Add support for updating media description and focus point when editing statuses (#3215)

* Add support for updating media description and focus point when editing statuses

* Don't publish description/focus point updates via the standard api when editing a published post

app/src/main/java/com/keylesspalace/tusky/components/compose/ComposeViewModel.kt

@@ -335,6 +335,8 @@ class ComposeViewModel @Inject constructor(
             }
         }
 
+        if (!editing) {
+            // Updates to media for already-published statuses need to go through the status edit api
             val updatedItem = newMediaList.find { it.localId == localId }
             if (updatedItem?.id != null) {
                 val focus = updatedItem.focus
@@ -347,6 +349,7 @@ class ComposeViewModel @Inject constructor(
                         false
                     })
             }
+        }
         return true
     }
 

app/src/main/java/com/keylesspalace/tusky/components/compose/MediaPreviewAdapter.kt

@@ -48,11 +48,12 @@ class MediaPreviewAdapter(
         val addFocusId = 2
         val editImageId = 3
         val removeId = 4
-        if (item.state != ComposeActivity.QueuedMedia.State.PUBLISHED) {
-            // Already-published items can't have their metadata edited
+
         popup.menu.add(0, addCaptionId, 0, R.string.action_set_caption)
         if (item.type == ComposeActivity.QueuedMedia.Type.IMAGE) {
             popup.menu.add(0, addFocusId, 0, R.string.action_set_focus)
+            if (item.state != ComposeActivity.QueuedMedia.State.PUBLISHED) {
+                // Already-published items can't be edited
                 popup.menu.add(0, editImageId, 0, R.string.action_edit_image)
             }
         }

app/src/main/java/com/keylesspalace/tusky/entity/Attachment.kt

@@ -83,7 +83,9 @@ data class Attachment(
     data class Focus(
         val x: Float,
         val y: Float
-    ) : Parcelable
+    ) : Parcelable {
+        fun toMastodonApiString(): String = "$x,$y"
+    }
 
     /**
      * The size of an image, used to specify the width/height.

app/src/main/java/com/keylesspalace/tusky/entity/NewStatus.kt

@@ -26,6 +26,7 @@ data class NewStatus(
     val visibility: String,
     val sensitive: Boolean,
     @SerializedName("media_ids") val mediaIds: List<String>?,
+    @SerializedName("media_attributes") val mediaAttributes: List<MediaAttribute>?,
     @SerializedName("scheduled_at") val scheduledAt: String?,
     val poll: NewPoll?,
     val language: String?,
@@ -37,3 +38,13 @@ data class NewPoll(
     @SerializedName("expires_in") val expiresIn: Int,
     val multiple: Boolean
 ) : Parcelable
+
+// It would be nice if we could reuse MediaToSend,
+// but the server requires a different format for focus
+@Parcelize
+data class MediaAttribute(
+    val id: String,
+    val description: String?,
+    val focus: String?,
+    val thumbnail: String?,
+) : Parcelable

app/src/main/java/com/keylesspalace/tusky/service/SendStatusService.kt

@@ -29,6 +29,7 @@ import com.keylesspalace.tusky.components.notifications.NotificationHelper
 import com.keylesspalace.tusky.db.AccountManager
 import com.keylesspalace.tusky.di.Injectable
 import com.keylesspalace.tusky.entity.Attachment
+import com.keylesspalace.tusky.entity.MediaAttribute
 import com.keylesspalace.tusky.entity.NewPoll
 import com.keylesspalace.tusky.entity.NewStatus
 import com.keylesspalace.tusky.entity.Status
@@ -190,6 +191,14 @@ class SendStatusService : Service(), Injectable {
                 scheduledAt = statusToSend.scheduledAt,
                 poll = statusToSend.poll,
                 language = statusToSend.language,
+                mediaAttributes = media.map { media ->
+                    MediaAttribute(
+                        id = media.id!!,
+                        description = media.description,
+                        focus = media.focus?.toMastodonApiString(),
+                        thumbnail = null,
+                    )
+                },
             )
 
             val sendResult = if (statusToSend.statusId == null) {