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LibGUI: Add "drag enter" and "drag leave" events

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These events allow widgets to react when a drag enters/leaves their
rectangle. The enter event carries position + mime type, while the
leave event has no information.
This commit is contained in:
Andreas Kling 2021-01-08 22:23:06 +01:00
parent 4728d0dd6a
commit 9acb72e804
7 changed files with 60 additions and 3 deletions
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19
Libraries/LibGUI/Widget.cpp
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@ -273,8 +273,12 @@ void Widget::event(Core::Event& event)
return handle_mouseup_event(static_cast<MouseEvent&>(event));
case Event::MouseWheel:
return mousewheel_event(static_cast<MouseEvent&>(event));
case Event::DragEnter:
return drag_enter_event(static_cast<DragEvent&>(event));
case Event::DragMove:
return drag_move_event(static_cast<DragEvent&>(event));
case Event::DragLeave:
return drag_leave_event(static_cast<Event&>(event));
case Event::Drop:
return drop_event(static_cast<DropEvent&>(event));
case Event::ThemeChange:
@ -497,13 +501,24 @@ void Widget::change_event(Event&)
void Widget::drag_move_event(DragEvent& event)
{
dbg() << class_name() << "{" << this << "} DRAG MOVE position: " << event.position() << ", data_type: '" << event.data_type() << "'";
event.ignore();
}
void Widget::drag_enter_event(DragEvent& event)
{
dbgln("{} {:p} DRAG ENTER @ {}, {}", class_name(), this, event.position(), event.data_type());
event.ignore();
}
void Widget::drag_leave_event(Event& event)
{
dbgln("{} {:p} DRAG LEAVE", class_name(), this);
event.ignore();
}
void Widget::drop_event(DropEvent& event)
{
dbg() << class_name() << "{" << this << "} DROP position: " << event.position() << ", text: '" << event.text() << "'";
dbgln("{} {:p} DROP @ {}, '{}'", class_name(), this, event.position(), event.text());
event.ignore();
}