<?php

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namespace WPForms\Forms\Fields\Traits;

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use WP_Post;

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/**

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* Trait ContentInput.

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*

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* @since 1.9.4

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*/

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trait ContentInput {

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/**

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* Translatable strings.

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*

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* @since 1.9.4

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*

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* @var null|array Translatable strings.

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*/

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private static $translatable_strings;

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/**

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* Constructor overloader to register trait-specific hooks.

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*

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* @since 1.9.4

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*

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* @param bool $init Pass false to allow shortcutting the whole initialization, if needed.

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*/

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public function __construct( $init = true ) {

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if ( ! $init ) {

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return;

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}

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$this->content_input_hooks();

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parent::__construct( $init );

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}

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/**

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* Register hooks.

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*

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* @since 1.9.4

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*/

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private function content_input_hooks(): void {

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add_action( 'wpforms_builder_enqueues', [ $this, 'builder_enqueues' ] );

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add_action( 'wpforms_builder_print_footer_scripts', [ $this, 'content_editor_tools_template' ] );

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add_filter( 'wpforms_builder_field_option_class', [ $this, 'builder_field_option_class' ], 10, 2 );

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add_filter( 'wpforms_builder_strings', [ $this, 'content_builder_strings' ], 10, 2 );

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add_filter( 'editor_stylesheets', [ $this, 'editor_stylesheets' ] );

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add_filter( 'media_view_strings', [ $this, 'edit_media_view_strings' ], 10, 2 );

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add_filter( 'teeny_mce_buttons', [ $this, 'teeny_mce_buttons' ], 10, 2 );

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}

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/**

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* Content field option.

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*

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* @since 1.9.4

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*

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* @param array $field Field data and settings.

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*/

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private function field_option_content( array $field ): void {

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$value = ( isset( $field['content'] ) && ! wpforms_is_empty_string( $field['content'] ) ) ? wp_kses( $field['content'], $this->get_allowed_html_tags() ) : '';

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$output = $this->field_element(

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'row',

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$field,

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[

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'slug' => 'content',

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'content' => $this->get_content_editor( $value, $field ),

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],

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false

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);

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$output .= wpforms_render(

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'fields/content/action-buttons',

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[

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'id' => $field['id'],

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'preview' => $this->get_input_string( 'preview' ),

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'expand' => $this->get_input_string( 'expand' ),

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],

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true

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);

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printf( '<div class="wpforms-expandable-editor">%s</div><div class="wpforms-expandable-editor-clear"></div>', $output ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

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}

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/**

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* Add class name to the field option top element.

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*

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* @since 1.9.4

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*

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* @param string|mixed $css_class CSS classes.

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* @param array $field Field data.

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*

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* @return string

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*/

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public function builder_field_option_class( $css_class, $field ): string {

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$css_class = (string) $css_class;

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return $this->type === $field['type'] ? $css_class . ' wpforms-field-has-tinymce' : $css_class;

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}

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/**

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* Localized strings for `content-field` JS script.

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*

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* @since 1.9.4

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*

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* @param array|mixed $strings Localized strings.

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* @param array $form The form element.

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*

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* @return array

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* @noinspection PhpUnusedParameterInspection

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*/

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public function content_builder_strings( $strings, $form ): array { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.FoundAfterLastUsed

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$strings = (array) $strings;

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$strings['content_field'] = [

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'collapse' => wp_strip_all_tags( $this->get_input_string( 'collapse' ) ),

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'expand' => wp_strip_all_tags( $this->get_input_string( 'expand' ) ),

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'editor_default_value' => wp_kses( $this->get_input_string( 'editor_default_value' ), $this->get_allowed_html_tags() ),

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'content_editor_plugins' => $this->content_editor_plugins(),

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'content_editor_toolbar' => $this->content_editor_toolbar(),

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'content_editor_css_url' => $this->content_css_url(),

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'editor_height' => $this->get_editor_height(),

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'allowed_html' => array_keys( $this->get_allowed_html_tags() ),

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'invalid_elements' => $this->get_invalid_elements(),

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'quicktags_buttons' => $this->get_quicktags_buttons(),

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'body_class' => $this->get_editor_body_class(),

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];

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return $this->add_supported_field_type( $strings, $this->type );

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}

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/**

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* Add editor stylesheet.

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*

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* @since 1.9.4

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*

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* @param array|mixed $stylesheets Editor stylesheets.

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*

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* @return array

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*/

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public function editor_stylesheets( $stylesheets ): array {

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$stylesheets = (array) $stylesheets;

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if ( wpforms_is_admin_page( 'builder' ) ) {

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$stylesheets[] = $this->content_css_url();

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}

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return $stylesheets;

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}

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/**

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* Edit some media view strings to reference a form instead of a page/post.

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*

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* @since 1.9.4

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*

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* @param array|mixed $strings List of media view strings.

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* @param WP_Post $post Post object.

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*

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* @return array Modified media view strings.

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* @noinspection SqlResolve

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* @noinspection PhpMissingParamTypeInspection

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* @noinspection PhpUnusedParameterInspection

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*/

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public function edit_media_view_strings( $strings, $post ): array { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.FoundAfterLastUsed

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$strings = (array) $strings;

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if ( wpforms_is_admin_page( 'builder' ) ) {

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$strings['insertIntoPost'] = esc_html__( /** @lang text */ 'Insert into form', 'wpforms-lite' );

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$strings['uploadedToThisPost'] = esc_html__( 'Uploaded to this form', 'wpforms-lite' );

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}

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return $strings;

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}

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/**

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* Remove fullscreen button if this is other tinymce editor instance than content field editor.

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*

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* @since 1.9.4

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*

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* @param array|mixed $buttons Array of editor buttons.

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* @param string $editor_id Editor textarea ID.

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*

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* @return array

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*/

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public function teeny_mce_buttons( $buttons, $editor_id ): array {

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$buttons = (array) $buttons;

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$is_other_editor = strpos( $editor_id, 'wpforms_panel_' ) === 0 || $editor_id === 'entry_note';

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$key = array_search( 'fullscreen', $buttons, true );

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if ( $is_other_editor && $key !== false ) {

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unset( $buttons[ $key ] );

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}

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return $buttons;

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}

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/**

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* Get default content editor plugins.

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*

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* @since 1.9.4

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*

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* @return array Plugins array.

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*/

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private function content_editor_plugins(): array {

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$plugins = [

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'charmap',

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'colorpicker',

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'hr',

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'link',

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'image',

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'lists',

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'paste',

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'tabfocus',

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'textcolor',

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'wordpress',

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'wpemoji',

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'wptextpattern',

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'wpeditimage',

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];

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/**

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* Get content editor plugins filter.

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*

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* @since 1.7.8

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*

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* @param array $plugins Plugins array.

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*/

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return (array) apply_filters( 'wpforms_builder_content_input_get_content_editor_plugins', $plugins );

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}

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/**

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* Get default content editor toolbar.

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*

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* @since 1.9.4

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*

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* @return array Toolbar buttons array.

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*/

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private function content_editor_toolbar(): array {

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$toolbar = [

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'formatselect',

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'bold',

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'italic',

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'underline',

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'strikethrough',

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'forecolor',

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'link',

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'bullist',

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'numlist',

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'blockquote',

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'alignleft',

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'aligncenter',

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'alignright',

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];

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/**

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* Get content editor toolbar buttons filter.

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*

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* @since 1.7.8

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*

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* @param array $toolbar Toolbar buttons array.

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*/

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return (array) apply_filters( 'wpforms_builder_content_input_get_content_editor_toolbar', $toolbar );

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}

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/**

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* Enqueue wpforms-content-field script.

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*

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* @since 1.9.4

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*

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* @param string $view Current view.

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*

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* @noinspection PhpUnusedParameterInspection

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*/

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public function builder_enqueues( $view ): void { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found

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$wp_min = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';

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// Enqueue editor styles explicitly. Hack for broken styles when the Content field is deleted and Settings > Confirmation editor get broken.

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// phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion

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wp_enqueue_style(

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'wpforms-editor-styles',

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includes_url( "css/editor$wp_min.css" )

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);

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}

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/**

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* Content editor tools template.

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*

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* @since 1.9.4

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*/

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public function content_editor_tools_template(): void {

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?>

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<script type="text/html" id="tmpl-wpforms-content-editor-tools">

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<div id="wp-wpforms-field-{{data.optionId}}-content-editor-tools" class="wp-editor-tools hide-if-no-js">

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<div id="wp-wpforms-field-{{data.optionId}}-content-media-buttons" class="wp-media-buttons">

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<button type="button" id="insert-media-button" class="button insert-media add_media" data-editor="wpforms-field-{{data.optionId}}-content">

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<span class="wp-media-buttons-icon"></span>

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<?php esc_html_e( 'Add Media', 'wpforms-lite' ); ?>

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</button>

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</div>

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<div class="wp-editor-tabs">

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<button type="button" id="wpforms-field-{{data.optionId}}-content-tmce" class="wp-switch-editor switch-tmce" data-wp-editor-id="wpforms-field-{{data.optionId}}-content">

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<?php esc_html_e( 'Visual', 'wpforms-lite' ); ?>

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</button>

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<button type="button" id="wpforms-field-{{data.optionId}}-content-html" class="wp-switch-editor switch-html" data-wp-editor-id="wpforms-field-{{data.optionId}}-content">

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<?php esc_html_e( 'Text', 'wpforms-lite' ); ?>

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</button>

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</div>

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</div>

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</script>

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<?php

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}

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/**

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* Register types in JS localization to use in WPFormsContentField.

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*

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* @since 1.9.4

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*

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* @param array $strings Localized strings.

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* @param string $type Field type.

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*

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* @return array

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*/

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private function add_supported_field_type( $strings, $type ): array {

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$other_supported_field_types = $strings['content_input']['supported_field_types'] ?? [];

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$strings['content_input'] = [

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'supported_field_types' => array_merge( $other_supported_field_types, [ $type ] ),

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];

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return $strings;

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}

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/**

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* Get translatable string.

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*

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* @since 1.9.4

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*

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* @param string $key String key.

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*

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* @return string

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*/

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private function get_input_string( $key ): string {

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if ( ! self::$translatable_strings ) {

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self::$translatable_strings = [

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'editor_default_value' => __( '<h4>Add Text and Images to Your Form With Ease</h4> <p>To get started, replace this text with your own.</p>', 'wpforms-lite' ),

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'expand' => __( 'Expand Editor', 'wpforms-lite' ),

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'collapse' => __( 'Collapse Editor', 'wpforms-lite' ),

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'preview' => __( 'Update Preview', 'wpforms-lite' ),

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];

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}

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return self::$translatable_strings[ $key ] ?? '';

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}

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/**

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* Show field preview in the right builder panel.

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*

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* @since 1.9.4

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*

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* @param array $field Field data.

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*/

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private function content_input_preview( $field ): void {

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$content = $field['content'] ?? $this->get_input_string( 'editor_default_value' );

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?>

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<div class="wpforms-field-content-preview">

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<?php echo wp_kses( $this->do_caption_shortcode( wpautop( $content ) ), $this->get_allowed_html_tags() ); ?>

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<div class="wpforms-field-content-preview-end"></div>

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</div>

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<?php

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}

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/**

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* Check if shortcode is [caption] and if not, return processed content string.

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*

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* @since 1.9.4

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*

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* @param false|string $value Short-circuit return value. Either false or the value to replace the shortcode with.

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* @param string $tag Shortcode name.

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* @param array|string $attr Shortcode attributes array or empty string.

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* @param array $m Regular expression match array.

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*

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* @return false|string

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* @noinspection PhpUnusedParameterInspection

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* @noinspection PhpMissingParamTypeInspection

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*/

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public function short_circuit_shortcodes( $value, $tag, $attr, $m ) {

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return $tag !== 'caption' ? $m[0] : false;

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}

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/**

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* Check if shortcode is [caption] and if not, short-circuit processing the shortcode.

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*

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* @since 1.9.4

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*

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* @param string $content Editor content.

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*

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* @return string

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*/

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protected function do_caption_shortcode( $content ): string {

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/**

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* Check if user allowed executing all shortcodes on content field value.

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*

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* @since 1.7.8

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*

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* @param bool $bool Boolean if shortcodes should be executed.

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*/

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if ( apply_filters( 'wpforms_content_input_value_do_shortcode', false ) && ! wpforms_is_admin_page( 'builder' ) ) {

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return do_shortcode( $content );

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}

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add_filter( 'pre_do_shortcode_tag', [ $this, 'short_circuit_shortcodes' ], 10, 4 );

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$content = do_shortcode( $content );

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remove_filter( 'pre_do_shortcode_tag', [ $this, 'short_circuit_shortcodes' ] );

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return $content;

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}

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/**

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* Get TinyMCE editor for content field.

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*

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* @since 1.9.4

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*

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* @param string $value Field value.

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* @param array $field Field data.

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*

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* @return string

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*/

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private function get_content_editor( $value, $field ): string {

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/*

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Heads up, if you are going to edit editor settings, bear in mind editor is instantiated in two places:

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- PHP instance in \WPForms\Admin\Builder\Traits\ContentInput::get_content_editor

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- JS instance in WPForms.Admin.Builder.ContentField.initTinyMCE

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*/

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$settings = [

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'media_buttons' => true,

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'drag_drop_upload' => true,

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'textarea_name' => "fields[{$field['id']}][content]",

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'editor_height' => $this->get_editor_height(),

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'editor_class' => ! empty( $field['required'] ) ? 'wpforms-field-required' : '',

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'tinymce' => [

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'init_instance_callback' => $this->is_disabled_field ? '' : 'wpformsContentFieldTinyMCECallback',

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'plugins' => implode( ',', $this->content_editor_plugins() ),

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'toolbar1' => implode( ',', $this->content_editor_toolbar() ),

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'invalid_elements' => $this->get_invalid_elements(),

[463] Fix | Delete

'relative_urls' => false,

[464] Fix | Delete

'remove_script_host' => false,

[465] Fix | Delete

'object_resizing' => false,

[466] Fix | Delete

'body_class' => $this->get_editor_body_class(),

[467] Fix | Delete

],

[468] Fix | Delete

'quicktags' => [

[469] Fix | Delete

'buttons' => $this->get_quicktags_buttons(),

[470] Fix | Delete

],

[471] Fix | Delete

];

[472] Fix | Delete

[473] Fix | Delete

ob_start();

[474] Fix | Delete

wp_editor( $value, 'wpforms-field-option-' . $field['id'] . '-content', $settings );

[475] Fix | Delete

[476] Fix | Delete

return ob_get_clean();

[477] Fix | Delete

}

[478] Fix | Delete

[479] Fix | Delete

/**

[480] Fix | Delete

* Get invalid HTML in content editor.

[481] Fix | Delete

*

[482] Fix | Delete

* @since 1.9.4

[483] Fix | Delete

*

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* @return string Invalid HTML elements.

[485] Fix | Delete

*/

[486] Fix | Delete

private function get_invalid_elements(): string {

[487] Fix | Delete

[488] Fix | Delete

return 'form,input,textarea,select,option,script,embed,iframe';

[489] Fix | Delete

}

[490] Fix | Delete

[491] Fix | Delete

/**

[492] Fix | Delete

* Get the list of the `quicktags` buttons.

[493] Fix | Delete

*

[494] Fix | Delete

* @since 1.9.4

[495] Fix | Delete

*

[496] Fix | Delete

* @return string Quicktags buttons.

[497] Fix | Delete

*/

[498] Fix | Delete

private function get_quicktags_buttons(): string {

[499] Fix | Delete