Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
100.00% |
51 / 51 |
|
100.00% |
6 / 6 |
CRAP | |
100.00% |
1 / 1 |
| Grid | |
100.00% |
51 / 51 |
|
100.00% |
6 / 6 |
25 | |
100.00% |
1 / 1 |
| build | |
100.00% |
3 / 3 |
|
100.00% |
1 / 1 |
1 | |||
| getRows | |
100.00% |
1 / 1 |
|
100.00% |
1 / 1 |
1 | |||
| getColumnCount | |
100.00% |
1 / 1 |
|
100.00% |
1 / 1 |
1 | |||
| getRowCount | |
100.00% |
1 / 1 |
|
100.00% |
1 / 1 |
1 | |||
| parse | |
100.00% |
35 / 35 |
|
100.00% |
1 / 1 |
13 | |||
| collectRowNodes | |
100.00% |
10 / 10 |
|
100.00% |
1 / 1 |
8 | |||
| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <nick@popphp.org> |
| 8 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Pdf\Build\Html\Table; |
| 16 | |
| 17 | use Pop\Dom\Child; |
| 18 | |
| 19 | /** |
| 20 | * Pdf HTML table grid class |
| 21 | * |
| 22 | * Walks a <table> DOM node into an explicit [row][col] grid, handling |
| 23 | * colspan/rowspan slot-claiming and header-row detection (<thead>, or a |
| 24 | * <tr> whose cells are all <th>). |
| 25 | * |
| 26 | * @category Pop |
| 27 | * @package Pop\Pdf |
| 28 | * @author Nick Sagona, III <nick@popphp.org> |
| 29 | * @copyright Copyright (c) 2009-2026 Nick Sagona, III |
| 30 | * @license https://www.popphp.org/license New BSD License |
| 31 | * @version 6.0.0 |
| 32 | */ |
| 33 | class Grid |
| 34 | { |
| 35 | |
| 36 | /** |
| 37 | * Rows, keyed by zero-based row index: ['cells' => Cell[], 'isHeader' => bool] |
| 38 | * @var array |
| 39 | */ |
| 40 | protected array $rows = []; |
| 41 | |
| 42 | /** |
| 43 | * Total column count across the whole table |
| 44 | * @var int |
| 45 | */ |
| 46 | protected int $columnCount = 0; |
| 47 | |
| 48 | /** |
| 49 | * Total row count |
| 50 | * @var int |
| 51 | */ |
| 52 | protected int $rowCount = 0; |
| 53 | |
| 54 | /** |
| 55 | * Build a grid from a <table> DOM node |
| 56 | * |
| 57 | * @param Child $tableNode |
| 58 | * @return Grid |
| 59 | */ |
| 60 | public static function build(Child $tableNode): Grid |
| 61 | { |
| 62 | $grid = new self(); |
| 63 | $grid->parse($tableNode); |
| 64 | return $grid; |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * Get the rows |
| 69 | * |
| 70 | * @return array |
| 71 | */ |
| 72 | public function getRows(): array |
| 73 | { |
| 74 | return $this->rows; |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Get the total column count |
| 79 | * |
| 80 | * @return int |
| 81 | */ |
| 82 | public function getColumnCount(): int |
| 83 | { |
| 84 | return $this->columnCount; |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Get the total row count |
| 89 | * |
| 90 | * @return int |
| 91 | */ |
| 92 | public function getRowCount(): int |
| 93 | { |
| 94 | return $this->rowCount; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Parse the <table> DOM node into the grid |
| 99 | * |
| 100 | * @param Child $tableNode |
| 101 | * @return void |
| 102 | */ |
| 103 | protected function parse(Child $tableNode): void |
| 104 | { |
| 105 | $occupied = []; |
| 106 | $rowIndex = 0; |
| 107 | |
| 108 | foreach (self::collectRowNodes($tableNode) as $rowInfo) { |
| 109 | [$trNode, $isHeaderGroup] = $rowInfo; |
| 110 | |
| 111 | $colIndex = 0; |
| 112 | $rowCells = []; |
| 113 | $isAllTh = $trNode->hasChildNodes(); |
| 114 | |
| 115 | foreach ($trNode->getChildNodes() as $cellNode) { |
| 116 | $name = $cellNode->getNodeName(); |
| 117 | if (($name !== 'td') && ($name !== 'th')) { |
| 118 | continue; |
| 119 | } |
| 120 | if ($name !== 'th') { |
| 121 | $isAllTh = false; |
| 122 | } |
| 123 | |
| 124 | while (isset($occupied[$rowIndex . ':' . $colIndex])) { |
| 125 | $colIndex++; |
| 126 | } |
| 127 | |
| 128 | // Clamped to the HTML living standard's own caps (rowspan |
| 129 | // 65534, colspan 1000) here, at the point the raw attribute |
| 130 | // is read - Cell's constructor clamps too, but by then the |
| 131 | // slot-claiming loop below would already have iterated the |
| 132 | // unclamped value, which is unbounded author-provided input. |
| 133 | $colSpan = min(1000, max(1, (int) ($cellNode->getAttribute('colspan') ?? 1))); |
| 134 | $rowSpan = min(65534, max(1, (int) ($cellNode->getAttribute('rowspan') ?? 1))); |
| 135 | |
| 136 | // Each span is individually clamped above, but their PRODUCT |
| 137 | // still isn't bounded - rowspan=65534 * colspan=1000 alone |
| 138 | // claims 65.5 million occupied-slot entries. Cap the product |
| 139 | // a single cell can claim, scaling down whichever dimension |
| 140 | // is larger, so one cell can never allocate more than a few |
| 141 | // thousand slots regardless of how the two attributes combine. |
| 142 | if (($rowSpan * $colSpan) > 10000) { |
| 143 | if ($rowSpan > $colSpan) { |
| 144 | $rowSpan = (int) max(1, floor(10000 / $colSpan)); |
| 145 | } else { |
| 146 | $colSpan = (int) max(1, floor(10000 / $rowSpan)); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | $cell = new Cell($cellNode, $rowIndex, $colIndex, $rowSpan, $colSpan, ($name === 'th')); |
| 151 | $rowCells[] = $cell; |
| 152 | |
| 153 | for ($r = $rowIndex; $r < ($rowIndex + $rowSpan); $r++) { |
| 154 | for ($c = $colIndex; $c < ($colIndex + $colSpan); $c++) { |
| 155 | $occupied[$r . ':' . $c] = true; |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | $colIndex += $colSpan; |
| 160 | } |
| 161 | |
| 162 | if (!empty($rowCells)) { |
| 163 | $this->rows[$rowIndex] = [ |
| 164 | 'cells' => $rowCells, |
| 165 | 'isHeader' => ($isHeaderGroup || $isAllTh) |
| 166 | ]; |
| 167 | $this->columnCount = max($this->columnCount, $colIndex); |
| 168 | $rowIndex++; |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | $this->rowCount = $rowIndex; |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Collect every <tr> node in document order, alongside whether it's inside a <thead> |
| 177 | * |
| 178 | * @param Child $tableNode |
| 179 | * @return array |
| 180 | */ |
| 181 | protected static function collectRowNodes(Child $tableNode): array |
| 182 | { |
| 183 | $result = []; |
| 184 | |
| 185 | foreach ($tableNode->getChildNodes() as $child) { |
| 186 | $name = $child->getNodeName(); |
| 187 | if (($name === 'thead') || ($name === 'tbody') || ($name === 'tfoot')) { |
| 188 | foreach ($child->getChildNodes() as $tr) { |
| 189 | if ($tr->getNodeName() === 'tr') { |
| 190 | $result[] = [$tr, ($name === 'thead')]; |
| 191 | } |
| 192 | } |
| 193 | } else if ($name === 'tr') { |
| 194 | $result[] = [$child, false]; |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | return $result; |
| 199 | } |
| 200 | |
| 201 | } |