com.piusvelte.webcaster.MediaListFragment.java Source code

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Here is the source code for com.piusvelte.webcaster.MediaListFragment.java

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/*
 * WebCaster - Chromecast Web Media Library
 * Copyright (C) 2013 Bryan Emmanuel
 *
 * This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  Bryan Emmanuel piusvelte@gmail.com
 */
package com.piusvelte.webcaster;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import com.squareup.picasso.Picasso;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

public class MediaListFragment extends ListFragment {

    private static final String TAG = "MediaListFragment";
    public static final String EXTRA_DIR_POSITION = "com.piusvelte.webcaster.EXTRA_DIR_POSITION";

    int dirPosition = 0;
    MediaListAdapter adapter;
    private Listener callback;

    interface Listener {

        List<Medium> getMediaAt(int dirPosition);

        void openDir(int parent, int child);

        void openMedium(int parent, int child);

        String getTitle(int dirPosition);

        String getHost();

    }

    public void onMediaLoaded(List<Medium> media) {
        adapter.clear();
        adapter.addAll(media);
        adapter.notifyDataSetChanged();
    }

    class MediaListAdapter extends ArrayAdapter<Medium> {

        public MediaListAdapter(Context context, int textViewResourceId, List<Medium> rowMedium) {
            super(context, textViewResourceId, rowMedium);
        }

        @Override
        public View getView(int position, View v, ViewGroup parent) {
            MediaViewHolder mvh;

            if (v == null) {
                v = (View) (LayoutInflater.from(parent.getContext())).inflate(R.layout.media_list_item, null);
                mvh = new MediaViewHolder();
                mvh.imgCover = (ImageView) v.findViewById(R.id.cover);
                mvh.tvFile = (TextView) v.findViewById(R.id.title);
                mvh.imgMore = (ImageView) v.findViewById(R.id.more);
                v.setTag(mvh);
            } else {
                mvh = (MediaViewHolder) v.getTag();
            }

            Medium m = adapter.getItem(position);

            if ((m.getImg() != null) && (m.getImg().length() > 0)) {
                String urlStr = String.format("http://%s/%s", callback.getHost(), m.getImg());

                try {
                    URL url = new URL(urlStr);
                    URI uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(),
                            url.getPath(), url.getQuery(), url.getRef());
                    url = uri.toURL();
                    Picasso.with(getContext()).load(url.toString())
                            .resizeDimen(R.dimen.cover_width, R.dimen.cover_height)
                            .placeholder(android.R.drawable.ic_menu_rotate)
                            .error(android.R.drawable.ic_menu_close_clear_cancel).into(mvh.imgCover);
                } catch (MalformedURLException e) {
                    Log.e(TAG, "Problem parsing url: " + urlStr, e);
                } catch (URISyntaxException e) {
                    Log.e(TAG, "Problem encoding URI: " + urlStr, e);
                }
            } else {
                Picasso.with(getContext()).load(android.R.drawable.ic_menu_close_clear_cancel).into(mvh.imgCover);
            }

            String title = m.getFile().substring(m.getFile().lastIndexOf(File.separator) + 1);
            int l = title.length() - 4;

            if ((l > 0) && ".".equals(title.substring(l, (l + 1)))) {
                title = title.substring(0, l);
            }

            mvh.tvFile.setText(title);

            if (m.getDir().size() > 0) {
                mvh.imgMore.setVisibility(View.VISIBLE);
            } else {
                mvh.imgMore.setVisibility(View.GONE);
            }

            return v;
        }

    }

    static class MediaViewHolder {

        ImageView imgCover;
        TextView tvFile;
        ImageView imgMore;

    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        try {
            callback = (Listener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString());
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        super.onCreateView(inflater, container, savedInstanceState);
        View rootView = inflater.inflate(R.layout.media_list, container, false);
        return rootView;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        adapter = new MediaListAdapter(getActivity(), R.layout.media_list_item, new ArrayList<Medium>());
        setListAdapter(adapter);
        Bundle extras = getArguments();

        if (extras != null) {
            dirPosition = extras.getInt(EXTRA_DIR_POSITION, 0);
        }
    }

    @Override
    public void onListItemClick(ListView list, View view, int position, long id) {
        super.onListItemClick(list, view, position, id);

        if (callback != null) {
            Medium m = adapter.getItem(position);

            if (m.getDir().size() > 0) {
                callback.openDir(dirPosition, position);
            } else if (m.getFile() != null) {
                callback.openMedium(dirPosition, position);
            }
        }
    }

    @Override
    public void onResume() {
        super.onResume();

        if (adapter.isEmpty() && (callback != null)) {
            onMediaLoaded(callback.getMediaAt(dirPosition));
        }
    }

}