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1 <?php |
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2 /** |
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3 * Customize API: WP_Customize_Nav_Menu_Setting class |
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4 * |
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5 * @package WordPress |
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6 * @subpackage Customize |
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7 * @since 4.4.0 |
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8 */ |
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9 |
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10 /** |
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11 * Customize Setting to represent a nav_menu. |
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12 * |
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13 * Subclass of WP_Customize_Setting to represent a nav_menu taxonomy term, and |
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14 * the IDs for the nav_menu_items associated with the nav menu. |
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15 * |
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16 * @since 4.3.0 |
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17 * |
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18 * @see wp_get_nav_menu_object() |
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19 * @see WP_Customize_Setting |
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20 */ |
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21 class WP_Customize_Nav_Menu_Setting extends WP_Customize_Setting { |
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22 |
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23 const ID_PATTERN = '/^nav_menu\[(?P<id>-?\d+)\]$/'; |
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24 |
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25 const TAXONOMY = 'nav_menu'; |
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26 |
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27 const TYPE = 'nav_menu'; |
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28 |
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29 /** |
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30 * Setting type. |
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31 * |
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32 * @since 4.3.0 |
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33 * @var string |
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34 */ |
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35 public $type = self::TYPE; |
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36 |
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37 /** |
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38 * Default setting value. |
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39 * |
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40 * @since 4.3.0 |
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41 * @var array |
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42 * |
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43 * @see wp_get_nav_menu_object() |
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44 */ |
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45 public $default = array( |
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46 'name' => '', |
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47 'description' => '', |
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48 'parent' => 0, |
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49 'auto_add' => false, |
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50 ); |
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51 |
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52 /** |
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53 * Default transport. |
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54 * |
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55 * @since 4.3.0 |
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56 * @var string |
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57 */ |
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58 public $transport = 'postMessage'; |
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59 |
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60 /** |
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61 * The term ID represented by this setting instance. |
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62 * |
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63 * A negative value represents a placeholder ID for a new menu not yet saved. |
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64 * |
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65 * @since 4.3.0 |
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66 * @var int |
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67 */ |
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68 public $term_id; |
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69 |
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70 /** |
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71 * Previous (placeholder) term ID used before creating a new menu. |
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72 * |
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73 * This value will be exported to JS via the {@see 'customize_save_response'} filter |
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74 * so that JavaScript can update the settings to refer to the newly-assigned |
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75 * term ID. This value is always negative to indicate it does not refer to |
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76 * a real term. |
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77 * |
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78 * @since 4.3.0 |
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79 * @var int |
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80 * |
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81 * @see WP_Customize_Nav_Menu_Setting::update() |
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82 * @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response() |
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83 */ |
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84 public $previous_term_id; |
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85 |
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86 /** |
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87 * Whether or not update() was called. |
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88 * |
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89 * @since 4.3.0 |
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90 * @var bool |
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91 */ |
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92 protected $is_updated = false; |
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93 |
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94 /** |
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95 * Status for calling the update method, used in customize_save_response filter. |
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96 * |
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97 * See {@see 'customize_save_response'}. |
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98 * |
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99 * When status is inserted, the placeholder term ID is stored in `$previous_term_id`. |
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100 * When status is error, the error is stored in `$update_error`. |
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101 * |
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102 * @since 4.3.0 |
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103 * @var string updated|inserted|deleted|error |
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104 * |
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105 * @see WP_Customize_Nav_Menu_Setting::update() |
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106 * @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response() |
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107 */ |
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108 public $update_status; |
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109 |
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110 /** |
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111 * Any error object returned by wp_update_nav_menu_object() when setting is updated. |
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112 * |
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113 * @since 4.3.0 |
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114 * @var WP_Error |
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115 * |
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116 * @see WP_Customize_Nav_Menu_Setting::update() |
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117 * @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response() |
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118 */ |
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119 public $update_error; |
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120 |
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121 /** |
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122 * Constructor. |
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123 * |
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124 * Any supplied $args override class property defaults. |
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125 * |
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126 * @since 4.3.0 |
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127 * |
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128 * @param WP_Customize_Manager $manager Bootstrap Customizer instance. |
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129 * @param string $id An specific ID of the setting. Can be a |
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130 * theme mod or option name. |
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131 * @param array $args Optional. Setting arguments. |
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132 * |
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133 * @throws Exception If $id is not valid for this setting type. |
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134 */ |
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135 public function __construct( WP_Customize_Manager $manager, $id, array $args = array() ) { |
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136 if ( empty( $manager->nav_menus ) ) { |
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137 throw new Exception( 'Expected WP_Customize_Manager::$nav_menus to be set.' ); |
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138 } |
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139 |
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140 if ( ! preg_match( self::ID_PATTERN, $id, $matches ) ) { |
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141 throw new Exception( "Illegal widget setting ID: $id" ); |
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142 } |
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143 |
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144 $this->term_id = intval( $matches['id'] ); |
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145 |
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146 parent::__construct( $manager, $id, $args ); |
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147 } |
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148 |
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149 /** |
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150 * Get the instance data for a given widget setting. |
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151 * |
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152 * @since 4.3.0 |
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153 * |
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154 * @see wp_get_nav_menu_object() |
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155 * |
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156 * @return array Instance data. |
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157 */ |
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158 public function value() { |
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159 if ( $this->is_previewed && $this->_previewed_blog_id === get_current_blog_id() ) { |
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160 $undefined = new stdClass(); // Symbol. |
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161 $post_value = $this->post_value( $undefined ); |
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162 |
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163 if ( $undefined === $post_value ) { |
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164 $value = $this->_original_value; |
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165 } else { |
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166 $value = $post_value; |
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167 } |
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168 } else { |
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169 $value = false; |
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170 |
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171 // Note that a term_id of less than one indicates a nav_menu not yet inserted. |
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172 if ( $this->term_id > 0 ) { |
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173 $term = wp_get_nav_menu_object( $this->term_id ); |
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174 |
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175 if ( $term ) { |
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176 $value = wp_array_slice_assoc( (array) $term, array_keys( $this->default ) ); |
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177 |
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178 $nav_menu_options = (array) get_option( 'nav_menu_options', array() ); |
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179 $value['auto_add'] = false; |
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180 |
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181 if ( isset( $nav_menu_options['auto_add'] ) && is_array( $nav_menu_options['auto_add'] ) ) { |
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182 $value['auto_add'] = in_array( $term->term_id, $nav_menu_options['auto_add'] ); |
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183 } |
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184 } |
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185 } |
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186 |
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187 if ( ! is_array( $value ) ) { |
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188 $value = $this->default; |
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189 } |
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190 } |
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191 return $value; |
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192 } |
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193 |
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194 /** |
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195 * Handle previewing the setting. |
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196 * |
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197 * @since 4.3.0 |
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198 * @since 4.4.0 Added boolean return value |
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199 * |
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200 * @see WP_Customize_Manager::post_value() |
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201 * |
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202 * @return bool False if method short-circuited due to no-op. |
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203 */ |
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204 public function preview() { |
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205 if ( $this->is_previewed ) { |
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206 return false; |
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207 } |
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208 |
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209 $undefined = new stdClass(); |
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210 $is_placeholder = ( $this->term_id < 0 ); |
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211 $is_dirty = ( $undefined !== $this->post_value( $undefined ) ); |
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212 if ( ! $is_placeholder && ! $is_dirty ) { |
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213 return false; |
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214 } |
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215 |
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216 $this->is_previewed = true; |
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217 $this->_original_value = $this->value(); |
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218 $this->_previewed_blog_id = get_current_blog_id(); |
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219 |
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220 add_filter( 'wp_get_nav_menus', array( $this, 'filter_wp_get_nav_menus' ), 10, 2 ); |
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221 add_filter( 'wp_get_nav_menu_object', array( $this, 'filter_wp_get_nav_menu_object' ), 10, 2 ); |
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222 add_filter( 'default_option_nav_menu_options', array( $this, 'filter_nav_menu_options' ) ); |
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223 add_filter( 'option_nav_menu_options', array( $this, 'filter_nav_menu_options' ) ); |
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224 |
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225 return true; |
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226 } |
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227 |
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228 /** |
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229 * Filters the wp_get_nav_menus() result to ensure the inserted menu object is included, and the deleted one is removed. |
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230 * |
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231 * @since 4.3.0 |
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232 * |
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233 * @see wp_get_nav_menus() |
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234 * |
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235 * @param array $menus An array of menu objects. |
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236 * @param array $args An array of arguments used to retrieve menu objects. |
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237 * @return array |
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238 */ |
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239 public function filter_wp_get_nav_menus( $menus, $args ) { |
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240 if ( get_current_blog_id() !== $this->_previewed_blog_id ) { |
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241 return $menus; |
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242 } |
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243 |
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244 $setting_value = $this->value(); |
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245 $is_delete = ( false === $setting_value ); |
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246 $index = -1; |
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247 |
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248 // Find the existing menu item's position in the list. |
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249 foreach ( $menus as $i => $menu ) { |
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250 if ( (int) $this->term_id === (int) $menu->term_id || (int) $this->previous_term_id === (int) $menu->term_id ) { |
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251 $index = $i; |
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252 break; |
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253 } |
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254 } |
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255 |
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256 if ( $is_delete ) { |
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257 // Handle deleted menu by removing it from the list. |
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258 if ( -1 !== $index ) { |
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259 array_splice( $menus, $index, 1 ); |
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260 } |
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261 } else { |
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262 // Handle menus being updated or inserted. |
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263 $menu_obj = (object) array_merge( array( |
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264 'term_id' => $this->term_id, |
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265 'term_taxonomy_id' => $this->term_id, |
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266 'slug' => sanitize_title( $setting_value['name'] ), |
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267 'count' => 0, |
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268 'term_group' => 0, |
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269 'taxonomy' => self::TAXONOMY, |
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270 'filter' => 'raw', |
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271 ), $setting_value ); |
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272 |
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273 array_splice( $menus, $index, ( -1 === $index ? 0 : 1 ), array( $menu_obj ) ); |
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274 } |
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275 |
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276 // Make sure the menu objects get re-sorted after an update/insert. |
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277 if ( ! $is_delete && ! empty( $args['orderby'] ) ) { |
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278 $menus = wp_list_sort( $menus, array( |
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279 $args['orderby'] => 'ASC', |
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280 ) ); |
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281 } |
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282 // @todo add support for $args['hide_empty'] === true |
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283 |
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284 return $menus; |
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285 } |
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286 |
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287 /** |
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288 * Temporary non-closure passing of orderby value to function. |
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289 * |
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290 * @since 4.3.0 |
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291 * @var string |
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292 * |
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293 * @see WP_Customize_Nav_Menu_Setting::filter_wp_get_nav_menus() |
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294 * @see WP_Customize_Nav_Menu_Setting::_sort_menus_by_orderby() |
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295 */ |
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296 protected $_current_menus_sort_orderby; |
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297 |
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298 /** |
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299 * Sort menu objects by the class-supplied orderby property. |
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300 * |
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301 * This is a workaround for a lack of closures. |
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302 * |
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303 * @since 4.3.0 |
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304 * @deprecated 4.7.0 Use wp_list_sort() |
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305 * |
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306 * @param object $menu1 |
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307 * @param object $menu2 |
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308 * @return int |
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309 * |
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310 * @see WP_Customize_Nav_Menu_Setting::filter_wp_get_nav_menus() |
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311 */ |
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312 protected function _sort_menus_by_orderby( $menu1, $menu2 ) { |
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313 _deprecated_function( __METHOD__, '4.7.0', 'wp_list_sort' ); |
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314 |
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315 $key = $this->_current_menus_sort_orderby; |
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316 return strcmp( $menu1->$key, $menu2->$key ); |
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317 } |
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318 |
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319 /** |
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320 * Filters the wp_get_nav_menu_object() result to supply the previewed menu object. |
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321 * |
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322 * Requesting a nav_menu object by anything but ID is not supported. |
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323 * |
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324 * @since 4.3.0 |
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325 * |
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326 * @see wp_get_nav_menu_object() |
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327 * |
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328 * @param object|null $menu_obj Object returned by wp_get_nav_menu_object(). |
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329 * @param string $menu_id ID of the nav_menu term. Requests by slug or name will be ignored. |
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330 * @return object|null |
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331 */ |
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332 public function filter_wp_get_nav_menu_object( $menu_obj, $menu_id ) { |
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333 $ok = ( |
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334 get_current_blog_id() === $this->_previewed_blog_id |
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335 && |
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336 is_int( $menu_id ) |
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337 && |
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338 $menu_id === $this->term_id |
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339 ); |
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340 if ( ! $ok ) { |
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341 return $menu_obj; |
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342 } |
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343 |
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344 $setting_value = $this->value(); |
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345 |
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346 // Handle deleted menus. |
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347 if ( false === $setting_value ) { |
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348 return false; |
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349 } |
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350 |
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351 // Handle sanitization failure by preventing short-circuiting. |
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352 if ( null === $setting_value ) { |
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353 return $menu_obj; |
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354 } |
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355 |
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356 $menu_obj = (object) array_merge( array( |
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357 'term_id' => $this->term_id, |
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358 'term_taxonomy_id' => $this->term_id, |
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359 'slug' => sanitize_title( $setting_value['name'] ), |
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360 'count' => 0, |
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361 'term_group' => 0, |
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362 'taxonomy' => self::TAXONOMY, |
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363 'filter' => 'raw', |
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364 ), $setting_value ); |
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365 |
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366 return $menu_obj; |
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367 } |
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368 |
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369 /** |
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370 * Filters the nav_menu_options option to include this menu's auto_add preference. |
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371 * |
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372 * @since 4.3.0 |
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373 * |
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374 * @param array $nav_menu_options Nav menu options including auto_add. |
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375 * @return array (Kaybe) modified nav menu options. |
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376 */ |
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377 public function filter_nav_menu_options( $nav_menu_options ) { |
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378 if ( $this->_previewed_blog_id !== get_current_blog_id() ) { |
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379 return $nav_menu_options; |
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380 } |
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381 |
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382 $menu = $this->value(); |
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383 $nav_menu_options = $this->filter_nav_menu_options_value( |
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384 $nav_menu_options, |
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385 $this->term_id, |
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386 false === $menu ? false : $menu['auto_add'] |
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387 ); |
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388 |
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389 return $nav_menu_options; |
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390 } |
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391 |
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392 /** |
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393 * Sanitize an input. |
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394 * |
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395 * Note that parent::sanitize() erroneously does wp_unslash() on $value, but |
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396 * we remove that in this override. |
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397 * |
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398 * @since 4.3.0 |
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399 * |
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400 * @param array $value The value to sanitize. |
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401 * @return array|false|null Null if an input isn't valid. False if it is marked for deletion. |
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402 * Otherwise the sanitized value. |
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403 */ |
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404 public function sanitize( $value ) { |
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405 // Menu is marked for deletion. |
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406 if ( false === $value ) { |
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407 return $value; |
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408 } |
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409 |
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410 // Invalid. |
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411 if ( ! is_array( $value ) ) { |
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412 return null; |
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413 } |
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414 |
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415 $default = array( |
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416 'name' => '', |
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417 'description' => '', |
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418 'parent' => 0, |
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419 'auto_add' => false, |
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420 ); |
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421 $value = array_merge( $default, $value ); |
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422 $value = wp_array_slice_assoc( $value, array_keys( $default ) ); |
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423 |
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424 $value['name'] = trim( esc_html( $value['name'] ) ); // This sanitization code is used in wp-admin/nav-menus.php. |
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425 $value['description'] = sanitize_text_field( $value['description'] ); |
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426 $value['parent'] = max( 0, intval( $value['parent'] ) ); |
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427 $value['auto_add'] = ! empty( $value['auto_add'] ); |
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428 |
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429 if ( '' === $value['name'] ) { |
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430 $value['name'] = _x( '(unnamed)', 'Missing menu name.' ); |
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431 } |
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432 |
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433 /** This filter is documented in wp-includes/class-wp-customize-setting.php */ |
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434 return apply_filters( "customize_sanitize_{$this->id}", $value, $this ); |
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435 } |
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436 |
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437 /** |
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438 * Storage for data to be sent back to client in customize_save_response filter. |
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439 * |
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440 * See {@see 'customize_save_response'}. |
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441 * |
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442 * @since 4.3.0 |
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443 * @var array |
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444 * |
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445 * @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response() |
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446 */ |
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447 protected $_widget_nav_menu_updates = array(); |
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448 |
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449 /** |
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450 * Create/update the nav_menu term for this setting. |
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451 * |
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452 * Any created menus will have their assigned term IDs exported to the client |
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453 * via the {@see 'customize_save_response'} filter. Likewise, any errors will be exported |
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454 * to the client via the customize_save_response() filter. |
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455 * |
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456 * To delete a menu, the client can send false as the value. |
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457 * |
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458 * @since 4.3.0 |
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459 * |
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460 * @see wp_update_nav_menu_object() |
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461 * |
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462 * @param array|false $value { |
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463 * The value to update. Note that slug cannot be updated via wp_update_nav_menu_object(). |
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464 * If false, then the menu will be deleted entirely. |
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465 * |
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466 * @type string $name The name of the menu to save. |
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467 * @type string $description The term description. Default empty string. |
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468 * @type int $parent The id of the parent term. Default 0. |
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469 * @type bool $auto_add Whether pages will auto_add to this menu. Default false. |
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470 * } |
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471 * @return null|void |
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472 */ |
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473 protected function update( $value ) { |
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474 if ( $this->is_updated ) { |
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475 return; |
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476 } |
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477 |
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478 $this->is_updated = true; |
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479 $is_placeholder = ( $this->term_id < 0 ); |
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480 $is_delete = ( false === $value ); |
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481 |
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482 add_filter( 'customize_save_response', array( $this, 'amend_customize_save_response' ) ); |
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483 |
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484 $auto_add = null; |
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485 if ( $is_delete ) { |
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486 // If the current setting term is a placeholder, a delete request is a no-op. |
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487 if ( $is_placeholder ) { |
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488 $this->update_status = 'deleted'; |
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489 } else { |
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490 $r = wp_delete_nav_menu( $this->term_id ); |
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491 |
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492 if ( is_wp_error( $r ) ) { |
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493 $this->update_status = 'error'; |
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494 $this->update_error = $r; |
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495 } else { |
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496 $this->update_status = 'deleted'; |
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497 $auto_add = false; |
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498 } |
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499 } |
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500 } else { |
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501 // Insert or update menu. |
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502 $menu_data = wp_array_slice_assoc( $value, array( 'description', 'parent' ) ); |
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503 $menu_data['menu-name'] = $value['name']; |
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504 |
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505 $menu_id = $is_placeholder ? 0 : $this->term_id; |
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506 $r = wp_update_nav_menu_object( $menu_id, wp_slash( $menu_data ) ); |
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507 $original_name = $menu_data['menu-name']; |
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508 $name_conflict_suffix = 1; |
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509 while ( is_wp_error( $r ) && 'menu_exists' === $r->get_error_code() ) { |
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510 $name_conflict_suffix += 1; |
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511 /* translators: 1: original menu name, 2: duplicate count */ |
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512 $menu_data['menu-name'] = sprintf( __( '%1$s (%2$d)' ), $original_name, $name_conflict_suffix ); |
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513 $r = wp_update_nav_menu_object( $menu_id, wp_slash( $menu_data ) ); |
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514 } |
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515 |
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516 if ( is_wp_error( $r ) ) { |
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517 $this->update_status = 'error'; |
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518 $this->update_error = $r; |
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519 } else { |
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520 if ( $is_placeholder ) { |
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521 $this->previous_term_id = $this->term_id; |
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522 $this->term_id = $r; |
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523 $this->update_status = 'inserted'; |
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524 } else { |
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525 $this->update_status = 'updated'; |
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526 } |
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527 |
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528 $auto_add = $value['auto_add']; |
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529 } |
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530 } |
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531 |
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532 if ( null !== $auto_add ) { |
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533 $nav_menu_options = $this->filter_nav_menu_options_value( |
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534 (array) get_option( 'nav_menu_options', array() ), |
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535 $this->term_id, |
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536 $auto_add |
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537 ); |
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538 update_option( 'nav_menu_options', $nav_menu_options ); |
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539 } |
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540 |
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541 if ( 'inserted' === $this->update_status ) { |
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542 // Make sure that new menus assigned to nav menu locations use their new IDs. |
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543 foreach ( $this->manager->settings() as $setting ) { |
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544 if ( ! preg_match( '/^nav_menu_locations\[/', $setting->id ) ) { |
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545 continue; |
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546 } |
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547 |
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548 $post_value = $setting->post_value( null ); |
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549 if ( ! is_null( $post_value ) && $this->previous_term_id === intval( $post_value ) ) { |
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550 $this->manager->set_post_value( $setting->id, $this->term_id ); |
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551 $setting->save(); |
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552 } |
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553 } |
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554 |
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555 // Make sure that any nav_menu widgets referencing the placeholder nav menu get updated and sent back to client. |
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556 foreach ( array_keys( $this->manager->unsanitized_post_values() ) as $setting_id ) { |
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557 $nav_menu_widget_setting = $this->manager->get_setting( $setting_id ); |
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558 if ( ! $nav_menu_widget_setting || ! preg_match( '/^widget_nav_menu\[/', $nav_menu_widget_setting->id ) ) { |
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559 continue; |
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560 } |
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561 |
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562 $widget_instance = $nav_menu_widget_setting->post_value(); // Note that this calls WP_Customize_Widgets::sanitize_widget_instance(). |
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563 if ( empty( $widget_instance['nav_menu'] ) || intval( $widget_instance['nav_menu'] ) !== $this->previous_term_id ) { |
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564 continue; |
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565 } |
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566 |
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567 $widget_instance['nav_menu'] = $this->term_id; |
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568 $updated_widget_instance = $this->manager->widgets->sanitize_widget_js_instance( $widget_instance ); |
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569 $this->manager->set_post_value( $nav_menu_widget_setting->id, $updated_widget_instance ); |
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570 $nav_menu_widget_setting->save(); |
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571 |
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572 $this->_widget_nav_menu_updates[ $nav_menu_widget_setting->id ] = $updated_widget_instance; |
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573 } |
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574 } |
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575 } |
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576 |
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577 /** |
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578 * Updates a nav_menu_options array. |
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579 * |
|
580 * @since 4.3.0 |
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581 * |
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582 * @see WP_Customize_Nav_Menu_Setting::filter_nav_menu_options() |
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583 * @see WP_Customize_Nav_Menu_Setting::update() |
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584 * |
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585 * @param array $nav_menu_options Array as returned by get_option( 'nav_menu_options' ). |
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586 * @param int $menu_id The term ID for the given menu. |
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587 * @param bool $auto_add Whether to auto-add or not. |
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588 * @return array (Maybe) modified nav_menu_otions array. |
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589 */ |
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590 protected function filter_nav_menu_options_value( $nav_menu_options, $menu_id, $auto_add ) { |
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591 $nav_menu_options = (array) $nav_menu_options; |
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592 if ( ! isset( $nav_menu_options['auto_add'] ) ) { |
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593 $nav_menu_options['auto_add'] = array(); |
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594 } |
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595 |
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596 $i = array_search( $menu_id, $nav_menu_options['auto_add'] ); |
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597 if ( $auto_add && false === $i ) { |
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598 array_push( $nav_menu_options['auto_add'], $this->term_id ); |
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599 } elseif ( ! $auto_add && false !== $i ) { |
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600 array_splice( $nav_menu_options['auto_add'], $i, 1 ); |
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601 } |
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602 |
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603 return $nav_menu_options; |
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604 } |
|
605 |
|
606 /** |
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607 * Export data for the JS client. |
|
608 * |
|
609 * @since 4.3.0 |
|
610 * |
|
611 * @see WP_Customize_Nav_Menu_Setting::update() |
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612 * |
|
613 * @param array $data Additional information passed back to the 'saved' event on `wp.customize`. |
|
614 * @return array Export data. |
|
615 */ |
|
616 public function amend_customize_save_response( $data ) { |
|
617 if ( ! isset( $data['nav_menu_updates'] ) ) { |
|
618 $data['nav_menu_updates'] = array(); |
|
619 } |
|
620 if ( ! isset( $data['widget_nav_menu_updates'] ) ) { |
|
621 $data['widget_nav_menu_updates'] = array(); |
|
622 } |
|
623 |
|
624 $data['nav_menu_updates'][] = array( |
|
625 'term_id' => $this->term_id, |
|
626 'previous_term_id' => $this->previous_term_id, |
|
627 'error' => $this->update_error ? $this->update_error->get_error_code() : null, |
|
628 'status' => $this->update_status, |
|
629 'saved_value' => 'deleted' === $this->update_status ? null : $this->value(), |
|
630 ); |
|
631 |
|
632 $data['widget_nav_menu_updates'] = array_merge( |
|
633 $data['widget_nav_menu_updates'], |
|
634 $this->_widget_nav_menu_updates |
|
635 ); |
|
636 $this->_widget_nav_menu_updates = array(); |
|
637 |
|
638 return $data; |
|
639 } |
|
640 } |