conversation: Implement adapter for reaction visualizer

Will display a list of : avatar; contact name; list of interaction (reaction chip using the adapter previously defined)

GitLab: #1236
Change-Id: Ifa6330741a33684a76d53ac00236bbefe40e444a

jami-android/app/src/main/java/cx/ring/adapters/ReactionVisualizerAdapter.kt

+package cx.ring.adapters
+
+import ReactionChipAdapter
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.BaseAdapter
+import cx.ring.R
+import cx.ring.databinding.ItemReactionVisualizerBinding
+import cx.ring.views.AvatarDrawable
+import net.jami.model.ContactViewModel
+import net.jami.model.Interaction
+
+/**
+ * Reaction visualizer (to know who put which reaction)
+ *
+ * @param context The context of the application
+ * @param removeReactionListener A listener to remove a reaction.
+ * @param items The list of items to display
+ */
+class ReactionVisualizerAdapter(
+    private val context: Context,
+    private val removeReactionListener: (Interaction) -> Unit,
+    private var items: List<Pair<ContactViewModel, List<Interaction>>> = emptyList()
+) : BaseAdapter() {
+
+    override fun getCount(): Int = items.size
+
+    override fun getItem(position: Int): Pair<ContactViewModel, List<Interaction>> = items[position]
+
+    override fun getItemId(position: Int): Long =
+        items[position].first.contact.uri.rawUriString.hashCode().toLong()
+
+    override fun hasStableIds(): Boolean = true
+
+    override fun getView(position: Int, convertView: View?, parent: ViewGroup?): View {
+        var view = convertView
+        val binding: ItemReactionVisualizerBinding
+
+        if (view == null) {
+            // If the view does not exist yet,
+            // we inflate it from the corresponding XML layout using a LayoutBinding object
+            binding = ItemReactionVisualizerBinding.inflate(
+                LayoutInflater.from(context), parent, false
+            )
+            view = binding.root
+            view.tag = binding
+        } else
+        // If the view already exists, we retrieve our LayoutBinding object from the view
+            binding = view.tag as ItemReactionVisualizerBinding
+
+        // We retrieve the current item from our data model based on its position
+        val data = getItem(position)
+        // Now we can update the view with data
+
+        val contactViewModel = data.first
+
+        binding.contactInfo.text = data.first.displayName
+        binding.contactInfo.setCompoundDrawablesWithIntrinsicBounds(
+            AvatarDrawable.Builder()
+                .withContact(contactViewModel)
+                .withCircleCrop(true)
+                .build(view.context)
+                .setInSize(view.context.resources.getDimensionPixelSize(R.dimen.conversation_avatar_size)),
+            null, null, null
+        )
+
+        // We set the adapter for the reaction chips.
+        binding.contactReactionsTable.adapter =
+            ReactionChipAdapter(context, data, removeReactionListener)
+
+        // We return the updated view
+        return view
+    }
+
+    /**
+     * Update dataset and reload view.
+     */
+    fun setValues(reactions: List<Pair<ContactViewModel, List<Interaction>>>) {
+        items = reactions
+        notifyDataSetChanged()
+    }
+}
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