implement channel discovery

refactor muc search to use http
cache channel search results

1 files changed, 78 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/ui/adapter/ChannelSearchResultAdapter.java b/src/main/java/de/pixart/messenger/ui/adapter/ChannelSearchResultAdapter.java
new file mode 100644
index 000000000..d137e3a6f
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/adapter/ChannelSearchResultAdapter.java
@@ -0,0 +1,78 @@
+package de.pixart.messenger.ui.adapter;
+
+import android.databinding.DataBindingUtil;
+import android.support.annotation.NonNull;
+import android.support.v7.recyclerview.extensions.ListAdapter;
+import android.support.v7.util.DiffUtil;
+import android.support.v7.widget.RecyclerView;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import de.pixart.messenger.R;
+import de.pixart.messenger.databinding.SearchResultItemBinding;
+import de.pixart.messenger.http.services.MuclumbusService;
+import de.pixart.messenger.ui.util.AvatarWorkerTask;
+
+
+public class ChannelSearchResultAdapter extends ListAdapter<MuclumbusService.Room, ChannelSearchResultAdapter.ViewHolder> {
+
+    private OnChannelSearchResultSelected listener;
+
+    private static final DiffUtil.ItemCallback<MuclumbusService.Room> DIFF = new DiffUtil.ItemCallback<MuclumbusService.Room>() {
+        @Override
+        public boolean areItemsTheSame(@NonNull MuclumbusService.Room a, @NonNull MuclumbusService.Room b) {
+            return a.address != null && a.address.equals(b.address);
+        }
+
+        @Override
+        public boolean areContentsTheSame(@NonNull MuclumbusService.Room a, @NonNull MuclumbusService.Room b) {
+            return a.equals(b);
+        }
+    };
+
+    public ChannelSearchResultAdapter() {
+        super(DIFF);
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
+        return new ViewHolder(DataBindingUtil.inflate(LayoutInflater.from(viewGroup.getContext()), R.layout.search_result_item, viewGroup, false));
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder viewHolder, int position) {
+        final MuclumbusService.Room searchResult = getItem(position);
+        viewHolder.binding.name.setText(searchResult.getName());
+        final String description = searchResult.getDescription();
+        if (TextUtils.isEmpty(description)) {
+            viewHolder.binding.description.setVisibility(View.GONE);
+        } else {
+            viewHolder.binding.description.setText(description);
+            viewHolder.binding.description.setVisibility(View.VISIBLE);
+        }
+        viewHolder.binding.room.setText(searchResult.getRoom().asBareJid().toString());
+        AvatarWorkerTask.loadAvatar(searchResult, viewHolder.binding.avatar, R.dimen.avatar);
+        viewHolder.binding.getRoot().setOnClickListener(v -> listener.onChannelSearchResult(searchResult));
+    }
+
+    public void setOnChannelSearchResultSelectedListener(OnChannelSearchResultSelected listener) {
+        this.listener = listener;
+    }
+
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+
+        private final SearchResultItemBinding binding;
+
+        private ViewHolder(SearchResultItemBinding binding) {
+            super(binding.getRoot());
+            this.binding = binding;
+        }
+    }
+
+    public interface OnChannelSearchResultSelected {
+        void onChannelSearchResult(MuclumbusService.Room result);
+    }
+}
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