Esempio n. 1
0
 public function __construct($html, $encoding, $pageNumber, $paragraphsPerPage = HTMLPager::PARAGRAPH_LIMIT)
 {
     $dom = new DOMDocument();
     libxml_use_internal_errors(true);
     libxml_clear_errors();
     // clean up any errors belonging to other operations
     $dom->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', $encoding));
     foreach (libxml_get_errors() as $error) {
         Kurogo::log(LOG_WARNING, "HTMLPager got loadHTML warning (line {$error->line}; column {$error->column}) {$error->message}", 'data');
     }
     libxml_clear_errors();
     // free up memory associated with the errors
     libxml_use_internal_errors(false);
     $body = $dom->getElementsByTagName("body")->item(0);
     $currentPage = NULL;
     $pages = array();
     $currentParagraphCount = 0;
     foreach ($body->childNodes as $node) {
         if ($currentPage == NULL) {
             // need to start a new page
             if ($node->nodeName == "#text" && trim($node->nodeValue) == "") {
                 continue;
                 // this node is blank so do not start a new page yet
             }
             $currentPage = new HTMLPage();
             $pages[] = $currentPage;
         }
         $currentPage->addNode($node);
         if ($node->nodeName == "p") {
             $currentParagraphCount++;
         }
         if ($currentParagraphCount == $paragraphsPerPage) {
             $currentPage = NULL;
             $currentParagraphCount = 0;
         }
     }
     $this->pages = $pages;
     $this->pageCount = count($pages);
     if ($pageNumber >= 0 && $pageNumber < $this->pageCount) {
         $this->pageNumber = $pageNumber;
     }
 }