* RootLayer's mouse event processing is now at its minimum - the
EventDispatcher handles them now. As a result, a window will now
get only one message per event.
* RootLayer adds "_view_token" to mouse moved messages that specify
the view currently under the cursor.
* There is now a mouse event layer in RootLayer that gets preferred
when it's set - this is now used for the window moving instead of
the previous mechanism.
* changed the previous DistributeMessage() to an UnpackMessage()
method following Adi's suggestion.
* caveat: some things might be functionally broken in RootLayer now
because of removing the mouse notification stuff.
* "be:transit" handling is now done completely client side by
BWindow::_SanitizeMessage(() (similar to what the input_server does).
This should also make the mechanism pretty robust, since every
B_MOUSE_MOVED message can now trigger the view transit (in case a
message is lost). B_WINDOW_ACTIVATED messages should be generated
client side as well.
* renamed AS_LAYER_GET_MOUSE_COORDS to AS_GET_MOUSE as it's not a
layer specific command, and also gets the mouse buttons.
* B_MOUSE_* messages from the up server now contain only a "screen_where"
field; "where" (in window's coordinates) and "be:view_where" are
added in BMessage::_SanitizeMessage().
* messages that don't have a valid target in the looper are now
dropped instead of being sent to the looper - this should be done
in BLooper as well, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15087 a95241bf-73f2-0310-859d-f6bbb57e9c96
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