[mutter/gnome-3-34] core: Define specific image formats to be stored in the clipboard manager

[Robert Mader <rmader src gnome org>]

commit 59da900a457ae3ee3d5369f95e298b09abc35743
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sat Nov 16 13:20:19 2019 +0100

    core: Define specific image formats to be stored in the clipboard manager
    
    And order those preferences in order of lossiness (jpeg < png < bmp). This
    avoids us from prefering other formats that are not useful or widely
    recognized.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/939
    
    (cherry picked from commit 832c0fb0ea79d4cf904b1519b11ef0b11cbbfbdc)

 src/core/meta-clipboard-manager.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/src/core/meta-clipboard-manager.c b/src/core/meta-clipboard-manager.c
index 3bda19a19..639e5a0e0 100644
--- a/src/core/meta-clipboard-manager.c
+++ b/src/core/meta-clipboard-manager.c
@@ -32,7 +32,9 @@ static struct {
   const char *mimetype_glob;
   ssize_t max_transfer_size;
 } supported_mimetypes[] = {
-  { "image/*",                  MAX_IMAGE_SIZE },
+  { "image/jpeg",               MAX_IMAGE_SIZE },
+  { "image/png",                MAX_IMAGE_SIZE },
+  { "image/bmp",                MAX_IMAGE_SIZE },
   { "text/plain",               MAX_TEXT_SIZE },
   { "text/plain;charset=utf-8", MAX_TEXT_SIZE },
 };