Auto generate MediaFeatureNames, its macros and MediaTypeNames

Source/build/scripts/make_media_features.py

+#!/usr/bin/env python
+
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import media_feature_symbol
+import in_generator
+import template_expander
+import name_utilities
+import sys
+
+
+class MakeMediaFeaturesWriter(in_generator.Writer):
+    defaults = {
+        'Conditional': None,  # FIXME: Add support for Conditional.
+        'RuntimeEnabled': None,  # What should we do for runtime-enabled features?

[kenneth.r.christiansen, 2014/03/04 12:09:01]

I guess when disabled they should be treated like unknown media query features
etc

+        'ImplementedAs': None,
+    }
+    filters = {
+        'symbol': media_feature_symbol.getMediaFeatureSymbolWithSuffix(''),
+        'to_macro_style': name_utilities.to_macro_style,
+    }
+    default_parameters = {
+        'namespace': '',
+        'export': '',
+    }
+
+    def __init__(self, in_file_path):
+        super(MakeMediaFeaturesWriter, self).__init__(in_file_path)
+
+        self._outputs = {
+            ('MediaFeatures.h'): self.generate_header,
+        }
+        self._template_context = {
+            'namespace': '',
+            'export': '',
+            'entries': self.in_file.name_dictionaries,
+        }
+
+    @template_expander.use_jinja("MediaFeatures.h.tmpl", filters=filters)
+    def generate_header(self):
+        return self._template_context
+
+if __name__ == "__main__":
+    in_generator.Maker(MakeMediaFeaturesWriter).main(sys.argv)