modules/geomap/geomap.module

<?php

/**
 * @file
 * Render a google map based on locations defined in page by geo microformats.  
 * 
 * GEOMAP creates a simple google map block that will display a map using geo microformat information
 * embedded in the current page. If no geo information exists, no map will be displayed. 
 * 
 * This module has been designed to work with the Geonames_cck module, which renders locations in GEO microformat.  
 * 
 * More information on GEO Microformats: http://microformats.org/wiki/geo
 * 
 * Our implementation of the geo microformat may need a little tweaking. The Operator module in Firefox
 * complains about our default geo tags because we dont actually display the lat and long. Since this 
 * module was developed, the geo microformat has evolved a bit, and there are now more human friendly vesions
 * of the format. 
 * 
 * TODO: Update geo microformat rendering 
 * 
 * 
 */
/**
 * implementation of hook_menu()
 *
 */
function geomap_menu($may_cache) {
  if ($may_cache) {
    $items[] = array(
      'path' => 'admin/settings/geomap',
      'title' => t('Geomap settings'),
      'callback' => 'drupal_get_form',
      'callback arguments' => 'geomap_admin_form',
      'access' => user_access('administer site configuration'),
      'type' => MENU_NORMAL_ITEM, // optional
    );
  }
  return $items;
}

/**
 * implementaion of hook_block()
 *
 */
function geomap_block($op = 'list', $delta = 0, $edit = array()) {
  switch ($op) {
    case "list":
      $blocks['map'] = array('info' => t('Geo Microformat Googlemap'));
      return $blocks;
    case "configure":
      break;
    case "save":
      break;
    case "view":
      $block = array('subject' => t('geo map'), 'content' => theme('geomap', $delta)); 
      return $block;
  } 
} 

/**
 * Create a map div. 
 * 
 * The Javascript will use this div to render tha map. 
 * This will be empty if no geo microformats exist on the current page.
 * 
 * @param $delta If more than one map needs to be displayed add an identifier
 * @ingroup themeable
 * @return Map div
 */
function theme_geomap($delta='') {
  if ($google_key = variable_get('googlemaps_key', '')) {
    drupal_set_html_head('<script type="text/javascript" src="http://maps.google.com/maps?file=api&amp;v=2&amp;key='. $google_key .'" ></script>');
    drupal_add_js(drupal_get_path('module', 'geomap') .'/jquery.googlemaps.js', 'module'); 
    drupal_add_js(drupal_get_path('module', 'geomap') .'/Clusterer2.js', 'module');
    drupal_add_css(drupal_get_path('module', 'geomap') .'/geomap.css', 'module');
    //TODO: Allow a different ID one day (use delta)
    $mapid = 'map';
    $output .= '<div id="'. $mapid .'" class="googlemap googlemap-'. $delta .'"></div>';
    $GLOBALS['geomap'] = true;
  }
  else {
    if (user_access('administer site configuration')) {
      $output = l(t('No geomap googleapi key'), 'admin/settings/geomap'); 
    }
  }
  return $output;
}

/**
 * Determine whether or not the geomap has been rendered on this page. 
 *
 * @return boolean True if map has been rendered. 
 */
function geomap_rendered(){
  return $GLOBALS['geomap'];
}


/**
 * Admin form
 * 
 * @ingroup forms
 */
function geomap_admin_form() {
  $form['googlemaps_key'] = array(
    '#type' => 'textfield',        
    '#default_value' => variable_get('googlemaps_key', ''),
    '#title' => t('Google key'),    
  );
  return system_settings_form($form);
}


// Thats it!. The rest of the magic is in the Javascript 
1	<?php
2
3	/**
4	* @file
5	* Render a google map based on locations defined in page by geo microformats.
6	*
7	* GEOMAP creates a simple google map block that will display a map using geo microformat information
8	* embedded in the current page. If no geo information exists, no map will be displayed.
9	*
10	* This module has been designed to work with the Geonames_cck module, which renders locations in GEO microformat.
11	*
12	* More information on GEO Microformats: http://microformats.org/wiki/geo
13	*
14	* Our implementation of the geo microformat may need a little tweaking. The Operator module in Firefox
15	* complains about our default geo tags because we dont actually display the lat and long. Since this
16	* module was developed, the geo microformat has evolved a bit, and there are now more human friendly vesions
17	* of the format.
18	*
19	* TODO: Update geo microformat rendering
20	*
21	*
22	*/
23	/**
24	* implementation of hook_menu()
25	*
26	*/
27	function geomap_menu($may_cache) {
28	if ($may_cache) {
29	$items[] = array(
30	'path' => 'admin/settings/geomap',
31	'title' => t('Geomap settings'),
32	'callback' => 'drupal_get_form',
33	'callback arguments' => 'geomap_admin_form',
34	'access' => user_access('administer site configuration'),
35	'type' => MENU_NORMAL_ITEM, // optional
36	);
37	}
38	return $items;
39	}
40
41	/**
42	* implementaion of hook_block()
43	*
44	*/
45	function geomap_block($op = 'list', $delta = 0, $edit = array()) {
46	switch ($op) {
47	case "list":
48	$blocks['map'] = array('info' => t('Geo Microformat Googlemap'));
49	return $blocks;
50	case "configure":
51	break;
52	case "save":
53	break;
54	case "view":
55	$block = array('subject' => t('geo map'), 'content' => theme('geomap', $delta));
56	return $block;
57	}
58	}
59
60	/**
61	* Create a map div.
62	*
63	* The Javascript will use this div to render tha map.
64	* This will be empty if no geo microformats exist on the current page.
65	*
66	* @param $delta If more than one map needs to be displayed add an identifier
67	* @ingroup themeable
68	* @return Map div
69	*/
70	function theme_geomap($delta='') {
71	if ($google_key = variable_get('googlemaps_key', '')) {
72	drupal_set_html_head('<script type="text/javascript" src="http://maps.google.com/maps?file=api&v=2&key='. $google_key .'" ></script>');
73	drupal_add_js(drupal_get_path('module', 'geomap') .'/jquery.googlemaps.js', 'module');
74	drupal_add_js(drupal_get_path('module', 'geomap') .'/Clusterer2.js', 'module');
75	drupal_add_css(drupal_get_path('module', 'geomap') .'/geomap.css', 'module');
76	//TODO: Allow a different ID one day (use delta)
77	$mapid = 'map';
78	$output .= '<div id="'. $mapid .'" class="googlemap googlemap-'. $delta .'"></div>';
79	$GLOBALS['geomap'] = true;
80	}
81	else {
82	if (user_access('administer site configuration')) {
83	$output = l(t('No geomap googleapi key'), 'admin/settings/geomap');
84	}
85	}
86	return $output;
87	}
88
89	/**
90	* Determine whether or not the geomap has been rendered on this page.
91	*
92	* @return boolean True if map has been rendered.
93	*/
94	function geomap_rendered(){
95	return $GLOBALS['geomap'];
96	}
97
98
99
100	/**
101	* Admin form
102	*
103	* @ingroup forms
104	*/
105	function geomap_admin_form() {
106	$form['googlemaps_key'] = array(
107	'#type' => 'textfield',
108	'#default_value' => variable_get('googlemaps_key', ''),
109	'#title' => t('Google key'),
110	);
111	return system_settings_form($form);
112	}
113
114
115
116
117	// Thats it!. The rest of the magic is in the Javascript