cleanup: expand tab to 4 spaces

frontend/ui/widget/iconbutton.lua

@@ -7,51 +7,51 @@ local UIManager = require("ui/uimanager")
 Button with a big icon image! Designed for touch device
 --]]
 local IconButton = InputContainer:new{
-	icon_file = "resources/info-confirm.png",
-	dimen = nil,
-	-- show_parent is used for UIManager:setDirty, so we can trigger repaint
-	show_parent = nil,
-	callback = function() end,
+    icon_file = "resources/info-confirm.png",
+    dimen = nil,
+    -- show_parent is used for UIManager:setDirty, so we can trigger repaint
+    show_parent = nil,
+    callback = function() end,
 }
 
 function IconButton:init()
-	self.image = ImageWidget:new{
-		file = self.icon_file
-	}
+    self.image = ImageWidget:new{
+        file = self.icon_file
+    }
 
-	self.show_parent = self.show_parent or self
-	self.dimen = self.image:getSize()
+    self.show_parent = self.show_parent or self
+    self.dimen = self.image:getSize()
 
-	self:initGesListener()
+    self:initGesListener()
 
-	self[1] = self.image
+    self[1] = self.image
 end
 
 function IconButton:initGesListener()
-	self.ges_events = {
-		TapClickButton = {
-			GestureRange:new{
-				ges = "tap",
-				range = self.dimen,
-			}
-		},
-	}
+    self.ges_events = {
+        TapClickButton = {
+            GestureRange:new{
+                ges = "tap",
+                range = self.dimen,
+            }
+        },
+    }
 end
 
 function IconButton:onTapClickButton()
-	self.image.invert = true
-	UIManager:setDirty(self.show_parent, "partial")
-	-- make sure button reacts before doing callback
-	UIManager:scheduleIn(0.1, function()
-		self.callback()
-		self.image.invert = false
-		UIManager:setDirty(self.show_parent, "partial")
-	end)
-	return true
+    self.image.invert = true
+    UIManager:setDirty(self.show_parent, "partial")
+    -- make sure button reacts before doing callback
+    UIManager:scheduleIn(0.1, function()
+        self.callback()
+        self.image.invert = false
+        UIManager:setDirty(self.show_parent, "partial")
+    end)
+    return true
 end
 
 function IconButton:onSetDimensions(new_dimen)
-	self.dimen = new_dimen
+    self.dimen = new_dimen
 end
 
 return IconButton