ilPCMediaObject Class Reference

Class ilPCMediaObject. More...

Inheritance diagram for ilPCMediaObject:

Collaboration diagram for ilPCMediaObject:

Public Member Functions
	init ()
	Init page content component.
	readMediaObject ($a_mob_id=0)
	Read/get Media Object.
	setNode (&$a_node)
	Set xml node of page content.
	setDom (&$a_dom)
	set dom object
	setHierId ($a_hier_id)
	set hierarchical edit id
	setMediaObject ($a_mediaobject)
	Set Media Object.
	getMediaObject ()
	Get Media Object.
	createMediaObject ()
	create (&$a_pg_obj, $a_hier_id)
	Create pc media object.
	createAlias (&$a_pg_obj, $a_hier_id, $a_pc_id="")
	Create an media alias in page.
	updateObjectReference ()
	Updates the media object referenced by the media alias.
	dumpXML ()
	Dump node xml.
	setClass ($a_class)
	Set Style Class of table.
	getClass ()
	Get characteristic of section.
Public Member Functions inherited from ilPageContent
	__construct ($a_pg_obj)
	Constructor.
	setPage ($a_val)
	Set page.
	getPage ()
	Get page.
	getType ()
	Get type of page content.
&	getNode ()
	Get xml node of page content.
	getJavascriptFiles ()
	Get Javascript files.
	getCssFiles ()
	Get css files.
	getOnloadCode ()
	Get on load code.
	getHierId ()
	Get hierarchical id.
	lookupHierId ()
	Get hierarchical id from dom.
	readHierId ()
	Read PC Id.
	setPcId ($a_pcid)
	Set PC Id.
	getPCId ()
	Get PC Id.
	readPCId ()
	Read PC Id.
	writePCId ($a_pc_id)
	Write pc id.
	isGreaterHierId ($a, $b)
	Check whether Hier ID $a is greater than Hier ID $b.
	setEnabled ($value)
	Set Enabled value for page content component.
	enable ()
	Enable page content.
	disable ()
	Disable page content.
	isEnabled ()
	Check whether page content is enabled.
	createPageContentNode ($a_set_this_node=true)
	Create page content node (always use this method first when adding a new element)
	modifyPageContentPostXsl ($a_output, $a_mode)
	Modify page content after xsl.

Static Public Member Functions
static	getLangVars ()
	Get lang vars needed for editing.
static	afterPageUpdate ($a_page, DOMDocument $a_domdoc, $a_xml, $a_creation)
	After page has been updated (or created)
static	beforePageDelete ($a_page)
	Before page is being deleted.
static	afterPageHistoryEntry ($a_page, DOMDocument $a_old_domdoc, $a_old_xml, $a_old_nr)
	After page history entry has been created.
static	saveMobUsage ($a_page, $a_domdoc, $a_old_nr=0)
	Save all usages of media objects (media aliases, media objects, internal links)
Static Public Member Functions inherited from ilPageContent
static	incEdId ($ed_id)
	Increases an hierarchical editing id at lowest level (last number)
static	decEdId ($ed_id)
	Decreases an hierarchical editing id at lowest level (last number)
static	haveSameContainer ($ed_id1, $ed_id2)
	Check, if two ids are in same container.
static	sortHierIds ($a_array)
	Sort an array of Hier IDS in ascending order.
static	handleCopiedContent (DOMDocument $a_domdoc, $a_self_ass=true, $a_clone_mobs=false)
	Handle copied content.

Data Fields
	$mob_node
Data Fields inherited from ilPageContent
	$hier_id
	$node
	$dom

Additional Inherited Members
Protected Member Functions inherited from ilPageContent
	setType ($a_type)
	Set Type.

Detailed Description

Class ilPCMediaObject.

Media content object (see ILIAS DTD)

Author

Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Version

$Id$

Definition at line 16 of file class.ilPCMediaObject.php.

Member Function Documentation

static ilPCMediaObject::afterPageHistoryEntry (   $a_page, DOMDocument  $a_old_domdoc,   $a_old_xml,   $a_old_nr  )

static

After page history entry has been created.

Parameters

object	$a_page	page object
DOMDocument	$a_old_domdoc	old dom document
string	$a_old_xml	old xml
integer	$a_old_nr	history number

Reimplemented from ilPageContent.

Definition at line 352 of file class.ilPCMediaObject.php.

References saveMobUsage().

        {
                self::saveMobUsage($a_page, $a_old_domdoc, $a_old_nr);
        }

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static ilPCMediaObject::afterPageUpdate (   $a_page, DOMDocument  $a_domdoc,   $a_xml,   $a_creation  )

static

After page has been updated (or created)

Parameters

object	$a_page	page object
DOMDocument	$a_domdoc	dom document
string	$a_xml	xml
bool	$a_creation	true on creation, otherwise false

Reimplemented from ilPageContent.

Definition at line 293 of file class.ilPCMediaObject.php.

References ilObject\_exists(), ilObjMediaObject\_getMobsOfObject(), ilObject\_lookupType(), and saveMobUsage().

        {
                if (!$a_page->getImportMode())
                {
                        include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                        $mob_ids = ilObjMediaObject::_getMobsOfObject(
                                $a_page->getParentType().":pg", $a_page->getId(), 0, $a_page->getLanguage());
                        self::saveMobUsage($a_page, $a_domdoc);
                        foreach($mob_ids as $mob)       // check, whether media object can be deleted
                        {
                                if (ilObject::_exists($mob) && ilObject::_lookupType($mob) == "mob")
                                {
                                        $mob_obj = new ilObjMediaObject($mob);
                                        $usages = $mob_obj->getUsages(false);
                                        if (count($usages) == 0)        // delete, if no usage exists
                                        {
                                                $mob_obj->delete();
                                        }
                                }
                        }
                }
        }

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static ilPCMediaObject::beforePageDelete (   $a_page )

static

Before page is being deleted.

Parameters

object

$a_page

page object

Reimplemented from ilPageContent.

Definition at line 321 of file class.ilPCMediaObject.php.

References ilObjMediaObject\_deleteAllUsages(), ilObject\_exists(), ilObjMediaObject\_getMobsOfObject(), and ilObject\_lookupType().

        {
                include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                $mob_ids = ilObjMediaObject::_getMobsOfObject(
                        $a_page->getParentType().":pg", $a_page->getId(), 0, $a_page->getLanguage());

                ilObjMediaObject::_deleteAllUsages($a_page->getParentType().":pg", $a_page->getId(), false,
                        $a_page->getLanguage());

                foreach($mob_ids as $mob)       // check, whether media object can be deleted
                {
                        if (ilObject::_exists($mob) && ilObject::_lookupType($mob) == "mob")
                        {
                                $mob_obj = new ilObjMediaObject($mob);
                                $usages = $mob_obj->getUsages(false);
                                if (count($usages) == 0)        // delete, if no usage exists
                                {
                                        $mob_obj->delete();
                                }
                        }
                }
        }

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ilPCMediaObject::create	(	&	$a_pg_obj,
			$a_hier_id
	)

Create pc media object.

Definition at line 92 of file class.ilPCMediaObject.php.

References ilPageContent\createPageContentNode().

        {
                $this->node = $this->createPageContentNode();
        }

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ilPCMediaObject::createAlias	(	&	$a_pg_obj,
			$a_hier_id,
			$a_pc_id = ""
	)

Create an media alias in page.

Parameters

object	$a_pg_obj	page object
string	$a_hier_id	hierarchical ID w

Definition at line 103 of file class.ilPCMediaObject.php.

References getMediaObject(), and IL_INSERT_AFTER.

        {
                $this->node =& $this->dom->create_element("PageContent");
                $a_pg_obj->insertContent($this, $a_hier_id, IL_INSERT_AFTER, $a_pc_id);
                $this->mob_node =& $this->dom->create_element("MediaObject");
                $this->mob_node =& $this->node->append_child($this->mob_node);
                $this->mal_node =& $this->dom->create_element("MediaAlias");
                $this->mal_node =& $this->mob_node->append_child($this->mal_node);
                $this->mal_node->set_attribute("OriginId", "il__mob_".$this->getMediaObject()->getId());

                // standard view
                $item_node =& $this->dom->create_element("MediaAliasItem");
                $item_node =& $this->mob_node->append_child($item_node);
                $item_node->set_attribute("Purpose", "Standard");
                $media_item =& $this->getMediaObject()->getMediaItem("Standard");

                $layout_node =& $this->dom->create_element("Layout");
                $layout_node =& $item_node->append_child($layout_node);
                if ($media_item->getWidth() > 0)
                {
                        //$layout_node->set_attribute("Width", $media_item->getWidth());
                }
                if ($media_item->getHeight() > 0)
                {
                        //$layout_node->set_attribute("Height", $media_item->getHeight());
                }
                $layout_node->set_attribute("HorizontalAlign", "Left");

                // caption
                if ($media_item->getCaption() != "")
                {
                        $cap_node =& $this->dom->create_element("Caption");
                        $cap_node =& $item_node->append_child($cap_node);
                        $cap_node->set_attribute("Align", "bottom");
                        $cap_node->set_content($media_item->getCaption());
                }

                // text representation
                if ($media_item->getTextRepresentation() != "")
                {
                        $tr_node =& $this->dom->create_element("TextRepresentation");
                        $tr_node =& $item_node->append_child($tr_node);
                        $tr_node->set_content($media_item->getTextRepresentation());
                }

                $pars = $media_item->getParameters();
                foreach($pars as $par => $val)
                {
                        $par_node =& $this->dom->create_element("Parameter");
                        $par_node =& $item_node->append_child($par_node);
                        $par_node->set_attribute("Name", $par);
                        $par_node->set_attribute("Value", $val);
                }

                // fullscreen view
                $fullscreen_item =& $this->getMediaObject()->getMediaItem("Fullscreen");
                if (is_object($fullscreen_item))
                {
                        $item_node =& $this->dom->create_element("MediaAliasItem");
                        $item_node =& $this->mob_node->append_child($item_node);
                        $item_node->set_attribute("Purpose", "Fullscreen");

                        // width and height
                        $layout_node =& $this->dom->create_element("Layout");
                        $layout_node =& $item_node->append_child($layout_node);
                        if ($fullscreen_item->getWidth() > 0)
                        {
                                $layout_node->set_attribute("Width", $fullscreen_item->getWidth());
                        }
                        if ($fullscreen_item->getHeight() > 0)
                        {
                                $layout_node->set_attribute("Height", $fullscreen_item->getHeight());
                        }

                        // caption
                        if ($fullscreen_item->getCaption() != "")
                        {
                                $cap_node =& $this->dom->create_element("Caption");
                                $cap_node =& $item_node->append_child($cap_node);
                                $cap_node->set_attribute("Align", "bottom");
                                $cap_node->set_content($fullscreen_item->getCaption());
                        }

                        // text representation
                        if ($fullscreen_item->getTextRepresentation() != "")
                        {
                                $tr_node =& $this->dom->create_element("TextRepresentation");
                                $tr_node =& $item_node->append_child($tr_node);
                                $tr_node->set_content($fullscreen_item->getTextRepresentation());
                        }

                        $pars = $fullscreen_item->getParameters();
                        foreach($pars as $par => $val)
                        {
                                $par_node =& $this->dom->create_element("Parameter");
                                $par_node =& $item_node->append_child($par_node);
                                $par_node->set_attribute("Name", $par);
                                $par_node->set_attribute("Value", $val);
                        }
                }
        }

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ilPCMediaObject::createMediaObject

(

)

Definition at line 84 of file class.ilPCMediaObject.php.

References setMediaObject().

        {
                $this->setMediaObject(new ilObjMediaObject());
        }

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ilPCMediaObject::dumpXML

(

)

Dump node xml.

Definition at line 225 of file class.ilPCMediaObject.php.

        {
                $xml = $this->dom->dump_node($this->node);
                return $xml;
        }

ilPCMediaObject::getClass

(

)

Get characteristic of section.

Returns

string characteristic

Definition at line 263 of file class.ilPCMediaObject.php.

        {
                if (is_object($this->mob_node))
                {
                        $mal_node = $this->mob_node->first_child();
                        if (is_object($mal_node))
                        {
                                $class =  $mal_node->get_attribute("Class");
                                return $class;
                        }
                }
        }

static ilPCMediaObject::getLangVars ( )

static

Get lang vars needed for editing.

Returns

array array of lang var keys

Reimplemented from ilPageContent.

Definition at line 280 of file class.ilPCMediaObject.php.

        {
                return array("pc_mob");
        }

ilPCMediaObject::getMediaObject

(

)

Get Media Object.

Returns

object Media Object

Definition at line 79 of file class.ilPCMediaObject.php.

Referenced by createAlias(), and updateObjectReference().

        {
                return $this->mediaobject;
        }

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ilPCMediaObject::init

(

)

Init page content component.

Reimplemented from ilPageContent.

Definition at line 23 of file class.ilPCMediaObject.php.

References ilPageContent\setType().

        {
                $this->setType("media");
        }

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ilPCMediaObject::readMediaObject

(

$a_mob_id = 0

)

Read/get Media Object.

Parameters

int	media object ID

Definition at line 33 of file class.ilPCMediaObject.php.

References setMediaObject().

        {
                if ($a_mob_id > 0)
                {
                        $mob = new ilObjMediaObject($a_mob_id);
                        $this->setMediaObject($mob);
                }
        }

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static ilPCMediaObject::saveMobUsage (   $a_page,   $a_domdoc,   $a_old_nr = 0  )

static

Save all usages of media objects (media aliases, media objects, internal links)

Parameters

string

$a_xml

xml data of page

Definition at line 362 of file class.ilPCMediaObject.php.

References ilPageContent\$node, ilObjMediaObject\_deleteAllUsages(), ilObject\_lookupType(), and ilObjMediaObject\_saveUsage().

Referenced by afterPageHistoryEntry(), and afterPageUpdate().

        {
                $usages = array();
                
                // media aliases
                $xpath = new DOMXPath($a_domdoc);
                $nodes = $xpath->query('//MediaAlias'); 
                foreach($nodes as $node)
                {
                        $id_arr = explode("_", $node->getAttribute("OriginId"));
                        $mob_id = $id_arr[count($id_arr) - 1];
                        if ($mob_id > 0 && $id_arr[1] == "")
                        {
                                $usages[$mob_id] = true;
                        }
                }

                // media objects
                $xpath = new DOMXPath($a_domdoc);
                $nodes = $xpath->query('//MediaObject/MetaData/General/Identifier');    
                foreach($nodes as $node)
                {
                        $mob_entry = $node->getAttribute("Entry");
                        $mob_arr = explode("_", $mob_entry);
                        $mob_id = $mob_arr[count($mob_arr) - 1];
                        if ($mob_id > 0 && $mob_arr[1] == "")
                        {
                                $usages[$mob_id] = true;
                        }
                }

                // internal links
                $xpath = new DOMXPath($a_domdoc);
                $nodes = $xpath->query("//IntLink[@Type='MediaObject']");       
                foreach($nodes as $node)
                {
                        $mob_target = $node->getAttribute("Target");
                        $mob_arr = explode("_", $mob_target);
//echo "<br>3<br>";
//echo $mob_target."<br>";
//var_dump($mob_arr);
                        $mob_id = $mob_arr[count($mob_arr) - 1];
                        if ($mob_id > 0 && $mob_arr[1] == "")
                        {
                                $usages[$mob_id] = true;
                        }
                }

                include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                ilObjMediaObject::_deleteAllUsages($a_page->getParentType().":pg", $a_page->getId(), $a_old_nr,
                        $a_page->getLanguage());
                foreach($usages as $mob_id => $val)
                {
                        // save usage, if object exists...
                        if (ilObject::_lookupType($mob_id) == "mob")
                        {
                                ilObjMediaObject::_saveUsage($mob_id, $a_page->getParentType().":pg", $a_page->getId(), $a_old_nr,
                                        $a_page->getLanguage());
                        }
                }
                
                return $usages;
        }

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ilPCMediaObject::setClass

(

$a_class

)

Set Style Class of table.

Parameters

string

$a_class

class

Definition at line 236 of file class.ilPCMediaObject.php.

        {
                if (is_object($this->mob_node))
                {
                        $mal_node = $this->mob_node->first_child();
                        if (is_object($mal_node))
                        {
                                if (!empty($a_class))
                                {
                                        $mal_node->set_attribute("Class", $a_class);
                                }
                                else
                                {
                                        if ($mal_node->has_attribute("Class"))
                                        {
                                                $mal_node->remove_attribute("Class");
                                        }
                                }
                        }
                }
        }

ilPCMediaObject::setDom

(

&

$a_dom

)

set dom object

Definition at line 51 of file class.ilPCMediaObject.php.

        {
                $this->dom =& $a_dom;
        }

ilPCMediaObject::setHierId

(

$a_hier_id

)

set hierarchical edit id

Reimplemented from ilPageContent.

Definition at line 59 of file class.ilPCMediaObject.php.

        {
                $this->hier_id = $a_hier_id;
        }

ilPCMediaObject::setMediaObject

(

$a_mediaobject

)

Set Media Object.

Parameters

object

$a_mediaobject

Media Object

Definition at line 69 of file class.ilPCMediaObject.php.

Referenced by createMediaObject(), and readMediaObject().

        {
                $this->mediaobject = $a_mediaobject;
        }

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ilPCMediaObject::setNode

(

&

$a_node

)

Set xml node of page content.

Parameters

object

$a_node

node object

Reimplemented from ilPageContent.

Definition at line 42 of file class.ilPCMediaObject.php.

        {
                parent::setNode($a_node);               // this is the PageContent node
                $this->mob_node =& $a_node->first_child();
        }

ilPCMediaObject::updateObjectReference

(

)

Updates the media object referenced by the media alias.

This makes only sense, after the media object has changed. (-> change object reference function)

Definition at line 210 of file class.ilPCMediaObject.php.

References getMediaObject().

        {
                if (is_object($this->mob_node))
                {
                        $this->mal_node =& $this->mob_node->first_child();
                        if (is_object($this->mal_node) && $this->mal_node->node_name() == "MediaAlias")
                        {
                                $this->mal_node->set_attribute("OriginId", "il__mob_".$this->getMediaObject()->getId());
                        }
                }
        }

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Field Documentation

ilPCMediaObject::$mob_node

Definition at line 18 of file class.ilPCMediaObject.php.

---

The documentation for this class was generated from the following file:

• Services/COPage/classes/class.ilPCMediaObject.php