don't crash when video modes are broken

[enigma2.git] / keymapparser.py

diff --git a/keymapparser.py b/keymapparser.py
index 510a47a951c26e761861740d638c93a38a9e5de6..0e544e94b5ef88fdf0f9c357c9e367a17e2003b0 100644 (file)
--- a/keymapparser.py
+++ b/keymapparser.py
@@ -1,68 +1,73 @@
-import xml.dom.minidom
 import enigma
+import xml.etree.cElementTree
 
-from keyids import KEYIDS;
+from keyids import KEYIDS
 
-def readKeymap():
+# these are only informational (for help)...
+from Tools.KeyBindings import addKeyBinding
 
-       p = enigma.eActionMapPtr()
-       enigma.eActionMap.getInstance(p)
+class KeymapError(Exception):
+    def __init__(self, message):
+        self.msg = message
+
+    def __str__(self):
+        return self.msg
+
+def parseKeys(context, filename, actionmap, device, keys):
+       for x in keys.findall("key"):
+               get_attr = x.attrib.get
+               mapto = get_attr("mapto")
+               id = get_attr("id")
+               flags = get_attr("flags")
+
+               flag_ascii_to_id = lambda x: {'m':1,'b':2,'r':4,'l':8}[x]
+
+               flags = sum(map(flag_ascii_to_id, flags))
+
+               assert mapto, "%s: must specify mapto in context %s, id '%s'" % (filename, context, id)
+               assert id, "%s: must specify id in context %s, mapto '%s'" % (filename, context, mapto)
+               assert flags, "%s: must specify at least one flag in context %s, id '%s'" % (filename, context, id)
+
+               if len(id) == 1:
+                       keyid = ord(id) | 0x8000
+               elif id[0] == '\\':
+                       if id[1] == 'x':
+                               keyid = int(id[2:], 0x10) | 0x8000
+                       elif id[1] == 'd':
+                               keyid = int(id[2:]) | 0x8000
+                       else:
+                               raise KeymapError("key id '" + str(id) + "' is neither hex nor dec")
+               else:
+                       try:
+                               keyid = KEYIDS[id]
+                       except:
+                               raise KeymapError("key id '" + str(id) + "' is illegal")
+#                              print context + "::" + mapto + " -> " + device + "." + hex(keyid)
+               actionmap.bindKey(filename, device, keyid, flags, context, mapto)
+               addKeyBinding(filename, keyid, context, mapto, flags)
+
+def readKeymap(filename):
+       p = enigma.eActionMap.getInstance()
        assert p
-       
-       filename = "keymap.xml"
-       
-       try:
-               source = open(filename)
-       except:
-               raise "couldn't open keymap.xml!"
-       
+
+       source = open(filename)
+
        try:
-               dom = xml.dom.minidom.parse(source)
-       except:
-               raise "keymap not well-formed."
-       
-       try:    
-               keymap = dom.getElementsByTagName("keymap")[0]
+               dom = xml.etree.cElementTree.parse(source)
        except:
-               raise "no keymap defined."
-       
-       maps = keymap.getElementsByTagName("map")
-       
-       for cmap in maps:
-               context = str(cmap.getAttribute("context"))
-               assert context != "", "map must have context"
-       
-               def parseKeys(device, keys):
-                       for x in keys.getElementsByTagName("key"):
-                               mapto = str(x.getAttribute("mapto"))
-                               id = x.getAttribute("id")
-                               flags = x.getAttribute("flags")
-                               
-                               flag_ascii_to_id = lambda x: {'m':1,'r':2,'b':4}[x]
-                               
-#                              try:
-                               flags = sum(map(flag_ascii_to_id, flags))
-                               print "-> " + str(flags)
-#                              except:
-#                                      raise str("%s: illegal flags '%s' specificed in context %s, id '%s'" % (filename, flags, context, id))
-                               
-                               assert mapto != "", "%s: must specify mapto in context %s, id '%s'" % (filename, context, id)
-                               assert id != "", "%s: must specify id in context %s, mapto '%s'" % (filename, context, mapto)
-                               assert flags != 0, "%s: must specify at least one flag in context %s, id '%s'" % (filename, context, id)
-                               
-                               if len(id) == 1:
-                                       keyid = ord(id) | 0x8000
-                               else:
-                                       try:
-                                               keyid = KEYIDS[id]
-                                       except:
-                                               raise "key id '" + str(id) + "' is illegal"
-
-                               print context + "::" + mapto + " -> " + device + "." + hex(keyid)
-                               p.bindKey(device, keyid, 7, context, mapto)
-               
-               parseKeys("generic", cmap)
-               
-               for device in cmap.getElementsByTagName("device"):
-                       parseKeys(str(device.getAttribute("name")), device)
+               raise KeymapError("keymap %s not well-formed." % filename)
+
+       keymap = dom.getroot()
+
+       for cmap in keymap.findall("map"):
+               context = cmap.attrib.get("context")
+               assert context, "map must have context"
+
+               for device in cmap.findall("device"):
+                       parseKeys(context, filename, p, device.attrib.get("name"), device)
+
+               parseKeys(context, filename, p, "generic", cmap)
 
+def removeKeymap(filename):
+       p = enigma.eActionMap.getInstance()
+       p.unbindKeyDomain(filename)