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<?php |
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/** |
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* Breadcrumb trail renderer. |
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* |
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* @package carbon-breadcrumbs |
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*/ |
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/** |
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* The breadcrumb trail render class. |
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* |
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* Responsible for the breadcrumb trail rendering settings and process. |
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*/ |
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class Carbon_Breadcrumb_Trail_Renderer { |
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/** |
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* String used between the breadcrumb items when displaying the breadcrumbs. |
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* |
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* @access protected |
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* @var string |
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*/ |
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protected $glue = ' > '; |
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/** |
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* String before the opening link tag. |
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* |
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* @access protected |
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* @var string |
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*/ |
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protected $link_before = ''; |
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/** |
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* String after the closing link tag. |
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* |
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* @access protected |
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* @var string |
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*/ |
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protected $link_after = ''; |
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/** |
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* String before all breadcrumb items. |
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* |
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* @access protected |
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* @var string |
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*/ |
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protected $wrapper_before = ''; |
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/** |
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* String after all breadcrumb items. |
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* |
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* @access protected |
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* @var string |
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*/ |
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protected $wrapper_after = ''; |
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/** |
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* String before the title of a breadcrumb item. |
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* |
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* @access protected |
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* @var string |
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*/ |
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protected $title_before = ''; |
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/** |
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* String before the title of a breadcrumb item. |
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* |
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* @access protected |
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* @var string |
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*/ |
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protected $title_after = ''; |
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/** |
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* Minimum items necessary to display the breadcrumb trail. |
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* |
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* @access protected |
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* @var int |
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*/ |
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protected $min_items = 2; |
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/** |
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* Whether to display the last item as link. |
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* |
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* @access protected |
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* @var bool |
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*/ |
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protected $last_item_link = true; |
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/** |
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* Whether to display the home item. |
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* |
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* @access protected |
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* @var bool |
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*/ |
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protected $display_home_item = true; |
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/** |
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* The title of the home item. |
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* |
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* @access protected |
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* @var string |
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*/ |
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protected $home_item_title = ''; |
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/** |
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* Constructor. |
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* |
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* Creates and configures a new breadcrumb trail with the provided settings. |
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* |
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* @access public |
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* |
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* @param array $args Configuration options to modify the breadcrumb trail output. |
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*/ |
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public function __construct( $args = array() ) { |
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// Default configuration options. |
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$defaults = array( |
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'home_item_title' => __( 'Home', 'carbon_breadcrumbs' ), |
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); |
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// Allow default options to be filtered. |
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$defaults = apply_filters( 'carbon_breadcrumbs_renderer_default_options', $defaults ); |
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// Parse configuration options. |
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$args = wp_parse_args( $args, $defaults ); |
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// Set configuration options. |
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foreach ( $args as $arg_name => $arg_value ) { |
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$method = 'set_' . $arg_name; |
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if ( method_exists( $this, $method ) ) { |
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call_user_func( array( $this, $method ), $arg_value ); |
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} |
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} |
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} |
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/** |
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* Retrieve the string, used for concatenating the breadcrumb items. |
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* |
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* @access public |
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* |
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* @return string $glue String, used for concatenating the breadcrumb items. |
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*/ |
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public function get_glue() { |
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return $this->glue; |
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} |
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/** |
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* Modify the string, used for concatenating the breadcrumb items. |
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* |
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* @access public |
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* |
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* @param string $glue String, used for concatenating the breadcrumb items. |
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*/ |
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public function set_glue( $glue = '' ) { |
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$this->glue = $glue; |
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} |
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/** |
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* Retrieve the string before the opening link tag of a breadcrumb item. |
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* |
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* @access public |
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* |
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* @return string $link_before String before the opening link tag of a breadcrumb item. |
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*/ |
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public function get_link_before() { |
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return $this->link_before; |
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} |
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/** |
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* Modify the string before the opening link tag of a breadcrumb item. |
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* |
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* @access public |
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* |
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* @param string $link_before String before the opening link tag of a breadcrumb item. |
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*/ |
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public function set_link_before( $link_before = '' ) { |
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$this->link_before = $link_before; |
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} |
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/** |
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* Retrieve the string after the closing link tag of a breadcrumb item. |
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* |
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* @access public |
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* |
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* @return string $link_after String after the closing link tag of a breadcrumb item. |
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*/ |
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public function get_link_after() { |
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return $this->link_after; |
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} |
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/** |
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* Modify the string after the closing link tag of a breadcrumb item. |
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* |
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* @access public |
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* |
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* @param string $link_after String after the closing link tag of a breadcrumb item. |
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*/ |
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public function set_link_after( $link_after = '' ) { |
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$this->link_after = $link_after; |
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} |
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/** |
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* Retrieve the string before the breadcrumb items. |
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* |
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* @access public |
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* |
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* @return string $wrapper_before String before the breadcrumb items. |
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*/ |
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public function get_wrapper_before() { |
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return $this->wrapper_before; |
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} |
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/** |
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* Modify the string before the breadcrumb items. |
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* |
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* @access public |
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* |
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* @param string $wrapper_before String before the breadcrumb items. |
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*/ |
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public function set_wrapper_before( $wrapper_before = '' ) { |
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$this->wrapper_before = $wrapper_before; |
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} |
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/** |
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* Retrieve the string after the breadcrumb items. |
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* |
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* @access public |
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* |
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* @return string $wrapper_after String after the breadcrumb items. |
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*/ |
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public function get_wrapper_after() { |
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return $this->wrapper_after; |
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} |
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/** |
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* Modify the string after the breadcrumb items. |
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* |
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* @access public |
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* |
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* @param string $wrapper_after String after the breadcrumb items. |
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*/ |
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public function set_wrapper_after( $wrapper_after = '' ) { |
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$this->wrapper_after = $wrapper_after; |
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} |
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/** |
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* Retrieve the string before the title of a breadcrumb item. |
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* |
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* @access public |
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* |
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* @return string $title_before String before the title of a breadcrumb item. |
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*/ |
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public function get_title_before() { |
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return $this->title_before; |
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} |
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/** |
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* Modify the string before the title of a breadcrumb item. |
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* |
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* @access public |
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* |
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* @param string $title_before String before the title of a breadcrumb item. |
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*/ |
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public function set_title_before( $title_before = '' ) { |
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$this->title_before = $title_before; |
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} |
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/** |
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* Retrieve the string after the title of a breadcrumb item. |
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* |
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* @access public |
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* |
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* @return string $title_after String after the title of a breadcrumb item. |
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*/ |
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public function get_title_after() { |
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return $this->title_after; |
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} |
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/** |
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* Modify the string after the title of a breadcrumb item. |
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* |
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* @access public |
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* |
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* @param string $title_after String after the title of a breadcrumb item. |
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*/ |
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public function set_title_after( $title_after = '' ) { |
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$this->title_after = $title_after; |
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} |
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/** |
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* Retrieve the minimum number of items, necessary to display the trail. |
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* |
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* @access public |
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* |
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* @return int $min_items Minimum number of items, necessary to display the trail |
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*/ |
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public function get_min_items() { |
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return $this->min_items; |
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} |
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/** |
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* Modify the minimum number of items, necessary to display the trail. |
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* |
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* @access public |
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* |
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* @param int $min_items Minimum number of items, necessary to display the trail. |
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*/ |
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public function set_min_items( $min_items ) { |
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$this->min_items = $min_items; |
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} |
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/** |
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* Whether the last item will be displayed as a link. |
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* |
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* @access public |
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* |
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* @return bool $last_item_link Whether the last item will be displayed as a link. |
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*/ |
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public function get_last_item_link() { |
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return (bool) $this->last_item_link; |
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} |
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/** |
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* Change whether the last item will be displayed as a link. |
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* |
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* @access public |
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* |
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* @param bool $last_item_link Whether the last item will be displayed as a link. |
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*/ |
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public function set_last_item_link( $last_item_link ) { |
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$this->last_item_link = (bool) $last_item_link; |
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} |
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/** |
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* Whether the home item will be displayed. |
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* |
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* @access public |
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* |
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* @return bool $display_home_item Whether the home item will be displayed. |
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*/ |
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public function get_display_home_item() { |
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return (bool) $this->display_home_item; |
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} |
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/** |
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* Change whether the home item will be displayed. |
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* |
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347
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* @access public |
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348
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* |
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349
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* @param bool $display_home_item Whether the home item will be displayed. |
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*/ |
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public function set_display_home_item( $display_home_item ) { |
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352
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$this->display_home_item = (bool) $display_home_item; |
|
353
|
|
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} |
|
354
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|
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|
|
355
|
|
|
/** |
|
356
|
|
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* Retrieve the title of the home item. |
|
357
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* |
|
358
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* @access public |
|
359
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|
|
* |
|
360
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* @return string $home_item_title The title of the home item. |
|
361
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|
|
*/ |
|
362
|
|
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public function get_home_item_title() { |
|
363
|
|
|
return $this->home_item_title; |
|
364
|
|
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} |
|
365
|
|
|
|
|
366
|
|
|
/** |
|
367
|
|
|
* Modify the title of the home item. |
|
368
|
|
|
* |
|
369
|
|
|
* @access public |
|
370
|
|
|
* |
|
371
|
|
|
* @param string $home_item_title The title of the home item. |
|
372
|
|
|
*/ |
|
373
|
|
|
public function set_home_item_title( $home_item_title = '' ) { |
|
374
|
|
|
$this->home_item_title = $home_item_title; |
|
375
|
|
|
} |
|
376
|
|
|
|
|
377
|
|
|
/** |
|
378
|
|
|
* Prepare for rendering. |
|
379
|
|
|
* Allows renderer to be modified in the last second. |
|
380
|
|
|
* Also autosorts the trail items, if autosorting is enabled. |
|
381
|
|
|
* |
|
382
|
|
|
* @access public |
|
383
|
|
|
* |
|
384
|
|
|
* @param Carbon_Breadcrumb_Trail $trail Trail object. |
|
385
|
|
|
*/ |
|
386
|
|
|
public function prepare_for_rendering( $trail ) { |
|
387
|
|
|
// Last chance to modify render settings before rendering. |
|
388
|
|
|
do_action( 'carbon_breadcrumbs_before_render', $this ); |
|
389
|
|
|
|
|
390
|
|
|
// Whether to auto-sort the items. |
|
391
|
|
|
$auto_sort = apply_filters( 'carbon_breadcrumbs_auto_sort_items', true ); |
|
392
|
|
|
if ( $auto_sort ) { |
|
393
|
|
|
$trail->sort_items(); |
|
394
|
|
|
} |
|
395
|
|
|
} |
|
396
|
|
|
|
|
397
|
|
|
/** |
|
398
|
|
|
* Render the given breadcrumb trail. |
|
399
|
|
|
* |
|
400
|
|
|
* @access public |
|
401
|
|
|
* |
|
402
|
|
|
* @param Carbon_Breadcrumb_Trail $trail The trail object. |
|
403
|
|
|
* @param bool $return Whether to return the output. |
|
404
|
|
|
* @return string|void $output The output HTML if $return is true. |
|
405
|
|
|
*/ |
|
406
|
|
|
public function render( Carbon_Breadcrumb_Trail $trail, $return = false ) { |
|
407
|
|
|
// If the items are less than the minimum, nothing should be rendered. |
|
408
|
|
|
if ( $trail->get_total_items() < $this->get_min_items() ) { |
|
409
|
|
|
return; |
|
410
|
|
|
} |
|
411
|
|
|
|
|
412
|
|
|
// Prepare the trail & renderer for rendering. |
|
413
|
|
|
$this->prepare_for_rendering( $trail ); |
|
414
|
|
|
|
|
415
|
|
|
// Render the items. |
|
416
|
|
|
$items_output = $this->render_items( $trail ); |
|
417
|
|
|
|
|
418
|
|
|
// Implode the breadcrumb items and wrap them with the configured wrappers. |
|
419
|
|
|
$output = $this->get_wrapper_before(); |
|
420
|
|
|
$output .= implode( $this->get_glue(), $items_output ); |
|
421
|
|
|
$output .= $this->get_wrapper_after(); |
|
422
|
|
|
|
|
423
|
|
|
if ( $return ) { |
|
424
|
|
|
return $output; |
|
425
|
|
|
} |
|
426
|
|
|
|
|
427
|
|
|
echo wp_kses( $output, wp_kses_allowed_html( 'post' ) ); |
|
428
|
|
|
} |
|
429
|
|
|
|
|
430
|
|
|
/** |
|
431
|
|
|
* Render the breadcrumb trail items. |
|
432
|
|
|
* |
|
433
|
|
|
* @access public |
|
434
|
|
|
* |
|
435
|
|
|
* @param Carbon_Breadcrumb_Trail $trail The trail object. |
|
436
|
|
|
* @return array $output The output elements. |
|
437
|
|
|
*/ |
|
438
|
|
|
public function render_items( $trail ) { |
|
439
|
|
|
$items_output = array(); |
|
440
|
|
|
$counter = 0; |
|
441
|
|
|
$all_items = $trail->get_flat_items(); |
|
442
|
|
|
|
|
443
|
|
|
foreach ( $all_items as $item ) { |
|
444
|
|
|
// Allow each item to be filtered right before rendering. |
|
445
|
|
|
$item = apply_filters( 'carbon_breadcrumbs_item', $item, $trail, $this, $counter ); |
|
446
|
|
|
|
|
447
|
|
|
// Skip if $item is not a Carbon_Breadcrumb_Item instance. |
|
448
|
|
|
if ( ! ( $item instanceof Carbon_Breadcrumb_Item ) ) { |
|
449
|
|
|
continue; |
|
450
|
|
|
} |
|
451
|
|
|
|
|
452
|
|
|
// Increase the counter and render the item. |
|
453
|
|
|
$counter++; |
|
454
|
|
|
$item_renderer = new Carbon_Breadcrumb_Item_Renderer( $item, $trail, $this, $counter ); |
|
455
|
|
|
$items_output[] = $item_renderer->render(); |
|
456
|
|
|
} |
|
457
|
|
|
|
|
458
|
|
|
return $items_output; |
|
459
|
|
|
} |
|
460
|
|
|
|
|
461
|
|
|
} |
|
462
|
|
|
|