1 | <?php |
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2 | /** |
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3 | * Processes typography-related fields |
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4 | * and generates the google-font link. |
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5 | * |
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6 | * @package Kirki |
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7 | * @category Core |
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8 | * @author Aristeides Stathopoulos |
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9 | * @copyright Copyright (c) 2017, Aristeides Stathopoulos |
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10 | * @license http://opensource.org/licenses/https://opensource.org/licenses/MIT |
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11 | * @since 1.0 |
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12 | */ |
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13 | |||
14 | /** |
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15 | * Manages the way Google Fonts are enqueued. |
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16 | */ |
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17 | final class Kirki_Fonts_Google { |
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18 | |||
19 | /** |
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20 | * The Kirki_Fonts_Google instance. |
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21 | * We use the singleton pattern here to avoid loading the google-font array multiple times. |
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22 | * This is mostly a performance tweak. |
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23 | * |
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24 | * @access private |
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25 | * @var null|object |
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26 | */ |
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27 | private static $instance = null; |
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28 | |||
29 | /** |
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30 | * DUMMY. DOESN'T DO ANYTHING, SIMPLY BACKWARDS-COMPATIBILITY. |
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31 | * |
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32 | * @static |
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33 | * @access public |
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34 | * @var bool |
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35 | */ |
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36 | public static $force_load_all_subsets = false; |
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37 | |||
38 | /** |
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39 | * If set to true, forces loading ALL variants. |
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40 | * |
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41 | * @static |
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42 | * @access public |
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43 | * @var bool |
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44 | */ |
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45 | public static $force_load_all_variants = false; |
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46 | |||
47 | /** |
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48 | * The array of fonts |
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49 | * |
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50 | * @access public |
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51 | * @var array |
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52 | */ |
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53 | public $fonts = array(); |
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54 | |||
55 | /** |
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56 | * An array of all google fonts. |
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57 | * |
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58 | * @access private |
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59 | * @var array |
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60 | */ |
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61 | private $google_fonts = array(); |
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62 | |||
63 | /** |
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64 | * The class constructor. |
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65 | */ |
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66 | private function __construct() { |
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67 | |||
68 | $config = apply_filters( 'kirki_config', array() ); |
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69 | |||
70 | // If we have set $config['disable_google_fonts'] to true then do not proceed any further. |
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71 | if ( isset( $config['disable_google_fonts'] ) && true === $config['disable_google_fonts'] ) { |
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72 | return; |
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73 | } |
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74 | |||
75 | add_action( 'wp_ajax_kirki_fonts_google_all_get', array( $this, 'get_googlefonts_json' ) ); |
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76 | add_action( 'wp_ajax_nopriv_kirki_fonts_google_all_get', array( $this, 'get_googlefonts_json' ) ); |
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77 | add_action( 'wp_ajax_kirki_fonts_standard_all_get', array( $this, 'get_standardfonts_json' ) ); |
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78 | add_action( 'wp_ajax_nopriv_kirki_fonts_standard_all_get', array( $this, 'get_standardfonts_json' ) ); |
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79 | |||
80 | // Populate the array of google fonts. |
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81 | $this->google_fonts = Kirki_Fonts::get_google_fonts(); |
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82 | } |
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83 | |||
84 | /** |
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85 | * Get the one, true instance of this class. |
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86 | * Prevents performance issues since this is only loaded once. |
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87 | * |
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88 | * @return object Kirki_Fonts_Google |
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89 | */ |
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90 | public static function get_instance() { |
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91 | if ( null === self::$instance ) { |
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92 | self::$instance = new Kirki_Fonts_Google(); |
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93 | } |
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94 | return self::$instance; |
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95 | } |
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96 | |||
97 | /** |
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98 | * Processes the arguments of a field |
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99 | * determines if it's a typography field |
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100 | * and if it is, then takes appropriate actions. |
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101 | * |
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102 | * @param array $args The field arguments. |
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103 | */ |
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104 | public function generate_google_font( $args ) { |
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105 | |||
106 | // Process typography fields. |
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107 | if ( isset( $args['type'] ) && 'kirki-typography' === $args['type'] ) { |
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108 | |||
109 | // Get the value. |
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110 | $value = Kirki_Values::get_sanitized_field_value( $args ); |
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111 | |||
112 | // If we don't have a font-family then we can skip this. |
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113 | if ( ! isset( $value['font-family'] ) ) { |
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114 | return; |
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115 | } |
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116 | |||
117 | // If not a google-font, then we can skip this. |
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118 | if ( ! Kirki_Fonts::is_google_font( $value['font-family'] ) ) { |
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119 | return; |
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120 | } |
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121 | |||
122 | // Set a default value for variants. |
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123 | if ( ! isset( $value['variant'] ) ) { |
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124 | $value['variant'] = 'regular'; |
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125 | } |
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126 | |||
127 | // Add the requested google-font. |
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128 | if ( ! isset( $this->fonts[ $value['font-family'] ] ) ) { |
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129 | $this->fonts[ $value['font-family'] ] = array(); |
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130 | } |
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131 | if ( ! in_array( $value['variant'], $this->fonts[ $value['font-family'] ], true ) ) { |
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132 | $this->fonts[ $value['font-family'] ][] = $value['variant']; |
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133 | } |
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134 | // Are we force-loading all variants? |
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135 | if ( true === self::$force_load_all_variants ) { |
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136 | $all_variants = Kirki_Fonts::get_all_variants(); |
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137 | $args['choices']['variant'] = array_keys( $all_variants ); |
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138 | } |
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139 | |||
140 | if ( ! empty( $args['choices']['variant'] ) && is_array( $args['choices']['variant'] ) ) { |
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141 | foreach ( $args['choices']['variant'] as $extra_variant ) { |
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142 | $this->fonts[ $value['font-family'] ][] = $extra_variant; |
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143 | } |
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144 | } |
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145 | return; |
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146 | } |
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147 | |||
148 | // Process non-typography fields. |
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149 | if ( isset( $args['output'] ) && is_array( $args['output'] ) ) { |
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150 | foreach ( $args['output'] as $output ) { |
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151 | |||
152 | // If we don't have a typography-related output argument we can skip this. |
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153 | if ( ! isset( $output['property'] ) || ! in_array( $output['property'], array( 'font-family', 'font-weight' ), true ) ) { |
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154 | continue; |
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155 | } |
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156 | |||
157 | // Get the value. |
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158 | $value = Kirki_Values::get_sanitized_field_value( $args ); |
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159 | |||
160 | if ( is_string( $value ) ) { |
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161 | if ( 'font-family' === $output['property'] ) { |
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162 | if ( ! array_key_exists( $value, $this->fonts ) ) { |
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163 | $this->fonts[ $value ] = array(); |
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164 | } |
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165 | } elseif ( 'font-weight' === $output['property'] ) { |
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166 | foreach ( $this->fonts as $font => $variants ) { |
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167 | if ( ! in_array( $value, $variants, true ) ) { |
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168 | $this->fonts[ $font ][] = $value; |
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169 | } |
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170 | } |
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171 | } |
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172 | } |
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173 | } // End foreach(). |
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174 | } // End if(). |
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175 | } |
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176 | |||
177 | /** |
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178 | * Determines the vbalidity of the selected font as well as its properties. |
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179 | * This is vital to make sure that the google-font script that we'll generate later |
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180 | * does not contain any invalid options. |
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181 | */ |
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182 | public function process_fonts() { |
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183 | |||
184 | // Early exit if font-family is empty. |
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185 | if ( empty( $this->fonts ) ) { |
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186 | return; |
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187 | } |
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188 | |||
189 | foreach ( $this->fonts as $font => $variants ) { |
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190 | |||
191 | // Determine if this is indeed a google font or not. |
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192 | // If it's not, then just remove it from the array. |
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193 | if ( ! array_key_exists( $font, $this->google_fonts ) ) { |
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194 | unset( $this->fonts[ $font ] ); |
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195 | continue; |
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196 | } |
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197 | |||
198 | // Get all valid font variants for this font. |
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199 | $font_variants = array(); |
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200 | if ( isset( $this->google_fonts[ $font ]['variants'] ) ) { |
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201 | $font_variants = $this->google_fonts[ $font ]['variants']; |
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202 | } |
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203 | foreach ( $variants as $variant ) { |
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204 | |||
205 | // If this is not a valid variant for this font-family |
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206 | // then unset it and move on to the next one. |
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207 | if ( ! in_array( $variant, $font_variants, true ) ) { |
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208 | $variant_key = array_search( $variant, $this->fonts[ $font ], true ); |
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209 | unset( $this->fonts[ $font ][ $variant_key ] ); |
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210 | continue; |
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211 | } |
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212 | } |
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213 | } |
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214 | } |
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215 | |||
216 | /** |
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217 | * Gets the googlefonts JSON file. |
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218 | * |
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219 | * @since 3.0.17 |
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220 | * @return void |
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221 | */ |
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222 | public function get_googlefonts_json() { |
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223 | include wp_normalize_path( dirname( __FILE__ ) . '/webfonts.json' ); |
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224 | wp_die(); |
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225 | } |
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226 | |||
227 | /** |
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228 | * Get the standard fonts JSON. |
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229 | * |
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230 | * @since 3.0.17 |
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231 | * @return void |
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232 | */ |
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233 | public function get_standardfonts_json() { |
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234 | echo wp_json_encode( Kirki_Fonts::get_standard_fonts() ); // WPCS: XSS ok. |
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235 | wp_die(); |
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236 | } |
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237 | } |
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238 |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..