ILIAS Release_3_9_x_branch .rev 46835: Services/MediaObjects/classes/class.ilObjMediaObject.php Source File

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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("./Services/MediaObjects/classes/class.ilMediaItem.php");
00029 include_once "classes/class.ilObject.php";
00030 
00046 class ilObjMediaObject extends ilObject
00047 {
00048         var $is_alias;
00049         var $origin_id;
00050         var $id;
00051 
00052         var $dom;
00053         var $hier_id;
00054         var $node;
00055         var $mob_node;
00056         var $media_items;
00057         var $contains_int_link;
00058 
00063         function ilObjMediaObject($a_id = 0)
00064         {
00065                 $this->is_alias = false;
00066                 $this->media_items = array();
00067                 $this->contains_int_link = false;
00068                 $this->type = "mob";
00069 //echo "<br>ilObjMediaObject:Constructor:$a_id:";
00070                 parent::ilObject($a_id, false);
00071 
00072                 /*
00073                 if($a_id != 0)
00074                 {
00075                         $this->read();
00076                 }*/
00077 
00078 
00079         }
00080 
00081         function setRefId()
00082         {
00083                 $this->ilias->raiseError("Operation ilObjMedia::setRefId() not allowed.",$this->ilias->error_obj->FATAL);
00084         }
00085 
00086         function getRefId()
00087         {
00088                 $this->ilias->raiseError("Operation ilObjMedia::getRefId() not allowed.",$this->ilias->error_obj->FATAL);
00089         }
00090 
00091         function putInTree()
00092         {
00093                 $this->ilias->raiseError("Operation ilObjMedia::putInTree() not allowed.",$this->ilias->error_obj->FATAL);
00094         }
00095 
00096         function createReference()
00097         {
00098                 $this->ilias->raiseError("Operation ilObjMedia::createReference() not allowed.",$this->ilias->error_obj->FATAL);
00099         }
00100 
00101         function setTitle($a_title)
00102         {
00103                 parent::setTitle($a_title);
00104         }
00105 
00106         function getTitle()
00107         {
00108                 return parent::getTitle();
00109         }
00110 
00118         function _exists($a_id)
00119         {
00120                 global $ilDB;
00121                 
00122                 include_once("./Services/COPage/classes/class.ilInternalLink.php");
00123                 if (is_int(strpos($a_id, "_")))
00124                 {
00125                         $a_id = ilInternalLink::_extractObjIdOfTarget($a_id);
00126                 }
00127                 
00128                 return parent::_exists($a_id, false);
00129         }
00130 
00134         function delete()
00135         {
00136                 if (!($this->getId() > 0))
00137                 {
00138                         return;
00139                 }
00140 
00141                 $usages = $this->getUsages();
00142 
00143                 if (count($usages) == 0)
00144                 {
00145                         // remove directory
00146                         ilUtil::delDir(ilObjMediaObject::_getDirectory($this->getId()));
00147 
00148                         // remove thumbnail directory
00149                         ilUtil::delDir(ilObjMediaObject::_getThumbnailDirectory($this->getId()));
00150 
00151                         // delete meta data of mob
00152                         $this->deleteMetaData();
00153 
00154                         // delete media items
00155                         ilMediaItem::deleteAllItemsOfMob($this->getId());
00156 
00157                         // delete object
00158                         parent::delete();
00159                 }
00160         }
00161 
00167         function getDescription()
00168         {
00169                 return parent::getDescription();
00170         }
00171 
00175         function setDescription($a_description)
00176         {
00177                 parent::setDescription($a_description);
00178         }
00179 
00191         function MDUpdateListener($a_element)
00192         {
00193                 include_once 'Services/MetaData/classes/class.ilMD.php';
00194 
00195                 switch($a_element)
00196                 {
00197                         case 'General':
00198 
00199                                 // Update Title and description
00200                                 $md = new ilMD(0, $this->getId(), $this->getType());
00201                                 $md_gen = $md->getGeneral();
00202 
00203                                 if (is_object($md_gen))
00204                                 {
00205                                         ilObject::_writeTitle($this->getId(),$md_gen->getTitle());
00206                                         $this->setTitle($md_gen->getTitle());
00207         
00208                                         foreach($md_gen->getDescriptionIds() as $id)
00209                                         {
00210                                                 $md_des = $md_gen->getDescription($id);
00211                                                 ilObject::_writeDescription($this->getId(),$md_des->getDescription());
00212                                                 $this->setDescription($md_des->getDescription());
00213                                                 break;
00214                                         }
00215                                 }
00216 
00217                                 break;
00218 
00219                         default:
00220                 }
00221                 return true;
00222         }
00223 
00227         function createMetaData()
00228         {
00229                 include_once 'Services/MetaData/classes/class.ilMDCreator.php';
00230 
00231                 global $ilUser;
00232 
00233                 $md_creator = new ilMDCreator(0, $this->getId(), $this->getType());
00234                 $md_creator->setTitle($this->getTitle());
00235                 $md_creator->setTitleLanguage($ilUser->getPref('language'));
00236                 $md_creator->setDescription($this->getDescription());
00237                 $md_creator->setDescriptionLanguage($ilUser->getPref('language'));
00238                 $md_creator->setKeywordLanguage($ilUser->getPref('language'));
00239                 $md_creator->setLanguage($ilUser->getPref('language'));
00240                 $md_creator->create();
00241 
00242                 return true;
00243         }
00244 
00248         function updateMetaData()
00249         {
00250                 include_once("Services/MetaData/classes/class.ilMD.php");
00251                 include_once("Services/MetaData/classes/class.ilMDGeneral.php");
00252                 include_once("Services/MetaData/classes/class.ilMDDescription.php");
00253 
00254                 $md =& new ilMD(0, $this->getId(), $this->getType());
00255                 $md_gen =& $md->getGeneral();
00256                 $md_gen->setTitle($this->getTitle());
00257 
00258                 // sets first description (maybe not appropriate)
00259                 $md_des_ids =& $md_gen->getDescriptionIds();
00260                 if (count($md_des_ids) > 0)
00261                 {
00262                         $md_des =& $md_gen->getDescription($md_des_ids[0]);
00263                         $md_des->setDescription($this->getDescription());
00264                         $md_des->update();
00265                 }
00266                 $md_gen->update();
00267 
00268         }
00269 
00273         function deleteMetaData()
00274         {
00275                 // Delete meta data
00276                 include_once('Services/MetaData/classes/class.ilMD.php');
00277                 $md = new ilMD(0, $this->getId(), $this->getType());
00278                 $md->deleteAll();
00279         }
00280 
00281 
00287         function addMediaItem(&$a_item)
00288         {
00289                 $this->media_items[] =& $a_item;
00290         }
00291 
00292 
00298         function &getMediaItems()
00299         {
00300                 return $this->media_items;
00301         }
00302 
00303         function &getMediaItem($a_purpose)
00304         {
00305                 for($i=0; $i<count($this->media_items); $i++)
00306                 {
00307                         if($this->media_items[$i]->getPurpose() == $a_purpose)
00308                         {
00309                                 return $this->media_items[$i];
00310                         }
00311                 }
00312                 return false;
00313         }
00314 
00315 
00319         function removeMediaItem($a_purpose)
00320         {
00321                 for($i=0; $i<count($this->media_items); $i++)
00322                 {
00323                         if($this->media_items[$i]->getPurpose() == $a_purpose)
00324                         {
00325                                 unset($this->media_items[$i]);
00326                         }
00327                 }
00328         }
00329         
00333         function removeAllMediaItems()
00334         {
00335                 $this->media_items = array();
00336         }
00337 
00338 
00339         function getMediaItemNr($a_purpose)
00340         {
00341                 for($i=0; $i<count($this->media_items); $i++)
00342                 {
00343                         if($this->media_items[$i]->getPurpose() == $a_purpose)
00344                         {
00345                                 return $i + 1;
00346                         }
00347                 }
00348                 return false;
00349         }
00350 
00351         function hasFullscreenItem()
00352         {
00353                 if(is_object($this->getMediaItem("Fullscreen")))
00354                 {
00355                         return true;
00356                 }
00357                 else
00358                 {
00359                         return false;
00360                 }
00361         }
00362 
00366         function read()
00367         {
00368 //echo "<br>ilObjMediaObject:read";
00369                 parent::read();
00370 
00371                 // get media items
00372                 ilMediaItem::_getMediaItemsOfMOb($this);
00373         }
00374 
00378         function setId($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 
00458 
00459 
00463         function update()
00464         {
00465                 $this->updateMetaData();
00466                 parent::update();
00467 
00468                 ilMediaItem::deleteAllItemsOfMob($this->getId());
00469 
00470                 // iterate all items
00471                 $media_items =& $this->getMediaItems();
00472                 $j = 1;
00473                 foreach($media_items as $key => $val)
00474                 {
00475                         $item =& $media_items[$key];
00476                         if (is_object($item))
00477                         {
00478                                 $item->setMobId($this->getId());
00479                                 $item->setNr($j);
00480                                 $item->create();
00481                                 $j++;
00482                         }
00483                 }
00484         }
00485 
00491         function _getDirectory($a_mob_id)
00492         {
00493                 return ilUtil::getWebspaceDir()."/mobs/mm_".$a_mob_id;
00494         }
00495         
00501         function _getURL($a_mob_id)
00502         {
00503                 return ilUtil::getHtmlPath(ilUtil::getWebspaceDir()."/mobs/mm_".$a_mob_id);
00504         }
00505 
00511         function _getThumbnailDirectory($a_mob_id, $a_mode = "filesystem")
00512         {
00513                 return ilUtil::getWebspaceDir($a_mode)."/thumbs/mm_".$a_mob_id;
00514         }
00515         
00521         static function _lookupStandardItemPath($a_mob_id, $a_url_encode = false,
00522                 $a_web = true)
00523         {
00524                 $location = ($a_url_encode)
00525                         ? rawurlencode(ilMediaItem::_lookupLocationForMobId($a_mob_id, "Standard"))
00526                         : ilMediaItem::_lookupLocationForMobId($a_mob_id, "Standard");
00527                 
00528                 $path = ($a_web)
00529                         ? ILIAS_HTTP_PATH
00530                         : ".";
00531                         
00532                 return $path."/data/".CLIENT_ID."/mobs/mm_".$a_mob_id."/".$location;
00533         }
00534 
00538         function createDirectory()
00539         {
00540                 ilUtil::createDirectory(ilObjMediaObject::_getDirectory($this->getId()));
00541         }
00542 
00546         function _createThumbnailDirectory($a_obj_id)
00547         {
00548                 ilUtil::createDirectory(ilUtil::getWebspaceDir()."/thumbs");
00549                 ilUtil::createDirectory(ilUtil::getWebspaceDir()."/thumbs/mm_".$a_obj_id);
00550         }
00551 
00556         function getXML($a_mode = IL_MODE_FULL, $a_inst = 0)
00557         {
00558                 // TODO: full implementation of all parameters
00559 //echo "-".$a_mode."-";
00560                 switch ($a_mode)
00561                 {
00562                         case IL_MODE_ALIAS:
00563                                 $xml = "<MediaObject>";
00564                                 $xml .= "<MediaAlias OriginId=\"il__mob_".$this->getId()."\"/>";
00565                                 $media_items =& $this->getMediaItems();
00566 //echo "MediaItems:".count($media_items).":<br>";
00567                                 for($i=0; $i<count($media_items); $i++)
00568                                 {
00569                                         $item =& $media_items[$i];
00570                                         $xml .= "<MediaAliasItem Purpose=\"".$item->getPurpose()."\">";
00571 
00572                                         // Layout
00573                                         $width = ($item->getWidth() != "")
00574                                                 ? "Width=\"".$item->getWidth()."\""
00575                                                 : "";
00576                                         $height = ($item->getHeight() != "")
00577                                                 ? "Height=\"".$item->getHeight()."\""
00578                                                 : "";
00579                                         $halign = ($item->getHAlign() != "")
00580                                                 ? "HorizontalAlign=\"".$item->getHAlign()."\""
00581                                                 : "";
00582                                         $xml .= "<Layout $width $height $halign />";
00583 
00584                                         // Caption
00585                                         if ($item->getCaption() != "")
00586                                         {
00587                                                 $xml .= "<Caption Align=\"bottom\">".
00588                                                         str_replace("&", "&amp;", $item->getCaption())."</Caption>";
00589                                         }
00590 
00591                                         // Parameter
00592                                         $parameters = $item->getParameters();
00593                                         foreach ($parameters as $name => $value)
00594                                         {
00595                                                 $xml .= "<Parameter Name=\"$name\" Value=\"$value\"/>";
00596                                         }
00597                                         $xml .= "</MediaAliasItem>";
00598                                 }
00599                                 break;
00600 
00601                         // for output we need technical sections of meta data
00602                         case IL_MODE_OUTPUT:
00603 
00604                                 // get first technical section
00605 //                              $meta =& $this->getMetaData();
00606                                 $xml = "<MediaObject Id=\"il__mob_".$this->getId()."\">";
00607 
00608                                 $media_items =& $this->getMediaItems();
00609                                 for($i=0; $i<count($media_items); $i++)
00610                                 {
00611                                         $item =& $media_items[$i];
00612                                         $xml .= "<MediaItem Purpose=\"".$item->getPurpose()."\">";
00613 
00614                                         // Location
00615                                         $xml.= "<Location Type=\"".$item->getLocationType()."\">".
00616                                                 $this->handleAmps($item->getLocation())."</Location>";
00617 
00618                                         // Format
00619                                         $xml.= "<Format>".$item->getFormat()."</Format>";
00620 
00621                                         // Layout
00622                                         $width = ($item->getWidth() != "")
00623                                                 ? "Width=\"".$item->getWidth()."\""
00624                                                 : "";
00625                                         $height = ($item->getHeight() != "")
00626                                                 ? "Height=\"".$item->getHeight()."\""
00627                                                 : "";
00628                                         $halign = ($item->getHAlign() != "")
00629                                                 ? "HorizontalAlign=\"".$item->getHAlign()."\""
00630                                                 : "";
00631                                         $xml .= "<Layout $width $height $halign />";
00632 
00633                                         // Caption
00634                                         if ($item->getCaption() != "")
00635                                         {
00636                                                 $xml .= "<Caption Align=\"bottom\">".
00637                                                         str_replace("&", "&amp;", $item->getCaption())."</Caption>";
00638                                         }
00639 
00640                                         // Parameter
00641                                         $parameters = $item->getParameters();
00642                                         foreach ($parameters as $name => $value)
00643                                         {
00644                                                 $xml .= "<Parameter Name=\"$name\" Value=\"$value\"/>";
00645                                         }
00646                                         $xml .= $item->getMapAreasXML();
00647                                         $xml .= "</MediaItem>";
00648                                 }
00649                                 break;
00650 
00651                         // full xml for export
00652                         case IL_MODE_FULL:
00653 
00654 //                              $meta =& $this->getMetaData();
00655                                 $xml = "<MediaObject>";
00656 
00657                                 // meta data
00658                                 include_once("Services/MetaData/classes/class.ilMD2XML.php");
00659                                 $md2xml = new ilMD2XML(0, $this->getId(), $this->getType());
00660                                 $md2xml->setExportMode(true);
00661                                 $md2xml->startExport();
00662                                 $xml.= $md2xml->getXML();
00663 
00664                                 $media_items =& $this->getMediaItems();
00665                                 for($i=0; $i<count($media_items); $i++)
00666                                 {
00667                                         $item =& $media_items[$i];
00668                                         $xml .= "<MediaItem Purpose=\"".$item->getPurpose()."\">";
00669 
00670                                         // Location
00671                                         $xml.= "<Location Type=\"".$item->getLocationType()."\">".
00672                                                 $item->getLocation()."</Location>";
00673 
00674                                         // Format
00675                                         $xml.= "<Format>".$item->getFormat()."</Format>";
00676 
00677                                         // Layout
00678                                         $width = ($item->getWidth() != "")
00679                                                 ? "Width=\"".$item->getWidth()."\""
00680                                                 : "";
00681                                         $height = ($item->getHeight() != "")
00682                                                 ? "Height=\"".$item->getHeight()."\""
00683                                                 : "";
00684                                         $halign = ($item->getHAlign() != "")
00685                                                 ? "HorizontalAlign=\"".$item->getHAlign()."\""
00686                                                 : "";
00687                                         $xml .= "<Layout $width $height $halign />";
00688 
00689                                         // Caption
00690                                         if ($item->getCaption() != "")
00691                                         {
00692                                                 $xml .= "<Caption Align=\"bottom\">".
00693                                                         str_replace("&", "&amp;", $item->getCaption())."</Caption>";
00694                                         }
00695 
00696                                         // Parameter
00697                                         $parameters = $item->getParameters();
00698                                         foreach ($parameters as $name => $value)
00699                                         {
00700                                                 $xml .= "<Parameter Name=\"$name\" Value=\"$value\"/>";
00701                                         }
00702                                         $xml .= $item->getMapAreasXML(true, $a_inst);
00703                                         $xml .= "</MediaItem>";
00704                                 }
00705                                 break;
00706                 }
00707                 $xml .= "</MediaObject>";
00708                 return $xml;
00709         }
00710 
00714         function handleAmps($a_str)
00715         {
00716                 $a_str = str_replace("&amp;", "&", $a_str);
00717                 $a_str = str_replace("&", "&amp;", $a_str);
00718                 return $a_str;
00719         }
00720         
00724         function exportXML(&$a_xml_writer, $a_inst = 0)
00725         {
00726                 $a_xml_writer->appendXML($this->getXML(IL_MODE_FULL, $a_inst));
00727         }
00728 
00729 
00737         function exportFiles($a_target_dir)
00738         {
00739                 $subdir = "il_".IL_INST_ID."_mob_".$this->getId();
00740                 ilUtil::makeDir($a_target_dir."/objects/".$subdir);
00741 
00742                 $mobdir = ilUtil::getWebspaceDir()."/mobs/mm_".$this->getId();
00743                 ilUtil::rCopy($mobdir, $a_target_dir."/objects/".$subdir);
00744 //echo "from:$mobdir:to:".$a_target_dir."/objects/".$subdir.":<br>";
00745         }
00746 
00747 
00748         function modifyExportIdentifier($a_tag, $a_param, $a_value)
00749         {
00750                 if ($a_tag == "Identifier" && $a_param == "Entry")
00751                 {
00752                         $a_value = ilUtil::insertInstIntoID($a_value);
00753                 }
00754 
00755                 return $a_value;
00756         }
00757 
00758 
00760         // EDIT METHODS: these methods act on the media alias in the dom
00762 
00766         function setDom(&$a_dom)
00767         {
00768                 $this->dom =& $a_dom;
00769         }
00770 
00774         function setNode($a_node)
00775         {
00776                 $this->node =& $a_node;                                                 // page content node
00777                 $this->mob_node =& $a_node->first_child();                      // MediaObject node
00778         }
00779 
00783         function &getNode()
00784         {
00785                 return $this->node;
00786         }
00787 
00791         function setHierId($a_hier_id)
00792         {
00793                 $this->hier_id = $a_hier_id;
00794         }
00795 
00802         function setContainsIntLink($a_contains_link)
00803         {
00804                 $this->contains_int_link = $a_contains_link;
00805         }
00806 
00811         function containsIntLink()
00812         {
00813                 return $this->contains_int_link;
00814         }
00815 
00816 
00817         function createAlias(&$a_pg_obj, $a_hier_id)
00818         {
00819                 $this->node =& $this->dom->create_element("PageContent");
00820                 $a_pg_obj->insertContent($this, $a_hier_id, IL_INSERT_AFTER);
00821                 $this->mob_node =& $this->dom->create_element("MediaObject");
00822                 $this->mob_node =& $this->node->append_child($this->mob_node);
00823                 $this->mal_node =& $this->dom->create_element("MediaAlias");
00824                 $this->mal_node =& $this->mob_node->append_child($this->mal_node);
00825                 $this->mal_node->set_attribute("OriginId", "il__mob_".$this->getId());
00826 
00827                 // standard view
00828                 $item_node =& $this->dom->create_element("MediaAliasItem");
00829                 $item_node =& $this->mob_node->append_child($item_node);
00830                 $item_node->set_attribute("Purpose", "Standard");
00831                 $media_item =& $this->getMediaItem("Standard");
00832 
00833                 $layout_node =& $this->dom->create_element("Layout");
00834                 $layout_node =& $item_node->append_child($layout_node);
00835                 if ($media_item->getWidth() > 0)
00836                 {
00837                         $layout_node->set_attribute("Width", $media_item->getWidth());
00838                 }
00839                 if ($media_item->getHeight() > 0)
00840                 {
00841                         $layout_node->set_attribute("Height", $media_item->getHeight());
00842                 }
00843                 $layout_node->set_attribute("HorizontalAlign", "Left");
00844 
00845                 // caption
00846                 if ($media_item->getCaption() != "")
00847                 {
00848                         $cap_node =& $this->dom->create_element("Caption");
00849                         $cap_node =& $item_node->append_child($cap_node);
00850                         $cap_node->set_attribute("Align", "bottom");
00851                         $cap_node->set_content($media_item->getCaption());
00852                 }
00853 
00854                 $pars = $media_item->getParameters();
00855                 foreach($pars as $par => $val)
00856                 {
00857                         $par_node =& $this->dom->create_element("Parameter");
00858                         $par_node =& $item_node->append_child($par_node);
00859                         $par_node->set_attribute("Name", $par);
00860                         $par_node->set_attribute("Value", $val);
00861                 }
00862 
00863                 // fullscreen view
00864                 $fullscreen_item =& $this->getMediaItem("Fullscreen");
00865                 if (is_object($fullscreen_item))
00866                 {
00867                         $item_node =& $this->dom->create_element("MediaAliasItem");
00868                         $item_node =& $this->mob_node->append_child($item_node);
00869                         $item_node->set_attribute("Purpose", "Fullscreen");
00870 
00871                         // width and height
00872                         $layout_node =& $this->dom->create_element("Layout");
00873                         $layout_node =& $item_node->append_child($layout_node);
00874                         if ($fullscreen_item->getWidth() > 0)
00875                         {
00876                                 $layout_node->set_attribute("Width", $fullscreen_item->getWidth());
00877                         }
00878                         if ($fullscreen_item->getHeight() > 0)
00879                         {
00880                                 $layout_node->set_attribute("Height", $fullscreen_item->getHeight());
00881                         }
00882 
00883                         // caption
00884                         if ($fullscreen_item->getCaption() != "")
00885                         {
00886                                 $cap_node =& $this->dom->create_element("Caption");
00887                                 $cap_node =& $item_node->append_child($cap_node);
00888                                 $cap_node->set_attribute("Align", "bottom");
00889                                 $cap_node->set_content($fullscreen_item->getCaption());
00890                         }
00891 
00892                         $pars = $fullscreen_item->getParameters();
00893                         foreach($pars as $par => $val)
00894                         {
00895                                 $par_node =& $this->dom->create_element("Parameter");
00896                                 $par_node =& $item_node->append_child($par_node);
00897                                 $par_node->set_attribute("Name", $par);
00898                                 $par_node->set_attribute("Value", $val);
00899                         }
00900                 }
00901         }
00902 
00906         function _deleteAllUsages($a_type, $a_id)
00907         {
00908                 global $ilDB;
00909                 
00910                 $q = "DELETE FROM mob_usage WHERE usage_type = ".
00911                         $ilDB->quote($a_type)." AND usage_id= ".$ilDB->quote($a_id);
00912                 $ilDB->query($q);
00913         }
00914 
00918         function _getMobsOfObject($a_type, $a_id)
00919         {
00920                 global $ilDB;
00921 
00922                 $q = "SELECT * FROM mob_usage WHERE ".
00923                         "usage_type = ".$ilDB->quote($a_type)." AND ".
00924                         "usage_id = ".$ilDB->quote($a_id);
00925                 $mobs = array();
00926                 $mob_set = $ilDB->query($q);
00927                 while($mob_rec = $mob_set->fetchRow(DB_FETCHMODE_ASSOC))
00928                 {
00929                         $mobs[$mob_rec["id"]] = $mob_rec["id"];
00930                 }
00931                 return $mobs;
00932         }
00933 
00934         function _saveUsage($a_mob_id, $a_type, $a_id)
00935         {
00936                 global $ilDB;
00937                 
00938                 $q = "REPLACE INTO mob_usage (id, usage_type, usage_id) VALUES".
00939                         " (".$ilDB->quote($a_mob_id).",".
00940                         $ilDB->quote($a_type).",".$ilDB->quote($a_id).")";
00941                 $ilDB->query($q);
00942         }
00943 
00944         function _removeUsage($a_mob_id, $a_type, $a_id)
00945         {
00946                 global $ilDB;
00947                 
00948                 $q = "DELETE FROM mob_usage WHERE ".
00949                         " id = ".$ilDB->quote($a_mob_id)." AND ".
00950                         " usage_type = ".$ilDB->quote($a_type)." AND ".
00951                         " usage_id = ".$ilDB->quote($a_id);
00952                 $ilDB->query($q);
00953         }
00954 
00958         function getUsages()
00959         {
00960                 return $this->lookupUsages($this->getId());
00961         }
00962         
00968         function lookupUsages($a_id)
00969         {
00970                 global $ilDB;
00971 
00972                 // get usages in learning modules
00973                 $q = "SELECT * FROM mob_usage WHERE id = ".
00974                         $ilDB->quote($a_id);
00975                 $us_set = $ilDB->query($q);
00976                 $ret = array();
00977                 while($us_rec = $us_set->fetchRow(DB_FETCHMODE_ASSOC))
00978                 {
00979                         $ret[] = array("type" => $us_rec["usage_type"],
00980                                 "id" => $us_rec["usage_id"]);
00981                 }
00982 
00983                 // get usages in media pools
00984                 $q = "SELECT DISTINCT mep_id FROM mep_tree WHERE child = ".
00985                         $ilDB->quote($a_id);
00986                 $us_set = $ilDB->query($q);
00987                 while($us_rec = $us_set->fetchRow(DB_FETCHMODE_ASSOC))
00988                 {
00989                         $ret[] = array("type" => "mep",
00990                                 "id" => $us_rec["mep_id"]);
00991                 }
00992                 
00993                 // get usages in news items (media casts)
00994                 include_once("./Services/News/classes/class.ilNewsItem.php");
00995                 $news_usages = ilNewsItem::_lookupMediaObjectUsages($a_id);
00996                 foreach($news_usages as $nu)
00997                 {
00998                         $ret[] = $nu;
00999                 }
01000                 
01001 
01002                 // get usages in map areas
01003                 $q = "SELECT DISTINCT mob_id FROM media_item as it, map_area as area ".
01004                         " WHERE area.item_id = it.id ".
01005                         " AND area.link_type='int' ".
01006                         " AND area.target = ".$ilDB->quote("il__mob_".$a_id);
01007                 $us_set = $ilDB->query($q);
01008                 while($us_rec = $us_set->fetchRow(DB_FETCHMODE_ASSOC))
01009                 {
01010                         $ret[] = array("type" => "map",
01011                                 "id" => $us_rec["mob_id"]);
01012                 }
01013 
01014                 // get usages in personal clipboards
01015                 $users = ilObjUser::_getUsersForClipboadObject("mob", $a_id);
01016                 foreach ($users as $user)
01017                 {
01018                         $ret[] = array("type" => "clip",
01019                                 "id" => $user);
01020                 }
01021 
01022                 return $ret;
01023         }
01024 
01028         function getParentObjectIdForUsage($a_usage, $a_include_all_access_obj_ids = false)
01029         {
01030                 if(is_int(strpos($a_usage["type"], ":")))
01031                 {
01032                         $us_arr = explode(":", $a_usage["type"]);
01033                         $type = $us_arr[1];
01034                         $cont_type = $us_arr[0];
01035                 }
01036                 else
01037                 {
01038                         $type = $a_usage["type"];
01039                 }
01040                 
01041                 $id = $a_usage["id"];
01042                 $obj_id = false;
01043                 
01044                 switch($type)
01045                 {
01046                         case "html":                                    // "old" category pages
01047                                 if ($cont_type == "cat")
01048                                 {
01049                                         $obj_id = $id;
01050                                 }
01051                                 // Test InfoScreen Text
01052                                 if ($cont_type == "tst")
01053                                 {
01054                                         $obj_id = $id;
01055                                         //var_dump($qinfo);
01056                                 }
01057                                 // Question Pool *Question* Text
01058                                 if ($cont_type == "qpl")
01059                                 {
01060                                         include_once("./Modules/TestQuestionPool/classes/class.assQuestion.php");
01061                                         $qinfo = assQuestion::_getQuestionInfo($id);
01062                                         if ($qinfo["original_id"] > 0)
01063                                         {
01064                                                 include_once("./Modules/Test/classes/class.ilObjTest.php");
01065                                                 $obj_id = ilObjTest::_lookupTestObjIdForQuestionId($id);        // usage in test
01066                                         }
01067                                         else
01068                                         {
01069                                                 $obj_id = $qinfo["obj_fi"];             // usage in pool
01070                                         }
01071                                 }
01072                                 break;
01073                                 
01074                         case "pg":
01075                         
01076                                 // Question Pool Question Pages
01077                                 if ($cont_type == "qpl")
01078                                 {
01079                                         include_once("./Modules/TestQuestionPool/classes/class.assQuestion.php");
01080                                         $qinfo = assQuestion::_getQuestionInfo($id);
01081                                         if ($qinfo["original_id"] > 0)
01082                                         {
01083                                                 include_once("./Modules/Test/classes/class.ilObjTest.php");
01084                                                 $obj_id = ilObjTest::_lookupTestObjIdForQuestionId($id);        // usage in test
01085                                         }
01086                                         else
01087                                         {
01088                                                 $obj_id = $qinfo["obj_fi"];             // usage in pool
01089                                         }
01090                                 }
01091                                 
01092                                 // learning modules
01093                                 if ($cont_type == "lm" || $cont_type == "dbk")
01094                                 {
01095                                         include_once("./Modules/LearningModule/classes/class.ilLMObject.php");
01096                                         $obj_id = ilLMObject::_lookupContObjID($id);
01097                                 }
01098                                 
01099                                 // glossary definition
01100                                 if ($cont_type == "gdf")
01101                                 {
01102                                         include_once("./Modules/Glossary/classes/class.ilGlossaryDefinition.php");
01103                                         include_once("./Modules/Glossary/classes/class.ilGlossaryTerm.php");
01104                                         $term_id = ilGlossaryDefinition::_lookupTermId($id);
01105                                         $obj_id = ilGlossaryTerm::_lookGlossaryID($term_id);
01106                                 }
01107                                 
01108                                 break;
01109                                 
01110                         // Media Pool
01111                         case "mep":
01112                                 $obj_id = $id;
01113                                 break;
01114 
01115                         // News Context Object (e.g. MediaCast)
01116                         case "news":
01117                                 include_once("./Services/News/classes/class.ilNewsItem.php");
01118                                 $obj_id = ilNewsItem::_lookupContextObjId($id);
01119                                 break;
01120                 }
01121                 
01122                 return $obj_id;
01123         }
01124         
01132         function _resizeImage($a_file, $a_width, $a_height)
01133         {
01134                 $file_path = pathinfo($a_file);
01135                 $location = substr($file_path["basename"],0,strlen($file_path["basename"]) -
01136                         strlen($file_path["extension"]) - 1)."_".
01137                         $a_width."_".
01138                         $a_height.".".$file_path["extension"];
01139                 $target_file = $file_path["dirname"]."/".
01140                         $location;
01141                 ilUtil::resizeImage($a_file, $target_file,
01142                         (int) $a_width, (int) $a_height);
01143 
01144                 return $location;
01145         }
01146 
01154         static function getMimeType ($a_file)
01155         {
01156                 // check if mimetype detection enabled in php.ini
01157                 $set = ini_get("mime_magic.magicfile");
01158                 // get mimetype
01159                 if ($set <> "")
01160                 {
01161                         $mime = @mime_content_type($a_file);
01162                 }
01163 
01164                 // some php installations return always
01165                 // text/plain, so we make our own detection in this case, too
01166                 if (empty($mime) || $mime == "text/plain")
01167                 {
01168                         $path = pathinfo($a_file);
01169                         $ext = ".".strtolower($path["extension"]);
01170 
01174                         $types_map = ilObjMediaObject::getExt2MimeMap();
01175                         $mime = $types_map[$ext];
01176                 }
01177 
01178                 // set default if mimetype detection failed or not possible (e.g. remote file)
01179                 if (empty($mime))
01180                 {
01181                         $mime = "application/octet-stream";
01182                 }
01183 
01184                 return $mime;
01185         }
01186 
01187 
01191         function getExt2MimeMap()
01192         {
01193                 $types_map = array (
01194                         '.a'      => 'application/octet-stream',
01195                         '.ai'     => 'application/postscript',
01196                         '.aif'    => 'audio/x-aiff',
01197                         '.aifc'   => 'audio/x-aiff',
01198                         '.aiff'   => 'audio/x-aiff',
01199                         '.asd'    => 'application/astound',
01200                         '.asf'    => 'video/x-ms-asf',
01201                         '.asn'    => 'application/astound',
01202                         '.asx'    => 'video/x-ms-asf',
01203                         '.au'     => 'audio/basic',
01204                         '.avi'    => 'video/x-msvideo',
01205                         '.bat'    => 'text/plain',
01206                         '.bcpio'  => 'application/x-bcpio',
01207                         '.bin'    => 'application/octet-stream',
01208                         '.bmp'    => 'image/x-ms-bmp',
01209                         '.c'      => 'text/plain',
01210                         '.cdf'    => 'application/x-cdf',
01211                         '.class'  => 'application/x-java-applet',
01212                         '.com'    => 'application/octet-stream',
01213                         '.cpio'   => 'application/x-cpio',
01214                         '.csh'    => 'application/x-csh',
01215                         '.css'    => 'text/css',
01216                         '.csv'    => 'text/comma-separated-values',
01217                         '.dcr'    => 'application/x-director',
01218                         '.dir'    => 'application/x-director',
01219                         '.dll'    => 'application/octet-stream',
01220                         '.doc'    => 'application/msword',
01221                         '.dot'    => 'application/msword',
01222                         '.dvi'    => 'application/x-dvi',
01223                         '.dwg'    => 'application/acad',
01224                         '.dxf'    => 'application/dxf',
01225                         '.dxr'    => 'application/x-director',
01226                         '.eml'    => 'message/rfc822',
01227                         '.eps'    => 'application/postscript',
01228                         '.etx'    => 'text/x-setext',
01229                         '.exe'    => 'application/octet-stream',
01230                         '.flv'    => 'video/x-flv',
01231                         '.gif'    => 'image/gif',
01232                         '.gtar'   => 'application/x-gtar',
01233                         '.gz'     => 'application/gzip',
01234                         '.h'      => 'text/plain',
01235                         '.hdf'    => 'application/x-hdf',
01236                         '.htm'    => 'text/html',
01237                         '.html'   => 'text/html',
01238                         '.ief'    => 'image/ief',
01239                         '.iff'    => 'image/iff',
01240                         '.jar'    => 'application/x-java-applet',
01241                         '.jpe'    => 'image/jpeg',
01242                         '.jpeg'   => 'image/jpeg',
01243                         '.jpg'    => 'image/jpeg',
01244                         '.js'     => 'application/x-javascript',
01245                         '.ksh'    => 'text/plain',
01246                         '.latex'  => 'application/x-latex',
01247                         '.m1v'    => 'video/mpeg',
01248                         '.man'    => 'application/x-troff-man',
01249                         '.me'     => 'application/x-troff-me',
01250                         '.mht'    => 'message/rfc822',
01251                         '.mhtml'  => 'message/rfc822',
01252                         '.mid'    => 'audio/x-midi',
01253                         '.midi'   => 'audio/x-midi',
01254                         '.mif'    => 'application/x-mif',
01255                         '.mov'    => 'video/quicktime',
01256                         '.movie'  => 'video/x-sgi-movie',
01257                         '.mp2'    => 'audio/mpeg',
01258                         '.mp3'    => 'audio/mpeg',
01259                         '.mpa'    => 'video/mpeg',
01260                         '.mpe'    => 'video/mpeg',
01261                         '.mpeg'   => 'video/mpeg',
01262                         '.mpg'    => 'video/mpeg',
01263                         '.mp4'    => 'video/mp4',
01264                         '.mv4'    => 'video/mp4',
01265                         '.ms'     => 'application/x-troff-ms',
01266                         '.nc'     => 'application/x-netcdf',
01267                         '.nws'    => 'message/rfc822',
01268                         '.o'      => 'application/octet-stream',
01269                         '.ogg'    => 'application/ogg',
01270                         '.obj'    => 'application/octet-stream',
01271                         '.oda'    => 'application/oda',
01272                         '.p12'    => 'application/x-pkcs12',
01273                         '.p7c'    => 'application/pkcs7-mime',
01274                         '.pbm'    => 'image/x-portable-bitmap',
01275                         '.pdf'    => 'application/pdf',
01276                         '.pfx'    => 'application/x-pkcs12',
01277                         '.pgm'    => 'image/x-portable-graymap',
01278                         '.php'    => 'application/x-httpd-php',
01279                         '.phtml'  => 'application/x-httpd-php',
01280                         '.pl'     => 'text/plain',
01281                         '.png'    => 'image/png',
01282                         '.pnm'    => 'image/x-portable-anymap',
01283                         '.pot'    => 'application/vnd.ms-powerpoint',
01284                         '.ppa'    => 'application/vnd.ms-powerpoint',
01285                         '.ppm'    => 'image/x-portable-pixmap',
01286                         '.pps'    => 'application/vnd.ms-powerpoint',
01287                         '.ppt'    => 'application/vnd.ms-powerpoint',
01288                         '.ps'     => 'application/postscript',
01289                         '.psd'    => 'image/psd',
01290                         '.pwz'    => 'application/vnd.ms-powerpoint',
01291                         '.py'     => 'text/x-python',
01292                         '.pyc'    => 'application/x-python-code',
01293                         '.pyo'    => 'application/x-python-code',
01294                         '.qt'     => 'video/quicktime',
01295                         '.ra'     => 'audio/x-pn-realaudio',
01296                         '.ram'    => 'application/x-pn-realaudio',
01297                         '.ras'    => 'image/x-cmu-raster',
01298                         '.rdf'    => 'application/xml',
01299                         '.rgb'    => 'image/x-rgb',
01300                         '.roff'   => 'application/x-troff',
01301                         '.rpm'    => 'audio/x-pn-realaudio-plugin',
01302                         '.rtf'    => 'application/rtf',
01303                         '.rtx'    => 'text/richtext',
01304                         '.sgm'    => 'text/x-sgml',
01305                         '.sgml'   => 'text/x-sgml',
01306                         '.sh'     => 'application/x-sh',
01307                         '.shar'   => 'application/x-shar',
01308                         '.sit'    => 'application/x-stuffit',
01309                         '.snd'    => 'audio/basic',
01310                         '.so'     => 'application/octet-stream',
01311                         '.spc'    => 'text/x-speech',
01312                         '.src'    => 'application/x-wais-source',
01313                         '.sv4cpio'=> 'application/x-sv4cpio',
01314                         '.sv4crc' => 'application/x-sv4crc',
01315                         '.svg'    => 'image/svg+xml',
01316                         '.swf'    => 'application/x-shockwave-flash',
01317                         '.t'      => 'application/x-troff',
01318                         '.tar'    => 'application/x-tar',
01319                         '.talk'   => 'text/x-speech',
01320                         '.tbk'    => 'application/toolbook',
01321                         '.tcl'    => 'application/x-tcl',
01322                         '.tex'    => 'application/x-tex',
01323                         '.texi'   => 'application/x-texinfo',
01324                         '.texinfo'=> 'application/x-texinfo',
01325                         '.tif'    => 'image/tiff',
01326                         '.tiff'   => 'image/tiff',
01327                         '.tr'     => 'application/x-troff',
01328                         '.tsv'    => 'text/tab-separated-values',
01329                         '.tsp'    => 'application/dsptype',
01330                         '.txt'    => 'text/plain',
01331                         '.ustar'  => 'application',
01332                         '.vcf'    => 'text/x-vcard',
01333                         '.vox'    => 'audio/voxware',
01334                         '.wav'    => 'audio/x-wav',
01335                         '.wax'    => 'audio/x-ms-wax',
01336                         '.wiz'    => 'application/msword',
01337                         '.wm'     => 'video/x-ms-wm',
01338                         '.wma'    => 'audio/x-ms-wma',
01339                         '.wmd'    => 'video/x-ms-wmd',
01340                         '.wml'    => 'text/vnd.wap.wml',
01341                         '.wmlc'   => 'application/vnd.wap.wmlc',
01342                         '.wmls'   => 'text/vnd.wap.wmlscript',
01343                         '.wmlsc'  => 'application/vnd.wap.wmlscriptc',
01344                         '.wmv'    => 'video/x-ms-wmv',
01345                         '.wmx'    => 'video/x-ms-wmx',
01346                         '.wmz'    => 'video/x-ms-wmz',
01347                         '.wvx'    => 'video/x-ms-wvx',
01348                         '.wrl'    => 'x-world/x-vrml',
01349                         '.xbm'    => 'image/x-xbitmap',
01350                         '.xla'    => 'application/msexcel',
01351                         '.xlb'    => 'application/vnd.ms-excel',
01352                         '.xls'    => 'application/msexcel',
01353                         '.xml'    => 'text/xml',
01354                         '.xpm'    => 'image/x-xpixmap',
01355                         '.xsl'    => 'application/xml',
01356                         '.xwd'    => 'image/x-xwindowdump',
01357                         '.zip'    => 'application/zip');
01358 
01359                 return $types_map;
01360         }
01361 
01362         function getDataDirectory()
01363         {
01364                 return ilUtil::getWebspaceDir()."/mobs/mm_".$this->object->getId();
01365         }
01366 
01367 
01372          function setEnabled ($value) 
01373          {
01374                 if (is_object($this->node))
01375                 {
01376                         $this->node->set_attribute("Enabled", $value);
01377                 }
01378          }
01379          
01380          
01386           function isEnabled ()
01387           {
01388                 if (is_object($this->node) && $this->node->has_attribute("Enabled"))
01389                 {
01390                         $compare = $this->node->get_attribute("Enabled");                                               
01391                 } 
01392                 else $compare = "True";
01393                         
01394                 return $compare == "True";
01395           }
01396 
01397 
01401           function enable() 
01402           {
01403                         $this->setEnabled ("True");
01404           }
01405           
01409           function disable() 
01410           {
01411                         $this->setEnabled ("False");
01412           } 
01413 
01417         function &_saveTempFileAsMediaObject($name, $tmp_name, $upload = TRUE)
01418         {
01419                 // create dummy object in db (we need an id)
01420                 $media_object = new ilObjMediaObject();
01421                 $media_object->setTitle($name);
01422                 $media_object->setDescription("");
01423                 $media_object->create();
01424 
01425                 // determine and create mob directory, move uploaded file to directory
01426                 $media_object->createDirectory();
01427                 $mob_dir = ilObjMediaObject::_getDirectory($media_object->getId());
01428 
01429                 $media_item =& new ilMediaItem();
01430                 $media_object->addMediaItem($media_item);
01431                 $media_item->setPurpose("Standard");
01432 
01433                 $file = $mob_dir."/".$name;
01434                 if ($upload)
01435                 {
01436                         ilUtil::moveUploadedFile($tmp_name,$name, $file);
01437                 }
01438                 else
01439                 {
01440                         copy($tmp_name, $file);
01441                 }
01442                 // get mime type
01443                 $format = ilObjMediaObject::getMimeType($file);
01444                 $location = $name;
01445                 // set real meta and object data
01446                 $media_item->setFormat($format);
01447                 $media_item->setLocation($location);
01448                 $media_item->setLocationType("LocalFile");
01449                 $media_object->setTitle($name);
01450                 $media_object->setDescription($format);
01451 
01452                 if (ilUtil::deducibleSize($format))
01453                 {
01454                         $size = getimagesize($file);
01455                         $media_item->setWidth($size[0]);
01456                         $media_item->setHeight($size[1]);
01457                 }
01458                 $media_item->setHAlign("Left");
01459 
01460                 ilUtil::renameExecutables($mob_dir);
01461                 $media_object->update();
01462 
01463                 return $media_object;
01464         }
01465         
01469         function getLinkedMediaObjects($a_ignore = "")
01470         {
01471                 $linked = array();
01472                 
01473                 if (!is_array($a_ignore))
01474                 {
01475                         $a_ignore = array();
01476                 }
01477                 
01478                 // get linked media objects (map areas)
01479                 $med_items = $this->getMediaItems();
01480 
01481                 foreach($med_items as $med_item)
01482                 {
01483                         $int_links = ilMapArea::_getIntLinks($med_item->getId());
01484                         foreach ($int_links as $k => $int_link)
01485                         {
01486                                 if ($int_link["Type"] == "MediaObject")
01487                                 {
01488                                         include_once("./Services/COPage/classes/class.ilInternalLink.php");
01489                                         $l_id = ilInternalLink::_extractObjIdOfTarget($int_link["Target"]);
01490                                         if (ilObject::_exists($l_id))
01491                                         {
01492                                                 if (!in_array($l_id, $linked) && 
01493                                                         !in_array($l_id, $a_ignore))
01494                                                 {
01495                                                         $linked[] = $l_id;
01496                                                 }
01497                                         }
01498                                 }
01499                         }
01500                 }
01501 //var_dump($linked);
01502                 return $linked;
01503         }
01504 }
01505 ?>