<?php
// $Id: swftools_simpleviewer.module,v 1.1.2.23 2011-02-12 21:28:43 stuartgreenfield Exp $

/**
 * @file
 * Enables SWF Tools support for SimpleViewer.
 */

/**
 * Implementation of hook_swftools_methods().
 */
function swftools_simpleviewer_swftools_methods() {
  
  $simpleviewer = array(
    'module'      => 'swftools_simpleviewer',
    'title'       => t('SimpleViewer'),
    'download'    => 'http://www.simpleviewer.net/simpleviewer',
    'width'       => 700,
    'height'      => 600,
    'library'     => swftools_get_library('simpleviewer') . '/simpleviewer.swf',
    'profile'     => array(
      'path' => 'simpleviewer',
      'settings' => array('swftools_simpleviewer'),
      'file' => 'swftools_simpleviewer.admin.inc',
      'page argument' => 'swftools_simpleviewer_profile_form',
    ),
  );
  
  $methods['image_list']['simpleviewer'] = $simpleviewer;
  
  return $methods;

}


/**
 * Implementation of hook_menu().
 */
function swftools_simpleviewer_menu() {
  
  $items['admin/settings/swftools/simpleviewer'] = array(
    'title' => 'SimpleViewer',
    'description' => 'Settings for ' . l('SimpleViewer', 'http://www.simpleviewer.net/simpleviewer') . '.',
    'weight' => 1,
    'access arguments' => array('administer flash'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('swftools_simpleviewer_admin_form'),
    'file' => 'swftools_simpleviewer.admin.inc',
  );

  return $items;

}


/**
 * Implementation of hook_swftools_preprocess_[player]().
 */
function swftools_simpleviewer_swftools_preprocess_simpleviewer(&$data) {
  
  // Get array of simpleviewer settings
  $saved_settings = _swftools_simpleviewer_vars($data['othervars']['profile']);
  
  // Combine user supplied values and defaults, letting user values dominate
  $data['flashvars'] = array_merge($saved_settings['swf'], $data['flashvars']);
  
  // Attach file url of the content to display to flashvars
  $data['flashvars']['galleryURL'] = $data['othervars']['file_url'];

}


/**
 * Implementation of hook_swftools_playlist().
 */
function swftools_simpleviewer_swftools_playlist_simpleviewer(&$data) {
  
  // Get array of simpleviewer settings
  $saved_settings = _swftools_simpleviewer_vars($data['othervars']['profile']);

  // Extract any relevant xml settings from the $data['othervars'] array
  $user_xml = array_intersect_key($data['othervars'], $saved_settings['xml']);
  
  // Merge user defined xml parameters with default parameters
  $xml_vars = array_merge($saved_settings['xml'], $user_xml);
  
  // Extract any relevant flickr settings from the $data['othervars'] array
  $user_flickr = array_intersect_key($data['othervars'], $saved_settings['flickr']);

  // Merge user defined flickr parameters with default parameters
  $flickr_vars = array_merge($saved_settings['flickr'], $user_flickr);  
  
  // If useFlickr is true then add the flickr settings to the array of xml parameters
  if ($flickr_vars['useFlickr'] == 'true' || $flickr_vars['useFlickr'] == 1) {
    
    // Set useFlickr 'true'
    $xml_vars['useFlickr'] = 'true';
    
    // If a username was specified include this as flickrUserName
    if ($flickr_vars['flickrUserName']) {
      $xml_vars['flickrUserName'] = $flickr_vars['flickrUserName'];
    }
    
    // If flickrTags is not set, but tags is, then use tags
    if (!$flickr_vars['flickrTags'] && isset($data['othervars']['tags']) && $data['othervars']['tags']) {
      $flickr_vars['flickrTags'] = $data['othervars']['tags'];
    }
  
    // TODO: Could we convert user_id to flickrUserName?
    
    // If tags were specified include them as flickrTags
    if ($flickr_vars['flickrTags']) {
      $xml_vars['flickrTags'] = $flickr_vars['flickrTags'];
    }
    
  }
  
  dsm($xml_vars);
  
  // Put xml_vars and base in to the header array so the xml themer can access them
  $data['othervars']['playlist_data']['header']['xml_vars'] = $xml_vars;
  $data['othervars']['playlist_data']['header']['base'] = $data['params']['base'];
  
  // Initialise a string to contain the elements
  $xml = '';
  
  // Iterate over the playlist to build elements xml
  if ($data['othervars']['playlist_data']['playlist']) {
    foreach ($data['othervars']['playlist_data']['playlist'] AS $track => $details) {
      $xml .= theme('swftools_simpleviewer_playlist_element', $details, $saved_settings['imagecache']['imagecache'] == SWFTOOLS_UNDEFINED ? '' : $saved_settings['imagecache']['imagecache']);
    }
  }
  
  // Add xml wrapper around the elements
  $xml = theme('swftools_simpleviewer_playlist_wrapper', $data['othervars']['playlist_data']['header'], $xml);
  
  // Return the resulting xml
  return $xml;
  
}


/**
 * Implementation of hook_theme().
 */
function swftools_simpleviewer_theme() {
  return array(
    'swftools_simpleviewer_playlist_element' => array(
      'template' => 'swftools-simpleviewer-playlist-element',
      'arguments' => array('element' => NULL, 'imagecache' => NULL),
    ),
    'swftools_simpleviewer_playlist_wrapper' => array(
      'template' => 'swftools-simpleviewer-playlist-wrapper',
      'arguments' => array('header' => NULL, 'xml' => NULL),
    ),
  );
}


/**
 * Return an array of default settings for the admin page and player configuration
 */
function _swftools_simpleviewer_settings($profile) {
  
  $defaults['appearance'] = array(
    'width' => 700,
    'height' => 600,
    'maxImageWidth' => 480,
    'maxImageHeight' => 480,
    'frameWidth' => 20,
    'thumbPosition' => 'LEFT',
    'thumbColumns' => 3,
    'thumbRows' => 4,
    'showOpenButton' => 'true',
    'showFullScreenButton' => 'true',
    'galleryStyle' => 'MODERN',
    'textColor' => '#FFFFFF',
    'frameColor' => '#FFFFFF',
  );
  
  $defaults['flickr'] = array(
    'useFlickr' => 0,
    'flickrUserName' => '',
    'flickrTags' => '',
  );
  
  $defaults['imagecache'] = array(
    'imagecache' => SWFTOOLS_UNDEFINED,
  );
  
  // Retrieve settings from database, if available
  $settings = swftools_variable_get('swftools_simpleviewer', $defaults, $profile);
  
  // Return resulting defaults
  return $settings;

}


/**
 * Remap values from the settings form to the format needed to build player output.
 */
function _swftools_simpleviewer_vars($profile) {

  // Cache this
  static $cache = array();
  
  // If profile is not set then we need a name to cache it
  $_profile = $profile ? $profile : SWFTOOLS_UNDEFINED;
  
  // If values not already populated then get them
  if (!isset($cache[$_profile])) {
    
    // Get current defaults
    $settings = _swftools_simpleviewer_settings($profile);  
    
    // Attach height and width
    $cache[$_profile]['swf'] = array(
      'width' => $settings['appearance']['width'],
      'height' => $settings['appearance']['height'],
    );
    
    // Don't attach swf appearance settings to xml
    unset($settings['appearance']['swf']);

    // Attach remaining appearance variables to xml
    $cache[$_profile]['xml'] = $settings['appearance'];
    
    // Attach imagecache settings
    $cache[$_profile]['imagecache'] = $settings['imagecache'];
    
    // Attach flickr settings
    $cache[$_profile]['flickr'] = $settings['flickr'];

  }

  // Return remapped variables
  return $cache[$_profile];
  
}