236 lines
7.3 KiB
PHP
236 lines
7.3 KiB
PHP
<?php // phpcs:disable WordPress.Files.FileName.InvalidClassFileName
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/**
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* Includes the Template Engine to load and handle all Template files of the Plugin.
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*
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* @filesource
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* @package footnotes
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* @since 1.5.0
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* @date 14.09.14 10:58
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*
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* @since 2.2.6 Adding: Templates: support for custom templates in sibling folder, thanks to @misfist issue report.
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* @since 2.5.0 Adding: Templates: Enable template location stack, thanks to @misfist code contribution.
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*/
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/**
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* Handles each Template file for the Plugin Frontend (e.g. Settings Dashboard, Public pages, ...).
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* Loads a template file, replaces all Placeholders and returns the replaced file content.
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*
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* @since 1.5.0
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*/
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class MCI_Footnotes_Template {
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/**
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* Directory name for dashboard templates.
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*
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* @since 1.5.0
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* @var string
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*/
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const C_STR_DASHBOARD = 'dashboard';
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/**
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* Directory name for public templates.
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*
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* @since 1.5.0
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* @var string
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*/
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const C_STR_PUBLIC = 'public';
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/**
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* Contains the content of the template after initialize.
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*
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* @since 1.5.0
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* @var string
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*/
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private $a_str_original_content = '';
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/**
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* Contains the content of the template after initialize with replaced place holders.
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*
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* @since 1.5.0
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* @var string
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*/
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private $a_str_replaced_content = '';
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/**
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* Plugin Directory
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*
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* @since 2.4.0d3
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*
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* @var string
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*/
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public $plugin_directory;
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/**
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* Class Constructor. Reads and loads the template file without replace any placeholder.
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*
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* @since 1.5.0
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* @param string $p_str_file_type Template file type (take a look on the Class constants).
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* @param string $p_str_file_name Template file name inside the Template directory without the file extension.
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* @param string $p_str_extension Optional Template file extension (default: html).
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*
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* - Adding: Templates: support for custom templates in sibling folder, thanks to @misfist issue report.
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*
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* @since 2.2.6
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* @date 2020-12-19T0606+0100
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*
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* @reporter @misfist
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* @link https://wordpress.org/support/topic/template-override-filter/
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*/
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public function __construct( $p_str_file_type, $p_str_file_name, $p_str_extension = 'html' ) {
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// No template file type and/or file name set.
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if ( empty( $p_str_file_type ) || empty( $p_str_file_name ) ) {
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return;
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}
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/**
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* Define plugin root path.
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*
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* @since 2.4.0d3
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*/
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$this->plugin_directory = plugin_dir_path( dirname( __FILE__ ) );
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/**
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* Modularize functions.
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*
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* @since 2.4.0d3
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*/
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$template = $this->get_template( $p_str_file_type, $p_str_file_name, $p_str_extension );
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if ( $template ) {
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$this->process_template( $template );
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} else {
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return;
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}
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}
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/**
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* Replace all placeholders specified in array.
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*
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* @since 1.5.0
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* @param array $p_arr_placeholders Placeholders (key = placeholder, value = value).
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* @return bool True on Success, False if Placeholders invalid.
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*/
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public function replace( $p_arr_placeholders ) {
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// No placeholders set.
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if ( empty( $p_arr_placeholders ) ) {
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return false;
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}
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// Template content is empty.
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if ( empty( $this->a_str_replaced_content ) ) {
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return false;
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}
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// Iterate through each placeholder and replace it with its value.
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foreach ( $p_arr_placeholders as $l_str_placeholder => $l_str_value ) {
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$this->a_str_replaced_content = str_replace( '[[' . $l_str_placeholder . ']]', $l_str_value, $this->a_str_replaced_content );
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}
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// Success.
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return true;
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}
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/**
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* Reloads the original content of the template file.
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*
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* @since 1.5.0
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*/
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public function reload() {
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$this->a_str_replaced_content = $this->a_str_original_content;
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}
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/**
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* Returns the content of the template file with replaced placeholders.
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*
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* @since 1.5.0
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* @return string Template content with replaced placeholders.
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*/
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public function get_content() {
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return $this->a_str_replaced_content;
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}
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/**
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* Process template file.
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*
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* @since 2.4.0d3
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*
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* @param string $template The template to be processed.
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* @return void
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*
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* @since 2.0.3 Replace tab with a space.
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* @since 2.0.3 Replace 2 spaces with 1.
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* @since 2.0.4 Collapse multiple spaces.
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* @since 2.2.6 Delete a space before a closing pointy bracket.
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* @since 2.5.4 Collapse HTML comments and PHP/JS docblocks (only).
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*/
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public function process_template( $template ) {
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// phpcs:disable WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
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$this->a_str_original_content = preg_replace( '#<!--.+?-->#s', '', file_get_contents( $template ) );
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// phpcs:enable
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$this->a_str_original_content = preg_replace( '#/\*\*.+?\*/#s', '', $this->a_str_original_content );
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$this->a_str_original_content = str_replace( "\n", '', $this->a_str_original_content );
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$this->a_str_original_content = str_replace( "\r", '', $this->a_str_original_content );
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$this->a_str_original_content = str_replace( "\t", ' ', $this->a_str_original_content );
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$this->a_str_original_content = preg_replace( '# +#', ' ', $this->a_str_original_content );
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$this->a_str_original_content = str_replace( ' >', '>', $this->a_str_original_content );
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$this->reload();
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}
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/**
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* Get the template.
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*
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* - Adding: Templates: Enable template location stack, thanks to @misfist code contribution.
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*
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* @since 2.4.0d3 Contribution.
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* @since 2.5.0 Release.
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*
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* @contributor @misfist
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* @link https://wordpress.org/support/topic/template-override-filter/#post-13864301
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*
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* @param string $p_str_file_type The file type of the template.
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* @param string $p_str_file_name The file name of the template.
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* @param string $p_str_extension The file extension of the template.
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* @return mixed false | template path
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*/
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public function get_template( $p_str_file_type, $p_str_file_name, $p_str_extension = 'html' ) {
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$located = false;
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/**
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* The directory can be changed.
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*
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* @usage to change location of templates to 'template_parts/footnotes/':
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* add_filter( 'mci_footnotes_template_directory', function( $directory ) {
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* return 'template_parts/footnotes/';
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* } );
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*/
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$template_directory = apply_filters( 'mci_footnotes_template_directory', 'footnotes/templates/' );
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$custom_directory = apply_filters( 'mci_footnotes_custom_template_directory', 'footnotes-custom/' );
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$template_name = $p_str_file_type . '/' . $p_str_file_name . '.' . $p_str_extension;
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/**
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* Look in active theme.
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*/
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if ( file_exists( trailingslashit( get_stylesheet_directory() ) . $template_directory . $template_name ) ) {
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$located = trailingslashit( get_stylesheet_directory() ) . $template_directory . $template_name;
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/**
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* Look in parent theme in case active is child.
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*/
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} elseif ( file_exists( trailingslashit( get_template_directory() ) . $template_directory . $template_name ) ) {
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$located = trailingslashit( get_template_directory() ) . $template_directory . $template_name;
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/**
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* Look in custom plugin directory.
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*/
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} elseif ( file_exists( trailingslashit( WP_PLUGIN_DIR ) . $custom_directory . 'templates/' . $template_name ) ) {
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$located = trailingslashit( WP_PLUGIN_DIR ) . $custom_directory . 'templates/' . $template_name;
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/**
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* Fall back to the templates shipped with the plugin.
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*/
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} elseif ( file_exists( $this->plugin_directory . 'templates/' . $template_name ) ) {
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$located = $this->plugin_directory . 'templates/' . $template_name;
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}
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return $located;
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}
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}
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