Merge pull request #506 from Brice-W/group-creation-ui

Improvement to the Group creation UI

app/src/main/java/org/thoughtcrime/securesms/loki/activities/CreateClosedGroupActivity.kt

@@ -32,6 +32,10 @@ class CreateClosedGroupActivity : PassphraseRequiredActionBarActivity(), LoaderM
         set(newValue) { field = newValue; invalidateOptionsMenu() }
     private var members = listOf<String>()
         set(value) { field = value; selectContactsAdapter.members = value }
+    private val publicKey: String
+        get() {
+            return TextSecurePreferences.getLocalNumber(this)!!
+        }
 
     private val selectContactsAdapter by lazy {
         SelectContactsAdapter(this, GlideApp.with(this))
@@ -72,7 +76,8 @@ class CreateClosedGroupActivity : PassphraseRequiredActionBarActivity(), LoaderM
     }
 
     private fun update(members: List<String>) {
-        this.members = members
+        //if there is a Note to self conversation, it loads self in the list, so we need to remove it here
+        this.members = members.minus(publicKey)
         mainContentContainer.visibility = if (members.isEmpty()) View.GONE else View.VISIBLE
         emptyStateContainer.visibility = if (members.isEmpty()) View.VISIBLE else View.GONE
         invalidateOptionsMenu()

app/src/main/java/org/thoughtcrime/securesms/loki/activities/SelectContactsAdapter.kt

@@ -36,6 +36,27 @@ class SelectContactsAdapter(private val context: Context, private val glide: Gli
             isSelected)
     }
 
+    override fun onBindViewHolder(viewHolder: ViewHolder,
+                                  position: Int,
+                                  payloads: MutableList<Any>) {
+        if (payloads.isNotEmpty()) {
+            // Because these updates can be batched,
+            // there can be multiple payloads for a single bind
+            when (payloads[0]) {
+                Payload.MEMBER_CLICKED -> {
+                    val member = members[position]
+                    val isSelected = selectedMembers.contains(member)
+                    viewHolder.view.toggleCheckbox(isSelected)
+                }
+            }
+        } else {
+            // When payload list is empty,
+            // or we don't have logic to handle a given type,
+            // default to full bind:
+            this.onBindViewHolder(viewHolder, position)
+        }
+    }
+
     private fun onMemberClick(member: String) {
         if (selectedMembers.contains(member)) {
             selectedMembers.remove(member)
@@ -43,6 +64,11 @@ class SelectContactsAdapter(private val context: Context, private val glide: Gli
             selectedMembers.add(member)
         }
         val index = members.indexOf(member)
-        notifyItemChanged(index)
+        notifyItemChanged(index, Payload.MEMBER_CLICKED)
+    }
+
+    // define below the different events used to notify the adapter
+    enum class Payload {
+        MEMBER_CLICKED
     }
 }

app/src/main/java/org/thoughtcrime/securesms/loki/views/UserView.kt

@@ -82,6 +82,11 @@ class UserView : LinearLayout {
         }
     }
 
+    fun toggleCheckbox(isSelected: Boolean = false) {
+        actionIndicatorImageView.visibility = View.VISIBLE
+        actionIndicatorImageView.setImageResource(if (isSelected) R.drawable.ic_circle_check else R.drawable.ic_circle)
+    }
+
     fun unbind() {
 
     }