<?php

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// Exit if accessed directly

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if ( ! defined( 'ABSPATH' ) ) {

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exit;

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}

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class AMPFORWP_AMP_Code_Widget extends WP_Widget {

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protected $registered = false;

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protected $default_instance = array(

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'title' => '',

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'content' => '',

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);

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// Set up the widget name and description.

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public function __construct() {

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$widget_options = array(

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'classname' => 'AMPFORWP_AMP_Code_Widget',

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'description' => esc_html__('You can add the AMP code in this widget which will appear in AMP Pages','accelerated-mobile-pages')

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);

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parent::__construct( 'AMPFORWP_AMP_Code_Widget', esc_html__('Custom AMP Code','accelerated-mobile-pages'), $widget_options );

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}

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public function _register_one( $number = -1 ) {

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parent::_register_one( $number );

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if ( $this->registered ) {

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return;

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}

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$this->registered = true;

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wp_add_inline_script( 'custom-html-widgets', sprintf( 'wp.customHtmlWidgets.idBases.push( %s );', wp_json_encode( $this->id_base ) ) );

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add_action( 'admin_footer-widgets.php', array( 'AMPFORWP_AMP_Code_Widget', 'render_control_template_scripts' ) );

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}

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public function widget( $args, $instance ) {

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$simulated_text_widget_instance = array_merge(

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$instance,

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array(

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'text' => isset( $instance['content'] ) ? $instance['content'] : '',

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'filter' => false, // Because wpautop is not applied.

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'visual' => false, // Because it wasn't created in TinyMCE.

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)

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);

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unset( $simulated_text_widget_instance['content'] ); // Was moved to 'text' prop.

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/** This filter is documented in wp-includes/widgets/class-wp-widget-text.php */

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$content = apply_filters( 'widget_text', $instance['content'], $simulated_text_widget_instance, $this );

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// Adds 'noopener' relationship, without duplicating values, to all HTML A elements that have a target.

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$content = wp_targeted_link_rel( $content );

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$args['before_widget'] = preg_replace( '/(?<=\sclass=["\'])/', 'widget_text ', $args['before_widget'] );

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echo $args['before_widget'];

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echo '<div class="textwidget custom-html-widget">'; // The textwidget class is for theme styling compatibility.

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echo $content;

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echo '</div>';

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echo $args['after_widget'];

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}

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public function form( $instance ) {

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$instance = wp_parse_args( (array) $instance, $this->default_instance );

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?>

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<input id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" class="title sync-input" type="hidden" value="<?php echo esc_attr( $instance['title'] ); ?>"/>

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<textarea id="<?php echo $this->get_field_id( 'content' ); ?>" name="<?php echo $this->get_field_name( 'content' ); ?>" class="content sync-input" hidden><?php echo esc_textarea( $instance['content'] ); ?></textarea>

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<?php

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}

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public static function render_control_template_scripts() { ?>

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<script type="text/html" id="tmpl-widget-custom-html-control-fields">

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<# var elementIdPrefix = 'el' + String( Math.random() ).replace( /\D/g, '' ) + '_' #>

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<p>

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<label for="{{ elementIdPrefix }}title"><?php esc_html_e( 'Title:' ); ?></label>

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<input id="{{ elementIdPrefix }}title" type="text" class="widefat title">

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</p>

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<p>

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<label for="{{ elementIdPrefix }}content" id="{{ elementIdPrefix }}content-label"><?php esc_html_e( 'Content:' ); ?></label>

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<textarea id="{{ elementIdPrefix }}content" class="widefat code content" rows="16" cols="20"></textarea>

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</p>

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<?php if ( ! current_user_can( 'unfiltered_html' ) ) : ?>

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<?php

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$probably_unsafe_html = array( 'script', 'iframe', 'form', 'input', 'style' );

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$allowed_html = wp_kses_allowed_html( 'post' );

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$disallowed_html = array_diff( $probably_unsafe_html, array_keys( $allowed_html ) );

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?>

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<?php if ( ! empty( $disallowed_html ) ) : ?>

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<# if ( data.codeEditorDisabled ) { #>

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<p>

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<?php _e( 'Some HTML tags are not permitted, including:' ); ?>

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<code><?php echo implode( '</code>, <code>', $disallowed_html ); ?></code>

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</p>

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<# } #>

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<?php endif; ?>

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<?php endif; ?>

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<div class="code-editor-error-container"></div>

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</script>

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<?php

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}

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public function update( $new_instance, $old_instance ) {

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$instance = array_merge( $this->default_instance, $old_instance );

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$instance['title'] = sanitize_text_field( $new_instance['title'] );

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if ( current_user_can( 'unfiltered_html' ) ) {

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$instance['content'] = $new_instance['content'];

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} else {

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$instance['content'] = wp_kses_post( $new_instance['content'] );

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}

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return $instance;

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}

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}

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// Register the widget.

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function ampforwp_register_amp_code_widget() {

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register_widget( 'AMPFORWP_AMP_Code_Widget' );

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}

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add_action( 'widgets_init', 'ampforwp_register_amp_code_widget' );

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?>

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