org.totschnig.myexpenses.fragment.StaleImagesList.java Source code

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Here is the source code for org.totschnig.myexpenses.fragment.StaleImagesList.java

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/*   This file is part of My Expenses.
 *   My Expenses 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.
 *
 *   My Expenses 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 My Expenses.  If not, see <http://www.gnu.org/licenses/>.
*/

package org.totschnig.myexpenses.fragment;

import android.annotation.SuppressLint;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.util.SparseBooleanArray;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.ImageView;

import com.squareup.picasso.Picasso;

import org.totschnig.myexpenses.R;
import org.totschnig.myexpenses.activity.ProtectedFragmentActivity;
import org.totschnig.myexpenses.model.Transaction;
import org.totschnig.myexpenses.provider.DatabaseConstants;
import org.totschnig.myexpenses.provider.TransactionProvider;
import org.totschnig.myexpenses.task.TaskExecutionFragment;
import org.totschnig.myexpenses.ui.SimpleCursorAdapter;

public class StaleImagesList extends ContextualActionBarFragment implements LoaderManager.LoaderCallbacks<Cursor> {
    SimpleCursorAdapter mAdapter;
    private Cursor mImagesCursor;

    @Override
    public boolean dispatchCommandMultiple(int command, SparseBooleanArray positions, Long[] itemIds) {
        int taskId = 0, progressMessage = 0;
        switch (command) {
        case R.id.SAVE_COMMAND:
            taskId = TaskExecutionFragment.TASK_SAVE_IMAGES;
            progressMessage = R.string.progress_dialog_saving;
            break;
        case R.id.DELETE_COMMAND:
            taskId = TaskExecutionFragment.TASK_DELETE_IMAGES;
            progressMessage = R.string.progress_dialog_deleting;
            break;
        }
        if (taskId == 0) {
            return super.dispatchCommandMultiple(command, positions, itemIds);
        }
        finishActionMode();
        ((ProtectedFragmentActivity) getActivity()).startTaskExecution(taskId, itemIds, null, progressMessage);
        return true;
    }

    @Override
    @SuppressLint("InlinedApi")
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.images_list, container, false);

        final GridView lv = (GridView) v.findViewById(R.id.grid);

        // Create an array to specify the fields we want to display in the list
        String[] from = new String[] { DatabaseConstants.KEY_PICTURE_URI };

        // and an array of the fields we want to bind those fields to 
        int[] to = new int[] { R.id.image };

        // Now create a simple cursor adapter and set it to display
        mAdapter = new SimpleCursorAdapter(getActivity(), R.layout.image_view, null, from, to, 0) {
            @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                return super.getView(position, convertView, parent);
            }

            @Override
            public void setViewImage(ImageView v, String value) {
                if (v.getTag() != null && v.getTag().equals(value)) {
                    //already dealing with value; nothing to do
                    return;
                }
                Picasso.with(getActivity()).load(value).placeholder(R.drawable.empty_photo).fit().into(v);
                v.setTag(value);
                v.setContentDescription(value);
            }
        };
        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                mImagesCursor.moveToPosition(position);
                startActivity(Transaction.getViewIntent(Uri.parse(
                        mImagesCursor.getString(mImagesCursor.getColumnIndex(DatabaseConstants.KEY_PICTURE_URI)))));
            }
        });
        getLoaderManager().initLoader(0, null, this);
        lv.setAdapter(mAdapter);
        registerForContextualActionBar(lv);
        return v;
    }

    @Override
    public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
        CursorLoader cursorLoader = new CursorLoader(getActivity(), TransactionProvider.STALE_IMAGES_URI, null,
                null, null, null);
        return cursorLoader;
    }

    @Override
    public void onLoadFinished(Loader<Cursor> arg0, Cursor c) {
        mImagesCursor = c;
        mAdapter.swapCursor(c);
    }

    @Override
    public void onLoaderReset(Loader<Cursor> arg0) {
        mImagesCursor = null;
        mAdapter.swapCursor(null);
    }

    @Override
    protected void inflateHelper(Menu menu, int listId) {
        MenuInflater inflater = getActivity().getMenuInflater();
        inflater.inflate(R.menu.stale_images_context, menu);
    }
}