Add Compose-based RS post list for self-hosted sites

[nbradbury]

Description

Adds a new Compose-based post list screen powered by wordpress-rs for self-hosted sites with
application passwords enabled, gated behind the "New Post List" experimental feature flag.

This will eventually replace the existing FluxC-based post list with one that uses WpSelfHostedService from
the wordpress-rs library for all data operations.

Limitations

There is a lot of missing functionality which will be added over time:

• Search
• Post context menus
• Refreshing after post uploaded/changed
• Tapping a trashed post should ask whether to move it to drafts before opening it

Also, note that opening a post in the editor only works if the post already exists in FluxC (since the editor loads the local post from FluxC). For this reason I recommend refreshing the "old" post list before enabling the feature flag for the new post list to ensure posts are loaded.

New files

• PostRsListActivity — Compose activity with FluxC bridge for opening posts in the editor
• PostRsListViewModel — manages observable collections per tab via wordpress-rs
• PostRsListTab — enum defining Published, Drafts, Scheduled, Trashed tabs
• PostRsListUiState — UI state models and PostItemState-to-UI mapping
• WpSelfHostedServiceProvider — singleton that creates/caches WpSelfHostedService per site
• PostRsListScreen — main Scaffold with tabs, pager, and FAB
• PostRsTabListScreen — per-tab content with pull-to-refresh and pagination
• PostRsListItem — post row with content, shimmer placeholder, and error states

Key behaviors

• Feature gate: experimental flag enabled AND !site.isWPCom AND site.hasApplicationPassword()
• All wordpress-rs FFI calls run on Dispatchers.IO
• Tapping a post opens the editor (assuming the post exists in the FluxC store)
• FAB and empty-state button for creating new posts
• Pull-to-refresh, infinite scroll pagination, per-tab empty messages
• Relative date formatting, HTML-stripped excerpts

Testing instructions

Enable RS Post List:

1. Log in to a self-hosted WordPress site with application passwords
2. Go to Me > App Settings > Experimental Features
3. Enable "RS Post List"

• The toggle saves and persists

Verify post list:

1. Navigate to My Site > Posts

• The new Compose-based post list opens (not the old one)
• Published, Drafts, Scheduled, and Trashed tabs are visible

2. Swipe between tabs

• Each tab loads its posts correctly
• Empty tabs show the appropriate empty message and "Create a post" button

3. Pull down to refresh

• Pull-to-refresh indicator appears and posts reload

4. Scroll to the bottom of a tab with many posts

• Loading indicator appears and more posts load

5. Tap a post

• The post editor opens with the correct post (assuming it exists in FluxC already)

6. Tap the FAB or "Create a post" button

• A new post editor opens

7. Tap the back arrow

• Returns to My Site

rsposts.mp4

[dangermattic]

	4 Warnings
⚠️	This PR is larger than 300 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.
⚠️	Class PostRsListViewModel is missing tests, but unit-tests-exemption label was set to ignore this.
⚠️	Class WpSelfHostedServiceProvider is missing tests, but unit-tests-exemption label was set to ignore this.
⚠️	PR is not assigned to a milestone.

Generated by 🚫 Danger

[wpmobilebot]

Project manifest changes for WordPress

The following changes in the WordPress's merged AndroidManifest.xml file were detected (build variant: jetpackVanillaRelease):

--- ./build/reports/diff_manifest/WordPress/jetpackVanillaRelease/base_manifest.txt	2026-02-14 16:24:54.689960206 +0000
+++ ./build/reports/diff_manifest/WordPress/jetpackVanillaRelease/head_manifest.txt	2026-02-14 16:24:57.379967288 +0000
@@ -599,6 +599,10 @@
             android:launchMode="singleTop"
             android:theme="@style/WordPress.NoActionBar" />
         <activity
+            android:name="org.wordpress.android.ui.postsrs.PostRsListActivity"
+            android:label=""
+            android:theme="@style/WordPress.NoActionBar" />
+        <activity
             android:name="org.wordpress.android.ui.pages.PagesActivity"
             android:label="@string/my_site_btn_site_pages"
             android:launchMode="singleTop"

Go to https://buildkite.com/automattic/wordpress-android/builds/25012/canvas?sid=019c5cf2-0588-4c19-99bb-8eec3717cf21, click on the Artifacts tab and audit the files.

[wpmobilebot]

Project manifest changes for WordPress

The following changes in the WordPress's merged AndroidManifest.xml file were detected (build variant: wordpressVanillaRelease):

--- ./build/reports/diff_manifest/WordPress/wordpressVanillaRelease/base_manifest.txt	2026-02-14 16:23:42.083478583 +0000
+++ ./build/reports/diff_manifest/WordPress/wordpressVanillaRelease/head_manifest.txt	2026-02-14 16:23:44.193456187 +0000
@@ -405,6 +405,10 @@
             android:launchMode="singleTop"
             android:theme="@style/WordPress.NoActionBar" />
         <activity
+            android:name="org.wordpress.android.ui.postsrs.PostRsListActivity"
+            android:label=""
+            android:theme="@style/WordPress.NoActionBar" />
+        <activity
             android:name="org.wordpress.android.ui.pages.PagesActivity"
             android:label="@string/my_site_btn_site_pages"
             android:launchMode="singleTop"

Go to https://buildkite.com/automattic/wordpress-android/builds/25012/canvas?sid=019c5cf2-0587-420a-96b6-15365dac2349, click on the Artifacts tab and audit the files.

[wpmobilebot]

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

	App Name	Jetpack Android
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr22596-34e098d
	Build Number	1484
	Application ID	com.jetpack.android.prealpha
	Commit	34e098d
	Installation URL	43qu201njk4n0

Note: Google Login is not supported on these builds.

[wpmobilebot]

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

	App Name	WordPress Android
	Flavor	Jalapeno
	Build Type	Debug
	Version	pr22596-34e098d
	Build Number	1484
	Application ID	org.wordpress.android.prealpha
	Commit	34e098d
	Installation URL	3qj75en3qqjd8

Note: Google Login is not supported on these builds.

[nbradbury]

@claude

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud