[Reader] Show "Create Post" FAB in Reader

[RenanLukas]

Fixes #20908

• Implement reader_floating_button remote feature flag
• Show the "create" FAB in Reader based on the state of the reader_floating_button feature flag
• Add analytics (see [Reader] Show "Create Post" FAB in Reader #20908 for details)
• Move some FAB/Sheet related code to MainCreateSheetHelper for better organization
• Some minor refactor

---

To Test:

Showing FAB on Reader page

1. Open Jetpack
2. Go to Debug Settings
3. Disable the reader_floating_buitton remote flag
4. Go to Reader
5. Verify the FAB does not appear on Reader
6. Go to Debug Settings
7. Enable the reader_floating_button remote flag
8. Go to Reader
9. Verify the FAB appears on Reader

Analytics

1. Open Jetpack
2. Go to Debug Settings
3. Enable the reader_floating_button remote flag
4. Go to Reader
5. Verify tracked reader_create_fab_shown
6. Tap the FAB
7. Verify tracked reader_create_sheet_shown
8. Tap the "?" button in the Prompts item (if a prompt is available for the tested site)
9. Verify tracked reader_create_sheet_prompt_help_tapped
10. Go back
11. Tap Answer prompt (if a prompt is available for the tested site)
12. Verify tracked reader_create_sheet_answer_prompt_tapped
13. Go back to Reader
14. Tap the FAB
15. Tap Blog post
16. Verify tracked reader_create_sheet_action_tapped, Properties: {"action":"create_new_post"}

Sanity

Please also test the FAB works normally on "My Site" page as expected, and the FAB is not shown in other pages, nor on the Reader when the reader_floating_button is disabled.

---

Regression Notes

1. Potential unintended areas of impact

   • FAB behavior in other pages

2. What I did to test those areas of impact (or what existing automated tests I relied on)

   • Manual Tests
   • Unit tests in the Activity ViewModel

3. What automated tests I added (or what prevented me from doing so)

   • Updated Activity ViewModel tests
   • Added unit tests to the MainCreateSheetHelper

---

PR Submission Checklist:

• I have completed the Regression Notes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

---

Testing Checklist (strike-out the not-applying and unnecessary ones):

• WordPress.com sites and self-hosted Jetpack sites.
• Portrait and landscape orientations.
• Light and dark modes.
• Fonts: Larger, smaller and bold text.
• High contrast.
• Talkback.
• Languages with large words or with letters/accents not frequently used in English.
• Right-to-left languages. (Even if translation isn’t complete, formatting should still respect the right-to-left layout)
• Large and small screen sizes. (Tablet and smaller phones)
• Multi-tasking: Split screen and Pop-up view. (Android 10 or higher)

[dangermattic]

	1 Warning
⚠️	PR is not assigned to a milestone.

Generated by 🚫 Danger

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20925-096ad6e
	Commit	096ad6e
	Direct Download	jetpack-prototype-build-pr20925-096ad6e.apk

Note: Google Login is not supported on these builds.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr20925-096ad6e
	Commit	096ad6e
	Direct Download	wordpress-prototype-build-pr20925-096ad6e.apk

Note: Google Login is not supported on these builds.

[RenanLukas]

Code already reviewed on #20910

[sonarcloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

Attention: Patch coverage is 92.50000% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 41.06%. Comparing base (4f6014a) to head (096ad6e).

Files	Patch %	Lines
.../android/viewmodel/main/WPMainActivityViewModel.kt	86.11%	1 Missing and 4 partials ⚠️
...ava/org/wordpress/android/util/SiteUtilsWrapper.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           release/25.0   #20925      +/-   ##
================================================
+ Coverage         41.02%   41.06%   +0.03%     
================================================
  Files              1512     1515       +3     
  Lines             69383    69426      +43     
  Branches          11440    11451      +11     
================================================
+ Hits              28462    28507      +45     
+ Misses            38342    38338       -4     
- Partials           2579     2581       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[thomashorta]

Approving it since Renan already reviewed this code (which was originally made by me on a different PR) but since he opened this PR he can't approve it again.

[sentry-io]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ ApplicationNotResponding: ANR org.wordpress.android.ui.bloggingprompts.Bloggi... View Issue

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