woocommerce-pos / vendor_prefixed / dompdf / dompdf / src / Renderer.php

Renderer.php in WCPOS – Point of Sale (POS) plugin for WooCommerce 1.10.24, at vendor_prefixed/dompdf/dompdf/src/Renderer.php

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1	<?php
2
3	/**
4	* @package dompdf
5	* @link https://github.com/dompdf/dompdf
6	* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
7	*/
8	namespace WCPOS\Vendor\Dompdf;
9
10	use WCPOS\Vendor\Dompdf\Renderer\AbstractRenderer;
11	use WCPOS\Vendor\Dompdf\Renderer\Block;
12	use WCPOS\Vendor\Dompdf\Renderer\Image;
13	use WCPOS\Vendor\Dompdf\Renderer\Inline;
14	use WCPOS\Vendor\Dompdf\Renderer\ListBullet;
15	use WCPOS\Vendor\Dompdf\Renderer\TableCell;
16	use WCPOS\Vendor\Dompdf\Renderer\TableRow;
17	use WCPOS\Vendor\Dompdf\Renderer\TableRowGroup;
18	use WCPOS\Vendor\Dompdf\Renderer\Text;
19	/**
20	* Concrete renderer
21	*
22	* Instantiates several specific renderers in order to render any given frame.
23	*
24	* @package dompdf
25	*/
26	class Renderer extends AbstractRenderer
27	{
28	/**
29	* Array of renderers for specific frame types
30	*
31	* @var AbstractRenderer[]
32	*/
33	protected $_renderers;
34	/**
35	* Cache of the callbacks array
36	*
37	* @var array
38	*/
39	private $_callbacks;
40	/**
41	* Advance the canvas to the next page
42	*/
43	function new_page()
44	{
45	$this->_canvas->new_page();
46	}
47	/**
48	* Render frames recursively
49	*
50	* @param Frame $frame the frame to render
51	*/
52	public function render(Frame $frame)
53	{
54	global $_dompdf_debug;
55	$this->_check_callbacks("begin_frame", $frame);
56	if ($_dompdf_debug) {
57	echo $frame;
58	\flush();
59	}
60	$style = $frame->get_style();
61	if (\in_array($style->visibility, ["hidden", "collapse"], \true)) {
62	return;
63	}
64	$display = $style->display;
65	$transformList = $style->transform;
66	$hasTransform = $transformList !== [];
67	// Starts the CSS transformation
68	if ($hasTransform) {
69	$this->_canvas->save();
70	[$x, $y] = $frame->get_padding_box();
71	[$originX, $originY] = $style->transform_origin;
72	$w = (float) $style->length_in_pt($style->width);
73	$h = (float) $style->length_in_pt($style->height);
74	foreach ($transformList as $transform) {
75	[$function, $values] = $transform;
76	if ($function === "matrix") {
77	$function = "transform";
78	} elseif ($function === "translate") {
79	$values[0] = $style->length_in_pt($values[0], $w);
80	$values[1] = $style->length_in_pt($values[1], $h);
81	}
82	$values[] = $x + $style->length_in_pt($originX, $w);
83	$values[] = $y + $style->length_in_pt($originY, $h);
84	\call_user_func_array([$this->_canvas, $function], $values);
85	}
86	}
87	switch ($display) {
88	case "block":
89	case "list-item":
90	case "inline-block":
91	case "table":
92	case "inline-table":
93	$this->_render_frame("block", $frame);
94	break;
95	case "inline":
96	if ($frame->is_text_node()) {
97	$this->_render_frame("text", $frame);
98	} else {
99	$this->_render_frame("inline", $frame);
100	}
101	break;
102	case "table-cell":
103	$this->_render_frame("table-cell", $frame);
104	break;
105	case "table-row":
106	$this->_render_frame("table-row", $frame);
107	break;
108	case "table-row-group":
109	case "table-header-group":
110	case "table-footer-group":
111	$this->_render_frame("table-row-group", $frame);
112	break;
113	case "-dompdf-list-bullet":
114	$this->_render_frame("list-bullet", $frame);
115	break;
116	case "-dompdf-image":
117	$this->_render_frame("image", $frame);
118	break;
119	case "none":
120	$node = $frame->get_node();
121	if ($node->nodeName === "script") {
122	if ($node->getAttribute("type") === "text/php" \|\| $node->getAttribute("language") === "php") {
123	// Evaluate embedded php scripts
124	$this->_render_frame("php", $frame);
125	} elseif ($node->getAttribute("type") === "text/javascript" \|\| $node->getAttribute("language") === "javascript") {
126	// Insert JavaScript
127	$this->_render_frame("javascript", $frame);
128	}
129	}
130	// Don't render children, so skip to next iter
131	return;
132	default:
133	break;
134	}
135	// Starts the overflow: hidden box
136	if ($style->overflow === "hidden") {
137	$padding_box = $frame->get_padding_box();
138	[$x, $y, $w, $h] = $padding_box;
139	$style = $frame->get_style();
140	if ($style->has_border_radius()) {
141	$border_box = $frame->get_border_box();
142	[$tl, $tr, $br, $bl] = $style->resolve_border_radius($border_box, $padding_box);
143	$this->_canvas->clipping_roundrectangle($x, $y, $w, $h, $tl, $tr, $br, $bl);
144	} else {
145	$this->_canvas->clipping_rectangle($x, $y, $w, $h);
146	}
147	}
148	$stack = [];
149	foreach ($frame->get_children() as $child) {
150	// < 0 : negative z-index
151	// = 0 : no z-index, no stacking context
152	// = 1 : stacking context without z-index
153	// > 1 : z-index
154	$child_style = $child->get_style();
155	$child_z_index = $child_style->z_index;
156	$z_index = 0;
157	if ($child_z_index !== "auto") {
158	$z_index = $child_z_index + 1;
159	} elseif ($child_style->float !== "none" \|\| $child->is_positioned()) {
160	$z_index = 1;
161	}
162	$stack[$z_index][] = $child;
163	}
164	\ksort($stack);
165	foreach ($stack as $by_index) {
166	foreach ($by_index as $child) {
167	$this->render($child);
168	}
169	}
170	// Ends the overflow: hidden box
171	if ($style->overflow === "hidden") {
172	$this->_canvas->clipping_end();
173	}
174	if ($hasTransform) {
175	$this->_canvas->restore();
176	}
177	// Check for end frame callback
178	$this->_check_callbacks("end_frame", $frame);
179	}
180	/**
181	* Check for callbacks that need to be performed when a given event
182	* gets triggered on a frame
183	*
184	* @param string $event The type of event
185	* @param Frame $frame The frame that event is triggered on
186	*/
187	protected function _check_callbacks(string $event, Frame $frame) : void
188	{
189	if (!isset($this->_callbacks)) {
190	$this->_callbacks = $this->_dompdf->getCallbacks();
191	}
192	if (isset($this->_callbacks[$event])) {
193	$fs = $this->_callbacks[$event];
194	$canvas = $this->_canvas;
195	$fontMetrics = $this->_dompdf->getFontMetrics();
196	foreach ($fs as $f) {
197	$f($frame, $canvas, $fontMetrics);
198	}
199	}
200	}
201	/**
202	* Render a single frame
203	*
204	* Creates Renderer objects on demand
205	*
206	* @param string $type type of renderer to use
207	* @param Frame $frame the frame to render
208	*/
209	protected function _render_frame($type, $frame)
210	{
211	if (!isset($this->_renderers[$type])) {
212	switch ($type) {
213	case "block":
214	$this->_renderers[$type] = new Block($this->_dompdf);
215	break;
216	case "inline":
217	$this->_renderers[$type] = new Inline($this->_dompdf);
218	break;
219	case "text":
220	$this->_renderers[$type] = new Text($this->_dompdf);
221	break;
222	case "image":
223	$this->_renderers[$type] = new Image($this->_dompdf);
224	break;
225	case "table-cell":
226	$this->_renderers[$type] = new TableCell($this->_dompdf);
227	break;
228	case "table-row":
229	$this->_renderers[$type] = new TableRow($this->_dompdf);
230	break;
231	case "table-row-group":
232	$this->_renderers[$type] = new TableRowGroup($this->_dompdf);
233	break;
234	case "list-bullet":
235	$this->_renderers[$type] = new ListBullet($this->_dompdf);
236	break;
237	case "php":
238	$this->_renderers[$type] = new PhpEvaluator($this->_canvas);
239	break;
240	case "javascript":
241	$this->_renderers[$type] = new JavascriptEmbedder($this->_dompdf);
242	break;
243	}
244	}
245	$this->_renderers[$type]->render($frame);
246	}
247	}
248