ILIAS Release_3_7_x_branch .rev 46817: content/classes/Media/class.ilObjMediaObject.php Source File

Go to the documentation of this file.
00001 <?php
00002 /*
00003         +-----------------------------------------------------------------------------+
00004         | ILIAS open source                                                           |
00005         +-----------------------------------------------------------------------------+
00006         | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
00007         |                                                                             |
00008         | This program is free software; you can redistribute it and/or               |
00009         | modify it under the terms of the GNU General Public License                 |
00010         | as published by the Free Software Foundation; either version 2              |
00011         | of the License, or (at your option) any later version.                      |
00012         |                                                                             |
00013         | This program is distributed in the hope that it will be useful,             |
00014         | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
00015         | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
00016         | GNU General Public License for more details.                                |
00017         |                                                                             |
00018         | You should have received a copy of the GNU General Public License           |
00019         | along with this program; if not, write to the Free Software                 |
00020         | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
00021         +-----------------------------------------------------------------------------+
00022 */
00023 
00024 define ("IL_MODE_ALIAS", 1);
00025 define ("IL_MODE_OUTPUT", 2);
00026 define ("IL_MODE_FULL", 3);
00027 
00028 require_once("content/classes/Media/class.ilMediaItem.php");
00029 include_once "classes/class.ilObject.php";
00030 
00043 class ilObjMediaObject extends ilObject
00044 {
00045         var $is_alias;
00046         var $origin_id;
00047         var $id;
00048 
00049         var $dom;
00050         var $hier_id;
00051         var $node;
00052         var $mob_node;
00053         var $media_items;
00054         var $contains_int_link;
00055 
00060         function ilObjMediaObject($a_id = 0)
00061         {
00062                 $this->is_alias = false;
00063                 $this->media_items = array();
00064                 $this->contains_int_link = false;
00065                 $this->type = "mob";
00066 //echo "<br>ilObjMediaObject:Constructor:$a_id:";
00067                 parent::ilObject($a_id, false);
00068 
00069                 /*
00070                 if($a_id != 0)
00071                 {
00072                         $this->read();
00073                 }*/
00074 
00075 
00076         }
00077 
00078         function setRefId()
00079         {
00080                 $this->ilias->raiseError("Operation ilObjMedia::setRefId() not allowed.",$this->ilias->error_obj->FATAL);
00081         }
00082 
00083         function getRefId()
00084         {
00085                 $this->ilias->raiseError("Operation ilObjMedia::getRefId() not allowed.",$this->ilias->error_obj->FATAL);
00086         }
00087 
00088         function putInTree()
00089         {
00090                 $this->ilias->raiseError("Operation ilObjMedia::putInTree() not allowed.",$this->ilias->error_obj->FATAL);
00091         }
00092 
00093         function createReference()
00094         {
00095                 $this->ilias->raiseError("Operation ilObjMedia::createReference() not allowed.",$this->ilias->error_obj->FATAL);
00096         }
00097 
00098         function setTitle($a_title)
00099         {
00100                 parent::setTitle($a_title);
00101         }
00102 
00103         function getTitle()
00104         {
00105                 return parent::getTitle();
00106         }
00107 
00115         function _exists($a_id)
00116         {
00117                 global $ilDB;
00118                 
00119                 include_once("content/classes/Pages/class.ilInternalLink.php");
00120                 if (is_int(strpos($a_id, "_")))
00121                 {
00122                         $a_id = ilInternalLink::_extractObjIdOfTarget($a_id);
00123                 }
00124                 
00125                 return parent::_exists($a_id, false);
00126         }
00127 
00131         function delete()
00132         {
00133                 if (!($this->getId() > 0))
00134                 {
00135                         return;
00136                 }
00137 
00138                 $usages = $this->getUsages();
00139 
00140                 if (count($usages) == 0)
00141                 {
00142                         // remove directory
00143                         ilUtil::delDir(ilObjMediaObject::_getDirectory($this->getId()));
00144 
00145                         // remove thumbnail directory
00146                         ilUtil::delDir(ilObjMediaObject::_getThumbnailDirectory($this->getId()));
00147 
00148                         // delete meta data of mob
00149                         $this->deleteMetaData();
00150 
00151                         // delete media items
00152                         ilMediaItem::deleteAllItemsOfMob($this->getId());
00153 
00154                         // delete object
00155                         parent::delete();
00156                 }
00157         }
00158 
00164         function getDescription()
00165         {
00166                 return parent::getDescription();
00167         }
00168 
00172         function setDescription($a_description)
00173         {
00174                 parent::setDescription($a_description);
00175         }
00176 
00188         function MDUpdateListener($a_element)
00189         {
00190                 include_once 'Services/MetaData/classes/class.ilMD.php';
00191 
00192                 switch($a_element)
00193                 {
00194                         case 'General':
00195 
00196                                 // Update Title and description
00197                                 $md = new ilMD(0, $this->getId(), $this->getType());
00198                                 $md_gen = $md->getGeneral();
00199 
00200                                 if (is_object($md_gen))
00201                                 {
00202                                         ilObject::_writeTitle($this->getId(),$md_gen->getTitle());
00203                                         $this->setTitle($md_gen->getTitle());
00204         
00205                                         foreach($md_gen->getDescriptionIds() as $id)
00206                                         {
00207                                                 $md_des = $md_gen->getDescription($id);
00208                                                 ilObject::_writeDescription($this->getId(),$md_des->getDescription());
00209                                                 $this->setDescription($md_des->getDescription());
00210                                                 break;
00211                                         }
00212                                 }
00213 
00214                                 break;
00215 
00216                         default:
00217                 }
00218                 return true;
00219         }
00220 
00224         function createMetaData()
00225         {
00226                 include_once 'Services/MetaData/classes/class.ilMDCreator.php';
00227 
00228                 global $ilUser;
00229 
00230                 $md_creator = new ilMDCreator(0, $this->getId(), $this->getType());
00231                 $md_creator->setTitle($this->getTitle());
00232                 $md_creator->setTitleLanguage($ilUser->getPref('language'));
00233                 $md_creator->setDescription($this->getDescription());
00234                 $md_creator->setDescriptionLanguage($ilUser->getPref('language'));
00235                 $md_creator->setKeywordLanguage($ilUser->getPref('language'));
00236                 $md_creator->setLanguage($ilUser->getPref('language'));
00237                 $md_creator->create();
00238 
00239                 return true;
00240         }
00241 
00245         function updateMetaData()
00246         {
00247                 include_once("Services/MetaData/classes/class.ilMD.php");
00248                 include_once("Services/MetaData/classes/class.ilMDGeneral.php");
00249                 include_once("Services/MetaData/classes/class.ilMDDescription.php");
00250 
00251                 $md =& new ilMD(0, $this->getId(), $this->getType());
00252                 $md_gen =& $md->getGeneral();
00253                 $md_gen->setTitle($this->getTitle());
00254 
00255                 // sets first description (maybe not appropriate)
00256                 $md_des_ids =& $md_gen->getDescriptionIds();
00257                 if (count($md_des_ids) > 0)
00258                 {
00259                         $md_des =& $md_gen->getDescription($md_des_ids[0]);
00260                         $md_des->setDescription($this->getDescription());
00261                         $md_des->update();
00262                 }
00263                 $md_gen->update();
00264 
00265         }
00266 
00270         function deleteMetaData()
00271         {
00272                 // Delete meta data
00273                 include_once('Services/MetaData/classes/class.ilMD.php');
00274                 $md = new ilMD(0, $this->getId(), $this->getType());
00275                 $md->deleteAll();
00276         }
00277 
00278 
00284         function addMediaItem(&$a_item)
00285         {
00286                 $this->media_items[] =& $a_item;
00287         }
00288 
00289 
00295         function &getMediaItems()
00296         {
00297                 return $this->media_items;
00298         }
00299 
00300         function &getMediaItem($a_purpose)
00301         {
00302                 for($i=0; $i<count($this->media_items); $i++)
00303                 {
00304                         if($this->media_items[$i]->getPurpose() == $a_purpose)
00305                         {
00306                                 return $this->media_items[$i];
00307                         }
00308                 }
00309                 return false;
00310         }
00311 
00312 
00316         function removeMediaItem($a_purpose)
00317         {
00318                 for($i=0; $i<count($this->media_items); $i++)
00319                 {
00320                         if($this->media_items[$i]->getPurpose() == $a_purpose)
00321                         {
00322                                 unset($this->media_items[$i]);
00323                         }
00324                 }
00325         }
00326         
00330         function removeAllMediaItems()
00331         {
00332                 $this->media_items = array();
00333         }
00334 
00335 
00336         function getMediaItemNr($a_purpose)
00337         {
00338                 for($i=0; $i<count($this->media_items); $i++)
00339                 {
00340                         if($this->media_items[$i]->getPurpose() == $a_purpose)
00341                         {
00342                                 return $i + 1;
00343                         }
00344                 }
00345                 return false;
00346         }
00347 
00348         function hasFullscreenItem()
00349         {
00350                 if(is_object($this->getMediaItem("Fullscreen")))
00351                 {
00352                         return true;
00353                 }
00354                 else
00355                 {
00356                         return false;
00357                 }
00358         }
00359 
00363         function read()
00364         {
00365 //echo "<br>ilObjMediaObject:read";
00366                 parent::read();
00367 
00368                 // get media items
00369                 ilMediaItem::_getMediaItemsOfMOb($this);
00370 
00371                 // get meta data
00372 //              $this->meta_data =& new ilMetaData($this->getType(), $this->getId());
00373         }
00374 
00378         function setId($a_id)
00379         {
00380                 $this->id = $a_id;
00381         }
00382 
00383         function getId()
00384         {
00385                 return $this->id;
00386         }
00387 
00391         function setAlias($a_is_alias)
00392         {
00393                 $this->is_alias = $a_is_alias;
00394         }
00395 
00396         function isAlias()
00397         {
00398                 return $this->is_alias;
00399         }
00400 
00401         function setOriginID($a_id)
00402         {
00403                 return $this->origin_id = $a_id;
00404         }
00405 
00406         function getOriginID()
00407         {
00408                 return $this->origin_id;
00409         }
00410 
00411         /*
00412         function getimportId()
00413         {
00414                 return $this->meta_data->getImportIdentifierEntryID();
00415         }*/
00416 
00417 
00421         function getImportId()
00422         {
00423                 return $this->import_id;
00424         }
00425 
00426         function setImportId($a_id)
00427         {
00428                 $this->import_id = $a_id;
00429         }
00430 
00434         function create($a_upload = false, $a_save_media_items = true)
00435         {
00436                 parent::create();
00437 
00438                 if (!$a_upload)
00439                 {
00440                         $this->createMetaData();
00441                 }
00442 
00443                 if ($a_save_media_items)
00444                 {
00445                         $media_items =& $this->getMediaItems();
00446                         for($i=0; $i<count($media_items); $i++)
00447                         {
00448                                 $item =& $media_items[$i];
00449                                 $item->setMobId($this->getId());
00450                                 $item->setNr($i+1);
00451                                 $item->create();
00452                         }
00453                 }
00454 
00455         }
00456 
00457 
00461 /*
00462         function initMeta()
00463         {
00464                 if (!is_object($this->meta_data))
00465                 {
00466                         if ($this->getId())
00467                         {
00468                                 $new_meta =& new ilMetaData($this->getType(), $this->getId());
00469                         }
00470                         else
00471                         {
00472                                 $new_meta =& new ilMetaData();
00473                         }
00474                         $this->assignMetaData($new_meta);
00475                 }
00476         }
00477 */
00478 
00482 /*
00483         function updateMetaData()
00484         {
00485                 $this->initMeta();
00486                 $this->meta_data->update();
00487                 if ($this->meta_data->section != "General")
00488                 {
00489                         $meta = $this->meta_data->getElement("Title", "General");
00490                         $this->meta_data->setTitle($meta[0]["value"]);
00491                         $meta = $this->meta_data->getElement("Description", "General");
00492                         $this->meta_data->setDescription($meta[0]["value"]);
00493                 }
00494                 else
00495                 {
00496                         $this->setTitle($this->meta_data->getTitle());
00497                         $this->setDescription($this->meta_data->getDescription());
00498                 }
00499                 parent::update();
00500 
00501                 return true;
00502         }
00503 */
00504 
00508         function update()
00509         {
00510                 $this->updateMetaData();
00511                 parent::update();
00512 
00513                 ilMediaItem::deleteAllItemsOfMob($this->getId());
00514 
00515                 // iterate all items
00516                 $media_items =& $this->getMediaItems();
00517                 $j = 1;
00518                 foreach($media_items as $key => $val)
00519                 {
00520                         $item =& $media_items[$key];
00521                         if (is_object($item))
00522                         {
00523                                 $item->setMobId($this->getId());
00524                                 $item->setNr($j);
00525                                 $item->create();
00526                                 $j++;
00527                         }
00528                 }
00529         }
00530 
00536         function _getDirectory($a_mob_id)
00537         {
00538                 return ilUtil::getWebspaceDir()."/mobs/mm_".$a_mob_id;
00539         }
00540 
00546         function _getThumbnailDirectory($a_mob_id, $a_mode = "filesystem")
00547         {
00548                 return ilUtil::getWebspaceDir($a_mode)."/thumbs/mm_".$a_mob_id;
00549         }
00550 
00554         function createDirectory()
00555         {
00556                 ilUtil::createDirectory(ilObjMediaObject::_getDirectory($this->getId()));
00557         }
00558 
00562         function _createThumbnailDirectory($a_obj_id)
00563         {
00564                 ilUtil::createDirectory(ilUtil::getWebspaceDir()."/thumbs");
00565                 ilUtil::createDirectory(ilUtil::getWebspaceDir()."/thumbs/mm_".$a_obj_id);
00566         }
00567 
00572         function getXML($a_mode = IL_MODE_FULL, $a_inst = 0)
00573         {
00574                 // TODO: full implementation of all parameters
00575 //echo "-".$a_mode."-";
00576                 switch ($a_mode)
00577                 {
00578                         case IL_MODE_ALIAS:
00579                                 $xml = "<MediaObject>";
00580                                 $xml .= "<MediaAlias OriginId=\"il__mob_".$this->getId()."\"/>";
00581                                 $media_items =& $this->getMediaItems();
00582 //echo "MediaItems:".count($media_items).":<br>";
00583                                 for($i=0; $i<count($media_items); $i++)
00584                                 {
00585                                         $item =& $media_items[$i];
00586                                         $xml .= "<MediaAliasItem Purpose=\"".$item->getPurpose()."\">";
00587 
00588                                         // Layout
00589                                         $width = ($item->getWidth() != "")
00590                                                 ? "Width=\"".$item->getWidth()."\""
00591                                                 : "";
00592                                         $height = ($item->getHeight() != "")
00593                                                 ? "Height=\"".$item->getHeight()."\""
00594                                                 : "";
00595                                         $halign = ($item->getHAlign() != "")
00596                                                 ? "HorizontalAlign=\"".$item->getHAlign()."\""
00597                                                 : "";
00598                                         $xml .= "<Layout $width $height $halign />";
00599 
00600                                         // Caption
00601                                         if ($item->getCaption() != "")
00602                                         {
00603                                                 $xml .= "<Caption Align=\"bottom\">".
00604                                                         str_replace("&", "&amp;", $item->getCaption())."</Caption>";
00605                                         }
00606 
00607                                         // Parameter
00608                                         $parameters = $item->getParameters();
00609                                         foreach ($parameters as $name => $value)
00610                                         {
00611                                                 $xml .= "<Parameter Name=\"$name\" Value=\"$value\"/>";
00612                                         }
00613                                         $xml .= "</MediaAliasItem>";
00614                                 }
00615                                 break;
00616 
00617                         // for output we need technical sections of meta data
00618                         case IL_MODE_OUTPUT:
00619 
00620                                 // get first technical section
00621 //                              $meta =& $this->getMetaData();
00622                                 $xml = "<MediaObject Id=\"il__mob_".$this->getId()."\">";
00623 
00624                                 $media_items =& $this->getMediaItems();
00625                                 for($i=0; $i<count($media_items); $i++)
00626                                 {
00627                                         $item =& $media_items[$i];
00628                                         $xml .= "<MediaItem Purpose=\"".$item->getPurpose()."\">";
00629 
00630                                         // Location
00631                                         $xml.= "<Location Type=\"".$item->getLocationType()."\">".
00632                                                 $item->getLocation()."</Location>";
00633 
00634                                         // Format
00635                                         $xml.= "<Format>".$item->getFormat()."</Format>";
00636 
00637                                         // Layout
00638                                         $width = ($item->getWidth() != "")
00639                                                 ? "Width=\"".$item->getWidth()."\""
00640                                                 : "";
00641                                         $height = ($item->getHeight() != "")
00642                                                 ? "Height=\"".$item->getHeight()."\""
00643                                                 : "";
00644                                         $halign = ($item->getHAlign() != "")
00645                                                 ? "HorizontalAlign=\"".$item->getHAlign()."\""
00646                                                 : "";
00647                                         $xml .= "<Layout $width $height $halign />";
00648 
00649                                         // Caption
00650                                         if ($item->getCaption() != "")
00651                                         {
00652                                                 $xml .= "<Caption Align=\"bottom\">".
00653                                                         str_replace("&", "&amp;", $item->getCaption())."</Caption>";
00654                                         }
00655 
00656                                         // Parameter
00657                                         $parameters = $item->getParameters();
00658                                         foreach ($parameters as $name => $value)
00659                                         {
00660                                                 $xml .= "<Parameter Name=\"$name\" Value=\"$value\"/>";
00661                                         }
00662                                         $xml .= $item->getMapAreasXML();
00663                                         $xml .= "</MediaItem>";
00664                                 }
00665                                 break;
00666 
00667                         // full xml for export
00668                         case IL_MODE_FULL:
00669 
00670 //                              $meta =& $this->getMetaData();
00671                                 $xml = "<MediaObject>";
00672 
00673                                 // meta data
00674                                 include_once("Services/MetaData/classes/class.ilMD2XML.php");
00675                                 $md2xml = new ilMD2XML(0, $this->getId(), $this->getType());
00676                                 $md2xml->setExportMode(true);
00677                                 $md2xml->startExport();
00678                                 $xml.= $md2xml->getXML();
00679 
00680                                 $media_items =& $this->getMediaItems();
00681                                 for($i=0; $i<count($media_items); $i++)
00682                                 {
00683                                         $item =& $media_items[$i];
00684                                         $xml .= "<MediaItem Purpose=\"".$item->getPurpose()."\">";
00685 
00686                                         // Location
00687                                         $xml.= "<Location Type=\"".$item->getLocationType()."\">".
00688                                                 $item->getLocation()."</Location>";
00689 
00690                                         // Format
00691                                         $xml.= "<Format>".$item->getFormat()."</Format>";
00692 
00693                                         // Layout
00694                                         $width = ($item->getWidth() != "")
00695                                                 ? "Width=\"".$item->getWidth()."\""
00696                                                 : "";
00697                                         $height = ($item->getHeight() != "")
00698                                                 ? "Height=\"".$item->getHeight()."\""
00699                                                 : "";
00700                                         $halign = ($item->getHAlign() != "")
00701                                                 ? "HorizontalAlign=\"".$item->getHAlign()."\""
00702                                                 : "";
00703                                         $xml .= "<Layout $width $height $halign />";
00704 
00705                                         // Caption
00706                                         if ($item->getCaption() != "")
00707                                         {
00708                                                 $xml .= "<Caption Align=\"bottom\">".
00709                                                         str_replace("&", "&amp;", $item->getCaption())."</Caption>";
00710                                         }
00711 
00712                                         // Parameter
00713                                         $parameters = $item->getParameters();
00714                                         foreach ($parameters as $name => $value)
00715                                         {
00716                                                 $xml .= "<Parameter Name=\"$name\" Value=\"$value\"/>";
00717                                         }
00718                                         $xml .= $item->getMapAreasXML(true, $a_inst);
00719                                         $xml .= "</MediaItem>";
00720                                 }
00721                                 break;
00722                 }
00723                 $xml .= "</MediaObject>";
00724                 return $xml;
00725         }
00726 
00727 
00731         function exportXML(&$a_xml_writer, $a_inst = 0)
00732         {
00733                 $a_xml_writer->appendXML($this->getXML(IL_MODE_FULL, $a_inst));
00734         }
00735 
00736 
00744         function exportFiles($a_target_dir)
00745         {
00746                 $subdir = "il_".IL_INST_ID."_mob_".$this->getId();
00747                 ilUtil::makeDir($a_target_dir."/objects/".$subdir);
00748 
00749                 $mobdir = ilUtil::getWebspaceDir()."/mobs/mm_".$this->getId();
00750                 ilUtil::rCopy($mobdir, $a_target_dir."/objects/".$subdir);
00751 //echo "from:$mobdir:to:".$a_target_dir."/objects/".$subdir.":<br>";
00752         }
00753 
00754 
00755         function modifyExportIdentifier($a_tag, $a_param, $a_value)
00756         {
00757                 if ($a_tag == "Identifier" && $a_param == "Entry")
00758                 {
00759                         $a_value = ilUtil::insertInstIntoID($a_value);
00760                 }
00761 
00762                 return $a_value;
00763         }
00764 
00765 
00767         // EDIT METHODS: these methods act on the media alias in the dom
00769 
00773         function setDom(&$a_dom)
00774         {
00775                 $this->dom =& $a_dom;
00776         }
00777 
00781         function setNode($a_node)
00782         {
00783                 $this->node =& $a_node;                                                 // page content node
00784                 $this->mob_node =& $a_node->first_child();                      // MediaObject node
00785         }
00786 
00790         function &getNode()
00791         {
00792                 return $this->node;
00793         }
00794 
00798         function setHierId($a_hier_id)
00799         {
00800                 $this->hier_id = $a_hier_id;
00801         }
00802 
00809         function setContainsIntLink($a_contains_link)
00810         {
00811                 $this->contains_int_link = $a_contains_link;
00812         }
00813 
00818         function containsIntLink()
00819         {
00820                 return $this->contains_int_link;
00821         }
00822 
00823 
00824         function createAlias(&$a_pg_obj, $a_hier_id)
00825         {
00826                 $this->node =& $this->dom->create_element("PageContent");
00827                 $a_pg_obj->insertContent($this, $a_hier_id, IL_INSERT_AFTER);
00828                 $this->mob_node =& $this->dom->create_element("MediaObject");
00829                 $this->mob_node =& $this->node->append_child($this->mob_node);
00830                 $this->mal_node =& $this->dom->create_element("MediaAlias");
00831                 $this->mal_node =& $this->mob_node->append_child($this->mal_node);
00832                 $this->mal_node->set_attribute("OriginId", "il__mob_".$this->getId());
00833 
00834                 // standard view
00835                 $item_node =& $this->dom->create_element("MediaAliasItem");
00836                 $item_node =& $this->mob_node->append_child($item_node);
00837                 $item_node->set_attribute("Purpose", "Standard");
00838                 $media_item =& $this->getMediaItem("Standard");
00839 
00840                 $layout_node =& $this->dom->create_element("Layout");
00841                 $layout_node =& $item_node->append_child($layout_node);
00842                 if ($media_item->getWidth() > 0)
00843                 {
00844                         $layout_node->set_attribute("Width", $media_item->getWidth());
00845                 }
00846                 if ($media_item->getHeight() > 0)
00847                 {
00848                         $layout_node->set_attribute("Height", $media_item->getHeight());
00849                 }
00850                 $layout_node->set_attribute("HorizontalAlign", "Left");
00851 
00852                 // caption
00853                 if ($media_item->getCaption() != "")
00854                 {
00855                         $cap_node =& $this->dom->create_element("Caption");
00856                         $cap_node =& $item_node->append_child($cap_node);
00857                         $cap_node->set_attribute("Align", "bottom");
00858                         $cap_node->set_content($media_item->getCaption());
00859                 }
00860 
00861                 $pars = $media_item->getParameters();
00862                 foreach($pars as $par => $val)
00863                 {
00864                         $par_node =& $this->dom->create_element("Parameter");
00865                         $par_node =& $item_node->append_child($par_node);
00866                         $par_node->set_attribute("Name", $par);
00867                         $par_node->set_attribute("Value", $val);
00868                 }
00869 
00870                 // fullscreen view
00871                 $fullscreen_item =& $this->getMediaItem("Fullscreen");
00872                 if (is_object($fullscreen_item))
00873                 {
00874                         $item_node =& $this->dom->create_element("MediaAliasItem");
00875                         $item_node =& $this->mob_node->append_child($item_node);
00876                         $item_node->set_attribute("Purpose", "Fullscreen");
00877 
00878                         // width and height
00879                         $layout_node =& $this->dom->create_element("Layout");
00880                         $layout_node =& $item_node->append_child($layout_node);
00881                         if ($fullscreen_item->getWidth() > 0)
00882                         {
00883                                 $layout_node->set_attribute("Width", $fullscreen_item->getWidth());
00884                         }
00885                         if ($fullscreen_item->getHeight() > 0)
00886                         {
00887                                 $layout_node->set_attribute("Height", $fullscreen_item->getHeight());
00888                         }
00889 
00890                         // caption
00891                         if ($fullscreen_item->getCaption() != "")
00892                         {
00893                                 $cap_node =& $this->dom->create_element("Caption");
00894                                 $cap_node =& $item_node->append_child($cap_node);
00895                                 $cap_node->set_attribute("Align", "bottom");
00896                                 $cap_node->set_content($fullscreen_item->getCaption());
00897                         }
00898 
00899                         $pars = $fullscreen_item->getParameters();
00900                         foreach($pars as $par => $val)
00901                         {
00902                                 $par_node =& $this->dom->create_element("Parameter");
00903                                 $par_node =& $item_node->append_child($par_node);
00904                                 $par_node->set_attribute("Name", $par);
00905                                 $par_node->set_attribute("Value", $val);
00906                         }
00907                 }
00908         }
00909 
00913         function _deleteAllUsages($a_type, $a_id)
00914         {
00915                 global $ilDB;
00916                 
00917                 $q = "DELETE FROM mob_usage WHERE usage_type='$a_type' AND usage_id='$a_id'";
00918                 $ilDB->query($q);
00919         }
00920 
00924         function _getMobsOfObject($a_type, $a_id)
00925         {
00926                 global $ilDB;
00927 
00928                 $q = "SELECT * FROM mob_usage WHERE ".
00929                         "usage_type = ".$ilDB->quote($a_type)." AND ".
00930                         "usage_id = ".$ilDB->quote($a_id);
00931                 $mobs = array();
00932                 $mob_set = $ilDB->query($q);
00933                 while($mob_rec = $mob_set->fetchRow(DB_FETCHMODE_ASSOC))
00934                 {
00935                         $mobs[$mob_rec["id"]] = $mob_rec["id"];
00936                 }
00937                 return $mobs;
00938         }
00939 
00940         function _saveUsage($a_mob_id, $a_type, $a_id)
00941         {
00942                 global $ilDB;
00943                 
00944                 $q = "REPLACE INTO mob_usage (id, usage_type, usage_id) VALUES".
00945                         " ('$a_mob_id', '$a_type', '$a_id')";
00946                 $ilDB->query($q);
00947         }
00948 
00949         function _removeUsage($a_mob_id, $a_type, $a_id)
00950         {
00951                 global $ilDB;
00952                 
00953                 $q = "DELETE FROM mob_usage WHERE ".
00954                         " id = ".$ilDB->quote($a_mob_id)." AND ".
00955                         " usage_type = ".$ilDB->quote($a_type)." AND ".
00956                         " usage_id = ".$ilDB->quote($a_id);
00957                 $ilDB->query($q);
00958         }
00959 
00963         function getUsages()
00964         {
00965                 global $ilDB;
00966 
00967                 // get usages in learning modules
00968                 $q = "SELECT * FROM mob_usage WHERE id = '".$this->getId()."'";
00969                 $us_set = $ilDB->query($q);
00970                 $ret = array();
00971                 while($us_rec = $us_set->fetchRow(DB_FETCHMODE_ASSOC))
00972                 {
00973                         $ret[] = array("type" => $us_rec["usage_type"],
00974                                 "id" => $us_rec["usage_id"]);
00975                 }
00976 
00977                 // get usages in media pools
00978                 $q = "SELECT DISTINCT mep_id FROM mep_tree WHERE child = '".$this->getId()."'";
00979                 $us_set = $ilDB->query($q);
00980                 while($us_rec = $us_set->fetchRow(DB_FETCHMODE_ASSOC))
00981                 {
00982                         $ret[] = array("type" => "mep",
00983                                 "id" => $us_rec["mep_id"]);
00984                 }
00985 
00986                 // get usages in map areas
00987                 $q = "SELECT DISTINCT mob_id FROM media_item as it, map_area as area ".
00988                         " WHERE area.item_id = it.id ".
00989                         " AND area.link_type='int' ".
00990                         " AND area.target = 'il__mob_".$this->getId()."'";
00991                 $us_set = $ilDB->query($q);
00992                 while($us_rec = $us_set->fetchRow(DB_FETCHMODE_ASSOC))
00993                 {
00994                         $ret[] = array("type" => "map",
00995                                 "id" => $us_rec["mob_id"]);
00996                 }
00997 
00998                 // get usages in personal clipboards
00999                 $users = ilObjUser::_getUsersForClipboadObject("mob", $this->getId());
01000                 foreach ($users as $user)
01001                 {
01002                         $ret[] = array("type" => "clip",
01003                                 "id" => $user);
01004                 }
01005 
01006                 return $ret;
01007         }
01008 
01016         function _resizeImage($a_file, $a_width, $a_height)
01017         {
01018                 $file_path = pathinfo($a_file);
01019                 $location = substr($file_path["basename"],0,strlen($file_path["basename"]) -
01020                         strlen($file_path["extension"]) - 1)."_".
01021                         $a_width."_".
01022                         $a_height.".".$file_path["extension"];
01023                 $target_file = $file_path["dirname"]."/".
01024                         $location;
01025                 ilUtil::resizeImage($a_file, $target_file,
01026                         (int) $a_width, (int) $a_height);
01027 
01028                 return $location;
01029         }
01030 
01038         function getMimeType ($a_file)
01039         {
01040                 // check if mimetype detection enabled in php.ini
01041                 $set = ini_get("mime_magic.magicfile");
01042                 // get mimetype
01043                 if ($set <> "")
01044                 {
01045                         $mime = @mime_content_type($a_file);
01046                 }
01047 
01048                 // some php installations return always
01049                 // text/plain, so we make our own detection in this case, too
01050                 if (empty($mime) || $mime == "text/plain")
01051                 {
01052                         $path = pathinfo($a_file);
01053                         $ext = ".".strtolower($path["extension"]);
01054 
01058                         $types_map = ilObjMediaObject::getExt2MimeMap();
01059                         $mime = $types_map[$ext];
01060                 }
01061 
01062                 // set default if mimetype detection failed or not possible (e.g. remote file)
01063                 if (empty($mime))
01064                 {
01065                         $mime = "application/octet-stream";
01066                 }
01067 
01068                 return $mime;
01069         }
01070 
01071 
01075         function getExt2MimeMap()
01076         {
01077                 $types_map = array (
01078                         '.a'      => 'application/octet-stream',
01079                         '.ai'     => 'application/postscript',
01080                         '.aif'    => 'audio/x-aiff',
01081                         '.aifc'   => 'audio/x-aiff',
01082                         '.aiff'   => 'audio/x-aiff',
01083                         '.asd'    => 'application/astound',
01084                         '.asf'    => 'video/x-ms-asf',
01085                         '.asn'    => 'application/astound',
01086                         '.asx'    => 'video/x-ms-asf',
01087                         '.au'     => 'audio/basic',
01088                         '.avi'    => 'video/x-msvideo',
01089                         '.bat'    => 'text/plain',
01090                         '.bcpio'  => 'application/x-bcpio',
01091                         '.bin'    => 'application/octet-stream',
01092                         '.bmp'    => 'image/x-ms-bmp',
01093                         '.c'      => 'text/plain',
01094                         '.cdf'    => 'application/x-cdf',
01095                         '.class'  => 'application/x-java-applet',
01096                         '.com'    => 'application/octet-stream',
01097                         '.cpio'   => 'application/x-cpio',
01098                         '.csh'    => 'application/x-csh',
01099                         '.css'    => 'text/css',
01100                         '.csv'    => 'text/comma-separated-values',
01101                         '.dcr'    => 'application/x-director',
01102                         '.dir'    => 'application/x-director',
01103                         '.dll'    => 'application/octet-stream',
01104                         '.doc'    => 'application/msword',
01105                         '.dot'    => 'application/msword',
01106                         '.dvi'    => 'application/x-dvi',
01107                         '.dwg'    => 'application/acad',
01108                         '.dxf'    => 'application/dxf',
01109                         '.dxr'    => 'application/x-director',
01110                         '.eml'    => 'message/rfc822',
01111                         '.eps'    => 'application/postscript',
01112                         '.etx'    => 'text/x-setext',
01113                         '.exe'    => 'application/octet-stream',
01114                         '.gif'    => 'image/gif',
01115                         '.gtar'   => 'application/x-gtar',
01116                         '.gz'     => 'application/gzip',
01117                         '.h'      => 'text/plain',
01118                         '.hdf'    => 'application/x-hdf',
01119                         '.htm'    => 'text/html',
01120                         '.html'   => 'text/html',
01121                         '.ief'    => 'image/ief',
01122                         '.iff'    => 'image/iff',
01123                         '.jar'    => 'application/x-java-applet',
01124                         '.jpe'    => 'image/jpeg',
01125                         '.jpeg'   => 'image/jpeg',
01126                         '.jpg'    => 'image/jpeg',
01127                         '.js'     => 'application/x-javascript',
01128                         '.ksh'    => 'text/plain',
01129                         '.latex'  => 'application/x-latex',
01130                         '.m1v'    => 'video/mpeg',
01131                         '.man'    => 'application/x-troff-man',
01132                         '.me'     => 'application/x-troff-me',
01133                         '.mht'    => 'message/rfc822',
01134                         '.mhtml'  => 'message/rfc822',
01135                         '.mid'    => 'audio/x-midi',
01136                         '.midi'   => 'audio/x-midi',
01137                         '.mif'    => 'application/x-mif',
01138                         '.mov'    => 'video/quicktime',
01139                         '.movie'  => 'video/x-sgi-movie',
01140                         '.mp2'    => 'audio/mpeg',
01141                         '.mp3'    => 'audio/mpeg',
01142                         '.mpa'    => 'video/mpeg',
01143                         '.mpe'    => 'video/mpeg',
01144                         '.mpeg'   => 'video/mpeg',
01145                         '.mpg'    => 'video/mpeg',
01146                         '.ms'     => 'application/x-troff-ms',
01147                         '.nc'     => 'application/x-netcdf',
01148                         '.nws'    => 'message/rfc822',
01149                         '.o'      => 'application/octet-stream',
01150                         '.obj'    => 'application/octet-stream',
01151                         '.oda'    => 'application/oda',
01152                         '.p12'    => 'application/x-pkcs12',
01153                         '.p7c'    => 'application/pkcs7-mime',
01154                         '.pbm'    => 'image/x-portable-bitmap',
01155                         '.pdf'    => 'application/pdf',
01156                         '.pfx'    => 'application/x-pkcs12',
01157                         '.pgm'    => 'image/x-portable-graymap',
01158                         '.php'    => 'application/x-httpd-php',
01159                         '.phtml'  => 'application/x-httpd-php',
01160                         '.pl'     => 'text/plain',
01161                         '.png'    => 'image/png',
01162                         '.pnm'    => 'image/x-portable-anymap',
01163                         '.pot'    => 'application/vnd.ms-powerpoint',
01164                         '.ppa'    => 'application/vnd.ms-powerpoint',
01165                         '.ppm'    => 'image/x-portable-pixmap',
01166                         '.pps'    => 'application/vnd.ms-powerpoint',
01167                         '.ppt'    => 'application/vnd.ms-powerpoint',
01168                         '.ps'     => 'application/postscript',
01169                         '.psd'    => 'image/psd',
01170                         '.pwz'    => 'application/vnd.ms-powerpoint',
01171                         '.py'     => 'text/x-python',
01172                         '.pyc'    => 'application/x-python-code',
01173                         '.pyo'    => 'application/x-python-code',
01174                         '.qt'     => 'video/quicktime',
01175                         '.ra'     => 'audio/x-pn-realaudio',
01176                         '.ram'    => 'application/x-pn-realaudio',
01177                         '.ras'    => 'image/x-cmu-raster',
01178                         '.rdf'    => 'application/xml',
01179                         '.rgb'    => 'image/x-rgb',
01180                         '.roff'   => 'application/x-troff',
01181                         '.rpm'    => 'audio/x-pn-realaudio-plugin',
01182                         '.rtf'    => 'application/rtf',
01183                         '.rtx'    => 'text/richtext',
01184                         '.sgm'    => 'text/x-sgml',
01185                         '.sgml'   => 'text/x-sgml',
01186                         '.sh'     => 'application/x-sh',
01187                         '.shar'   => 'application/x-shar',
01188                         '.sit'    => 'application/x-stuffit',
01189                         '.snd'    => 'audio/basic',
01190                         '.so'     => 'application/octet-stream',
01191                         '.spc'    => 'text/x-speech',
01192                         '.src'    => 'application/x-wais-source',
01193                         '.sv4cpio'=> 'application/x-sv4cpio',
01194                         '.sv4crc' => 'application/x-sv4crc',
01195                         '.svg'    => 'image/svg+xml',
01196                         '.swf'    => 'application/x-shockwave-flash',
01197                         '.t'      => 'application/x-troff',
01198                         '.tar'    => 'application/x-tar',
01199                         '.talk'   => 'text/x-speech',
01200                         '.tbk'    => 'application/toolbook',
01201                         '.tcl'    => 'application/x-tcl',
01202                         '.tex'    => 'application/x-tex',
01203                         '.texi'   => 'application/x-texinfo',
01204                         '.texinfo'=> 'application/x-texinfo',
01205                         '.tif'    => 'image/tiff',
01206                         '.tiff'   => 'image/tiff',
01207                         '.tr'     => 'application/x-troff',
01208                         '.tsv'    => 'text/tab-separated-values',
01209                         '.tsp'    => 'application/dsptype',
01210                         '.txt'    => 'text/plain',
01211                         '.ustar'  => 'application',
01212                         '.vcf'    => 'text/x-vcard',
01213                         '.vox'    => 'audio/voxware',
01214                         '.wav'    => 'audio/x-wav',
01215                         '.wax'    => 'audio/x-ms-wax',
01216                         '.wiz'    => 'application/msword',
01217                         '.wm'     => 'video/x-ms-wm',
01218                         '.wma'    => 'audio/x-ms-wma',
01219                         '.wmd'    => 'video/x-ms-wmd',
01220                         '.wml'    => 'text/vnd.wap.wml',
01221                         '.wmlc'   => 'application/vnd.wap.wmlc',
01222                         '.wmls'   => 'text/vnd.wap.wmlscript',
01223                         '.wmlsc'  => 'application/vnd.wap.wmlscriptc',
01224                         '.wmv'    => 'video/x-ms-wmv',
01225                         '.wmx'    => 'video/x-ms-wmx',
01226                         '.wmz'    => 'video/x-ms-wmz',
01227                         '.wvx'    => 'video/x-ms-wvx',
01228                         '.wrl'    => 'x-world/x-vrml',
01229                         '.xbm'    => 'image/x-xbitmap',
01230                         '.xla'    => 'application/msexcel',
01231                         '.xlb'    => 'application/vnd.ms-excel',
01232                         '.xls'    => 'application/msexcel',
01233                         '.xml'    => 'text/xml',
01234                         '.xpm'    => 'image/x-xpixmap',
01235                         '.xsl'    => 'application/xml',
01236                         '.xwd'    => 'image/x-xwindowdump',
01237                         '.zip'    => 'application/zip');
01238 
01239                 return $types_map;
01240         }
01241 
01242         function getDataDirectory()
01243         {
01244                 return ilUtil::getWebspaceDir()."/mobs/mm_".$this->object->getId();
01245         }
01246 
01247 
01252          function setEnabled ($value) 
01253          {
01254                 if (is_object($this->node))
01255                 {
01256                         $this->node->set_attribute("Enabled", $value);
01257                 }
01258          }
01259          
01260          
01266           function isEnabled ()
01267           {
01268                 if (is_object($this->node) && $this->node->has_attribute("Enabled"))
01269                 {
01270                         $compare = $this->node->get_attribute("Enabled");                                               
01271                 } 
01272                 else $compare = "True";
01273                         
01274                 return $compare == "True";
01275           }
01276 
01277 
01281           function enable() 
01282           {
01283                         $this->setEnabled ("True");
01284           }
01285           
01289           function disable() 
01290           {
01291                         $this->setEnabled ("False");
01292           } 
01293 
01297         function &_saveTempFileAsMediaObject($name, $tmp_name, $upload = TRUE)
01298         {
01299                 // create dummy object in db (we need an id)
01300                 $media_object = new ilObjMediaObject();
01301                 $media_object->setTitle($name);
01302                 $media_object->setDescription("");
01303                 $media_object->create();
01304 
01305                 // determine and create mob directory, move uploaded file to directory
01306                 $media_object->createDirectory();
01307                 $mob_dir = ilObjMediaObject::_getDirectory($media_object->getId());
01308 
01309                 $media_item =& new ilMediaItem();
01310                 $media_object->addMediaItem($media_item);
01311                 $media_item->setPurpose("Standard");
01312 
01313                 $file = $mob_dir."/".$name;
01314                 if ($upload)
01315                 {
01316                         ilUtil::moveUploadedFile($tmp_name,$name, $file);
01317                 }
01318                 else
01319                 {
01320                         copy($tmp_name, $file);
01321                 }
01322                 // get mime type
01323                 $format = ilObjMediaObject::getMimeType($file);
01324                 $location = $name;
01325                 // set real meta and object data
01326                 $media_item->setFormat($format);
01327                 $media_item->setLocation($location);
01328                 $media_item->setLocationType("LocalFile");
01329                 $media_object->setTitle($name);
01330                 $media_object->setDescription($format);
01331 
01332                 if (ilUtil::deducibleSize($format))
01333                 {
01334                         $size = getimagesize($file);
01335                         $media_item->setWidth($size[0]);
01336                         $media_item->setHeight($size[1]);
01337                 }
01338                 $media_item->setHAlign("Left");
01339 
01340                 ilUtil::renameExecutables($mob_dir);
01341                 $media_object->update();
01342 
01343                 return $media_object;
01344         }
01345         
01346 }
01347 ?>