paging: set complete item count for folders

allows proper paging for yamaha AVRs

ycast/server.py

@@ -39,6 +39,7 @@ def get_directories_page(subdir, directories, requestargs):
         return page
     for directory in get_paged_elements(directories, requestargs):
         page.add(vtuner.Directory(directory, url_for(subdir, _external=True, directory=directory)))
+    page.set_count(len(directories))
     return page
 
 
@@ -49,6 +50,7 @@ def get_stations_page(stations, requestargs):
         return page
     for station in get_paged_elements(stations, requestargs):
         page.add(station.to_vtuner())
+    page.set_count(len(stations))
     return page
 
 

ycast/vtuner.py

@@ -26,11 +26,13 @@ def add_bogus_parameter(url):
 class Page:
     def __init__(self):
         self.items = []
-        self.count = 0
+        self.count = -1
 
     def add(self, item):
         self.items.append(item)
-        self.count = len(self.items)
+
+    def set_count(self, count):
+        self.count = count
 
     def to_xml(self):
         xml = etree.Element('ListOfItems')