2006-10-13  Carlo Wood <carlo@alinoe.com>

	Fix cases when titlebar is allowed offscreen and shouldn't be (and
	vice-versa).  #333995.

	* src/display.[ch] (struct _MetaDisplay): add grab_frame_action
	member

	* src/display.[ch] (meta_display_begin_grab_op):
	* src/window.[ch] (meta_window_begin_grab_op):
	* src/core.[ch] (meta_core_begin_grab_op):
	Add frame_action parameter (core & window versions pass it on to
	display)

	* src/display.c (event_callback):
	* src/window.c (meta_window_begin_grab_op,
	  meta_window_client_message, menu_callback):
	* frames.c (meta_frames_button_press_event):
	* keybindings.c (do_choose_window, handle_begin_move,
	  handle_begin_resize, handle_workspace_switch):
	Pass whether the action should be considered a 'frame_action',
	which will be used to determine whether to force the titlebar to
	remain onscreen, to meta_*_begin_grab_op

	* constraints.c (constrain_titlebar_visible):
	Replace previous ugly hack...