[Bugs] #4418 sugar UNSP: Copying an image does not work (was: Paint only allows 'png' files)

[Sugar Labs Bugs]

#4418: Copying an image does not work
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    Reporter:  dsd                        |          Owner:  humitos    
        Type:  defect                     |         Status:  accepted   
    Priority:  Unspecified by Maintainer  |      Milestone:  0.98       
   Component:  sugar                      |        Version:  Unspecified
    Severity:  Unspecified                |       Keywords:  r?         
Distribution:  Unspecified                |   Status_field:  Unconfirmed
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Changes (by erikos):

  * component:  Paint => sugar


Old description:

> Tested on 13.1.0 build 28 on XO-4, copying an image from Browse or Paint
> doesn't work.
>
> shell.log includes an exception:
> {{{
> clipboardpanelwindow.py line 87, in _owner_change_cb
> data_hash = hash(selection.get_data())
> AttributeError: NoneType object has no attribute 'get_data'
> }}}

New description:

 Tested on 13.1.0 build 28 on XO-4, copying an image from Browse or Paint
 doesn't work.

 shell.log includes an exception:
 {{{
 clipboardpanelwindow.py line 87, in _owner_change_cb
 data_hash = hash(selection.get_data())
 AttributeError: NoneType object has no attribute 'get_data'
 }}}

 For copying a clipping from Paint the steps are as follows:

 - open Paint and draw something

 - select parts of the drawing

 - in the edit section push the copy button

 ---> in the clipboard an entry is created that has the copy icon and is
 labelled image clipping, it has only one option for opening it

 - try to resume that entry

 ---> Paint is opened but the canvas is empty

 - go to the edit toolbar and push the paste button

 ---> the clipping is pasted fine into Paint



 For copying a clipping from Browse the steps are as follows:

 - click on an image in Browse (e.g. Wikipedia picture, a Google searched
 picture...) and select 'Copy image' in the Palette

 ---> in the clipboard an entry is created that has the copy icon and is
 labelled image clipping, it has only one option for opening it

 - select 'open' in the clipping Palette

 ---> Paint is opened but the canvas is blank

 - go to the edit toolbar and push the paste button

 ---> the clipping is pasted fine into Paint

--

Comment:

 I think this ticket went a bit off track. First of all we should define
 the use case again from the original request from Daniel:

 He reported that he can not copy an image from Browse or Paint (this
 copying is using the clipboard). I added test cases to the description.

-- 
Ticket URL: <http://bugs.sugarlabs.org/ticket/4418#comment:8>
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