16 files changed, 509 insertions(+), 57 deletions(-)

M matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/user/UserService.kt
M matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/user/DefaultUserService.kt
M vector/src/main/AndroidManifest.xml
M vector/src/main/java/im/vector/app/features/home/HomeActivity.kt
M vector/src/main/java/im/vector/app/features/home/room/detail/RoomDetailFragment.kt
A vector/src/main/java/im/vector/app/features/matrixto/MatrixToAction.kt
M vector/src/main/java/im/vector/app/features/matrixto/MatrixToBottomSheet.kt
A vector/src/main/java/im/vector/app/features/matrixto/MatrixToBottomSheetState.kt
A vector/src/main/java/im/vector/app/features/matrixto/MatrixToBottomSheetViewModel.kt
A vector/src/main/java/im/vector/app/features/matrixto/MatrixToViewEvents.kt
M vector/src/main/java/im/vector/app/features/permalink/PermalinkHandler.kt
M vector/src/main/java/im/vector/app/features/permalink/PermalinkHandlerActivity.kt
M vector/src/main/java/im/vector/app/features/usercode/UserCodeActivity.kt
M vector/src/main/java/im/vector/app/features/usercode/UserCodeSharedViewModel.kt
M vector/src/main/java/im/vector/app/features/usercode/UserCodeState.kt
M vector/src/main/res/layout/bottom_sheet_matrix_to_card.xml

@@ 36,6 36,11 @@ interface UserService {
     fun getUser(userId: String): User?
 
     /**
+     * Try to resolve user from known users, or using profile api
+     */
+    fun resolveUser(userId: String, callback: MatrixCallback<User>)
+
+    /**
      * Search list of users on server directory.
      * @param search the searched term
      * @param limit the max number of users to return

@@ 19,10 19,13 @@ package org.matrix.android.sdk.internal.session.user
 import androidx.lifecycle.LiveData
 import androidx.paging.PagedList
 import org.matrix.android.sdk.api.MatrixCallback
+import org.matrix.android.sdk.api.session.profile.ProfileService
 import org.matrix.android.sdk.api.session.user.UserService
 import org.matrix.android.sdk.api.session.user.model.User
 import org.matrix.android.sdk.api.util.Cancelable
+import org.matrix.android.sdk.api.util.JsonDict
 import org.matrix.android.sdk.api.util.Optional
+import org.matrix.android.sdk.internal.session.profile.GetProfileInfoTask
 import org.matrix.android.sdk.internal.session.user.accountdata.UpdateIgnoredUserIdsTask
 import org.matrix.android.sdk.internal.session.user.model.SearchUserTask
 import org.matrix.android.sdk.internal.task.TaskExecutor


@@ 32,12 35,40 @@ import javax.inject.Inject
 internal class DefaultUserService @Inject constructor(private val userDataSource: UserDataSource,
                                                       private val searchUserTask: SearchUserTask,
                                                       private val updateIgnoredUserIdsTask: UpdateIgnoredUserIdsTask,
+                                                      private val getProfileInfoTask: GetProfileInfoTask,
                                                       private val taskExecutor: TaskExecutor) : UserService {
 
     override fun getUser(userId: String): User? {
         return userDataSource.getUser(userId)
     }
 
+    override fun resolveUser(userId: String, callback: MatrixCallback<User>) {
+        val known = getUser(userId)
+        if (known != null) {
+            callback.onSuccess(known)
+        } else {
+            val params = GetProfileInfoTask.Params(userId)
+            getProfileInfoTask
+                    .configureWith(params) {
+                        this.callback = object : MatrixCallback<JsonDict> {
+                            override fun onSuccess(data: JsonDict) {
+                                callback.onSuccess(
+                                        User(
+                                                userId,
+                                                data[ProfileService.DISPLAY_NAME_KEY] as? String,
+                                                data[ProfileService.AVATAR_URL_KEY] as? String)
+                                )
+                            }
+
+                            override fun onFailure(failure: Throwable) {
+                                callback.onFailure(failure)
+                            }
+                        }
+                    }
+                    .executeBy(taskExecutor)
+        }
+    }
+
     override fun getUserLive(userId: String): LiveData<Optional<User>> {
         return userDataSource.getUserLive(userId)
     }

@@ 81,7 81,8 @@
                 android:resource="@xml/shortcuts" />
         </activity-alias>
 
-        <activity android:name=".features.home.HomeActivity" />
+        <activity android:name=".features.home.HomeActivity"
+            android:launchMode="singleTask"/>
         <activity
             android:name=".features.login.LoginActivity"
             android:launchMode="singleTask"


@@ 189,10 190,9 @@
         <activity
             android:name=".features.signout.soft.SoftLogoutActivity"
             android:windowSoftInputMode="adjustResize" />
-        <activity android:name=".features.permalink.PermalinkHandlerActivity">
+        <activity android:name=".features.permalink.PermalinkHandlerActivity" android:launchMode="singleTask">
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
-
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
 

@@ 18,6 18,7 @@ package im.vector.app.features.home
 
 import android.content.Context
 import android.content.Intent
+import android.net.Uri
 import android.os.Bundle
 import android.os.Parcelable
 import android.view.MenuItem


@@ 38,8 39,12 @@ import im.vector.app.core.extensions.replaceFragment
 import im.vector.app.core.platform.ToolbarConfigurable
 import im.vector.app.core.platform.VectorBaseActivity
 import im.vector.app.core.pushers.PushersManager
+import im.vector.app.core.utils.toast
 import im.vector.app.features.disclaimer.showDisclaimerDialog
+import im.vector.app.features.matrixto.MatrixToBottomSheet
 import im.vector.app.features.notifications.NotificationDrawerManager
+import im.vector.app.features.permalink.NavigationInterceptor
+import im.vector.app.features.permalink.PermalinkHandler
 import im.vector.app.features.popup.DefaultVectorAlert
 import im.vector.app.features.popup.PopupAlertManager
 import im.vector.app.features.popup.VerificationVectorAlert


@@ 50,10 55,12 @@ import im.vector.app.features.themes.ThemeUtils
 import im.vector.app.features.workers.signout.ServerBackupStatusViewModel
 import im.vector.app.features.workers.signout.ServerBackupStatusViewState
 import im.vector.app.push.fcm.FcmHelper
+import io.reactivex.android.schedulers.AndroidSchedulers
 import kotlinx.android.parcel.Parcelize
 import kotlinx.android.synthetic.main.activity_home.*
 import kotlinx.android.synthetic.main.merge_overlay_waiting_view.*
 import org.matrix.android.sdk.api.session.InitialSyncProgressService
+import org.matrix.android.sdk.api.session.permalinks.PermalinkService
 import org.matrix.android.sdk.api.util.MatrixItem
 import timber.log.Timber
 import javax.inject.Inject


@@ 64,7 71,8 @@ data class HomeActivityArgs(
         val accountCreation: Boolean
 ) : Parcelable
 
-class HomeActivity : VectorBaseActivity(), ToolbarConfigurable, UnknownDeviceDetectorSharedViewModel.Factory, ServerBackupStatusViewModel.Factory {
+class HomeActivity : VectorBaseActivity(), ToolbarConfigurable, UnknownDeviceDetectorSharedViewModel.Factory, ServerBackupStatusViewModel.Factory,
+        NavigationInterceptor {
 
     private lateinit var sharedActionViewModel: HomeSharedActionViewModel
 


@@ 82,6 90,7 @@ class HomeActivity : VectorBaseActivity(), ToolbarConfigurable, UnknownDeviceDet
     @Inject lateinit var popupAlertManager: PopupAlertManager
     @Inject lateinit var shortcutsHandler: ShortcutsHandler
     @Inject lateinit var unknownDeviceViewModelFactory: UnknownDeviceDetectorSharedViewModel.Factory
+    @Inject lateinit var permalinkHandler: PermalinkHandler
 
     private val drawerListener = object : DrawerLayout.SimpleDrawerListener() {
         override fun onDrawerStateChanged(newState: Int) {


@@ 145,6 154,28 @@ class HomeActivity : VectorBaseActivity(), ToolbarConfigurable, UnknownDeviceDet
 
         shortcutsHandler.observeRoomsAndBuildShortcuts()
                 .disposeOnDestroy()
+
+        if (isFirstCreation()) {
+            handleIntent(intent)
+        }
+    }
+
+    private fun handleIntent(intent: Intent?) {
+        intent?.dataString?.let { deepLink ->
+            if (!deepLink.startsWith(PermalinkService.MATRIX_TO_URL_BASE)) return@let
+
+            permalinkHandler.launch(this, deepLink,
+                    navigationInterceptor = this,
+                    buildTask = true)
+                    // .delay(500, TimeUnit.MILLISECONDS)
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .subscribe { isHandled ->
+                        if (!isHandled) {
+                            toast(R.string.permalink_malformed)
+                        }
+                    }
+                    .disposeOnDestroy()
+        }
     }
 
     private fun renderState(state: HomeActivityViewState) {


@@ 270,6 301,7 @@ class HomeActivity : VectorBaseActivity(), ToolbarConfigurable, UnknownDeviceDet
         if (intent?.getParcelableExtra<HomeActivityArgs>(MvRx.KEY_ARG)?.clearNotification == true) {
             notificationDrawerManager.clearAllEvents()
         }
+        handleIntent(intent)
     }
 
     override fun onDestroy() {


@@ 313,11 345,11 @@ class HomeActivity : VectorBaseActivity(), ToolbarConfigurable, UnknownDeviceDet
                 bugReporter.openBugReportScreen(this, false)
                 return true
             }
-            R.id.menu_home_filter     -> {
+            R.id.menu_home_filter -> {
                 navigator.openRoomsFiltering(this)
                 return true
             }
-            R.id.menu_home_setting    -> {
+            R.id.menu_home_setting -> {
                 navigator.openSettings(this)
                 return true
             }


@@ 334,6 366,18 @@ class HomeActivity : VectorBaseActivity(), ToolbarConfigurable, UnknownDeviceDet
         }
     }
 
+    override fun navToMemberProfile(userId: String, deepLink: Uri): Boolean {
+        val listener = object : MatrixToBottomSheet.InteractionListener {
+            override fun navigateToRoom(roomId: String) {
+                navigator.openRoom(this@HomeActivity, roomId)
+            }
+        }
+        // TODO check if there is already one??
+        MatrixToBottomSheet.withLink(deepLink.toString(), listener)
+                .show(supportFragmentManager, "HA#MatrixToBottomSheet")
+        return true
+    }
+
     companion object {
         fun newIntent(context: Context, clearNotification: Boolean = false, accountCreation: Boolean = false): Intent {
             val args = HomeActivityArgs(

@@ 1460,7 1460,7 @@ class RoomDetailFragment @Inject constructor(
                         return false
                     }
 
-                    override fun navToMemberProfile(userId: String): Boolean {
+                    override fun navToMemberProfile(userId: String, deepLink: Uri): Boolean {
                         openRoomMemberProfile(userId)
                         return true
                     }

@@ 0,0 1,24 @@
+/*
+ * Copyright (c) 2020 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.app.features.matrixto
+
+import im.vector.app.core.platform.VectorViewModelAction
+import org.matrix.android.sdk.api.util.MatrixItem
+
+sealed class MatrixToAction : VectorViewModelAction {
+    data class StartChattingWithUser(val matrixItem: MatrixItem) : MatrixToAction()
+}

@@ 17,23 17,37 @@
 package im.vector.app.features.matrixto
 
 import android.os.Bundle
+import android.os.Parcelable
 import android.view.View
+import androidx.core.view.isInvisible
+import androidx.core.view.isVisible
+import com.airbnb.mvrx.Fail
+import com.airbnb.mvrx.Loading
+import com.airbnb.mvrx.MvRx
+import com.airbnb.mvrx.Success
+import com.airbnb.mvrx.Uninitialized
+import com.airbnb.mvrx.fragmentViewModel
+import com.airbnb.mvrx.withState
 import im.vector.app.R
 import im.vector.app.core.di.ScreenComponent
 import im.vector.app.core.extensions.setTextOrHide
 import im.vector.app.core.platform.VectorBaseBottomSheetDialogFragment
 import im.vector.app.features.home.AvatarRenderer
+import kotlinx.android.parcel.Parcelize
 import kotlinx.android.synthetic.main.bottom_sheet_matrix_to_card.*
-import org.matrix.android.sdk.api.util.MatrixItem
 import javax.inject.Inject
 
-class MatrixToBottomSheet(private val matrixItem: MatrixItem) : VectorBaseBottomSheetDialogFragment() {
+class MatrixToBottomSheet : VectorBaseBottomSheetDialogFragment() {
+
+    @Parcelize
+    data class MatrixToArgs(
+            val matrixToLink: String
+    ) : Parcelable
 
     @Inject lateinit var avatarRenderer: AvatarRenderer
 
-    interface InteractionListener {
-        fun didTapStartMessage(matrixItem: MatrixItem)
-    }
+    @Inject
+    lateinit var matrixToBottomSheetViewModelFactory: MatrixToBottomSheetViewModel.Factory
 
     override fun injectWith(injector: ScreenComponent) {
         injector.inject(this)


@@ 43,21 57,87 @@ class MatrixToBottomSheet(private val matrixItem: MatrixItem) : VectorBaseBottom
 
     override fun getLayoutResId() = R.layout.bottom_sheet_matrix_to_card
 
+    private val viewModel by fragmentViewModel(MatrixToBottomSheetViewModel::class)
+
+    interface InteractionListener {
+        fun navigateToRoom(roomId: String)
+    }
+
+    override fun invalidate() = withState(viewModel) { state ->
+        super.invalidate()
+        when (val item = state.matrixItem) {
+            Uninitialized -> {
+                matrixToCardContentLoading.isVisible = false
+                matrixToCardUserContentVisibility.isVisible = false
+            }
+            is Loading -> {
+                matrixToCardContentLoading.isVisible = true
+                matrixToCardUserContentVisibility.isVisible = false
+            }
+            is Success -> {
+                matrixToCardContentLoading.isVisible = false
+                matrixToCardUserContentVisibility.isVisible = true
+                matrixToCardNameText.setTextOrHide(item.invoke().displayName)
+                matrixToCardUserIdText.setTextOrHide(item.invoke().id)
+                avatarRenderer.render(item.invoke(), matrixToCardAvatar)
+            }
+            is Fail -> {
+                // TODO display some error copy?
+                dismiss()
+            }
+        }
+
+        when (state.startChattingState) {
+            Uninitialized -> {
+                matrixToCardButtonLoading.isVisible = false
+                matrixToCardSendMessageButton.isVisible = false
+            }
+            is Success -> {
+                matrixToCardButtonLoading.isVisible = false
+                matrixToCardSendMessageButton.isVisible = true
+            }
+            is Fail -> {
+                matrixToCardButtonLoading.isVisible = false
+                matrixToCardSendMessageButton.isVisible = true
+                // TODO display some error copy?
+                dismiss()
+            }
+            is Loading -> {
+                matrixToCardButtonLoading.isVisible = true
+                matrixToCardSendMessageButton.isInvisible = true
+            }
+        }
+    }
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         matrixToCardSendMessageButton.debouncedClicks {
-            interactionListener?.didTapStartMessage(matrixItem)
-            dismiss()
+            withState(viewModel) {
+                it.matrixItem.invoke()?.let { item ->
+                    viewModel.handle(MatrixToAction.StartChattingWithUser(item))
+                }
+            }
         }
 
-        matrixToCardNameText.setTextOrHide(matrixItem.displayName)
-        matrixToCardUserIdText.setTextOrHide(matrixItem.id)
-        avatarRenderer.render(matrixItem, matrixToCardAvatar)
+        viewModel.observeViewEvents {
+            when (it) {
+                is MatrixToViewEvents.NavigateToRoom -> {
+                    interactionListener?.navigateToRoom(it.roomId)
+                    dismiss()
+                }
+                MatrixToViewEvents.Dismiss -> dismiss()
+            }
+        }
     }
 
     companion object {
-        fun create(matrixItem: MatrixItem, listener: InteractionListener?): MatrixToBottomSheet {
-            return MatrixToBottomSheet(matrixItem).apply {
+        fun withLink(matrixToLink: String, listener: InteractionListener?): MatrixToBottomSheet {
+            return MatrixToBottomSheet().apply {
+                arguments = Bundle().apply {
+                    putParcelable(MvRx.KEY_ARG, MatrixToBottomSheet.MatrixToArgs(
+                            matrixToLink = matrixToLink
+                    ))
+                }
                 interactionListener = listener
             }
         }

@@ 0,0 1,33 @@
+/*
+ * Copyright (c) 2020 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.app.features.matrixto
+
+import com.airbnb.mvrx.Async
+import com.airbnb.mvrx.MvRxState
+import com.airbnb.mvrx.Uninitialized
+import org.matrix.android.sdk.api.util.MatrixItem
+
+data class MatrixToBottomSheetState(
+        val deepLink: String,
+        val matrixItem: Async<MatrixItem> = Uninitialized,
+        val startChattingState: Async<Unit> = Uninitialized
+) : MvRxState {
+
+    constructor(args: MatrixToBottomSheet.MatrixToArgs) : this(
+            deepLink = args.matrixToLink
+    )
+}

@@ 0,0 1,166 @@
+/*
+ * Copyright (c) 2020 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.app.features.matrixto
+
+import androidx.lifecycle.viewModelScope
+import com.airbnb.mvrx.Fail
+import com.airbnb.mvrx.FragmentViewModelContext
+import com.airbnb.mvrx.Loading
+import com.airbnb.mvrx.MvRxViewModelFactory
+import com.airbnb.mvrx.Success
+import com.airbnb.mvrx.Uninitialized
+import com.airbnb.mvrx.ViewModelContext
+import com.squareup.inject.assisted.Assisted
+import com.squareup.inject.assisted.AssistedInject
+import im.vector.app.R
+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.raw.wellknown.getElementWellknown
+import im.vector.app.features.raw.wellknown.isE2EByDefault
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import org.matrix.android.sdk.api.extensions.tryOrNull
+import org.matrix.android.sdk.api.raw.RawService
+import org.matrix.android.sdk.api.session.Session
+import org.matrix.android.sdk.api.session.permalinks.PermalinkData
+import org.matrix.android.sdk.api.session.permalinks.PermalinkParser
+import org.matrix.android.sdk.api.session.room.model.create.CreateRoomParams
+import org.matrix.android.sdk.api.session.user.model.User
+import org.matrix.android.sdk.api.util.toMatrixItem
+import org.matrix.android.sdk.internal.util.awaitCallback
+
+class MatrixToBottomSheetViewModel @AssistedInject constructor(
+        @Assisted initialState: MatrixToBottomSheetState,
+        private val session: Session,
+        private val stringProvider: StringProvider,
+        private val rawService: RawService) : VectorViewModel<MatrixToBottomSheetState, MatrixToAction, MatrixToViewEvents>(initialState) {
+
+    @AssistedInject.Factory
+    interface Factory {
+        fun create(initialState: MatrixToBottomSheetState): MatrixToBottomSheetViewModel
+    }
+
+    init {
+        setState {
+            copy(matrixItem = Loading())
+        }
+        viewModelScope.launch(Dispatchers.IO) {
+            resolveLink(initialState)
+        }
+    }
+
+    private suspend fun resolveLink(initialState: MatrixToBottomSheetState) {
+        val permalinkData = PermalinkParser.parse(initialState.deepLink)
+        if (permalinkData is PermalinkData.FallbackLink) {
+            setState {
+                copy(
+                        matrixItem = Fail(IllegalArgumentException(stringProvider.getString(R.string.permalink_malformed))),
+                        startChattingState = Uninitialized
+                )
+            }
+            return
+        }
+
+        when (permalinkData) {
+            is PermalinkData.UserLink -> {
+                val user = resolveUser(permalinkData.userId)
+                setState {
+                    copy(
+                            matrixItem = Success(user.toMatrixItem()),
+                            startChattingState = Success(Unit)
+                    )
+                }
+            }
+            is PermalinkData.RoomLink -> {
+                // not yet supported
+                _viewEvents.post(MatrixToViewEvents.Dismiss)
+            }
+            is PermalinkData.GroupLink -> {
+                // not yet supported
+                _viewEvents.post(MatrixToViewEvents.Dismiss)
+            }
+            is PermalinkData.FallbackLink -> {
+                _viewEvents.post(MatrixToViewEvents.Dismiss)
+            }
+        }
+    }
+
+    private suspend fun resolveUser(userId: String): User {
+        return tryOrNull {
+            awaitCallback<User> {
+                session.resolveUser(userId, it)
+            }
+        }
+        // Create raw user in case the user is not searchable
+                ?: User(userId, null, null)
+    }
+
+    companion object : MvRxViewModelFactory<MatrixToBottomSheetViewModel, MatrixToBottomSheetState> {
+        override fun create(viewModelContext: ViewModelContext, state: MatrixToBottomSheetState): MatrixToBottomSheetViewModel? {
+            val fragment: MatrixToBottomSheet = (viewModelContext as FragmentViewModelContext).fragment()
+
+            return fragment.matrixToBottomSheetViewModelFactory.create(state)
+        }
+    }
+
+    override fun handle(action: MatrixToAction) {
+        when (action) {
+            is MatrixToAction.StartChattingWithUser -> handleStartChatting(action)
+        }.exhaustive
+    }
+
+    private fun handleStartChatting(action: MatrixToAction.StartChattingWithUser) {
+        val mxId = action.matrixItem.id
+        val existing = session.getExistingDirectRoomWithUser(mxId)
+        if (existing != null) {
+            // navigate to this room
+            _viewEvents.post(MatrixToViewEvents.NavigateToRoom(existing))
+        } else {
+            setState {
+                copy(startChattingState = Loading())
+            }
+            // we should create the room then navigate
+            viewModelScope.launch(Dispatchers.IO) {
+                val adminE2EByDefault = rawService.getElementWellknown(session.myUserId)
+                        ?.isE2EByDefault()
+                        ?: true
+
+                val roomParams = CreateRoomParams()
+                        .apply {
+                            invitedUserIds.add(mxId)
+                            setDirectMessage()
+                            enableEncryptionIfInvitedUsersSupportIt = adminE2EByDefault
+                        }
+
+                val roomId = try {
+                    awaitCallback<String> { session.createRoom(roomParams, it) }
+                } catch (failure: Throwable) {
+                    setState {
+                        copy(startChattingState = Fail(Exception(stringProvider.getString(R.string.invite_users_to_room_failure))))
+                    }
+                    return@launch
+                }
+                setState {
+                    // we can hide this button has we will navigate out
+                    copy(startChattingState = Uninitialized)
+                }
+                _viewEvents.post(MatrixToViewEvents.NavigateToRoom(roomId))
+            }
+        }
+    }
+}

@@ 0,0 1,24 @@
+/*
+ * Copyright (c) 2020 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.app.features.matrixto
+
+import im.vector.app.core.platform.VectorViewEvents
+
+sealed class MatrixToViewEvents : VectorViewEvents {
+    data class NavigateToRoom(val roomId: String) : MatrixToViewEvents()
+    object Dismiss : MatrixToViewEvents()
+}

@@ 63,13 63,14 @@ class PermalinkHandler @Inject constructor(private val activeSessionHolder: Acti
                 .subscribeOn(Schedulers.computation())
                 .observeOn(AndroidSchedulers.mainThread())
                 .flatMap { permalinkData ->
-                    handlePermalink(permalinkData, context, navigationInterceptor, buildTask)
+                    handlePermalink(permalinkData, deepLink, context, navigationInterceptor, buildTask)
                 }
                 .onErrorReturnItem(false)
     }
 
     private fun handlePermalink(
             permalinkData: PermalinkData,
+            rawLink: Uri,
             context: Context,
             navigationInterceptor: NavigationInterceptor?,
             buildTask: Boolean


@@ 96,7 97,7 @@ class PermalinkHandler @Inject constructor(private val activeSessionHolder: Acti
                 Single.just(true)
             }
             is PermalinkData.UserLink     -> {
-                if (navigationInterceptor?.navToMemberProfile(permalinkData.userId) != true) {
+                if (navigationInterceptor?.navToMemberProfile(permalinkData.userId, rawLink) != true) {
                     navigator.openRoomMemberProfile(userId = permalinkData.userId, roomId = null, context = context, buildTask = buildTask)
                 }
                 Single.just(true)


@@ 175,7 176,7 @@ interface NavigationInterceptor {
     /**
      * Return true if the navigation has been intercepted
      */
-    fun navToMemberProfile(userId: String): Boolean {
+    fun navToMemberProfile(userId: String, deepLink: Uri): Boolean {
         return false
     }
 }

@@ 23,11 23,9 @@ import im.vector.app.core.di.ActiveSessionHolder
 import im.vector.app.core.di.ScreenComponent
 import im.vector.app.core.extensions.replaceFragment
 import im.vector.app.core.platform.VectorBaseActivity
-import im.vector.app.core.utils.toast
+import im.vector.app.features.home.HomeActivity
 import im.vector.app.features.home.LoadingFragment
 import im.vector.app.features.login.LoginActivity
-import io.reactivex.android.schedulers.AndroidSchedulers
-import java.util.concurrent.TimeUnit
 import javax.inject.Inject
 
 class PermalinkHandlerActivity : VectorBaseActivity() {


@@ 45,23 43,28 @@ class PermalinkHandlerActivity : VectorBaseActivity() {
         if (isFirstCreation()) {
             replaceFragment(R.id.simpleFragmentContainer, LoadingFragment::class.java)
         }
+        handleIntent()
+    }
+
+    private fun handleIntent() {
         // If we are not logged in, open login screen.
         // In the future, we might want to relaunch the process after login.
         if (!sessionHolder.hasActiveSession()) {
             startLoginActivity()
             return
         }
-        val uri = intent.dataString
-        permalinkHandler.launch(this, uri, buildTask = true)
-                .delay(500, TimeUnit.MILLISECONDS)
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe { isHandled ->
-                    if (!isHandled) {
-                        toast(R.string.permalink_malformed)
-                    }
-                    finish()
-                }
-                .disposeOnDestroy()
+        // We forward intent to HomeActivity (singleTask) to avoid the dueling app problem
+        // https://stackoverflow.com/questions/25884954/deep-linking-and-multiple-app-instances
+        intent.setClass(this, HomeActivity::class.java)
+        intent.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
+        startActivity(intent)
+
+        finish()
+    }
+
+    override fun onNewIntent(intent: Intent?) {
+        super.onNewIntent(intent)
+        handleIntent()
     }
 
     private fun startLoginActivity() {

@@ 36,7 36,6 @@ import im.vector.app.core.utils.onPermissionDeniedSnackbar
 import im.vector.app.features.matrixto.MatrixToBottomSheet
 import kotlinx.android.parcel.Parcelize
 import kotlinx.android.synthetic.main.activity_simple.*
-import org.matrix.android.sdk.api.util.MatrixItem
 import javax.inject.Inject
 import kotlin.reflect.KClass
 


@@ 72,7 71,7 @@ class UserCodeActivity
                 UserCodeState.Mode.SCAN      -> showFragment(ScanUserCodeFragment::class, Bundle.EMPTY)
                 is UserCodeState.Mode.RESULT -> {
                     showFragment(ShowUserCodeFragment::class, Bundle.EMPTY)
-                    MatrixToBottomSheet.create(mode.matrixItem, this).show(supportFragmentManager, "MatrixToBottomSheet")
+                    MatrixToBottomSheet.withLink(mode.rawLink, this).show(supportFragmentManager, "MatrixToBottomSheet")
                 }
             }
         }


@@ 104,8 103,8 @@ class UserCodeActivity
         }
     }
 
-    override fun didTapStartMessage(matrixItem: MatrixItem) {
-        sharedViewModel.handle(UserCodeActions.StartChattingWithUser(matrixItem))
+    override fun navigateToRoom(roomId: String) {
+        navigator.openRoom(this, roomId)
     }
 
     override fun onBackPressed() = withState(sharedViewModel) {

@@ 30,6 30,7 @@ import im.vector.app.features.raw.wellknown.getElementWellknown
 import im.vector.app.features.raw.wellknown.isE2EByDefault
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
+import org.matrix.android.sdk.api.extensions.tryOrNull
 import org.matrix.android.sdk.api.raw.RawService
 import org.matrix.android.sdk.api.session.Session
 import org.matrix.android.sdk.api.session.permalinks.PermalinkData


@@ 72,12 73,12 @@ class UserCodeSharedViewModel @AssistedInject constructor(
 
     override fun handle(action: UserCodeActions) {
         when (action) {
-            UserCodeActions.DismissAction              -> _viewEvents.post(UserCodeShareViewEvents.Dismiss)
-            is UserCodeActions.SwitchMode              -> setState { copy(mode = action.mode) }
-            is UserCodeActions.DecodedQRCode           -> handleQrCodeDecoded(action)
-            is UserCodeActions.StartChattingWithUser   -> handleStartChatting(action)
+            UserCodeActions.DismissAction -> _viewEvents.post(UserCodeShareViewEvents.Dismiss)
+            is UserCodeActions.SwitchMode -> setState { copy(mode = action.mode) }
+            is UserCodeActions.DecodedQRCode -> handleQrCodeDecoded(action)
+            is UserCodeActions.StartChattingWithUser -> handleStartChatting(action)
             UserCodeActions.CameraPermissionNotGranted -> _viewEvents.post(UserCodeShareViewEvents.CameraPermissionNotGranted)
-            UserCodeActions.ShareByText                -> handleShareByText()
+            UserCodeActions.ShareByText -> handleShareByText()
         }
     }
 


@@ 139,22 140,33 @@ class UserCodeSharedViewModel @AssistedInject constructor(
         _viewEvents.post(UserCodeShareViewEvents.ShowWaitingScreen)
         viewModelScope.launch(Dispatchers.IO) {
             when (linkedId) {
-                is PermalinkData.RoomLink     -> TODO()
-                is PermalinkData.UserLink     -> {
-                    val user = session.getUser(linkedId.userId) ?: awaitCallback<List<User>> {
-                        session.searchUsersDirectory(linkedId.userId, 10, emptySet(), it)
-                    }.firstOrNull { it.userId == linkedId.userId }
+                is PermalinkData.RoomLink -> {
+                    // not yet supported
+                    _viewEvents.post(UserCodeShareViewEvents.ToastMessage(stringProvider.getString(R.string.not_implemented)))
+                }
+                is PermalinkData.UserLink -> {
+                    val user = tryOrNull {
+                        awaitCallback<User> {
+                            session.resolveUser(linkedId.userId, it)
+                        }
+                    }
                     // Create raw Uxid in case the user is not searchable
-                    ?: User(linkedId.userId, null, null)
+                            ?: User(linkedId.userId, null, null)
 
                     setState {
                         copy(
-                                mode = UserCodeState.Mode.RESULT(user.toMatrixItem())
+                                mode = UserCodeState.Mode.RESULT(user.toMatrixItem(), action.code)
                         )
                     }
                 }
-                is PermalinkData.GroupLink    -> TODO()
-                is PermalinkData.FallbackLink -> TODO()
+                is PermalinkData.GroupLink -> {
+                    // not yet supported
+                    _viewEvents.post(UserCodeShareViewEvents.ToastMessage(stringProvider.getString(R.string.not_implemented)))
+                }
+                is PermalinkData.FallbackLink -> {
+                    // not yet supported
+                    _viewEvents.post(UserCodeShareViewEvents.ToastMessage(stringProvider.getString(R.string.not_implemented)))
+                }
             }
             _viewEvents.post(UserCodeShareViewEvents.HideWaitingScreen)
         }

@@ 28,7 28,7 @@ data class UserCodeState(
     sealed class Mode {
         object SHOW : Mode()
         object SCAN : Mode()
-        data class RESULT(val matrixItem: MatrixItem) : Mode()
+        data class RESULT(val matrixItem: MatrixItem, val rawLink: String) : Mode()
     }
 
     constructor(args: UserCodeActivity.Args) : this(

@@ 3,13 3,24 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="wrap_content">
+    android:layout_height="wrap_content"
+    android:minHeight="200dp">
+
+    <ProgressBar
+        android:id="@+id/matrixToCardContentLoading"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:visibility="gone"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:visibility="visible" />
 
     <ImageView
         android:id="@+id/matrixToCardAvatar"
         android:layout_width="60dp"
         android:layout_height="60dp"
-        android:layout_marginStart="@dimen/layout_horizontal_margin"
         android:layout_marginTop="@dimen/layout_vertical_margin_big"
         android:elevation="4dp"
         android:transitionName="profile"


@@ 63,4 74,23 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/matrixToCardUserIdText" />
 
+    <ProgressBar
+        android:id="@+id/matrixToCardButtonLoading"
+        style="?android:attr/progressBarStyleSmall"
+        android:layout_width="20dp"
+        android:layout_height="20dp"
+        android:visibility="gone"
+        app:layout_constraintBottom_toBottomOf="@id/matrixToCardSendMessageButton"
+        app:layout_constraintEnd_toEndOf="@id/matrixToCardSendMessageButton"
+        app:layout_constraintStart_toStartOf="@id/matrixToCardSendMessageButton"
+        app:layout_constraintTop_toTopOf="@id/matrixToCardSendMessageButton"
+        tools:visibility="visible" />
+
+    <androidx.constraintlayout.widget.Group
+        android:id="@+id/matrixToCardUserContentVisibility"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:constraint_referenced_ids="matrixToCardAvatar,matrixToCardNameText,matrixToCardUserIdText"
+        tools:visibility="visible" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>