1 files changed, 39 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/python/primitives.py b/src/libs/xpcom18a4/python/primitives.py
new file mode 100755
index 00000000..464f12e4
--- /dev/null
+++ b/src/libs/xpcom18a4/python/primitives.py
@@ -0,0 +1,39 @@
+# Various utilities for working with nsISupportsPrimitive
+from xpcom import components
+
+_primitives_map = {}
+
+def _build_map():
+    ifaces = components.interfaces
+    iface = ifaces.nsISupportsPrimitive
+    m = _primitives_map
+    
+    m[iface.TYPE_ID] = ifaces.nsISupportsID
+    m[iface.TYPE_CSTRING] = ifaces.nsISupportsCString
+    m[iface.TYPE_STRING] = ifaces.nsISupportsString
+    m[iface.TYPE_PRBOOL] = ifaces.nsISupportsPRBool
+    m[iface.TYPE_PRUINT8] = ifaces.nsISupportsPRUint8
+    m[iface.TYPE_PRUINT16] = ifaces.nsISupportsPRUint16
+    m[iface.TYPE_PRUINT32] = ifaces.nsISupportsPRUint32
+    m[iface.TYPE_PRUINT64] = ifaces.nsISupportsPRUint64
+    m[iface.TYPE_PRINT16] = ifaces.nsISupportsPRInt16
+    m[iface.TYPE_PRINT32] = ifaces.nsISupportsPRInt32
+    m[iface.TYPE_PRINT64] = ifaces.nsISupportsPRInt64
+    m[iface.TYPE_PRTIME] = ifaces.nsISupportsPRTime
+    m[iface.TYPE_CHAR] = ifaces.nsISupportsChar
+    m[iface.TYPE_FLOAT] = ifaces.nsISupportsFloat
+    m[iface.TYPE_DOUBLE] = ifaces.nsISupportsDouble
+    # Do interface pointer specially - it provides the IID.
+    #m[iface.TYPE_INTERFACE_POINTER] = ifaces.nsISupportsDouble
+    
+def GetPrimitive(ob):
+    if len(_primitives_map)==0:
+        _build_map()
+
+    prin = ob.QueryInterface(components.interfaces.nsISupportsPrimitive)
+    try:
+        better = _primitives_map[prin.type]
+    except KeyError:
+        raise ValueError("This primitive type (%d) is not supported" % (prin.type,))
+    prin = prin.QueryInterface(better)
+    return prin.data