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<?php |
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|
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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 WCPOS\Vendor\Dompdf\FrameReflower; |
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|
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use WCPOS\Vendor\Dompdf\FrameDecorator\Block as BlockFrameDecorator; |
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use WCPOS\Vendor\Dompdf\FrameDecorator\Inline as InlineFrameDecorator; |
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use WCPOS\Vendor\Dompdf\FrameDecorator\Text as TextFrameDecorator; |
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/** |
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* Reflows inline frames |
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* |
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* @package dompdf |
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*/ |
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class Inline extends AbstractFrameReflower |
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{ |
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/** |
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* Inline constructor. |
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* @param InlineFrameDecorator $frame |
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*/ |
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function __construct(InlineFrameDecorator $frame) |
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{ |
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parent::__construct($frame); |
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} |
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/** |
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* Handle reflow of empty inline frames. |
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* |
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* Regular inline frames are positioned together with their text (or inline) |
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* children after child reflow. Empty inline frames have no children that |
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* could determine the positioning, so they need to be handled separately. |
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* |
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* @param BlockFrameDecorator $block |
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*/ |
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protected function reflow_empty(BlockFrameDecorator $block) : void |
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{ |
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/** @var InlineFrameDecorator */ |
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$frame = $this->_frame; |
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$style = $frame->get_style(); |
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// Resolve width, so the margin width can be checked |
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$style->set_used("width", 0.0); |
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$cb = $frame->get_containing_block(); |
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$line = $block->get_current_line_box(); |
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$width = $frame->get_margin_width(); |
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if ($width > $cb["w"] - $line->left - $line->w - $line->right) { |
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$block->add_line(); |
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// Find the appropriate inline ancestor to split |
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$child = $frame; |
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$p = $child->get_parent(); |
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while ($p instanceof InlineFrameDecorator && !$child->get_prev_sibling()) { |
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$child = $p; |
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$p = $p->get_parent(); |
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} |
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if ($p instanceof InlineFrameDecorator) { |
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// Split parent and stop current reflow. Reflow continues |
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// via child-reflow loop of split parent |
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$p->split($child); |
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return; |
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} |
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} |
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$frame->position(); |
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$block->add_frame_to_line($frame); |
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} |
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/** |
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* @param BlockFrameDecorator|null $block |
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*/ |
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function reflow(?BlockFrameDecorator $block = null) |
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{ |
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/** @var InlineFrameDecorator */ |
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$frame = $this->_frame; |
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// Check if a page break is forced |
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$page = $frame->get_root(); |
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$page->check_forced_page_break($frame); |
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if ($page->is_full()) { |
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return; |
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} |
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// Counters and generated content |
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$this->_set_content(); |
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$style = $frame->get_style(); |
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// Resolve auto margins |
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// https://www.w3.org/TR/CSS21/visudet.html#inline-width |
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// https://www.w3.org/TR/CSS21/visudet.html#inline-non-replaced |
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if ($style->margin_left === "auto") { |
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$style->set_used("margin_left", 0.0); |
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} |
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if ($style->margin_right === "auto") { |
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$style->set_used("margin_right", 0.0); |
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} |
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if ($style->margin_top === "auto") { |
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$style->set_used("margin_top", 0.0); |
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} |
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if ($style->margin_bottom === "auto") { |
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$style->set_used("margin_bottom", 0.0); |
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} |
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// Handle line breaks |
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if ($frame->get_node()->nodeName === "br") { |
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if ($block) { |
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$line = $block->get_current_line_box(); |
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$frame->set_containing_line($line); |
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$block->maximize_line_height($frame->get_margin_height(), $frame); |
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$block->add_line(\true); |
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$next = $frame->get_next_sibling(); |
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$p = $frame->get_parent(); |
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if ($next && $p instanceof InlineFrameDecorator) { |
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$p->split($next); |
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} |
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} |
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return; |
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} |
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// Handle empty inline frames |
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if (!$frame->get_first_child()) { |
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if ($block) { |
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$this->reflow_empty($block); |
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} |
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return; |
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} |
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// Add margin, padding & border width to the first and last children, |
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// so they are accounted for during text layout |
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if (($f = $frame->get_first_child()) && $f instanceof TextFrameDecorator) { |
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$f_style = $f->get_style(); |
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$f_style->margin_left = $style->margin_left; |
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$f_style->padding_left = $style->padding_left; |
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$f_style->border_left_width = $style->border_left_width; |
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} |
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if (($l = $frame->get_last_child()) && $l instanceof TextFrameDecorator) { |
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$l_style = $l->get_style(); |
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$l_style->margin_right = $style->margin_right; |
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$l_style->padding_right = $style->padding_right; |
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$l_style->border_right_width = $style->border_right_width; |
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} |
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$frame->position(); |
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$cb = $frame->get_containing_block(); |
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// Set the containing blocks and reflow each child. The containing |
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// block is not changed by line boxes. |
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foreach ($frame->get_children() as $child) { |
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$child->set_containing_block($cb); |
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$child->reflow($block); |
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// Stop reflow if the frame has been reset by a line or page break |
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// due to child reflow |
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if (!$frame->content_set) { |
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return; |
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} |
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} |
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// Assume the position of the first in-flow child, otherwise use the |
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// fallback position that was set before child reflow |
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$child = $frame->get_first_child(); |
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while ($child && !$child->is_in_flow()) { |
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$child = $child->get_next_sibling(); |
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} |
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if ($child) { |
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[$x, $y] = $child->get_position(); |
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$frame->set_position($x, $y); |
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} |
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// Handle relative positioning |
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foreach ($frame->get_children() as $child) { |
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$this->position_relative($child); |
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} |
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if ($block) { |
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$block->add_frame_to_line($frame); |
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} |
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} |
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} |
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