vendor/dompdf/dompdf/src/Positioner/Inline.php

   1 <?php
   2 /**
   3  * @package dompdf
   4  * @link    http://dompdf.github.com/
   5  * @author  Benj Carson <benjcarson@digitaljunkies.ca>
   6  * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
   7  */
   8
   9 namespace Dompdf\Positioner;
  10
  11 use Dompdf\FrameDecorator\AbstractFrameDecorator;
  12 use Dompdf\FrameDecorator\Inline as InlineFrameDecorator;
  13 use Dompdf\Exception;
  14
  15 /**
  16  * Positions inline frames
  17  *
  18  * @package dompdf
  19  */
  20 class Inline extends AbstractPositioner
  21 {
  22
  23     /**
  24      * @param AbstractFrameDecorator $frame
  25      * @throws Exception
  26      */
  27     function position(AbstractFrameDecorator $frame)
  28     {
  29         /**
  30          * Find our nearest block level parent and access its lines property.
  31          * @var BlockFrameDecorator
  32          */
  33         $p = $frame->find_block_parent();
  34
  35         // Debugging code:
  36
  37         // Helpers::pre_r("\nPositioning:");
  38         // Helpers::pre_r("Me: " . $frame->get_node()->nodeName . " (" . spl_object_hash($frame->get_node()) . ")");
  39         // Helpers::pre_r("Parent: " . $p->get_node()->nodeName . " (" . spl_object_hash($p->get_node()) . ")");
  40
  41         // End debugging
  42
  43         if (!$p) {
  44             throw new Exception("No block-level parent found.  Not good.");
  45         }
  46
  47         $f = $frame;
  48
  49         $cb = $f->get_containing_block();
  50         $line = $p->get_current_line_box();
  51
  52         // Skip the page break if in a fixed position element
  53         $is_fixed = false;
  54         while ($f = $f->get_parent()) {
  55             if ($f->get_style()->position === "fixed") {
  56                 $is_fixed = true;
  57                 break;
  58             }
  59         }
  60
  61         $f = $frame;
  62
  63         if (!$is_fixed && $f->get_parent() &&
  64             $f->get_parent() instanceof InlineFrameDecorator &&
  65             $f->is_text_node()
  66         ) {
  67             $min_max = $f->get_reflower()->get_min_max_width();
  68
  69             // If the frame doesn't fit in the current line, a line break occurs
  70             if ($min_max["min"] > ($cb["w"] - $line->left - $line->w - $line->right)) {
  71                 $p->add_line();
  72             }
  73         }
  74
  75         $f->set_position($cb["x"] + $line->w, $line->y);
  76     }
  77 }