allow events bound to widget classes

luigi/widget/sash.lua

@@ -2,36 +2,32 @@ local Widget = require((...):gsub('%.[^.]*$', ''))
 
 local Sash = Widget:extend()
 
-function Sash:constructor (layout, data)
-    Widget.constructor(self, layout, data)
+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
 
-    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
-
-        prevSibling:reflow()
-        nextSibling:reflow()
-        self:reflow()
-    end)
-
-end
+    prevSibling:reflow()
+    nextSibling:reflow()
+    self:reflow()
+end)
 
 return Sash