Cleanup: Move reorganize asset files

I'm trying to move away from general files with lots of things in them,
and instead have many small & focused files. I find that easier to
work with since everything has clear responsibilities, even if there is
some minor overhead in managing all these files.
I also try to differentiate more clearly between public and internal
files. So source files and internal headers are in a `intern/`
sub-directory, public functions are in a number of headers one level
higher.
For convenience and to make this compatible with our existing general
headers in `editors/include`, I made the `ED_asset.h` there include all
these public headers.
This is of course a bit of an experiment, let's see how it works in
practice.

Also corrected the name of `ED_asset_can_make_single_from_context()`.

1 files changed, 45 insertions, 0 deletions

diff --git a/source/blender/editors/asset/ED_asset_handle.h b/source/blender/editors/asset/ED_asset_handle.h
new file mode 100644
index 00000000000..c51ce422c25
--- /dev/null
+++ b/source/blender/editors/asset/ED_asset_handle.h
@@ -0,0 +1,45 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup edasset
+ */
+
+#pragma once
+
+#include "DNA_ID_enums.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct AssetHandle;
+struct AssetLibraryReference;
+struct bContext;
+
+const char *ED_asset_handle_get_name(const struct AssetHandle *asset);
+struct AssetMetaData *ED_asset_handle_get_metadata(const struct AssetHandle *asset);
+struct ID *ED_asset_handle_get_local_id(const struct AssetHandle *asset);
+ID_Type ED_asset_handle_get_id_type(const struct AssetHandle *asset);
+int ED_asset_handle_get_preview_icon_id(const struct AssetHandle *asset);
+void ED_asset_handle_get_full_library_path(const struct bContext *C,
+                                           const struct AssetLibraryReference *asset_library,
+                                           const struct AssetHandle *asset,
+                                           char r_full_lib_path[]);
+
+#ifdef __cplusplus
+}
+#endif