<?php

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final class NF_Display_Shortcodes

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{

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public function __construct()

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{

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add_shortcode( 'nf_preview', array( $this, 'display_form_preview' ) );

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add_shortcode( 'ninja_form', array( $this, 'display_form_front_end' ) );

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add_shortcode( 'ninja_forms', array( $this, 'display_form_front_end' ) );

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add_shortcode( 'ninja_forms_display_form', array( $this, 'display_form_front_end' ) );

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}

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public function display_form_preview( $atts = array() )

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{

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if( ! isset( $atts[ 'id' ] ) ) return $this->display_no_id();

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ob_start();

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Ninja_Forms()->display( $atts['id'], TRUE );

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return ob_get_clean();

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}

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public function display_form_front_end( $atts = array() )

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{

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if( ! isset( $atts[ 'id' ] ) ) return $this->display_no_id();

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ob_start();

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Ninja_Forms()->display( $atts['id'] );

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return ob_get_clean();

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}

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/**

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* TODO: Extract output to template files.

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* @return string

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*/

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private function display_no_id()

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{

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$output = esc_html__( 'Notice: Ninja Forms shortcode used without specifying a form.', 'ninja-forms' );

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// TODO: Maybe support filterable permissions.

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if( ! current_user_can( 'manage_options' ) ) return "<!-- $output -->";

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// TODO: Log error for support reference.

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// TODO: Maybe display notice if not logged in.

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trigger_error( esc_html__( 'Ninja Forms shortcode used without specifying a form.', 'ninja-forms' ) );

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return "<div style='border: 3px solid red; padding: 1em; margin: 1em auto;'>$output</div>";

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}

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}

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