CategoryList.java :  » UnTagged » my-accounts » org » amphiprion » myaccount » Android Open Source

/*
 * @copyright 2010 Gerald Jacobson
 * @license GNU General Public License
 * 
 * This file is part of My Accounts.
 *
 * My Accounts 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 Accounts 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 Accounts.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.amphiprion.myaccount;

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

import org.amphiprion.myaccount.database.CategoryDao;
import org.amphiprion.myaccount.database.entity.Category;
import org.amphiprion.myaccount.view.CategorySummaryView;
import org.amphiprion.myaccounts.R;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.LinearLayout;
import android.widget.TextView;

/**
 * This activity manage the tags.
 * 
 * @author amphiprion
 * 
 */
public class CategoryList extends Activity {
  /** The current category for context menu. */
  private Category current;

  /**
   * {@inheritDoc}
   * 
   * @see android.app.Activity#onCreate(android.os.Bundle)
   */
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.category_list);

    buildCategoryList();
  }

  /**
   * {@inheritDoc}
   * 
   * @see android.app.Activity#onPrepareOptionsMenu(android.view.Menu)
   */
  @Override
  public boolean onPrepareOptionsMenu(Menu menu) {
    menu.clear();

    MenuItem addAccount = menu.add(0, ApplicationConstants.MENU_ID_ADD_CATEGORY, 1, R.string.add_category);
    addAccount.setIcon(android.R.drawable.ic_menu_add);
    return true;
  }

  /**
   * {@inheritDoc}
   * 
   * @see android.app.Activity#onOptionsItemSelected(android.view.MenuItem)
   */
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (item.getItemId() == ApplicationConstants.MENU_ID_ADD_CATEGORY) {
      Intent i = new Intent(this, EditCategory.class);
      // i.putExtra("CATEGORY", category);
      startActivityForResult(i, ApplicationConstants.ACTIVITY_RETURN_CREATE_CATEGORY);
    }
    return true;
  }

  /**
   * {@inheritDoc}
   * 
   * @see android.app.Activity#onActivityResult(int, int,
   *      android.content.Intent)
   */
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == RESULT_OK) {
      if (requestCode == ApplicationConstants.ACTIVITY_RETURN_CREATE_CATEGORY) {
        Category category = (Category) data.getExtras().get("CATEGORY");
        CategoryDao.getInstance(this).createCategory(category);
        buildCategoryList();
      } else if (requestCode == ApplicationConstants.ACTIVITY_RETURN_EDIT_CATEGORY) {
        Category category = (Category) data.getExtras().get("CATEGORY");
        CategoryDao.getInstance(this).updateCategory(category);
        buildCategoryList();
      }
    }
  }

  /**
   * Build the category list.
   */
  private void buildCategoryList() {
    List<Category> categories = new ArrayList<Category>();

    LinearLayout ln = (LinearLayout) findViewById(R.id.category_list);
    ln.removeAllViews();

    categories.addAll(CategoryDao.getInstance(this).getCategories());

    for (Category c : categories) {
      CategorySummaryView view = new CategorySummaryView(this, c);
      view.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
          edit(((CategorySummaryView) v).getCategory());
        }
      });

      view.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
          registerForContextMenu(v);
          openContextMenu(v);
          unregisterForContextMenu(v);
          return true;
        }
      });

      ln.addView(view);
    }
    if (categories.isEmpty()) {
      TextView tv = new TextView(this);
      tv.setText(R.string.empty_category_list);
      ln.addView(tv);
    }

  }

  /**
   * {@inheritDoc}
   * 
   * @see android.app.Activity#onCreateContextMenu(android.view.ContextMenu,
   *      android.view.View, android.view.ContextMenu.ContextMenuInfo)
   */
  @Override
  public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
    menu.clear();
    if (v instanceof CategorySummaryView) {
      current = ((CategorySummaryView) v).getCategory();
      menu.add(1, ApplicationConstants.MENU_ID_EDIT_CATEGORY, 0, R.string.edit_category_title);
      menu.add(1, ApplicationConstants.MENU_ID_DELETE_CATEGORY, 1, R.string.delete_category_title);
    }
  }

  /**
   * {@inheritDoc}
   * 
   * @see android.app.Activity#onContextItemSelected(android.view.MenuItem)
   */
  @Override
  public boolean onContextItemSelected(MenuItem item) {
    if (item.getItemId() == ApplicationConstants.MENU_ID_EDIT_CATEGORY) {
      edit(current);
    } else if (item.getItemId() == ApplicationConstants.MENU_ID_DELETE_CATEGORY) {
      CategoryDao.getInstance(this).delete(current);
      buildCategoryList();
    }
    return true;
  }

  /**
   * Edit the given category.
   * 
   * @param category
   *            the category to edit
   */
  private void edit(Category category) {
    Intent i = new Intent(this, EditCategory.class);
    i.putExtra("CATEGORY", category);
    startActivityForResult(i, ApplicationConstants.ACTIVITY_RETURN_EDIT_CATEGORY);
  }
}