scrap widget inheritance

luigi/widget/sash.lua

@@ -1,33 +1,30 @@
-local Widget = require((...):gsub('%.[^.]*$', ''))
+return function (self)
 
-local Sash = Widget:extend()
+    self:onPressDrag(function (event)
+        local axis = self.parent.flow
+        if axis == 'x' then
+            dimension = 'width'
+        else
+            axis = 'y'
+            dimension = 'height'
+        end
+        local prevSibling = self:getPrevious()
+        local nextSibling = self:getNext()
+        local prevSize = prevSibling and prevSibling[dimension]
+        local nextSize = nextSibling and nextSibling[dimension]
+        if prevSize then
+            prevSibling:setDimension(dimension,
+                    event[axis] - prevSibling:calculatePosition(axis))
+        end
+        if nextSize then
+            nextSibling:setDimension(dimension,
+                    nextSibling:calculatePosition(axis) +
+                    nextSibling[dimension] - event[axis])
+        end
 
-Sash:onPressDrag(function (event)
-    local self = event.target
-    local axis = self.parent.flow
-    if axis == 'x' then
-        dimension = 'width'
-    else
-        axis = 'y'
-        dimension = 'height'
-    end
-    local prevSibling = self:getPrevious()
-    local nextSibling = self:getNext()
-    local prevSize = prevSibling and prevSibling[dimension]
-    local nextSize = nextSibling and nextSibling[dimension]
-    if prevSize then
-        prevSibling:setDimension(dimension,
-                event[axis] - prevSibling:calculatePosition(axis))
-    end
-    if nextSize then
-        nextSibling:setDimension(dimension,
-                nextSibling:calculatePosition(axis) +
-                nextSibling[dimension] - event[axis])
-    end
+        prevSibling:reflow()
+        nextSibling:reflow()
+        self:reflow()
+    end)
 
-    prevSibling:reflow()
-    nextSibling:reflow()
-    self:reflow()
-end)
-
-return Sash
+end