plugins/gallery/functions.php
author Dan Fuhry <dan@enanocms.org>
Sat, 21 Aug 2010 23:25:41 -0400 (2010-08-22)
changeset 41 0944c9354e9c
parent 38 512951548faa
child 42 7c6e2e97aa08
permissions -rw-r--r--
Tagged release so that we can use a separate download for the upcoming revision which will only support 1.1.8 trunk.
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<?php
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/*
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 * Snapr
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 * Version 0.1 beta 1
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 * Copyright (C) 2007 Dan Fuhry
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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/**
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 * Generates a random filename for Snapr images.
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 * @param int $length Optional - length of filename
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 * @return string
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 */
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function gallery_make_filename($length = 24)
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{
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  $valid_chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
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  $valid_chars = enano_str_split($valid_chars);
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  $ret = '';
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  for ( $i = 0; $i < $length; $i++ )
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  {
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    $ret .= $valid_chars[mt_rand(0, count($valid_chars)-1)];
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  }
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  return $ret;
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}
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/**
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 * Returns the extension of a file.
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 * @param string file
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 * @return string
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 */
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function get_file_extension($file)
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{
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  return substr($file, ( strrpos($file, '.') + 1 ));
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}
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/**
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 * For a given image ID, return the folder hierarchy.
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 * @param int The image ID
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 * @return array
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 */
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function gallery_imgid_to_folder($img_id)
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{
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  global $db, $session, $paths, $template, $plugins; // Common objects
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  if ( !is_int($img_id) )
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    return array();
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  $img_id = strval($img_id);
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  $ret = array();
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  $sanity = 0;
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  $sanity_stack = array();
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  while(true)
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  {
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    $sanity++;
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    $q = $db->sql_query('SELECT img_title, img_id, folder_parent FROM '.table_prefix.'gallery WHERE img_id=' . $img_id . ';');
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    if ( !$q )
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      $db->_die();
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    $row = $db->fetchrow();
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    if ( !$row )
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    {
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      break;
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    }
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    if ( $sanity > 1 )
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    {
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      $ret[] = $row['img_title'];
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    }
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    if ( !$row['folder_parent'] )
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    {
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      break;
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    }
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    if ( in_array($row['img_id'], $sanity_stack) )
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      return array('Infinite loop');
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    $sanity_stack[] = $row['img_id'];
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    $img_id = $row['folder_parent'];
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  }
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  return $ret;
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}
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/**
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 * Generates a hierarchy of Gallery folders.
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 * @return array
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 */
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function gallery_folder_hierarchy()
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{
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  global $db, $session, $paths, $template, $plugins; // Common objects
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  $q = $db->sql_query('SELECT img_id, img_title, folder_parent FROM '.table_prefix.'gallery WHERE is_folder=1');
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  if ( !$q )
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    $db->_die();
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  if ( $db->numrows() < 1 )
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  {
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    return array('_id' => 'NULL');
0
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  }
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  $lookup_table = array();
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  $hier = array('_id' => 'NULL');
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  $orphans = array();
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  $persist_orphans = array();
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  while ( $row = $db->fetchrow() )
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  {
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    if ( !$row['folder_parent'] )
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    {
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      // root-level folder
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      $hier[ $row['img_title'] ] = array('_id' => $row['img_id']);
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      $lookup_table[$row['img_id']] =& $hier[ $row['img_title'] ];
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    }
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    else if ( $row['folder_parent'] && isset($lookup_table[$row['folder_parent']]) )
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    {
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      // child folder, parent is resolved
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      $lookup_table[ $row['folder_parent'] ][ $row['img_title'] ] = array('_id' => $row['img_id']);
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      $lookup_table[ $row['img_id'] ] =& $lookup_table[ $row['folder_parent'] ][ $row['img_title'] ];
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    }
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    else if ( $row['folder_parent'] && !isset($lookup_table[$row['folder_parent']]) )
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    {
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      // child folder, orphan as of yet
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      $orphans[] = $row;
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    }
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  }
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  // Resolve orphans
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  do
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  {
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    $persist_orphans = array();
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    while ( count($orphans) > 0 )
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    {
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      $orphan =& $orphans[ ( count($orphans) - 1 ) ];
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      if ( isset($lookup_table[$orphan['folder_parent']]) )
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      {
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        $lookup_table[ $orphan['folder_parent'] ][ $orphan['img_title'] ] = array('_id' => $orphan['img_id']);
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        $lookup_table[ $orphan['img_id'] ] =& $lookup_table[ $orphan['folder_parent'] ][ $orphan['img_title'] ];
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      }
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      else
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      {
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        $persist_orphans[] = $orphans[ ( count($orphans) - 1 ) ];
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        //echo 'BUG: ' . htmlspecialchars($orphan['img_title']) . ' (' . $orphan['img_id'] . ') is an orphan folder (parent is ' . $orphan['folder_parent'] . '); placing in root<br />';
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        // $hier[ $orphan['img_title'] ] = array();
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        // $lookup_table[$orphan['img_id']] =& $hier[ $orphan['img_title'] ];
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      }
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      unset($orphan, $orphans[ ( count($orphans) - 1 ) ]);
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    }
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    $orphans = $persist_orphans;
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    //die('insanity:<pre>'.print_r($hier,true).print_r($lookup_table,true).print_r($persist_orphans,true).'</pre>');
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  }
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  while ( count($persist_orphans) > 0 );
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  return $hier;
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}
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/**
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 * Generates HTML for a folder selector.
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 * @param string The form field name, defaults to folder_id.
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 * @param bool Whether to auto-select the root or not. Defaults to true.
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 * @return string
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 */
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function gallery_hier_formfield($field_name = 'folder_id', $autosel = true)
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{
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  $hier = gallery_folder_hierarchy();
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  $img_join      = scriptPath . '/images/icons/joinbottom.gif';
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  $img_join_term = scriptPath . '/images/icons/join.gif';
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  $img_line      = scriptPath . '/images/icons/line.gif';
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  $img_empty     = scriptPath . '/images/icons/empty.gif';
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  $html = _gallery_hier_form_inner($hier, '<Root>', $field_name, -1, array(), $img_join, $img_join_term, $img_line, $img_empty, $autosel);
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  return $html;
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}
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// 
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/**
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 * Inner loop for form field generator (needs to call itself recursively)
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 * @access private
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 */
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function _gallery_hier_form_inner($el, $name, $fname, $depth, $depth_img, $img_join, $img_join_term, $img_line, $img_empty, $sel = false)
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{
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  $html = '';
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  foreach ( $depth_img as $sw )
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    $html .= '<img alt="  " src="' . $sw . '" />';
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  $html .= '<label><input ' . ( $sel ? 'checked="checked"' : '' ) . ' type="radio" name="' . $fname . '" value="' . $el['_id'] . '" /> ' . htmlspecialchars($name) . '</label><br />';
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  if ( count($el) > 1 )
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  {
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    // Writing this image logic sucked.
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    $count = 0;
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    foreach ( $el as $key => $el_lower )
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    {
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      $count++;
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      if ( $key == '_id' )
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        continue;
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      $depth_mod = $depth_img;
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      $last = ( $count == count($el) );
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      for ( $i = 0; $i < count($depth_mod); $i++ )
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      {
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        if ( $depth_mod[$i] == $img_join_term || $depth_mod[$i] == $img_empty )
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          $depth_mod[$i] = $img_empty;
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        else
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          $depth_mod[$i] = $img_line;
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      }
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      if ( $last )
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        $depth_mod[] = $img_join_term;
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      else
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        $depth_mod[] = $img_join;
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      $html .= _gallery_hier_form_inner($el_lower, $key, $fname, ( $depth + 1 ), $depth_mod, $img_join, $img_join_term, $img_line, $img_empty);
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    }
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  }
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  return $html;
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}
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/**
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 * Returns an array containing the IDs of all of the given folder ID's children. Recursive function.
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 * @param int ID of folder
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 */
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function gal_fetch_all_children($id)
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{
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  global $db, $session, $paths, $template, $plugins; // Common objects
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  if ( !is_int($id) )
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  {
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    die('not int');
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    return false;
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  }
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  $children = array();
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  $q = $db->sql_query('SELECT img_id,is_folder FROM '.table_prefix.'gallery WHERE folder_parent=' . $id . ';');
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  if ( !$q )
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    $db->_die();
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  if ( $db->numrows() < 1 )
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  {
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    return $children;
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  }
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  $folders = array();
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  while ( $row = $db->fetchrow() )
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  {
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    $children[] = intval($row['img_id']);
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    if ( $row['is_folder'] == 1 )
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      $folders[] = intval($row['img_id']);
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  }
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  foreach ( $folders as $folder )
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  {
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    $grandchildren = gal_fetch_all_children($folder);
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    if ( $grandchildren === false )
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    {
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      return false;
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    }
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    $children = array_merge($children, $grandchildren);
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  }
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  return $children;
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}
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/**
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 * Lists all normal files within a given directory. Recursive function. Can also return the list of directories in the second parameter by reference.
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 * @param string Directory to search
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 * @param array Variable in which to store 
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 * @return array Not multi-depth
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 */
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function gal_dir_recurse($dir, &$dirlist)
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{
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  $dir_handle = opendir($dir);
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  if ( !$dir_handle )
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    return false;
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  $entries = array();
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   288
  $dirlist = array();
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   289
  while ( true )
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  {
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    $file = readdir($dir_handle);
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   292
    if ( !$file )
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   293
      break;
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   294
    if ( $file == '.' || $file == '..' )
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   295
      continue;
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   296
    $file = $dir . '/' . $file;
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    if ( is_dir($file) )
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   298
    {
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   299
      $children = gal_dir_recurse($file, $dirtemp);
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      $dirlist[] = $file;
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   301
      $dirlist = array_merge($dirlist, $dirtemp);
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      $entries = array_merge($entries, $children);
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   303
    }
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   304
    else if ( is_file($file) )
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   305
    {
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   306
      $entries[] = $file;
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   307
    }
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   308
    else
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   309
    {
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      die($file . ' is not a file or directory');
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    }
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  }
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  closedir($dir_handle);
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   314
  return $entries;
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}
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18
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/**
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 * Wrapper for JSON decoding that works on Enano 1.0.x and 1.1.x
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 * @param string JSON datastream...
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 * @return mixed
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 */
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   323
function snapr_json_decode($data)
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diff changeset
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{
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  if ( defined('ENANO_ATLEAST_1_1') )
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   326
  {
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    try
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   328
    {
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   329
      $decoded = enano_json_decode($data);
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    }
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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    catch ( Exception $e )
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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    {
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   333
      $response = array(
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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        'mode' => 'error',
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        'error' => 'Exception in JSON parser.'
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   336
      );
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   337
      die(enano_json_encode($response));
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   338
    }
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   339
  }
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   340
  else
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   341
  {
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   342
    $json = new Services_JSON(SERVICES_JSON_LOOSE_TYPE);
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   343
    $decoded = $json->decode($data);
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   344
  }
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   345
  return ( isset($decoded) ) ? $decoded : false;
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   346
}
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   347
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   348
/**
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   349
 * Wrapper for JSON encoding that works on Enano 1.0.x and 1.1.x
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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 * @param mixed Data to encode
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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 * @return string
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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 */
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   353
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   354
function snapr_json_encode($data)
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   355
{
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   356
  if ( defined('ENANO_ATLEAST_1_1') )
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   357
  {
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   358
    try
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   359
    {
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   360
      $encoded = enano_json_encode($data);
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   361
    }
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   362
    catch ( Exception $e )
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
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diff changeset
   363
    {
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
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diff changeset
   364
      $response = array(
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   365
        'mode' => 'error',
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   366
        'error' => 'Exception in JSON encoder.'
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   367
      );
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   368
      die(enano_json_encode($response));
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   369
    }
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   370
  }
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   371
  else
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
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diff changeset
   372
  {
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   373
    $json = new Services_JSON(SERVICES_JSON_LOOSE_TYPE);
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   374
    $encoded = $json->encode($data);
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   375
  }
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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   376
  return ( isset($encoded) ) ? $encoded : false;
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   377
}
c1c398349651 Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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diff changeset
   378
0
7caf561c50ee Initial population; browser, viewer, uploader, and security are working
Dan
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   379
?>