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-rw-r--r--layout/generic/FrameClass.py28
1 files changed, 28 insertions, 0 deletions
diff --git a/layout/generic/FrameClass.py b/layout/generic/FrameClass.py
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+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+# Leaf constants to pass to Frame's leafness argument.
+LEAF = "Leaf"
+NOT_LEAF = "NotLeaf"
+DYNAMIC_LEAF = "DynamicLeaf"
+
+
+class FrameClass:
+ def __init__(self, cls):
+ self.cls = cls
+
+
+class Frame(FrameClass):
+ def __init__(self, cls, ty, leafness):
+ FrameClass.__init__(self, cls)
+ self.ty = ty
+ self.leafness = leafness
+ self.is_concrete = True
+
+
+class AbstractFrame(FrameClass):
+ def __init__(self, cls):
+ FrameClass.__init__(self, cls)
+ self.is_concrete = False