Implement deleting shopping items

app/app/src/main/java/tech/mercantec/easyeat/helpers/shopping_list.kt

@@ -20,3 +20,7 @@ fun addShoppingItem(ctx: Context, name: String, amount: Double?, unit: String?)
 fun toggleShoppingItemChecked(ctx: Context, item: ShoppingListItem) {
     requestJson<Unit, Boolean>(ctx, "PUT", "/api/ShoppingList/check?itemId=${item.id}", null)
 }
+
+fun deleteShoppingItem(ctx: Context, item: ShoppingListItem) {
+    requestJson<Unit, Boolean>(ctx, "DELETE", "/api/ShoppingList/delete?itemId=${item.id}", null)
+}

app/app/src/main/java/tech/mercantec/easyeat/ui/shopping_list/ShoppingListFragment.kt

@@ -8,6 +8,7 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.ArrayAdapter
 import android.widget.EditText
+import android.widget.PopupMenu
 import android.widget.Spinner
 import android.widget.Toast
 import androidx.fragment.app.Fragment
@@ -15,6 +16,7 @@ import tech.mercantec.easyeat.R
 import tech.mercantec.easyeat.databinding.FragmentShoppingListBinding
 import tech.mercantec.easyeat.helpers.ApiRequestException
 import tech.mercantec.easyeat.helpers.addShoppingItem
+import tech.mercantec.easyeat.helpers.deleteShoppingItem
 import tech.mercantec.easyeat.helpers.getShoppingList
 import tech.mercantec.easyeat.helpers.toggleShoppingItemChecked
 import tech.mercantec.easyeat.models.Dish
@@ -38,6 +40,7 @@ class ShoppingListFragment : Fragment() {
         _binding = FragmentShoppingListBinding.inflate(inflater, container, false)
         val root: View = binding.root
 
+        // Fetch shopping list items
         thread {
             val items: Array<ShoppingListItem>
             try {
@@ -55,6 +58,7 @@ class ShoppingListFragment : Fragment() {
             }
         }
 
+        // Check / uncheck when clicking shopping item
         binding.shoppingList.setOnItemClickListener { parent, view, position, id ->
             val item = parent.getItemAtPosition(position) as ShoppingListItem
             item.checked = !item.checked
@@ -73,6 +77,41 @@ class ShoppingListFragment : Fragment() {
             adapter.insert(item, position)
         }
 
+        // Show context menu when long clicking shopping item
+        binding.shoppingList.setOnItemLongClickListener { parent, view, position, id ->
+            val item = parent.getItemAtPosition(position) as ShoppingListItem
+
+            val popup = PopupMenu(requireActivity(), view)
+            popup.apply {
+                menuInflater.inflate(R.menu.shopping_item_context_menu, menu)
+                setOnMenuItemClickListener {
+                    when (it.itemId) {
+                        R.id.remove_shopping_item -> {
+                            (parent.adapter as ShoppingItemAdapter).remove(item)
+
+                            thread {
+                                try {
+                                    deleteShoppingItem(requireContext(), item)
+                                } catch (e: ApiRequestException) {
+                                    activity?.runOnUiThread {
+                                        Toast.makeText(context, e.message, Toast.LENGTH_LONG).show()
+                                    }
+                                }
+                            }
+
+                            true
+                        }
+                        else -> false
+                    }
+                }
+                show()
+            }
+
+
+            return@setOnItemLongClickListener true
+        }
+
+        // Show new item dialog when clicking add
         binding.addToShoppingList.setOnClickListener {
             val view = requireActivity().layoutInflater.inflate(R.layout.dialog_add_to_shopping_list, null)
 

app/app/src/main/res/drawable/ic_delete_24px.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M280,840Q247,840 223.5,816.5Q200,793 200,760L200,240L160,240L160,160L360,160L360,120L600,120L600,160L800,160L800,240L760,240L760,760Q760,793 736.5,816.5Q713,840 680,840L280,840ZM360,680L440,680L440,320L360,320L360,680ZM520,680L600,680L600,320L520,320L520,680Z"/>
+</vector>

app/app/src/main/res/menu/shopping_item_context_menu.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:id="@+id/remove_shopping_item"
+        android:icon="@drawable/ic_delete_24px"
+        android:title="@string/delete_label"
+    />
+</menu>

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

@@ -39,6 +39,7 @@
     <string name="change_password_label">Change password</string>
     <string name="logout_label">Log out</string>
     <string name="checked_desc">Checked</string>
+    <string name="delete_label">Delete</string>
     <string-array name="units">
         <item></item>
         <item>g</item>