Merge pull request #2282 from vector-im/feature/bma/room_settings

Feature/bma/room settings

CHANGES.md

@@ -11,6 +11,7 @@ Improvements 🙌:
  - Add option to send with enter (#1195)
  - Use Hardware keyboard enter to send message (use shift-enter for new line) (#1881, #1440)
  - Edit and remove icons are now visible on image attachment preview screen (#2294)
+ - Room profile: BigImageViewerActivity now only display the image. Use the room setting to change or delete the room Avatar
 
 Bugfix 🐛:
  - Messages encrypted with no way to decrypt after SDK update from 0.18 to 1.0.0 (#2252)

matrix-sdk-android-rx/src/main/java/org/matrix/android/sdk/rx/RxRoom.kt

@@ -142,6 +142,10 @@ class RxRoom(private val room: Room) {
     fun updateAvatar(avatarUri: Uri, fileName: String): Completable = completableBuilder<Unit> {
         room.updateAvatar(avatarUri, fileName, it)
     }
+
+    fun deleteAvatar(): Completable = completableBuilder<Unit> {
+        room.deleteAvatar(it)
+    }
 }
 
 fun Room.rx(): RxRoom {

matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/state/StateService.kt

@@ -58,6 +58,11 @@ interface StateService {
      */
     fun updateAvatar(avatarUri: Uri, fileName: String, callback: MatrixCallback<Unit>): Cancelable
 
+    /**
+     * Delete the avatar of the room
+     */
+    fun deleteAvatar(callback: MatrixCallback<Unit>): Cancelable
+
     fun sendStateEvent(eventType: String, stateKey: String?, body: JsonDict, callback: MatrixCallback<Unit>): Cancelable
 
     fun getStateEvent(eventType: String, stateKey: QueryStringValue = QueryStringValue.NoCondition): Event?

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/state/DefaultStateService.kt

@@ -140,4 +140,15 @@ internal class DefaultStateService @AssistedInject constructor(@Assisted private
             )
         }
     }
+
+    override fun deleteAvatar(callback: MatrixCallback<Unit>): Cancelable {
+        return taskExecutor.executorScope.launchToCallback(coroutineDispatchers.main, callback) {
+            sendStateEvent(
+                    eventType = EventType.STATE_ROOM_AVATAR,
+                    body = emptyMap(),
+                    callback = callback,
+                    stateKey = null
+            )
+        }
+    }
 }

vector/src/main/java/im/vector/app/features/form/FormEditableAvatarItem.kt

@@ -29,12 +29,16 @@ import im.vector.app.core.epoxy.VectorEpoxyHolder
 import im.vector.app.core.epoxy.onClick
 import im.vector.app.core.glide.GlideApp
 import im.vector.app.features.home.AvatarRenderer
+import org.matrix.android.sdk.api.util.MatrixItem
 
 @EpoxyModelClass(layout = R.layout.item_editable_avatar)
 abstract class FormEditableAvatarItem : EpoxyModelWithHolder<FormEditableAvatarItem.Holder>() {
 
     @EpoxyAttribute
-    lateinit var avatarRenderer: AvatarRenderer
+    var avatarRenderer: AvatarRenderer? = null
+
+    @EpoxyAttribute
+    var matrixItem: MatrixItem? = null
 
     @EpoxyAttribute
     var enabled: Boolean = true
@@ -51,11 +55,15 @@ abstract class FormEditableAvatarItem : EpoxyModelWithHolder<FormEditableAvatarI
     override fun bind(holder: Holder) {
         super.bind(holder)
         holder.imageContainer.onClick(clickListener?.takeIf { enabled })
-        GlideApp.with(holder.image)
-                .load(imageUri)
-                .apply(RequestOptions.circleCropTransform())
-                .into(holder.image)
-        holder.delete.isVisible = imageUri != null
+        if (matrixItem != null) {
+            avatarRenderer?.render(matrixItem!!, holder.image)
+        } else {
+            GlideApp.with(holder.image)
+                    .load(imageUri)
+                    .apply(RequestOptions.circleCropTransform())
+                    .into(holder.image)
+        }
+        holder.delete.isVisible = enabled && (imageUri != null || matrixItem?.avatarUrl?.isNotEmpty() == true)
         holder.delete.onClick(deleteListener?.takeIf { enabled })
     }
 

vector/src/main/java/im/vector/app/features/media/BigImageViewerActivity.kt

@@ -16,41 +16,25 @@
 
 package im.vector.app.features.media
 
-import android.app.Activity
 import android.content.Context
 import android.content.Intent
-import android.net.Uri
 import android.os.Bundle
-import android.view.Menu
-import android.view.MenuItem
-import android.widget.Toast
-import androidx.appcompat.app.AlertDialog
 import androidx.core.net.toUri
-import com.yalantis.ucrop.UCrop
 import im.vector.app.R
 import im.vector.app.core.di.ActiveSessionHolder
 import im.vector.app.core.di.ScreenComponent
-import im.vector.app.core.extensions.registerStartForActivityResult
 import im.vector.app.core.platform.VectorBaseActivity
 import im.vector.app.core.resources.ColorProvider
-import im.vector.app.core.utils.PERMISSIONS_FOR_TAKING_PHOTO
-import im.vector.app.core.utils.PERMISSION_REQUEST_CODE_LAUNCH_CAMERA
-import im.vector.app.core.utils.allGranted
-import im.vector.app.core.utils.checkPermissions
-import im.vector.lib.multipicker.MultiPicker
-import im.vector.lib.multipicker.entity.MultiPickerImageType
 import kotlinx.android.synthetic.main.activity_big_image_viewer.*
-import java.io.File
 import javax.inject.Inject
 
+/**
+ * Simple Activity to display an avatar in fullscreen
+ */
 class BigImageViewerActivity : VectorBaseActivity() {
     @Inject lateinit var sessionHolder: ActiveSessionHolder
     @Inject lateinit var colorProvider: ColorProvider
 
-    private var uri: Uri? = null
-
-    override fun getMenuRes() = R.menu.vector_big_avatar_viewer
-
     override fun injectWith(injector: ScreenComponent) {
         injector.inject(this)
     }
@@ -66,7 +50,7 @@ class BigImageViewerActivity : VectorBaseActivity() {
             setDisplayHomeAsUpEnabled(true)
         }
 
-        uri = sessionHolder.getSafeActiveSession()
+        val uri = sessionHolder.getSafeActiveSession()
                 ?.contentUrlResolver()
                 ?.resolveFullSize(intent.getStringExtra(EXTRA_IMAGE_URL))
                 ?.toUri()
@@ -78,117 +62,14 @@ class BigImageViewerActivity : VectorBaseActivity() {
         }
     }
 
-    override fun onPrepareOptionsMenu(menu: Menu): Boolean {
-        menu.findItem(R.id.bigAvatarEditAction).isVisible = shouldShowEditAction()
-        return super.onPrepareOptionsMenu(menu)
-    }
-
-    override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        if (item.itemId == R.id.bigAvatarEditAction) {
-            showAvatarSelector()
-            return true
-        }
-        return super.onOptionsItemSelected(item)
-    }
-
-    private fun shouldShowEditAction(): Boolean {
-        return uri != null && intent.getBooleanExtra(EXTRA_CAN_EDIT_IMAGE, false)
-    }
-
-    private fun showAvatarSelector() {
-        AlertDialog.Builder(this)
-                .setItems(arrayOf(
-                        getString(R.string.attachment_type_camera),
-                        getString(R.string.attachment_type_gallery)
-                )) { dialog, which ->
-                    dialog.cancel()
-                    onAvatarTypeSelected(isCamera = (which == 0))
-                }
-                .show()
-    }
-
-    private var avatarCameraUri: Uri? = null
-    private fun onAvatarTypeSelected(isCamera: Boolean) {
-        if (isCamera) {
-            if (checkPermissions(PERMISSIONS_FOR_TAKING_PHOTO, this, PERMISSION_REQUEST_CODE_LAUNCH_CAMERA)) {
-                avatarCameraUri = MultiPicker.get(MultiPicker.CAMERA).startWithExpectingFile(this, takePhotoActivityResultLauncher)
-            }
-        } else {
-            MultiPicker.get(MultiPicker.IMAGE).single().startWith(pickImageActivityResultLauncher)
-        }
-    }
-
-    private fun onRoomAvatarSelected(image: MultiPickerImageType) {
-        val destinationFile = File(cacheDir, "${image.displayName}_edited_image_${System.currentTimeMillis()}")
-        val uri = image.contentUri
-        createUCropWithDefaultSettings(this, uri, destinationFile.toUri(), image.displayName)
-                .withAspectRatio(1f, 1f)
-                .start(this)
-    }
-
-    private val takePhotoActivityResultLauncher = registerStartForActivityResult { activityResult ->
-        if (activityResult.resultCode == Activity.RESULT_OK) {
-            avatarCameraUri?.let { uri ->
-                MultiPicker.get(MultiPicker.CAMERA)
-                        .getTakenPhoto(this, uri)
-                        ?.let {
-                            onRoomAvatarSelected(it)
-                        }
-            }
-        }
-    }
-
-    private val pickImageActivityResultLauncher = registerStartForActivityResult { activityResult ->
-        if (activityResult.resultCode == Activity.RESULT_OK) {
-            MultiPicker
-                    .get(MultiPicker.IMAGE)
-                    .getSelectedFiles(this, activityResult.data)
-                    .firstOrNull()?.let {
-                        onRoomAvatarSelected(it)
-                    }
-        }
-    }
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        // TODO handle this one (Ucrop lib)
-        @Suppress("DEPRECATION")
-        super.onActivityResult(requestCode, resultCode, data)
-
-        if (resultCode == Activity.RESULT_OK) {
-            when (requestCode) {
-                UCrop.REQUEST_CROP -> data?.let { onAvatarCropped(UCrop.getOutput(it)) }
-            }
-        }
-    }
-
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
-        if (allGranted(grantResults)) {
-            when (requestCode) {
-                PERMISSION_REQUEST_CODE_LAUNCH_CAMERA -> onAvatarTypeSelected(true)
-            }
-        }
-    }
-
-    private fun onAvatarCropped(uri: Uri?) {
-        if (uri != null) {
-            setResult(Activity.RESULT_OK, Intent().setData(uri))
-            this@BigImageViewerActivity.finish()
-        } else {
-            Toast.makeText(this, "Cannot retrieve cropped value", Toast.LENGTH_SHORT).show()
-        }
-    }
-
     companion object {
         private const val EXTRA_TITLE = "EXTRA_TITLE"
         private const val EXTRA_IMAGE_URL = "EXTRA_IMAGE_URL"
-        private const val EXTRA_CAN_EDIT_IMAGE = "EXTRA_CAN_EDIT_IMAGE"
 
-        fun newIntent(context: Context, title: String?, imageUrl: String, canEditImage: Boolean = false): Intent {
+        fun newIntent(context: Context, title: String?, imageUrl: String): Intent {
             return Intent(context, BigImageViewerActivity::class.java).apply {
                 putExtra(EXTRA_TITLE, title)
                 putExtra(EXTRA_IMAGE_URL, imageUrl)
-                putExtra(EXTRA_CAN_EDIT_IMAGE, canEditImage)
             }
         }
     }

vector/src/main/java/im/vector/app/features/roomprofile/RoomProfileAction.kt

@@ -17,14 +17,12 @@
 
 package im.vector.app.features.roomprofile
 
-import android.net.Uri
 import im.vector.app.core.platform.VectorViewModelAction
 import org.matrix.android.sdk.api.session.room.notification.RoomNotificationState
 
 sealed class RoomProfileAction : VectorViewModelAction {
     object LeaveRoom : RoomProfileAction()
     data class ChangeRoomNotificationState(val notificationState: RoomNotificationState) : RoomProfileAction()
-    data class ChangeRoomAvatar(val uri: Uri, val fileName: String?) : RoomProfileAction()
     object ShareRoomProfile : RoomProfileAction()
     object CreateShortcut : RoomProfileAction()
 }

vector/src/main/java/im/vector/app/features/roomprofile/RoomProfileFragment.kt

@@ -17,35 +17,26 @@
 
 package im.vector.app.features.roomprofile
 
-import android.app.Activity
-import android.content.Intent
-import android.net.Uri
 import android.os.Bundle
 import android.os.Parcelable
 import android.view.MenuItem
 import android.view.View
-import android.widget.Toast
 import androidx.appcompat.app.AlertDialog
 import androidx.core.app.ActivityOptionsCompat
 import androidx.core.content.pm.ShortcutManagerCompat
-import androidx.core.net.toUri
 import androidx.core.view.ViewCompat
 import androidx.core.view.isVisible
 import com.airbnb.mvrx.args
 import com.airbnb.mvrx.fragmentViewModel
 import com.airbnb.mvrx.withState
-import com.yalantis.ucrop.UCrop
 import im.vector.app.R
 import im.vector.app.core.animations.AppBarStateChangeListener
 import im.vector.app.core.animations.MatrixItemAppBarStateChangeListener
-import im.vector.app.core.dialogs.GalleryOrCameraDialogHelper
 import im.vector.app.core.extensions.cleanup
 import im.vector.app.core.extensions.configureWith
 import im.vector.app.core.extensions.copyOnLongClick
 import im.vector.app.core.extensions.exhaustive
-import im.vector.app.core.extensions.registerStartForActivityResult
 import im.vector.app.core.extensions.setTextOrHide
-import im.vector.app.core.intent.getFilenameFromUri
 import im.vector.app.core.platform.VectorBaseFragment
 import im.vector.app.core.utils.copyToClipboard
 import im.vector.app.core.utils.startSharePlainTextIntent
@@ -56,8 +47,6 @@ import im.vector.app.features.home.room.list.actions.RoomListQuickActionsBottomS
 import im.vector.app.features.home.room.list.actions.RoomListQuickActionsSharedAction
 import im.vector.app.features.home.room.list.actions.RoomListQuickActionsSharedActionViewModel
 import im.vector.app.features.media.BigImageViewerActivity
-import im.vector.app.features.media.createUCropWithDefaultSettings
-import im.vector.lib.multipicker.entity.MultiPickerImageType
 import kotlinx.android.parcel.Parcelize
 import kotlinx.android.synthetic.main.fragment_matrix_profile.*
 import kotlinx.android.synthetic.main.view_stub_room_profile_header.*
@@ -65,7 +54,6 @@ import org.matrix.android.sdk.api.session.room.notification.RoomNotificationStat
 import org.matrix.android.sdk.api.util.MatrixItem
 import org.matrix.android.sdk.api.util.toMatrixItem
 import timber.log.Timber
-import java.io.File
 import javax.inject.Inject
 
 @Parcelize
@@ -78,8 +66,7 @@ class RoomProfileFragment @Inject constructor(
         private val avatarRenderer: AvatarRenderer,
         val roomProfileViewModelFactory: RoomProfileViewModel.Factory
 ) : VectorBaseFragment(),
-        RoomProfileController.Callback,
-        GalleryOrCameraDialogHelper.Listener {
+        RoomProfileController.Callback {
 
     private val roomProfileArgs: RoomProfileArgs by args()
     private lateinit var roomListQuickActionsSharedActionViewModel: RoomListQuickActionsSharedActionViewModel
@@ -92,8 +79,6 @@ class RoomProfileFragment @Inject constructor(
 
     override fun getMenuRes() = R.menu.vector_room_profile
 
-    private val galleryOrCameraDialogHelper = GalleryOrCameraDialogHelper(this)
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         roomListQuickActionsSharedActionViewModel = activityViewModelProvider.get(RoomListQuickActionsSharedActionViewModel::class.java)
@@ -113,11 +98,10 @@ class RoomProfileFragment @Inject constructor(
         matrixProfileAppBarLayout.addOnOffsetChangedListener(appBarStateChangeListener)
         roomProfileViewModel.observeViewEvents {
             when (it) {
-                is RoomProfileViewEvents.Loading            -> showLoading(it.message)
-                is RoomProfileViewEvents.Failure            -> showFailure(it.throwable)
-                is RoomProfileViewEvents.ShareRoomProfile   -> onShareRoomProfile(it.permalink)
-                RoomProfileViewEvents.OnChangeAvatarSuccess -> dismissLoadingDialog()
-                is RoomProfileViewEvents.OnShortcutReady    -> addShortcut(it)
+                is RoomProfileViewEvents.Loading          -> showLoading(it.message)
+                is RoomProfileViewEvents.Failure          -> showFailure(it.throwable)
+                is RoomProfileViewEvents.ShareRoomProfile -> onShareRoomProfile(it.permalink)
+                is RoomProfileViewEvents.OnShortcutReady  -> addShortcut(it)
             }.exhaustive
         }
         roomListQuickActionsSharedActionViewModel
@@ -158,14 +142,6 @@ class RoomProfileFragment @Inject constructor(
         else                                                          -> Timber.v("$action not handled")
     }
 
-    private fun onLeaveRoom() {
-        vectorBaseActivity.finish()
-    }
-
-    private fun showError(throwable: Throwable) {
-        showErrorInSnackbar(throwable)
-    }
-
     private fun setupRecyclerView() {
         roomProfileController.callback = this
         matrixProfileRecyclerView.configureWith(roomProfileController, hasFixedSize = true, disableItemAnimation = true)
@@ -268,46 +244,12 @@ class RoomProfileFragment @Inject constructor(
     }
 
     private fun onAvatarClicked(view: View, matrixItem: MatrixItem.RoomItem) = withState(roomProfileViewModel) {
-        if (matrixItem.avatarUrl?.isNotEmpty() == true) {
-            val intent = BigImageViewerActivity.newIntent(requireContext(), matrixItem.getBestName(), matrixItem.avatarUrl!!, it.canChangeAvatar)
-            val options = ActivityOptionsCompat.makeSceneTransitionAnimation(requireActivity(), view, ViewCompat.getTransitionName(view) ?: "")
-            bigImageStartForActivityResult.launch(intent, options)
-        } else if (it.canChangeAvatar) {
-            galleryOrCameraDialogHelper.show()
-        }
-    }
-
-    override fun onImageReady(image: MultiPickerImageType) {
-        val destinationFile = File(requireContext().cacheDir, "${image.displayName}_edited_image_${System.currentTimeMillis()}")
-        val uri = image.contentUri
-        createUCropWithDefaultSettings(requireContext(), uri, destinationFile.toUri(), image.displayName)
-                .withAspectRatio(1f, 1f)
-                .start(requireContext(), this)
-    }
-
-    private val bigImageStartForActivityResult = registerStartForActivityResult { activityResult ->
-        if (activityResult.resultCode == Activity.RESULT_OK) {
-            activityResult.data?.let { onAvatarCropped(it.data) }
-        }
-    }
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        // TODO handle this one (Ucrop lib)
-        @Suppress("DEPRECATION")
-        super.onActivityResult(requestCode, resultCode, data)
-
-        if (resultCode == Activity.RESULT_OK) {
-            when (requestCode) {
-                UCrop.REQUEST_CROP -> data?.let { onAvatarCropped(UCrop.getOutput(it)) }
-            }
-        }
-    }
-
-    private fun onAvatarCropped(uri: Uri?) {
-        if (uri != null) {
-            roomProfileViewModel.handle(RoomProfileAction.ChangeRoomAvatar(uri, getFilenameFromUri(context, uri)))
-        } else {
-            Toast.makeText(requireContext(), "Cannot retrieve cropped value", Toast.LENGTH_SHORT).show()
-        }
+        matrixItem.avatarUrl
+                ?.takeIf { it.isNotEmpty() }
+                ?.let { avatarUrl ->
+                    val intent = BigImageViewerActivity.newIntent(requireContext(), matrixItem.getBestName(), avatarUrl)
+                    val options = ActivityOptionsCompat.makeSceneTransitionAnimation(requireActivity(), view, ViewCompat.getTransitionName(view) ?: "")
+                    startActivity(intent, options.toBundle())
+                }
     }
 }

vector/src/main/java/im/vector/app/features/roomprofile/RoomProfileViewEvents.kt

@@ -26,7 +26,6 @@ sealed class RoomProfileViewEvents : VectorViewEvents {
     data class Loading(val message: CharSequence? = null) : RoomProfileViewEvents()
     data class Failure(val throwable: Throwable) : RoomProfileViewEvents()
 
-    object OnChangeAvatarSuccess : RoomProfileViewEvents()
     data class ShareRoomProfile(val permalink: String) : RoomProfileViewEvents()
     data class OnShortcutReady(val shortcutInfo: ShortcutInfoCompat) : RoomProfileViewEvents()
 }

vector/src/main/java/im/vector/app/features/roomprofile/RoomProfileViewModel.kt

@@ -28,18 +28,15 @@ import im.vector.app.core.extensions.exhaustive
 import im.vector.app.core.platform.VectorViewModel
 import im.vector.app.core.resources.StringProvider
 import im.vector.app.features.home.ShortcutCreator
-import im.vector.app.features.powerlevel.PowerLevelsObservableFactory
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import org.matrix.android.sdk.api.MatrixCallback
 import org.matrix.android.sdk.api.session.Session
-import org.matrix.android.sdk.api.session.events.model.EventType
 import org.matrix.android.sdk.api.session.room.members.roomMemberQueryParams
 import org.matrix.android.sdk.api.session.room.model.Membership
-import org.matrix.android.sdk.api.session.room.powerlevels.PowerLevelsHelper
+import org.matrix.android.sdk.rx.RxRoom
 import org.matrix.android.sdk.rx.rx
 import org.matrix.android.sdk.rx.unwrap
-import java.util.UUID
 
 class RoomProfileViewModel @AssistedInject constructor(
         @Assisted private val initialState: RoomProfileViewState,
@@ -65,33 +62,23 @@ class RoomProfileViewModel @AssistedInject constructor(
     private val room = session.getRoom(initialState.roomId)!!
 
     init {
-        observeRoomSummary()
+        val rxRoom = room.rx()
+        observeRoomSummary(rxRoom)
+        observeBannedRoomMembers(rxRoom)
     }
 
-    private fun observeRoomSummary() {
-        val rxRoom = room.rx()
+    private fun observeRoomSummary(rxRoom: RxRoom) {
         rxRoom.liveRoomSummary()
                 .unwrap()
                 .execute {
                     copy(roomSummary = it)
                 }
+    }
 
-        val powerLevelsContentLive = PowerLevelsObservableFactory(room).createObservable()
-
-        powerLevelsContentLive
-                .subscribe {
-                    val powerLevelsHelper = PowerLevelsHelper(it)
-                    setState {
-                        copy(canChangeAvatar = powerLevelsHelper.isUserAllowedToSend(session.myUserId, true, EventType.STATE_ROOM_AVATAR))
-                    }
-                }
-                .disposeOnClear()
-
+    private fun observeBannedRoomMembers(rxRoom: RxRoom) {
         rxRoom.liveRoomMembers(roomMemberQueryParams { memberships = listOf(Membership.BAN) })
                 .execute {
-                    copy(
-                            bannedMembership = it
-                    )
+                    copy(bannedMembership = it)
                 }
     }
 
@@ -100,7 +87,6 @@ class RoomProfileViewModel @AssistedInject constructor(
             RoomProfileAction.LeaveRoom                      -> handleLeaveRoom()
             is RoomProfileAction.ChangeRoomNotificationState -> handleChangeNotificationMode(action)
             is RoomProfileAction.ShareRoomProfile            -> handleShareRoomProfile()
-            is RoomProfileAction.ChangeRoomAvatar            -> handleChangeAvatar(action)
             RoomProfileAction.CreateShortcut                 -> handleCreateShortcut()
         }.exhaustive
     }
@@ -142,18 +128,4 @@ class RoomProfileViewModel @AssistedInject constructor(
                     _viewEvents.post(RoomProfileViewEvents.ShareRoomProfile(permalink))
                 }
     }
-
-    private fun handleChangeAvatar(action: RoomProfileAction.ChangeRoomAvatar) {
-        _viewEvents.post(RoomProfileViewEvents.Loading())
-        room.rx().updateAvatar(action.uri, action.fileName ?: UUID.randomUUID().toString())
-                .subscribe(
-                        {
-                            _viewEvents.post(RoomProfileViewEvents.OnChangeAvatarSuccess)
-                        },
-                        {
-                            _viewEvents.post(RoomProfileViewEvents.Failure(it))
-                        }
-                )
-                .disposeOnClear()
-    }
 }

vector/src/main/java/im/vector/app/features/roomprofile/RoomProfileViewState.kt

@@ -26,8 +26,7 @@ import org.matrix.android.sdk.api.session.room.model.RoomSummary
 data class RoomProfileViewState(
         val roomId: String,
         val roomSummary: Async<RoomSummary> = Uninitialized,
-        val bannedMembership: Async<List<RoomMemberSummary>> = Uninitialized,
-        val canChangeAvatar: Boolean = false
+        val bannedMembership: Async<List<RoomMemberSummary>> = Uninitialized
 ) : MvRxState {
 
     constructor(args: RoomProfileArgs) : this(roomId = args.roomId)

vector/src/main/java/im/vector/app/features/roomprofile/settings/RoomSettingsAction.kt

@@ -20,6 +20,7 @@ import im.vector.app.core.platform.VectorViewModelAction
 import org.matrix.android.sdk.api.session.room.model.RoomHistoryVisibility
 
 sealed class RoomSettingsAction : VectorViewModelAction {
+    data class SetAvatarAction(val avatarAction: RoomSettingsViewState.AvatarAction) : RoomSettingsAction()
     data class SetRoomName(val newName: String) : RoomSettingsAction()
     data class SetRoomTopic(val newTopic: String) : RoomSettingsAction()
     data class SetRoomHistoryVisibility(val visibility: RoomHistoryVisibility) : RoomSettingsAction()

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

@@ -23,20 +23,27 @@ import im.vector.app.core.epoxy.profiles.buildProfileSection
 import im.vector.app.core.resources.ColorProvider
 import im.vector.app.core.resources.StringProvider
 import im.vector.app.features.form.formEditTextItem
+import im.vector.app.features.form.formEditableAvatarItem
+import im.vector.app.features.home.AvatarRenderer
 import im.vector.app.features.home.room.detail.timeline.format.RoomHistoryVisibilityFormatter
 import org.matrix.android.sdk.api.session.events.model.Event
 import org.matrix.android.sdk.api.session.events.model.toModel
 import org.matrix.android.sdk.api.session.room.model.RoomHistoryVisibilityContent
 import org.matrix.android.sdk.api.session.room.model.RoomSummary
+import org.matrix.android.sdk.api.util.toMatrixItem
 import javax.inject.Inject
 
 class RoomSettingsController @Inject constructor(
         private val stringProvider: StringProvider,
+        private val avatarRenderer: AvatarRenderer,
         private val roomHistoryVisibilityFormatter: RoomHistoryVisibilityFormatter,
         colorProvider: ColorProvider
 ) : TypedEpoxyController<RoomSettingsViewState>() {
 
     interface Callback {
+        // Delete the avatar, or cancel an avatar change
+        fun onAvatarDelete()
+        fun onAvatarChange()
         fun onEnableEncryptionClicked()
         fun onNameChanged(name: String)
         fun onTopicChanged(topic: String)
@@ -58,6 +65,25 @@ class RoomSettingsController @Inject constructor(
         val historyVisibility = data.historyVisibilityEvent?.let { formatRoomHistoryVisibilityEvent(it) } ?: ""
         val newHistoryVisibility = data.newHistoryVisibility?.let { roomHistoryVisibilityFormatter.format(it) }
 
+        formEditableAvatarItem {
+            id("avatar")
+            enabled(data.actionPermissions.canChangeAvatar)
+            when (val avatarAction = data.avatarAction) {
+                RoomSettingsViewState.AvatarAction.None -> {
+                    // Use the current value
+                    avatarRenderer(avatarRenderer)
+                    // We do not want to use the fallback avatar url, which can be the other user avatar, or the current user avatar.
+                    matrixItem(roomSummary.toMatrixItem().copy(avatarUrl = data.currentRoomAvatarUrl))
+                }
+                RoomSettingsViewState.AvatarAction.DeleteAvatar ->
+                    imageUri(null)
+                is RoomSettingsViewState.AvatarAction.UpdateAvatar ->
+                    imageUri(avatarAction.newAvatarUri)
+            }
+            clickListener { callback?.onAvatarChange() }
+            deleteListener { callback?.onAvatarDelete() }
+        }
+
         buildProfileSection(
                 stringProvider.getString(R.string.settings)
         )

vector/src/main/java/im/vector/app/features/roomprofile/settings/RoomSettingsFragment.kt

@@ -16,30 +16,41 @@
 
 package im.vector.app.features.roomprofile.settings
 
+import android.app.Activity
+import android.content.Intent
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
 import android.view.View
 import androidx.appcompat.app.AlertDialog
+import androidx.core.net.toUri
 import androidx.core.view.isVisible
 import com.airbnb.mvrx.args
 import com.airbnb.mvrx.fragmentViewModel
 import com.airbnb.mvrx.withState
+import com.yalantis.ucrop.UCrop
 import im.vector.app.R
+import im.vector.app.core.dialogs.GalleryOrCameraDialogHelper
 import im.vector.app.core.extensions.cleanup
 import im.vector.app.core.extensions.configureWith
 import im.vector.app.core.extensions.exhaustive
+import im.vector.app.core.intent.getFilenameFromUri
+import im.vector.app.core.platform.OnBackPressed
 import im.vector.app.core.platform.VectorBaseFragment
 import im.vector.app.core.utils.toast
 import im.vector.app.features.home.AvatarRenderer
 import im.vector.app.features.home.room.detail.timeline.format.RoomHistoryVisibilityFormatter
+import im.vector.app.features.media.createUCropWithDefaultSettings
 import im.vector.app.features.roomprofile.RoomProfileArgs
+import im.vector.lib.multipicker.entity.MultiPickerImageType
 import kotlinx.android.synthetic.main.fragment_room_setting_generic.*
 import kotlinx.android.synthetic.main.merge_overlay_waiting_view.*
 import org.matrix.android.sdk.api.session.events.model.toModel
 import org.matrix.android.sdk.api.session.room.model.RoomHistoryVisibility
 import org.matrix.android.sdk.api.session.room.model.RoomHistoryVisibilityContent
 import org.matrix.android.sdk.api.util.toMatrixItem
+import java.io.File
+import java.util.UUID
 import javax.inject.Inject
 
 class RoomSettingsFragment @Inject constructor(
@@ -47,10 +58,15 @@ class RoomSettingsFragment @Inject constructor(
         private val controller: RoomSettingsController,
         private val roomHistoryVisibilityFormatter: RoomHistoryVisibilityFormatter,
         private val avatarRenderer: AvatarRenderer
-) : VectorBaseFragment(), RoomSettingsController.Callback {
+) :
+        VectorBaseFragment(),
+        RoomSettingsController.Callback,
+        OnBackPressed,
+        GalleryOrCameraDialogHelper.Listener {
 
     private val viewModel: RoomSettingsViewModel by fragmentViewModel()
     private val roomProfileArgs: RoomProfileArgs by args()
+    private val galleryOrCameraDialogHelper = GalleryOrCameraDialogHelper(this)
 
     override fun getLayoutResId() = R.layout.fragment_room_setting_generic
 
@@ -161,4 +177,77 @@ class RoomSettingsFragment @Inject constructor(
     override fun onAliasChanged(alias: String) {
         viewModel.handle(RoomSettingsAction.SetRoomCanonicalAlias(alias))
     }
+
+    override fun onImageReady(image: MultiPickerImageType) {
+        val destinationFile = File(requireContext().cacheDir, "${image.displayName}_edited_image_${System.currentTimeMillis()}")
+        val uri = image.contentUri
+        createUCropWithDefaultSettings(requireContext(), uri, destinationFile.toUri(), image.displayName)
+                .withAspectRatio(1f, 1f)
+                .start(requireContext(), this)
+    }
+
+    override fun onAvatarDelete() {
+        withState(viewModel) {
+            when (it.avatarAction) {
+                RoomSettingsViewState.AvatarAction.None -> {
+                    viewModel.handle(RoomSettingsAction.SetAvatarAction(RoomSettingsViewState.AvatarAction.DeleteAvatar))
+                }
+                RoomSettingsViewState.AvatarAction.DeleteAvatar -> {
+                    /* Should not happen */
+                    Unit
+                }
+                is RoomSettingsViewState.AvatarAction.UpdateAvatar -> {
+                    // Cancel the update of the avatar
+                    viewModel.handle(RoomSettingsAction.SetAvatarAction(RoomSettingsViewState.AvatarAction.None))
+                }
+            }
+        }
+    }
+
+    override fun onAvatarChange() {
+        galleryOrCameraDialogHelper.show()
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        // TODO handle this one (Ucrop lib)
+        @Suppress("DEPRECATION")
+        super.onActivityResult(requestCode, resultCode, data)
+
+        if (resultCode == Activity.RESULT_OK) {
+            when (requestCode) {
+                UCrop.REQUEST_CROP -> {
+                    val uri = data?.let { UCrop.getOutput(it) } ?: return
+                    viewModel.handle(RoomSettingsAction.SetAvatarAction(
+                            RoomSettingsViewState.AvatarAction.UpdateAvatar(
+                                    newAvatarUri = uri,
+                                    newAvatarFileName = getFilenameFromUri(requireContext(), uri) ?: UUID.randomUUID().toString())
+                    )
+                    )
+                }
+            }
+        }
+    }
+
+    private var ignoreChanges = false
+
+    override fun onBackPressed(toolbarButton: Boolean): Boolean {
+        if (ignoreChanges) return false
+
+        return withState(viewModel) {
+            return@withState if (it.showSaveAction) {
+                AlertDialog.Builder(requireContext())
+                        .setTitle(R.string.dialog_title_warning)
+                        .setMessage(R.string.warning_unsaved_change)
+                        .setPositiveButton(R.string.warning_unsaved_change_discard) { _, _ ->
+                            ignoreChanges = true
+                            vectorBaseActivity.onBackPressed()
+                        }
+                        .setNegativeButton(R.string.cancel, null)
+                        .show()
+                true
+            } else {
+                false
+            }
+        }
+    }
 }

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

@@ -27,9 +27,13 @@ import im.vector.app.features.powerlevel.PowerLevelsObservableFactory
 import io.reactivex.Completable
 import io.reactivex.Observable
 import org.matrix.android.sdk.api.MatrixCallback
+import org.matrix.android.sdk.api.query.QueryStringValue
 import org.matrix.android.sdk.api.session.Session
 import org.matrix.android.sdk.api.session.events.model.EventType
+import org.matrix.android.sdk.api.session.events.model.toModel
+import org.matrix.android.sdk.api.session.room.model.RoomAvatarContent
 import org.matrix.android.sdk.api.session.room.powerlevels.PowerLevelsHelper
+import org.matrix.android.sdk.rx.mapOptional
 import org.matrix.android.sdk.rx.rx
 import org.matrix.android.sdk.rx.unwrap
 
@@ -55,16 +59,19 @@ class RoomSettingsViewModel @AssistedInject constructor(@Assisted initialState:
 
     init {
         observeRoomSummary()
+        observeRoomAvatar()
         observeState()
     }
 
     private fun observeState() {
         selectSubscribe(
+                RoomSettingsViewState::avatarAction,
                 RoomSettingsViewState::newName,
                 RoomSettingsViewState::newCanonicalAlias,
                 RoomSettingsViewState::newTopic,
                 RoomSettingsViewState::newHistoryVisibility,
-                RoomSettingsViewState::roomSummary) { newName,
+                RoomSettingsViewState::roomSummary) { avatarAction,
+                                                      newName,
                                                       newCanonicalAlias,
                                                       newTopic,
                                                       newHistoryVisibility,
@@ -72,7 +79,8 @@ class RoomSettingsViewModel @AssistedInject constructor(@Assisted initialState:
             val summary = asyncSummary()
             setState {
                 copy(
-                        showSaveAction = summary?.name != newName
+                        showSaveAction = avatarAction !is RoomSettingsViewState.AvatarAction.None
+                                || summary?.name != newName
                                 || summary?.topic != newTopic
                                 || summary?.canonicalAlias != newCanonicalAlias?.takeIf { it.isNotEmpty() }
                                 || newHistoryVisibility != null
@@ -101,6 +109,7 @@ class RoomSettingsViewModel @AssistedInject constructor(@Assisted initialState:
                 .subscribe {
                     val powerLevelsHelper = PowerLevelsHelper(it)
                     val permissions = RoomSettingsViewState.ActionPermissions(
+                            canChangeAvatar = powerLevelsHelper.isUserAllowedToSend(session.myUserId, true, EventType.STATE_ROOM_AVATAR),
                             canChangeName = powerLevelsHelper.isUserAllowedToSend(session.myUserId, true, EventType.STATE_ROOM_NAME),
                             canChangeTopic = powerLevelsHelper.isUserAllowedToSend(session.myUserId, true, EventType.STATE_ROOM_TOPIC),
                             canChangeCanonicalAlias = powerLevelsHelper.isUserAllowedToSend(session.myUserId, true,
@@ -114,9 +123,24 @@ class RoomSettingsViewModel @AssistedInject constructor(@Assisted initialState:
                 .disposeOnClear()
     }
 
+    /**
+     * We do not want to use the fallback avatar url, which can be the other user avatar, or the current user avatar.
+     */
+    private fun observeRoomAvatar() {
+        room.rx()
+                .liveStateEvent(EventType.STATE_ROOM_AVATAR, QueryStringValue.NoCondition)
+                .mapOptional { it.content.toModel<RoomAvatarContent>() }
+                .unwrap()
+                .subscribe {
+                    setState { copy(currentRoomAvatarUrl = it.avatarUrl) }
+                }
+                .disposeOnClear()
+    }
+
     override fun handle(action: RoomSettingsAction) {
         when (action) {
             is RoomSettingsAction.EnableEncryption         -> handleEnableEncryption()
+            is RoomSettingsAction.SetAvatarAction          -> setState { copy(avatarAction = action.avatarAction) }
             is RoomSettingsAction.SetRoomName              -> setState { copy(newName = action.newName) }
             is RoomSettingsAction.SetRoomTopic             -> setState { copy(newTopic = action.newTopic) }
             is RoomSettingsAction.SetRoomHistoryVisibility -> setState { copy(newHistoryVisibility = action.visibility) }
@@ -132,6 +156,15 @@ class RoomSettingsViewModel @AssistedInject constructor(@Assisted initialState:
 
         val summary = state.roomSummary.invoke()
 
+        when (val avatarAction = state.avatarAction) {
+            RoomSettingsViewState.AvatarAction.None            -> Unit
+            RoomSettingsViewState.AvatarAction.DeleteAvatar -> {
+                operationList.add(room.rx().deleteAvatar())
+            }
+            is RoomSettingsViewState.AvatarAction.UpdateAvatar -> {
+                operationList.add(room.rx().updateAvatar(avatarAction.newAvatarUri, avatarAction.newAvatarFileName))
+            }
+        }
         if (summary?.name != state.newName) {
             operationList.add(room.rx().updateName(state.newName ?: ""))
         }

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

@@ -16,6 +16,7 @@
 
 package im.vector.app.features.roomprofile.settings
 
+import android.net.Uri
 import com.airbnb.mvrx.Async
 import com.airbnb.mvrx.MvRxState
 import com.airbnb.mvrx.Uninitialized
@@ -29,6 +30,8 @@ data class RoomSettingsViewState(
         val historyVisibilityEvent: Event? = null,
         val roomSummary: Async<RoomSummary> = Uninitialized,
         val isLoading: Boolean = false,
+        val currentRoomAvatarUrl: String? = null,
+        val avatarAction: AvatarAction = AvatarAction.None,
         val newName: String? = null,
         val newTopic: String? = null,
         val newHistoryVisibility: RoomHistoryVisibility? = null,
@@ -40,10 +43,18 @@ data class RoomSettingsViewState(
     constructor(args: RoomProfileArgs) : this(roomId = args.roomId)
 
     data class ActionPermissions(
+            val canChangeAvatar: Boolean = false,
             val canChangeName: Boolean = false,
             val canChangeTopic: Boolean = false,
             val canChangeCanonicalAlias: Boolean = false,
             val canChangeHistoryReadability: Boolean = false,
             val canEnableEncryption: Boolean = false
     )
+
+    sealed class AvatarAction {
+        object None : AvatarAction()
+        object DeleteAvatar : AvatarAction()
+        data class UpdateAvatar(val newAvatarUri: Uri,
+                                val newAvatarFileName: String) : AvatarAction()
+    }
 }

vector/src/main/res/menu/vector_big_avatar_viewer.xml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
-    <item
-        android:id="@+id/bigAvatarEditAction"
-        android:title="@string/edit"
-        android:icon="@drawable/ic_edit"
-        app:iconTint="?attr/colorAccent"
-        app:showAsAction="ifRoom" />
-</menu>

vector/src/main/res/values/strings.xml

@@ -2630,4 +2630,6 @@
 
     <!-- Universal link -->
     <string name="universal_link_malformed">The link was malformed</string>
+    <string name="warning_unsaved_change">There are unsaved changes. Discard the changes?</string>
+    <string name="warning_unsaved_change_discard">Discard changes</string>
 </resources>