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      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 
     17 package com.android.photos;
     18 
     19 import android.app.LoaderManager.LoaderCallbacks;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.content.Loader;
     23 import android.database.Cursor;
     24 import android.net.Uri;
     25 import android.os.Bundle;
     26 import android.view.LayoutInflater;
     27 import android.view.View;
     28 import android.view.ViewGroup;
     29 import android.widget.GridView;
     30 import android.widget.ImageView;
     31 import android.widget.TextView;
     32 
     33 import com.android.gallery3d.R;
     34 import com.android.gallery3d.app.Gallery;
     35 import com.android.photos.adapters.PhotoThumbnailAdapter;
     36 import com.android.photos.data.PhotoSetLoader;
     37 import com.android.photos.shims.LoaderCompatShim;
     38 import com.android.photos.shims.MediaItemsLoader;
     39 import com.android.photos.views.HeaderGridView;
     40 
     41 import java.util.ArrayList;
     42 
     43 public 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(), Gallery.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