Web Version of Qt Console

[afshin]

In addition to the notebook interface, we need to implement a web-based version of the console interface. Here are some of the tasks that will get us there:

• Create a ConsolePanel as a container that holds a ConsoleWidget, similar to the way the notebook works.
• Create a ConsoleModel that is similar to a NotebookModel but does not have a notion of arbitrary cell insertion.
• The first child of the ConsoleWidget needs to be a RawCellWidget to hold a banner and the second needs to be a CodeCellWidget to hold the prompt.
• The ConsoleWidget needs a set of keyboard bindings to emulate the Qt Console application.
• The execution of the code cell needs to be separated from the notebook because it is common functionality.
• After every prompt execution, a new CodeCell needs to be generated to become the new prompt.
• The UI needs to be styled to look like the Qt Console application.
• The history functionality of the Qt Console needs to be implemented (i.e. navigating through past commands via arrow keys).
• The contextual tooltip feature of the Qt Console needs to be implemented.
• The pager functionality of leaving the prompt and residing within a different interactive context (i.e., entering the interactive help) needs to be implemented.
• The completion functionality (i.e., tab completion) of the Qt Console needs to be implemented. This should be done in a way that allows the notebook, or other widgets potentially, to use it as well.

cc @blink1073 @jasongrout

[ellisonbg]

Yep, and a lot of this refactoring will also help us in hooking up kernels
to standalone text editors.

On Mon, Apr 11, 2016 at 1:17 PM, A. Darian notifications@github.com wrote:

In addition to the notebook interface, we need to implement a web-based
version of the console interface. Here are some of the tasks that will get
us there:

• Create a ConsolePanel as a container that holds a ConsoleWidget,
  similar to the way the notebook works.
• The first child of the ConsoleWidget needs to be a CodeCell
• The ConsoleWidget needs a set of keyboard bindings to emulate the Qt
  Console application.
• The execution of the code cell needs to be separated from the
  notebook because it is common functionality.

—
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub
#170

Brian E. Granger
Associate Professor of Physics and Data Science
Cal Poly State University, San Luis Obispo
@ellisonbg on Twitter and GitHub
bgranger@calpoly.edu and ellisonbg@gmail.com

[blink1073]

@afshin,

Up/down at the edge of a codemirror: https://github.com/jupyter/notebook/blob/master/notebook/static/notebook/js/cell.js#L234

[blink1073]

It looks like the current notebook is still using the deprecated payload shell response for the pager:

https://github.com/jupyter/notebook/blob/master/notebook/static/notebook/js/codecell.js#L347

http://jupyter-client.readthedocs.org/en/latest/messaging.html#execution-results

cc @minrk

[blink1073]

@afshin,

Completion: https://github.com/jupyter/notebook/blob/41d6da235cbf3bcf6d7f818e11a066e0fd12ff8b/notebook/static/notebook/js/completer.js#L173
Tooltip for inspection: https://github.com/jupyter/notebook/blob/41d6da235cbf3bcf6d7f818e11a066e0fd12ff8b/notebook/static/notebook/js/tooltip.js#L189

[blink1073]

@minrk, ah, I see now "Payloads are considered deprecated, though their replacement is not yet implemented."

This statement is confusing, I would say it isn't deprecated until there is actually a preferred replacement.

[blink1073]

@afshin, it looks like all of these will be relevant to you: http://jupyter-client.readthedocs.org/en/latest/messaging.html#payloads-deprecated

[afshin]

@blink1073 you're a monster. Thank you!

[minrk]

@blink1073 payloads are something that we don't like, and know that we will remove/replace when we get the chance. Since we know that, we want to avoid things like proposing new payloads, etc., but they still exist because we haven't come up with a replacement for the few things they are used for. If you have a better way to communicate "avoid using these if you can, but that's not always possible," A PR to the doc would be welcome.

[afshin]

@minrk in order to cover functionality that the Qt Console currently offers, e.g., using the interactive help system, we'll need to use payloads. Do you have any input on how we should approach this?

cc: @blink1073 @sccolbert