Drag & drop feature:

You now can drop a .blend inside blender window to open it.

Implementation notes:
- Added call to extract icon type for files. Code re-used from
  space_file
- External files that get dropped set icon types too.
  Drop box polls can check for this.
- Also enabled setting op-context for drop operators, this was
  needed to prevent filewindow to open.

2 files changed, 86 insertions, 52 deletions

diff --git a/source/blender/editors/space_file/filelist.c b/source/blender/editors/space_file/filelist.c
index 476a887ee87..ce4b5bdd4de 100644
--- a/source/blender/editors/space_file/filelist.c
+++ b/source/blender/editors/space_file/filelist.c
@@ -69,10 +69,11 @@
 
 #include "PIL_time.h"
 
-
 #include "WM_api.h"
 #include "WM_types.h"
 
+#include "UI_resources.h"
+
 #include "filelist.h"
 
 /* max length of library group name within filesel */
@@ -360,7 +361,7 @@ void filelist_filter(FileList* filelist)
 	}
 }
 
-void filelist_init_icons()
+void filelist_init_icons(void)
 {
 	short x, y, k;
 	ImBuf *bbuf;
@@ -383,7 +384,7 @@ void filelist_init_icons()
 	}
 }
 
-void filelist_free_icons()
+void filelist_free_icons(void)
 {
 	int i;
 	for (i=0; i < SPECIAL_IMG_MAX; ++i) {
@@ -720,6 +721,87 @@ void filelist_setfilter_types(struct FileList* filelist, const char *filter_glob
 	BLI_strncpy(filelist->filter_glob, filter_glob, sizeof(filelist->filter_glob));
 }
 
+static int file_extension_type(char *relname)
+{
+	if(BLO_has_bfile_extension(relname)) {
+		return BLENDERFILE;
+	} else if(BLI_testextensie(relname, ".py")) {
+		return PYSCRIPTFILE;
+	} else if(BLI_testextensie(relname, ".txt")
+			  || BLI_testextensie(relname, ".glsl")
+			  || BLI_testextensie(relname, ".data")) {
+		return TEXTFILE;
+	} else if( BLI_testextensie(relname, ".ttf")
+			  || BLI_testextensie(relname, ".ttc")
+			  || BLI_testextensie(relname, ".pfb")
+			  || BLI_testextensie(relname, ".otf")
+			  || BLI_testextensie(relname, ".otc")) {
+		return FTFONTFILE;			
+	} else if(BLI_testextensie(relname, ".btx")) {
+		return BTXFILE;
+	} else if(BLI_testextensie(relname, ".dae")) {
+		return COLLADAFILE;
+	} else if(BLI_testextensie_array(relname, imb_ext_image)
+			  || (G.have_quicktime && BLI_testextensie_array(relname, imb_ext_image_qt))) {
+		return IMAGEFILE;			
+	} else if(BLI_testextensie_array(relname, imb_ext_movie)) {
+		return MOVIEFILE;			
+	} else if(BLI_testextensie_array(relname, imb_ext_audio)) {
+		return SOUNDFILE;
+	} 
+	return 0;
+}
+
+int ED_file_extension_icon(char *relname)
+{
+	int type= file_extension_type(relname);
+	
+	if (type == BLENDERFILE)
+		return ICON_FILE_BLEND;
+	else if (type ==  IMAGEFILE)
+		return ICON_FILE_IMAGE;
+	else if (type ==  MOVIEFILE)
+		return ICON_FILE_MOVIE;
+	else if (type ==  PYSCRIPTFILE)
+		return ICON_FILE_SCRIPT;
+	else if (type ==  PYSCRIPTFILE)
+		return ICON_FILE_SCRIPT;
+	else if (type ==  SOUNDFILE) 
+		return ICON_FILE_SOUND;
+	else if (type ==  FTFONTFILE) 
+		return ICON_FILE_FONT;
+	else if (type ==  BTXFILE) 
+		return ICON_FILE_BLANK;
+	else if (type ==  COLLADAFILE) 
+		return ICON_FILE_BLANK;
+	
+	return ICON_FILE_BLANK;
+}
+
+void filelist_setfiletypes(struct FileList* filelist)
+{
+	struct direntry *file;
+	int num;
+	
+	file= filelist->filelist;
+	
+	for(num=0; num<filelist->numfiles; num++, file++) {
+		file->type= file->s.st_mode;	/* restore the mess below */ 
+		
+		/* Don't check extensions for directories */ 
+		if (file->type & S_IFDIR) {
+			continue;
+		}
+		file->flags = file_extension_type(file->relname);
+		
+		if(filelist->filter_glob
+		   && BLI_testextensie_glob(file->relname, filelist->filter_glob)) {
+			file->flags= OPERATORFILE;
+		}
+		
+	}
+}
+
 static void filelist_read_dir(struct FileList* filelist)
 {
 	char wdir[FILE_MAX];
@@ -734,7 +816,7 @@ static void filelist_read_dir(struct FileList* filelist)
 	filelist->numfiles = BLI_getdir(filelist->dir, &(filelist->filelist));
 
 	if(!chdir(wdir)) {} /* fix warning about not checking return value */
-	filelist_setfiletypes(filelist, G.have_quicktime);
+	filelist_setfiletypes(filelist);
 	filelist_filter(filelist);
 }
 
@@ -790,53 +872,6 @@ void filelist_parent(struct FileList* filelist)
 	filelist_readdir(filelist);
 }
 
-void filelist_setfiletypes(struct FileList* filelist, short has_quicktime)
-{
-	struct direntry *file;
-	int num;
-
-	file= filelist->filelist;
-
-	for(num=0; num<filelist->numfiles; num++, file++) {
-		file->flags= 0;
-		file->type= file->s.st_mode;	/* restore the mess below */ 
-
-			/* Don't check extensions for directories */ 
-		if (file->type & S_IFDIR) {
-			continue;
-		}
-
-		if(BLO_has_bfile_extension(file->relname)) {
-			file->flags |= BLENDERFILE;
-		} else if(BLI_testextensie(file->relname, ".py")) {
-				file->flags |= PYSCRIPTFILE;
-		} else if(BLI_testextensie(file->relname, ".txt")
-					|| BLI_testextensie(file->relname, ".glsl")
-					|| BLI_testextensie(file->relname, ".data")) {
-				file->flags |= TEXTFILE;
-		} else if( BLI_testextensie(file->relname, ".ttf")
-					|| BLI_testextensie(file->relname, ".ttc")
-					|| BLI_testextensie(file->relname, ".pfb")
-					|| BLI_testextensie(file->relname, ".otf")
-					|| BLI_testextensie(file->relname, ".otc")) {
-				file->flags |= FTFONTFILE;			
-		} else if(BLI_testextensie(file->relname, ".btx")) {
-				file->flags |= BTXFILE;
-		} else if(BLI_testextensie(file->relname, ".dae")) {
-			file->flags |= COLLADAFILE;
-		} else if(BLI_testextensie_array(file->relname, imb_ext_image)
-					|| (has_quicktime && BLI_testextensie_array(file->relname, imb_ext_image_qt))) {
-				file->flags |= IMAGEFILE;			
-		} else if(BLI_testextensie_array(file->relname, imb_ext_movie)) {
-			file->flags |= MOVIEFILE;			
-		} else if(BLI_testextensie_array(file->relname, imb_ext_audio)) {
-			file->flags |= SOUNDFILE;
-		} else if(filelist->filter_glob
-					&& BLI_testextensie_glob(file->relname, filelist->filter_glob)) {
-			file->flags |= OPERATORFILE;
-		}
-	}
-}
 
 void filelist_swapselect(struct FileList* filelist)
 {
diff --git a/source/blender/editors/space_file/filelist.h b/source/blender/editors/space_file/filelist.h
index eb1c46d652e..6ea91746b85 100644
--- a/source/blender/editors/space_file/filelist.h
+++ b/source/blender/editors/space_file/filelist.h
@@ -69,7 +69,6 @@ void				filelist_readdir(struct FileList* filelist);
 
 int					filelist_empty(struct FileList* filelist);
 void				filelist_parent(struct FileList* filelist);
-void				filelist_setfiletypes(struct FileList* filelist, short has_quicktime);
 
 
 int					filelist_islibrary (struct FileList* filelist, char* dir, char* group);