Selection is only shown and tagFragment is added if not in edit mode

.idea/misc.xml

@@ -35,7 +35,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/src/main/java/com/paktalin/vocabularynotebook/ui/activities/MainActivity.kt

@@ -12,6 +12,8 @@ import androidx.appcompat.widget.SearchView
 import androidx.recyclerview.selection.Selection
 import com.paktalin.vocabularynotebook.R
 import com.paktalin.vocabularynotebook.ui.fragments.SubmitAddedFragment
+import com.paktalin.vocabularynotebook.ui.fragments.SubmitFragment
+import com.paktalin.vocabularynotebook.ui.fragments.TagFragment
 import com.paktalin.vocabularynotebook.ui.recycler_view.VocabularyAdapter
 import com.paktalin.vocabularynotebook.ui.recycler_view.selection_tracker.MySelectionTracker
 import com.paktalin.vocabularynotebook.ui.views.LockableLayoutManager
@@ -26,6 +28,7 @@ class MainActivity : AppCompatActivity() {
 
     var searchView: SearchView? = null
     lateinit var vocabularyAdapter: VocabularyAdapter
+    private var tagFragment = TagFragment()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -132,13 +135,14 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun whenSelectionChanges(selection: Selection<Long>) {
-        if (!selection.isEmpty) {
+
+        if (!selection.isEmpty && SubmitFragment.zeroInstances()) {
             vocabularyAdapter.showPopupMenu = false
-            Log.d(TAG, "selection ${selection.toList()}")
-            addTagFragment(supportFragmentManager, R.id.main_activity_container)
-        } else {
+            tagFragment.setSelection(selection.toList())
+            addFragment(supportFragmentManager, tagFragment, R.id.main_activity_container)
+        } else if (selection.isEmpty) {
             vocabularyAdapter.showPopupMenu = true
-            removeTagFragment(supportFragmentManager)
+            removeFragment(supportFragmentManager, tagFragment)
         }
     }
 

app/src/main/java/com/paktalin/vocabularynotebook/ui/fragments/SubmitFragment.kt

@@ -46,6 +46,10 @@ abstract class SubmitFragment : Fragment() {
 
     companion object {
         private val TAG = "VN/" + SubmitFragment::class.java.simpleName
-        var instances: Int = 0
+        private var instances: Int = 0
+
+        fun zeroInstances(): Boolean {
+            return instances == 0
+        }
     }
 }
\ No newline at end of file

app/src/main/java/com/paktalin/vocabularynotebook/ui/fragments/TagFragment.kt

@@ -7,6 +7,7 @@ import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import com.paktalin.vocabularynotebook.R
 import com.paktalin.vocabularynotebook.ui.activities.MainActivity
+import com.paktalin.vocabularynotebook.utils.Log
 import com.paktalin.vocabularynotebook.utils.removeTagFragment
 import com.paktalin.vocabularynotebook.utils.shortToast
 import kotlinx.android.synthetic.main.fragment_tag.*
@@ -25,6 +26,11 @@ class TagFragment : Fragment() {
         btnCancelTag.setOnClickListener { cancel() }
     }
 
+    fun setSelection(selectionList: List<Long>) {
+        Log.d(TAG, "selection $selectionList")
+
+    }
+
     private fun submit() {
         tag_et.text.toString().let {
             if (it.isBlank())

app/src/main/java/com/paktalin/vocabularynotebook/ui/recycler_view/VocabularyAdapter.kt

@@ -54,7 +54,8 @@ class VocabularyAdapter(private val vocabulary: VocabSet, private val mainActivi
     override fun onBindViewHolder(viewHolder: ViewHolder, position: Int) {
         val wordItem = vocabulary.displayedAt(position)
         selectionTracker.let {
-            viewHolder.bind(wordItem, position, it.selected(position.toLong())) { view, p -> showPopupMenu(view, p) }
+            viewHolder.bind(wordItem, position, it.selected(position.toLong()) && showPopupMenu)
+            { view, p -> showPopupMenu(view, p) }
         }
         this.viewHolder = viewHolder
         //todo set click listener to menu
@@ -129,7 +130,6 @@ class VocabularyAdapter(private val vocabulary: VocabSet, private val mainActivi
     }
 
     fun addTagToSelected(tag: String) {
-
     }
 
     companion object {

app/src/main/java/com/paktalin/vocabularynotebook/utils/ActivityUtil.kt

@@ -38,7 +38,7 @@ fun addTagFragment(fragmentManager: FragmentManager, containerId: Int) {
 }
 
 fun addSubmitFragment(fragmentManager: FragmentManager, fragment: SubmitFragment, containerId: Int) {
-    if (SubmitFragment.instances == 0) addFragment(fragmentManager, fragment, containerId)
+    if (SubmitFragment.zeroInstances()) addFragment(fragmentManager, fragment, containerId)
 }
 
 fun removeTagFragment(fragmentManager: FragmentManager) {