Improvise search in open conversations

app/src/main/java/com/nextcloud/talk/api/NcApi.java

@@ -494,7 +494,8 @@ Observable<GenericOverall> setChatReadMarker(@Header("Authorization") String aut
     Server URL is: baseUrl + ocsApiVersion + spreedApiVersion + /listed-room
     */
     @GET
-    Observable<RoomsOverall> getOpenConversations(@Header("Authorization") String authorization, @Url String url);
+    Observable<RoomsOverall> getOpenConversations(@Header("Authorization") String authorization, @Url String url,
+                                                  @Query("searchTerm") String searchTerm);
 
     @GET
     Observable<StatusOverall> status(@Header("Authorization") String authorization, @Url String url);

app/src/main/java/com/nextcloud/talk/openconversations/ListOpenConversationsActivity.kt

@@ -25,6 +25,7 @@ import com.nextcloud.talk.models.json.conversations.Conversation
 import com.nextcloud.talk.openconversations.adapters.OpenConversationsAdapter
 import com.nextcloud.talk.openconversations.viewmodels.OpenConversationsViewModel
 import com.nextcloud.talk.utils.bundle.BundleKeys
+import com.vanniktech.ui.hideKeyboardAndFocus
 import com.vanniktech.ui.showKeyboardAndFocus
 import javax.inject.Inject
 
@@ -69,9 +70,11 @@ class ListOpenConversationsActivity : BaseActivity() {
             handleSearchUI(searching)
         }
         binding.editText.doOnTextChanged { text, _, _, count ->
-            adapter.filter(text.toString())
+            if (!text.isNullOrBlank()) {
+                openConversationsViewModel.updateSearchTerm(text.toString())
+                openConversationsViewModel.fetchConversations()
+            }
         }
-
         initObservers()
     }
 
@@ -83,6 +86,7 @@ class ListOpenConversationsActivity : BaseActivity() {
         } else {
             binding.searchOpenConversations.visibility = View.VISIBLE
             binding.textInputLayout.visibility = View.GONE
+            binding.editText.hideKeyboardAndFocus()
         }
     }
 

app/src/main/java/com/nextcloud/talk/openconversations/adapters/OpenConversationsAdapter.kt

@@ -26,8 +26,6 @@ class OpenConversationsAdapter(
     private val onClick: (Conversation) -> Unit
 ) :
     ListAdapter<Conversation, OpenConversationsAdapter.OpenConversationsViewHolder>(ConversationsCallback) {
-    private var originalList: List<Conversation> = emptyList()
-    private var isFiltering = false
 
     inner class OpenConversationsViewHolder(val itemBinding: RvItemOpenConversationBinding) :
         RecyclerView.ViewHolder(itemBinding.root) {
@@ -78,33 +76,6 @@ class OpenConversationsAdapter(
         val conversation = getItem(position)
         holder.bindItem(conversation)
     }
-
-    fun filter(text: String) {
-        if (text == "") {
-            submitList(originalList)
-            isFiltering = false
-            return
-        }
-
-        isFiltering = true
-        val newList = mutableListOf<Conversation>()
-        for (conversation in originalList) {
-            if (conversation.displayName.contains(text, true) || conversation.description!!.contains(text, true)) {
-                newList.add(conversation)
-            }
-        }
-
-        if (newList.isNotEmpty()) {
-            submitList(newList)
-        }
-    }
-
-    override fun onCurrentListChanged(previousList: MutableList<Conversation>, currentList: MutableList<Conversation>) {
-        if (!isFiltering) {
-            originalList = currentList
-        }
-        super.onCurrentListChanged(previousList, currentList)
-    }
 }
 
 object ConversationsCallback : DiffUtil.ItemCallback<Conversation>() {

app/src/main/java/com/nextcloud/talk/openconversations/data/OpenConversationsRepository.kt

@@ -11,5 +11,5 @@ import io.reactivex.Observable
 
 interface OpenConversationsRepository {
 
-    fun fetchConversations(): Observable<List<Conversation>>
+    fun fetchConversations(searchTerm: String): Observable<List<Conversation>>
 }

app/src/main/java/com/nextcloud/talk/openconversations/data/OpenConversationsRepositoryImpl.kt

@@ -21,10 +21,11 @@ class OpenConversationsRepositoryImpl(private val ncApi: NcApi, currentUserProvi
 
     val apiVersion = ApiUtils.getConversationApiVersion(currentUser, intArrayOf(ApiUtils.API_V4, ApiUtils.API_V3, 1))
 
-    override fun fetchConversations(): Observable<List<Conversation>> {
+    override fun fetchConversations(searchTerm: String): Observable<List<Conversation>> {
         val roomOverall = ncApi.getOpenConversations(
             credentials,
-            ApiUtils.getUrlForOpenConversations(apiVersion, currentUser.baseUrl!!)
+            ApiUtils.getUrlForOpenConversations(apiVersion, currentUser.baseUrl!!),
+            searchTerm
         )
         return roomOverall.map { it.ocs?.data!! }
     }

app/src/main/java/com/nextcloud/talk/openconversations/viewmodels/OpenConversationsViewModel.kt

@@ -32,14 +32,22 @@ class OpenConversationsViewModel @Inject constructor(private val repository: Ope
     val viewState: LiveData<ViewState>
         get() = _viewState
 
+    private val _searchTerm: MutableLiveData<String> = MutableLiveData("")
+    val searchTerm: LiveData<String>
+        get() = _searchTerm
+
     fun fetchConversations() {
         _viewState.value = FetchConversationsStartState
-        repository.fetchConversations()
+        repository.fetchConversations(_searchTerm.value ?: "")
             .subscribeOn(Schedulers.io())
             ?.observeOn(AndroidSchedulers.mainThread())
             ?.subscribe(FetchConversationsObserver())
     }
 
+    fun updateSearchTerm(newTerm: String) {
+        _searchTerm.value = newTerm
+    }
+
     inner class FetchConversationsObserver : Observer<List<Conversation>> {
         override fun onSubscribe(d: Disposable) {
             // unused atm

app/src/main/res/layout/activity_open_conversations.xml

@@ -57,6 +57,7 @@
                     android:layout_height="wrap_content"
                     android:hint="@string/nc_search"
                     android:textColorHint="@color/low_emphasis_text"
+                    android:singleLine="true"
                     android:textColor = "@color/high_emphasis_text"/>
             </com.google.android.material.textfield.TextInputLayout>
         </com.google.android.material.appbar.MaterialToolbar>