Ctrl+S: save JSON instead of HTML content

[vogelsgesang]

It would be great if I could save a JSON file by hitting the Ctrl+S shortcut.
Right now, this saves the rendered HTML. But I would like to save the original JSON file contents

[bhollis]

I agree, it'd be really nice, but I don't know how to make Firefox do that. A PR that added this feature would be great, though!

[vogelsgesang]

Unfortunately, I don't know how to write FF extensions. In a normal web page I would use the following snippet:

   window.addEventListener("keydown", function(evt) {
      if(evt.key == "s" && evt.ctrlKey) {
        window.location = "data:application/octet-stream;base64,"
          + btoa("Content of the downloaded file");
        evt.preventDefault();
      }
    });

While this does not bring up the native save dialog of FF, it allows to save the file contents to disk.
But I have no idea if this code would work in Firefox extensions.

[nqv]

As a workaround, I just "View Page Source" and copy the original JSON content from there :)

[vogelsgesang]

Thanks for the hint. Makes life much easier :)

[TrangPham]

I haven't had experience with this either, but I found some useful resources if someone wants to tackle this issue:

"The file picker component, nsIFilePicker, can be used to open standard Open / Save dialogs"
https://developer.mozilla.org/en-US/Add-ons/Code_snippets/File_I_O#User_input_via_nsIFilePicker

"Use of OS.File is preferred. Only use these legacy interfaces if OS.File is not available to you."
https://developer.mozilla.org/en-US/docs/Mozilla/JavaScript_code_modules/OSFile.jsm/OS.File_for_the_main_thread#Example.3A_Write_a_string_to_a_file

[bhollis]

Any solution would have to work for the "File > Save" menu item as well as the Cmd-S shortcut.

[Alexsey]

How about adding shortcut to toggle addon? With page auto update, so when add-on off - we see raw json, and when on - nice html view.

Also, as option, icon, like one from ff customize menu, could be added to toggle view mode

[bhollis]

That would be a different feature request than this, but it's also not the sort of thing I'd add to the extension.

[mdibaiee]

As far as I know it's not possible to alter "File -> Save"s functionality, my idea is to add a button/link somewhere in the page, or a button in the toolbar / urlbar which would feel more native. A contextmenu item would work, too.

Alternatively, we could add a custom shortcut for that something like Cmd + Shift + S, but I don't like this idea.

If you agree, I will work on it.

[TrangPham]

@mdibaiee I think using cmd + shift + s could work really well as a solution

[bhollis]

This appears to have been fixed at the platform level in Firefox. Save now saves the original document.