report bandwidth, only pull changes

oml/bandwidth.py

@@ -0,0 +1,26 @@
+import state
+from websocket import trigger_event
+
+class Bandwidth(object):
+    up = 0
+    down = 0
+    _last = {}
+
+    def __init__(self):
+        self.update()
+
+    def update(self):
+        bandwidth = {'up': self.up, 'down': self.down}
+        if bandwidth != self._last:
+            trigger_event('bandwidth', bandwidth)
+            self._last = bandwidth
+        self.up = 0
+        self.down = 0
+        state.main.call_later(1, self.update)
+
+    def download(self, amount):
+        self.down += amount * 8
+
+    def upload(self, amount):
+        self.up += amount * 8
+