Make simple address geocoding an official part of GMap.

Here's the code involved:

In function gmap_gmap()

      if (isset($map['behavior']['locpick']) && $map['behavior']['locpick']) {
        drupal_add_js($path . 'locpick.js');
        // @CROCUSTOM  Add this line to make the one textbox address work.
        drupal_add_js($path .'address.js');
      }

Then in address.js, comment out every line that sets the address field back to "Enter an address". We want to keep the data in that field so never clear it out, even if they move the marker on the map to correct a bad geocoding. Maybe this could be done with a setting or perhaps just use a different .js file?

Finally, this bit of custom code goes in hook_form_alter() for the form with the address field. It attaches the map to the address field and makes it all work together. It would need to either be generalized to know what field names you're using or require using specific names for the fields. One thing to watch out for is that if you put your field in a fieldset, the fieldset needs to be added to the code as well.

  $map = gmap_parse_macro('[gmap ]');
  $map['id'] = 'loc0';
  $map['zoom'] = 15;
  $map['behavior']['locpick'] = TRUE;

  $form['field_address'][0]['_map'] = array(
    '#type' => 'gmap',
    '#map' => $map['id'],
    '#settings' => $map,
  );
  
  $remap = array(
    'edit-field-latitude-0-value' => array('classes' => array('gmap-locpick_latitude'), 'id' => 'gmap-loc0-locpick_latitude0'),
    'edit-field-longitude-0-value' => array('classes' => array('gmap-locpick_longitude'), 'id' => 'gmap-loc0-locpick_longitude0'),
    'edit-field-address-0-value' => array('classes' => array('gmap-locpick_address'), 'id' => 'gmap-loc0-locpick_address0'),
  );
  
  drupal_add_js(array('gmap_remap_widgets' => $remap), 'setting');
  
  $form['field_latitude'][0]['value']['#map'] = $id;
  gmap_widget_setup($form['field_latitude'][0]['value'], 'locpick_latitude');

  $form['field_longitude'][0]['value']['#map'] = $id;
  gmap_widget_setup($form['field_longitude'][0]['value'], 'locpick_longitude');

  $form['field_address'][0]['value']['#map'] = $id;
  gmap_widget_setup($form['field_address'][0]['value'], 'locpick_address');

@ccheu: It's meant to go in your own module and, no, it can't be just dropped in as is. If you don't know how to use form alters, you should read up on FAPI first.

Michelle