FontListAdapter.java

/*
 * Copyright 2015 Priyesh Patel
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.chromium.fontinstaller.ui.fontlist;

import android.content.Context;
import android.content.Intent;
import android.graphics.Typeface;
import android.support.v4.util.LruCache;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.chromium.fontinstaller.R;
import com.chromium.fontinstaller.models.FontPackage;
import com.chromium.fontinstaller.models.Style;
import com.chromium.fontinstaller.ui.install.FontActivity;
import com.chromium.fontinstaller.util.FileUtils;

import java.util.ArrayList;

public final class FontListAdapter extends RecyclerView.Adapter<FontListAdapter.ViewHolder> {

  private boolean mEnableTrueFont;
  private ArrayList<String> mFontNames;
  private LruCache<String, Typeface> mFontCache;

  /* package */ FontListAdapter(Context context, ArrayList<String> fontNames, boolean enableTrueFont) {
    mFontNames = fontNames;
    mFontCache = new LruCache<>(FileUtils.getMaxCacheSize(context));
    mEnableTrueFont = enableTrueFont;

    setHasStableIds(true);
  }

  @Override public FontListAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.font_list_item, parent, false);
    return new ViewHolder(view);
  }

  @Override public void onBindViewHolder(ViewHolder holder, int position) {
    final String currentFontName = mFontNames.get(position);

    holder.fontName.setText(currentFontName);

    if (mEnableTrueFont) {
      Typeface currentFont = mFontCache.get(currentFontName);
      if (currentFont == null) {
        currentFont = new FontPackage(currentFontName).getTypeface(Style.REGULAR);
        mFontCache.put(currentFontName, currentFont);
      }
      holder.fontName.setTypeface(currentFont);
    }
  }

  @Override public long getItemId(int position) {
    return mFontNames.get(position).hashCode();
  }

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

  public final class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
    final TextView fontName;

    public ViewHolder(View view) {
      super(view);
      view.setOnClickListener(this);
      fontName = (TextView) view.findViewById(R.id.font_name);
    }

    @Override public void onClick(View view) {
      final Context context = view.getContext();
      final String fontName = mFontNames.get(getLayoutPosition());
      final Intent intent = FontActivity.getLaunchIntent(context, fontName);
      context.startActivity(intent);
    }
  }
}