Add to backstack when navigating from permalink in room details

app/src/main/java/im/vector/riotredesign/features/home/HomeModule.kt

@@ -35,5 +35,9 @@ class HomeModule(private val homeActivity: HomeActivity) {
             SelectedGroupHolder()
         }
 
+        single {
+            HomePermalinkHandler(get())
+        }
+
     }
 }

app/src/main/java/im/vector/riotredesign/features/home/HomeNavigator.kt

@@ -1,7 +1,9 @@
 package im.vector.riotredesign.features.home
 
+import android.support.v4.app.FragmentManager
 import android.view.Gravity
 import im.vector.riotredesign.R
+import im.vector.riotredesign.core.extensions.addFragmentToBackstack
 import im.vector.riotredesign.core.extensions.replaceFragment
 import im.vector.riotredesign.features.home.room.detail.RoomDetailArgs
 import im.vector.riotredesign.features.home.room.detail.RoomDetailFragment
@@ -14,8 +16,11 @@ class HomeNavigator {
 
     private var currentRoomId: String? = null
 
-    fun openRoomDetail(roomId: String, eventId: String?) {
-        if (isRoomOpened(roomId)) {
+    fun openRoomDetail(roomId: String,
+                       eventId: String?,
+                       addToBackstack: Boolean = false) {
+        Timber.v("Open room detail $roomId - $eventId - $addToBackstack")
+        if (!addToBackstack && isRoomOpened(roomId)) {
             return
         }
         currentRoomId = roomId
@@ -23,7 +28,12 @@ class HomeNavigator {
             val args = RoomDetailArgs(roomId, eventId)
             val roomDetailFragment = RoomDetailFragment.newInstance(args)
             it.drawerLayout?.closeDrawer(Gravity.LEFT)
-            it.replaceFragment(roomDetailFragment, R.id.homeDetailFragmentContainer)
+            if (addToBackstack) {
+                it.addFragmentToBackstack(roomDetailFragment, R.id.homeDetailFragmentContainer, roomId)
+            } else {
+                clearBackStack(it.supportFragmentManager)
+                it.replaceFragment(roomDetailFragment, R.id.homeDetailFragmentContainer)
+            }
         }
     }
 
@@ -39,4 +49,11 @@ class HomeNavigator {
         return currentRoomId == roomId
     }
 
+    private fun clearBackStack(fragmentManager: FragmentManager) {
+        if (fragmentManager.backStackEntryCount > 0) {
+            val first = fragmentManager.getBackStackEntryAt(0)
+            fragmentManager.popBackStack(first.id, FragmentManager.POP_BACK_STACK_INCLUSIVE)
+        }
+    }
+
 }

app/src/main/java/im/vector/riotredesign/features/home/room/detail/RoomDetailFragment.kt

@@ -8,17 +8,18 @@ import android.view.View
 import android.view.ViewGroup
 import com.airbnb.mvrx.args
 import com.airbnb.mvrx.fragmentViewModel
-import im.vector.matrix.android.api.permalinks.PermalinkParser
 import im.vector.matrix.android.api.session.room.model.RoomSummary
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.platform.RiotFragment
 import im.vector.riotredesign.core.platform.ToolbarConfigurable
 import im.vector.riotredesign.features.home.AvatarRenderer
+import im.vector.riotredesign.features.home.HomePermalinkHandler
 import im.vector.riotredesign.features.home.room.detail.timeline.TimelineEventController
 import kotlinx.android.parcel.Parcelize
 import kotlinx.android.synthetic.main.fragment_room_detail.*
 import org.koin.android.ext.android.inject
 import org.koin.core.parameter.parametersOf
+import timber.log.Timber
 
 @Parcelize
 data class RoomDetailArgs(
@@ -41,6 +42,7 @@ class RoomDetailFragment : RiotFragment(), TimelineEventController.Callback {
     private val roomDetailArgs: RoomDetailArgs by args()
 
     private val timelineEventController by inject<TimelineEventController> { parametersOf(roomDetailArgs.roomId) }
+    private val homePermalinkHandler by inject<HomePermalinkHandler>()
     private lateinit var scrollOnNewMessageCallback: ScrollOnNewMessageCallback
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
@@ -70,16 +72,18 @@ class RoomDetailFragment : RiotFragment(), TimelineEventController.Callback {
 
     private fun setupRecyclerView() {
         val layoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, true)
-        scrollOnNewMessageCallback = ScrollOnNewMessageCallback(layoutManager)
+        //scrollOnNewMessageCallback = ScrollOnNewMessageCallback(layoutManager)
         recyclerView.layoutManager = layoutManager
-        timelineEventController.addModelBuildListener { it.dispatchTo(scrollOnNewMessageCallback) }
+        //timelineEventController.addModelBuildListener { it.dispatchTo(scrollOnNewMessageCallback) }
         recyclerView.setController(timelineEventController)
         timelineEventController.callback = this
     }
 
     private fun renderState(state: RoomDetailViewState) {
-        if (state.asyncTimeline.complete) {
-            renderTimeline(state.asyncTimeline())
+        Timber.v("Render state")
+        val timeline = state.asyncTimeline()
+        if (timeline != null) {
+            renderTimeline(timeline)
         }
         renderRoomSummary(state.asyncRoomSummary())
     }
@@ -98,15 +102,14 @@ class RoomDetailFragment : RiotFragment(), TimelineEventController.Callback {
     }
 
     private fun renderTimeline(timeline: Timeline?) {
-        scrollOnNewMessageCallback.hasBeenUpdated.set(true)
+        //scrollOnNewMessageCallback.hasBeenUpdated.set(true)
         timelineEventController.timeline = timeline
     }
 
     // TimelineEventController.Callback ************************************************************
 
     override fun onUrlClicked(url: String) {
-        val permalinkData = PermalinkParser.parse(url)
-
+        homePermalinkHandler.launch(url)
     }
 
 }

app/src/main/java/im/vector/riotredesign/features/home/room/detail/timeline/MessageItem.kt

@@ -1,10 +1,11 @@
 package im.vector.riotredesign.features.home.room.detail.timeline
 
+import android.text.util.Linkify
 import android.view.View
 import android.widget.ImageView
 import android.widget.TextView
-import im.vector.matrix.android.api.permalinks.MatrixPermalinkSpan
 import im.vector.matrix.android.api.permalinks.MatrixLinkify
+import im.vector.matrix.android.api.permalinks.MatrixPermalinkSpan
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.epoxy.KotlinModel
 import im.vector.riotredesign.features.home.AvatarRenderer
@@ -30,6 +31,7 @@ data class MessageItem(
                 onUrlClickedListener?.invoke(url)
             }
         })
+        Linkify.addLinks(messageView, Linkify.ALL)
         if (showInformation) {
             avatarImageView.visibility = View.VISIBLE
             memberNameView.visibility = View.VISIBLE