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wangjinlei
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vendor/phpoffice/phpword/src/PhpWord/Media.php
vendored
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210
vendor/phpoffice/phpword/src/PhpWord/Media.php
vendored
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<?php
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/**
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* This file is part of PHPWord - A pure PHP library for reading and writing
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* word processing documents.
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*
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* PHPWord is free software distributed under the terms of the GNU Lesser
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* General Public License version 3 as published by the Free Software Foundation.
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*
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* For the full copyright and license information, please read the LICENSE
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* file that was distributed with this source code. For the full list of
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* contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
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*
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* @see https://github.com/PHPOffice/PHPWord
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*
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* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3
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*/
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namespace PhpOffice\PhpWord;
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use PhpOffice\PhpWord\Element\Image;
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use PhpOffice\PhpWord\Exception\Exception;
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/**
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* Media collection.
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*/
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class Media
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{
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/**
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* Media elements.
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*
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* @var array
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*/
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private static $elements = [];
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/**
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* Add new media element.
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*
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* @since 0.10.0
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* @since 0.9.2
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*
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* @param string $container section|headerx|footerx|footnote|endnote
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* @param string $mediaType image|object|link
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* @param string $source
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* @param \PhpOffice\PhpWord\Element\Image $image
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*
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* @return int
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*/
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public static function addElement($container, $mediaType, $source, ?Image $image = null)
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{
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// Assign unique media Id and initiate media container if none exists
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$mediaId = md5($container . $source);
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if (!isset(self::$elements[$container])) {
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self::$elements[$container] = [];
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}
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// Add media if not exists or point to existing media
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if (!isset(self::$elements[$container][$mediaId])) {
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$mediaCount = self::countElements($container);
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$mediaTypeCount = self::countElements($container, $mediaType);
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++$mediaTypeCount;
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$rId = ++$mediaCount;
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$target = null;
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$mediaData = ['mediaIndex' => $mediaTypeCount];
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switch ($mediaType) {
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// Images
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case 'image':
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if (null === $image) {
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throw new Exception('Image object not assigned.');
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}
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$isMemImage = $image->isMemImage();
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$extension = $image->getImageExtension();
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$mediaData['imageExtension'] = $extension;
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$mediaData['imageType'] = $image->getImageType();
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if ($isMemImage) {
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$mediaData['isMemImage'] = true;
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$mediaData['createFunction'] = $image->getImageCreateFunction();
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$mediaData['imageFunction'] = $image->getImageFunction();
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}
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$target = "{$container}_image{$mediaTypeCount}.{$extension}";
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$image->setTarget($target);
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$image->setMediaIndex($mediaTypeCount);
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break;
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// Objects
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case 'object':
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$target = "{$container}_oleObject{$mediaTypeCount}.bin";
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break;
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// Links
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case 'link':
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$target = $source;
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break;
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}
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$mediaData['source'] = $source;
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$mediaData['target'] = $target;
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$mediaData['type'] = $mediaType;
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$mediaData['rID'] = $rId;
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self::$elements[$container][$mediaId] = $mediaData;
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return $rId;
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}
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$mediaData = self::$elements[$container][$mediaId];
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if (null !== $image) {
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$image->setTarget($mediaData['target']);
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$image->setMediaIndex($mediaData['mediaIndex']);
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}
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return $mediaData['rID'];
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}
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/**
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* Get media elements count.
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*
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* @param string $container section|headerx|footerx|footnote|endnote
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* @param string $mediaType image|object|link
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*
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* @return int
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*
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* @since 0.10.0
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*/
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public static function countElements($container, $mediaType = null)
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{
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$mediaCount = 0;
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if (isset(self::$elements[$container])) {
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foreach (self::$elements[$container] as $mediaData) {
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if (null !== $mediaType) {
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if ($mediaType == $mediaData['type']) {
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++$mediaCount;
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}
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} else {
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++$mediaCount;
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}
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}
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}
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return $mediaCount;
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}
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/**
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* Get media elements.
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*
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* @param string $container section|headerx|footerx|footnote|endnote
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* @param string $type image|object|link
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*
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* @return array
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*
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* @since 0.10.0
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*/
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public static function getElements($container, $type = null)
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{
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$elements = [];
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// If header/footer, search for headerx and footerx where x is number
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if ($container == 'header' || $container == 'footer') {
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foreach (self::$elements as $key => $val) {
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if (substr($key, 0, 6) == $container) {
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$elements[$key] = $val;
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}
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}
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return $elements;
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}
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if (!isset(self::$elements[$container])) {
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return $elements;
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}
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return self::getElementsByType($container, $type);
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}
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/**
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* Get elements by media type.
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*
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* @param string $container section|footnote|endnote
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* @param string $type image|object|link
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*
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* @return array
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*
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* @since 0.11.0 Splitted from `getElements` to reduce complexity
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*/
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private static function getElementsByType($container, $type = null)
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{
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$elements = [];
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foreach (self::$elements[$container] as $key => $data) {
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if ($type !== null) {
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if ($type == $data['type']) {
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$elements[$key] = $data;
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}
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} else {
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$elements[$key] = $data;
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}
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}
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return $elements;
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}
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/**
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* Reset media elements.
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*/
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public static function resetElements(): void
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{
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self::$elements = [];
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}
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}
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