[Bf-blender-cvs] [898d95500e3] asset-browser: Support getting data about active file/asset from BPY

[Julian Eisel]

Commit: 898d95500e3e55fa85d9c4427359ba7b2f758cda
Author: Julian Eisel
Date:   Fri Nov 20 00:18:48 2020 +0100
Branches: asset-browser
https://developer.blender.org/rB898d95500e3e55fa85d9c4427359ba7b2f758cda

Support getting data about active file/asset from BPY

Adds a label to the sidebar showing the name of the active file.

===================================================================

M	release/scripts/startup/bl_ui/space_filebrowser.py
M	source/blender/editors/space_file/space_file.c
M	source/blender/makesrna/RNA_access.h
M	source/blender/makesrna/intern/rna_space.c

===================================================================

diff --git a/release/scripts/startup/bl_ui/space_filebrowser.py b/release/scripts/startup/bl_ui/space_filebrowser.py
index e03aa71662a..9df46d388c7 100644
--- a/release/scripts/startup/bl_ui/space_filebrowser.py
+++ b/release/scripts/startup/bl_ui/space_filebrowser.py
@@ -553,6 +553,24 @@ class FILEBROWSER_MT_context_menu(Menu):
         layout.prop_menu_enum(params, "sort_method")
 
 
+class ASSETBROWSER_PT_metadata(Panel):
+    bl_space_type = 'FILE_BROWSER'
+    bl_region_type = 'TOOL_PROPS'
+    bl_label = "Asset Meta-data"
+    bl_options = {'HIDE_HEADER'}
+
+    @classmethod
+    def poll(cls, context):
+        return panel_poll_is_asset_browsing(context)
+
+    def draw(self, context):
+        layout = self.layout
+        active_file = context.active_file
+
+        if active_file:
+            layout.label(text=active_file.name)
+
+
 classes = (
     FILEBROWSER_HT_header,
     FILEBROWSER_PT_display,
@@ -570,6 +588,7 @@ classes = (
     FILEBROWSER_MT_view,
     FILEBROWSER_MT_select,
     FILEBROWSER_MT_context_menu,
+    ASSETBROWSER_PT_metadata,
 )
 
 if __name__ == "__main__":  # only for live edit.
diff --git a/source/blender/editors/space_file/space_file.c b/source/blender/editors/space_file/space_file.c
index e65a134e578..460adb2b501 100644
--- a/source/blender/editors/space_file/space_file.c
+++ b/source/blender/editors/space_file/space_file.c
@@ -754,6 +754,30 @@ static void file_space_subtype_item_extend(bContext *UNUSED(C),
   RNA_enum_items_add(item, totitem, rna_enum_space_file_browse_mode_items);
 }
 
+const char *file_context_dir[] = {"active_file", NULL};
+
+static int /*eContextResult*/ file_context(const bContext *C,
+                                           const char *member,
+                                           bContextDataResult *result)
+{
+  bScreen *screen = CTX_wm_screen(C);
+  SpaceFile *sfile = CTX_wm_space_file(C);
+  FileSelectParams *params = ED_fileselect_get_active_params(sfile);
+
+  BLI_assert(!ED_area_is_global(CTX_wm_area(C)));
+
+  if (CTX_data_dir(member)) {
+    CTX_data_dir_set(result, file_context_dir);
+    return CTX_RESULT_OK;
+  }
+  else if (CTX_data_equals(member, "active_file")) {
+    FileDirEntry *file = filelist_file(sfile->files, params->active_file);
+    CTX_data_pointer_set(result, &screen->id, &RNA_FileSelectEntry, file);
+    return CTX_RESULT_OK;
+  }
+  return CTX_RESULT_MEMBER_NOT_FOUND;
+}
+
 /* only called once, from space/spacetypes.c */
 void ED_spacetype_file(void)
 {
@@ -776,6 +800,7 @@ void ED_spacetype_file(void)
   st->space_subtype_item_extend = file_space_subtype_item_extend;
   st->space_subtype_get = file_space_subtype_get;
   st->space_subtype_set = file_space_subtype_set;
+  st->context = file_context;
 
   /* regions: main window */
   art = MEM_callocN(sizeof(ARegionType), "spacetype file region");
diff --git a/source/blender/makesrna/RNA_access.h b/source/blender/makesrna/RNA_access.h
index f2827b1cfef..7acdc114a78 100644
--- a/source/blender/makesrna/RNA_access.h
+++ b/source/blender/makesrna/RNA_access.h
@@ -252,6 +252,7 @@ extern StructRNA RNA_FModifierStepped;
 extern StructRNA RNA_FaceMap;
 extern StructRNA RNA_FieldSettings;
 extern StructRNA RNA_FileBrowserFSMenuEntry;
+extern StructRNA RNA_FileSelectEntry;
 extern StructRNA RNA_FileSelectParams;
 extern StructRNA RNA_FloatAttribute;
 extern StructRNA RNA_FloatAttributeValue;
diff --git a/source/blender/makesrna/intern/rna_space.c b/source/blender/makesrna/intern/rna_space.c
index afdf049edde..b20dba0c86d 100644
--- a/source/blender/makesrna/intern/rna_space.c
+++ b/source/blender/makesrna/intern/rna_space.c
@@ -2531,6 +2531,18 @@ static const EnumPropertyItem *rna_FileSelectParams_asset_repository_itemf(
   return item;
 }
 
+static void rna_FileBrowser_FileSelectEntry_name_get(PointerRNA *ptr, char *value)
+{
+  const FileDirEntry *entry = ptr->data;
+  strcpy(value, entry->name);
+}
+
+static int rna_FileBrowser_FileSelectEntry_name_length(PointerRNA *ptr)
+{
+  const FileDirEntry *entry = ptr->data;
+  return (int)strlen(entry->name);
+}
+
 static void rna_FileSelectParams_asset_category_set(PointerRNA *ptr, uint64_t value)
 {
   FileSelectParams *params = ptr->data;
@@ -5870,6 +5882,23 @@ static void rna_def_fileselect_idfilter(BlenderRNA *brna)
   }
 }
 
+static void rna_def_fileselect_entry(BlenderRNA *brna)
+{
+  PropertyRNA *prop;
+  StructRNA *srna = RNA_def_struct(brna, "FileSelectEntry", NULL);
+  RNA_def_struct_sdna(srna, "FileDirEntry");
+  RNA_def_struct_ui_text(srna, "File Select Entry", "A file viewable in the File Browser");
+
+  prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_funcs(prop,
+                                "rna_FileBrowser_FileSelectEntry_name_get",
+                                "rna_FileBrowser_FileSelectEntry_name_length",
+                                NULL);
+  RNA_def_property_ui_text(prop, "Name", "");
+  RNA_def_property_clear_flag(prop, PROP_EDITABLE);
+  RNA_def_struct_name_property(srna, prop);
+}
+
 static void rna_def_fileselect_params(BlenderRNA *brna)
 {
   StructRNA *srna;
@@ -6961,6 +6990,7 @@ void RNA_def_space(BlenderRNA *brna)
   rna_def_space_image(brna);
   rna_def_space_sequencer(brna);
   rna_def_space_text(brna);
+  rna_def_fileselect_entry(brna);
   rna_def_fileselect_params(brna);
   rna_def_fileselect_idfilter(brna);
   rna_def_filemenu_entry(brna);