added command line option for web_assets postprocessing hook

quadtree.py

@@ -81,7 +81,7 @@ def catch_keyboardinterrupt(func):
     return newfunc
 
 class QuadtreeGen(object):
-    def __init__(self, worldobj, destdir, depth=None, imgformat=None, optimizeimg=None):
+    def __init__(self, worldobj, destdir, depth=None, imgformat=None, optimizeimg=None, web_assets_hook=None):
         """Generates a quadtree from the world given into the
         given dest directory
 
@@ -94,6 +94,7 @@ class QuadtreeGen(object):
         assert(imgformat)
         self.imgformat = imgformat
         self.optimizeimg = optimizeimg
+        self.web_assets_hook = web_assets_hook
 
         # Make the destination dir
         if not os.path.exists(destdir):
@@ -182,6 +183,8 @@ class QuadtreeGen(object):
             output.write(index)
 
         if skipjs:
+            if self.web_assets_hook:
+                self.web_assets_hook(self)
             return
 
         # since we will only discover PointsOfInterest in chunks that need to be 
@@ -210,6 +213,9 @@ class QuadtreeGen(object):
             output.write('  // ]},\n')
             output.write('];')
         
+        if self.web_assets_hook:
+            self.web_assets_hook(self)
+        
     def _get_cur_depth(self):
         """How deep is the quadtree currently in the destdir? This glances in
         config.js to see what maxZoom is set to.