addtoany.module in AddToAny Share Buttons 6.2

Standalone module file to handle AddToAny button integration

File

addtoany.module

<?php

/**
 * @file
 * Standalone module file to handle AddToAny button integration
 */

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

/**
 * Implementation of hook_link().
 */
function addtoany_link($type, $node = NULL, $teaser = FALSE) {
  $links = array();
  $types = variable_get('addtoany_nodetypes', array());
  $show = !empty($types[$node->type]) && ($teaser && variable_get('addtoany_display_in_teasers', '1') != 0 || !$teaser && variable_get('addtoany_display_in_nodelink', '1') != 0);
  if ($type === 'node' && $show) {
    $links['addtoany'] = array(
      'title' => _addtoany_create_button($node, $teaser),
      'html' => TRUE,
    );
  }
  return $links;
}

/**
 * Implementation of hook_block().
 */
function addtoany_block($op = 'list', $delta = 0) {
  if ($op == 'list') {
    $blocks[0]['info'] = t('AddToAny button');
    return $blocks;
  }
  else {
    if ($op == 'view') {
      $block['subject'] = t('AddToAny');
      $block['content'] = _addtoany_create_button(menu_get_object());
      $block['cache'] = BLOCK_NO_CACHE;

      // Caching issue: http://drupal.org/node/610564
      return $block;
    }
  }
}

/**
 * Implementation of hook_nodeapi().
 */
function addtoany_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
  switch ($op) {
    case 'view':

      // Only show comments on the full non-teasered page
      if (!$a3 && $a4) {
        $types = variable_get('addtoany_nodetypes', array());
        $show = !empty($types[$node->type]) && variable_get('addtoany_display_in_nodecont', '0');
        $weight = variable_get('addtoany_display_weight', 40);
        if ($show) {
          $node->content['addtoany'] = array(
            '#value' => _addtoany_create_button($node, FALSE),
            '#weight' => $weight,
          );
        }
      }
      break;
  }
}

/**
 * Implementation of hook_views_api().
 */
function addtoany_views_api() {
  return array(
    'api' => 2,
    'path' => drupal_get_path('module', 'addtoany') . '/views',
  );
}

/**
 * Implementation of hook_menu().
 */
function addtoany_menu() {
  $items = array();
  $items['admin/settings/addtoany'] = array(
    'title' => t('AddToAny'),
    'description' => t('Settings for your <a href="http://www.addtoany.com/" target="blank">AddToAny</a> Share/Save buttons.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'addtoany_admin_settings',
    ),
    'access arguments' => array(
      'administer addtoany',
    ),
    'file' => 'addtoany.admin.inc',
  );
  return $items;
}

/**
 * Implementation of hook_footer().  Would use drupal_add_js, but external scripts are not well supported
 *
 * @return
 *   String containing JavaScript code to initialize each drop-down menu
 */
function addtoany_footer($main = 0) {
  global $_addtoany_script;
  $javascript = "<script type=\"text/javascript\">\n" . "da2a_html_ready = true;\n" . "function da2a_init(){if(da2a_script_ready){\n" . $_addtoany_script . "}}" . "</script>";
  return $javascript;
}

/**
 * Internal function to create asynchronous load JavaScript after first button, and create the on-ready JS for footer.
 * 
 * @param object $id_num
 * @param object $link_name
 * @param object $link_url
 * @return 
 *   String containing the asynchronous load JavaScript for the first button.
 */
function _addtoany_create_script($id_num, $link_name, $link_url) {
  global $_addtoany_script, $_addtoany_script_init;
  $_addtoany_script .= "a2a_config.linkname='" . check_plain($link_name) . "'; a2a_config.linkurl='" . check_plain($link_url) . "'; a2a.init('page', {target: '#da2a_" . $id_num . "'});\n";
  if (!$_addtoany_script_init) {
    $script_url = $_SERVER['HTTPS'] ? 'https://static.addtoany.com/menu/page.js' : 'http://static.addtoany.com/menu/page.js';
    $javascript_async = "<script type=\"text/javascript\">\n" . "function da2a_script_onready() { da2a_script_ready = true; if(da2a_html_ready) da2a_init(); }\n" . "var a2a_config = a2a_config || {}, da2a_html_ready = da2a_script_ready = false; a2a_config.tracking_callback = ['ready', da2a_script_onready];" . variable_get('addtoany_additional_js', '') . "\n(function(){var a = document.createElement('script');a.type = 'text/javascript';a.async = true;a.src = '" . $script_url . "';var s = document.getElementsByTagName('script')[0];s.parentNode.insertBefore(a, s);})();\n" . "</script>";
  }
  else {
    $javascript_async = "";
  }
  $_addtoany_script_init = TRUE;
  return $javascript_async;
}

/**
 * Internal function to generate code for AddToAny button
 *
 * @return
 *   String containing HTML code for the button
 */
function _addtoany_create_button($node = NULL, $teaser = FALSE) {
  global $_addtoany_counter, $base_path;
  $_addtoany_counter++;
  if ($_addtoany_counter == 1) {
    drupal_add_css(drupal_get_path('module', 'addtoany') . '/addtoany.css');
  }
  $disable_dropdown = variable_get('addtoany_dropdown_disabled', '0');
  if (is_object($node)) {
    $link_name = module_exists('page_title') ? page_title_page_get_title() : $node->title;
    $link_url = url('node/' . $node->nid, array(
      'absolute' => 1,
    ));
  }
  else {

    // Front page
    $link_name = module_exists('page_title') ? page_title_page_get_title() : variable_get('site_name', '');
    $link_url = url('<front>', array(
      'absolute' => 1,
    ));
  }
  $javascript = $disable_dropdown ? '' : _addtoany_create_script($_addtoany_counter, $link_name, $link_url);
  $button_setting = variable_get('addtoany_image', 'share_save_171_16.png|171|16');
  if ($button_setting == "custom") {
    $button_image = variable_get('addtoany_custom_image', '');
    $button_width = '';
    $button_height = '';
  }
  else {
    $button = explode('|', $button_setting);
    $button_filename = $button[0];
    $button_width = ' width="' . $button[1] . '"';
    $button_height = ' height="' . $button[2] . '"';
    $button_image = $base_path . drupal_get_path('module', 'addtoany') . '/images/' . $button_filename;
  }
  return sprintf('
		<a%s href="http://www.addtoany.com/share_save?linkurl=%s&amp;linkname=%s" id="da2a_%s"><img src="%s"%s%s %s/></a>
		%s
		', $disable_dropdown ? '' : ' class="a2a_dd"', rawurlencode($link_url), rawurlencode($link_name), $_addtoany_counter, $button_image, $button_width, $button_height, variable_get('addtoany_image_attributes', 'alt="Share/Save"'), $javascript);
}

Functions

Name	Description
addtoany_block	Implementation of hook_block().
addtoany_footer	Implementation of hook_footer(). Would use drupal_add_js, but external scripts are not well supported
addtoany_link	Implementation of hook_link().
addtoany_menu	Implementation of hook_menu().
addtoany_nodeapi	Implementation of hook_nodeapi().
addtoany_perm	Implementation of hook_perm().
addtoany_views_api	Implementation of hook_views_api().
_addtoany_create_button	Internal function to generate code for AddToAny button
_addtoany_create_script	Internal function to create asynchronous load JavaScript after first button, and create the on-ready JS for footer.