addthis.module

<?php
// $Id$

/**
 * @file
 * Stand alone module file to handle AddThis button integration
 */

/**
 * Implementation of hook_perm().
 */
function addthis_perm() {
  $perms[] = 'administer addthis';
  $perms[] = 'view addthis';
  return $perms;
}

/**
 * Implementation of hook_link().
 */
function addthis_link($type, $node=NULL, $teaser = FALSE) {
  $links = array();

  if ($type == 'node' && user_access('view addthis') && $teaser ? variable_get('addthis_display_in_teasers', '0') : variable_get('addthis_display_in_links', '0') ) {
    $links['addthis'] = array(
      'title' => _addthis_create_button($node, $teaser),
      'html' => TRUE,
    );
  }

  return $links;
}
/**
 * Implementation of hook_menu().
 */
function addthis_menu() {
  $items = array();

  $items[] = array(
    'path'                 => 'admin/settings/addthis',
    'title'                => t('AddThis module settings'),
    'description'          => t('Set username and customize look and feel for <a href="http://www.addthis.com/">AddThis</a> button.'),
    'callback'             => 'drupal_get_form',
    'callback arguments'   => array('addthis_admin_settings'),
    'access'               => user_access('administer addthis'),
  );

  return $items;
}

/**
 * Administration settings form.
 *
 * @return
 *   The completed form definition.
 */
function addthis_admin_settings() {
  $form = array();

  $form['addthis_general_settings'] = array(
    '#type'  => 'fieldset',
    '#title' => t('General settings'),
  );
  $form['addthis_general_settings']['addthis_username'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Username'),
    '#default_value' => variable_get('addthis_username', 'my-username'),
    '#description'   => t('Your username for <a href="http://www.addthis.com/">addthis.com</a>. Example: my-username'),
  );
  $form['addthis_general_settings']['addthis_display_in_links'] = array(
    '#type'          => 'checkbox',
    '#title'         => t('Display on node pages'),
    '#default_value' => variable_get('addthis_display_in_links', '0'),
    '#description'   => t('Display an AddThis button always on a node page\'s links section.'),
  );
  $form['addthis_general_settings']['addthis_display_in_teasers'] = array(
    '#type'          => 'checkbox',
    '#title'         => t('Display in node teasers'),
    '#default_value' => variable_get('addthis_display_in_teasers', '0'),
    '#description'   => t('Display an AddThis button in the node teasers.'),
  );

  $form['addthis_button_settings'] = array(
    '#type'         => 'fieldset',
    '#title'        => t('Button image settings'),
    '#collapsible'  => TRUE,
    '#collapsed'    => TRUE,
  );
  $form['addthis_button_settings']['addthis_image'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Button image url'),
    '#default_value' => variable_get('addthis_image', 'http://s9.addthis.com/button1-share.gif'),
    '#description'   => t('URL for small image in the button. Example: http://s9.addthis.com/button1-share.gif'),
  );
  $form['addthis_button_settings']['addthis_image_width'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Button image width'),
    '#default_value' => variable_get('addthis_image_width', '125'),
    '#description'   => t('Width for button image. Example: 125'),
  );
  $form['addthis_button_settings']['addthis_image_height'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Button image height'),
    '#default_value' => variable_get('addthis_image_height', '16'),
    '#description'   => t('Height for button image. Example: 16'),
  );
  $form['addthis_button_settings']['addthis_image_attributes'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Button image HTML attributes'),
    '#default_value' => variable_get('addthis_image_attributes', 'alt=""'),
    '#description'   => t('Extra HTML attributes for img tag. Example: alt=""'),
  );

  $form['addthis_widget_settings'] = array(
    '#type'         => 'fieldset',
    '#title'        => t('Widget settings'),
    '#collapsible'  => TRUE,
    '#collapsed'    => TRUE,
  );
  $form['addthis_widget_settings']['addthis_logo'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Logo url'),
    '#default_value' => variable_get('addthis_logo', 'http://www.addthis.com/images/yourlogo.png'),
    '#description'   => t('The logo to display on the popup window (about 200x50 pixels). The popup window is show when the user selects the \'More\' choice. Example: http://www.your-website.com/img/mylogo.gif'),
  );
  $form['addthis_widget_settings']['addthis_logo_background'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Logo background color'),
    '#default_value' => variable_get('addthis_logo_background', 'EFEFFF'),
    '#description'   => t('The color to use as a background around the logo in the popup. Example: EFEFEF'),
  );
  $form['addthis_widget_settings']['addthis_logo_color'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Logo text color'),
    '#default_value' => variable_get('addthis_logo_color', '666699'),
    '#description'   => t('The color to use for the text next to the logo in the popup. Example: 666666'),
  );
  $form['addthis_widget_settings']['addthis_brand'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Brand text'),
    '#default_value' => variable_get('addthis_brand', 'Your Site'),
    '#description'   => t('The brand name to display in the drop-down (top right). Example: My Website'),
  );
  $form['addthis_widget_settings']['addthis_options'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Options'),
    '#default_value' => variable_get('addthis_options', 'favorites, email, digg, delicious, myspace, facebook, google, live, more'),
    '#description'   => t('A comma-separated ordered list of options to include in the drop-down. Example: favorites, email, digg, delicious, more<br/>Currently supported options:<br/>
	delicious, digg, email, favorites, facebook, fark, furl, google, live, myweb, myspace, newsvine, reddit, slashdot, stumbleupon, technorati, twitter, more'),
  );
  $form['addthis_widget_settings']['addthis_offset_top'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Offset top'),
    '#default_value' => variable_get('addthis_offset_top', '2'),
    '#description'   => t('Vertical offset for the drop-down window (in pixels). Example: 2'),
  );
  $form['addthis_widget_settings']['addthis_offset_left'] = array(
    '#type'          => 'textfield',
    '#title'         => t('Offset top'),
    '#default_value' => variable_get('addthis_offset_left', '2'),
    '#description'   => t('Horizontal offset for the drop-down window (in pixels). Example: 2'),
  );
  return system_settings_form($form);
}

/**
 * Implementation of hook_block().
 */
function addthis_block($op = 'list', $delta = 0) {
  if ($op == 'list') {
    $blocks[0]['info'] = t('AddThis button');
    return $blocks;
  }
  else if ($op == 'view' && user_access('view addthis')) {
    $block['subject'] = t('AddThis');
    $block['content'] = _addthis_create_button();
    return $block;
  }
}

/**
 * Internal function to generate code for AddThis button
 *
 * @return
 *   String containing html code for the button
 */
function _addthis_create_button($node=NULL, $teaser = FALSE) {
  global $_addthis_counter;
  $_addthis_counter++;
  if ($_addthis_counter == 1) {
      drupal_add_css((drupal_get_path('module', 'addthis') .'/addthis.css'));
      drupal_add_js(sprintf('
	    addthis_pub = \'%s\';
	    addthis_logo = \'%s\';
	    addthis_logo_background = \'%s\';
	    addthis_logo_color = \'%s\';
	    addthis_brand = \'%s\';
	    addthis_options = \'%s\';
	    addthis_offset_top = \'%d\';
	    addthis_offset_left = \'%d\';
	',
        variable_get('addthis_user', 'my-username'),
        variable_get('addthis_logo', 'http://www.addthis.com/images/yourlogo.png'),
        variable_get('addthis_logo_background', 'EFEFFF'),
        variable_get('addthis_logo_color', '666699'),
        variable_get('addthis_brand', 'Your Site'),
        variable_get('addthis_options', 'favorites, email, digg, delicious, myspace, facebook, google, live, more'),
        variable_get('addthis_offset_top', '2'),
        variable_get('addthis_offset_left', '2')
      ), 'inline');
  }

  return ( sprintf('
    <div class="addthis"><a href="http://www.addthis.com/bookmark.php"
      onmouseover="return addthis_open(this, \'\', \'%s\', \'%s\')"
      onmouseout="addthis_close()"
      onclick="return addthis_sendto()"><img src="%s" width="%d" height="%d" %s /></a></div>
    <script type="text/javascript" src="http://s7.addthis.com/js/152/addthis_widget.js"></script>
    ',
    $teaser ? url('node/'. $node->nid, NULL, NULL, TRUE) : '[URL]',
    $teaser ? addslashes($node->title) : '[TITLE]',
    variable_get('addthis_image', 'http://s9.addthis.com/button1-share.gif'),
    variable_get('addthis_image_width', '125'),
    variable_get('addthis_image_height', '16'),
    variable_get('addthis_image_attributes', 'alt=""')
  ));
}