integrate into pyvim

[clach04]

https://github.com/prompt-toolkit/pyvim

Semi related to #22

1. ptpyvim; See if can import pyvim and monkey patch file IO, ideally with note tree API (rather than cypher API so as to allow future use of virtual file system).
2. write a pyvim io backend, https://github.com/prompt-toolkit/pyvim/blob/master/pyvim/io/backends.py (also see 1 above).
   • Editor.io_backends https://github.com/prompt-toolkit/pyvim/blob/44937c508397486722e2e6d8c044792a818acfe3/pyvim/editor.py#L84
   • ✔️ done in 6339cc7

Also see alternatives https://github.com/prompt-toolkit/pyvim#alternatives
#35

load from command line seems fine, as does saving.

Prompting for password experiments ONLY work when loading from command line (pre "gui" init?). Get coroutine errors (that are garbled):

    diff --git a/puren_tonbo/tools/ptpyvim.py b/puren_tonbo/tools/ptpyvim.py
    index cc386f0..aed8444 100644
    --- a/puren_tonbo/tools/ptpyvim.py
    +++ b/puren_tonbo/tools/ptpyvim.py
    @@ -21,6 +21,10 @@ from pyvim.io import FileIO, DirectoryIO, HttpIO, GZipFileIO
     from pyvim.io.backends import ENCODINGS, _auto_decode
     from pyvim.io import EditorIO

    +from prompt_toolkit import prompt
    +from prompt_toolkit.shortcuts import input_dialog
    +
    +
     import puren_tonbo


    @@ -87,8 +91,25 @@ class PureTonboFileIO(EditorIO):
             Read/decrypt file from disk.
             """
             #import web_pdb; web_pdb.set_trace()  # https://github.com/romanvm/python-web-pdb
    -        if not password:
    -            raise puren_tonbo.BadPassword('Missing password, set OS env PT_PASSWORD')
    +        global password
    +        while not password:
    +            #password = prompt('Enter password: ', is_password=True)
    +            password = input_dialog(
    +                title="Password dialog example",
    +                text="Please type your password:",
    +                password=True,
    +            ).run()
    +            #raise puren_tonbo.BadPassword('Missing password, set OS env PT_PASSWORD')
    +            """ this code works fine from command line, but :edit ... causes....
    +
    +
    +            `:e filename.chi` (or any file supported by PT) fails with:
    +
    +                ...\site-packages\pyvim\editor_buffer.py:112: RuntimeWarning: coroutine 'Application.run_async' was never awaited
    +                Cannot read 'test.chi': RuntimeError('This event loop is already running')
    +                Rtest.cha   ng: Enable tracemal    to get the object allocation traceback
    +
    +            """

[clach04]

Posted 6339cc7 to show possibilities.

[clach04]

Note some minor UX issues with pyvim:

• Implement quit to match vim prompt-toolkit/pyvim#125 ZZ for save and quit not working
• Adding 'ZZ' to .pyvimrc prompt-toolkit/pyvim#122 ZZ for save and quit not working
• :set ignorecase and :set ic ignored prompt-toolkit/pyvim#147 ignore case issues
• Paste from Windows/System Clipboard doesn't work, using mouse to paste moves cursor - TODO disable pyvim mouse support? Something I typically do with vim.

Opened #46 with above

[clach04]

Not yet figured out how to add a prompt, but have figured out a hack to display a message to the screen from the io backend plugin:

diff --git a/puren_tonbo/tools/ptpyvim.py b/puren_tonbo/tools/ptpyvim.py
index 8ef30db..ae5f3f9 100644
--- a/puren_tonbo/tools/ptpyvim.py
+++ b/puren_tonbo/tools/ptpyvim.py
@@ -59,6 +59,9 @@ password = 'password'  # FIXME! debug hack for testing, bare minimum is pick up
 if not isinstance(password, bytes):
     password = password.encode('us-ascii')

+# Create new editor instance.
+editor = Editor()  # global hack!
+

 class PureTonboFileIO(EditorIO):
     """
@@ -85,6 +88,7 @@ class PureTonboFileIO(EditorIO):
         """
         Read/decrypt file from disk.
         """
+        editor.show_message('%s' % 'my messahe')
         location = os.path.expanduser(location)  # revisit this, future virtual file system support

         handler_class = puren_tonbo.filename2handler(location)
@@ -140,8 +144,10 @@ def main(argv=None):
     # TODO any argument processing?
     locations = argv[1:]

+    """
     # Create new editor instance.
     editor = Editor()
+    """

     # monkey patch PT support into Editor instance
     editor.io_backends = [

[clach04]

• https://python-prompt-toolkit.readthedocs.io/en/stable/pages/asking_for_input.html?highlight=password%20#password-input
• https://github.com/prompt-toolkit/python-prompt-toolkit/search?q=password+&type=

[clach04]

For now password prompt done potentially by caller (e.g. ptig) or before opening files for view/edit in ptpyvim IF a filename that has been passed in requires encryption. ed6385a

[clach04]

Opened #46 for improvements, closing as initial integration is complete.