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<?php
/**
* This file is part of PHPWord - A pure PHP library for reading and writing
* word processing documents.
*
* PHPWord is free software distributed under the terms of the GNU Lesser
* General Public License version 3 as published by the Free Software Foundation.
*
* For the full copyright and license information, please read the LICENSE
* file that was distributed with this source code. For the full list of
* contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
*
* @link https://github.com/PHPOffice/PHPWord
* @copyright 2010-2014 PHPWord contributors
* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3
*/
namespace PhpOffice\PhpWord\Element;
use PhpOffice\PhpWord\Media;
use PhpOffice\PhpWord\PhpWord;
use PhpOffice\PhpWord\Style;
/**
* Element abstract class
*
* @since 0.10.0
*/
abstract class AbstractElement
{
/**
* PhpWord object
*
* @var \PhpOffice\PhpWord\PhpWord
*/
protected $phpWord;
/**
* Section Id
*
* @var int
*/
protected $sectionId;
/**
* Document part type: Section|Header|Footer|Footnote|Endnote
*
* Used by textrun and cell container to determine where the element is
* located because it will affect the availability of other element,
* e.g. footnote will not be available when $docPart is header or footer.
*
* @var string
*/
protected $docPart = 'Section';
/**
* Document part Id
*
* For header and footer, this will be = ($sectionId - 1) * 3 + $index
* because the max number of header/footer in every page is 3, i.e.
* AUTO, FIRST, and EVEN (AUTO = ODD)
*
* @var int
*/
protected $docPartId = 1;
/**
* Index of element in the elements collection (start with 1)
*
* @var int
*/
protected $elementIndex = 1;
/**
* Unique Id for element
*
* @var int
*/
protected $elementId;
/**
* Relation Id
*
* @var int
*/
protected $relationId;
/**
* Depth of table container nested level; Primarily used for RTF writer/reader
*
* 0 = Not in a table; 1 = in a table; 2 = in a table inside another table, etc.
*
* @var int
*/
private $nestedLevel = 0;
/**
* Parent container type
*
* @var string
*/
private $parentContainer;
/**
* Has media relation flag; true for Link, Image, and Object
*
* @var bool
*/
protected $mediaRelation = false;
/**
* Is part of collection; true for Title, Footnote, Endnote, and Chart
*
* @var bool
*/
protected $collectionRelation = false;
/**
* Get PhpWord
*
* @return \PhpOffice\PhpWord\PhpWord
*/
public function getPhpWord()
{
return $this->phpWord;
}
/**
* Set PhpWord as reference.
*
* @param \PhpOffice\PhpWord\PhpWord $phpWord
* @return void
*/
public function setPhpWord(PhpWord $phpWord = null)
{
$this->phpWord = $phpWord;
}
/**
* Get section number
*
* @return int
*/
public function getSectionId()
{
return $this->sectionId;
}
/**
* Set doc part.
*
* @param string $docPart
* @param int $docPartId
* @return void
*/
public function setDocPart($docPart, $docPartId = 1)
{
$this->docPart = $docPart;
$this->docPartId = $docPartId;
}
/**
* Get doc part
*
* @return string
*/
public function getDocPart()
{
return $this->docPart;
}
/**
* Get doc part Id
*
* @return int
*/
public function getDocPartId()
{
return $this->docPartId;
}
/**
* Return media element (image, object, link) container name
*
* @return string section|headerx|footerx|footnote|endnote
*/
private function getMediaPart()
{
$mediaPart = $this->docPart;
if ($mediaPart == 'Header' || $mediaPart == 'Footer') {
$mediaPart .= $this->docPartId;
}
return strtolower($mediaPart);
}
/**
* Get element index
*
* @return int
*/
public function getElementIndex()
{
return $this->elementIndex;
}
/**
* Set element index.
*
* @param int $value
* @return void
*/
public function setElementIndex($value)
{
$this->elementIndex = $value;
}
/**
* Get element unique ID
*
* @return string
*/
public function getElementId()
{
return $this->elementId;
}
/**
* Set element unique ID from 6 first digit of md5.
*
* @return void
*/
public function setElementId()
{
$this->elementId = substr(md5(rand()), 0, 6);
}
/**
* Get relation Id
*
* @return int
*/
public function getRelationId()
{
return $this->relationId;
}
/**
* Set relation Id.
*
* @param int $value
* @return void
*/
public function setRelationId($value)
{
$this->relationId = $value;
}
/**
* Get nested level
*
* @return int
*/
public function getNestedLevel()
{
return $this->nestedLevel;
}
/**
* Set parent container
*
* Passed parameter should be a container, except for Table (contain Row) and Row (contain Cell)
*
* @param \PhpOffice\PhpWord\Element\AbstractElement $container
* @return void
*/
public function setParentContainer(AbstractElement $container)
{
$this->parentContainer = substr(get_class($container), strrpos(get_class($container), '\\') + 1);
// Set nested level
$this->nestedLevel = $container->getNestedLevel();
if ($this->parentContainer == 'Cell') {
$this->nestedLevel++;
}
// Set phpword
$this->setPhpWord($container->getPhpWord());
// Set doc part
if (!$this instanceof Footnote) {
$this->setDocPart($container->getDocPart(), $container->getDocPartId());
}
$this->setMediaRelation();
$this->setCollectionRelation();
}
/**
* Set relation Id for media elements (link, image, object; legacy of OOXML)
*
* - Image element needs to be passed to Media object
* - Icon needs to be set for Object element
*
* @return void
*/
private function setMediaRelation()
{
if (!$this instanceof Link && !$this instanceof Image && !$this instanceof Object) {
return;
}
$elementName = substr(get_class($this), strrpos(get_class($this), '\\') + 1);
$mediaPart = $this->getMediaPart();
$source = $this->getSource();
$image = null;
if ($this instanceof Image) {
$image = $this;
}
$rId = Media::addElement($mediaPart, strtolower($elementName), $source, $image);
$this->setRelationId($rId);
if ($this instanceof Object) {
$icon = $this->getIcon();
$rId = Media::addElement($mediaPart, 'image', $icon, new Image($icon));
$this->setImageRelationId($rId);
}
}
/**
* Set relation Id for elements that will be registered in the Collection subnamespaces.
*
* @return void
*/
private function setCollectionRelation()
{
if ($this->collectionRelation === true && $this->phpWord instanceof PhpWord) {
$elementName = substr(get_class($this), strrpos(get_class($this), '\\') + 1);
$addMethod = "add{$elementName}";
$rId = $this->phpWord->$addMethod($this);
$this->setRelationId($rId);
}
}
/**
* Check if element is located in Section doc part (as opposed to Header/Footer)
*
* @return bool
*/
public function isInSection()
{
return ($this->docPart == 'Section');
}
/**
* Set new style value
*
* @param mixed $styleObject Style object
* @param mixed $styleValue Style value
* @param bool $returnObject Always return object
* @return mixed
*/
protected function setNewStyle($styleObject, $styleValue = null, $returnObject = false)
{
if (!is_null($styleValue) && is_array($styleValue)) {
$styleObject->setStyleByArray($styleValue);
$style = $styleObject;
} else {
$style = $returnObject ? $styleObject : $styleValue;
}
return $style;
}
/**
* Set enum value
*
* @param mixed $value
* @param array $enum
* @param mixed $default
* @return mixed
* @throws \InvalidArgumentException
* @todo Merge with the same method in AbstractStyle
*/
protected function setEnumVal($value = null, $enum = array(), $default = null)
{
if ($value != null && trim($value) != '' && !empty($enum) && !in_array($value, $enum)) {
throw new \InvalidArgumentException("Invalid style value: {$value}");
} elseif ($value === null || trim($value) == '') {
$value = $default;
}
return $value;
}
}