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<?php |
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/** |
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* @package dompdf |
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* @link https://github.com/dompdf/dompdf |
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* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License |
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*/ |
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namespace Dompdf\Positioner; |
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|
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use Dompdf\FrameDecorator\AbstractFrameDecorator; |
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use Dompdf\FrameReflower\Block; |
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|
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/** |
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* Positions fixely positioned frames |
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*/ |
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class Fixed extends Absolute |
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{ |
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|
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/** |
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* @param AbstractFrameDecorator $frame |
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*/ |
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function position(AbstractFrameDecorator $frame): void |
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{ |
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if ($frame->get_reflower() instanceof Block) { |
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parent::position($frame); |
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} else { |
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// Legacy positioning logic for image and table frames |
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// TODO: Resolve dimensions, margins, and offsets similar to the |
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// block case in the reflowers and use the simplified logic above |
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$style = $frame->get_style(); |
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$root = $frame->get_root(); |
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$initialcb = $root->get_containing_block(); |
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$initialcb_style = $root->get_style(); |
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|
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$p = $frame->find_block_parent(); |
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if ($p) { |
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$p->add_line(); |
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} |
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// Compute the margins of the @page style |
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$margin_top = (float)$initialcb_style->length_in_pt($initialcb_style->margin_top, $initialcb["h"]); |
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$margin_right = (float)$initialcb_style->length_in_pt($initialcb_style->margin_right, $initialcb["w"]); |
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$margin_bottom = (float)$initialcb_style->length_in_pt($initialcb_style->margin_bottom, $initialcb["h"]); |
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$margin_left = (float)$initialcb_style->length_in_pt($initialcb_style->margin_left, $initialcb["w"]); |
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|
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// The needed computed style of the element |
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$height = (float)$style->length_in_pt($style->get_specified("height"), $initialcb["h"]); |
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$width = (float)$style->length_in_pt($style->get_specified("width"), $initialcb["w"]); |
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|
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$top = $style->length_in_pt($style->get_specified("top"), $initialcb["h"]); |
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$right = $style->length_in_pt($style->get_specified("right"), $initialcb["w"]); |
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$bottom = $style->length_in_pt($style->get_specified("bottom"), $initialcb["h"]); |
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$left = $style->length_in_pt($style->get_specified("left"), $initialcb["w"]); |
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|
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$y = $margin_top; |
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if (isset($top)) { |
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$y = (float)$top + $margin_top; |
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if ($top === "auto") { |
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$y = $margin_top; |
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if (isset($bottom) && $bottom !== "auto") { |
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$y = $initialcb["h"] - $bottom - $margin_bottom; |
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if ($frame->is_auto_height()) { |
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$y -= $height; |
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} else { |
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$y -= $frame->get_margin_height(); |
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} |
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} |
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} |
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} |
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|
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$x = $margin_left; |
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if (isset($left)) { |
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$x = (float)$left + $margin_left; |
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if ($left === "auto") { |
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$x = $margin_left; |
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if (isset($right) && $right !== "auto") { |
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$x = $initialcb["w"] - $right - $margin_right; |
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if ($frame->is_auto_width()) { |
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$x -= $width; |
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} else { |
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$x -= $frame->get_margin_width(); |
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} |
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} |
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} |
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} |
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|
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$frame->set_position($x, $y); |
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|
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foreach ($frame->get_children() as $child) { |
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$child->set_position($x, $y); |
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} |
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} |
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} |
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} |
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|
