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Diffstat (limited to 'merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt')
-rw-r--r--merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt106
1 files changed, 106 insertions, 0 deletions
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt
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+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/CategoriesFragment.kt
@@ -0,0 +1,106 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2020 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.merchantpos.order
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.View.INVISIBLE
+import android.view.ViewGroup
+import android.widget.Button
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.Observer
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.Adapter
+import kotlinx.android.synthetic.main.fragment_categories.*
+import net.taler.merchantpos.MainViewModel
+import net.taler.merchantpos.R
+import net.taler.merchantpos.order.CategoryAdapter.CategoryViewHolder
+
+interface CategorySelectionListener {
+ fun onCategorySelected(category: Category)
+}
+
+class CategoriesFragment : Fragment(), CategorySelectionListener {
+
+ private val viewModel: MainViewModel by activityViewModels()
+ private val orderManager by lazy { viewModel.orderManager }
+ private val adapter = CategoryAdapter(this)
+
+ override fun onCreateView(
+ inflater: LayoutInflater,
+ container: ViewGroup?,
+ savedInstanceState: Bundle?
+ ): View? {
+ return inflater.inflate(R.layout.fragment_categories, container, false)
+ }
+
+ override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+ categoriesList.apply {
+ adapter = this@CategoriesFragment.adapter
+ layoutManager = LinearLayoutManager(requireContext())
+ }
+
+ orderManager.categories.observe(viewLifecycleOwner, Observer { categories ->
+ adapter.setItems(categories)
+ progressBar.visibility = INVISIBLE
+ })
+ }
+
+ override fun onCategorySelected(category: Category) {
+ orderManager.setCurrentCategory(category)
+ }
+
+}
+
+private class CategoryAdapter(
+ private val listener: CategorySelectionListener
+) : Adapter<CategoryViewHolder>() {
+
+ private val categories = ArrayList<Category>()
+
+ override fun getItemCount() = categories.size
+
+ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CategoryViewHolder {
+ val view =
+ LayoutInflater.from(parent.context).inflate(R.layout.list_item_category, parent, false)
+ return CategoryViewHolder(view)
+ }
+
+ override fun onBindViewHolder(holder: CategoryViewHolder, position: Int) {
+ holder.bind(categories[position])
+ }
+
+ fun setItems(items: List<Category>) {
+ categories.clear()
+ categories.addAll(items)
+ notifyDataSetChanged()
+ }
+
+ private inner class CategoryViewHolder(v: View) : RecyclerView.ViewHolder(v) {
+ private val button: Button = v.findViewById(R.id.button)
+
+ fun bind(category: Category) {
+ button.text = category.localizedName
+ button.isPressed = category.selected
+ button.setOnClickListener { listener.onCategorySelected(category) }
+ }
+ }
+
+}