Signal-Android/app/src/main/java/org/thoughtcrime/securesms/reactions/ReactionEmojiCountAdapter.java

131 lines
4.5 KiB
Java

package org.thoughtcrime.securesms.reactions;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.recyclerview.widget.RecyclerView;
import com.annimon.stream.Stream;
import org.thoughtcrime.securesms.R;
import org.thoughtcrime.securesms.components.emoji.EmojiTextView;
import org.thoughtcrime.securesms.util.ThemeUtil;
import java.util.Collections;
import java.util.List;
final class ReactionEmojiCountAdapter extends RecyclerView.Adapter<ReactionEmojiCountAdapter.ViewHolder> {
private List<EmojiCount> emojiCountList = Collections.emptyList();
private int totalCount = 0;
private int selectedPosition = -1;
private final OnEmojiCountSelectedListener onEmojiCountSelectedListener;
ReactionEmojiCountAdapter(@NonNull OnEmojiCountSelectedListener onEmojiCountSelectedListener) {
this.onEmojiCountSelectedListener = onEmojiCountSelectedListener;
}
void updateData(@NonNull List<EmojiCount> newEmojiCount) {
if (selectedPosition != -1 && selectedPosition != 0) {
int emojiPosition = selectedPosition - 1;
EmojiCount oldSelection = emojiCountList.get(emojiPosition);
int newPosition = -1;
for (int i = 0; i < newEmojiCount.size(); i++) {
if (newEmojiCount.get(i).getBaseEmoji().equals(oldSelection.getBaseEmoji())) {
newPosition = i;
break;
}
}
if (newPosition == -1 && !newEmojiCount.isEmpty()) {
selectedPosition = 0;
onEmojiCountSelectedListener.onSelected(null);
} else {
selectedPosition = newPosition + 1;
}
} else if (!newEmojiCount.isEmpty()) {
selectedPosition = 0;
onEmojiCountSelectedListener.onSelected(null);
}
this.emojiCountList = newEmojiCount;
this.totalCount = Stream.of(emojiCountList).reduce(0, (sum, e) -> sum + e.getCount());
notifyDataSetChanged();
}
@Override
public @NonNull ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.reactions_bottom_sheet_dialog_fragment_emoji_item, parent, false), position -> {
if (position != -1 && position != selectedPosition) {
onEmojiCountSelectedListener.onSelected(position == 0 ? null : emojiCountList.get(position - 1).getBaseEmoji());
int oldPosition = selectedPosition;
selectedPosition = position;
notifyItemChanged(oldPosition);
notifyItemChanged(position);
}
});
}
@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
if (position == 0) {
holder.bind(null, totalCount, selectedPosition == position);
} else {
EmojiCount item = emojiCountList.get(position - 1);
holder.bind(item.getDisplayEmoji(), item.getCount(), selectedPosition == position);
}
}
@Override
public int getItemCount() {
return 1 + emojiCountList.size();
}
static final class ViewHolder extends RecyclerView.ViewHolder {
private final Drawable selectedBackground;
private final EmojiTextView emojiView;
private final TextView countView;
ViewHolder(@NonNull View itemView, @NonNull OnViewHolderClickListener onClickListener) {
super(itemView);
emojiView = itemView.findViewById(R.id.reactions_bottom_view_emoji_item_emoji);
countView = itemView.findViewById(R.id.reactions_bottom_view_emoji_item_text );
selectedBackground = ThemeUtil.getThemedDrawable(itemView.getContext(), R.attr.reactions_bottom_dialog_fragment_emoji_selected);
itemView.setOnClickListener(v -> onClickListener.onClick(getAdapterPosition()));
}
void bind(@Nullable String emoji, int count, boolean selected) {
if (emoji != null) {
emojiView.setVisibility(View.VISIBLE);
emojiView.setText(emoji);
countView.setText(String.valueOf(count));
} else {
emojiView.setVisibility(View.GONE);
countView.setText(itemView.getContext().getString(R.string.ReactionsBottomSheetDialogFragment_all, count));
}
itemView.setBackground(selected ? selectedBackground : null);
}
}
interface OnViewHolderClickListener {
void onClick(int position);
}
interface OnEmojiCountSelectedListener {
void onSelected(@Nullable String emoji);
}
}