added submit and cancel functionality to TagFragment

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

@@ -32,7 +32,7 @@ class AddWordFragment : WordFragment() {
             translationEmpty = translation.text.isEmpty() })
     }
 
-    override fun cancelEditing() {
+    override fun cancel() {
         clearFields()
         gone(mainActivity.btnSubmitLayout)
         mainActivity.hideKeyboardNotFromActivity(mainActivity)

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

@@ -20,7 +20,7 @@ class EditWordFragment : WordFragment() {
     private lateinit var wordPojo: WordPojo
     private var container: ViewGroup? = null
 
-    override fun cancelEditing() {
+    override fun cancel() {
         stop()
         showPreviousViews()
     }
@@ -73,7 +73,7 @@ class EditWordFragment : WordFragment() {
 
     private fun stop() {
         // set onClickListener from AddWordFragment
-        mainActivity.btnSubmitWord.setOnClickListener { (mainActivity.fragmentAddWord as AddWordFragment).submitWord() }
+        mainActivity.btnSubmitWord.setOnClickListener { (mainActivity.fragmentAddWord as AddWordFragment).submit() }
         removeFragment(mainActivity.supportFragmentManager, this)
         mainActivity.hideKeyboardNotFromActivity(mainActivity)
         gone(mainActivity.btnSubmitLayout)

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

@@ -6,10 +6,41 @@ import android.view.View
 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.removeTagFragment
+import com.paktalin.vocabularynotebook.utils.shortToast
+import kotlinx.android.synthetic.main.fragment_tag.*
 
 class TagFragment : Fragment() {
+    private lateinit var mainActivity: MainActivity
+
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         return inflater.inflate(R.layout.fragment_tag, container, false)
     }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        mainActivity = activity as MainActivity
+        btnSubmitTag.setOnClickListener { submit() }
+        btnCancelTag.setOnClickListener { cancel() }
+    }
+
+    private fun submit() {
+        tag_et.text.toString().let {
+            if (it.isBlank())
+                shortToast(mainActivity, mainActivity.getString(R.string.toast_tag_cannot_be_empty))
+            else
+                mainActivity.vocabularyAdapter.addTagToSelected(it)
+        }
+    }
+
+    private fun cancel() {
+        mainActivity.vocabularyAdapter.selectionTracker.clearSelection()
+        removeTagFragment(mainActivity.supportFragmentManager)
+    }
+
+    companion object {
+        private val TAG = "VN/" + TagFragment::class.simpleName
+    }
 }
\ No newline at end of file

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

@@ -21,13 +21,13 @@ abstract class WordFragment : Fragment() {
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
         mainActivity = activity as MainActivity
-        mainActivity.btnSubmitWord.setOnClickListener { submitWord() }
-        mainActivity.btnCancelWord.setOnClickListener { cancelEditing() }
+        mainActivity.btnSubmitWord.setOnClickListener { submit() }
+        mainActivity.btnCancelWord.setOnClickListener { cancel() }
 
         btnClear.setOnClickListener { clearFields() }
     }
 
-    fun submitWord() {
+    fun submit() {
         gone(mainActivity.btnSubmitLayout)
         save(word.text.toString(), translation.text.toString())
         return
@@ -38,6 +38,6 @@ abstract class WordFragment : Fragment() {
         translation.text.clear()
     }
 
-    protected abstract fun cancelEditing()
+    protected abstract fun cancel()
     protected abstract fun save(word:String, translation:String)
 }
\ No newline at end of file

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

@@ -132,6 +132,10 @@ class VocabularyAdapter(private val vocabulary: VocabSet, private val mainActivi
         return vocabulary.getModified()
     }
 
+    fun addTagToSelected(tag: String) {
+
+    }
+
     companion object {
         private val TAG = "VN/" + VocabularyAdapter::class.java.simpleName
     }

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

@@ -37,6 +37,10 @@ class MySelectionTracker {
         return false
     }
 
+    fun clearSelection() {
+        tracker?.clearSelection()
+    }
+
     companion object {
         private val TAG = "VN/" + MySelectionTracker::class.simpleName
     }

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

@@ -15,12 +15,11 @@ import org.apache.commons.lang3.StringUtils
 val progressFragment = ProgressFragment()
 val tagFragment = TagFragment()
 
-fun addFragment(fragmentManager: FragmentManager, fragment: Fragment, containerId: Int, arguments: Bundle? = null, tag: String? = null) {
-    fragment.arguments = arguments
-    // remove progressFragment if it exists
-    if(fragmentManager.findFragmentById(fragment.id) != null)
-        removeFragment(fragmentManager, fragment)
-    fragmentManager.beginTransaction().add(containerId, fragment, tag).commitAllowingStateLoss()
+fun addFragment(fragmentManager: FragmentManager, fragment: Fragment, containerId: Int, arg: Bundle? = null, tag: String? = null) {
+    if (!fragment.isAdded)
+        fragmentManager.beginTransaction()
+                .add(containerId, fragment.apply { arguments = arg }, tag)
+                .commitAllowingStateLoss()
 }
 
 fun removeFragment(fragmentManager: FragmentManager, fragment: Fragment) {
@@ -32,8 +31,7 @@ fun addProgressBar(fragmentManager: FragmentManager, containerId: Int) {
 }
 
 fun addTagFragment(fragmentManager: FragmentManager, containerId: Int) {
-    if (fragmentManager.findFragmentById(tagFragment.id) == null)
-        addFragment(fragmentManager, tagFragment, containerId)
+    addFragment(fragmentManager, tagFragment, containerId)
 }
 
 fun removeTagFragment(fragmentManager: FragmentManager) {
@@ -53,7 +51,7 @@ fun fieldsNotEmpty(username: String, password: String, context: Context): Boolea
 }
 
 fun validUsername(username: String, context: Context): Boolean {
-    return if(isEmail(username) ||
+    return if (isEmail(username) ||
             StringUtils.containsOnly(username.toLowerCase(), "abcdefghijklmnopqrstuvwxyz0123456789-_."))
         true
     else {

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

@@ -20,7 +20,7 @@
         tools:ignore="ContentDescription" />
 
     <AutoCompleteTextView
-        android:id="@+id/tag"
+        android:id="@+id/tag_et"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:layout_marginTop="8dp"

app/src/main/res/values-ru/strings.xml

@@ -20,6 +20,7 @@
     <string name="toast_successful_sign_up">Поздравляем! Теперь вы можете использовать словарь с любого устройства</string>
     <string name="toast_enter_username_password">Пожалуйста, введите логин и пароль</string>
     <string name="toast_invalid_username">Пожалуйста, придумайте логин, используя символы a–z, цифры 0–9 и символы -_.</string>
-    <string name="add_tag">Добавить тег</string>
+    <string name="enter_tag">Добавить тег</string>
     <string name="toast_select_words_to_tag">Выберите слова для тега</string>
+    <string name="toast_tag_cannot_be_empty">Пожалуйста, введите тег</string>
 </resources>
\ No newline at end of file

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

@@ -13,7 +13,7 @@
     <string name="log_out">Log out</string>
     <string name="sign_up">Sign Up</string>
     <string name="log_in">Log In</string>
-    <string name="add_tag">Add tag</string>
+    <string name="enter_tag">Add tag</string>
 
     <!--Toast messages-->
     <string name="toast_empty_vocabulary">Your vocabulary is empty. Add your fist word!</string>
@@ -22,5 +22,5 @@
     <string name="toast_enter_username_password">Please, enter username and password</string>
     <string name="toast_invalid_username">Please, create a username using letters a–z, numbers 0–9 and characters -_.</string>
     <string name="toast_select_words_to_tag">Select words to tag</string>
-    <string name="enter_tag">Enter tag</string>
+    <string name="toast_tag_cannot_be_empty">Please, enter the tag</string>
 </resources>