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<?php |
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|
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// If this file is called directly, abort. |
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if ( ! defined( 'WPINC' ) ) { |
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die; |
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} |
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|
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|
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/** |
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* Print HTML of alternate link with hreflang for each available languages |
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* |
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* @return void |
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*/ |
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function wplng_link_alternate_hreflang() { |
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|
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if ( ! wplng_url_is_translatable() ) { |
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return; |
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} |
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|
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$html = PHP_EOL . PHP_EOL; |
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$language_website = wplng_get_language_website(); |
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$languages_target = wplng_get_languages_target(); |
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|
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if ( empty( $language_website ) || empty( $languages_target ) ) { |
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return; |
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} |
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|
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// Create the starting comment |
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$html .= '<!-- This site is made multilingual with the wpLingua plugin -->'; |
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$html .= PHP_EOL; |
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|
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// Create meta generator |
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$html .= '<meta '; |
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$html .= 'name="generator" '; |
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$html .= 'content="wpLingua ' . esc_attr( WPLNG_PLUGIN_VERSION ) . '" />'; |
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$html .= PHP_EOL; |
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|
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// Create alternate link for website language |
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$html .= '<link '; |
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$html .= 'rel="alternate" '; |
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$html .= 'hreflang="' . esc_attr( $language_website['id'] ) . '" '; |
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$html .= 'href="' . esc_url( wplng_get_url_original() ) . '" />'; |
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$html .= PHP_EOL; |
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|
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// Create alternate link for each target languages |
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foreach ( $languages_target as $language_target ) { |
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|
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$url = wplng_get_url_current_for_language( $language_target['id'] ); |
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|
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$html .= '<link '; |
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$html .= 'rel="alternate" '; |
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$html .= 'hreflang="' . esc_attr( $language_target['id'] ) . '" '; |
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$html .= 'href="' . esc_url( $url ) . '" />'; |
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$html .= PHP_EOL; |
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} |
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|
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// Create the ending comment |
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$html .= '<!-- / wpLingua plugin. -->' . PHP_EOL . PHP_EOL; |
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|
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echo $html; |
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} |
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|
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|
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/** |
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* Get wpLingua excluded selectors |
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* |
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* @return array |
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*/ |
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function wplng_get_selector_exclude() { |
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|
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$selector_exclude = array(); |
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|
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// Get, check and sanitize excluded selector as string |
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$option = get_option( 'wplng_excluded_selectors' ); |
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if ( empty( $option ) || ! is_string( $option ) ) { |
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wplng_data_excluded_selector_default(); |
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} |
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$option = sanitize_textarea_field( $option ); |
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|
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// Get exclude selector as array |
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$option = explode( PHP_EOL, $option ); |
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|
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// Sanitize each selectors |
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foreach ( $option as $selector ) { |
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$selector = esc_attr( trim( $selector ) ); |
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if ( ! empty( $selector ) ) { |
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$selector_exclude[] = $selector; |
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} |
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} |
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|
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// Add default selectors |
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$selector_exclude = array_merge( |
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wplng_data_excluded_selector_default(), // Make HTML parsed smaller |
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$selector_exclude |
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); |
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|
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// Remove duplicate |
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$selector_exclude = array_unique( $selector_exclude ); |
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|
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// Apply wplng_selector_exclude filters |
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$selector_exclude = apply_filters( |
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'wplng_selector_exclude', |
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$selector_exclude |
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); |
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|
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return $selector_exclude; |
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} |
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|
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|
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/** |
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* Replace all excluded elements by empty tags with wplng-tag-exclude attribute |
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* |
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* @param string $html |
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* @param array $excluded_elements |
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* @return string HTML |
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*/ |
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function wplng_html_set_exclude_tag( $html, &$excluded_elements ) { |
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|
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$selector_exclude = wplng_get_selector_exclude(); |
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|
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if ( empty( $selector_exclude ) ) { |
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return $html; |
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} |
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|
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$dom = wplng_sdh_str_get_html( $html ); |
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|
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if ( false === $dom ) { |
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return $html; |
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} |
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|
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foreach ( $selector_exclude as $selector ) { |
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foreach ( $dom->find( $selector ) as $element ) { |
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$excluded_elements[] = $element->outertext; |
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$attr = count( $excluded_elements ) - 1; |
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$element->outertext = '<div wplng-tag-exclude="' . esc_attr( $attr ) . '"></div>'; |
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} |
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} |
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|
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$dom->save(); |
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|
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return (string) wplng_sdh_str_get_html( $dom ); |
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} |
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|
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|
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/** |
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* Replace all tags with wplng-tag-exclude attribute by value in $excluded_elements |
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* |
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* @param string $html |
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* @param array $excluded_elements |
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* @return string |
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*/ |
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function wplng_html_replace_exclude_tag( $html, $excluded_elements ) { |
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|
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if ( empty( $excluded_elements ) ) { |
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return $html; |
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} |
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|
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$dom = wplng_sdh_str_get_html( $html ); |
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|
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if ( false === $dom ) { |
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return $html; |
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} |
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|
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foreach ( $dom->find( '[wplng-tag-exclude]' ) as $element ) { |
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|
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if ( isset( $element->attr['wplng-tag-exclude'] ) ) { |
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|
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$exclude_index = (int) $element->attr['wplng-tag-exclude']; |
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|
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if ( isset( $excluded_elements[ $exclude_index ] ) ) { |
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$element->outertext = $excluded_elements[ $exclude_index ]; |
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} |
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} |
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} |
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|
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$dom->save(); |
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|
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return (string) wplng_sdh_str_get_html( $dom ); |
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} |
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|
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|
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/** |
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* wpLingua init function |
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* |
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* @return void |
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*/ |
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function wplng_ob_start() { |
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|
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if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) { |
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ob_start( 'wplng_ob_callback_ajax' ); |
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return; |
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} |
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|
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if ( wplng_get_language_website_id() === wplng_get_language_current_id() ) { |
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return; |
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} |
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|
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global $wplng_request_uri; |
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$current_path = $wplng_request_uri; |
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|
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if ( ! is_string( $current_path ) ) { |
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return; |
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} |
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|
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$origin_path = '/' . substr( $current_path, 4, strlen( $current_path ) - 1 ); |
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$origin_path = sanitize_url( $origin_path ); |
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|
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if ( ! wplng_url_is_translatable( $origin_path ) ) { |
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wp_redirect( $origin_path ); |
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exit; |
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} |
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|
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$_SERVER['REQUEST_URI'] = $origin_path; |
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|
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if ( current_user_can( 'edit_posts' ) ) { |
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if ( isset( $_GET['wplingua-editor'] ) ) { |
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|
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ob_start( 'wplng_ob_callback_editor' ); |
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|
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} elseif ( isset( $_GET['wplingua-list'] ) ) { |
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|
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add_filter( |
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'body_class', function( $classes ) { |
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return array_merge( $classes, array( 'wplingua-list' ) ); |
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} |
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); |
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|
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ob_start( 'wplng_ob_callback_list' ); |
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|
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} else { |
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|
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add_filter( |
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'body_class', function( $classes ) { |
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return array_merge( $classes, array( 'wplingua-editor' ) ); |
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} |
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); |
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|
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ob_start( 'wplng_ob_callback_translate' ); |
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|
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} |
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} else { |
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ob_start( 'wplng_ob_callback_translate' ); |
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} |
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|
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} |
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|