ladybird/Servers/WindowServer/WSWindow.cpp
Andreas Kling 9d57e7ed68 WindowServer: Tell WSWindows who their CObject parent is
Instead of using a weird "internal owner" pointer, just set the owning
object as the CObject::parent of WSWindow.
2019-08-18 11:52:19 +02:00

356 lines
11 KiB
C++

#include "WSWindow.h"
#include "WSEvent.h"
#include "WSEventLoop.h"
#include "WSWindowManager.h"
#include <WindowServer/WSAPITypes.h>
#include <WindowServer/WSClientConnection.h>
static String default_window_icon_path()
{
return "/res/icons/16x16/window.png";
}
static GraphicsBitmap& default_window_icon()
{
static GraphicsBitmap* s_icon;
if (!s_icon)
s_icon = GraphicsBitmap::load_from_file(default_window_icon_path()).leak_ref();
return *s_icon;
}
WSWindow::WSWindow(CObject& parent, WSWindowType type)
: CObject(&parent)
, m_type(type)
, m_icon(default_window_icon())
, m_frame(*this)
{
WSWindowManager::the().add_window(*this);
}
WSWindow::WSWindow(WSClientConnection& client, WSWindowType window_type, int window_id, bool modal, bool resizable, bool fullscreen)
: CObject(&client)
, m_client(&client)
, m_type(window_type)
, m_modal(modal)
, m_resizable(resizable)
, m_fullscreen(fullscreen)
, m_window_id(window_id)
, m_icon(default_window_icon())
, m_frame(*this)
{
// FIXME: This should not be hard-coded here.
if (m_type == WSWindowType::Taskbar) {
m_wm_event_mask = WSAPI_WMEventMask::WindowStateChanges | WSAPI_WMEventMask::WindowRemovals | WSAPI_WMEventMask::WindowIconChanges;
m_listens_to_wm_events = true;
}
WSWindowManager::the().add_window(*this);
}
WSWindow::~WSWindow()
{
WSWindowManager::the().remove_window(*this);
}
void WSWindow::set_title(const String& title)
{
if (m_title == title)
return;
m_title = title;
WSWindowManager::the().notify_title_changed(*this);
}
void WSWindow::set_rect(const Rect& rect)
{
Rect old_rect;
if (m_rect == rect)
return;
old_rect = m_rect;
m_rect = rect;
if (!m_client && (!m_backing_store || old_rect.size() != rect.size())) {
m_backing_store = GraphicsBitmap::create(GraphicsBitmap::Format::RGB32, m_rect.size());
}
m_frame.notify_window_rect_changed(old_rect, rect);
}
// FIXME: Just use the same types.
static WSAPI_MouseButton to_api(MouseButton button)
{
switch (button) {
case MouseButton::None:
return WSAPI_MouseButton::NoButton;
case MouseButton::Left:
return WSAPI_MouseButton::Left;
case MouseButton::Right:
return WSAPI_MouseButton::Right;
case MouseButton::Middle:
return WSAPI_MouseButton::Middle;
}
ASSERT_NOT_REACHED();
}
void WSWindow::handle_mouse_event(const WSMouseEvent& event)
{
set_automatic_cursor_tracking_enabled(event.buttons() != 0);
WSAPI_ServerMessage server_message;
server_message.window_id = window_id();
switch (event.type()) {
case WSEvent::MouseMove:
server_message.type = WSAPI_ServerMessage::Type::MouseMove;
break;
case WSEvent::MouseDown:
server_message.type = WSAPI_ServerMessage::Type::MouseDown;
break;
case WSEvent::MouseDoubleClick:
server_message.type = WSAPI_ServerMessage::Type::MouseDoubleClick;
break;
case WSEvent::MouseUp:
server_message.type = WSAPI_ServerMessage::Type::MouseUp;
break;
case WSEvent::MouseWheel:
server_message.type = WSAPI_ServerMessage::Type::MouseWheel;
break;
default:
ASSERT_NOT_REACHED();
}
server_message.mouse.position = event.position();
server_message.mouse.button = to_api(event.button());
server_message.mouse.buttons = event.buttons();
server_message.mouse.modifiers = event.modifiers();
server_message.mouse.wheel_delta = event.wheel_delta();
m_client->post_message(server_message);
}
static WSAPI_WindowType to_api(WSWindowType ws_type)
{
switch (ws_type) {
case WSWindowType::Normal:
return WSAPI_WindowType::Normal;
case WSWindowType::Menu:
return WSAPI_WindowType::Menu;
case WSWindowType::WindowSwitcher:
return WSAPI_WindowType::WindowSwitcher;
case WSWindowType::Taskbar:
return WSAPI_WindowType::Taskbar;
case WSWindowType::Tooltip:
return WSAPI_WindowType::Tooltip;
case WSWindowType::Menubar:
return WSAPI_WindowType::Menubar;
case WSWindowType::Launcher:
return WSAPI_WindowType::Launcher;
default:
ASSERT_NOT_REACHED();
}
}
void WSWindow::set_minimized(bool minimized)
{
if (m_minimized == minimized)
return;
m_minimized = minimized;
if (!minimized)
request_update({ {}, size() });
invalidate();
WSWindowManager::the().notify_minimization_state_changed(*this);
}
void WSWindow::set_maximized(bool maximized)
{
if (m_maximized == maximized)
return;
m_maximized = maximized;
auto old_rect = m_rect;
if (maximized) {
m_unmaximized_rect = m_rect;
set_rect(WSWindowManager::the().maximized_window_rect(*this));
} else {
set_rect(m_unmaximized_rect);
}
m_frame.did_set_maximized({}, maximized);
CEventLoop::current().post_event(*this, make<WSResizeEvent>(old_rect, m_rect));
}
void WSWindow::event(CEvent& event)
{
if (!m_client) {
ASSERT(parent());
return parent()->event(event);
}
if (is_blocked_by_modal_window())
return;
WSAPI_ServerMessage server_message;
server_message.window_id = window_id();
if (static_cast<WSEvent&>(event).is_mouse_event())
return handle_mouse_event(static_cast<const WSMouseEvent&>(event));
switch (event.type()) {
case WSEvent::WindowEntered:
server_message.type = WSAPI_ServerMessage::Type::WindowEntered;
break;
case WSEvent::WindowLeft:
server_message.type = WSAPI_ServerMessage::Type::WindowLeft;
break;
case WSEvent::KeyDown:
server_message.type = WSAPI_ServerMessage::Type::KeyDown;
server_message.key.character = static_cast<const WSKeyEvent&>(event).character();
server_message.key.key = static_cast<const WSKeyEvent&>(event).key();
server_message.key.modifiers = static_cast<const WSKeyEvent&>(event).modifiers();
break;
case WSEvent::KeyUp:
server_message.type = WSAPI_ServerMessage::Type::KeyUp;
server_message.key.character = static_cast<const WSKeyEvent&>(event).character();
server_message.key.key = static_cast<const WSKeyEvent&>(event).key();
server_message.key.modifiers = static_cast<const WSKeyEvent&>(event).modifiers();
break;
case WSEvent::WindowActivated:
server_message.type = WSAPI_ServerMessage::Type::WindowActivated;
break;
case WSEvent::WindowDeactivated:
server_message.type = WSAPI_ServerMessage::Type::WindowDeactivated;
break;
case WSEvent::WindowCloseRequest:
server_message.type = WSAPI_ServerMessage::Type::WindowCloseRequest;
break;
case WSEvent::WindowResized:
server_message.type = WSAPI_ServerMessage::Type::WindowResized;
server_message.window.old_rect = static_cast<const WSResizeEvent&>(event).old_rect();
server_message.window.rect = static_cast<const WSResizeEvent&>(event).rect();
break;
case WSEvent::WM_WindowRemoved: {
auto& removed_event = static_cast<const WSWMWindowRemovedEvent&>(event);
server_message.type = WSAPI_ServerMessage::Type::WM_WindowRemoved;
server_message.wm.client_id = removed_event.client_id();
server_message.wm.window_id = removed_event.window_id();
break;
}
case WSEvent::WM_WindowStateChanged: {
auto& changed_event = static_cast<const WSWMWindowStateChangedEvent&>(event);
server_message.type = WSAPI_ServerMessage::Type::WM_WindowStateChanged;
server_message.wm.client_id = changed_event.client_id();
server_message.wm.window_id = changed_event.window_id();
server_message.wm.is_active = changed_event.is_active();
server_message.wm.is_minimized = changed_event.is_minimized();
server_message.wm.window_type = to_api(changed_event.window_type());
ASSERT(changed_event.title().length() < (int)sizeof(server_message.text));
memcpy(server_message.text, changed_event.title().characters(), changed_event.title().length());
server_message.text_length = changed_event.title().length();
server_message.wm.rect = changed_event.rect();
break;
}
case WSEvent::WM_WindowIconBitmapChanged: {
auto& changed_event = static_cast<const WSWMWindowIconBitmapChangedEvent&>(event);
server_message.type = WSAPI_ServerMessage::Type::WM_WindowIconBitmapChanged;
server_message.wm.client_id = changed_event.client_id();
server_message.wm.window_id = changed_event.window_id();
server_message.wm.icon_buffer_id = changed_event.icon_buffer_id();
server_message.wm.icon_size = changed_event.icon_size();
// FIXME: Perhaps we should update the bitmap sharing list somewhere else instead?
ASSERT(client());
dbg() << "WindowServer: Sharing icon buffer " << changed_event.icon_buffer_id() << " with PID " << client()->client_pid();
if (share_buffer_with(changed_event.icon_buffer_id(), client()->client_pid()) < 0) {
ASSERT_NOT_REACHED();
}
break;
}
case WSEvent::WM_WindowRectChanged: {
auto& changed_event = static_cast<const WSWMWindowRectChangedEvent&>(event);
server_message.type = WSAPI_ServerMessage::Type::WM_WindowRectChanged;
server_message.wm.client_id = changed_event.client_id();
server_message.wm.window_id = changed_event.window_id();
server_message.wm.rect = changed_event.rect();
break;
}
default:
break;
}
if (server_message.type == WSAPI_ServerMessage::Type::Invalid)
return;
m_client->post_message(server_message);
}
void WSWindow::set_global_cursor_tracking_enabled(bool enabled)
{
m_global_cursor_tracking_enabled = enabled;
}
void WSWindow::set_visible(bool b)
{
if (m_visible == b)
return;
m_visible = b;
invalidate();
}
void WSWindow::invalidate()
{
WSWindowManager::the().invalidate(*this);
}
bool WSWindow::is_active() const
{
return WSWindowManager::the().active_window() == this;
}
bool WSWindow::is_blocked_by_modal_window() const
{
return !is_modal() && client() && client()->is_showing_modal_window();
}
void WSWindow::set_default_icon()
{
m_icon = default_window_icon();
}
void WSWindow::request_update(const Rect& rect)
{
if (m_pending_paint_rects.is_empty()) {
deferred_invoke([this](auto&) {
client()->post_paint_message(*this);
});
}
m_pending_paint_rects.add(rect);
}
void WSWindow::popup_window_menu(const Point& position)
{
if (!m_window_menu) {
m_window_menu = make<WSMenu>(nullptr, -1, "(Window Menu)");
m_window_menu->add_item(make<WSMenuItem>(*m_window_menu, 1, "Minimize"));
m_window_menu->add_item(make<WSMenuItem>(*m_window_menu, 2, "Unminimize"));
m_window_menu->add_item(make<WSMenuItem>(*m_window_menu, WSMenuItem::Type::Separator));
m_window_menu->add_item(make<WSMenuItem>(*m_window_menu, 3, "Close"));
m_window_menu->on_item_activation = [&](auto& item) {
switch (item.identifier()) {
case 1:
set_minimized(true);
break;
case 2:
set_minimized(false);
break;
case 3:
request_close();
break;
}
};
}
m_window_menu->popup(position);
}
void WSWindow::request_close()
{
WSEvent close_request(WSEvent::WindowCloseRequest);
event(close_request);
}