Make QuickFolders compatible with Thunderbird 91. (ESR 2021/22)

[RealRaven2000]

There are a number of things that don't work in the latest beta for Thunderbird 86, so far I have discovered:

• Options screen is misaligned (especially support and layout tabs) due to missing grid support
• Search popup have stopped working
• (add more later)

[RealRaven2000]

Quick fixes for the first two items listed above:

QuickFolders-wx-5.3pre54.zip

To install, download the zip file and drag into Thunderbird Add-ons manager. This version should also be compatible with Thunderbird 78, so feel free to test there as well and leave comments below:

[aprojanos71]

Works fine!
Thx!

(You are very quick!) 👍🏼

[RealRaven2000]

Works fine!
Thx!

(You are very quick!) 👍🏼

Yeah, I already had found that grid bug earlier and only just discovered the search not working while messing around with quickFilters. That's why I decided to create a catch-all bug for Thunderbird 86 like in quickFilters, so I can hit the ground running later this year when the ESR rolls around once more. The changes aren't quite as fundamental as having to drop the legacy flag altogether (as Thunderbird 78 required) but my guess is they will be more numerous this year because Thunderbird will force developers to publish new Add-ons as "Mail extensions" - with native APIs only.

Which means they can do more internal changes / refactoring and care about internal dependencies of our code less - if we still use the legacy methods of "hacking the internals" - like all my Add-ons we have to once again blame ourselves if we can't keep up. At the moment I am solving the problems with "wrapper code" - so I am writing functions that "translate" between both behaviors, but I had dropped a lot of that in Tb78 because I was forced to fork my code into a new branch - which effectively doubles my workload whenever I try to back-port bug fixes / features for Thunderbird 68. Once I release for 88 I will probably freeze all work on Thunderbird 68 because it will only have diminishing returns at that stage.

[RealRaven2000]

First two items fixed in 5.3 - released 22/02/2021. Please add more defects / regressions for Tb86 / later below.

[RealRaven2000]

More defects found in Tb 88:

• subfolders are not shown in subfolder dropdowns that are displayed when right-clicking a Tab
• folder navigation next / previous "sibling" folder don't work.

These are caused by folder.subFolders having been changed from an nsIMutableArray to an Array. I added some wrapper code so that it will work both in Tb78 and in the newer versions as well. quickFix tested in Thunderbird 87.0b1

QuickFolders-wx-5.4pre16.zip

[RealRaven2000]

Next problem in Tb87

• opening documentation / content URLS / websites in a tab fails. THis is due to a change in contentTabs, which now requires a uri attribute to be passed instead of a contentPage attribute.

The patched version simply passes both so it remains backwards compatible with Tb78, too:
QuickFolders-wx-5.4pre18.zip

[RealRaven2000]

Next problem in Tb87

• advanced tab-specific properties was malformed because of lacking grid support:
  
  these elements should be aligned vertically.

Fixed version:
QuickFolders-wx-5.4pre23.zip

[RealRaven2000]

I published Release 5.4 on ATN today

• Fixed: Support Pages did not open anymore as content Tabs have a different parameter set.
• Fixed: layout of advanced tab properties broken due to deprecated grid element.
• Fixed: Copy / Move folders uses new MailServices.copy object

[aprojanos71]

Super!
But what is ATN?