suppress boring message due to absent 'activate' signal handlers of app AND failed drag icon of ImageView #778
Description
Brief summary of issue
Some boring message can be suppressed:
- no 'activate' signal handler for app
- drag_source_set_icon_pixbuf get failed for every tab ImageView (not supported?)
Steps to reproduce the issue
- start shutter
- take some screenshoot
- restart shutter
Error output
(shutter:3640824): GLib-GIO-WARNING **: 16:04:53.464: Your application does not implement g_application_activate() and has no handlers connected to the 'activate' signal. It should do one of these.
Updating fileinfos for key: [1] - Selection_002.png
(shutter:3640824): Gtk-CRITICAL **: 16:04:53.600: gtk_drag_source_set_icon_pixbuf: assertion 'site != NULL' failed
Updating fileinfos for key: [2] - tail -f ~-.awesome-errors _001.png
(shutter:3640824): Gtk-CRITICAL **: 16:04:53.631: gtk_drag_source_set_icon_pixbuf: assertion 'site != NULL' failed
Updating fileinfos for key: [3] - tail -f ~-.awesome-errors _002.png
(shutter:3640824): Gtk-CRITICAL **: 16:04:53.659: gtk_drag_source_set_icon_pixbuf: assertion 'site != NULL' failed
Updating fileinfos for key: [4] - tmux -L taot a -d_001.png
(shutter:3640824): Gtk-CRITICAL **: 16:04:53.740: gtk_drag_source_set_icon_pixbuf: assertion 'site != NULL' failed
Updating fileinfos for key: [5] - tail -f ~-.awesome-errors _003.png
(shutter:3640824): Gtk-CRITICAL **: 16:04:53.760: gtk_drag_source_set_icon_pixbuf: assertion 'site != NULL' failed
Updating fileinfos for key: [6] - Tooltip_001.png
(shutter:3640824): Gtk-CRITICAL **: 16:04:53.931: gtk_drag_source_set_icon_pixbuf: assertion 'site != NULL' failed
Extra information, such as Shutter version, display server in use (Xorg or Wayland), operating system and ideas for how to solve:
- add dummy 'activate' handler to app
- comment out DO-NOT-WORK drag icon for ImageView before any fix applied.