Subversion-Projekte lars-tiefland.php_share

<?php

// $Header: /cvsroot/html2ps/box.iframe.php,v 1.14 2006/12/18 19:44:21 Konstantin Exp $

class IFrameBox extends InlineBlockBox {

  function &create(&$root, &$pipeline) {

    $box =& new IFrameBox($root, $pipeline);

    $box->readCSS($pipeline->get_current_css_state());

    return $box;

  }

  // Note that IFRAME width is NOT determined by its content, thus we need to override 'get_min_width' and

  // 'get_max_width'; they should return the constrained frame width.

  function get_min_width(&$context) {

    return $this->get_max_width($context);

  }

  function get_max_width(&$context) {

    return $this->get_width();

  }

  function IFrameBox(&$root, $pipeline) {

    $this->InlineBlockBox();

    // If NO src attribute specified, just return.

    if (!$root->has_attribute('src') ||

        trim($root->get_attribute('src')) == '') {

      return;

    };

    // Determine the fullly qualified URL of the frame content

    $src = $root->get_attribute('src');

    $url = $pipeline->guess_url($src);

    $data = $pipeline->fetch($url);

    /**

     * If framed page could not be fetched return immediately

     */

    if (is_null($data)) { return; };

    /**

     * Render only iframes containing HTML only

     *

     * Note that content-type header may contain additional information after the ';' sign

     */

    $content_type = $data->get_additional_data('Content-Type');

    $content_type_array = explode(';', $content_type);

    if ($content_type_array[0] != "text/html") { return; };

    $html = $data->get_content();

    // Remove control symbols if any

    $html = preg_replace('/[\x00-\x07]/', "", $html);

    $converter = Converter::create();

    $html = $converter->to_utf8($html, $data->detect_encoding());

    $html = html2xhtml($html);

    $tree = TreeBuilder::build($html);

    // Save current stylesheet, as each frame may load its own stylesheets

    //

    $pipeline->pushCSS();

    $css =& $pipeline->get_current_css();

    $css->scan_styles($tree, $pipeline);

    $frame_root = traverse_dom_tree_pdf($tree);

    $box_child =& create_pdf_box($frame_root, $pipeline);

    $this->add_child($box_child);

    // Restore old stylesheet

    //

    $pipeline->pop_css();

    $pipeline->pop_base_url();

  }

}

?>