height = maximized_rect_relative_to_window_screen.y();
int max_height = maximized_rect_relative_to_window_screen.height();
auto& screen = *target_screen;
auto screen_location = screen.rect().location();
switch (tiled) {
case WindowTileType::Left:
return Gfx::IntRect(0,
menu_height,
screen.width() / 2 - frame_width,
max_height)
.translated(screen_location);
case WindowTileType::Right:
return Gfx::IntRect(screen.width() / 2 + frame_width,
menu_height,
screen.width() / 2 - frame_width,
max_height)
.translated(screen_location);
case WindowTileType::Top:
return Gfx::IntRect(0,
menu_height,
screen.width(),
(max_height - titlebar_height) / 2 - frame_width)
.translated(screen_location);
case WindowTileType::Bottom:
return Gfx::IntRect(0,
menu_height + (titlebar_height + max_height) / 2 + frame_width,
screen.width(),
(max_height - titlebar_height) / 2 - frame_width)
.translated(screen_location);
case WindowTileType::TopLeft:
return Gfx::IntRect(0,
menu_height,
screen.width() / 2 - frame_width,
(max_height - titlebar_height) / 2 - frame_width)
.translated(screen_location);
case WindowTileType::TopRight:
return Gfx::IntRect(screen.width() / 2 + frame_width,
menu_height,
screen.width() / 2 - frame_width,
(max_height - titlebar_height) / 2 - frame_width)
.translated(screen_location);
case WindowTileType::BottomLeft:
return Gfx::IntRect(0,
menu_height + (titlebar_height + max_height) / 2 + frame_width,
screen.width() / 2 - frame_width,
(max_height - titlebar_height) / 2 - frame_width)
.translated(screen_location);
case WindowTileType::BottomRight:
return Gfx::IntRect(screen.width() / 2 + frame_width,
menu_height + (titlebar_height + max_height) / 2 + frame_width,
screen.width() / 2 - frame_width,
(max_height - titlebar_height) / 2 - frame_width)
.translated(screen_location);
default:
VERIFY_NOT_REACHED();
}
}
bool Window::set_untiled(Optional<Gfx::IntPoint> fixed_point)
{
if (m_tiled == WindowTileType::None)
return false;
VERIFY(!resize_aspect_ratio().has_value());
m_tiled = WindowTileType::None;
if (fixed_point.has_value()) {
auto new_rect = Gfx::IntRect(m_rect);
new_rect.set_size_around(m_untiled_rect.size(), fixed_point.value());
set_rect(new_rect);
} else {
set_rect(m_untiled_rect);
}
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(m_rect));
return true;
}
void Window::set_tiled(Screen* screen, WindowTileType tiled)
{
VERIFY(tiled != WindowTileType::None);
if (m_tiled == tiled)
return;
if (resize_aspect_ratio().has_value())
return;
if (m_tiled == WindowTileType::None)
m_untiled_rect = m_rect;
m_tiled = tiled;
set_rect(tiled_rect(screen, tiled));
Core::EventLoop::current().post_event(*this, make<ResizeEvent>(m_rect));
}
void Window::detach_client(Badge<ClientConnection>)
{
m_client = nullptr;
}
void Window::recalculate_rect()
{
if (!is_resizable())
return;
bool send_event = true;
if (m_tiled != WindowTileType::None) {
set_rect(tiled_rect(nullptr, m_tiled));
} else if (is_maximized()) {
set_rect(WindowManager::the().maximized_window_rect(*this));
} 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::add_accessory_window(Window& accessory_window)
{
m_accessory_windows.append(accessory_window);
}
void Window::set_parent_window(Window& parent_window)
{
VERIFY(!m_parent_window);
m_parent_window = parent_window;
if (m_accessory)
parent_window.add_accessory_window(*this);
else
parent_window.add_child_window(*this);
}
bool Window::is_accessory() const
{
if (!m_accessory)
return false;
if (parent_window() != nullptr)
return true;
// If accessory window was unparented, convert to a regular window
const_cast<Window*>(this)->set_accessory(false);
return false;
}
bool Window::is_accessory_of(Window& window) const
{
if (!is_accessory())
return false;
return parent_window() == &window;
}
void Window::modal_unparented()
{
m_modal = false;
WindowManager::the().notify_modal_unparented(*this);
}
bool Window::is_modal() const
{
if (!m_modal)
return false;
if (!m_parent_window) {
const_cast<Window*>(this)->modal_unparented();
return false;
}
return true;
}
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;
for (auto& accessory : parent->accessory_windows()) {
if (accessory == &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::set_menubar(Menubar* menubar)
{
if (m_menubar == menubar)
return;
m_menubar = menubar;
if (m_menubar) {
// FIXME: Maybe move this to the theming system?
static constexpr auto menubar_menu_margin = 14;
auto& wm = WindowManager::the();
Gfx::IntPoint next_menu_location { 0, 0 };
auto menubar_rect = Gfx::WindowTheme::current().menubar_rect(Gfx::WindowTheme::WindowType::Normal, rect(), wm.palette(), 1);
m_menubar->for_each_menu([&](Menu& menu) {
int text_width = wm.font().width(Gfx::parse_ampersand_string(menu.name()));
menu.set_rect_in_window_menubar({ next_menu_location.x(), 0, text_width + menubar_menu_margin, menubar_rect.height() });
next_menu_location.translate_by(menu.rect_in_window_menubar().width(), 0);
return IterationDecision::Continue;
});
}
Compositor::the().invalidate_occlusions();
frame().invalidate();
}
void Window::invalidate_menubar()
{
if (!m_should_show_menubar || !menubar())
return;
// FIXME: This invalidates way more than the menubar!
frame().invalidate();
}
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;
title.replace("[*]", is_modified() ? " (*)" : "");
if (client() && client()->is_unresponsive())
return String::formatted("{} (Not responding)", title);
return title;
}
}
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