Check if user have enough power level to change settings.

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/powerlevels/PowerLevelsHelper.kt

@@ -17,6 +17,7 @@
 
 package im.vector.matrix.android.api.session.room.powerlevels
 
+import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.room.model.PowerLevelsContent
 
 /**
@@ -123,4 +124,59 @@ class PowerLevelsHelper(private val powerLevelsContent: PowerLevelsContent) {
             else      -> Role.Moderator.value
         }
     }
+
+    /**
+     * Check if user have the necessary power level to change room name
+     * @param userId the id of the user to check for.
+     * @return true if able to change room name
+     */
+    fun isUserAbleToChangeRoomName(userId: String): Boolean {
+        val powerLevel = getUserPowerLevelValue(userId)
+        val minPowerLevel = powerLevelsContent.events[EventType.STATE_ROOM_NAME] ?: powerLevelsContent.stateDefault
+        return powerLevel >= minPowerLevel
+    }
+
+    /**
+     * Check if user have the necessary power level to change room topic
+     * @param userId the id of the user to check for.
+     * @return true if able to change room topic
+     */
+    fun isUserAbleToChangeRoomTopic(userId: String): Boolean {
+        val powerLevel = getUserPowerLevelValue(userId)
+        val minPowerLevel = powerLevelsContent.events[EventType.STATE_ROOM_TOPIC] ?: powerLevelsContent.stateDefault
+        return powerLevel >= minPowerLevel
+    }
+
+    /**
+     * Check if user have the necessary power level to change room canonical alias
+     * @param userId the id of the user to check for.
+     * @return true if able to change room canonical alias
+     */
+    fun isUserAbleToChangeRoomCanonicalAlias(userId: String): Boolean {
+        val powerLevel = getUserPowerLevelValue(userId)
+        val minPowerLevel = powerLevelsContent.events[EventType.STATE_ROOM_CANONICAL_ALIAS] ?: powerLevelsContent.stateDefault
+        return powerLevel >= minPowerLevel
+    }
+
+    /**
+     * Check if user have the necessary power level to change room history readability
+     * @param userId the id of the user to check for.
+     * @return true if able to change room history readability
+     */
+    fun isUserAbleToChangeRoomHistoryReadability(userId: String): Boolean {
+        val powerLevel = getUserPowerLevelValue(userId)
+        val minPowerLevel = powerLevelsContent.events[EventType.STATE_ROOM_HISTORY_VISIBILITY] ?: powerLevelsContent.stateDefault
+        return powerLevel >= minPowerLevel
+    }
+
+    /**
+     * Check if user have the necessary power level to change room avatar
+     * @param userId the id of the user to check for.
+     * @return true if able to change room avatar
+     */
+    fun isUserAbleToChangeRoomAvatar(userId: String): Boolean {
+        val powerLevel = getUserPowerLevelValue(userId)
+        val minPowerLevel = powerLevelsContent.events[EventType.STATE_ROOM_AVATAR] ?: powerLevelsContent.stateDefault
+        return powerLevel >= minPowerLevel
+    }
 }

vector/src/main/java/im/vector/riotx/core/epoxy/profiles/ProfileActionItem.kt

@@ -71,7 +71,7 @@ abstract class ProfileActionItem : VectorEpoxyModel<ProfileActionItem.Holder>()
     override fun bind(holder: Holder) {
         super.bind(holder)
         holder.view.setOnClickListener(listener)
-        if (listener == null) {
+        if (listener == null || !editable) {
             holder.view.isClickable = false
         }
         holder.title.text = title

vector/src/main/java/im/vector/riotx/features/roomprofile/settings/RoomSettingsController.kt

@@ -67,7 +67,7 @@ class RoomSettingsController @Inject constructor(
 
         formEditTextItem {
             id("name")
-            /*enabled(enableFormElement)*/
+            enabled(data.actionPermissions.canChangeName)
             value(data.newName ?: roomSummary.displayName)
             hint(stringProvider.getString(R.string.room_settings_name_hint))
 
@@ -78,7 +78,7 @@ class RoomSettingsController @Inject constructor(
 
         formEditTextItem {
             id("topic")
-            /*enabled(enableFormElement)*/
+            enabled(data.actionPermissions.canChangeTopic)
             value(data.newTopic ?: roomSummary.topic)
             hint(stringProvider.getString(R.string.room_settings_topic_hint))
 
@@ -89,7 +89,7 @@ class RoomSettingsController @Inject constructor(
 
         formEditTextItem {
             id("alias")
-            /*enabled(enableFormElement)*/
+            enabled(data.actionPermissions.canChangeCanonicalAlias)
             value(data.newAlias ?: roomSummary.canonicalAlias)
             hint(stringProvider.getString(R.string.room_settings_addresses_add_new_address))
 
@@ -104,7 +104,7 @@ class RoomSettingsController @Inject constructor(
                 subtitle = newHistoryVisibility ?: historyVisibility,
                 dividerColor = dividerColor,
                 divider = false,
-                editable = true,
+                editable = data.actionPermissions.canChangeHistoryReadability,
                 action = { callback?.onHistoryVisibilityClicked() }
         )
 
@@ -114,7 +114,7 @@ class RoomSettingsController @Inject constructor(
                 subtitle = "",
                 dividerColor = dividerColor,
                 divider = true,
-                editable = true,
+                editable = data.actionPermissions.canChangeAvatar,
                 accessoryMatrixItem = roomSummary.toMatrixItem(),
                 avatarRenderer = avatarRenderer,
                 action = { callback?.onPhotoClicked() }

vector/src/main/java/im/vector/riotx/features/roomprofile/settings/RoomSettingsViewModel.kt

@@ -24,9 +24,11 @@ import com.squareup.inject.assisted.AssistedInject
 import im.vector.matrix.android.api.MatrixCallback
 import im.vector.matrix.android.api.session.Session
 import im.vector.matrix.android.api.session.events.model.EventType
+import im.vector.matrix.android.api.session.room.powerlevels.PowerLevelsHelper
 import im.vector.matrix.rx.rx
 import im.vector.matrix.rx.unwrap
 import im.vector.riotx.core.platform.VectorViewModel
+import im.vector.riotx.features.powerlevel.PowerLevelsObservableFactory
 import io.reactivex.Completable
 import io.reactivex.Observable
 import java.util.Locale
@@ -68,6 +70,20 @@ class RoomSettingsViewModel @AssistedInject constructor(@Assisted initialState:
                             newTopic = roomSummary?.topic
                     )
                 }
+
+        val powerLevelsContentLive = PowerLevelsObservableFactory(room).createObservable()
+
+        powerLevelsContentLive.subscribe {
+            val powerLevelsHelper = PowerLevelsHelper(it)
+            val permissions = RoomSettingsViewState.ActionPermissions(
+                    canChangeName = powerLevelsHelper.isUserAbleToChangeRoomName(session.myUserId),
+                    canChangeTopic = powerLevelsHelper.isUserAbleToChangeRoomTopic(session.myUserId),
+                    canChangeCanonicalAlias = powerLevelsHelper.isUserAbleToChangeRoomCanonicalAlias(session.myUserId),
+                    canChangeAvatar = powerLevelsHelper.isUserAbleToChangeRoomAvatar(session.myUserId),
+                    canChangeHistoryReadability = powerLevelsHelper.isUserAbleToChangeRoomHistoryReadability(session.myUserId)
+            )
+            setState { copy(actionPermissions = permissions) }
+        }.disposeOnClear()
     }
 
     override fun handle(action: RoomSettingsAction) {

vector/src/main/java/im/vector/riotx/features/roomprofile/settings/RoomSettingsViewState.kt

@@ -35,8 +35,17 @@ data class RoomSettingsViewState(
         val newAvatar: MultiPickerImageType? = null,
         val newHistoryVisibility: RoomHistoryVisibility? = null,
         val newAlias: String? = null,
-        val showSaveAction: Boolean = false
+        val showSaveAction: Boolean = false,
+        val actionPermissions: ActionPermissions = ActionPermissions()
 ) : MvRxState {
 
     constructor(args: RoomProfileArgs) : this(roomId = args.roomId)
+
+    data class ActionPermissions(
+            val canChangeName: Boolean = false,
+            val canChangeTopic: Boolean = false,
+            val canChangeCanonicalAlias: Boolean = false,
+            val canChangeAvatar: Boolean = false,
+            val canChangeHistoryReadability: Boolean = false
+    )
 }