Don't activate Say All profile if there is nothing to read

[lukaszgo1]

Link to issue number:

Fixes #10899
Fixes #9947 completely

Summary of the issue:

In Python 3 versions of NVDA when user attempted to perform Say All in non text and had separate profile for Say All the profile was activated without possibility of disabling unless NVDA is restarted. Also Say All in non text raised an error. (#10723 attempted to fix this but the fix was not complete).

Description of how this pull request fixes the issue:

The say all trigger is only entered if there is something to read. Normally the destructor is responsible for disabling this trigger when reading ends but due to #9947 this was not happening.

Testing performed:

1. On desktop pressed NVDA + Down arrow ensured that there is no error sound.
2. With profile for Say all ensured that NVDA does not switch into it when there is not text to read and that it switches to it when performing say all in text.

Known issues with pull request:

• Accepting bug-fix / maintenance PR's only while addressing backlog #11006 - This fixes a regression from Python 3 migration.

Change log entry:

Section: Bug fixes

NVDA no longer activates Say All profile if there is nothing to read.

[Adriani90]

The lucky effect of this is that it also fixed #4789. NVDA performs now say all in lists as well. I will close that issue as well. Thanks for fixing this.

[Adriani90]

I tested this in CCleaner in a list ans also in Windows Explorer and NVDA reads all items. However, it seems the say all profile gets triggered on text and other elements such as buttons, but not in lists.

The expected behavior would be that the say all profile gets triggered also in lists when performing say all, like it does when reading text.

[Adriani90]

Oops, sorry for the noise, it turned out I had the addon column review enabled, that's why say all in lists and other elements worked for me. Sorry, the issue referenced above is not fixed in the NVDA core.