com.github.riotopsys.shoppinglist.activity.ListItemEdit.java Source code

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Here is the source code for com.github.riotopsys.shoppinglist.activity.ListItemEdit.java

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/**
 * Copyright 2012 C. A. Fitzgerald
 *
 *  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.github.riotopsys.shoppinglist.activity;

import java.sql.SQLException;
import java.util.UUID;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;
import android.widget.Toast;

import com.github.riotopsys.shoppinglist.AppKeys;
import com.github.riotopsys.shoppinglist.R;
import com.github.riotopsys.shoppinglist.model.DatabaseHelper;
import com.github.riotopsys.shoppinglist.model.ShoppingList;
import com.github.riotopsys.shoppinglist.model.ShoppingListItem;
import com.j256.ormlite.android.apptools.OpenHelperManager;

public class ListItemEdit extends Activity implements OnClickListener, OnEditorActionListener {

    private ShoppingListItem mItem;
    private ShoppingList mList;
    private TextView mEditName;
    private TextView mEditQty;

    private boolean mEditMode;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list_item_edit);
        getActionBar().setDisplayHomeAsUpEnabled(true);

        UUID uuidList = (UUID) getIntent().getSerializableExtra(AppKeys.LIST_KEY);
        DatabaseHelper databaseHelper = OpenHelperManager.getHelper(this, DatabaseHelper.class);
        try {
            mList = databaseHelper.getShoppingList(uuidList);

            mEditName = (TextView) findViewById(R.id.edit_name);
            mEditQty = (TextView) findViewById(R.id.edit_qty);

            mEditQty.setOnEditorActionListener(this);

            findViewById(R.id.button_cancel).setOnClickListener(this);
            findViewById(R.id.button_done).setOnClickListener(this);

            mEditMode = getIntent().hasExtra(AppKeys.LIST_ITEM_KEY);

            if (mEditMode) {
                UUID uuidItem = (UUID) getIntent().getSerializableExtra(AppKeys.LIST_ITEM_KEY);
                mItem = databaseHelper.getShoppingListItem(uuidItem);

                mEditName.setText(mItem.getName());
                mEditQty.setText(Integer.toString(mItem.getQuantity()));
            }

        } catch (SQLException e) {
            throw new RuntimeException(e);
        } finally {
            OpenHelperManager.releaseHelper();
        }

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        if (mEditMode) {
            getMenuInflater().inflate(R.menu.activity_list_item_edit, menu);
        }
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            NavUtils.navigateUpFromSameTask(this);
            return true;
        case R.id.menu_delete:
            mList.removeItem(this, mItem);
            NavUtils.navigateUpFromSameTask(this);
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.button_cancel:
            finish();
            break;
        case R.id.button_done:
            makeChange(v);
            break;
        }

    }

    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        if (actionId == EditorInfo.IME_ACTION_DONE) {
            makeChange(v);
            return true;
        }
        return false;
    }

    private void makeChange(View v) {
        String name = mEditName.getText().toString();
        if (!name.equals("")) {
            if (!mEditMode) {
                mItem = mList.createItem(this);
            }

            mItem.setName(v.getContext(), name);
            try {
                mItem.setQuantity(v.getContext(), Integer.parseInt(mEditQty.getText().toString()));
            } catch (NumberFormatException e) {
                mItem.setQuantity(v.getContext(), 1);
            }
            finish();
        } else {
            Toast.makeText(getBaseContext(), R.string.name_reqd, Toast.LENGTH_SHORT).show();
        }
    }

}