christmas_lights.module in Christmas Lights 7

Main file for the christmas_lights module.

File

christmas_lights.module

<?php

/**
 * @file
 * Main file for the christmas_lights module.
 */

/**
 * Implements hook_menu().
 */
function christmas_lights_menu() {
  $items['admin/config/system/christmas_lights'] = array(
    'title' => 'Chrismas Lights',
    'description' => 'A splendid module with Christmas lights decoration that creates longlasting atmosphere of X-mas for you and the users of your website.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'christmas_lights_settings',
    ),
    'access arguments' => array(
      'administer site configuration',
    ),
  );
  return $items;
}

/**
 * Form builder function for module settings.
 */
function christmas_lights_settings() {
  $settings = variable_get('christmas_lights_settings');
  $start = array(
    'day' => date('j', $settings['start']),
    'month' => date('n', $settings['start']),
    'year' => date('Y', $settings['start']),
  );
  $end = array(
    'day' => date('j', $settings['end']),
    'month' => date('n', $settings['end']),
    'year' => date('Y', $settings['end']),
  );
  $form['enabled'] = array(
    '#type' => 'checkbox',
    '#default_value' => $settings['enabled'],
    '#title' => t('Enable christmas lights'),
  );
  $form['start'] = array(
    '#type' => 'date',
    '#title' => t('Start date'),
    '#default_value' => $start,
    '#description' => t('The date your enable christmas lights'),
    '#required' => TRUE,
  );
  $form['end'] = array(
    '#type' => 'date',
    '#title' => t('Finish date'),
    '#default_value' => $end,
    '#description' => t('The date your disable christmas lights'),
    '#required' => TRUE,
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Save Configuration'),
  );
  return $form;
}

/**
 * Form validation handler for christmas_lights_settings().
 *
 * @see christmas_lights_settings_submit()
 */
function christmas_lights_settings_validate($form, &$form_state) {
  $start = $form_state['values']['start'];
  $end = $form_state['values']['end'];
  $start = mktime(0, 0, 0, $start['month'], $start['day'], $start['year']);
  $end = mktime(0, 0, 0, $end['month'], $end['day'], $end['year']);
  if ($start >= $end) {
    form_set_error('start', t('You must select a valid start date.'));
  }
}

/**
 * Process christmas_lights_settings submissions.
 */
function christmas_lights_settings_submit($form, $form_state) {
  $settings = variable_get('christmas_lights_settings');
  $settings['enabled'] = $form_state['values']['enabled'];
  $start = $form_state['values']['start'];
  $end = $form_state['values']['end'];
  $start = mktime(0, 0, 0, $start['month'], $start['day'], $start['year']);
  $end = mktime(0, 0, 0, $end['month'], $end['day'], $end['year']);
  $settings['start'] = $start;
  $settings['end'] = $end;
  variable_set('christmas_lights_settings', $settings);
  drupal_set_message(t('Configuration saved.'));
}

/**
 * Implements hook_page_build().
 */
function christmas_lights_page_build(&$page) {
  $settings = variable_get('christmas_lights_settings');
  if ($settings['enabled']) {
    if (REQUEST_TIME >= $settings['start'] && REQUEST_TIME <= $settings['end']) {
      drupal_add_css(drupal_get_path('module', 'christmas_lights') . '/css/christmas_lights.css');
      drupal_add_js(drupal_get_path('module', 'christmas_lights') . '/js/christmas_lights.js', array(
        'scope' => 'footer',
      ));
      $page['page_bottom']['christmas_lights']['#markup'] = '<div id="christmas-lights"></div>';
    }
  }
}

Functions

Name	Description
christmas_lights_menu	Implements hook_menu().
christmas_lights_page_build	Implements hook_page_build().
christmas_lights_settings	Form builder function for module settings.
christmas_lights_settings_submit	Process christmas_lights_settings submissions.
christmas_lights_settings_validate	Form validation handler for christmas_lights_settings().