com.enadein.carlogbook.core.SaveUpdateBaseActivity.java Source code

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Here is the source code for com.enadein.carlogbook.core.SaveUpdateBaseActivity.java

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/*
CarLogbook.
Copyright (C) 2014  Eugene Nadein
    
This program 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.
    
This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.enadein.carlogbook.core;

import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.support.v7.app.ActionBar;
import android.view.Menu;
import android.view.MenuInflater;

import com.enadein.carlogbook.R;
import com.enadein.carlogbook.ui.ConfirmDialog;

abstract public class SaveUpdateBaseActivity extends BaseActivity {
    public static final String ID_PARAM = "_id = ?";
    protected int mode = -1;
    protected long id = -1;

    @Override
    public void setContent() {
        setContentView(getContentLayout());
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Bundle params = getIntent().getExtras();
        if (params != null) {
            mode = params.getInt(BaseActivity.MODE_KEY);
            id = params.getLong(BaseActivity.ENTITY_ID);
            populateExtraParams(params);
        }

        ActionBar actionBar = getSupportActionBar();

        if (actionBar != null) {
            actionBar.setHomeButtonEnabled(true);
        }
        postCreate();
        populateEntity();
        postPopulate();
    }

    protected void postPopulate() {

    }

    protected void populateExtraParams(Bundle params) {

    }

    @Override
    public boolean onOptionsItemSelected(android.view.MenuItem item) {

        int action = item.getItemId();

        switch (action) {
        case R.id.action_save: {
            if (validateEntity()) {
                createOrUpdateEntity();
                upToParent();
            }
            break;
        }

        case R.id.action_delete: {
            preDelete();
            break;
        }
        default: {
            return super.onOptionsItemSelected(item);
        }
        }

        return true;
    }

    protected void createOrUpdateEntity() {
        if (mode == PARAM_EDIT) {
            updateEntity();
        } else {
            createEntity();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.save_menu, menu);

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        menu.findItem(R.id.action_delete).setVisible(mode == BaseActivity.PARAM_EDIT);
        return super.onPrepareOptionsMenu(menu);
    }

    protected void upToParent() {
        NavUtils.navigateUpFromSameTask(this);
    }

    protected void populateEntity() {
        if (mode == PARAM_EDIT) {
            populateEditEntity();
        } else {
            populateCreateEntity();
        }
    }

    public void onDialogEvent(int requestCode, int responseCode, Bundle params) {
        if (ConfirmDialog.REQUEST_CODE_CONFIRM == requestCode) {
            deleteEntity();
        }
    }

    protected abstract boolean validateEntity();

    protected abstract void createEntity();

    protected abstract void updateEntity();

    protected abstract void preDelete();

    protected abstract void deleteEntity();

    protected abstract void populateEditEntity();

    protected abstract void populateCreateEntity();

    protected abstract void postCreate();

    protected abstract int getContentLayout();
}