route_planner.module in Route Planner 6

The Route Planner module create blocks to show a route from any address to a fixed point.

File

route_planner.module

<?php

/**
 * @file
 * The Route Planner module create blocks to show a route from any address
 * to a fixed point.
 */

/**
 * Implements hook_menu().
 */
function route_planner_menu() {
  $items = array();

  // Module settings.
  $items['admin/settings/routeplanner'] = array(
    'title' => 'Route planner settings',
    'description' => 'Route planner settings',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'route_planner_settings_form',
    ),
    'access arguments' => array(
      'access administration pages',
    ),
    'file' => 'route_planner.admin.inc',
    'file path' => drupal_get_path('module', 'route_planner'),
  );
  return $items;
}

/**
 * Implementation of hook_block().
 */
function route_planner_block($op = 'list', $delta = 0, $edit = array()) {
  $blocks = array(
    'route_target' => array(
      'info' => t('Route Planner Address Field'),
      'cache' => BLOCK_NO_CACHE,
    ),
    'map' => array(
      'info' => t('Route Planner Map Display'),
      'cache' => BLOCK_NO_CACHE,
    ),
  );
  switch ($op) {

    // Block listing
    case 'list':
      return $blocks;

    // Block viewing
    case 'view':

      // By default the block subject equals block info
      $block['subject'] = $blocks[$delta]['info'];
      switch ($delta) {
        case 'route_target':
          $block['content'] = route_planner_get_address_form();
          break;
        case 'map':
          $block['content'] = route_planner_map_display();
          break;
      }
      return $block;
  }
}

/**
 * The Address-Form.
 *
 * A form to input a address and get.
 * The driving time and distance will automatically set after clicken the button.
 *
 * @return
 *   The address form.
 */
function route_planner_address_form(&$form_state) {
  $form['start'] = array(
    '#type' => 'textfield',
    '#title' => t('Address'),
    '#default_value' => '',
    '#size' => 20,
  );
  $form['distance'] = array(
    '#type' => 'textfield',
    '#title' => t('Distance'),
    '#default_value' => '0.00',
    '#size' => 20,
    '#disabled' => TRUE,
  );
  $form['time'] = array(
    '#type' => 'textfield',
    '#title' => t('Driving time'),
    '#default_value' => '0.00',
    '#size' => 20,
    '#disabled' => TRUE,
  );
  $form['button'] = array(
    '#type' => 'button',
    '#value' => t('Calculate route'),
    '#attributes' => array(
      'onClick' => 'return Drupal.myRoutePlanner.calcRoute();',
    ),
  );
  return $form;
}

/**
 * Get Address-Form Block
 *
 * Helper function to add several stuff to the Block.
 *
 * @return
 *   The address form.
 */
function route_planner_get_address_form() {

  // Get the address form.
  $output = drupal_get_form('route_planner_address_form');
  return $output;
}

/**
 * Show a Google Map with a POI or a route.
 *
 * @return
 *   HTML output for the map.
 */
function route_planner_map_display() {

  // Add google maps api.
  drupal_set_html_head('<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>');

  // Add some custom javascript to display the map.
  drupal_add_js(drupal_get_path('module', 'route_planner') . '/route_planner.js');
  $address = variable_get('route_planner_address', 'Hamburg, Germany');

  // Set variables from Route Planner settings page.
  drupal_add_js(array(
    'routePlanner' => array(
      'zoomlevel' => intval(variable_get('route_planner_map_zoom', 10)),
      'end' => $address,
    ),
  ), 'setting');

  // Output the map.
  $output = '<div id="map_canvas" style="height:' . check_plain(variable_get('route_planner_map_height', '300px')) . '; width:' . check_plain(variable_get('route_planner_map_width', '100%')) . ';"></div>';
  return $output;
}

Functions

Name	Description
route_planner_address_form	The Address-Form.
route_planner_block	Implementation of hook_block().
route_planner_get_address_form	Get Address-Form Block
route_planner_map_display	Show a Google Map with a POI or a route.
route_planner_menu	Implements hook_menu().