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<?php |
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|
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namespace Extendify\Agent; |
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|
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defined('ABSPATH') || die('No direct access.'); |
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|
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class TagBlocks |
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{ |
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// Blocks to ignore completely (block + its children) |
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private static $ignored = ['core/query', 'core/post-template', 'core/post-content']; |
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|
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public static function init() |
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{ |
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\add_filter('the_content', [self::class, 'enterScope'], 0); |
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\add_filter('the_content', [self::class, 'leaveScope'], PHP_INT_MAX); |
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|
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\add_filter('pre_render_block', [self::class, 'pre'], 10, 2); |
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\add_filter('render_block', [self::class, 'post'], 10, 2); |
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} |
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|
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public static function enterScope($content) |
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{ |
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if (is_admin()) { |
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return $content; |
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} |
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|
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if (empty($GLOBALS['extendify_agent_scope'])) { |
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$GLOBALS['extendify_agent_scope'] = [ |
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'depth' => 0, |
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'frames' => [], |
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]; |
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} |
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$GLOBALS['extendify_agent_scope']['depth']++; |
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// Each scope has: seq, id_stack, pushed_stack, skip_depth |
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$GLOBALS['extendify_agent_scope']['frames'][] = [ |
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'seq' => 0, |
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'id_stack' => [], |
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'pushed_stack' => [], |
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'skip_depth' => 0, // >0 while inside an ignored subtree |
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]; |
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return $content; |
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} |
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|
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public static function leaveScope($content) |
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{ |
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if (is_admin()) { |
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return $content; |
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} |
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$S =& $GLOBALS['extendify_agent_scope']; |
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if (!empty($S['depth'])) { |
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$S['depth']--; |
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array_pop($S['frames']); |
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} |
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return $content; |
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} |
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|
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public static function pre($pre, $parsed_block) |
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{ |
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if (is_admin() || !is_array($parsed_block) || empty($parsed_block['blockName'])) { |
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return $pre; |
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} |
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|
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$S = $GLOBALS['extendify_agent_scope'] ?? null; |
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if (!$S || ($S['depth'] ?? 0) !== 1 || empty($S['frames'])) { |
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return $pre; |
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} // only outer the_content |
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|
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$i = count($S['frames']) - 1; |
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$frame = $S['frames'][$i]; |
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|
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$name = $parsed_block['blockName']; |
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|
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// If this block starts an ignored subtree, enter skip mode |
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if (in_array($name, self::$ignored, true)) { |
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$frame['skip_depth']++; |
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$frame['pushed_stack'][] = false; // we didn't assign an id to this block |
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} elseif ($frame['skip_depth'] > 0) { |
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// Already skipping? (we're inside an ignored subtree) |
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$frame['pushed_stack'][] = false; // no id for anything under ignored |
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} else { |
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// Normal counting |
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$frame['seq']++; |
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$id = $frame['seq']; |
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$frame['id_stack'][] = $id; |
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$frame['pushed_stack'][] = true; |
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} |
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|
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$GLOBALS['extendify_agent_scope']['frames'][$i] = $frame; |
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return $pre; |
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} |
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|
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public static function post($content, $parsed_block) |
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{ |
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$S = $GLOBALS['extendify_agent_scope'] ?? null; |
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if (!$S || empty($S['frames'])) { |
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return $content; |
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} |
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|
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$i = count($S['frames']) - 1; |
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$frame = $S['frames'][$i]; |
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|
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$name = is_array($parsed_block) ? ($parsed_block['blockName'] ?? null) : null; |
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|
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// Pop pushed flag & optional id (ALWAYS pop to stay balanced) |
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$pushed = !empty($frame['pushed_stack']) ? array_pop($frame['pushed_stack']) : false; |
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$id = ($pushed && !empty($frame['id_stack'])) ? array_pop($frame['id_stack']) : null; |
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|
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// Inject only when: outer scope, we counted this block, html present, not admin |
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if (!is_admin() && ($S['depth'] ?? 0) === 1 && $pushed && $id && $content && $name) { |
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$tp = new \WP_HTML_Tag_Processor($content); |
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$value = (string) (int) $id; |
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|
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// Move cursor to the first start tag in the fragment |
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if ($tp->next_tag()) { |
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$tp->set_attribute('data-extendify-agent-block-id', $value); |
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$content = $tp->get_updated_html(); |
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} |
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} |
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|
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// If this block ends an ignored subtree, exit skip mode |
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if ($name && in_array($name, self::$ignored, true) && $frame['skip_depth'] > 0) { |
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$frame['skip_depth']--; |
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} |
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|
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$GLOBALS['extendify_agent_scope']['frames'][$i] = $frame; |
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return $content; |
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} |
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} |
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|
