WP_Widget_Text::form() WordPress Method

	public function form( $instance ) {
		$instance = wp_parse_args(
			(array) $instance,
			array(
				'title' => '',
				'text'  => '',
			)
		);
		?>
		<?php if ( ! $this->is_legacy_instance( $instance ) ) : ?>
			<?php

			if ( user_can_richedit() ) {
				add_filter( 'the_editor_content', 'format_for_editor', 10, 2 );
				$default_editor = 'tinymce';
			} else {
				$default_editor = 'html';
			}

			/** This filter is documented in wp-includes/class-wp-editor.php */
			$text = apply_filters( 'the_editor_content', $instance['text'], $default_editor );

			// Reset filter addition.
			if ( user_can_richedit() ) {
				remove_filter( 'the_editor_content', 'format_for_editor' );
			}

			// Prevent premature closing of textarea in case format_for_editor() didn't apply or the_editor_content filter did a wrong thing.
			$escaped_text = preg_replace( '#</textarea#i', '&lt;/textarea', $text );

			?>
			<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'] ); ?>">
			<textarea id="<?php echo $this->get_field_id( 'text' ); ?>" name="<?php echo $this->get_field_name( 'text' ); ?>" class="text sync-input" hidden><?php echo $escaped_text; ?></textarea>
			<input id="<?php echo $this->get_field_id( 'filter' ); ?>" name="<?php echo $this->get_field_name( 'filter' ); ?>" class="filter sync-input" type="hidden" value="on">
			<input id="<?php echo $this->get_field_id( 'visual' ); ?>" name="<?php echo $this->get_field_name( 'visual' ); ?>" class="visual sync-input" type="hidden" value="on">
		<?php else : ?>
			<input id="<?php echo $this->get_field_id( 'visual' ); ?>" name="<?php echo $this->get_field_name( 'visual' ); ?>" class="visual" type="hidden" value="">
			<p>
				<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
				<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" />
			</p>
			<div class="notice inline notice-info notice-alt">
				<?php if ( ! isset( $instance['visual'] ) ) : ?>
					<p><?php _e( 'This widget may contain code that may work better in the &#8220;Custom HTML&#8221; widget. How about trying that widget instead?' ); ?></p>
				<?php else : ?>
					<p><?php _e( 'This widget may have contained code that may work better in the &#8220;Custom HTML&#8221; widget. If you have not yet, how about trying that widget instead?' ); ?></p>
				<?php endif; ?>
			</div>
			<p>
				<label for="<?php echo $this->get_field_id( 'text' ); ?>"><?php _e( 'Content:' ); ?></label>
				<textarea class="widefat" rows="16" cols="20" id="<?php echo $this->get_field_id( 'text' ); ?>" name="<?php echo $this->get_field_name( 'text' ); ?>"><?php echo esc_textarea( $instance['text'] ); ?></textarea>
			</p>
			<p>
				<input id="<?php echo $this->get_field_id( 'filter' ); ?>" name="<?php echo $this->get_field_name( 'filter' ); ?>" type="checkbox"<?php checked( ! empty( $instance['filter'] ) ); ?> />&nbsp;<label for="<?php echo $this->get_field_id( 'filter' ); ?>"><?php _e( 'Automatically add paragraphs' ); ?></label>
			</p>
			<?php
		endif;
	}