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<?php |
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|
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|
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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/* Functions in this class should only be for plugging into WordPress listeners (filters, actions, etc). */ |
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|
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class ABJ_404_Solution_ShortCode { |
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|
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/** @var self|null */ |
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private static $instance = null; |
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/** |
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* Test seam: install or clear the cached singleton instance without |
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* private-field reflection. Pass null to reset between tests; pass a |
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* configured instance (or double) to install it. Mirrors the setInstance() |
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* contract on DataAccess / PluginLogic (M105 singleton-reset seam). |
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* |
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* @param self|null $instance |
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* @return void |
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*/ |
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public static function setInstance($instance) { |
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self::$instance = $instance; |
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} |
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|
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|
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/** @return self */ |
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public static function getInstance(): self { |
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if (self::$instance == null) { |
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self::$instance = new ABJ_404_Solution_ShortCode(); |
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} |
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|
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return self::$instance; |
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} |
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|
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/** @return ABJ_404_Solution_FrontendSuggestionLocaleScope */ |
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private static function localeScope(): ABJ_404_Solution_FrontendSuggestionLocaleScope { |
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return new ABJ_404_Solution_FrontendSuggestionLocaleScope(); |
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} |
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|
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/** @return ABJ_404_Solution_ShortcodeRequestedUrlResolver */ |
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private static function requestedUrlResolver(): ABJ_404_Solution_ShortcodeRequestedUrlResolver { |
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return new ABJ_404_Solution_ShortcodeRequestedUrlResolver(); |
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} |
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|
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/** @return ABJ_404_Solution_ShortcodeUrlBarUpdater */ |
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private static function urlBarUpdater(): ABJ_404_Solution_ShortcodeUrlBarUpdater { |
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return new ABJ_404_Solution_ShortcodeUrlBarUpdater(); |
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} |
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|
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/** @return ABJ_404_Solution_ShortcodeSuggestionsPresenter */ |
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private static function suggestionsPresenter(): ABJ_404_Solution_ShortcodeSuggestionsPresenter { |
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return new ABJ_404_Solution_ShortcodeSuggestionsPresenter(); |
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} |
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|
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/** If we're currently redirecting to a custom 404 page and we are about to show page |
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* suggestions then update the URL displayed to the user. |
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* @return void |
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*/ |
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static function updateURLbarIfNecessary(): void { |
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self::urlBarUpdater()->updateIfNecessary(); |
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} |
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|
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/** |
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* @param array<string, mixed> $atts |
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* @return string |
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*/ |
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static function shortcodePageSuggestions( array $atts ): string { |
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$localeScope = self::localeScope(); |
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$didSwitchLocale = $localeScope->switchToFrontendLocale(); |
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try { |
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$abj404logic = abj_service('plugin_logic'); |
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$abj404spellChecker = abj_service('spell_checker'); |
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$f = abj_service('functions'); |
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|
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// Attributes |
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$atts = shortcode_atts( |
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array( |
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), |
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$atts |
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); |
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|
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$options = abj_service('options_repository')->getOptions(); |
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|
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$content = "\n<!-- " . ABJ404_PP . " - Begin 404 suggestions. -->\n"; |
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|
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$urlResult = self::requestedUrlResolver()->resolve($f); |
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$content .= $urlResult['cookieScripts']; |
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$urlRequest = $urlResult['url']; |
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|
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if ($urlRequest == '') { |
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// if no 404 was detected then we don't offer any suggestions |
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return "<!-- " . ABJ404_PP . " - No 404 was detected. No suggestions to offer. -->\n"; |
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} |
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|
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// Check for cached suggestion computation (transient-based). |
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// Normalize at the boundary: see ABJ_404_Solution_SuggestionTransient. |
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$urlForCacheKey = abj_service('url_encoder')->normalizeURLForCacheKey($urlRequest); |
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$urlKey = md5($urlForCacheKey); |
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$transientKey = 'abj404_suggest_' . $urlKey; |
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$cached = ABJ_404_Solution_SuggestionTransient::fromRaw(get_transient($transientKey)); |
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|
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if ($cached !== null) { |
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if ($cached->isComplete()) { |
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// Suggestions ready, use cached data |
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$content .= self::suggestionsPresenter()->renderSuggestionsHTML( |
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$cached->getSuggestionsPacket(), |
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$urlRequest, |
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$options, |
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true |
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); |
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$content .= "\n<!-- " . ABJ404_PP . " - End 404 suggestions (cached) -->\n"; |
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return $content; |
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|
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} elseif ($cached->isPending()) { |
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// Still computing, show loading placeholder |
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self::enqueueAsyncPollingScript($urlRequest); |
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$content .= self::renderAsyncPlaceholder($urlRequest, $options); |
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$content .= "\n<!-- " . ABJ404_PP . " - Suggestions loading -->\n"; |
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return $content; |
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} |
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} |
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|
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// No async data - fall back to synchronous computation |
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$urlSlugOnly = $abj404logic->urlNormalization()->removeHomeDirectory($urlRequest); |
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|
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// Try cache first (populated by processRedirect() for existing redirects) |
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$permalinkSuggestionsPacket = $abj404spellChecker->getFromPermalinkCache($urlSlugOnly); |
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|
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// If cache miss, compute suggestions |
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if (empty($permalinkSuggestionsPacket) || empty($permalinkSuggestionsPacket[0])) { |
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$suggestCatsOpt = isset($options['suggest_cats']) && is_string($options['suggest_cats']) ? $options['suggest_cats'] : '1'; |
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$suggestTagsOpt = isset($options['suggest_tags']) && is_string($options['suggest_tags']) ? $options['suggest_tags'] : '1'; |
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$permalinkSuggestionsPacket = $abj404spellChecker->findMatchingPosts($urlSlugOnly, |
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$suggestCatsOpt, $suggestTagsOpt); |
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} |
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|
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$content .= self::suggestionsPresenter()->renderSuggestionsHTML( |
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array_values($permalinkSuggestionsPacket), |
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$urlRequest, |
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$options, |
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true |
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); |
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|
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$content .= "\n<!-- " . ABJ404_PP . " - End 404 suggestions for slug " . esc_html($urlSlugOnly) . " -->\n"; |
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|
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return $content; |
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} finally { |
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$localeScope->restore($didSwitchLocale); |
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} |
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} |
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|
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/** |
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* Render suggestions HTML from pre-computed data (for AJAX polling response). |
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* This method is called by Ajax_SuggestionPolling when suggestions are ready. |
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* |
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* @param array<int, mixed> $suggestionsPacket The suggestions data from findMatchingPosts() |
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* @param string $requestedURL The original 404 URL (for debugging) |
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* @return string HTML content for suggestions |
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*/ |
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public static function renderSuggestionsHTML(array $suggestionsPacket, string $requestedURL = ''): string { |
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$localeScope = self::localeScope(); |
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$didSwitchLocale = $localeScope->switchToFrontendLocale(); |
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try { |
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return self::suggestionsPresenter()->renderSuggestionsHTML($suggestionsPacket, $requestedURL, null, false); |
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} finally { |
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$localeScope->restore($didSwitchLocale); |
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} |
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} |
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|
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/** |
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* Render a loading placeholder for async suggestions. |
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* Shows skeleton loading animation while suggestions are being computed. |
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* |
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* @param string $requestedURL The 404 URL being looked up |
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* @param array<string, mixed> $options Plugin options |
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* @return string HTML placeholder with loading state |
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*/ |
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public static function renderAsyncPlaceholder(string $requestedURL, array $options): string { |
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$localeScope = self::localeScope(); |
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$didSwitchLocale = $localeScope->switchToFrontendLocale(); |
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try { |
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return self::suggestionsPresenter()->renderAsyncPlaceholder($requestedURL, $options); |
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} finally { |
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$localeScope->restore($didSwitchLocale); |
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} |
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} |
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|
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/** |
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* Enqueue the async suggestion polling JavaScript. |
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* |
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* @param string $requestedURL The 404 URL for polling |
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* @return void |
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*/ |
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public static function enqueueAsyncPollingScript(string $requestedURL): void { |
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// Enqueue jQuery dependency |
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wp_enqueue_script('jquery'); |
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|
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// Enqueue polling script. Use ABJ404_URL (plugin root) rather than |
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// plugin_dir_url(__FILE__): this file lives in includes/frontend/ but |
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// the JS lives in includes/ajax/, so a relative-to-__FILE__ URL points |
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// at a non-existent path (i961). |
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wp_enqueue_script( |
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'abj404-suggestion-polling', |
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ABJ404_URL . 'includes/ajax/SuggestionPolling.js', |
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array('jquery'), |
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ABJ404_VERSION, |
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true // Load in footer |
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); |
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|
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// Pass AJAX URL, nonce, and localized strings to JavaScript |
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wp_localize_script('abj404-suggestion-polling', 'abj404_suggestions', array( |
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'ajax_url' => admin_url('admin-ajax.php'), |
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'nonce' => wp_create_nonce('abj404_poll_suggestions'), |
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'no_suggestions_text' => __('No suggestions. :/ ', '404-solution') |
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)); |
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|
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// Enqueue loading CSS. See note above on ABJ404_URL vs. plugin_dir_url. |
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wp_enqueue_style( |
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'abj404-suggestions-loading', |
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ABJ404_URL . 'includes/css/suggestions-loading.css', |
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array(), |
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ABJ404_VERSION |
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); |
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} |
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|
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} |
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|
