1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.photos;
18
19import android.app.LoaderManager.LoaderCallbacks;
20import android.content.Context;
21import android.content.Intent;
22import android.content.Loader;
23import android.database.Cursor;
24import android.net.Uri;
25import android.os.Bundle;
26import android.view.LayoutInflater;
27import android.view.View;
28import android.view.ViewGroup;
29import android.widget.GridView;
30import android.widget.ImageView;
31import android.widget.TextView;
32
33import com.android.gallery3d.R;
34import com.android.gallery3d.app.GalleryActivity;
35import com.android.photos.adapters.PhotoThumbnailAdapter;
36import com.android.photos.data.PhotoSetLoader;
37import com.android.photos.shims.LoaderCompatShim;
38import com.android.photos.shims.MediaItemsLoader;
39import com.android.photos.views.HeaderGridView;
40
41import java.util.ArrayList;
42
43public class AlbumFragment extends MultiSelectGridFragment implements LoaderCallbacks<Cursor> {
44
45    protected static final String KEY_ALBUM_URI = "AlbumUri";
46    protected static final String KEY_ALBUM_TITLE = "AlbumTitle";
47    private static final int LOADER_ALBUM = 1;
48
49    private LoaderCompatShim<Cursor> mLoaderCompatShim;
50    private PhotoThumbnailAdapter mAdapter;
51    private String mAlbumPath;
52    private String mAlbumTitle;
53    private View mHeaderView;
54
55    @Override
56    public void onCreate(Bundle savedInstanceState) {
57        super.onCreate(savedInstanceState);
58        Context context = getActivity();
59        mAdapter = new PhotoThumbnailAdapter(context);
60        Bundle args = getArguments();
61        if (args != null) {
62            mAlbumPath = args.getString(KEY_ALBUM_URI, null);
63            mAlbumTitle = args.getString(KEY_ALBUM_TITLE, null);
64        }
65    }
66
67    @Override
68    public View onCreateView(LayoutInflater inflater, ViewGroup container,
69            Bundle savedInstanceState) {
70        getLoaderManager().initLoader(LOADER_ALBUM, null, this);
71        return inflater.inflate(R.layout.album_content, container, false);
72    }
73
74    @Override
75    public void onViewCreated(View view, Bundle savedInstanceState) {
76        super.onViewCreated(view, savedInstanceState);
77        // TODO: Remove once UI stabilizes
78        getGridView().setColumnWidth(MediaItemsLoader.getThumbnailSize());
79    }
80
81    private void updateHeaderView() {
82        if (mHeaderView == null) {
83            mHeaderView = LayoutInflater.from(getActivity())
84                    .inflate(R.layout.album_header, getGridView(), false);
85            ((HeaderGridView) getGridView()).addHeaderView(mHeaderView, null, false);
86
87            // TODO remove this when the data model stabilizes
88            mHeaderView.setMinimumHeight(200);
89        }
90        ImageView iv = (ImageView) mHeaderView.findViewById(R.id.album_header_image);
91        TextView title = (TextView) mHeaderView.findViewById(R.id.album_header_title);
92        TextView subtitle = (TextView) mHeaderView.findViewById(R.id.album_header_subtitle);
93        title.setText(mAlbumTitle);
94        int count = mAdapter.getCount();
95        subtitle.setText(getActivity().getResources().getQuantityString(
96                R.plurals.number_of_photos, count, count));
97        if (count > 0) {
98            iv.setImageDrawable(mLoaderCompatShim.drawableForItem(mAdapter.getItem(0), null));
99        }
100    }
101
102    @Override
103    public void onGridItemClick(GridView g, View v, int position, long id) {
104        if (mLoaderCompatShim == null) {
105            // Not fully initialized yet, discard
106            return;
107        }
108        Cursor item = (Cursor) getItemAtPosition(position);
109        Uri uri = mLoaderCompatShim.uriForItem(item);
110        Intent intent = new Intent(Intent.ACTION_VIEW, uri);
111        intent.setClass(getActivity(), GalleryActivity.class);
112        startActivity(intent);
113    }
114
115    @Override
116    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
117        // TODO: Switch to PhotoSetLoader
118        MediaItemsLoader loader = new MediaItemsLoader(getActivity(), mAlbumPath);
119        mLoaderCompatShim = loader;
120        mAdapter.setDrawableFactory(mLoaderCompatShim);
121        return loader;
122    }
123
124    @Override
125    public void onLoadFinished(Loader<Cursor> loader,
126            Cursor data) {
127        mAdapter.swapCursor(data);
128        updateHeaderView();
129        setAdapter(mAdapter);
130    }
131
132    @Override
133    public void onLoaderReset(Loader<Cursor> loader) {
134    }
135
136    @Override
137    public int getItemMediaType(Object item) {
138        return ((Cursor) item).getInt(PhotoSetLoader.INDEX_MEDIA_TYPE);
139    }
140
141    @Override
142    public int getItemSupportedOperations(Object item) {
143        return ((Cursor) item).getInt(PhotoSetLoader.INDEX_SUPPORTED_OPERATIONS);
144    }
145
146    private ArrayList<Uri> mSubItemUriTemp = new ArrayList<Uri>(1);
147    @Override
148    public ArrayList<Uri> getSubItemUrisForItem(Object item) {
149        mSubItemUriTemp.clear();
150        mSubItemUriTemp.add(mLoaderCompatShim.uriForItem((Cursor) item));
151        return mSubItemUriTemp;
152    }
153
154    @Override
155    public void deleteItemWithPath(Object itemPath) {
156        mLoaderCompatShim.deleteItemWithPath(itemPath);
157    }
158
159    @Override
160    public Uri getItemUri(Object item) {
161        return mLoaderCompatShim.uriForItem((Cursor) item);
162    }
163
164    @Override
165    public Object getPathForItem(Object item) {
166        return mLoaderCompatShim.getPathForItem((Cursor) item);
167    }
168}
169