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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;
use PhpOffice\PhpWord\Element\Image;
use PhpOffice\PhpWord\Exception\Exception;
/**
* Media collection
*/
class Media
{
/**
* Media elements
*
* @var array
*/
private static $elements = array();
/**
* Add new media element
*
* @param string $container section|headerx|footerx|footnote|endnote
* @param string $mediaType image|object|link
* @param string $source
* @param \PhpOffice\PhpWord\Element\Image $image
* @return integer
* @throws \PhpOffice\PhpWord\Exception\Exception
* @since 0.9.2
* @since 0.10.0
*/
public static function addElement($container, $mediaType, $source, Image $image = null)
{
// Assign unique media Id and initiate media container if none exists
$mediaId = md5($container . $source);
if (!isset(self::$elements[$container])) {
self::$elements[$container] = array();
}
// Add media if not exists or point to existing media
if (!isset(self::$elements[$container][$mediaId])) {
$mediaCount = self::countElements($container);
$mediaTypeCount = self::countElements($container, $mediaType);
$mediaTypeCount++;
$rId = ++$mediaCount;
$target = null;
$mediaData = array('mediaIndex' => $mediaTypeCount);
switch ($mediaType) {
// Images
case 'image':
if (is_null($image)) {
throw new Exception('Image object not assigned.');
}
$isMemImage = $image->isMemImage();
$extension = $image->getImageExtension();
$mediaData['imageExtension'] = $extension;
$mediaData['imageType'] = $image->getImageType();
if ($isMemImage) {
$mediaData['isMemImage'] = true;
$mediaData['createFunction'] = $image->getImageCreateFunction();
$mediaData['imageFunction'] = $image->getImageFunction();
}
$target = "{$container}_image{$mediaTypeCount}.{$extension}";
$image->setTarget($target);
$image->setMediaIndex($mediaTypeCount);
break;
// Objects
case 'object':
$target = "{$container}_oleObject{$mediaTypeCount}.bin";
break;
// Links
case 'link':
$target = $source;
break;
}
$mediaData['source'] = $source;
$mediaData['target'] = $target;
$mediaData['type'] = $mediaType;
$mediaData['rID'] = $rId;
self::$elements[$container][$mediaId] = $mediaData;
return $rId;
} else {
$mediaData = self::$elements[$container][$mediaId];
if (!is_null($image)) {
$image->setTarget($mediaData['target']);
$image->setMediaIndex($mediaData['mediaIndex']);
}
return $mediaData['rID'];
}
}
/**
* Get media elements count
*
* @param string $container section|headerx|footerx|footnote|endnote
* @param string $mediaType image|object|link
* @return integer
* @since 0.10.0
*/
public static function countElements($container, $mediaType = null)
{
$mediaCount = 0;
if (isset(self::$elements[$container])) {
foreach (self::$elements[$container] as $mediaData) {
if (!is_null($mediaType)) {
if ($mediaType == $mediaData['type']) {
$mediaCount++;
}
} else {
$mediaCount++;
}
}
}
return $mediaCount;
}
/**
* Get media elements
*
* @param string $container section|headerx|footerx|footnote|endnote
* @param string $type image|object|link
* @return array
* @since 0.10.0
*/
public static function getElements($container, $type = null)
{
$elements = array();
// If header/footer, search for headerx and footerx where x is number
if ($container == 'header' || $container == 'footer') {
foreach (self::$elements as $key => $val) {
if (substr($key, 0, 6) == $container) {
$elements[$key] = $val;
}
}
return $elements;
} else {
if (!isset(self::$elements[$container])) {
return $elements;
}
return self::getElementsByType($container, $type);
}
}
/**
* Get elements by media type
*
* @param string $container section|footnote|endnote
* @param string $type image|object|link
* @return array
* @since 0.11.0 Splitted from `getElements` to reduce complexity
*/
private static function getElementsByType($container, $type = null)
{
$elements = array();
foreach (self::$elements[$container] as $key => $data) {
if ($type !== null) {
if ($type == $data['type']) {
$elements[$key] = $data;
}
} else {
$elements[$key] = $data;
}
}
return $elements;
}
/**
* Reset media elements
*/
public static function resetElements()
{
self::$elements = array();
}
/**
* Add new Section Media Element
*
* @param string $src
* @param string $type
* @param \PhpOffice\PhpWord\Element\Image $image
* @return integer
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function addSectionMediaElement($src, $type, Image $image = null)
{
return self::addElement('section', $type, $src, $image);
}
/**
* Add new Section Link Element
*
* @param string $linkSrc
* @return integer
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function addSectionLinkElement($linkSrc)
{
return self::addElement('section', 'link', $linkSrc);
}
/**
* Get Section Media Elements
*
* @param string $key
* @return array
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function getSectionMediaElements($key = null)
{
return self::getElements('section', $key);
}
/**
* Get Section Media Elements Count
*
* @param string $key
* @return integer
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function countSectionMediaElements($key = null)
{
return self::countElements('section', $key);
}
/**
* Add new Header Media Element
*
* @param integer $headerCount
* @param string $src
* @param \PhpOffice\PhpWord\Element\Image $image
* @return integer
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function addHeaderMediaElement($headerCount, $src, Image $image = null)
{
return self::addElement("header{$headerCount}", 'image', $src, $image);
}
/**
* Get Header Media Elements Count
*
* @param string $key
* @return integer
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function countHeaderMediaElements($key)
{
return self::countElements($key);
}
/**
* Get Header Media Elements
*
* @return array
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function getHeaderMediaElements()
{
return self::getElements('header');
}
/**
* Add new Footer Media Element
*
* @param integer $footerCount
* @param string $src
* @param \PhpOffice\PhpWord\Element\Image $image
* @return integer
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function addFooterMediaElement($footerCount, $src, Image $image = null)
{
return self::addElement("footer{$footerCount}", 'image', $src, $image);
}
/**
* Get Footer Media Elements Count
*
* @param string $key
* @return integer
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function countFooterMediaElements($key)
{
return self::countElements($key);
}
/**
* Get Footer Media Elements
*
* @return array
* @deprecated 0.10.0
* @codeCoverageIgnore
*/
public static function getFooterMediaElements()
{
return self::getElements('footer');
}
}