GitNex-Android-App/app/src/main/java/org/mian/gitnex/adapters/FilesAdapter.java

package org.mian.gitnex.adapters;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.appcompat.content.res.AppCompatResources;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.io.FileUtils;
import org.gitnex.tea4j.v2.models.ContentsResponse;
import org.mian.gitnex.R;

/**
 * @author M M Arif
 */
public class FilesAdapter extends RecyclerView.Adapter<FilesAdapter.FilesViewHolder>
		implements Filterable {

	private final List<ContentsResponse> originalFiles = new ArrayList<>();
	private final List<ContentsResponse> alteredFiles = new ArrayList<>();

	private final Context context;

	private final FilesAdapterListener filesListener;
	private final Filter filesFilter =
			new Filter() {

				@Override
				protected FilterResults performFiltering(CharSequence constraint) {

					List<ContentsResponse> filteredList = new ArrayList<>();

					if (constraint == null || constraint.length() == 0) {
						filteredList.addAll(originalFiles);
					} else {
						String filterPattern = constraint.toString().toLowerCase().trim();

						for (ContentsResponse item : originalFiles) {
							if (item.getName().toLowerCase().contains(filterPattern)
									|| item.getPath().toLowerCase().contains(filterPattern)) {
								filteredList.add(item);
							}
						}
					}

					FilterResults results = new FilterResults();
					results.values = filteredList;

					return results;
				}

				@Override
				protected void publishResults(CharSequence constraint, FilterResults results) {

					alteredFiles.clear();
					alteredFiles.addAll((List) results.values);

					notifyDataSetChanged();
				}
			};

	public FilesAdapter(Context ctx, FilesAdapterListener filesListener) {

		this.context = ctx;
		this.filesListener = filesListener;
	}

	public List<ContentsResponse> getOriginalFiles() {
		return originalFiles;
	}

	public void notifyOriginalDataSetChanged() {

		alteredFiles.clear();
		alteredFiles.addAll(originalFiles);

		notifyDataSetChanged();
	}

	@NonNull @Override
	public FilesAdapter.FilesViewHolder onCreateViewHolder(
			@NonNull ViewGroup parent, int viewType) {
		View v =
				LayoutInflater.from(parent.getContext())
						.inflate(R.layout.list_files, parent, false);
		return new FilesAdapter.FilesViewHolder(v);
	}

	@Override
	public void onBindViewHolder(@NonNull FilesAdapter.FilesViewHolder holder, int position) {

		ContentsResponse currentItem = alteredFiles.get(position);

		holder.file = currentItem;
		holder.fileName.setText(currentItem.getName());

		switch (currentItem.getType()) {
			case "file":
				holder.fileTypeIs.setImageDrawable(
						AppCompatResources.getDrawable(context, R.drawable.ic_file));
				holder.fileInfo.setVisibility(View.VISIBLE);
				holder.fileInfo.setText(
						FileUtils.byteCountToDisplaySize(Math.toIntExact(currentItem.getSize())));
				break;

			case "dir":
				holder.fileTypeIs.setImageDrawable(
						AppCompatResources.getDrawable(context, R.drawable.ic_directory));
				holder.fileInfo.setVisibility(View.GONE);
				break;

			case "submodule":
				holder.fileTypeIs.setImageDrawable(
						AppCompatResources.getDrawable(context, R.drawable.ic_submodule));
				holder.fileInfo.setVisibility(View.GONE);
				break;

			case "symlink":
				holder.fileTypeIs.setImageDrawable(
						AppCompatResources.getDrawable(context, R.drawable.ic_symlink));
				holder.fileInfo.setVisibility(View.GONE);
				break;

			default:
				holder.fileTypeIs.setImageDrawable(
						AppCompatResources.getDrawable(context, R.drawable.ic_question));
		}
	}

	@Override
	public int getItemCount() {
		return alteredFiles.size();
	}

	@Override
	public Filter getFilter() {
		return filesFilter;
	}

	public interface FilesAdapterListener {

		void onClickFile(ContentsResponse file);
	}

	class FilesViewHolder extends RecyclerView.ViewHolder {

		private final ImageView fileTypeIs;
		private final TextView fileName;
		private final TextView fileInfo;
		private ContentsResponse file;

		private FilesViewHolder(View itemView) {

			super(itemView);

			LinearLayout fileFrame = itemView.findViewById(R.id.fileFrame);
			fileName = itemView.findViewById(R.id.fileName);
			fileTypeIs = itemView.findViewById(R.id.fileTypeIs);
			fileInfo = itemView.findViewById(R.id.fileInfo);

			fileFrame.setOnClickListener(v -> filesListener.onClickFile(file));

			// ImageView filesDropdownMenu = itemView.findViewById(R.id.filesDropdownMenu);

			/*filesDropdownMenu.setOnClickListener(new View.OnClickListener() {
				@Override
				public void onClick(View v) {

					final Context context = v.getContext();
					Context context_ = new ContextThemeWrapper(context, R.style.popupMenuStyle);

					PopupMenu popupMenu = new PopupMenu(context_, v);
					popupMenu.inflate(R.menu.files_dotted_list_menu);

					Object menuHelper;
					Class[] argTypes;
					try {

						Field fMenuHelper = PopupMenu.class.getDeclaredField("mPopup");
						fMenuHelper.setAccessible(true);
						menuHelper = fMenuHelper.get(popupMenu);
						argTypes = new Class[] { boolean.class };
						menuHelper.getClass().getDeclaredMethod("setForceShowIcon",
								argTypes).invoke(menuHelper, true);

					} catch (Exception e) {

						popupMenu.show();
						return;

					}

					popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
						@Override
						public boolean onMenuItemClick(MenuItem item) {
							switch (item.getItemId()) {
								case R.id.deleteFile:

									Intent intent = new Intent(context, DeleteFileActivity.class);
									intent.putExtra("repoFullNameForDeleteFile", fullName.getText());
									context.startActivity(intent);
									break;

								case R.id.editFile:

									Intent intentW = new Intent(context, EditFileActivity.class);
									intentW.putExtra("repoFullNameForEditFile", fullName.getText());
									context.startActivity(intentW);
									break;

								case R.id.openInBrowser:

									Intent intentOpenInBrowser = new Intent(context, OpenFileInBrowserActivity.class);
									intentOpenInBrowser.putExtra("fileFullNameBrowser", fullName.getText());
									context.startActivity(intentOpenInBrowser);
									break;

							}
							return false;
						}
					});

					popupMenu.show();

				}
			});*/

		}
	}
}