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  1. <?php
  2. /**
  3. * Navigation Menu API: Walker_Nav_Menu_Checklist class
  4. *
  5. * @package WordPress
  6. * @subpackage Administration
  7. * @since 4.4.0
  8. */
  9. /**
  10. * Create HTML list of nav menu input items.
  11. *
  12. * @since 3.0.0
  13. * @uses Walker_Nav_Menu
  14. */
  15. class Walker_Nav_Menu_Checklist extends Walker_Nav_Menu {
  16. /**
  17. *
  18. * @param array $fields
  19. */
  20. public function __construct( $fields = false ) {
  21. if ( $fields ) {
  22. $this->db_fields = $fields;
  23. }
  24. }
  25. /**
  26. * Starts the list before the elements are added.
  27. *
  28. * @see Walker_Nav_Menu::start_lvl()
  29. *
  30. * @since 3.0.0
  31. *
  32. * @param string $output Passed by reference. Used to append additional content.
  33. * @param int $depth Depth of page. Used for padding.
  34. * @param array $args Not used.
  35. */
  36. public function start_lvl( &$output, $depth = 0, $args = array() ) {
  37. $indent = str_repeat( "\t", $depth );
  38. $output .= "\n$indent<ul class='children'>\n";
  39. }
  40. /**
  41. * Ends the list of after the elements are added.
  42. *
  43. * @see Walker_Nav_Menu::end_lvl()
  44. *
  45. * @since 3.0.0
  46. *
  47. * @param string $output Passed by reference. Used to append additional content.
  48. * @param int $depth Depth of page. Used for padding.
  49. * @param array $args Not used.
  50. */
  51. public function end_lvl( &$output, $depth = 0, $args = array() ) {
  52. $indent = str_repeat( "\t", $depth );
  53. $output .= "\n$indent</ul>";
  54. }
  55. /**
  56. * Start the element output.
  57. *
  58. * @see Walker_Nav_Menu::start_el()
  59. *
  60. * @since 3.0.0
  61. *
  62. * @global int $_nav_menu_placeholder
  63. *
  64. * @param string $output Passed by reference. Used to append additional content.
  65. * @param object $item Menu item data object.
  66. * @param int $depth Depth of menu item. Used for padding.
  67. * @param array $args Not used.
  68. * @param int $id Not used.
  69. */
  70. public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
  71. global $_nav_menu_placeholder;
  72. $_nav_menu_placeholder = ( 0 > $_nav_menu_placeholder ) ? intval($_nav_menu_placeholder) - 1 : -1;
  73. $possible_object_id = isset( $item->post_type ) && 'nav_menu_item' == $item->post_type ? $item->object_id : $_nav_menu_placeholder;
  74. $possible_db_id = ( ! empty( $item->ID ) ) && ( 0 < $possible_object_id ) ? (int) $item->ID : 0;
  75. $indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
  76. $output .= $indent . '<li>';
  77. $output .= '<label class="menu-item-title">';
  78. $output .= '<input type="checkbox" class="menu-item-checkbox';
  79. if ( ! empty( $item->front_or_home ) )
  80. $output .= ' add-to-top';
  81. $output .= '" name="menu-item[' . $possible_object_id . '][menu-item-object-id]" value="'. esc_attr( $item->object_id ) .'" /> ';
  82. if ( ! empty( $item->label ) ) {
  83. $title = $item->label;
  84. } elseif ( isset( $item->post_type ) ) {
  85. /** This filter is documented in wp-includes/post-template.php */
  86. $title = apply_filters( 'the_title', $item->post_title, $item->ID );
  87. if ( ! empty( $item->front_or_home ) && _x( 'Home', 'nav menu home label' ) !== $title )
  88. $title = sprintf( _x( 'Home: %s', 'nav menu front page title' ), $title );
  89. }
  90. $output .= isset( $title ) ? esc_html( $title ) : esc_html( $item->title );
  91. $output .= '</label>';
  92. // Menu item hidden fields
  93. $output .= '<input type="hidden" class="menu-item-db-id" name="menu-item[' . $possible_object_id . '][menu-item-db-id]" value="' . $possible_db_id . '" />';
  94. $output .= '<input type="hidden" class="menu-item-object" name="menu-item[' . $possible_object_id . '][menu-item-object]" value="'. esc_attr( $item->object ) .'" />';
  95. $output .= '<input type="hidden" class="menu-item-parent-id" name="menu-item[' . $possible_object_id . '][menu-item-parent-id]" value="'. esc_attr( $item->menu_item_parent ) .'" />';
  96. $output .= '<input type="hidden" class="menu-item-type" name="menu-item[' . $possible_object_id . '][menu-item-type]" value="'. esc_attr( $item->type ) .'" />';
  97. $output .= '<input type="hidden" class="menu-item-title" name="menu-item[' . $possible_object_id . '][menu-item-title]" value="'. esc_attr( $item->title ) .'" />';
  98. $output .= '<input type="hidden" class="menu-item-url" name="menu-item[' . $possible_object_id . '][menu-item-url]" value="'. esc_attr( $item->url ) .'" />';
  99. $output .= '<input type="hidden" class="menu-item-target" name="menu-item[' . $possible_object_id . '][menu-item-target]" value="'. esc_attr( $item->target ) .'" />';
  100. $output .= '<input type="hidden" class="menu-item-attr_title" name="menu-item[' . $possible_object_id . '][menu-item-attr_title]" value="'. esc_attr( $item->attr_title ) .'" />';
  101. $output .= '<input type="hidden" class="menu-item-classes" name="menu-item[' . $possible_object_id . '][menu-item-classes]" value="'. esc_attr( implode( ' ', $item->classes ) ) .'" />';
  102. $output .= '<input type="hidden" class="menu-item-xfn" name="menu-item[' . $possible_object_id . '][menu-item-xfn]" value="'. esc_attr( $item->xfn ) .'" />';
  103. }
  104. } // Walker_Nav_Menu_Checklist