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1 <?php |
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2 /** |
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3 * The custom background script. |
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4 * |
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5 * @package WordPress |
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6 * @subpackage Administration |
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7 */ |
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8 |
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9 /** |
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10 * The custom background class. |
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11 * |
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12 * @since 3.0.0 |
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13 */ |
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14 class Custom_Background { |
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15 |
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16 /** |
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17 * Callback for administration header. |
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18 * |
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19 * @var callable |
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20 * @since 3.0.0 |
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21 */ |
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22 public $admin_header_callback; |
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23 |
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24 /** |
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25 * Callback for header div. |
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26 * |
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27 * @var callable |
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28 * @since 3.0.0 |
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29 */ |
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30 public $admin_image_div_callback; |
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31 |
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32 /** |
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33 * Used to trigger a success message when settings updated and set to true. |
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34 * |
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35 * @since 3.0.0 |
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36 * @var bool |
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37 */ |
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38 private $updated; |
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39 |
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40 /** |
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41 * Constructor - Register administration header callback. |
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42 * |
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43 * @since 3.0.0 |
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44 * @param callable $admin_header_callback |
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45 * @param callable $admin_image_div_callback Optional custom image div output callback. |
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46 */ |
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47 public function __construct( $admin_header_callback = '', $admin_image_div_callback = '' ) { |
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48 $this->admin_header_callback = $admin_header_callback; |
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49 $this->admin_image_div_callback = $admin_image_div_callback; |
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50 |
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51 add_action( 'admin_menu', array( $this, 'init' ) ); |
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52 |
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53 add_action( 'wp_ajax_custom-background-add', array( $this, 'ajax_background_add' ) ); |
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54 |
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55 // Unused since 3.5.0. |
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56 add_action( 'wp_ajax_set-background-image', array( $this, 'wp_set_background_image' ) ); |
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57 } |
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58 |
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59 /** |
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60 * Set up the hooks for the Custom Background admin page. |
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61 * |
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62 * @since 3.0.0 |
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63 */ |
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64 public function init() { |
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65 $page = add_theme_page( __( 'Background' ), __( 'Background' ), 'edit_theme_options', 'custom-background', array( $this, 'admin_page' ) ); |
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66 if ( ! $page ) { |
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67 return; |
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68 } |
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69 |
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70 add_action( "load-{$page}", array( $this, 'admin_load' ) ); |
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71 add_action( "load-{$page}", array( $this, 'take_action' ), 49 ); |
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72 add_action( "load-{$page}", array( $this, 'handle_upload' ), 49 ); |
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73 |
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74 if ( $this->admin_header_callback ) { |
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75 add_action( "admin_head-{$page}", $this->admin_header_callback, 51 ); |
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76 } |
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77 } |
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78 |
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79 /** |
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80 * Set up the enqueue for the CSS & JavaScript files. |
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81 * |
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82 * @since 3.0.0 |
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83 */ |
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84 public function admin_load() { |
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85 get_current_screen()->add_help_tab( |
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86 array( |
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87 'id' => 'overview', |
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88 'title' => __( 'Overview' ), |
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89 'content' => |
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90 '<p>' . __( 'You can customize the look of your site without touching any of your theme’s code by using a custom background. Your background can be an image or a color.' ) . '</p>' . |
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91 '<p>' . __( 'To use a background image, simply upload it or choose an image that has already been uploaded to your Media Library by clicking the “Choose Image” button. You can display a single instance of your image, or tile it to fill the screen. You can have your background fixed in place, so your site content moves on top of it, or you can have it scroll with your site.' ) . '</p>' . |
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92 '<p>' . __( 'You can also choose a background color by clicking the Select Color button and either typing in a legitimate HTML hex value, e.g. “#ff0000” for red, or by choosing a color using the color picker.' ) . '</p>' . |
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93 '<p>' . __( 'Don’t forget to click on the Save Changes button when you are finished.' ) . '</p>', |
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94 ) |
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95 ); |
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96 |
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97 get_current_screen()->set_help_sidebar( |
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98 '<p><strong>' . __( 'For more information:' ) . '</strong></p>' . |
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99 '<p>' . __( '<a href="https://codex.wordpress.org/Appearance_Background_Screen">Documentation on Custom Background</a>' ) . '</p>' . |
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100 '<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>' |
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101 ); |
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102 |
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103 wp_enqueue_media(); |
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104 wp_enqueue_script( 'custom-background' ); |
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105 wp_enqueue_style( 'wp-color-picker' ); |
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106 } |
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107 |
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108 /** |
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109 * Execute custom background modification. |
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110 * |
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111 * @since 3.0.0 |
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112 */ |
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113 public function take_action() { |
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114 if ( empty( $_POST ) ) { |
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115 return; |
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116 } |
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117 |
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118 if ( isset( $_POST['reset-background'] ) ) { |
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119 check_admin_referer( 'custom-background-reset', '_wpnonce-custom-background-reset' ); |
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120 remove_theme_mod( 'background_image' ); |
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121 remove_theme_mod( 'background_image_thumb' ); |
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122 $this->updated = true; |
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123 return; |
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124 } |
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125 |
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126 if ( isset( $_POST['remove-background'] ) ) { |
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127 // @todo Uploaded files are not removed here. |
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128 check_admin_referer( 'custom-background-remove', '_wpnonce-custom-background-remove' ); |
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129 set_theme_mod( 'background_image', '' ); |
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130 set_theme_mod( 'background_image_thumb', '' ); |
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131 $this->updated = true; |
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132 wp_safe_redirect( $_POST['_wp_http_referer'] ); |
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133 return; |
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134 } |
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135 |
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136 if ( isset( $_POST['background-preset'] ) ) { |
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137 check_admin_referer( 'custom-background' ); |
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138 |
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139 if ( in_array( $_POST['background-preset'], array( 'default', 'fill', 'fit', 'repeat', 'custom' ), true ) ) { |
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140 $preset = $_POST['background-preset']; |
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141 } else { |
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142 $preset = 'default'; |
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143 } |
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144 |
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145 set_theme_mod( 'background_preset', $preset ); |
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146 } |
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147 |
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148 if ( isset( $_POST['background-position'] ) ) { |
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149 check_admin_referer( 'custom-background' ); |
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150 |
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151 $position = explode( ' ', $_POST['background-position'] ); |
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152 |
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153 if ( in_array( $position[0], array( 'left', 'center', 'right' ), true ) ) { |
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154 $position_x = $position[0]; |
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155 } else { |
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156 $position_x = 'left'; |
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157 } |
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158 |
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159 if ( in_array( $position[1], array( 'top', 'center', 'bottom' ), true ) ) { |
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160 $position_y = $position[1]; |
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161 } else { |
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162 $position_y = 'top'; |
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163 } |
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164 |
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165 set_theme_mod( 'background_position_x', $position_x ); |
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166 set_theme_mod( 'background_position_y', $position_y ); |
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167 } |
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168 |
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169 if ( isset( $_POST['background-size'] ) ) { |
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170 check_admin_referer( 'custom-background' ); |
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171 |
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172 if ( in_array( $_POST['background-size'], array( 'auto', 'contain', 'cover' ), true ) ) { |
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173 $size = $_POST['background-size']; |
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174 } else { |
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175 $size = 'auto'; |
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176 } |
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177 |
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178 set_theme_mod( 'background_size', $size ); |
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179 } |
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180 |
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181 if ( isset( $_POST['background-repeat'] ) ) { |
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182 check_admin_referer( 'custom-background' ); |
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183 |
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184 $repeat = $_POST['background-repeat']; |
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185 |
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186 if ( 'no-repeat' !== $repeat ) { |
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187 $repeat = 'repeat'; |
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188 } |
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189 |
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190 set_theme_mod( 'background_repeat', $repeat ); |
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191 } |
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192 |
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193 if ( isset( $_POST['background-attachment'] ) ) { |
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194 check_admin_referer( 'custom-background' ); |
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195 |
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196 $attachment = $_POST['background-attachment']; |
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197 |
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198 if ( 'fixed' !== $attachment ) { |
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199 $attachment = 'scroll'; |
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200 } |
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201 |
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202 set_theme_mod( 'background_attachment', $attachment ); |
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203 } |
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204 |
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205 if ( isset( $_POST['background-color'] ) ) { |
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206 check_admin_referer( 'custom-background' ); |
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207 $color = preg_replace( '/[^0-9a-fA-F]/', '', $_POST['background-color'] ); |
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208 if ( strlen( $color ) == 6 || strlen( $color ) == 3 ) { |
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209 set_theme_mod( 'background_color', $color ); |
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210 } else { |
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211 set_theme_mod( 'background_color', '' ); |
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212 } |
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213 } |
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214 |
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215 $this->updated = true; |
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216 } |
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217 |
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218 /** |
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219 * Display the custom background page. |
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220 * |
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221 * @since 3.0.0 |
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222 */ |
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223 public function admin_page() { |
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224 ?> |
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225 <div class="wrap" id="custom-background"> |
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226 <h1><?php _e( 'Custom Background' ); ?></h1> |
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227 |
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228 <?php if ( current_user_can( 'customize' ) ) { ?> |
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229 <div class="notice notice-info hide-if-no-customize"> |
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230 <p> |
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231 <?php |
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232 printf( |
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233 /* translators: %s: URL to background image configuration in Customizer. */ |
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234 __( 'You can now manage and live-preview Custom Backgrounds in the <a href="%s">Customizer</a>.' ), |
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235 admin_url( 'customize.php?autofocus[control]=background_image' ) |
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236 ); |
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237 ?> |
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238 </p> |
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239 </div> |
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240 <?php } ?> |
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241 |
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242 <?php if ( ! empty( $this->updated ) ) { ?> |
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243 <div id="message" class="updated"> |
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244 <p> |
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245 <?php |
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246 /* translators: %s: Home URL. */ |
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247 printf( __( 'Background updated. <a href="%s">Visit your site</a> to see how it looks.' ), home_url( '/' ) ); |
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248 ?> |
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249 </p> |
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250 </div> |
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251 <?php } ?> |
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252 |
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253 <h2><?php _e( 'Background Image' ); ?></h2> |
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254 |
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255 <table class="form-table" role="presentation"> |
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256 <tbody> |
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257 <tr> |
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258 <th scope="row"><?php _e( 'Preview' ); ?></th> |
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259 <td> |
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260 <?php |
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261 if ( $this->admin_image_div_callback ) { |
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262 call_user_func( $this->admin_image_div_callback ); |
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263 } else { |
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264 $background_styles = ''; |
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265 $bgcolor = get_background_color(); |
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266 if ( $bgcolor ) { |
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267 $background_styles .= 'background-color: #' . $bgcolor . ';'; |
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268 } |
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269 |
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270 $background_image_thumb = get_background_image(); |
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271 if ( $background_image_thumb ) { |
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272 $background_image_thumb = esc_url( set_url_scheme( get_theme_mod( 'background_image_thumb', str_replace( '%', '%%', $background_image_thumb ) ) ) ); |
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273 $background_position_x = get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) ); |
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274 $background_position_y = get_theme_mod( 'background_position_y', get_theme_support( 'custom-background', 'default-position-y' ) ); |
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275 $background_size = get_theme_mod( 'background_size', get_theme_support( 'custom-background', 'default-size' ) ); |
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276 $background_repeat = get_theme_mod( 'background_repeat', get_theme_support( 'custom-background', 'default-repeat' ) ); |
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277 $background_attachment = get_theme_mod( 'background_attachment', get_theme_support( 'custom-background', 'default-attachment' ) ); |
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278 |
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279 // Background-image URL must be single quote, see below. |
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280 $background_styles .= " background-image: url('$background_image_thumb');" |
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281 . " background-size: $background_size;" |
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282 . " background-position: $background_position_x $background_position_y;" |
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283 . " background-repeat: $background_repeat;" |
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284 . " background-attachment: $background_attachment;"; |
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285 } |
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286 ?> |
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287 <div id="custom-background-image" style="<?php echo $background_styles; ?>"><?php // Must be double quote, see above. ?> |
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288 <?php if ( $background_image_thumb ) { ?> |
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289 <img class="custom-background-image" src="<?php echo $background_image_thumb; ?>" style="visibility:hidden;" alt="" /><br /> |
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290 <img class="custom-background-image" src="<?php echo $background_image_thumb; ?>" style="visibility:hidden;" alt="" /> |
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291 <?php } ?> |
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292 </div> |
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293 <?php } ?> |
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294 </td> |
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295 </tr> |
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296 |
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297 <?php if ( get_background_image() ) : ?> |
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298 <tr> |
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299 <th scope="row"><?php _e( 'Remove Image' ); ?></th> |
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300 <td> |
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301 <form method="post"> |
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302 <?php wp_nonce_field( 'custom-background-remove', '_wpnonce-custom-background-remove' ); ?> |
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303 <?php submit_button( __( 'Remove Background Image' ), '', 'remove-background', false ); ?><br/> |
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304 <?php _e( 'This will remove the background image. You will not be able to restore any customizations.' ); ?> |
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305 </form> |
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306 </td> |
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307 </tr> |
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308 <?php endif; ?> |
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309 |
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310 <?php $default_image = get_theme_support( 'custom-background', 'default-image' ); ?> |
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311 <?php if ( $default_image && get_background_image() != $default_image ) : ?> |
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312 <tr> |
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313 <th scope="row"><?php _e( 'Restore Original Image' ); ?></th> |
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314 <td> |
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315 <form method="post"> |
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316 <?php wp_nonce_field( 'custom-background-reset', '_wpnonce-custom-background-reset' ); ?> |
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317 <?php submit_button( __( 'Restore Original Image' ), '', 'reset-background', false ); ?><br/> |
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318 <?php _e( 'This will restore the original background image. You will not be able to restore any customizations.' ); ?> |
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319 </form> |
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320 </td> |
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321 </tr> |
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322 <?php endif; ?> |
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323 |
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324 <?php if ( current_user_can( 'upload_files' ) ) : ?> |
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325 <tr> |
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326 <th scope="row"><?php _e( 'Select Image' ); ?></th> |
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327 <td><form enctype="multipart/form-data" id="upload-form" class="wp-upload-form" method="post"> |
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328 <p> |
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329 <label for="upload"><?php _e( 'Choose an image from your computer:' ); ?></label><br /> |
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330 <input type="file" id="upload" name="import" /> |
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331 <input type="hidden" name="action" value="save" /> |
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332 <?php wp_nonce_field( 'custom-background-upload', '_wpnonce-custom-background-upload' ); ?> |
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333 <?php submit_button( __( 'Upload' ), '', 'submit', false ); ?> |
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334 </p> |
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335 <p> |
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336 <label for="choose-from-library-link"><?php _e( 'Or choose an image from your media library:' ); ?></label><br /> |
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337 <button id="choose-from-library-link" class="button" |
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338 data-choose="<?php esc_attr_e( 'Choose a Background Image' ); ?>" |
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339 data-update="<?php esc_attr_e( 'Set as background' ); ?>"><?php _e( 'Choose Image' ); ?></button> |
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340 </p> |
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341 </form> |
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342 </td> |
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343 </tr> |
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344 <?php endif; ?> |
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345 </tbody> |
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346 </table> |
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347 |
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348 <h2><?php _e( 'Display Options' ); ?></h2> |
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349 <form method="post"> |
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350 <table class="form-table" role="presentation"> |
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351 <tbody> |
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352 <?php if ( get_background_image() ) : ?> |
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353 <input name="background-preset" type="hidden" value="custom"> |
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354 |
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355 <?php |
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356 $background_position = sprintf( |
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357 '%s %s', |
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358 get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) ), |
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359 get_theme_mod( 'background_position_y', get_theme_support( 'custom-background', 'default-position-y' ) ) |
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360 ); |
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361 |
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362 $background_position_options = array( |
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363 array( |
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364 'left top' => array( |
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365 'label' => __( 'Top Left' ), |
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366 'icon' => 'dashicons dashicons-arrow-left-alt', |
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367 ), |
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368 'center top' => array( |
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369 'label' => __( 'Top' ), |
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370 'icon' => 'dashicons dashicons-arrow-up-alt', |
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371 ), |
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372 'right top' => array( |
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373 'label' => __( 'Top Right' ), |
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374 'icon' => 'dashicons dashicons-arrow-right-alt', |
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375 ), |
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376 ), |
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377 array( |
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378 'left center' => array( |
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379 'label' => __( 'Left' ), |
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380 'icon' => 'dashicons dashicons-arrow-left-alt', |
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381 ), |
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382 'center center' => array( |
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383 'label' => __( 'Center' ), |
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384 'icon' => 'background-position-center-icon', |
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385 ), |
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386 'right center' => array( |
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387 'label' => __( 'Right' ), |
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388 'icon' => 'dashicons dashicons-arrow-right-alt', |
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389 ), |
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390 ), |
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391 array( |
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392 'left bottom' => array( |
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393 'label' => __( 'Bottom Left' ), |
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394 'icon' => 'dashicons dashicons-arrow-left-alt', |
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395 ), |
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396 'center bottom' => array( |
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397 'label' => __( 'Bottom' ), |
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398 'icon' => 'dashicons dashicons-arrow-down-alt', |
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399 ), |
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400 'right bottom' => array( |
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401 'label' => __( 'Bottom Right' ), |
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402 'icon' => 'dashicons dashicons-arrow-right-alt', |
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403 ), |
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404 ), |
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405 ); |
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406 ?> |
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407 <tr> |
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408 <th scope="row"><?php _e( 'Image Position' ); ?></th> |
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409 <td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Image Position' ); ?></span></legend> |
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410 <div class="background-position-control"> |
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411 <?php foreach ( $background_position_options as $group ) : ?> |
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412 <div class="button-group"> |
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413 <?php foreach ( $group as $value => $input ) : ?> |
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414 <label> |
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415 <input class="screen-reader-text" name="background-position" type="radio" value="<?php echo esc_attr( $value ); ?>"<?php checked( $value, $background_position ); ?>> |
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416 <span class="button display-options position"><span class="<?php echo esc_attr( $input['icon'] ); ?>" aria-hidden="true"></span></span> |
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417 <span class="screen-reader-text"><?php echo $input['label']; ?></span> |
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418 </label> |
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419 <?php endforeach; ?> |
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420 </div> |
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421 <?php endforeach; ?> |
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422 </div> |
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423 </fieldset></td> |
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424 </tr> |
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425 |
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426 <tr> |
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427 <th scope="row"><label for="background-size"><?php _e( 'Image Size' ); ?></label></th> |
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428 <td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Image Size' ); ?></span></legend> |
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429 <select id="background-size" name="background-size"> |
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430 <option value="auto"<?php selected( 'auto', get_theme_mod( 'background_size', get_theme_support( 'custom-background', 'default-size' ) ) ); ?>><?php _ex( 'Original', 'Original Size' ); ?></option> |
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431 <option value="contain"<?php selected( 'contain', get_theme_mod( 'background_size', get_theme_support( 'custom-background', 'default-size' ) ) ); ?>><?php _e( 'Fit to Screen' ); ?></option> |
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432 <option value="cover"<?php selected( 'cover', get_theme_mod( 'background_size', get_theme_support( 'custom-background', 'default-size' ) ) ); ?>><?php _e( 'Fill Screen' ); ?></option> |
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433 </select> |
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434 </fieldset></td> |
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435 </tr> |
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436 |
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437 <tr> |
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438 <th scope="row"><?php _ex( 'Repeat', 'Background Repeat' ); ?></th> |
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439 <td><fieldset><legend class="screen-reader-text"><span><?php _ex( 'Repeat', 'Background Repeat' ); ?></span></legend> |
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440 <input name="background-repeat" type="hidden" value="no-repeat"> |
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441 <label><input type="checkbox" name="background-repeat" value="repeat"<?php checked( 'repeat', get_theme_mod( 'background_repeat', get_theme_support( 'custom-background', 'default-repeat' ) ) ); ?>> <?php _e( 'Repeat Background Image' ); ?></label> |
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442 </fieldset></td> |
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443 </tr> |
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444 |
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445 <tr> |
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446 <th scope="row"><?php _ex( 'Scroll', 'Background Scroll' ); ?></th> |
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447 <td><fieldset><legend class="screen-reader-text"><span><?php _ex( 'Scroll', 'Background Scroll' ); ?></span></legend> |
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448 <input name="background-attachment" type="hidden" value="fixed"> |
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449 <label><input name="background-attachment" type="checkbox" value="scroll" <?php checked( 'scroll', get_theme_mod( 'background_attachment', get_theme_support( 'custom-background', 'default-attachment' ) ) ); ?>> <?php _e( 'Scroll with Page' ); ?></label> |
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450 </fieldset></td> |
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451 </tr> |
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452 <?php endif; // get_background_image() ?> |
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453 <tr> |
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454 <th scope="row"><?php _e( 'Background Color' ); ?></th> |
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455 <td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Background Color' ); ?></span></legend> |
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456 <?php |
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457 $default_color = ''; |
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458 if ( current_theme_supports( 'custom-background', 'default-color' ) ) { |
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459 $default_color = ' data-default-color="#' . esc_attr( get_theme_support( 'custom-background', 'default-color' ) ) . '"'; |
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460 } |
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461 ?> |
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462 <input type="text" name="background-color" id="background-color" value="#<?php echo esc_attr( get_background_color() ); ?>"<?php echo $default_color; ?>> |
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463 </fieldset></td> |
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464 </tr> |
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465 </tbody> |
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466 </table> |
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467 |
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468 <?php wp_nonce_field( 'custom-background' ); ?> |
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469 <?php submit_button( null, 'primary', 'save-background-options' ); ?> |
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470 </form> |
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471 |
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472 </div> |
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473 <?php |
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474 } |
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475 |
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476 /** |
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477 * Handle an Image upload for the background image. |
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478 * |
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479 * @since 3.0.0 |
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480 */ |
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481 public function handle_upload() { |
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482 if ( empty( $_FILES ) ) { |
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483 return; |
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484 } |
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485 |
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486 check_admin_referer( 'custom-background-upload', '_wpnonce-custom-background-upload' ); |
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487 $overrides = array( 'test_form' => false ); |
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488 |
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489 $uploaded_file = $_FILES['import']; |
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490 $wp_filetype = wp_check_filetype_and_ext( $uploaded_file['tmp_name'], $uploaded_file['name'] ); |
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491 if ( ! wp_match_mime_types( 'image', $wp_filetype['type'] ) ) { |
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492 wp_die( __( 'The uploaded file is not a valid image. Please try again.' ) ); |
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493 } |
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494 |
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495 $file = wp_handle_upload( $uploaded_file, $overrides ); |
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496 |
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497 if ( isset( $file['error'] ) ) { |
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498 wp_die( $file['error'] ); |
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499 } |
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500 |
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501 $url = $file['url']; |
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502 $type = $file['type']; |
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503 $file = $file['file']; |
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504 $filename = wp_basename( $file ); |
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505 |
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506 // Construct the object array. |
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507 $object = array( |
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508 'post_title' => $filename, |
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509 'post_content' => $url, |
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510 'post_mime_type' => $type, |
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511 'guid' => $url, |
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512 'context' => 'custom-background', |
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513 ); |
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514 |
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515 // Save the data. |
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516 $id = wp_insert_attachment( $object, $file ); |
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517 |
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518 // Add the metadata. |
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519 wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) ); |
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520 update_post_meta( $id, '_wp_attachment_is_custom_background', get_option( 'stylesheet' ) ); |
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521 |
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522 set_theme_mod( 'background_image', esc_url_raw( $url ) ); |
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523 |
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524 $thumbnail = wp_get_attachment_image_src( $id, 'thumbnail' ); |
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525 set_theme_mod( 'background_image_thumb', esc_url_raw( $thumbnail[0] ) ); |
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526 |
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527 /** This action is documented in wp-admin/includes/class-custom-image-header.php */ |
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528 do_action( 'wp_create_file_in_uploads', $file, $id ); // For replication. |
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529 $this->updated = true; |
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530 } |
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531 |
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532 /** |
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533 * Ajax handler for adding custom background context to an attachment. |
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534 * |
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535 * Triggers when the user adds a new background image from the |
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536 * Media Manager. |
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537 * |
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538 * @since 4.1.0 |
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539 */ |
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540 public function ajax_background_add() { |
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541 check_ajax_referer( 'background-add', 'nonce' ); |
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542 |
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543 if ( ! current_user_can( 'edit_theme_options' ) ) { |
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544 wp_send_json_error(); |
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545 } |
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546 |
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547 $attachment_id = absint( $_POST['attachment_id'] ); |
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548 if ( $attachment_id < 1 ) { |
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549 wp_send_json_error(); |
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550 } |
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551 |
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552 update_post_meta( $attachment_id, '_wp_attachment_is_custom_background', get_stylesheet() ); |
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553 |
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554 wp_send_json_success(); |
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555 } |
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556 |
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557 /** |
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558 * @since 3.4.0 |
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559 * @deprecated 3.5.0 |
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560 * |
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561 * @param array $form_fields |
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562 * @return array $form_fields |
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563 */ |
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564 public function attachment_fields_to_edit( $form_fields ) { |
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565 return $form_fields; |
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566 } |
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567 |
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568 /** |
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569 * @since 3.4.0 |
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570 * @deprecated 3.5.0 |
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571 * |
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572 * @param array $tabs |
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573 * @return array $tabs |
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574 */ |
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575 public function filter_upload_tabs( $tabs ) { |
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576 return $tabs; |
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577 } |
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578 |
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579 /** |
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580 * @since 3.4.0 |
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581 * @deprecated 3.5.0 |
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582 */ |
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583 public function wp_set_background_image() { |
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584 if ( ! current_user_can( 'edit_theme_options' ) || ! isset( $_POST['attachment_id'] ) ) { |
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585 exit; |
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586 } |
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587 |
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588 $attachment_id = absint( $_POST['attachment_id'] ); |
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589 |
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590 $sizes = array_keys( |
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591 /** This filter is documented in wp-admin/includes/media.php */ |
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592 apply_filters( |
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593 'image_size_names_choose', |
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594 array( |
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595 'thumbnail' => __( 'Thumbnail' ), |
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596 'medium' => __( 'Medium' ), |
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597 'large' => __( 'Large' ), |
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598 'full' => __( 'Full Size' ), |
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599 ) |
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600 ) |
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601 ); |
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602 |
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603 $size = 'thumbnail'; |
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604 if ( in_array( $_POST['size'], $sizes, true ) ) { |
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605 $size = esc_attr( $_POST['size'] ); |
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606 } |
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607 |
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608 update_post_meta( $attachment_id, '_wp_attachment_is_custom_background', get_option( 'stylesheet' ) ); |
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609 |
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610 $url = wp_get_attachment_image_src( $attachment_id, $size ); |
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611 $thumbnail = wp_get_attachment_image_src( $attachment_id, 'thumbnail' ); |
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612 set_theme_mod( 'background_image', esc_url_raw( $url[0] ) ); |
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613 set_theme_mod( 'background_image_thumb', esc_url_raw( $thumbnail[0] ) ); |
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614 exit; |
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615 } |
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616 } |