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TablePress – Tables in WordPress made easy / 1.12
TablePress – Tables in WordPress made easy v1.12
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tablepress / classes / class-render.php

class-render.php in TablePress – Tables in WordPress made easy 1.12, at classes/class-render.php

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1 <?php
2 /**
3 * TablePress Rendering Class
4 *
5 * @package TablePress
6 * @subpackage Rendering
7 * @author Tobias Bäthge
8 * @since 1.0.0
9 */
10
11 // Prohibit direct script loading.
12 defined( 'ABSPATH' ) || die( 'No direct script access allowed!' );
13
14 /**
15 * TablePress Rendering Class
16 * @package TablePress
17 * @subpackage Rendering
18 * @author Tobias Bäthge
19 * @since 1.0.0
20 */
21 class TablePress_Render {
22
23 /**
24 * Table data that is rendered.
25 *
26 * @since 1.0.0
27 * @var array
28 */
29 protected $table = array();
30
31 /**
32 * Table options that influence the output result.
33 *
34 * @since 1.0.0
35 * @var array
36 */
37 protected $render_options = array();
38
39 /**
40 * Rendered HTML of the table.
41 *
42 * @since 1.0.0
43 * @var string
44 */
45 protected $output;
46
47 /**
48 * Trigger words for colspan, rowspan, or the combination of both.
49 *
50 * @since 1.0.0
51 * @var array
52 */
53 protected $span_trigger = array(
54 'colspan' => '#colspan#',
55 'rowspan' => '#rowspan#',
56 'span' => '#span#',
57 );
58
59 /**
60 * Buffer to store the counts of rowspan per column, initialized in _render_table().
61 *
62 * @since 1.0.0
63 * @var array
64 */
65 protected $rowspan = array();
66
67 /**
68 * Buffer to store the counts of colspan per row, initialized in _render_table().
69 *
70 * @since 1.0.0
71 * @var array
72 */
73 protected $colspan = array();
74
75 /**
76 * Index of the last row of the visible data in the table, set in _render_table().
77 *
78 * @since 1.0.0
79 * @var int
80 */
81 protected $last_row_idx;
82
83 /**
84 * Index of the last column of the visible data in the table, set in _render_table().
85 *
86 * @since 1.0.0
87 * @var int
88 */
89 protected $last_column_idx;
90
91 /**
92 * Class constructor.
93 *
94 * @since 1.0.0
95 */
96 public function __construct() {
97 // Unused.
98 }
99
100 /**
101 * Set the table (data, options, visibility, ...) that is to be rendered.
102 *
103 * @since 1.0.0
104 *
105 * @param array $table Table to be rendered.
106 * @param array $render_options Options for rendering, from both "Edit" screen and Shortcode.
107 */
108 public function set_input( array $table, array $render_options ) {
109 $this->table = $table;
110 $this->render_options = $render_options;
111 /**
112 * Filter the table before the render process.
113 *
114 * @since 1.0.0
115 *
116 * @param array $table The table.
117 * @param array $render_options The render options for the table.
118 */
119 $this->table = apply_filters( 'tablepress_table_raw_render_data', $this->table, $this->render_options );
120 }
121
122 /**
123 * Process the table rendering and return the HTML output.
124 *
125 * @since 1.0.0
126 *
127 * @return string HTML of the rendered table (or an error message).
128 */
129 public function get_output() {
130 // Evaluate math expressions/formulas.
131 $this->_evaluate_table_data();
132 // Remove hidden rows and columns.
133 $this->_prepare_render_data();
134 // Generate HTML output.
135 $this->_render_table();
136 return $this->output;
137 }
138
139 /**
140 * Loop through the table to evaluate math expressions/formulas.
141 *
142 * @since 1.0.0
143 */
144 protected function _evaluate_table_data() {
145 $orig_table = $this->table;
146
147 $formula_evaluator = TablePress::load_class( 'TablePress_Evaluate', 'class-evaluate.php', 'classes' );
148 $this->table['data'] = $formula_evaluator->evaluate_table_data( $this->table['data'], $this->table['id'] );
149 /**
150 * Filter the table after evaluating formulas in the table.
151 *
152 * @since 1.0.0
153 *
154 * @param array $table The table with evaluated formulas.
155 * @param array $orig_table The table with unevaluated formulas.
156 * @param array $render_options The render options for the table.
157 */
158 $this->table = apply_filters( 'tablepress_table_evaluate_data', $this->table, $orig_table, $this->render_options );
159 }
160
161 /**
162 * Remove all cells from the data set that shall not be rendered, because they are hidden.
163 *
164 * @since 1.0.0
165 */
166 protected function _prepare_render_data() {
167 $orig_table = $this->table;
168
169 $num_rows = count( $this->table['data'] );
170 $num_columns = ( $num_rows > 0 ) ? count( $this->table['data'][0] ) : 0;
171
172 // Evaluate show/hide_rows/columns parameters.
173 $actions = array( 'show', 'hide' );
174 $elements = array( 'rows', 'columns' );
175 foreach ( $actions as $action ) {
176 foreach ( $elements as $element ) {
177 if ( empty( $this->render_options[ "{$action}_{$element}" ] ) ) {
178 $this->render_options[ "{$action}_{$element}" ] = array();
179 continue;
180 }
181
182 // Add all rows/columns to array if "all" value set for one of the four parameters.
183 if ( 'all' === $this->render_options[ "{$action}_{$element}" ] ) {
184 $this->render_options[ "{$action}_{$element}" ] = range( 0, ${'num_' . $element} - 1 );
185 continue;
186 }
187
188 // We have a list of rows/columns (possibly with ranges in it).
189 $this->render_options[ "{$action}_{$element}" ] = explode( ',', $this->render_options[ "{$action}_{$element}" ] );
190 // Support for ranges like 3-6 or A-BA.
191 $range_cells = array();
192 foreach ( $this->render_options[ "{$action}_{$element}" ] as $key => $value ) {
193 $range_dash = strpos( $value, '-' );
194 if ( false !== $range_dash ) {
195 unset( $this->render_options[ "{$action}_{$element}" ][ $key ] );
196 $start = substr( $value, 0, $range_dash );
197 if ( ! is_numeric( $start ) ) {
198 $start = TablePress::letter_to_number( $start );
199 }
200 $end = substr( $value, $range_dash + 1 );
201 if ( ! is_numeric( $end ) ) {
202 $end = TablePress::letter_to_number( $end );
203 }
204 $current_range = range( $start, $end );
205 $range_cells = array_merge( $range_cells, $current_range );
206 }
207 }
208 $this->render_options[ "{$action}_{$element}" ] = array_merge( $this->render_options[ "{$action}_{$element}" ], $range_cells );
209 /*
210 * Parse single letters and change from regular numbering to zero-based numbering,
211 * as rows/columns are indexed from 0 internally, but from 1 externally
212 */
213 foreach ( $this->render_options[ "{$action}_{$element}" ] as $key => $value ) {
214 if ( ! is_numeric( $value ) ) {
215 $value = TablePress::letter_to_number( $value );
216 }
217 $this->render_options[ "{$action}_{$element}" ][ $key ] = (int) $value - 1;
218 }
219
220 // Remove duplicate entries and sort the array.
221 $this->render_options[ "{$action}_{$element}" ] = array_unique( $this->render_options[ "{$action}_{$element}" ] );
222 sort( $this->render_options[ "{$action}_{$element}" ], SORT_NUMERIC );
223 }
224 }
225
226 // Load information about hidden rows and columns.
227 // Get indexes of hidden rows (array value of 0).
228 $hidden_rows = array_keys( $this->table['visibility']['rows'], 0 );
229 $hidden_rows = array_merge( $hidden_rows, $this->render_options['hide_rows'] );
230 $hidden_rows = array_diff( $hidden_rows, $this->render_options['show_rows'] );
231 // Get indexes of hidden columns (array value of 0).
232 $hidden_columns = array_keys( $this->table['visibility']['columns'], 0 );
233 $hidden_columns = array_merge( $hidden_columns, $this->render_options['hide_columns'] );
234 $hidden_columns = array_merge( array_diff( $hidden_columns, $this->render_options['show_columns'] ) );
235
236 // Remove hidden rows and re-index.
237 foreach ( $hidden_rows as $row_idx ) {
238 unset( $this->table['data'][ $row_idx ] );
239 }
240 $this->table['data'] = array_merge( $this->table['data'] );
241 // Remove hidden columns and re-index.
242 foreach ( $this->table['data'] as $row_idx => $row ) {
243 foreach ( $hidden_columns as $col_idx ) {
244 unset( $row[ $col_idx ] );
245 }
246 $this->table['data'][ $row_idx ] = array_merge( $row );
247 }
248
249 /**
250 * Filter the table after processing the table visibility information.
251 *
252 * @since 1.0.0
253 *
254 * @param array $table The processed table.
255 * @param array $orig_table The unprocessed table.
256 * @param array $render_options The render options for the table.
257 */
258 $this->table = apply_filters( 'tablepress_table_render_data', $this->table, $orig_table, $this->render_options );
259 }
260
261 /**
262 * Generate the HTML output of the table.
263 *
264 * @since 1.0.0
265 */
266 protected function _render_table() {
267 $num_rows = count( $this->table['data'] );
268 $num_columns = ( $num_rows > 0 ) ? count( $this->table['data'][0] ) : 0;
269
270 // Check if there are rows and columns in the table (might not be the case after removing hidden rows/columns!).
271 if ( 0 === $num_rows || 0 === $num_columns ) {
272 $this->output = sprintf( __( '<!-- The table with the ID %s is empty! -->', 'tablepress' ), $this->table['id'] );
273 return;
274 }
275
276 // Counters for spans of rows and columns, init to 1 for each row and column (as that means no span).
277 $this->rowspan = array_fill( 0, $num_columns, 1 );
278 $this->colspan = array_fill( 0, $num_rows, 1 );
279
280 /**
281 * Filter the trigger keywords for "colspan" and "rowspan"
282 *
283 * @since 1.0.0
284 *
285 * @param array $span_trigger The trigger keywords for combining table cells.
286 * @param string $table_id The current table ID.
287 */
288 $this->span_trigger = apply_filters( 'tablepress_span_trigger_keywords', $this->span_trigger, $this->table['id'] );
289
290 // Explode from string to array.
291 $this->render_options['column_widths'] = ( ! empty( $this->render_options['column_widths'] ) ) ? explode( '|', $this->render_options['column_widths'] ) : array();
292 // Make array $this->render_options['column_widths'] have $columns entries.
293 $this->render_options['column_widths'] = array_pad( $this->render_options['column_widths'], $num_columns, '' );
294
295 $output = '';
296
297 if ( $this->render_options['print_name'] ) {
298 /**
299 * Filter the HTML tag that wraps the printed table name.
300 *
301 * @since 1.0.0
302 *
303 * @param string $tag The HTML tag around the table name. Default h2.
304 * @param string $table_id The current table ID.
305 */
306 $print_name_html_tag = apply_filters( 'tablepress_print_name_html_tag', 'h2', $this->table['id'] );
307 /**
308 * Filter the class attribute for the printed table name.
309 *
310 * @since 1.0.0
311 *
312 * @param string $class The class attribute for the table name that can be used in CSS code.
313 * @param string $table_id The current table ID.
314 */
315 $print_name_css_class = apply_filters( 'tablepress_print_name_css_class', "tablepress-table-name tablepress-table-name-id-{$this->table['id']}", $this->table['id'] );
316 $print_name_html = "<{$print_name_html_tag} class=\"{$print_name_css_class}\">" . $this->safe_output( $this->table['name'] ) . "</{$print_name_html_tag}>\n";
317 }
318 if ( $this->render_options['print_description'] ) {
319 /**
320 * Filter the HTML tag that wraps the printed table description.
321 *
322 * @since 1.0.0
323 *
324 * @param string $tag The HTML tag around the table description. Default span.
325 * @param string $table_id The current table ID.
326 */
327 $print_description_html_tag = apply_filters( 'tablepress_print_description_html_tag', 'span', $this->table['id'] );
328 /**
329 * Filter the class attribute for the printed table description.
330 *
331 * @since 1.0.0
332 *
333 * @param string $class The class attribute for the table description that can be used in CSS code.
334 * @param string $table_id The current table ID.
335 */
336 $print_description_css_class = apply_filters( 'tablepress_print_description_css_class', "tablepress-table-description tablepress-table-description-id-{$this->table['id']}", $this->table['id'] );
337 $print_description_html = "<{$print_description_html_tag} class=\"{$print_description_css_class}\">" . $this->safe_output( $this->table['description'] ) . "</{$print_description_html_tag}>\n";
338 }
339
340 if ( $this->render_options['print_name'] && 'above' === $this->render_options['print_name_position'] ) {
341 $output .= $print_name_html;
342 }
343 if ( $this->render_options['print_description'] && 'above' === $this->render_options['print_description_position'] ) {
344 $output .= $print_description_html;
345 }
346
347 // Deactivate nl2br() for this render process, if "convert_line_breaks" Shortcode parameter is set to false.
348 if ( ! $this->render_options['convert_line_breaks'] ) {
349 add_filter( 'tablepress_apply_nl2br', '__return_false', 9 ); // Priority 9, so that this filter can easily be overwritten at the default priority.
350 }
351
352 $thead = '';
353 $tfoot = '';
354 $tbody = array();
355
356 $this->last_row_idx = $num_rows - 1;
357 $this->last_column_idx = $num_columns - 1;
358 // Loop through rows in reversed order, to search for rowspan trigger keyword.
359 for ( $row_idx = $this->last_row_idx; $row_idx >= 0; $row_idx-- ) {
360 // Last row, need to check for footer (but only if at least two rows).
361 if ( $this->last_row_idx === $row_idx && $this->render_options['table_foot'] && $num_rows > 1 ) {
362 $tfoot = $this->_render_row( $row_idx, 'th' );
363 continue;
364 }
365 // First row, need to check for head (but only if at least two rows).
366 if ( 0 === $row_idx && $this->render_options['table_head'] && $num_rows > 1 ) {
367 $thead = $this->_render_row( $row_idx, 'th' );
368 continue;
369 }
370 // Neither first nor last row (with respective head/foot enabled), so render as body row.
371 $tbody[] = $this->_render_row( $row_idx, 'td' );
372 }
373
374 // Re-instate nl2br() behavior after this render process, if "convert_line_breaks" Shortcode parameter is set to false.
375 if ( ! $this->render_options['convert_line_breaks'] ) {
376 remove_filter( 'tablepress_apply_nl2br', '__return_false', 9 ); // Priority 9, so that this filter can easily be overwritten at the default priority.
377 }
378
379 // <caption> tag.
380 /**
381 * Filter the content for the HTML caption element of the table.
382 *
383 * If the "Edit" link for a table is shown, it is also added to the caption element.
384 *
385 * @since 1.0.0
386 *
387 * @param string $caption The content for the HTML caption element of the table. Default empty.
388 * @param array $table The current table.
389 */
390 $caption = apply_filters( 'tablepress_print_caption_text', '', $this->table );
391 $caption_style = $caption_class = '';
392 if ( ! empty( $caption ) ) {
393 /**
394 * Filter the class attribute for the HTML caption element of the table.
395 *
396 * @since 1.0.0
397 *
398 * @param string $class The class attribute for the HTML caption element of the table.
399 * @param string $table_id The current table ID.
400 */
401 $caption_class = apply_filters( 'tablepress_print_caption_class', "tablepress-table-caption tablepress-table-caption-id-{$this->table['id']}", $this->table['id'] );
402 $caption_class = ' class="' . $caption_class . '"';
403 }
404 if ( ! empty( $this->render_options['edit_table_url'] ) ) {
405 if ( empty( $caption ) ) {
406 $caption_style = ' style="caption-side:bottom;text-align:left;border:none;background:none;margin:0;padding:0;"';
407 } else {
408 $caption .= '<br />';
409 }
410 $caption .= "<a href=\"{$this->render_options['edit_table_url']}\">" . __( 'Edit', 'default' ) . '</a>';
411 }
412 if ( ! empty( $caption ) ) {
413 $caption = "<caption{$caption_class}{$caption_style}>{$caption}</caption>\n";
414 }
415
416 // <colgroup> tag.
417 $colgroup = '';
418 /**
419 * Filter whether the HTML colgroup tag shall be added to the table output.
420 *
421 * @since 1.0.0
422 *
423 * @param bool $print Whether the colgroup element shall be printed.
424 * @param string $table_id The current table ID.
425 */
426 if ( apply_filters( 'tablepress_print_colgroup_tag', false, $this->table['id'] ) ) {
427 for ( $col_idx = 0; $col_idx < $num_columns; $col_idx++ ) {
428 $attributes = ' class="colgroup-column-' . ( $col_idx + 1 ) . ' "';
429 /**
430 * Filter the attributes of the HTML col tags in the HTML colgroup tag.
431 *
432 * @since 1.0.0
433 *
434 * @param string $attributes The attributes in the col element.
435 * @param string $table_id The current table ID.
436 * @param int $col_idx The number of the column.
437 */
438 $attributes = apply_filters( 'tablepress_colgroup_tag_attributes', $attributes, $this->table['id'], $col_idx + 1 );
439 $colgroup .= "\t<col{$attributes}/>\n";
440 }
441 }
442 if ( ! empty( $colgroup ) ) {
443 $colgroup = "<colgroup>\n{$colgroup}</colgroup>\n";
444 }
445
446 // <thead>, <tfoot>, and <tbody> tags.
447 if ( ! empty( $thead ) ) {
448 $thead = "<thead>\n{$thead}</thead>\n";
449 }
450 if ( ! empty( $tfoot ) ) {
451 $tfoot = "<tfoot>\n{$tfoot}</tfoot>\n";
452 }
453 $tbody_class = ( $this->render_options['row_hover'] ) ? ' class="row-hover"' : '';
454 // Reverse rows because we looped through the rows in reverse order.
455 $tbody = array_reverse( $tbody );
456 $tbody = "<tbody{$tbody_class}>\n" . implode( '', $tbody ) . "</tbody>\n";
457
458 // Attributes for the table (HTML table element).
459 $table_attributes = array();
460
461 // "id" attribute.
462 if ( ! empty( $this->render_options['html_id'] ) ) {
463 $table_attributes['id'] = $this->render_options['html_id'];
464 }
465
466 // "class" attribute.
467 $css_classes = array( 'tablepress', "tablepress-id-{$this->table['id']}", $this->render_options['extra_css_classes'] );
468 /**
469 * Filter the CSS classes that are given to the HTML table element.
470 *
471 * @since 1.0.0
472 *
473 * @param array $css_classes The CSS classes for the table element.
474 * @param string $table_id The current table ID.
475 */
476 $css_classes = apply_filters( 'tablepress_table_css_classes', $css_classes, $this->table['id'] );
477 // $css_classes might contain several classes in one array entry.
478 $css_classes = explode( ' ', implode( ' ', $css_classes ) );
479 $css_classes = array_map( array( 'TablePress', 'sanitize_css_class' ), $css_classes );
480 $css_classes = array_unique( $css_classes );
481 $css_classes = trim( implode( ' ', $css_classes ) );
482 if ( ! empty( $css_classes ) ) {
483 $table_attributes['class'] = $css_classes;
484 }
485
486 // "summary" attribute.
487 $summary = '';
488 /**
489 * Filter the content for the summary attribute of the HTML table element.
490 *
491 * The attribute is only added if it is not empty.
492 *
493 * @since 1.0.0
494 *
495 * @param string $summary The content for the summary attribute of the table. Default empty.
496 * @param array $table The current table.
497 */
498 $summary = apply_filters( 'tablepress_print_summary_attr', $summary, $this->table );
499 if ( ! empty( $summary ) ) {
500 $table_attributes['summary'] = esc_attr( $summary );
501 }
502
503 // Legacy support for attributes that are not encouraged in HTML5.
504 foreach ( array( 'cellspacing', 'cellpadding', 'border' ) as $attribute ) {
505 if ( false !== $this->render_options[ $attribute ] ) {
506 $table_attributes[ $attribute ] = intval( $this->render_options[ $attribute ] );
507 }
508 }
509
510 /**
511 * Filter the attributes for the table (HTML table element).
512 *
513 * @since 1.4.0
514 *
515 * @param array $table_attributes The attributes for the table element.
516 * @param array $table The current table.
517 * @param array $render_options The render options for the table.
518 */
519 $table_attributes = apply_filters( 'tablepress_table_tag_attributes', $table_attributes, $this->table, $this->render_options );
520 $table_attributes = $this->_attributes_array_to_string( $table_attributes );
521
522 $output .= "\n<table{$table_attributes}>\n";
523 $output .= $caption . $colgroup . $thead . $tbody . $tfoot;
524 $output .= "</table>\n";
525
526 // name/description below table (HTML already generated above).
527 if ( $this->render_options['print_name'] && 'below' === $this->render_options['print_name_position'] ) {
528 $output .= $print_name_html;
529 }
530 if ( $this->render_options['print_description'] && 'below' === $this->render_options['print_description_position'] ) {
531 $output .= $print_description_html;
532 }
533
534 /**
535 * Filter the generated HTML code for table.
536 *
537 * @since 1.0.0
538 *
539 * @param string $output The generated HTML for the table.
540 * @param array $table The current table.
541 * @param array $render_options The render options for the table.
542 */
543 $this->output = apply_filters( 'tablepress_table_output', $output, $this->table, $this->render_options );
544 }
545
546 /**
547 * Generate the HTML of a row.
548 *
549 * @since 1.0.0
550 *
551 * @param int $row_idx Index of the row to be rendered.
552 * @param string $tag HTML tag to use for the cells (td or th).
553 * @return string HTML for the row.
554 */
555 protected function _render_row( $row_idx, $tag ) {
556 $row_cells = array();
557 // Loop through cells in reversed order, to search for colspan or rowspan trigger words.
558 for ( $col_idx = $this->last_column_idx; $col_idx >= 0; $col_idx-- ) {
559 $cell_content = $this->table['data'][ $row_idx ][ $col_idx ];
560
561 // Print formulas that are escaped with '= (like in Excel) as text.
562 if ( "'=" === substr( $cell_content, 0, 2 ) ) {
563 $cell_content = substr( $cell_content, 1 );
564 }
565 $cell_content = do_shortcode( $this->safe_output( $cell_content ) );
566 /**
567 * Filter the content of a single cell.
568 *
569 * Filter the content of a single cell, after formulas have been evaluated, the output has been sanitized, and Shortcodes have been evaluated.
570 *
571 * @since 1.0.0
572 *
573 * @param string $cell_content The cell content.
574 * @param string $table_id The current table ID.
575 * @param int $row_idx The row number of the cell.
576 * @param int $col_idx The column number of the cell.
577 */
578 $cell_content = apply_filters( 'tablepress_cell_content', $cell_content, $this->table['id'], $row_idx + 1, $col_idx + 1 );
579
580 if ( $this->span_trigger['rowspan'] === $cell_content ) { // There will be a rowspan.
581 // Check for #rowspan# in first row, which doesn't make sense.
582 if ( ( $row_idx > 1 && $row_idx < $this->last_row_idx )
583 || ( 1 === $row_idx && ! $this->render_options['table_head'] ) // No rowspan into table head.
584 || ( $this->last_row_idx === $row_idx && ! $this->render_options['table_foot'] ) ) { // No rowspan out of table foot.
585 // Increase counter for rowspan in this column.
586 $this->rowspan[ $col_idx ]++;
587 // Reset counter for colspan in this row, combined col- and rowspan might be happening.
588 $this->colspan[ $row_idx ] = 1;
589 continue;
590 }
591 // Invalid rowspan, so we set cell content from #rowspan# to empty.
592 $cell_content = '';
593 } elseif ( $this->span_trigger['colspan'] === $cell_content ) { // There will be a colspan.
594 // Check for #colspan# in first column, which doesn't make sense.
595 if ( $col_idx > 1
596 || ( 1 === $col_idx && ! $this->render_options['first_column_th'] ) ) { // No colspan into first column head.
597 // Increase counter for colspan in this row.
598 $this->colspan[ $row_idx ]++;
599 // Reset counter for rowspan in this column, combined col- and rowspan might be happening.
600 $this->rowspan[ $col_idx ] = 1;
601 continue;
602 }
603 // Invalid colspan, so we set cell content from #colspan# to empty.
604 $cell_content = '';
605 } elseif ( $this->span_trigger['span'] === $cell_content ) { // There will be a combined col- and rowspan.
606 // Check for #span# in first column or first or last row, which is not always possible.
607 if ( ( $row_idx > 1 && $row_idx < $this->last_row_idx && $col_idx > 1 )
608 // We are in first, second, or last row or in the first or second column, so more checks are necessary.
609 || ( ( 1 === $row_idx && ! $this->render_options['table_head'] ) // No rowspan into table head.
610 && ( $col_idx > 1 || ( 1 === $col_idx && ! $this->render_options['first_column_th'] ) ) ) // And no colspan into first column head.
611 || ( ( $this->last_row_idx === $row_idx && ! $this->render_options['table_foot'] ) // No rowspan out of table foot.
612 && ( $col_idx > 1 || ( 1 === $col_idx && ! $this->render_options['first_column_th'] ) ) ) ) { // And no colspan into first column head.
613 continue;
614 }
615 // Invalid span, so we set cell content from #span# to empty.
616 $cell_content = '';
617 } elseif ( '' === $cell_content && 0 === $row_idx && $this->render_options['table_head'] ) {
618 // Make empty cells have a space in the table head, to give sorting arrows the correct position in IE9.
619 $cell_content = '&nbsp;';
620 }
621
622 // Attributes for the table cell (HTML td or th element).
623 $tag_attributes = array();
624
625 // "colspan" and "rowspan" attributes.
626 if ( $this->colspan[ $row_idx ] > 1 ) { // We have colspaned cells.
627 $tag_attributes['colspan'] = $this->colspan[ $row_idx ];
628 }
629 if ( $this->rowspan[ $col_idx ] > 1 ) { // We have rowspaned cells.
630 $tag_attributes['rowspan'] = $this->rowspan[ $col_idx ];
631 }
632
633 // "class" attribute.
634 $cell_class = 'column-' . ( $col_idx + 1 );
635 /**
636 * Filter the CSS classes that are given to a single cell (HTML td element) of a table.
637 *
638 * @since 1.0.0
639 *
640 * @param string $cell_class The CSS classes for the cell.
641 * @param string $table_id The current table ID.
642 * @param string $cell_content The cell content.
643 * @param int $row_idx The row number of the cell.
644 * @param int $col_idx The column number of the cell.
645 * @param int $colspan_row The number of combined columns for this cell.
646 * @param int $rowspan_col The number of combined rows for this cell.
647 */
648 $cell_class = apply_filters( 'tablepress_cell_css_class', $cell_class, $this->table['id'], $cell_content, $row_idx + 1, $col_idx + 1, $this->colspan[ $row_idx ], $this->rowspan[ $col_idx ] );
649 if ( ! empty( $cell_class ) ) {
650 $tag_attributes['class'] = $cell_class;
651 }
652
653 // "style" attribute.
654 if ( ( 0 === $row_idx ) && ! empty( $this->render_options['column_widths'][ $col_idx ] ) ) {
655 $tag_attributes['style'] = 'width:' . preg_replace( '#[^0-9a-z.%]#', '', $this->render_options['column_widths'][ $col_idx ] ) . ';';
656 }
657
658 /**
659 * Filter the attributes for the table cell (HTML td or th element).
660 *
661 * @since 1.4.0
662 *
663 * @param array $tag_attributes The attributes for the td or th element.
664 * @param string $table_id The current table ID.
665 * @param string $cell_content The cell content.
666 * @param int $row_idx The row number of the cell.
667 * @param int $col_idx The column number of the cell.
668 * @param int $colspan_row The number of combined columns for this cell.
669 * @param int $rowspan_col The number of combined rows for this cell.
670 */
671 $tag_attributes = apply_filters( 'tablepress_cell_tag_attributes', $tag_attributes, $this->table['id'], $cell_content, $row_idx + 1, $col_idx + 1, $this->colspan[ $row_idx ], $this->rowspan[ $col_idx ] );
672 $tag_attributes = $this->_attributes_array_to_string( $tag_attributes );
673
674 if ( $this->render_options['first_column_th'] && 0 === $col_idx ) {
675 $tag = 'th';
676 }
677
678 $row_cells[] = "<{$tag}{$tag_attributes}>{$cell_content}</{$tag}>";
679 $this->colspan[ $row_idx ] = 1; // Reset.
680 $this->rowspan[ $col_idx ] = 1; // Reset.
681 }
682
683 // Attributes for the table row (HTML tr element).
684 $tr_attributes = array();
685
686 // "class" attribute.
687 $row_classes = 'row-' . ( $row_idx + 1 );
688 if ( $this->render_options['alternating_row_colors'] ) {
689 $row_classes .= ( 1 === ( $row_idx % 2 ) ) ? ' even' : ' odd';
690 }
691 /**
692 * Filter the CSS classes that are given to a row (HTML tr element) of a table.
693 *
694 * @since 1.0.0
695 *
696 * @param string $row_classes The CSS classes for the row.
697 * @param string $table_id The current table ID.
698 * @param array $row_cells The HTML code for the cells of the row.
699 * @param int $row_idx The row number.
700 * @param array $row_data The content of the cells of the row.
701 */
702 $row_classes = apply_filters( 'tablepress_row_css_class', $row_classes, $this->table['id'], $row_cells, $row_idx + 1, $this->table['data'][ $row_idx ] );
703 if ( ! empty( $row_classes ) ) {
704 $tr_attributes['class'] = $row_classes;
705 }
706
707 /**
708 * Filter the attributes for the table row (HTML tr element).
709 *
710 * @since 1.4.0
711 *
712 * @param array $tr_attributes The attributes for the tr element.
713 * @param string $table_id The current table ID.
714 * @param int $row_idx The row number.
715 * @param array $row_data The content of the cells of the row.
716 */
717 $tr_attributes = apply_filters( 'tablepress_row_tag_attributes', $tr_attributes, $this->table['id'], $row_idx + 1, $this->table['data'][ $row_idx ] );
718 $tr_attributes = $this->_attributes_array_to_string( $tr_attributes );
719
720 // Reverse rows because we looped through the cells in reverse order.
721 $row_cells = array_reverse( $row_cells );
722 return "<tr{$tr_attributes}>\n\t" . implode( '', $row_cells ) . "\n</tr>\n";
723 }
724
725 /**
726 * Convert an array of HTML tag attributes to a string.
727 *
728 * @since 1.4.0
729 *
730 * @param array $attributes Attributes for the HTML tag in the array keys, and their values in the array values.
731 * @return string The attributes as a string for usage in a HTML element.
732 */
733 protected function _attributes_array_to_string( array $attributes ) {
734 $attributes_string = '';
735 foreach ( $attributes as $attribute => $value ) {
736 $attributes_string .= " {$attribute}=\"{$value}\"";
737 }
738 return $attributes_string;
739 }
740
741 /**
742 * Possibly replace certain HTML entities and replace line breaks with HTML.
743 *
744 * @TODO: Find a better solution than this function, e.g. something like wpautop().
745 *
746 * @since 1.0.0
747 *
748 * @param string $string The string to process.
749 * @return string Processed string for output.
750 */
751 protected function safe_output( $string ) {
752 /*
753 * Replace any & with &amp; that is not already an encoded entity (from function htmlentities2 in WP 2.8).
754 * A complete htmlentities2() or htmlspecialchars() would encode <HTML> tags, which we don't want.
755 */
756 $string = preg_replace( '/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,4};)/', '&amp;', $string );
757 /**
758 * Filter whether line breaks in the cell content shall be replaced with HTML br tags.
759 *
760 * @since 1.0.0
761 *
762 * @param bool $replace Whether to replace line breaks with HTML br tags. Default true.
763 * @param string $table_id The current table ID.
764 */
765 if ( apply_filters( 'tablepress_apply_nl2br', true, $this->table['id'] ) ) {
766 $string = nl2br( $string );
767 }
768 return $string;
769 }
770
771 /**
772 * Get the default render options, null means: Use option from "Edit" screen.
773 *
774 * @since 1.0.0
775 *
776 * @return array Default render options.
777 */
778 public function get_default_render_options() {
779 // Attention: Array keys have to be lowercase, otherwise they won't match the Shortcode attributes, which will be passed in lowercase by WP.
780 return array(
781 'id' => '',
782 'column_widths' => '',
783 'alternating_row_colors' => null,
784 'row_hover' => null,
785 'table_head' => null,
786 'table_foot' => null,
787 'first_column_th' => false,
788 'print_name' => null,
789 'print_name_position' => null,
790 'print_description' => null,
791 'print_description_position' => null,
792 'cache_table_output' => true,
793 'convert_line_breaks' => true,
794 'extra_css_classes' => null,
795 'use_datatables' => null,
796 'datatables_sort' => null,
797 'datatables_paginate' => null,
798 'datatables_paginate_entries' => null,
799 'datatables_lengthchange' => null,
800 'datatables_filter' => null,
801 'datatables_info' => null,
802 'datatables_scrollx' => null,
803 'datatables_scrolly' => false,
804 'datatables_custom_commands' => null,
805 'datatables_locale' => get_locale(),
806 'show_rows' => '',
807 'show_columns' => '',
808 'hide_rows' => '',
809 'hide_columns' => '',
810 'cellspacing' => false,
811 'cellpadding' => false,
812 'border' => false,
813 'shortcode_debug' => false,
814 );
815 }
816
817 /**
818 * Get the CSS code for the Preview iframe.
819 *
820 * @since 1.0.0
821 *
822 * @return string CSS for the Preview iframe.
823 */
824 public function get_preview_css() {
825 if ( is_rtl() ) {
826 $rtl = "\ndirection: rtl;";
827 $rtl_align = 'right';
828 } else {
829 $rtl = '';
830 $rtl_align = 'left';
831 }
832 return <<<CSS
833 <style type="text/css">
834 /* iframe */
835 body {
836 margin: 10px;
837 font-family: sans-serif;{$rtl}
838 }
839 /* Inline Shortcodes, in texts */
840 .table-shortcode-inline {
841 background: transparent;
842 border: none;
843 color: #333333;
844 width: 110px;
845 margin: 0;
846 padding: 0;
847 -webkit-box-shadow: none;
848 box-shadow: none;
849 text-align: center;
850 font-weight: bold;
851 font-size: 100%;
852 }
853 .table-shortcode {
854 cursor: text;
855 }
856 /* Default table styling */
857 .tablepress {
858 border-collapse: collapse;
859 border-spacing: 0;
860 width: 100%;
861 margin-bottom: 1em;
862 border: none;
863 }
864 .tablepress td,
865 .tablepress th {
866 padding: 8px;
867 border: none;
868 background: none;
869 text-align: {$rtl_align};
870 }
871 .tablepress tbody td {
872 vertical-align: top;
873 }
874 .tablepress tbody tr td,
875 .tablepress tfoot tr th {
876 border-top: 1px solid #dddddd;
877 }
878 .tablepress tbody tr:first-child td {
879 border-top: 0;
880 }
881 .tablepress thead tr th {
882 border-bottom: 1px solid #dddddd;
883 }
884 .tablepress thead th,
885 .tablepress tfoot th {
886 background-color: #d9edf7;
887 font-weight: bold;
888 vertical-align: middle;
889 }
890 .tablepress tbody tr.odd td {
891 background-color: #f9f9f9;
892 }
893 .tablepress tbody tr.even td {
894 background-color: #ffffff;
895 }
896 .tablepress .row-hover tr:hover td {
897 background-color: #f3f3f3;
898 }
899 .tablepress img {
900 margin: 0;
901 padding: 0;
902 border: none;
903 max-width: none;
904 }
905 </style>
906 CSS;
907 }
908
909 } // class TablePress_Render
910