add extension maker

src/core/tags/TreeViewTag.coffee

@@ -12,10 +12,16 @@ class TreeViewItemPrototype extends Ant.OS.GUI.BaseTag
         @setopt "selected", false
         @setopt "treepath", @aid()
     
+    update: (p) ->
+        return unless p
+        return unless p is @get("treepath")
+        @set "open", true
+
     __data__: (v) ->
         return unless v
         @set "nodes", v.nodes if v.nodes
         @set "open", v.open
+        @set "treepath", v.path if v.path
 
     __selected__: (v) ->
         $(@refs.wrapper).removeClass()
@@ -152,7 +158,7 @@ class TreeViewTag extends Ant.OS.GUI.BaseTag
         @setopt "fetch", undefined
         @setopt "treepath", @aid()
         @indexcounter = 0
-    
+
     __selectedItem: (v) ->
         return unless v
         @get("selectedItem").set "selected", false if @get("selectedItem")
@@ -176,6 +182,7 @@ class TreeViewTag extends Ant.OS.GUI.BaseTag
     __data__: (v) ->
         return unless v
         $(@root).empty()
+        @set "treepath", v.path if v.path
         el = $("<#{@get "itemtag"}>").appendTo @root
         el[0].uify undefined
         el[0].set "treeroot", if @is_root() then @ else @get "treeroot"

src/core/tags/tag.coffee

@@ -10,7 +10,7 @@ class Ant.OS.GUI.BaseTag
         @root.get = (k) => @get k
         @root.aid = () => @aid()
         @root.calibrate = () => @calibrate()
-        @root.sync = () => @sync()
+        @root.sync = (d) => @sync(d)
         @mounted = false
         @root.setup = () => @setup()
         @refs = {}
@@ -67,9 +67,9 @@ class Ant.OS.GUI.BaseTag
         return @opts if opt is "*"
         @opts[opt]
 
-    sync: () ->
-        @update()
-        $(@root).children().each () -> @update()
+    sync: (d) ->
+        @update(d)
+        $(@root).children().each () -> @update(d)
         @root
 
     setup: () ->
@@ -116,9 +116,9 @@ Element.prototype.mount = () ->
     $(@).children().each () -> @mount()
     @
 
-Element.prototype.update = () ->
-    return @sync() if @sync
-    $(@).children().each () -> @update()
+Element.prototype.update = (d) ->
+    return @sync(d) if @sync
+    $(@).children().each () -> @update(d)
     @
 
 Element.prototype.uify = (observable) ->

src/core/vfs.coffee

@@ -255,7 +255,8 @@ class RemoteFileHandle extends Ant.OS.API.VFS.BaseFileHandle
             @b64(t)
                 .then (r) =>
                     Ant.OS.API.handle.write @path, r
-                        .then (result) -> resolve result
+                        .then (result) ->
+                            resolve result
                         .catch (e) -> reject e
                 .catch (e) -> reject e