Forums Technical Discussion [Python State] Drag and Drop

[Python State] Drag and Drop

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alexwheezy
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Joined: Jan. 2013
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Hi,

I don’t understand how this example should work correctly: $HH/viewer_states/examples/state_dragdrop_demo.hip

I did everything according to the instructions, but attempts from the file manager to drag any text document into the Houdini viewport fails, the persistent error “Invalid drag drop source”.
What needs to be done to make the drag and drop work?
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mabelzile
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Did you try different text files ? Maybe the one you are using contains some bad characters ? You can edit the demo and remove the validation step if you need to. What version are you using ?
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alexwheezy
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mabelzile
Did you try different text files ? Maybe the one you are using contains some bad characters ? You can edit the demo and remove the validation step if you need to. What version are you using ?

Debian GNU/Linux 9.11 (stretch)
Houdini 18.0.355

I tried different methods of creating a text file through the terminal and using the built-in or online text editors (Nano, Sublime, Google Docs) with saving the file with the extension txt or docx or without any extension at all. In all the files that I created, I wrote only two words “Hello, World!”

If you remove the validation check for MIME type data as text/plain, I get the following error.

ERROR
Traceback (most recent call last):
  File "/opt/hfs18.0.355/houdini/python2.7libs/viewerstate/utils.py", line 1147, in wrapper
    return func(*args,**kwargs)
  File "/opt/hfs18.0.355/houdini/python2.7libs/viewerstate/interface.py", line 278, in onDragTest
    return state.onDragTest(kwargs["args"])
  File "opdef:/Object/state_dragdrop_demo?ViewerStateModule", line 48, in onDragTest
  File "/opt/hfs18.0.355/python/lib/python2.7/genericpath.py", line 37, in isfile
    st = os.stat(path)
TypeError: coercing to Unicode: need string or buffer, NoneType found
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alexwheezy
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I do not understand why this example does not work? I used different MIME types and files, but I still get the wrong source.
Edited by alexwheezy - Feb. 15, 2020 02:16:34

Attachments:
Screencast 2020-02-14 12_26_28 (1).gif (116.3 KB)

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