[IPython-dev] Paste images into the notebook

Juergen Hasch python@elbonia...
Sat Feb 8 10:47:02 CST 2014


I have updated this to be more useful and much faster.
It was very slow because the code snipped entered edit mode to render the graphics. Once I skipped this, it is actually
fast.

You can find the very experimental extension as clipboard_dragdrop.js in the folder usability here:
https://github.com/ipython-contrib

A short demo video is here:
http://youtu.be/buAL1bTZ73c


Am 08.02.2014 17:32, schrieb Abraham D. Flaxman:
> This works for me, and it is something I've thought would be useful for a while now.  So thanks!  I put an example notebook together using it here: http://nbviewer.ipython.org/gist/aflaxman/8886274
> 
> I agree that it is slow, but I want it so much I'm willing to wait.  But do you have any thoughts on how it can go faster?
> 
> --Abie
> 
> 
> -----Original Message-----
> From: ipython-dev-bounces@scipy.org [mailto:ipython-dev-bounces@scipy.org] On Behalf Of Juergen Hasch
> Sent: Friday, February 07, 2014 1:57 PM
> To: IPython developers list
> Subject: Re: [IPython-dev] Paste images into the notebook
> 
> This is my hack. Slow as hell for anything larger than some 10k.
> 
> window.addEventListener('paste', function(event){
>     var cell = IPython.notebook.get_selected_cell();
>     var items = event.clipboardData.items;
>     for (var i = 0; i < items.length; ++i) {
>         if (items[i].kind == 'file' && items[i].type.indexOf('image/') !== -1) {
>             var blob = items[i].getAsFile();
>             window.URL = window.URL || window.webkitURL;
>             var blobUrl = window.URL.createObjectURL(blob);
>             var img = document.createElement('img');
>             img.src = blobUrl;
> 
>             var reader = new FileReader();
>             reader.onload = ( function(evt) {
>                 var new_cell = IPython.notebook.insert_cell_below('markdown');
>                 var str = '<img src="' + evt.target.result + '">';
>                 new_cell.set_text(str);
>                 new_cell.edit_mode();
>                 new_cell.execute();
>                 } );
>             reader.readAsDataURL(blob);
>         }
>     }
> });
> 
> 
> 
> Am 07.02.2014 22:48, schrieb Raymond Yee:
>> Juergen,
>>
>> Can you publish  your code?  I'm definitely interested in this feature 
>> even if it's hacky.
>>
>> Thanks,
>>
>> -Raymond
>>
>> On 2/7/14 1:47 PM, Juergen Hasch wrote:
>>> Am 07.02.2014 22:29, schrieb Matthias BUSSONNIER:
>>>> Hi there,
>>>>
>>>>
>>>> Le 7 févr. 2014 à 21:04, Edeler, Torsten a écrit :
>>>>
>>>>> Hi everybody.
>>>>> I'm playing around with the notebook.
>>>>> It is fantastic! Thank you for this amazing piece of software!
>>>>>  
>>>>> I'm just missing the ability to paste images directly from the clipboard (e.g. screenshots) into the notebook. My OS is Win7. How do I make that work?
>>>>>  
>>>> Short answer is you can't. 
>>> Actually, it works :-)
>>>
>>> It only takes around 15 lines of Javascript code to implement this as clipboard paste event for Chrome.
>>> All you have to do is receive the image from clipboard, create a markdown cell, and paste the image as base64.
>>>
>>> Not efficient and slow as hell for larger images, so I won't say this 
>>> is a viable solution. Still, technically it can be done.
>>>
>>>
>>>
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>>
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> 
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