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WindowServer: Expose window parent information and more modal improvements

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* The parent information is necessary by the Taskbar to be able to
  determine a modal window's parent
* Minimize and maximize modal window stacks together
This commit is contained in:
Tom 2020-07-15 17:40:52 -06:00 • committed by Andreas Kling
parent 2f731150a2
commit bbdf0665fc
8 changed files with 113 additions and 43 deletions
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11
Libraries/LibGUI/Event.h
View file

@ -114,31 +114,40 @@ public:
class WMWindowStateChangedEvent : public WMEvent {
public:
WMWindowStateChangedEvent(int client_id, int window_id, const StringView& title, const Gfx::IntRect& rect, bool is_active, WindowType window_type, bool is_minimized, bool is_frameless, int progress)
WMWindowStateChangedEvent(int client_id, int window_id, int parent_client_id, int parent_window_id, const StringView& title, const Gfx::IntRect& rect, bool is_active, bool is_modal, WindowType window_type, bool is_minimized, bool is_frameless, int progress)
: WMEvent(Event::Type::WM_WindowStateChanged, client_id, window_id)
, m_parent_client_id(parent_client_id)
, m_parent_window_id(parent_window_id)
, m_title(title)
, m_rect(rect)
, m_window_type(window_type)
, m_active(is_active)
, m_modal(is_modal)
, m_minimized(is_minimized)
, m_frameless(is_frameless)
, m_progress(progress)
{
}
int parent_client_id() const { return m_parent_client_id; }
int parent_window_id() const { return m_parent_window_id; }
String title() const { return m_title; }
Gfx::IntRect rect() const { return m_rect; }
bool is_active() const { return m_active; }
bool is_modal() const { return m_modal; }
WindowType window_type() const { return m_window_type; }
bool is_minimized() const { return m_minimized; }
bool is_frameless() const { return m_frameless; }
int progress() const { return m_progress; }
private:
int m_parent_client_id;
int m_parent_window_id;
String m_title;
Gfx::IntRect m_rect;
WindowType m_window_type;
bool m_active;
bool m_modal;
bool m_minimized;
bool m_frameless;
int m_progress;

2
Libraries/LibGUI/WindowServerConnection.cpp
View file

@ -273,7 +273,7 @@ void WindowServerConnection::handle(const Messages::WindowClient::MenuItemActiva
void WindowServerConnection::handle(const Messages::WindowClient::WM_WindowStateChanged& message)
{
if (auto* window = Window::from_window_id(message.wm_id()))
Core::EventLoop::current().post_event(*window, make<WMWindowStateChangedEvent>(message.client_id(), message.window_id(), message.title(), message.rect(), message.is_active(), static_cast<WindowType>(message.window_type()), message.is_minimized(), message.is_frameless(), message.progress()));
Core::EventLoop::current().post_event(*window, make<WMWindowStateChangedEvent>(message.client_id(), message.window_id(), message.parent_client_id(), message.parent_window_id(), message.title(), message.rect(), message.is_active(), message.is_modal(), static_cast<WindowType>(message.window_type()), message.is_minimized(), message.is_frameless(), message.progress()));
}
void WindowServerConnection::handle(const Messages::WindowClient::WM_WindowRectChanged& message)

8
Services/WindowServer/ClientConnection.cpp
View file

@ -630,7 +630,7 @@ void ClientConnection::handle(const Messages::WindowServer::WM_SetActiveWindow&
return;
}
auto& window = *(*it).value;
window.set_minimized(false);
WindowManager::the().minimize_windows(window, false);
WindowManager::the().move_to_front_and_make_active(window);
}
@ -647,7 +647,11 @@ void ClientConnection::handle(const Messages::WindowServer::WM_PopupWindowMenu&
return;
}
auto& window = *(*it).value;
if (auto* blocked_by_modal = window.is_blocked_by_modal_window()) {
blocked_by_modal->popup_window_menu(message.screen_position(), WindowMenuDefaultAction::BasedOnWindowState);
} else {
window.popup_window_menu(message.screen_position(), WindowMenuDefaultAction::BasedOnWindowState);
}
}
void ClientConnection::handle(const Messages::WindowServer::WM_StartWindowResize& request)
@ -681,7 +685,7 @@ void ClientConnection::handle(const Messages::WindowServer::WM_SetWindowMinimize
return;
}
auto& window = *(*it).value;
window.set_minimized(message.minimized());
WindowManager::the().minimize_windows(window, message.minimized());
}
OwnPtr<Messages::WindowServer::GreetResponse> ClientConnection::handle(const Messages::WindowServer::Greet&)

28
Services/WindowServer/Window.cpp
View file

@ -214,10 +214,9 @@ void Window::set_minimized(bool minimized)
return;
if (minimized && !m_minimizable)
return;
if (is_blocked_by_modal_window())
return;
m_minimized = minimized;
update_menu_item_text(PopupMenuItem::Minimize);
if (!is_blocked_by_modal_window())
start_minimize_animation();
if (!minimized)
request_update({ {}, size() });
@ -256,8 +255,6 @@ void Window::set_maximized(bool maximized)
return;
if (maximized && !is_resizable())
return;
if (is_blocked_by_modal_window())
return;
set_tiled(WindowTileType::None);
m_maximized = maximized;
update_menu_item_text(PopupMenuItem::Maximize);
@ -446,14 +443,12 @@ void Window::ensure_window_menu()
m_window_menu->on_item_activation = [&](auto& item) {
switch (item.identifier()) {
case 1:
set_minimized(!m_minimized);
WindowManager::the().minimize_windows(*this, !m_minimized);
if (!m_minimized)
WindowManager::the().move_to_front_and_make_active(*this);
break;
case 2:
set_maximized(!m_maximized);
if (m_minimized)
set_minimized(false);
WindowManager::the().maximize_windows(*this, !m_maximized);
WindowManager::the().move_to_front_and_make_active(*this);
break;
case 3:
@ -613,6 +608,23 @@ bool Window::is_accessory_of(Window& window) const
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(int progress)
{
if (m_progress == progress)

4
Services/WindowServer/Window.h
View file

@ -145,7 +145,8 @@ public:
bool is_visible() const { return m_visible; }
void set_visible(bool);
bool is_modal() const { return m_modal && m_parent_window; }
bool is_modal() const;
bool is_modal_dont_unparent() const { return m_modal && m_parent_window; }
Gfx::IntRect rect() const { return m_rect; }
void set_rect(const Gfx::IntRect&);
@ -260,6 +261,7 @@ private:
void add_child_window(Window&);
void add_accessory_window(Window&);
void ensure_window_menu();
void modal_unparented();
ClientConnection* m_client { nullptr };

2
Services/WindowServer/WindowClient.ipc
View file

@ -23,7 +23,7 @@ endpoint WindowClient = 4
ScreenRectChanged(Gfx::IntRect rect) =|
WM_WindowRemoved(i32 wm_id, i32 client_id, i32 window_id) =|
WM_WindowStateChanged(i32 wm_id, i32 client_id, i32 window_id, bool is_active, bool is_minimized, bool is_frameless, i32 window_type, [UTF8] String title, Gfx::IntRect rect, i32 progress) =|
WM_WindowStateChanged(i32 wm_id, i32 client_id, i32 window_id, i32 parent_client_id, i32 parent_window_id, bool is_active, bool is_minimized, bool is_modal, bool is_frameless, i32 window_type, [UTF8] String title, Gfx::IntRect rect, i32 progress) =|
WM_WindowIconBitmapChanged(i32 wm_id, i32 client_id, i32 window_id, i32 icon_buffer_id, Gfx::IntSize icon_size) =|
WM_WindowRectChanged(i32 wm_id, i32 client_id, i32 window_id, Gfx::IntRect rect) =|

57
Services/WindowServer/WindowManager.cpp
View file

@ -220,31 +220,14 @@ void WindowManager::move_to_front_and_make_active(Window& window)
do_move_to_front(wnd, make_active, make_input);
};
auto* blocking_modal_window = window.is_blocked_by_modal_window();
if (blocking_modal_window || window.is_modal()) {
// If a window that is currently blocked by a modal child is being
// brought to the front, bring the entire stack of modal windows
// to the front and activate the modal window. Also set the
// active input window to that same window (which would pull
// active input from any accessory window)
Vector<Window*> modal_stack;
auto* modal_stack_top = blocking_modal_window ? blocking_modal_window : &window;
for (auto* parent = modal_stack_top->parent_window(); parent; parent = parent->parent_window()) {
if (parent->is_blocked_by_modal_window() != blocking_modal_window)
break;
modal_stack.append(parent);
if (!parent->is_modal())
break;
}
if (!modal_stack.is_empty()) {
for (size_t i = modal_stack.size(); i > 0; i--) {
move_window_to_front(*modal_stack[i - 1], false, false);
}
}
move_window_to_front(*modal_stack_top, true, true);
} else {
move_window_to_front(window, true, true);
}
for_each_window_in_modal_stack(window, [&](auto& w, bool is_stack_top) {
move_window_to_front(w, is_stack_top, is_stack_top);
});
}
void WindowManager::do_move_to_front(Window& window, bool make_active, bool make_input)
@ -287,7 +270,7 @@ void WindowManager::remove_window(Window& window)
for_each_window_listening_to_wm_events([&window](Window& listener) {
if (!(listener.wm_event_mask() & WMEventMask::WindowRemovals))
return IterationDecision::Continue;
if (!window.is_internal())
if (!window.is_internal() && !window.is_modal())
listener.client()->post_message(Messages::WindowClient::WM_WindowRemoved(listener.window_id(), window.client_id(), window.window_id()));
return IterationDecision::Continue;
});
@ -299,7 +282,8 @@ void WindowManager::tell_wm_listener_about_window(Window& listener, Window& wind
return;
if (window.is_internal())
return;
listener.client()->post_message(Messages::WindowClient::WM_WindowStateChanged(listener.window_id(), window.client_id(), window.window_id(), window.is_active(), window.is_minimized(), window.is_frameless(), (i32)window.type(), window.title(), window.rect(), window.progress()));
auto* parent = window.parent_window();
listener.client()->post_message(Messages::WindowClient::WM_WindowStateChanged(listener.window_id(), window.client_id(), window.window_id(), parent ? parent->client_id() : -1, parent ? parent->window_id() : -1, window.is_active(), window.is_minimized(), window.is_modal_dont_unparent(), window.is_frameless(), (i32)window.type(), window.title(), window.rect(), window.progress()));
}
void WindowManager::tell_wm_listener_about_window_rect(Window& listener, Window& window)
@ -366,6 +350,19 @@ void WindowManager::notify_title_changed(Window& window)
tell_wm_listeners_window_state_changed(window);
}
void WindowManager::notify_modal_unparented(Window& window)
{
if (window.type() != WindowType::Normal)
return;
#ifdef WINDOWMANAGER_DEBUG
dbg() << "[WM] Modal Window{" << &window << "} was unparented";
#endif
if (m_switcher.is_visible())
m_switcher.refresh();
tell_wm_listeners_window_state_changed(window);
}
void WindowManager::notify_rect_changed(Window& window, const Gfx::IntRect& old_rect, const Gfx::IntRect& new_rect)
{
UNUSED_PARAM(old_rect);
@ -1405,4 +1402,20 @@ void WindowManager::did_popup_a_menu(Badge<Menu>)
m_active_input_tracking_window = nullptr;
}
void WindowManager::minimize_windows(Window& window, bool minimized)
{
for_each_window_in_modal_stack(window, [&](auto& w, bool) {
w.set_minimized(minimized);
});
}
void WindowManager::maximize_windows(Window& window, bool maximized)
{
for_each_window_in_modal_stack(window, [&](auto& w, bool) {
w.set_maximized(maximized);
if (w.is_minimized())
w.set_minimized(false);
});
}
}

30
Services/WindowServer/WindowManager.h
View file

@ -88,6 +88,7 @@ public:
void remove_window(Window&);
void notify_title_changed(Window&);
void notify_modal_unparented(Window&);
void notify_rect_changed(Window&, const Gfx::IntRect& oldRect, const Gfx::IntRect& newRect);
void notify_minimization_state_changed(Window&);
void notify_opacity_changed(Window&);
@ -181,6 +182,35 @@ public:
void start_menu_doubleclick(Window& window, const MouseEvent& event);
bool is_menu_doubleclick(Window& window, const MouseEvent& event) const;
void minimize_windows(Window&, bool);
void maximize_windows(Window&, bool);
template<typename Function>
void for_each_window_in_modal_stack(Window& window, Function f)
{
auto* blocking_modal_window = window.is_blocked_by_modal_window();
if (blocking_modal_window || window.is_modal()) {
Vector<Window*> modal_stack;
auto* modal_stack_top = blocking_modal_window ? blocking_modal_window : &window;
for (auto* parent = modal_stack_top->parent_window(); parent; parent = parent->parent_window()) {
if (parent->is_blocked_by_modal_window() != modal_stack_top)
break;
modal_stack.append(parent);
if (!parent->is_modal())
break;
}
if (!modal_stack.is_empty()) {
for (size_t i = modal_stack.size(); i > 0; i--) {
f(*modal_stack[i - 1], false);
}
}
f(*modal_stack_top, true);
} else {
// Not a modal window stack, just "iterate" over this window
f(window, true);
}
}
private:
NonnullRefPtr<Cursor> get_cursor(const String& name);
NonnullRefPtr<Cursor> get_cursor(const String& name, const Gfx::IntPoint& hotspot);