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[Timothy Arceri <344228@xxxxxxxxxxxxxxxxxx>]

** Changed in: hundredpapercuts
       Status: Fix Committed => Fix Released

** Changed in: gnome-control-center (Ubuntu)
       Status: Triaged => Fix Released

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https://bugs.launchpad.net/bugs/344228

Title:
  Deleting an image that's used as a desktop wallpaper removed it as a
  wallpaper without notice

Status in GNOME Control Center:
  Fix Released
Status in One Hundred Paper Cuts:
  Fix Released
Status in “firefox-3.5” package in Ubuntu:
  Invalid
Status in “gnome-control-center” package in Ubuntu:
  Fix Released

Bug description:
  I saved an image to my desktop (it was the django pony wallpaper
  (http://www.djangopony.com/)). I then set this as the desktop
  wallpaper by right clicking on the desktop and selecting "Change
  Desktop Wallpaper". A while later (today), I wanted to clean up my
  desktop and right clicked on the image, and selected "Delete". A popup
  warned me that this would remove the image. I clicked OK and the image
  disappeared. However my desktop wallpaper changed immediatly to a dull
  brown colour.

  Obviously there is only one copy of the image stored when you set
  something as the wallpaper, however I thought it was otherwise. I'd
  suggest that when someone sets something as the wallpaper, it stores a
  copy of that image somewhere else to prevent things like this from
  happening.

  #####

  Wallpapers should only change when users change them explicitly, or when they
  modify the source image. Some user stories exercising the appropriate behavior:

      Lola downloads a photograph of her boyfriend, todd.jpg, and sets the image
  as her wallpaper, either via appearance settings, or within EoG, Firefox, etc.
  If Lola opens the image afterwards in GIMP and does color correction, red-eye
  elimination, and crops the photo, these changes should be reflected in the
  desktop wallpaper. However, if Lola moves the photo from ~/Downloads to
  ~/Pictures, her wallpaper does not change. Later, if she renames ~/Pictures
  to ~/Photos, her wallpaper does not change. If she moves the photo to another
  partition, her wallpaper does not change.

      Celine saves a Facebook photo to her Desktop by dragging it from her
  browser window onto her Desktop. She then opens her appearance preferences and
  sets the image as her wallpaper. The next day, Celine sees an file named
  hd8dh8ed_djs9dh.jpg on her Desktop. She selects it and presses her delete key
  and the file is deleted. Her wallpaper does not fade to black at this point--it remains unchanged.

  The crucial thing we are preventing here is the wallpaper changing without
  explicit user consent. We are only focused on the active wallpaper image -- not the
  entire set of photos that the user can choose from when opening her Appearance
  preferences. Most users don't think like programs do, so may not
  understand why deleting a file (or worse, a seemingly unrelated folder) changes
  their wallpaper.

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