2007-07-08  Vincent Untz  <vuntz@gnome.org>

	Make the window action menu work when more things change.

	* libwnck/window-action-menu.c: (update_menu_state): hide/show
	left/right/up/down items, refill the workspace submenu when needed,
	hide the unpin item and popdown the workspace submenu when there is
	only one workspace
	(workspace_changed_callback): new, update the menu when the window is
	on another workspace
	(screen_workspace_callback): new, update the menu when a workspace is
	created/destroyed
	(refill_submenu): new, from code from wnck_create_window_action_menu()
	(wnck_create_window_action_menu): always create left/right/up/down
	items, don't create the workspace submenu here, connect to
	workspace_changed, workspace_created and workspace_destroyed

svn path=/trunk/; revision=1399