handle deleting checklist items

app/src/main/kotlin/com/simplemobiletools/notes/pro/adapters/ChecklistAdapter.kt

@@ -8,14 +8,14 @@ import android.view.ViewGroup
 import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.adapters.MyRecyclerViewAdapter
 import com.simplemobiletools.commons.extensions.getColoredDrawableWithColor
-import com.simplemobiletools.commons.interfaces.RefreshRecyclerViewListener
 import com.simplemobiletools.commons.views.MyRecyclerView
 import com.simplemobiletools.notes.pro.R
+import com.simplemobiletools.notes.pro.interfaces.ChecklistItemsListener
 import com.simplemobiletools.notes.pro.models.ChecklistItem
 import kotlinx.android.synthetic.main.item_checklist.view.*
 import java.util.*
 
-class ChecklistAdapter(activity: BaseSimpleActivity, var items: ArrayList<ChecklistItem>, val listener: RefreshRecyclerViewListener?,
+class ChecklistAdapter(activity: BaseSimpleActivity, var items: ArrayList<ChecklistItem>, val listener: ChecklistItemsListener?,
                        recyclerView: MyRecyclerView, itemClick: (Any) -> Unit) : MyRecyclerViewAdapter(activity, recyclerView, null, itemClick) {
 
     private lateinit var crossDrawable: Drawable
@@ -28,7 +28,15 @@ class ChecklistAdapter(activity: BaseSimpleActivity, var items: ArrayList<Checkl
 
     override fun getActionMenuId() = R.menu.cab_delete_only
 
-    override fun actionItemPressed(id: Int) {}
+    override fun actionItemPressed(id: Int) {
+        if (selectedKeys.isEmpty()) {
+            return
+        }
+
+        when (id) {
+            R.id.cab_delete -> deleteSelection()
+        }
+    }
 
     override fun getSelectableItemCount() = items.size
 
@@ -58,6 +66,34 @@ class ChecklistAdapter(activity: BaseSimpleActivity, var items: ArrayList<Checkl
         checkDrawable = res.getColoredDrawableWithColor(R.drawable.ic_check_big, res.getColor(R.color.md_green_700))
     }
 
+    private fun deleteSelection() {
+        val removeItems = ArrayList<ChecklistItem>(selectedKeys.size)
+        val positions = ArrayList<Int>()
+        selectedKeys.forEach {
+            val key = it
+            val position = items.indexOfFirst { it.id == key }
+            if (position != -1) {
+                positions.add(position)
+
+                val favorite = getItemWithKey(key)
+                if (favorite != null) {
+                    removeItems.add(favorite)
+                }
+            }
+        }
+
+        positions.sortDescending()
+        removeSelectedItems(positions)
+
+        items.removeAll(removeItems)
+        listener?.saveChecklist()
+        if (items.isEmpty()) {
+            listener?.refreshItems()
+        }
+    }
+
+    private fun getItemWithKey(key: Int): ChecklistItem? = items.firstOrNull { it.id == key }
+
     private fun setupView(view: View, checklistItem: ChecklistItem) {
         val isSelected = selectedKeys.contains(checklistItem.id)
         view.apply {

app/src/main/kotlin/com/simplemobiletools/notes/pro/fragments/ChecklistFragment.kt

@@ -8,7 +8,6 @@ import android.view.ViewGroup
 import com.google.gson.Gson
 import com.google.gson.reflect.TypeToken
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.interfaces.RefreshRecyclerViewListener
 import com.simplemobiletools.notes.pro.R
 import com.simplemobiletools.notes.pro.activities.SimpleActivity
 import com.simplemobiletools.notes.pro.adapters.ChecklistAdapter
@@ -16,11 +15,12 @@ import com.simplemobiletools.notes.pro.dialogs.NewChecklistItemDialog
 import com.simplemobiletools.notes.pro.extensions.notesDB
 import com.simplemobiletools.notes.pro.helpers.NOTE_ID
 import com.simplemobiletools.notes.pro.helpers.NotesHelper
+import com.simplemobiletools.notes.pro.interfaces.ChecklistItemsListener
 import com.simplemobiletools.notes.pro.models.ChecklistItem
 import com.simplemobiletools.notes.pro.models.Note
 import kotlinx.android.synthetic.main.fragment_checklist.view.*
 
-class ChecklistFragment : NoteFragment(), RefreshRecyclerViewListener {
+class ChecklistFragment : NoteFragment(), ChecklistItemsListener {
     private var noteId = 0L
     private var note: Note? = null
     private var items = ArrayList<ChecklistItem>()
@@ -64,7 +64,7 @@ class ChecklistFragment : NoteFragment(), RefreshRecyclerViewListener {
                     val currentMaxId = items.maxBy { it.id }?.id ?: 0
                     val checklistItem = ChecklistItem(currentMaxId + 1, it, false)
                     items.add(checklistItem)
-                    saveNote(-1)
+                    saveNote()
                 }
             }
         }
@@ -81,7 +81,7 @@ class ChecklistFragment : NoteFragment(), RefreshRecyclerViewListener {
         }
     }
 
-    private fun saveNote(refreshIndex: Int) {
+    private fun saveNote(refreshIndex: Int = -1) {
         Thread {
             if (note != null && context != null) {
                 if (refreshIndex != -1) {
@@ -96,6 +96,10 @@ class ChecklistFragment : NoteFragment(), RefreshRecyclerViewListener {
         }.start()
     }
 
+    override fun saveChecklist() {
+        saveNote()
+    }
+
     override fun refreshItems() {
     }
 }

app/src/main/kotlin/com/simplemobiletools/notes/pro/interfaces/ChecklistItemsListener.kt

@@ -0,0 +1,7 @@
+package com.simplemobiletools.notes.pro.interfaces
+
+interface ChecklistItemsListener {
+    fun refreshItems()
+
+    fun saveChecklist()
+}

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

@@ -9,7 +9,7 @@
     <com.simplemobiletools.commons.views.MyRecyclerView
         android:id="@+id/checklist_list"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
         android:clipToPadding="false"
         android:overScrollMode="never"
         app:layoutManager="com.simplemobiletools.commons.views.MyLinearLayoutManager"/>