mouse: Add the current_widget_geometry property

Apparently, __index cannot return multiple values, so the previous
code wasn't working.

lib/awful/mouse/init.lua

@@ -284,7 +284,6 @@ end
 -- @treturn table The list of widgets.The first element is the biggest
 -- container while the last is the topmost widget. The table contains *x*, *y*,
 -- *width*, *height* and *widget*.
--- @treturn table The list of geometries.
 -- @see wibox.find_widgets
 
 function mouse.object.get_current_widgets()
@@ -308,8 +307,8 @@ end
 -- @property current_widget
 -- @tparam widget|nil widget The widget
 -- @treturn ?widget The widget
--- @treturn ?table The geometry.
 -- @see wibox.find_widgets
+-- @see current_widget_geometry
 
 function mouse.object.get_current_widget()
     local wdgs, geos = mouse.object.get_current_widgets()
@@ -319,6 +318,28 @@ function mouse.object.get_current_widget()
     end
 end
 
+--- Get the current widget geometry.
+-- @property current_widget_geometry
+-- @tparam ?table The geometry.
+-- @see current_widget
+
+function mouse.object.get_current_widget_geometry()
+    local _, ret = mouse.object.get_current_widget()
+
+    return ret
+end
+
+--- Get the current widget geometries.
+-- @property current_widget_geometries
+-- @tparam ?table A list of geometry tables.
+-- @see current_widgets
+
+function mouse.object.get_current_widget_geometries()
+    local _, ret = mouse.object.get_current_widgets()
+
+    return ret
+end
+
 --- True if the left mouse button is pressed.
 -- @property is_left_mouse_button_pressed
 -- @param boolean