1 files changed, 190 insertions, 0 deletions
diff --git a/src/com/android/photos/AlbumFragment.java b/src/com/android/photos/AlbumFragment.java
new file mode 100644
index 000000000..377da0970
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+++ b/src/com/android/photos/AlbumFragment.java
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+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * 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.android.photos;
+
+import android.app.Fragment;
+import android.app.LoaderManager.LoaderCallbacks;
+import android.content.Context;
+import android.content.Intent;
+import android.content.Loader;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.SparseBooleanArray;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.GridView;
+
+import com.android.gallery3d.R;
+import com.android.gallery3d.app.Gallery;
+import com.android.photos.adapters.PhotoThumbnailAdapter;
+import com.android.photos.data.PhotoSetLoader;
+import com.android.photos.shims.LoaderCompatShim;
+import com.android.photos.shims.MediaItemsLoader;
+
+import java.util.ArrayList;
+
+public class AlbumFragment extends Fragment implements OnItemClickListener,
+    LoaderCallbacks<Cursor>, MultiChoiceManager.Delegate, SelectionManager.Client  {
+
+    protected static final String KEY_ALBUM_URI = "AlbumUri";
+    private static final int LOADER_ALBUM = 1;
+
+    private GridView mAlbumView;
+    private View mEmptyView;
+
+    private boolean mInitialLoadComplete = false;
+    private LoaderCompatShim<Cursor> mLoaderCompatShim;
+    private PhotoThumbnailAdapter mAdapter;
+    private MultiChoiceManager mMultiChoiceManager;
+    private SelectionManager mSelectionManager;
+    private String mAlbumPath;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        Context context = getActivity();
+        mAdapter = new PhotoThumbnailAdapter(context);
+        mMultiChoiceManager = new MultiChoiceManager(context, this);
+        mMultiChoiceManager.setSelectionManager(mSelectionManager);
+        Bundle args = getArguments();
+        if (args != null) {
+            mAlbumPath = args.getString(KEY_ALBUM_URI, null);
+        }
+    }
+
+    @Override
+    public void setSelectionManager(SelectionManager manager) {
+        mSelectionManager = manager;
+        if (mMultiChoiceManager != null) {
+            mMultiChoiceManager.setSelectionManager(manager);
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        View root = inflater.inflate(R.layout.photo_set, container, false);
+        mAlbumView = (GridView) root.findViewById(android.R.id.list);
+        // TODO: Remove once UI stabilizes
+        mAlbumView.setColumnWidth(MediaItemsLoader.getThumbnailSize());
+        mAlbumView.setOnItemClickListener(this);
+        mEmptyView = root.findViewById(android.R.id.empty);
+        mEmptyView.setVisibility(View.GONE);
+        mAlbumView.setAdapter(mAdapter);
+        mAlbumView.setChoiceMode(GridView.CHOICE_MODE_MULTIPLE_MODAL);
+        mAlbumView.setMultiChoiceModeListener(mMultiChoiceManager);
+        getLoaderManager().initLoader(LOADER_ALBUM, null, this);
+        updateEmptyStatus();
+        return root;
+    }
+
+    private void updateEmptyStatus() {
+        boolean empty = (mAdapter == null || mAdapter.getCount() == 0);
+        mAlbumView.setVisibility(empty ? View.GONE : View.VISIBLE);
+        mEmptyView.setVisibility(empty && mInitialLoadComplete
+                ? View.VISIBLE : View.GONE);
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position,
+            long id) {
+        if (mLoaderCompatShim == null) {
+            // Not fully initialized yet, discard
+            return;
+        }
+        Cursor item = mAdapter.getItem(position);
+        Uri uri = mLoaderCompatShim.uriForItem(item);
+        Intent intent = new Intent(Intent.ACTION_VIEW, uri);
+        intent.setClass(getActivity(), Gallery.class);
+        startActivity(intent);
+    }
+
+    @Override
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        // TODO: Switch to PhotoSetLoader
+        MediaItemsLoader loader = new MediaItemsLoader(getActivity(), mAlbumPath);
+        mInitialLoadComplete = false;
+        mLoaderCompatShim = loader;
+        mAdapter.setDrawableFactory(mLoaderCompatShim);
+        return loader;
+    }
+
+    @Override
+    public void onLoadFinished(Loader<Cursor> loader,
+            Cursor data) {
+        mAdapter.swapCursor(data);
+        mInitialLoadComplete = true;
+        updateEmptyStatus();
+    }
+
+    @Override
+    public void onLoaderReset(Loader<Cursor> loader) {
+    }
+
+    @Override
+    public int getItemMediaType(Object item) {
+        return ((Cursor) item).getInt(PhotoSetLoader.INDEX_MEDIA_TYPE);
+    }
+
+    @Override
+    public int getItemSupportedOperations(Object item) {
+        return ((Cursor) item).getInt(PhotoSetLoader.INDEX_SUPPORTED_OPERATIONS);
+    }
+
+    @Override
+    public Object getItemAtPosition(int position) {
+        return mAdapter.getItem(position);
+    }
+
+    private ArrayList<Uri> mSubItemUriTemp = new ArrayList<Uri>(1);
+    @Override
+    public ArrayList<Uri> getSubItemUrisForItem(Object item) {
+        mSubItemUriTemp.clear();
+        mSubItemUriTemp.add(mLoaderCompatShim.uriForItem((Cursor) item));
+        return mSubItemUriTemp;
+    }
+
+
+    @Override
+    public Object getPathForItemAtPosition(int position) {
+        return mLoaderCompatShim.getPathForItem(mAdapter.getItem(position));
+    }
+
+    @Override
+    public void deleteItemWithPath(Object itemPath) {
+        mLoaderCompatShim.deleteItemWithPath(itemPath);
+    }
+
+    @Override
+    public SparseBooleanArray getSelectedItemPositions() {
+        return mAlbumView.getCheckedItemPositions();
+    }
+
+    @Override
+    public int getSelectedItemCount() {
+        return mAlbumView.getCheckedItemCount();
+    }
+
+    @Override
+    public Uri getItemUri(Object item) {
+        return mLoaderCompatShim.uriForItem((Cursor) item);
+    }
+}