2nd try ;)

[enigma2.git] / lib / python / Components / Sources / List.py

diff --git a/lib/python/Components/Sources/List.py b/lib/python/Components/Sources/List.py
index d7221296f7cfa364ee89bead5332bf8c50dfb96e..ef9c1c8960e9c9d0a37e828b619612e449fc7f56 100644 (file)
--- a/lib/python/Components/Sources/List.py
+++ b/lib/python/Components/Sources/List.py
@@ -16,6 +16,7 @@ to generate HTML."""
                self.item_height = item_height
                self.fonts = fonts
                self.disable_callbacks = False
+               self.enableWrapAround = enableWrapAround
 
        def setList(self, list):
                self.__list = list
@@ -26,6 +27,9 @@ to generate HTML."""
        def entry_changed(self, index):
                if not self.disable_callbacks:
                        self.downstream_elements.entry_changed(self, index)
+                       
+       def count(self):
+               return len(self.__list)
 
        def selectionChanged(self, index):
                if self.disable_callbacks:
@@ -43,17 +47,34 @@ to generate HTML."""
        def setIndex(self, index):
                if self.master is not None:
                        self.master.index = index
+                       self.selectionChanged(index)
 
        @cached
        def getIndex(self):
                if self.master is not None:
                        return self.master.index
                else:
-                       return -1
+                       return None
 
        setCurrentIndex = setIndex
 
        index = property(getIndex, setIndex)
+       
+       def selectNext(self):
+               if self.getIndex() + 1 >= self.count():
+                       if self.enableWrapAround:
+                               self.index = 0
+               else:
+                       self.index += 1
+               self.setIndex(self.index)
+
+       def selectPrevious(self):
+               if self.getIndex() - 1 < 0:
+                       if self.enableWrapAround:
+                               self.index = self.count() - 1
+               else:
+                       self.index -= 1
+               self.setIndex(self.index)
 
        def updateList(self, list):
                """Changes the list without changing the selection or emitting changed Events"""