net.sourceforge.servestream.activity.OrganizeUrlsActivity.java Source code

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Here is the source code for net.sourceforge.servestream.activity.OrganizeUrlsActivity.java

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/*
 * ServeStream: A HTTP stream browser/player for Android
 * Copyright 2013 William Seemann
 * 
 * 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 net.sourceforge.servestream.activity;

import java.util.ArrayList;
import java.util.List;

import net.sourceforge.servestream.R;
import net.sourceforge.servestream.adapter.OrganizeAdapter;
import net.sourceforge.servestream.bean.UriBean;
import net.sourceforge.servestream.dbutils.StreamDatabase;
import net.sourceforge.servestream.dslv.DragSortController;
import net.sourceforge.servestream.dslv.DragSortListView;
import android.content.ContentValues;
import android.content.Intent;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;

public class OrganizeUrlsActivity extends ActionBarActivity {

    private static final int MENU_ID_ACCEPT = 2;

    private List<UriBean> mBaselineUris;

    private OrganizeAdapter mAdapter;
    private StreamDatabase mStreamdb;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_organize_urls);

        ActionBar actionBar = getSupportActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);

        DragSortListView list = (DragSortListView) findViewById(android.R.id.list);
        list.setEmptyView(findViewById(android.R.id.empty));
        list.setDropListener(dropListener);
        list.setRemoveListener(removeListener);

        DragSortController controller = new DragSortController(list);
        controller.setDragInitMode(DragSortController.ON_DRAG);
        controller.setRemoveMode(DragSortController.FLING_REMOVE);
        controller.setRemoveEnabled(true);
        controller.setDragHandleId(R.id.drag_handle);
        list.setOnTouchListener(controller);

        mAdapter = new OrganizeAdapter(this, new ArrayList<UriBean>());
        list.setAdapter(mAdapter);
    }

    public void onStart() {
        super.onStart();

        mStreamdb = new StreamDatabase(this);
        updateList();
    }

    public void onStop() {
        super.onStop();

        mStreamdb.close();
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            Intent intent = new Intent(this, MainActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(intent);
            return true;
        case MENU_ID_ACCEPT:
            saveChanges();
        default:
            break;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);
        TypedArray drawables = obtainStyledAttributes(new int[] { R.attr.navigation_accept });
        MenuItem item = menu.add(Menu.NONE, MENU_ID_ACCEPT, Menu.NONE, R.string.confirm_label);
        item.setIcon(drawables.getDrawable(0));
        MenuItemCompat.setShowAsAction(item,
                MenuItemCompat.SHOW_AS_ACTION_IF_ROOM | MenuItemCompat.SHOW_AS_ACTION_WITH_TEXT);
        return true;
    }

    private void updateList() {
        mAdapter.clear();
        mBaselineUris = mStreamdb.getUris();
        for (int i = 0; i < mBaselineUris.size(); i++) {
            mAdapter.add(mBaselineUris.get(i));
        }
        mAdapter.notifyDataSetChanged();
    }

    private synchronized void saveChanges() {
        List<UriBean> uris = mAdapter.getItems();

        List<UriBean> urisToDelete = new ArrayList<UriBean>();

        for (int i = 0; i < mBaselineUris.size(); i++) {
            if (!uris.contains(mBaselineUris.get(i))) {
                mStreamdb.deleteUri(mBaselineUris.get(i));
                urisToDelete.add(mBaselineUris.get(i));
            }
        }

        for (int i = 0; i < urisToDelete.size(); i++) {
            mBaselineUris.remove(urisToDelete.get(i));
        }

        int listPosition = 1;

        ContentValues values = new ContentValues();

        for (int i = 0; i < uris.size(); i++) {
            values.clear();
            values.put(StreamDatabase.FIELD_STREAM_LIST_POSITION, listPosition);
            listPosition++;

            mStreamdb.updateUri(uris.get(i), values);
        }

        updateList();
    }

    private DragSortListView.DropListener dropListener = new DragSortListView.DropListener() {

        @Override
        public void drop(int from, int to) {
            UriBean item = mAdapter.getItem(from);

            mAdapter.remove(item);
            mAdapter.insert(item, to);
        }
    };

    private DragSortListView.RemoveListener removeListener = new DragSortListView.RemoveListener() {

        @Override
        public void remove(int which) {
            mAdapter.remove(mAdapter.getItem(which));
        }
    };
}