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WindowServer+LibGUI: Handle mouse wheel deltas in the mouse event stream.

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The wheel events will end up in GWidget::mousewheel_event(GMouseEvent&)
on the client-side. This patch also implements basic wheel scrolling in
GScrollableWidget via this mechanism. :^)
This commit is contained in:
Andreas Kling 2019-05-13 19:52:57 +02:00
parent dae8eb6454
commit dab9901235
13 changed files with 58 additions and 25 deletions
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6
LibGUI/GEventLoop.cpp
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@ -152,13 +152,14 @@ void GEventLoop::handle_key_event(const WSAPI_ServerMessage& event, GWindow& win
void GEventLoop::handle_mouse_event(const WSAPI_ServerMessage& event, GWindow& window)
{
#ifdef GEVENTLOOP_DEBUG
dbgprintf("WID=%x MouseEvent %d,%d\n", event.window_id, event.mouse.position.x, event.mouse.position.y);
dbgprintf("WID=%x MouseEvent %d,%d,%d\n", event.window_id, event.mouse.position.x, event.mouse.position.y, event.mouse.wheel_delta);
#endif
GMouseEvent::Type type;
switch (event.type) {
case WSAPI_ServerMessage::Type::MouseMove: type = GEvent::MouseMove; break;
case WSAPI_ServerMessage::Type::MouseUp: type = GEvent::MouseUp; break;
case WSAPI_ServerMessage::Type::MouseDown: type = GEvent::MouseDown; break;
case WSAPI_ServerMessage::Type::MouseWheel: type = GEvent::MouseWheel; break;
default: ASSERT_NOT_REACHED(); break;
}
GMouseButton button { GMouseButton::None };
@ -169,7 +170,7 @@ void GEventLoop::handle_mouse_event(const WSAPI_ServerMessage& event, GWindow& w
case WSAPI_MouseButton::Middle: button = GMouseButton::Middle; break;
default: ASSERT_NOT_REACHED(); break;
}
post_event(window, make<GMouseEvent>(type, event.mouse.position, event.mouse.buttons, button, event.mouse.modifiers));
post_event(window, make<GMouseEvent>(type, event.mouse.position, event.mouse.buttons, button, event.mouse.modifiers, event.mouse.wheel_delta));
}
void GEventLoop::handle_menu_event(const WSAPI_ServerMessage& event)
@ -276,6 +277,7 @@ void GEventLoop::process_unprocessed_bundles()
case WSAPI_ServerMessage::Type::MouseDown:
case WSAPI_ServerMessage::Type::MouseUp:
case WSAPI_ServerMessage::Type::MouseMove:
case WSAPI_ServerMessage::Type::MouseWheel:
handle_mouse_event(event, *window);
break;
case WSAPI_ServerMessage::Type::WindowActivated: