<?php
//vim :set ts=2 sw=2 expandtab enc=utf-8
/**
 * Supa helper plugin
 *
 * @license  GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author   Christoph Linder
 */
// must be run within Dokuwiki
//if(!defined('DOKU_INC')) die();

//require_once(DOKU_INC.'inc/plugin.php');

/**
 */
class helper_plugin_supa extends DokuWiki_Plugin {
  //function helper_plugin_supa(){
  //}

  function getInfo() {
    return array(
      'name'  => 'Supa',
      'author' => 'Christoph Linder',
      'email' => 'hide@address.com',
      'date'  => '2010-01-23',
      'desc'  => 'Easy upload of images from the clipboard (e.g. screenshots) to the media library',
      'url'  => 'http://www.sourceforge.net/projects/supa'
    );
  }

  function getMethods() {
    $result = array();
    $result[] = array(
      'name'  => 'decodeScreenshotFile',
      'desc'  => 'Decodes an uploaded screenshot file so that it is compatible to the "normal" file upload mechanism. Note: parameter &file is a ref to an entry in the $FILES superglobal!',
      'params' => array( '&file' => 'array',
               '&id' => 'string' ),
      'return' => "boolean: success or failure"
    );
     $result[] = array(
      'name'  => 'html_supa_applet',
      'desc'  => 'Paint the Supa applet and the upload controls on the media manager window.',
      'params' => array( 'ns' => 'string',
                 'auth' => 'numeric' )
    );
    return $result;
  }

  //FIXME: do not pass the $_FILES array but separate values
  //FIXME: move this to action.php?
  function decodeScreenshotFile( &$upload_file, &$id ) {
    $filename = $upload_file['tmp_name'];

    // read entire source file
    $fh = fopen( $filename, 'r' );
    $data = fread( $fh, filesize( $filename ) );
    fclose( $fh );

    // write decoded data to destination file
    $decoded = base64_decode( $data );
    if( !$decoded ) {
      msg( "Err: ".$lang['err_decoding'], -1 );
      return false;
    }

    $fh = fopen( $filename, "w" );
    fwrite( $fh, $decoded );
    fclose( $fh );

    // change info of the uploaded file to the decoded values
    clearstatcache();
    $upload_file['type'] = 'image/png';
    $upload_file['size'] = filesize( $filename );
    //echo "sizeeeee: ".filesize( $filename );
    $upload_file['name'] = preg_replace( '/\.supascreenshot$/i', '', $upload_file['name'] );
    $id = preg_replace( '/\.supascreenshot$/i', '', $id );
    return true;
  }

  /*
  function clean( $var ) {
    return trim( $var, "\n\r" );
  }
  */

  function html_supa_applet( $ns, $auth ) {
    global $xyzzy;
    $xyzzy = "x";

    $ext = 'png'; // $this->getConf('imagecodec');
    $supa_classpath = DOKU_BASE."lib/plugins/supa/lib/Supa.jar";
    $default_filename = "screenshot-".date("Y-m-d_H-i-s"). "." .$ext;
    ?>

    <div id="supa__upload" style="display:none">
      <div class="upload">
        <button id="supa__pastebutton" type="button"><?= $this->getLang('label_paste_image') ?></button><br/>
        <div style="border: 1px solid black;">
          <applet name="Supa__Applet"
                  archive="<?=DOKU_BASE."lib/plugins/supa/lib/Supa.jar"?>"
                  code="de.christophlinder.supa.SupaApplet"
                  width="<?=$this->getConf( 'previewwidth' )?>"
                  height="<?=$this->getConf( 'previewheight' )?>">
            <param name="imagecodec" value="png"/>
            <param name="previewscaler" value="<?=$this->getConf('previewscaler')?>"/>
            <param name="encoding" value="base64"/>
            <?=$this->getLang('txt_no_java')?>
          </applet>
        </div>
        <br/>

        <input id="supa__sectok" type="hidden" value="<?=getSecurityToken()?>"/>
        <label for="supa__ns"><?=$this->getLang('prompt_namespace')?>:</label><input id="supa__ns" value="<?=hsc($ns)?>"/><span title="<?=$this->getLang('txt_required_hint')?>"><?=$this->getLang('txt_required')?></span><br/>
        <label for="supa__filename"><?= $this->getLang('prompt_filename')?>:</label><input id="supa__filename" value="<?=$default_filename?>"/><span title="<?=$this->getLang('txt_required_hint')?>"><?=$this->getLang('txt_required')?></span><br/>
        <button id="supa__uploadbutton" type="button"><?= $this->getLang('txt_upload_image') ?></button><br/>
      </div>
    </div>

    <?php
  }

}