Show original image URI on copying images

1 files changed, 28 insertions, 0 deletions

diff --git a/sphinx/environment/adapters/asset.py b/sphinx/environment/adapters/asset.py
new file mode 100644
index 000000000..a373205d2
--- /dev/null
+++ b/sphinx/environment/adapters/asset.py
@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+"""
+    sphinx.environment.adapters.assets
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    Assets adapter for sphinx.environment.
+
+    :copyright: Copyright 2007-2017 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+if False:
+    # For type annotation
+    from sphinx.environment import BuildEnvironment  # NOQA
+
+
+class ImageAdapter(object):
+    def __init__(self, env):
+        # type: (BuildEnvironment) -> None
+        self.env = env
+
+    def get_original_image_uri(self, name):
+        # type: (unicode) -> unicode
+        """Get the original image URI."""
+        while name in self.env.original_image_uri:
+            name = self.env.original_image_uri[name]
+
+        return name