owstech_share.module

<?php

/**
 * @file
 * General trackerless share plugin for Drupal
 * Currently only supports facebook, twitter, gplus, and reddit, this can grow rather easily.
 * For facebook preview information one must populate the open-graph title, description and image fields, 
 * The meta_data module can supply those http://drupal.org/project/metatag
 */

/**
 * Implements hook_help().
 */
function owstech_share($path, $arg) {
  if ($path == 'admin/help#owstech_share') {
    return t('Help for the OWSTech Share module!');
  }
}


/**
 * Implements hook_menu().
 *
 * Basic admin menu for this module.
 */
function owstech_share_menu() {
  $items['admin/config/user-interface/owstech_share'] = array(
    'title' => 'OWSTech Share',
    'description' => '',
    'page callback' => 'drupal_get_form',
    'page arguments' => array( 'owstech_share_admin_form' ),
    'access arguments' => array('administer site configuration'),
    'type' => MENU_NORMAL_ITEM,
  );
  return $items;
}


/**
 * Form builder: Build the settings form for this module.
 */
function owstech_share_admin_form( $form, &$form_state ) {

  /* Setup groups */
  $form['general'] = array(
    '#type' => 'fieldset',
    '#title' => t('General'),
    '#tree' => FALSE,
    '#weight' => 0,
  );

  $form['facebook_fields'] = array(
    '#type' => 'fieldset',
    '#title' => t('Facebook settings'),
    '#tree' => FALSE,
    '#weight' => 1,
  );

  $form['twitter_fields'] = array(
    '#type' => 'fieldset',
    '#title' => t('Twitter settings'),
    '#tree' => FALSE,
    '#weight' => 2,
  );

  $form['googleplus_fields'] = array(
    '#type' => 'fieldset',
    '#title' => t('Google+ settings'),
    '#tree' => FALSE,
    '#weight' => 3,
  );

  $form['reddit_fields'] = array(
    '#type' => 'fieldset',
    '#title' => t('Reddit settings'),
    '#tree' => FALSE,
    '#weight' => 4,
  );

  /* Fields */
  $form['general']['owstech_share_actuator_text'] = array(
    '#type' => 'textfield',
    '#title' => t('Share widget label'),
    '#default_value' => variable_get( 'owstech_share_actuator_text', t('Share +') ),
    '#description' => t('What to label the share widget actuator.'),
  );

  $form['facebook_fields']['owstech_share_include_facebook'] = array(
    '#type' => 'checkbox',
    '#title' => t('Facebook'),
    '#default_value' => variable_get( 'owstech_share_include_facebook', TRUE ),
    '#description' => t('Include Facebook as a share point.'),
  );

  $form['twitter_fields']['owstech_share_include_twitter'] = array(
    '#type' => 'checkbox',
    '#title' => t('Twitter'),
    '#description' => t('Include Twitter as a share point.'),
    '#default_value' => variable_get( 'owstech_share_include_twitter', TRUE ),
  );

  $form['twitter_fields']['owstech_share_tweet_text'] = array(
    '#type' => 'textfield',
    '#title' => t('Tweet text'),
    '#default_value' => variable_get( 'owstech_share_tweet_text', t('[node:title]' ) ),
  );

  $form['googleplus_fields']['owstech_share_include_googleplus'] = array(
    '#type' => 'checkbox',
    '#title' => t('Google +'),
    '#description' => t('Include Google + as a share point.'),
    '#default_value' => variable_get( 'owstech_share_include_googleplus', TRUE ),
  );

  $form['reddit_fields']['owstech_share_include_reddit'] = array(
    '#type' => 'checkbox',
    '#title' => t('Reddit'),
    '#description' => t('Include Reddit as a share point.'),
    '#default_value' => variable_get('owstech_share_include_reddit', TRUE), 
  );

  $form['reddit_fields']['owstech_share_reddit_title'] = array(
    '#type' => 'textfield',
    '#title' => t('Reddit entry title'),
    '#description' => t('Title for Reddit share box.'),
    '#default_value' => variable_get( 'owstech_share_reddit_title', t('[node:title]' ) ),
  );


  return system_settings_form( $form );

}


/**
 * Implements hook_block_info().
 */
function owstech_share_block_info() {
  $blocks = array();
  $blocks['owstech-share'] = array(
    'info' => t('OWSTechShare, a tracking-free, spiffy social media share that aims for simplicity and wont clutter your site with corporate logos.'),
  );
  return $blocks;
}


/**
 * Implements hook_block_view().
 */
function owstech_share_block_view( $which_block = '' ) {
  $variables = array( "hi" => "hihi" );
  switch ( $which_block ) {
    case 'owstech-share':
      $modpath = drupal_get_path('module', 'owstech_share');
      drupal_add_js( $modpath . '/js/owstech_share.js' );
      drupal_add_css( $modpath . '/css/owstech_share.css' );
      $block['content'] = theme('owstech_share', $variables );
    break;
  }
  return $block;
}

/**
 * Implements hook_theme().
 *
 * Defines theme for blocks, in this case owste-share.
 * template = owstech_share.tpl.php
 */
function owstech_share_theme() {
  $theme = array();
  $theme['owstech_share'] = array(
    'template' => 'owstech-share-drawer',
    'path' => drupal_get_path('module', 'owstech_share') . '/templates/',
  );
  return $theme;
}


/**
 * Implements template_preprocess_hook().
 *
 * Let's juggle some variables
 */
function template_preprocess_owstech_share( &$variables ) {  

  global $language, $base_url;

  $node = menu_get_object();
  $nid = $node->nid;

  $t_vars = array(
    "@page_title@" => $node->title,
  );

  $current_path = $base_url . '/' . drupal_get_path_alias( current_path(), $language->language );

  $variables['node_title'] = $node->title;
  $variables['owstech_share_actuator_text'] = variable_get('owstech_share_actuator_text');
  $variables['owstech_share_include_facebook'] = variable_get('owstech_share_include_facebook');
  $variables['owstech_share_include_twitter'] = variable_get('owstech_share_include_twitter');
  $variables['owstech_share_include_googleplus'] = variable_get('owstech_share_include_googleplus');
  $variables['owstech_share_include_reddit'] = variable_get('owstech_share_include_reddit');

  $variables['owstech_share_tweet_text'] = token_replace( variable_get('owstech_share_tweet_text'), array( 'node' => $node ) );
  $variables['owstech_share_reddit_title'] = token_replace( variable_get('owstech_share_reddit_title'), array( 'node' => $node ) );  

  if ( $variables['owstech_share_include_facebook'] ) {
    $variables['share_cta_fb'] = t( "Share @page_title@ on Facebook", $t_vars );
    $variables['share_url_fb'] = 'http://www.facebook.com/share.php?u=' . $current_path;
  }
  if ( $variables['owstech_share_include_twitter']) {
    $variables['share_cta_twitter'] = t( "Tweet @page_title@!", $t_vars );
    $variables['share_url_twitter'] = 'http://twitter.com/intent/tweet?url=' . drupal_encode_path( $current_path ) . '&text=' . $variables['owstech_share_tweet_text'];
  }
  if ( $variables['owstech_share_include_googleplus'] ) {
    $variables['share_cta_googleplus'] = t( "Share @page_title@ on Google +", $t_vars );
    $variables['share_url_googleplus'] = 'https://plus.google.com/share?url=' . $current_path;
  }
  if ( $variables['owstech_share_include_reddit'] ) {
    $variables['share_cta_reddit'] = t( "Reddit @page_title@!", $t_vars );
    $variables['share_url_reddit'] = 'http://www.reddit.com/submit?url=' . $current_path . "&title=" . $variables['owstech_share_reddit_title'];
  }
}