1976597 - Unable to highlight text with NVDA

Status: RESOLVED FIXED

(Firefox :: PDF Viewer, defect, P1)

Description

[Natalie Stroud [:nstroud]]

Prerequisites:

Issue occurs in both Firefox and Nightly

STR:

1. Turn on NVDA
2. Open Firefox or Nightly
3. Go to Google Scholar
4. In the textbox, type in any topic and click the search icon button. For testing, I chose 'accessibility'
5. Once results appear, pick a PDF. They'll appear right aligned from the hyperlinks and start with '[PDF] ...'
6. Move NVDA focus onto the PDF
7. Using the down arrow key, move NVDA's focus to text within the PDF.
8. Once you've found text to start with, press Insert + F9
9. Then, press the down arrow key again to find text that you can end the selection at. Press Insert + F10
10. Using Shift + TAB, move NVDA focus to the Highlight icon button in the toolbar at the top and press ENTER
11. Once the doortag appears, press TAB to select a highlight color and press ENTER
12. PLEASE NOTE: for steps 8 and 9, you can also try using your mouse to click the Highlight icon button and pick a color. Both methods have the same result

Actual:

After selecting text with NVDA and going back to the Highlight doortag to select a color, there are no visual changes to the selected text

Screen recording (with audio)

Expected:

Once an NVDA user has selected text, once they're back in the Highlight doortag and select a color, the highlight should be applied

Comment 1

[Calixte Denizet (:calixte)]

:nstroud, this bug isn't specific to the preview you mentioned in the "Prerequisites": you should be able to reproduce in Firefox with the built-in viewer, right ?

Comment 2

[Natalie Stroud [:nstroud]]

Hi Calixte! It appears it takes place in Firefox as well with a regular PDF. I tested in Nightly too and get the same thing. I made a recording showing the example in Firefox

Comment 3

[Natalie Stroud [:nstroud]]

updated description above to reflect that issue takes place in Firefox and Nightly, removed mention of prototype

Comment 4

[Calixte Denizet (:calixte)]

We've to enable native selection with NVDA in using NVDA+shift+F10.
Unfortunately, it doesn't work (even with native selection) because we're unable to detect when the selection is ended by the user, so we've to figure out a way to do that.

Comment 5

[BMO Github Automation]

Attachment: [mozilla/pdf.js] [Editor] Highlight text on a selectionchange event which hasn't been triggered by the pointer or the keyboard (bug 1976597) (#20138)