[qutebrowser] Save PDF file opened with pdfjs

[Florian Bruhin]

Hey Valentin,

On Fri, Nov 09, 2018 at 10:35:59AM +0100, Valentin Iovene wrote:
> Sometimes I however want to save the PDF. There is a Download button
> embedded in pdf.js (top right corner) but it doesn't do anything when I
> click it. Maybe this is a bug?

It's complicated - in short, it's a PDF.js bug (or feature - it silently
ignores downloads not coming from a http/https URL) which triggers
because of a workaround for a Qt bug. It should be possible to disable
that workaround with Qt 5.12, where the download button should start
working.

> My current process is to disable pdfjs, download the PDF by re-opening
> the initial PDF URL, re-enabling pdfjs. But this is cumbersome.

You can instead disable content.pdfjs and hit Ctrl-P
(:prompt-open-download --pdfjs) in the download prompt.

> Also, where are temporary PDF files located? This could be an
> alternative solution to just cp the PDF from a terminal.

In a qutebrowser-download-... directory in your OS' temporary directory. 
Don't remember where that was on macOS, but you can do :debug-console
and this:

  from qutebrowser.browser import downloads
  downloads.temp_download_manager.get_tmpdir().name

Florian

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