easy_social.module

<?php
/**
 * @file
 * This is the file description for Easy Social module.
 * 
 */

/**
 * Implements hook_permission().
 */
function easy_social_permission() {
  return array(
    'administer easy social' => array(
      'title' => t('Administer Easy Social'),
      'description' => t('Manage Easy Social permissions.'),
    ),
  );
}

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

  $items['admin/config/content/easysocial'] = array(
    'title' => 'Easy Social Settings',
    'description' => 'Configure the social buttons and node types',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('admin_config_easy_social'),
    'access arguments' => array('administer easy social'),
  );

  return $items;
}

/**
* Implements hook_variable_info().
*/
function easy_social_variable_info() {
  
  $variables['easysocial_global_typebtn'] = array(
    'title' => t('Easy Social Global Type of Buttons'),
    'default' => 0,
    'group' => 'easysocial',
    'token' => FALSE,
  );
  
  $variables['easysocial_global_social_buttons'] = array(
    'title' => t('Easy Social Global Type of Network Buttons'),
    'default' => array('twitter', 'facebook', 'googleplus','linkedin'),
    'group' => 'easysocial',
    'token' => FALSE,
  );
  
  $variables['easysocial_tt_global_account_via'] = array(
    'title' => t('Easy Social Global Mention Account'),
    'default' => '',
    'group' => 'easysocial',
    'token' => FALSE,
  );
  
  $variables['easysocial_tt_global_account_related'] = array(
    'title' => t('Easy Social Global Related Account'),
    'default' => '',
    'group' => 'easysocial',
    'token' => FALSE,
  );
  
  $variables['easysocial_tt_global_account_description'] = array(
    'title' => t('Easy Social Global Twitter Description'),
    'default' => 'Check it out: !title',
    'group' => 'easysocial',
    'token' => FALSE,
  );
  
  $node_types = node_type_get_types();
  
  foreach ($node_types as $type => $typeobj) {
    
    $variables['easysocial_' . $type . '_override'] = array(
      'title' => t('Easy Social Override Option for type %type', array('%type' => $typeobj->name)),
      'default' => -1,
      'group' => 'easysocial',
      'token' => FALSE,
    );
    
    $variables['easysocial_' . $type . '_typebtn'] = array(
      'title' => t('Easy Social Type of Buttons for %type', array('%type' => $typeobj->name)),
      'default' => -1,
      'group' => 'easysocial',
      'token' => FALSE,
    );
  
    $variables['easysocial_' . $type . '_social_buttons'] = array(
      'title' => t('Easy Social Network Buttons for %type', array('%type' => $typeobj->name)),
      'default' => array(),
      'group' => 'easysocial',
      'token' => FALSE,
    );
    
  }
    
  return $variables;
}
  


function admin_config_easy_social(){
  $form = array();
  
  $form['global_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Global Settings'),
    '#description' => t('Settings available for all content types'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  
  $form['global_settings']['easysocial_global_typebtn'] = array(
    '#type' => 'radios',
    '#title' => t('Type of buttons'),
    '#options' => array(t('Horizontal'), t('Vertical')),
    '#default_value' => variable_get_value('easysocial_global_typebtn'),
  );
  
  $form['global_settings']['easysocial_global_social_buttons'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Social Buttons'),
    '#options' => array('twitter' => 'Twitter', 'facebook' => 'Facebook','googleplus' => 'Google Plus','linkedin' => 'Linked In'),
    '#default_value' => variable_get_value('easysocial_global_social_buttons'),
  );
  
  $form['global_settings']['twitter_global_data'] = array(
    '#type' => 'fieldset',
    '#title' => t('Twitter Info'),
    '#collapsible' => FALSE,
    '#collapsed' => TRUE,
  );
  
  $form['global_settings']['twitter_global_data']['easysocial_tt_global_account_via'] = array(
    '#type' => 'textfield',
    '#title' => t('Mention account'),
    '#size' => 40,
    '#maxlength' => 255,
    '#default_value' => variable_get_value('easysocial_tt_global_account_via'),
  );
  
  $form['global_settings']['twitter_global_data']['easysocial_tt_global_account_related'] = array(
    '#type' => 'textfield',
    '#title' => t('Related account'),
    '#size' => 40,
    '#maxlength' => 255,
    '#default_value' => variable_get_value('easysocial_tt_global_account_related'),
  );
  
  $form['global_settings']['twitter_global_data']['easysocial_tt_global_account_description'] = array(
    '#type' => 'textfield',
    '#title' => t('Related account description'),
    '#size' => 120,
    '#maxlength' => 120,
    '#default_value' => variable_get_value('easysocial_tt_global_account_description'),
    '#description' => 'Use !title for the current page title'
  );
  
  $form['override_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Override Settings by Type'),
    '#description' => t('Settings by content type'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  
  $node_types = node_type_get_types();
     
  foreach ($node_types as $type => $typeobj) {

    $form['override_settings']['easysocial_settings_type_' . $type] = array(
     '#type' => 'fieldset',
     '#title' => t('Custom Settings for %type', array('%type' => $typeobj->name)),
     '#collapsible' => FALSE,
     '#collapsed' => TRUE,
    );

    $form['override_settings']['easysocial_settings_type_' . $type]['easysocial_' . $type . '_override'] = array(
     '#type' => 'checkbox',
     '#title' => t('Override'),
     '#description' => t('Check this option to override the global settings for this type'),
     '#default_value' => variable_get_value('easysocial_' . $type . '_override'),
    );

    $form['override_settings']['easysocial_settings_type_' . $type]['easysocial_' . $type . '_typebtn'] = array(
     '#type' => 'radios',
     '#title' => t('Type of buttons'),
     // '#description' => t('Type of buttons, horizontal or vertical.'),
     '#options' => array(t('Horizontal'), t('Vertical')),
     '#default_value' => variable_get_value('easysocial_' . $type . '_typebtn')
    );

    $form['override_settings']['easysocial_settings_type_' . $type]['easysocial_' . $type . '_social_buttons'] = array(
     '#type' => 'checkboxes',
     '#title' => t('Social Buttons'),
     '#options' => array('twitter' => 'Twitter', 'facebook' => 'Facebook','googleplus' => 'Google Plus','linkedin' => 'Linked In'),
     '#default_value' => variable_get_value('easysocial_' . $type . '_social_buttons'),
    );

  }
  
  $form = system_settings_form($form);
  
  return $form;
}

/**
 * Implements hook_theme().
 */
function easy_social_theme() {
  $theme = array(
    'easy_social_links' => array(
      'template' => 'easy-social-links',
      'variables' => array('social_links' => NULL),
    ),
  );
  return $theme;
}


/**
 * Implements hook_field_extra_fields().
 * The Easy Social available in Manage display page in the content types
 */
function easy_social_field_extra_fields() {
  $extra = array();
  $node_types = node_type_get_types();
  foreach ($node_types as $type => $typeobj){
    $extra['node'][$type] = array(
      'display' => array(
        'easy_social' => array(
          'label' => t('Easy Social'),
          'weight' => 100,
        ),
      ),
    );
  }
  return $extra;
}

/**
 * Implements hook_node_view().
 * Certify to load the buttons in the moment I want
 */
function easy_social_node_view($node, $view_mode, $langcode) {
   
  //Check if this type has a custom setting
  if(variable_get_value('easysocial_' . $node->type . '_override') == 1){
    $type = variable_get_value('easysocial_' . $node->type . '_typebtn');
    $buttons = variable_get_value('easysocial_' . $node->type . '_social_buttons');
  } 
    //Global settings
    else {
      $type = variable_get_value('easysocial_global_typebtn');
      $buttons = variable_get_value('easysocial_global_social_buttons');
  }
  
  //Url to be shared
  $url = url('node/'.$node->nid, array('absolute' => TRUE));
  
  $social_links = array();
  
  //Load Js files and generate respective markups
  foreach ($buttons as $service) {
    if(is_string($service)){
      $data = array(
        'nid' => $node->nid,
        'title' => $node->title
      );
      eval("_easysocial_js_add_{$service}();");
      eval("\$social_links[\$service] = _easysocial_button_{$service}_markup(\$url, \$type, \$data);");
    }
  }
  
  //If at least one button is selected, go on
  if(count($social_links) > 0){
    $node->content['easy_social'] = array(
      '#theme' => 'easy_social_links',
      '#social_links' => $social_links,
      '#weight' => 999
    );
  }
  
}


/**
 * Add external facebook js
 */
function _easysocial_js_add_facebook(){
  drupal_add_js('http://static.ak.fbcdn.net/connect.php/js/FB.Share', 'external');
}

/**
 * Add external twitter js
 */
function _easysocial_js_add_twitter(){
  drupal_add_js('http://platform.twitter.com/widgets.js', 'external');
}

/**
 * Add external googleplus js
 */
function _easysocial_js_add_googleplus(){
  drupal_add_js('https://apis.google.com/js/plusone.js', 'external');
}

/**
 * Add external linkedin js
 */
function _easysocial_js_add_linkedin(){
  drupal_add_js('http://platform.linkedin.com/in.js', 'external');
}

/**
 * Generate the needed markup for the facebook share link
 * @param $url The url to be shared
 * @param $type Generate horizontal or vertical widgets
 * @param $data Actually not used
 * @return the html markup
 */
function _easysocial_button_facebook_markup($url, $type, $data = NULL, $lang = 'en_US'){
  if($type == 0){
    $type_box = 'button_count';
    $markup = <<<FB
      <iframe class="fb-widget" 
      src="http://www.facebook.com/plugins/like.php?href={$url}&amp;locale={$lang}&amp;layout={$type_box}&amp;show_faces=false&amp;width=86&amp;action=like&amp;font=trebuchet+ms&amp;colorscheme=light&amp;height=21" 
      scrolling="no" 
      frameborder="0" 
      style="border:none; overflow:hidden; width:87px; height:21px;" 
      allowTransparency="true"></iframe>
FB;
  } else {
    $type_box = 'box_count';
    $markup = <<<FB
      <iframe class="fb-widget" 
      src="http://www.facebook.com/plugins/like.php?href={$url}&amp;locale={$lang}&amp;layout={$type_box}&amp;show_faces=false&amp;width=450&amp;action=like&amp;font=trebuchet+ms&amp;colorscheme=light&amp;height=21" 
      scrolling="no" 
      frameborder="0" 
      style="border:none; overflow:hidden; width:48px; height:60px;" 
      allowTransparency="true"></iframe>
FB;
  }
  return $markup;
}

/**
 * Generate the needed markup for the twitter share link
 * @param $url The url to be shared
 * @param $type Generate horizontal or vertical widgets
 * @param $data Assoc array with info for the tweet
 * @return the html markup
 */
function _easysocial_button_twitter_markup($url, $type, $data = NULL, $lang = 'en'){
  $type = ($type == 0) ? 'horizontal' : 'vertical';
  
  $account_via = variable_get_value('easysocial_tt_global_account_via');
  $account_related = variable_get_value('easysocial_tt_global_account_related');
  $description = variable_get_value('easysocial_tt_global_account_description');
  $description = str_replace('!title', $data['title'], $description);
  
  $markup = <<<TT
    <a href="http://twitter.com/share" 
    class="twitter-share-button" 
    data-url="{$url}" 
    data-count="{$type}"
    data-lang = "{$lang}"
    data-via="{$account_via}" 
    data-related="{$account_related}" 
    data-text="{$description}">Tweet</a>
TT;
  return $markup;
}

/**
 * Generate the needed markeup for the googleplus share link
 * @param $url The url to be shared
 * @param $type Generate horizontal or vertical widgets
 * @param $data Actually not used
 * @return the html markup
 */
function _easysocial_button_googleplus_markup($url, $type, $data = NULL, $lang = 'en_US'){
  $type = ($type == 0) ? 'medium' : 'tall';
  $markup = <<<GP
    <g:plusone size="{$type}" href="{$url}"></g:plusone>
GP;
    return $markup;
}

/**
 * Generate the needed markeup for the linkedin share link
 * @param $url The url to be shared
 * @param $type Generate horizontal or vertical widgets
 * @param $data Actually not used
 * @return the html markup
 */
function _easysocial_button_linkedin_markup($url, $type, $data = NULL, $lang = 'en_US'){
  $type = ($type == 0) ? 'right' : 'top';
  $markup = <<<LI
    <script type="in/share" data-url="{$url}" data-counter="{$type}"></script>
LI;
    return $markup;
}