Wire JetpackSocial into Custom Post Settings

[crazytonyli]

Adds a new "Share to social media" section to Post Settings for custom post types when the socialSharingV2 feature flag is enabled. The section shows the site's connected social accounts with per-connection toggles, an optional custom message field, and an "Add a connection" entry point that reuses the OAuth flow from the Social screen.

On save, the post payload now includes jetpack_publicize_connections in additional fields and jetpack_publicize_message in post meta, so Jetpack Social can publish the post to the selected accounts.

Simulator.Screen.Recording.-.iPhone.Air.-.2026-05-08.at.21.47.56.mov

[dangermattic]

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⚠️	This PR is larger than 500 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

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📲 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
	Configuration	Release-Alpha
	Build Number	32189
	Version	PR #25546
	Bundle ID	org.wordpress.alpha
	Commit	61dad94
	Installation URL	3qc874r9ehrn0

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📲 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
	Configuration	Release-Alpha
	Build Number	32189
	Version	PR #25546
	Bundle ID	com.jetpack.alpha
	Commit	61dad94
	Installation URL	0kuucerrg133g

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[Copilot]

Pull request overview

Wires Jetpack Social “Share to social media” (v2) into Custom Post Type Post Settings behind the socialSharingV2 feature flag, including UI for per-connection toggles + custom message, and encoding the resulting state into REST update/create payloads.

Changes:

• Adds a v2 social sharing entry + detail flow in Post Settings, backed by a PostSocialSharingDraft binding and SiteSocialConnectionsService.
• Encodes jetpack_publicize_connections into additional_fields and jetpack_publicize_message into post meta for update/create requests.
• Extends JetpackSocial with draft/model helpers, a new detail view, and updated add-connection flow to return the created SocialConnection, plus new/updated tests.

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
WordPress/Classes/ViewRelated/Post/PostSettings/PostSettingsViewModelProtocol.swift	Adds optional v2 social sharing binding surface for host view models.
WordPress/Classes/ViewRelated/Post/PostSettings/PostSettingsView.swift	Dispatches between legacy vs v2 social sharing UI; adds Jetpack-branded section entry.
WordPress/Classes/ViewRelated/Post/PostSettings/PostSettings.swift	Persists draft state in PostSettings and encodes publicize connections/message into REST params.
WordPress/Classes/ViewRelated/Post/PostSettings/CustomPostSettingsViewModel.swift	Plumbs JetpackSocial service + add-connection coordinator; exposes v2 binding; initializes draft from fetched post.
Tests/KeystoneTests/Tests/Features/Posts/PostSettingsTests.swift	Adds coverage for publicize message clearing/preservation and connections encoding in update params.
Tests/KeystoneTests/Tests/Features/Posts/CustomPostSettingsViewModelTests.swift	New regression tests around hasChanges behavior with social v2 draft state.
Tests/KeystoneTests/Tests/Features/Posts/CustomPostEditorServiceTests.swift	Adds coverage ensuring create/update local application carries social draft into params/pending settings.
Modules/Tests/JetpackSocialTests/SiteSocialConnectionsServiceTests.swift	Removes test relying on deleted currentConnectionIDs() API.
Modules/Tests/JetpackSocialTests/PostSocialSharingDraftTests.swift	New tests for draft parsing/round-trips and publicize field/meta helpers.
Modules/Sources/JetpackSocial/Views/PostSocialSharingDetailView.swift	New SwiftUI detail screen (toggles + custom message) and summary helper.
Modules/Sources/JetpackSocial/Views/AddConnectionCoordinator.swift	Adds optional callback for newly created connection and wires it through success path.
Modules/Sources/JetpackSocial/Views/AccountConfirmationView.swift	Adjusts completion to return the created SocialConnection instead of the keyring account.
Modules/Sources/JetpackSocial/Strings/Strings.swift	Adds localized strings for the Post Settings social-sharing section.
Modules/Sources/JetpackSocial/Services/SiteSocialConnectionsService.swift	Removes currentConnectionIDs() API.
Modules/Sources/JetpackSocial/Services/PostSocialSharingDraft.swift	Introduces PostSocialSharingDraft model for message + per-connection enablement state.
Modules/Sources/JetpackSocial/Models/WpAdditionalFields+Publicize.swift	Adds parsing/encoding helpers for jetpack_publicize_connections.
Modules/Sources/JetpackSocial/Models/PostMeta+Publicize.swift	Adds parsing/encoding helpers for jetpack_publicize_message.
AGENTS.md	Adds guidance about Core Data concurrency and avoiding cross-thread managed object capture.

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