mirror of
https://github.com/wallabag/wallabag.git
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137 lines
3.3 KiB
PHP
137 lines
3.3 KiB
PHP
<?php
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/**
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* Description of MultipleFileHandler
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*
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* @author Sander
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*/
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abstract class MultipleFileHandler extends ContentProvider {
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/**
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* @var array
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*/
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private $files = array();
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/**
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* @var array
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*/
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private $images = array();
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/**
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* @var array
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*/
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private $metadata = array();
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private $toc = array();
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/**
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* Add a page to the file
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* @param string $contents Contents of the chapter/page
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* @param string $title Optional, title of the chapter/page. Will automatically add a h2
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* before the contents
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*/
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public function addPage($contents, $title = ""){
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if($title != ""){
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//TODO: Add in TOC (and add a way of generating it
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$contents = "<h2>".$title."</h2>".$contents."<mbp:pagebreak>";
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}
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$pos = 0;
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if(sizeof($this->toc) > 0){
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$lastToc = $this->toc[sizeof($this->toc)-1];
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$lastFile = $this->files[sizeof($this->files)-1];
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$pos = $lastToc["pos"] + strlen($lastFile) + 1;
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}
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$this->files[] = $contents;
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$this->toc[] = array("title"=>$title, "pos"=>$pos);
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}
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/**
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* Add an image to the file
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* @param string $imageContents Data string containing the binary data of the image
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* @return int The reference of the image
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*/
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public function addImage($imageContents){
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$this->images[] = $imageContents;
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return sizeof($this->images)-1;
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}
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/**
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* Add an image to the file
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* @param string $url Url to the image
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* @return int The reference of the image, false if the image couldn't be downloaded
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*/
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public function addImageFromUrl($url){
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$image = ImageHandler::DownloadImage($url);
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if($image === false) return false;
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return $this->addImage($image);
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}
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/**
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* Set the metadata
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* @param string $key Key
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* @param string $value Value
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*/
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public function setMetadata($key, $value){
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$this->metadata[$key] = $value;
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}
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/**
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* Get the text data to be integrated in the MOBI file
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* @return string
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*/
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public function getTextData(){
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$data = implode("\n", $this->files);
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$begin = "<html><head><guide><reference title='CONTENT' type='toc' filepos=0000000000 /></guide></head><body>";
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$beforeTOC = $begin.$data;
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$tocPos = strlen($beforeTOC);
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$toc = $this->generateTOC(strlen($begin));
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$customBegin = "<html><head><guide><reference title='CONTENT' type='toc' filepos=".$this->forceLength($tocPos, 10)." /></guide></head><body>";
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$data = $customBegin.$data.$toc."</body></html>";
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return $data;
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}
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public function forceLength($n, $l){
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$str = $n."";
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$cur = strlen($str);
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while($cur < $l){
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$str = "0".$str;
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$cur++;
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}
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return $str;
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}
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public function generateTOC($base = 0){
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$toc = "<h2>Contents</h2>";
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$toc .= "<blockquote><table summary='Table of Contents'><b><col/><col/><tbody>";
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for($i = 0, $len = sizeof($this->toc); $i < $len; $i++){
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$entry = $this->toc[$i];
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$position = $entry["pos"]+$base;
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$toc .= "<tr><td>".($i+1).".</td><td><a filepos=".$position.">".$entry["title"]."</a></td></tr>";
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}
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$toc .= "</tbody></b></table></blockquote>";
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return $toc;
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}
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/**
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* Get the images (an array containing the jpeg data). Array entry 0 will
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* correspond to image record 0.
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* @return array
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*/
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public function getImages(){
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return $this->images;
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}
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/**
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* Get the metadata in the form of a hashtable (for example, title or author).
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* @return array
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*/
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public function getMetaData(){
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return $this->metadata;
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}
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}
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?>
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