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LibGUI: Implement enter/leave events (with WindowServer support.)

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Windows now learn when the mouse cursor leaves or enters them.
Use this to implement GWidget::{enter,leave}_event() and use that
to implement the CoolBar button effect. :^)
This commit is contained in:
Andreas Kling 2019-02-20 10:12:19 +01:00
parent af7eb5c89c
commit bf30502560
14 changed files with 103 additions and 5 deletions
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27
WindowServer/WSWindowManager.cpp
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@ -488,8 +488,10 @@ void WSWindowManager::handle_close_button_mouse_event(WSWindow& window, WSMouseE
}
}
void WSWindowManager::process_mouse_event(WSMouseEvent& event)
void WSWindowManager::process_mouse_event(WSMouseEvent& event, WSWindow*& event_window)
{
event_window = nullptr;
if (event.type() == WSMessage::MouseUp && event.button() == MouseButton::Left) {
if (m_drag_window) {
#ifdef DRAG_DEBUG
@ -561,6 +563,7 @@ void WSWindowManager::process_mouse_event(WSMouseEvent& event)
move_to_front(window);
set_active_window(&window);
}
event_window = &window;
// FIXME: Should we just alter the coordinates of the existing MouseEvent and pass it through?
Point position { event.x() - window.rect().x(), event.y() - window.rect().y() };
auto local_event = make<WSMouseEvent>(event.type(), position, event.buttons(), event.button());
@ -753,8 +756,12 @@ void WSWindowManager::draw_cursor()
void WSWindowManager::on_message(WSMessage& message)
{
if (message.is_mouse_event())
return process_mouse_event(static_cast<WSMouseEvent&>(message));
if (message.is_mouse_event()) {
WSWindow* event_window = nullptr;
process_mouse_event(static_cast<WSMouseEvent&>(message), event_window);
set_hovered_window(event_window);
return;
}
if (message.is_key_event()) {
// FIXME: This is a good place to hook key events globally. :)
@ -795,6 +802,20 @@ void WSWindowManager::set_active_window(WSWindow* window)
}
}
void WSWindowManager::set_hovered_window(WSWindow* window)
{
if (m_hovered_window.ptr() == window)
return;
if (m_hovered_window)
WSMessageLoop::the().post_message(m_hovered_window.ptr(), make<WSMessage>(WSMessage::WindowLeft));
m_hovered_window = window ? window->make_weak_ptr() : nullptr;
if (m_hovered_window)
WSMessageLoop::the().post_message(m_hovered_window.ptr(), make<WSMessage>(WSMessage::WindowEntered));
}
void WSWindowManager::invalidate()
{
m_dirty_rects.clear_with_capacity();