wp/wp-admin/custom-header.php
changeset 16 a86126ab1dd4
parent 9 177826044cd9
child 22 8c2e4d02f4ef
equal deleted inserted replaced
15:3d4e9c994f10 16:a86126ab1dd4
     1 <?php
     1 <?php
     2 /**
     2 /**
     3  * The custom header image script.
     3  * Custom header image script.
     4  *
     4  *
       
     5  * This file is deprecated, use 'wp-admin/includes/class-custom-image-header.php' instead.
       
     6  *
       
     7  * @deprecated 5.3.0
     5  * @package WordPress
     8  * @package WordPress
     6  * @subpackage Administration
     9  * @subpackage Administration
     7  */
    10  */
     8 
    11 
     9 /**
    12 _deprecated_file( basename( __FILE__ ), '5.3.0', 'wp-admin/includes/class-custom-image-header.php' );
    10  * The custom header image class.
       
    11  *
       
    12  * @since 2.1.0
       
    13  */
       
    14 class Custom_Image_Header {
       
    15 
    13 
    16 	/**
    14 /** Custom_Image_Header class */
    17 	 * Callback for administration header.
    15 require_once ABSPATH . 'wp-admin/includes/class-custom-image-header.php';
    18 	 *
       
    19 	 * @var callable
       
    20 	 * @since 2.1.0
       
    21 	 */
       
    22 	public $admin_header_callback;
       
    23 
       
    24 	/**
       
    25 	 * Callback for header div.
       
    26 	 *
       
    27 	 * @var callable
       
    28 	 * @since 3.0.0
       
    29 	 */
       
    30 	public $admin_image_div_callback;
       
    31 
       
    32 	/**
       
    33 	 * Holds default headers.
       
    34 	 *
       
    35 	 * @var array
       
    36 	 * @since 3.0.0
       
    37 	 */
       
    38 	public $default_headers = array();
       
    39 
       
    40 	/**
       
    41 	 * Used to trigger a success message when settings updated and set to true.
       
    42 	 *
       
    43 	 * @since 3.0.0
       
    44 	 * @var bool
       
    45 	 */
       
    46 	private $updated;
       
    47 
       
    48 	/**
       
    49 	 * Constructor - Register administration header callback.
       
    50 	 *
       
    51 	 * @since 2.1.0
       
    52 	 * @param callable $admin_header_callback
       
    53 	 * @param callable $admin_image_div_callback Optional custom image div output callback.
       
    54 	 */
       
    55 	public function __construct( $admin_header_callback, $admin_image_div_callback = '' ) {
       
    56 		$this->admin_header_callback    = $admin_header_callback;
       
    57 		$this->admin_image_div_callback = $admin_image_div_callback;
       
    58 
       
    59 		add_action( 'admin_menu', array( $this, 'init' ) );
       
    60 
       
    61 		add_action( 'customize_save_after', array( $this, 'customize_set_last_used' ) );
       
    62 		add_action( 'wp_ajax_custom-header-crop', array( $this, 'ajax_header_crop' ) );
       
    63 		add_action( 'wp_ajax_custom-header-add', array( $this, 'ajax_header_add' ) );
       
    64 		add_action( 'wp_ajax_custom-header-remove', array( $this, 'ajax_header_remove' ) );
       
    65 	}
       
    66 
       
    67 	/**
       
    68 	 * Set up the hooks for the Custom Header admin page.
       
    69 	 *
       
    70 	 * @since 2.1.0
       
    71 	 */
       
    72 	public function init() {
       
    73 		$page = add_theme_page( __( 'Header' ), __( 'Header' ), 'edit_theme_options', 'custom-header', array( $this, 'admin_page' ) );
       
    74 		if ( ! $page ) {
       
    75 			return;
       
    76 		}
       
    77 
       
    78 		add_action( "admin_print_scripts-$page", array( $this, 'js_includes' ) );
       
    79 		add_action( "admin_print_styles-$page", array( $this, 'css_includes' ) );
       
    80 		add_action( "admin_head-$page", array( $this, 'help' ) );
       
    81 		add_action( "admin_head-$page", array( $this, 'take_action' ), 50 );
       
    82 		add_action( "admin_head-$page", array( $this, 'js' ), 50 );
       
    83 		if ( $this->admin_header_callback ) {
       
    84 			add_action( "admin_head-$page", $this->admin_header_callback, 51 );
       
    85 		}
       
    86 	}
       
    87 
       
    88 	/**
       
    89 	 * Adds contextual help.
       
    90 	 *
       
    91 	 * @since 3.0.0
       
    92 	 */
       
    93 	public function help() {
       
    94 		get_current_screen()->add_help_tab(
       
    95 			array(
       
    96 				'id'      => 'overview',
       
    97 				'title'   => __( 'Overview' ),
       
    98 				'content' =>
       
    99 					'<p>' . __( 'This screen is used to customize the header section of your theme.' ) . '</p>' .
       
   100 					'<p>' . __( 'You can choose from the theme&#8217;s default header images, or use one of your own. You can also customize how your Site Title and Tagline are displayed.' ) . '<p>',
       
   101 			)
       
   102 		);
       
   103 
       
   104 		get_current_screen()->add_help_tab(
       
   105 			array(
       
   106 				'id'      => 'set-header-image',
       
   107 				'title'   => __( 'Header Image' ),
       
   108 				'content' =>
       
   109 					'<p>' . __( 'You can set a custom image header for your site. Simply upload the image and crop it, and the new header will go live immediately. Alternatively, you can use an image that has already been uploaded to your Media Library by clicking the &#8220;Choose Image&#8221; button.' ) . '</p>' .
       
   110 					'<p>' . __( 'Some themes come with additional header images bundled. If you see multiple images displayed, select the one you&#8217;d like and click the &#8220;Save Changes&#8221; button.' ) . '</p>' .
       
   111 					'<p>' . __( 'If your theme has more than one default header image, or you have uploaded more than one custom header image, you have the option of having WordPress display a randomly different image on each page of your site. Click the &#8220;Random&#8221; radio button next to the Uploaded Images or Default Images section to enable this feature.' ) . '</p>' .
       
   112 					'<p>' . __( 'If you don&#8217;t want a header image to be displayed on your site at all, click the &#8220;Remove Header Image&#8221; button at the bottom of the Header Image section of this page. If you want to re-enable the header image later, you just have to select one of the other image options and click &#8220;Save Changes&#8221;.' ) . '</p>',
       
   113 			)
       
   114 		);
       
   115 
       
   116 		get_current_screen()->add_help_tab(
       
   117 			array(
       
   118 				'id'      => 'set-header-text',
       
   119 				'title'   => __( 'Header Text' ),
       
   120 				'content' =>
       
   121 					'<p>' . sprintf( __( 'For most themes, the header text is your Site Title and Tagline, as defined in the <a href="%1$s">General Settings</a> section.' ), admin_url( 'options-general.php' ) ) . '<p>' .
       
   122 					'<p>' . __( 'In the Header Text section of this page, you can choose whether to display this text or hide it. You can also choose a color for the text by clicking the Select Color button and either typing in a legitimate HTML hex value, e.g. &#8220;#ff0000&#8221; for red, or by choosing a color using the color picker.' ) . '</p>' .
       
   123 					'<p>' . __( 'Don&#8217;t forget to click &#8220;Save Changes&#8221; when you&#8217;re done!' ) . '</p>',
       
   124 			)
       
   125 		);
       
   126 
       
   127 		get_current_screen()->set_help_sidebar(
       
   128 			'<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
       
   129 			'<p>' . __( '<a href="https://codex.wordpress.org/Appearance_Header_Screen">Documentation on Custom Header</a>' ) . '</p>' .
       
   130 			'<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>'
       
   131 		);
       
   132 	}
       
   133 
       
   134 	/**
       
   135 	 * Get the current step.
       
   136 	 *
       
   137 	 * @since 2.6.0
       
   138 	 *
       
   139 	 * @return int Current step
       
   140 	 */
       
   141 	public function step() {
       
   142 		if ( ! isset( $_GET['step'] ) ) {
       
   143 			return 1;
       
   144 		}
       
   145 
       
   146 		$step = (int) $_GET['step'];
       
   147 		if ( $step < 1 || 3 < $step ||
       
   148 			( 2 == $step && ! wp_verify_nonce( $_REQUEST['_wpnonce-custom-header-upload'], 'custom-header-upload' ) ) ||
       
   149 			( 3 == $step && ! wp_verify_nonce( $_REQUEST['_wpnonce'], 'custom-header-crop-image' ) )
       
   150 		) {
       
   151 			return 1;
       
   152 		}
       
   153 
       
   154 		return $step;
       
   155 	}
       
   156 
       
   157 	/**
       
   158 	 * Set up the enqueue for the JavaScript files.
       
   159 	 *
       
   160 	 * @since 2.1.0
       
   161 	 */
       
   162 	public function js_includes() {
       
   163 		$step = $this->step();
       
   164 
       
   165 		if ( ( 1 == $step || 3 == $step ) ) {
       
   166 			wp_enqueue_media();
       
   167 			wp_enqueue_script( 'custom-header' );
       
   168 			if ( current_theme_supports( 'custom-header', 'header-text' ) ) {
       
   169 				wp_enqueue_script( 'wp-color-picker' );
       
   170 			}
       
   171 		} elseif ( 2 == $step ) {
       
   172 			wp_enqueue_script( 'imgareaselect' );
       
   173 		}
       
   174 	}
       
   175 
       
   176 	/**
       
   177 	 * Set up the enqueue for the CSS files
       
   178 	 *
       
   179 	 * @since 2.7.0
       
   180 	 */
       
   181 	public function css_includes() {
       
   182 		$step = $this->step();
       
   183 
       
   184 		if ( ( 1 == $step || 3 == $step ) && current_theme_supports( 'custom-header', 'header-text' ) ) {
       
   185 			wp_enqueue_style( 'wp-color-picker' );
       
   186 		} elseif ( 2 == $step ) {
       
   187 			wp_enqueue_style( 'imgareaselect' );
       
   188 		}
       
   189 	}
       
   190 
       
   191 	/**
       
   192 	 * Execute custom header modification.
       
   193 	 *
       
   194 	 * @since 2.6.0
       
   195 	 */
       
   196 	public function take_action() {
       
   197 		if ( ! current_user_can( 'edit_theme_options' ) ) {
       
   198 			return;
       
   199 		}
       
   200 
       
   201 		if ( empty( $_POST ) ) {
       
   202 			return;
       
   203 		}
       
   204 
       
   205 		$this->updated = true;
       
   206 
       
   207 		if ( isset( $_POST['resetheader'] ) ) {
       
   208 			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
       
   209 			$this->reset_header_image();
       
   210 			return;
       
   211 		}
       
   212 
       
   213 		if ( isset( $_POST['removeheader'] ) ) {
       
   214 			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
       
   215 			$this->remove_header_image();
       
   216 			return;
       
   217 		}
       
   218 
       
   219 		if ( isset( $_POST['text-color'] ) && ! isset( $_POST['display-header-text'] ) ) {
       
   220 			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
       
   221 			set_theme_mod( 'header_textcolor', 'blank' );
       
   222 		} elseif ( isset( $_POST['text-color'] ) ) {
       
   223 			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
       
   224 			$_POST['text-color'] = str_replace( '#', '', $_POST['text-color'] );
       
   225 			$color               = preg_replace( '/[^0-9a-fA-F]/', '', $_POST['text-color'] );
       
   226 			if ( strlen( $color ) == 6 || strlen( $color ) == 3 ) {
       
   227 				set_theme_mod( 'header_textcolor', $color );
       
   228 			} elseif ( ! $color ) {
       
   229 				set_theme_mod( 'header_textcolor', 'blank' );
       
   230 			}
       
   231 		}
       
   232 
       
   233 		if ( isset( $_POST['default-header'] ) ) {
       
   234 			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
       
   235 			$this->set_header_image( $_POST['default-header'] );
       
   236 			return;
       
   237 		}
       
   238 	}
       
   239 
       
   240 	/**
       
   241 	 * Process the default headers
       
   242 	 *
       
   243 	 * @since 3.0.0
       
   244 	 *
       
   245 	 * @global array $_wp_default_headers
       
   246 	 */
       
   247 	public function process_default_headers() {
       
   248 		global $_wp_default_headers;
       
   249 
       
   250 		if ( ! isset( $_wp_default_headers ) ) {
       
   251 			return;
       
   252 		}
       
   253 
       
   254 		if ( ! empty( $this->default_headers ) ) {
       
   255 			return;
       
   256 		}
       
   257 
       
   258 		$this->default_headers    = $_wp_default_headers;
       
   259 		$template_directory_uri   = get_template_directory_uri();
       
   260 		$stylesheet_directory_uri = get_stylesheet_directory_uri();
       
   261 		foreach ( array_keys( $this->default_headers ) as $header ) {
       
   262 			$this->default_headers[ $header ]['url']           = sprintf( $this->default_headers[ $header ]['url'], $template_directory_uri, $stylesheet_directory_uri );
       
   263 			$this->default_headers[ $header ]['thumbnail_url'] = sprintf( $this->default_headers[ $header ]['thumbnail_url'], $template_directory_uri, $stylesheet_directory_uri );
       
   264 		}
       
   265 	}
       
   266 
       
   267 	/**
       
   268 	 * Display UI for selecting one of several default headers.
       
   269 	 *
       
   270 	 * Show the random image option if this theme has multiple header images.
       
   271 	 * Random image option is on by default if no header has been set.
       
   272 	 *
       
   273 	 * @since 3.0.0
       
   274 	 *
       
   275 	 * @param string $type The header type. One of 'default' (for the Uploaded Images control)
       
   276 	 *                     or 'uploaded' (for the Uploaded Images control).
       
   277 	 */
       
   278 	public function show_header_selector( $type = 'default' ) {
       
   279 		if ( 'default' == $type ) {
       
   280 			$headers = $this->default_headers;
       
   281 		} else {
       
   282 			$headers = get_uploaded_header_images();
       
   283 			$type    = 'uploaded';
       
   284 		}
       
   285 
       
   286 		if ( 1 < count( $headers ) ) {
       
   287 			echo '<div class="random-header">';
       
   288 			echo '<label><input name="default-header" type="radio" value="random-' . $type . '-image"' . checked( is_random_header_image( $type ), true, false ) . ' />';
       
   289 			_e( '<strong>Random:</strong> Show a different image on each page.' );
       
   290 			echo '</label>';
       
   291 			echo '</div>';
       
   292 		}
       
   293 
       
   294 		echo '<div class="available-headers">';
       
   295 		foreach ( $headers as $header_key => $header ) {
       
   296 			$header_thumbnail = $header['thumbnail_url'];
       
   297 			$header_url       = $header['url'];
       
   298 			$header_alt_text  = empty( $header['alt_text'] ) ? '' : $header['alt_text'];
       
   299 			echo '<div class="default-header">';
       
   300 			echo '<label><input name="default-header" type="radio" value="' . esc_attr( $header_key ) . '" ' . checked( $header_url, get_theme_mod( 'header_image' ), false ) . ' />';
       
   301 			$width = '';
       
   302 			if ( ! empty( $header['attachment_id'] ) ) {
       
   303 				$width = ' width="230"';
       
   304 			}
       
   305 			echo '<img src="' . set_url_scheme( $header_thumbnail ) . '" alt="' . esc_attr( $header_alt_text ) . '"' . $width . ' /></label>';
       
   306 			echo '</div>';
       
   307 		}
       
   308 		echo '<div class="clear"></div></div>';
       
   309 	}
       
   310 
       
   311 	/**
       
   312 	 * Execute JavaScript depending on step.
       
   313 	 *
       
   314 	 * @since 2.1.0
       
   315 	 */
       
   316 	public function js() {
       
   317 		$step = $this->step();
       
   318 		if ( ( 1 == $step || 3 == $step ) && current_theme_supports( 'custom-header', 'header-text' ) ) {
       
   319 			$this->js_1();
       
   320 		} elseif ( 2 == $step ) {
       
   321 			$this->js_2();
       
   322 		}
       
   323 	}
       
   324 
       
   325 	/**
       
   326 	 * Display JavaScript based on Step 1 and 3.
       
   327 	 *
       
   328 	 * @since 2.6.0
       
   329 	 */
       
   330 	public function js_1() {
       
   331 		$default_color = '';
       
   332 		if ( current_theme_supports( 'custom-header', 'default-text-color' ) ) {
       
   333 			$default_color = get_theme_support( 'custom-header', 'default-text-color' );
       
   334 			if ( $default_color && false === strpos( $default_color, '#' ) ) {
       
   335 				$default_color = '#' . $default_color;
       
   336 			}
       
   337 		}
       
   338 		?>
       
   339 <script type="text/javascript">
       
   340 (function($){
       
   341 	var default_color = '<?php echo $default_color; ?>',
       
   342 		header_text_fields;
       
   343 
       
   344 	function pickColor(color) {
       
   345 		$('#name').css('color', color);
       
   346 		$('#desc').css('color', color);
       
   347 		$('#text-color').val(color);
       
   348 	}
       
   349 
       
   350 	function toggle_text() {
       
   351 		var checked = $('#display-header-text').prop('checked'),
       
   352 			text_color;
       
   353 		header_text_fields.toggle( checked );
       
   354 		if ( ! checked )
       
   355 			return;
       
   356 		text_color = $('#text-color');
       
   357 		if ( '' == text_color.val().replace('#', '') ) {
       
   358 			text_color.val( default_color );
       
   359 			pickColor( default_color );
       
   360 		} else {
       
   361 			pickColor( text_color.val() );
       
   362 		}
       
   363 	}
       
   364 
       
   365 	$(document).ready(function() {
       
   366 		var text_color = $('#text-color');
       
   367 		header_text_fields = $('.displaying-header-text');
       
   368 		text_color.wpColorPicker({
       
   369 			change: function( event, ui ) {
       
   370 				pickColor( text_color.wpColorPicker('color') );
       
   371 			},
       
   372 			clear: function() {
       
   373 				pickColor( '' );
       
   374 			}
       
   375 		});
       
   376 		$('#display-header-text').click( toggle_text );
       
   377 		<?php if ( ! display_header_text() ) : ?>
       
   378 		toggle_text();
       
   379 		<?php endif; ?>
       
   380 	});
       
   381 })(jQuery);
       
   382 </script>
       
   383 		<?php
       
   384 	}
       
   385 
       
   386 	/**
       
   387 	 * Display JavaScript based on Step 2.
       
   388 	 *
       
   389 	 * @since 2.6.0
       
   390 	 */
       
   391 	public function js_2() {
       
   392 
       
   393 		?>
       
   394 <script type="text/javascript">
       
   395 	function onEndCrop( coords ) {
       
   396 		jQuery( '#x1' ).val(coords.x);
       
   397 		jQuery( '#y1' ).val(coords.y);
       
   398 		jQuery( '#width' ).val(coords.w);
       
   399 		jQuery( '#height' ).val(coords.h);
       
   400 	}
       
   401 
       
   402 	jQuery(document).ready(function() {
       
   403 		var xinit = <?php echo absint( get_theme_support( 'custom-header', 'width' ) ); ?>;
       
   404 		var yinit = <?php echo absint( get_theme_support( 'custom-header', 'height' ) ); ?>;
       
   405 		var ratio = xinit / yinit;
       
   406 		var ximg = jQuery('img#upload').width();
       
   407 		var yimg = jQuery('img#upload').height();
       
   408 
       
   409 		if ( yimg < yinit || ximg < xinit ) {
       
   410 			if ( ximg / yimg > ratio ) {
       
   411 				yinit = yimg;
       
   412 				xinit = yinit * ratio;
       
   413 			} else {
       
   414 				xinit = ximg;
       
   415 				yinit = xinit / ratio;
       
   416 			}
       
   417 		}
       
   418 
       
   419 		jQuery('img#upload').imgAreaSelect({
       
   420 			handles: true,
       
   421 			keys: true,
       
   422 			show: true,
       
   423 			x1: 0,
       
   424 			y1: 0,
       
   425 			x2: xinit,
       
   426 			y2: yinit,
       
   427 			<?php
       
   428 			if ( ! current_theme_supports( 'custom-header', 'flex-height' ) && ! current_theme_supports( 'custom-header', 'flex-width' ) ) {
       
   429 				?>
       
   430 			aspectRatio: xinit + ':' + yinit,
       
   431 				<?php
       
   432 			}
       
   433 			if ( ! current_theme_supports( 'custom-header', 'flex-height' ) ) {
       
   434 				?>
       
   435 			maxHeight: <?php echo get_theme_support( 'custom-header', 'height' ); ?>,
       
   436 				<?php
       
   437 			}
       
   438 			if ( ! current_theme_supports( 'custom-header', 'flex-width' ) ) {
       
   439 				?>
       
   440 			maxWidth: <?php echo get_theme_support( 'custom-header', 'width' ); ?>,
       
   441 				<?php
       
   442 			}
       
   443 			?>
       
   444 			onInit: function () {
       
   445 				jQuery('#width').val(xinit);
       
   446 				jQuery('#height').val(yinit);
       
   447 			},
       
   448 			onSelectChange: function(img, c) {
       
   449 				jQuery('#x1').val(c.x1);
       
   450 				jQuery('#y1').val(c.y1);
       
   451 				jQuery('#width').val(c.width);
       
   452 				jQuery('#height').val(c.height);
       
   453 			}
       
   454 		});
       
   455 	});
       
   456 </script>
       
   457 		<?php
       
   458 	}
       
   459 
       
   460 	/**
       
   461 	 * Display first step of custom header image page.
       
   462 	 *
       
   463 	 * @since 2.1.0
       
   464 	 */
       
   465 	public function step_1() {
       
   466 		$this->process_default_headers();
       
   467 		?>
       
   468 
       
   469 <div class="wrap">
       
   470 <h1><?php _e( 'Custom Header' ); ?></h1>
       
   471 
       
   472 		<?php if ( current_user_can( 'customize' ) ) { ?>
       
   473 <div class="notice notice-info hide-if-no-customize">
       
   474 	<p>
       
   475 			<?php
       
   476 				printf(
       
   477 					__( 'You can now manage and live-preview Custom Header in the <a href="%1$s">Customizer</a>.' ),
       
   478 					admin_url( 'customize.php?autofocus[control]=header_image' )
       
   479 				);
       
   480 			?>
       
   481 	</p>
       
   482 </div>
       
   483 		<?php } ?>
       
   484 
       
   485 		<?php if ( ! empty( $this->updated ) ) { ?>
       
   486 <div id="message" class="updated">
       
   487 <p><?php printf( __( 'Header updated. <a href="%s">Visit your site</a> to see how it looks.' ), home_url( '/' ) ); ?></p>
       
   488 </div>
       
   489 		<?php } ?>
       
   490 
       
   491 <h2><?php _e( 'Header Image' ); ?></h2>
       
   492 
       
   493 <table class="form-table" role="presentation">
       
   494 <tbody>
       
   495 
       
   496 		<?php if ( get_custom_header() || display_header_text() ) : ?>
       
   497 <tr>
       
   498 <th scope="row"><?php _e( 'Preview' ); ?></th>
       
   499 <td>
       
   500 			<?php
       
   501 			if ( $this->admin_image_div_callback ) {
       
   502 				call_user_func( $this->admin_image_div_callback );
       
   503 			} else {
       
   504 				$custom_header = get_custom_header();
       
   505 				$header_image  = get_header_image();
       
   506 
       
   507 				if ( $header_image ) {
       
   508 					$header_image_style = 'background-image:url(' . esc_url( $header_image ) . ');';
       
   509 				} else {
       
   510 					$header_image_style = '';
       
   511 				}
       
   512 
       
   513 				if ( $custom_header->width ) {
       
   514 					$header_image_style .= 'max-width:' . $custom_header->width . 'px;';
       
   515 				}
       
   516 				if ( $custom_header->height ) {
       
   517 					$header_image_style .= 'height:' . $custom_header->height . 'px;';
       
   518 				}
       
   519 				?>
       
   520 	<div id="headimg" style="<?php echo $header_image_style; ?>">
       
   521 				<?php
       
   522 				if ( display_header_text() ) {
       
   523 					$style = ' style="color:#' . get_header_textcolor() . ';"';
       
   524 				} else {
       
   525 					$style = ' style="display:none;"';
       
   526 				}
       
   527 				?>
       
   528 		<h1><a id="name" class="displaying-header-text" <?php echo $style; ?> onclick="return false;" href="<?php bloginfo( 'url' ); ?>" tabindex="-1"><?php bloginfo( 'name' ); ?></a></h1>
       
   529 		<div id="desc" class="displaying-header-text" <?php echo $style; ?>><?php bloginfo( 'description' ); ?></div>
       
   530 	</div>
       
   531 			<?php } ?>
       
   532 </td>
       
   533 </tr>
       
   534 		<?php endif; ?>
       
   535 
       
   536 		<?php if ( current_user_can( 'upload_files' ) && current_theme_supports( 'custom-header', 'uploads' ) ) : ?>
       
   537 <tr>
       
   538 <th scope="row"><?php _e( 'Select Image' ); ?></th>
       
   539 <td>
       
   540 	<p><?php _e( 'You can select an image to be shown at the top of your site by uploading from your computer or choosing from your media library. After selecting an image you will be able to crop it.' ); ?><br />
       
   541 			<?php
       
   542 			if ( ! current_theme_supports( 'custom-header', 'flex-height' ) && ! current_theme_supports( 'custom-header', 'flex-width' ) ) {
       
   543 				printf( __( 'Images of exactly <strong>%1$d &times; %2$d pixels</strong> will be used as-is.' ) . '<br />', get_theme_support( 'custom-header', 'width' ), get_theme_support( 'custom-header', 'height' ) );
       
   544 			} elseif ( current_theme_supports( 'custom-header', 'flex-height' ) ) {
       
   545 				if ( ! current_theme_supports( 'custom-header', 'flex-width' ) ) {
       
   546 					printf(
       
   547 						/* translators: %s: size in pixels */
       
   548 						__( 'Images should be at least %s wide.' ) . ' ',
       
   549 						sprintf(
       
   550 							/* translators: %d: custom header width */
       
   551 							'<strong>' . __( '%d pixels' ) . '</strong>',
       
   552 							get_theme_support( 'custom-header', 'width' )
       
   553 						)
       
   554 					);
       
   555 				}
       
   556 			} elseif ( current_theme_supports( 'custom-header', 'flex-width' ) ) {
       
   557 				if ( ! current_theme_supports( 'custom-header', 'flex-height' ) ) {
       
   558 					printf(
       
   559 						/* translators: %s: size in pixels */
       
   560 						__( 'Images should be at least %s tall.' ) . ' ',
       
   561 						sprintf(
       
   562 							/* translators: %d: custom header height */
       
   563 							'<strong>' . __( '%d pixels' ) . '</strong>',
       
   564 							get_theme_support( 'custom-header', 'height' )
       
   565 						)
       
   566 					);
       
   567 				}
       
   568 			}
       
   569 			if ( current_theme_supports( 'custom-header', 'flex-height' ) || current_theme_supports( 'custom-header', 'flex-width' ) ) {
       
   570 				if ( current_theme_supports( 'custom-header', 'width' ) ) {
       
   571 					printf(
       
   572 						/* translators: %s: size in pixels */
       
   573 						__( 'Suggested width is %s.' ) . ' ',
       
   574 						sprintf(
       
   575 							/* translators: %d: custom header width */
       
   576 							'<strong>' . __( '%d pixels' ) . '</strong>',
       
   577 							get_theme_support( 'custom-header', 'width' )
       
   578 						)
       
   579 					);
       
   580 				}
       
   581 				if ( current_theme_supports( 'custom-header', 'height' ) ) {
       
   582 					printf(
       
   583 						/* translators: %s: size in pixels */
       
   584 						__( 'Suggested height is %s.' ) . ' ',
       
   585 						sprintf(
       
   586 							/* translators: %d: custom header height */
       
   587 							'<strong>' . __( '%d pixels' ) . '</strong>',
       
   588 							get_theme_support( 'custom-header', 'height' )
       
   589 						)
       
   590 					);
       
   591 				}
       
   592 			}
       
   593 			?>
       
   594 	</p>
       
   595 	<form enctype="multipart/form-data" id="upload-form" class="wp-upload-form" method="post" action="<?php echo esc_url( add_query_arg( 'step', 2 ) ); ?>">
       
   596 	<p>
       
   597 		<label for="upload"><?php _e( 'Choose an image from your computer:' ); ?></label><br />
       
   598 		<input type="file" id="upload" name="import" />
       
   599 		<input type="hidden" name="action" value="save" />
       
   600 			<?php wp_nonce_field( 'custom-header-upload', '_wpnonce-custom-header-upload' ); ?>
       
   601 			<?php submit_button( __( 'Upload' ), '', 'submit', false ); ?>
       
   602 	</p>
       
   603 			<?php
       
   604 				$modal_update_href = esc_url(
       
   605 					add_query_arg(
       
   606 						array(
       
   607 							'page' => 'custom-header',
       
   608 							'step' => 2,
       
   609 							'_wpnonce-custom-header-upload' => wp_create_nonce( 'custom-header-upload' ),
       
   610 						),
       
   611 						admin_url( 'themes.php' )
       
   612 					)
       
   613 				);
       
   614 			?>
       
   615 	<p>
       
   616 		<label for="choose-from-library-link"><?php _e( 'Or choose an image from your media library:' ); ?></label><br />
       
   617 		<button id="choose-from-library-link" class="button"
       
   618 			data-update-link="<?php echo esc_attr( $modal_update_href ); ?>"
       
   619 			data-choose="<?php esc_attr_e( 'Choose a Custom Header' ); ?>"
       
   620 			data-update="<?php esc_attr_e( 'Set as header' ); ?>"><?php _e( 'Choose Image' ); ?></button>
       
   621 	</p>
       
   622 	</form>
       
   623 </td>
       
   624 </tr>
       
   625 		<?php endif; ?>
       
   626 </tbody>
       
   627 </table>
       
   628 
       
   629 <form method="post" action="<?php echo esc_url( add_query_arg( 'step', 1 ) ); ?>">
       
   630 		<?php submit_button( null, 'screen-reader-text', 'save-header-options', false ); ?>
       
   631 <table class="form-table" role="presentation">
       
   632 <tbody>
       
   633 		<?php if ( get_uploaded_header_images() ) : ?>
       
   634 <tr>
       
   635 <th scope="row"><?php _e( 'Uploaded Images' ); ?></th>
       
   636 <td>
       
   637 	<p><?php _e( 'You can choose one of your previously uploaded headers, or show a random one.' ); ?></p>
       
   638 			<?php
       
   639 			$this->show_header_selector( 'uploaded' );
       
   640 			?>
       
   641 </td>
       
   642 </tr>
       
   643 			<?php
       
   644 	endif;
       
   645 		if ( ! empty( $this->default_headers ) ) :
       
   646 			?>
       
   647 <tr>
       
   648 <th scope="row"><?php _e( 'Default Images' ); ?></th>
       
   649 <td>
       
   650 			<?php if ( current_theme_supports( 'custom-header', 'uploads' ) ) : ?>
       
   651 	<p><?php _e( 'If you don&lsquo;t want to upload your own image, you can use one of these cool headers, or show a random one.' ); ?></p>
       
   652 	<?php else : ?>
       
   653 	<p><?php _e( 'You can use one of these cool headers or show a random one on each page.' ); ?></p>
       
   654 	<?php endif; ?>
       
   655 			<?php
       
   656 			$this->show_header_selector( 'default' );
       
   657 			?>
       
   658 </td>
       
   659 </tr>
       
   660 			<?php
       
   661 	endif;
       
   662 		if ( get_header_image() ) :
       
   663 			?>
       
   664 <tr>
       
   665 <th scope="row"><?php _e( 'Remove Image' ); ?></th>
       
   666 <td>
       
   667 	<p><?php _e( 'This will remove the header image. You will not be able to restore any customizations.' ); ?></p>
       
   668 			<?php submit_button( __( 'Remove Header Image' ), '', 'removeheader', false ); ?>
       
   669 </td>
       
   670 </tr>
       
   671 			<?php
       
   672 	endif;
       
   673 
       
   674 		$default_image = sprintf( get_theme_support( 'custom-header', 'default-image' ), get_template_directory_uri(), get_stylesheet_directory_uri() );
       
   675 		if ( $default_image && get_header_image() != $default_image ) :
       
   676 			?>
       
   677 <tr>
       
   678 <th scope="row"><?php _e( 'Reset Image' ); ?></th>
       
   679 <td>
       
   680 	<p><?php _e( 'This will restore the original header image. You will not be able to restore any customizations.' ); ?></p>
       
   681 			<?php submit_button( __( 'Restore Original Header Image' ), '', 'resetheader', false ); ?>
       
   682 </td>
       
   683 </tr>
       
   684 	<?php endif; ?>
       
   685 </tbody>
       
   686 </table>
       
   687 
       
   688 		<?php if ( current_theme_supports( 'custom-header', 'header-text' ) ) : ?>
       
   689 
       
   690 <h2><?php _e( 'Header Text' ); ?></h2>
       
   691 
       
   692 <table class="form-table" role="presentation">
       
   693 <tbody>
       
   694 <tr>
       
   695 <th scope="row"><?php _e( 'Header Text' ); ?></th>
       
   696 <td>
       
   697 	<p>
       
   698 	<label><input type="checkbox" name="display-header-text" id="display-header-text"<?php checked( display_header_text() ); ?> /> <?php _e( 'Show header text with your image.' ); ?></label>
       
   699 	</p>
       
   700 </td>
       
   701 </tr>
       
   702 
       
   703 <tr class="displaying-header-text">
       
   704 <th scope="row"><?php _e( 'Text Color' ); ?></th>
       
   705 <td>
       
   706 	<p>
       
   707 			<?php
       
   708 			$default_color = '';
       
   709 			if ( current_theme_supports( 'custom-header', 'default-text-color' ) ) {
       
   710 				$default_color = get_theme_support( 'custom-header', 'default-text-color' );
       
   711 				if ( $default_color && false === strpos( $default_color, '#' ) ) {
       
   712 					$default_color = '#' . $default_color;
       
   713 				}
       
   714 			}
       
   715 
       
   716 			$default_color_attr = $default_color ? ' data-default-color="' . esc_attr( $default_color ) . '"' : '';
       
   717 
       
   718 			$header_textcolor = display_header_text() ? get_header_textcolor() : get_theme_support( 'custom-header', 'default-text-color' );
       
   719 			if ( $header_textcolor && false === strpos( $header_textcolor, '#' ) ) {
       
   720 				$header_textcolor = '#' . $header_textcolor;
       
   721 			}
       
   722 
       
   723 			echo '<input type="text" name="text-color" id="text-color" value="' . esc_attr( $header_textcolor ) . '"' . $default_color_attr . ' />';
       
   724 			if ( $default_color ) {
       
   725 				echo ' <span class="description hide-if-js">' . sprintf( _x( 'Default: %s', 'color' ), esc_html( $default_color ) ) . '</span>';
       
   726 			}
       
   727 			?>
       
   728 	</p>
       
   729 </td>
       
   730 </tr>
       
   731 </tbody>
       
   732 </table>
       
   733 			<?php
       
   734 endif;
       
   735 
       
   736 		/**
       
   737 		 * Fires just before the submit button in the custom header options form.
       
   738 		 *
       
   739 		 * @since 3.1.0
       
   740 		 */
       
   741 		do_action( 'custom_header_options' );
       
   742 
       
   743 		wp_nonce_field( 'custom-header-options', '_wpnonce-custom-header-options' );
       
   744 		?>
       
   745 
       
   746 		<?php submit_button( null, 'primary', 'save-header-options' ); ?>
       
   747 </form>
       
   748 </div>
       
   749 
       
   750 		<?php
       
   751 	}
       
   752 
       
   753 	/**
       
   754 	 * Display second step of custom header image page.
       
   755 	 *
       
   756 	 * @since 2.1.0
       
   757 	 */
       
   758 	public function step_2() {
       
   759 		check_admin_referer( 'custom-header-upload', '_wpnonce-custom-header-upload' );
       
   760 		if ( ! current_theme_supports( 'custom-header', 'uploads' ) ) {
       
   761 			wp_die(
       
   762 				'<h1>' . __( 'Something went wrong.' ) . '</h1>' .
       
   763 				'<p>' . __( 'The current theme does not support uploading a custom header image.' ) . '</p>',
       
   764 				403
       
   765 			);
       
   766 		}
       
   767 
       
   768 		if ( empty( $_POST ) && isset( $_GET['file'] ) ) {
       
   769 			$attachment_id = absint( $_GET['file'] );
       
   770 			$file          = get_attached_file( $attachment_id, true );
       
   771 			$url           = wp_get_attachment_image_src( $attachment_id, 'full' );
       
   772 			$url           = $url[0];
       
   773 		} elseif ( isset( $_POST ) ) {
       
   774 			$data          = $this->step_2_manage_upload();
       
   775 			$attachment_id = $data['attachment_id'];
       
   776 			$file          = $data['file'];
       
   777 			$url           = $data['url'];
       
   778 		}
       
   779 
       
   780 		if ( file_exists( $file ) ) {
       
   781 			list( $width, $height, $type, $attr ) = getimagesize( $file );
       
   782 		} else {
       
   783 			$data   = wp_get_attachment_metadata( $attachment_id );
       
   784 			$height = isset( $data['height'] ) ? $data['height'] : 0;
       
   785 			$width  = isset( $data['width'] ) ? $data['width'] : 0;
       
   786 			unset( $data );
       
   787 		}
       
   788 
       
   789 		$max_width = 0;
       
   790 		// For flex, limit size of image displayed to 1500px unless theme says otherwise
       
   791 		if ( current_theme_supports( 'custom-header', 'flex-width' ) ) {
       
   792 			$max_width = 1500;
       
   793 		}
       
   794 
       
   795 		if ( current_theme_supports( 'custom-header', 'max-width' ) ) {
       
   796 			$max_width = max( $max_width, get_theme_support( 'custom-header', 'max-width' ) );
       
   797 		}
       
   798 		$max_width = max( $max_width, get_theme_support( 'custom-header', 'width' ) );
       
   799 
       
   800 		// If flexible height isn't supported and the image is the exact right size
       
   801 		if ( ! current_theme_supports( 'custom-header', 'flex-height' ) && ! current_theme_supports( 'custom-header', 'flex-width' )
       
   802 			&& $width == get_theme_support( 'custom-header', 'width' ) && $height == get_theme_support( 'custom-header', 'height' ) ) {
       
   803 			// Add the meta-data
       
   804 			if ( file_exists( $file ) ) {
       
   805 				wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
       
   806 			}
       
   807 
       
   808 			$this->set_header_image( compact( 'url', 'attachment_id', 'width', 'height' ) );
       
   809 
       
   810 			/**
       
   811 			 * Fires after the header image is set or an error is returned.
       
   812 			 *
       
   813 			 * @since 2.1.0
       
   814 			 *
       
   815 			 * @param string $file          Path to the file.
       
   816 			 * @param int    $attachment_id Attachment ID.
       
   817 			 */
       
   818 			do_action( 'wp_create_file_in_uploads', $file, $attachment_id ); // For replication
       
   819 
       
   820 			return $this->finished();
       
   821 		} elseif ( $width > $max_width ) {
       
   822 			$oitar = $width / $max_width;
       
   823 			$image = wp_crop_image( $attachment_id, 0, 0, $width, $height, $max_width, $height / $oitar, false, str_replace( wp_basename( $file ), 'midsize-' . wp_basename( $file ), $file ) );
       
   824 			if ( ! $image || is_wp_error( $image ) ) {
       
   825 				wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
       
   826 			}
       
   827 
       
   828 			/** This filter is documented in wp-admin/custom-header.php */
       
   829 			$image = apply_filters( 'wp_create_file_in_uploads', $image, $attachment_id ); // For replication
       
   830 
       
   831 			$url    = str_replace( wp_basename( $url ), wp_basename( $image ), $url );
       
   832 			$width  = $width / $oitar;
       
   833 			$height = $height / $oitar;
       
   834 		} else {
       
   835 			$oitar = 1;
       
   836 		}
       
   837 		?>
       
   838 
       
   839 <div class="wrap">
       
   840 <h1><?php _e( 'Crop Header Image' ); ?></h1>
       
   841 
       
   842 <form method="post" action="<?php echo esc_url( add_query_arg( 'step', 3 ) ); ?>">
       
   843 	<p class="hide-if-no-js"><?php _e( 'Choose the part of the image you want to use as your header.' ); ?></p>
       
   844 	<p class="hide-if-js"><strong><?php _e( 'You need JavaScript to choose a part of the image.' ); ?></strong></p>
       
   845 
       
   846 	<div id="crop_image" style="position: relative">
       
   847 		<img src="<?php echo esc_url( $url ); ?>" id="upload" width="<?php echo $width; ?>" height="<?php echo $height; ?>" alt="" />
       
   848 	</div>
       
   849 
       
   850 	<input type="hidden" name="x1" id="x1" value="0"/>
       
   851 	<input type="hidden" name="y1" id="y1" value="0"/>
       
   852 	<input type="hidden" name="width" id="width" value="<?php echo esc_attr( $width ); ?>"/>
       
   853 	<input type="hidden" name="height" id="height" value="<?php echo esc_attr( $height ); ?>"/>
       
   854 	<input type="hidden" name="attachment_id" id="attachment_id" value="<?php echo esc_attr( $attachment_id ); ?>" />
       
   855 	<input type="hidden" name="oitar" id="oitar" value="<?php echo esc_attr( $oitar ); ?>" />
       
   856 		<?php if ( empty( $_POST ) && isset( $_GET['file'] ) ) { ?>
       
   857 	<input type="hidden" name="create-new-attachment" value="true" />
       
   858 	<?php } ?>
       
   859 		<?php wp_nonce_field( 'custom-header-crop-image' ); ?>
       
   860 
       
   861 	<p class="submit">
       
   862 		<?php submit_button( __( 'Crop and Publish' ), 'primary', 'submit', false ); ?>
       
   863 		<?php
       
   864 		if ( isset( $oitar ) && 1 == $oitar && ( current_theme_supports( 'custom-header', 'flex-height' ) || current_theme_supports( 'custom-header', 'flex-width' ) ) ) {
       
   865 			submit_button( __( 'Skip Cropping, Publish Image as Is' ), '', 'skip-cropping', false );
       
   866 		}
       
   867 		?>
       
   868 	</p>
       
   869 </form>
       
   870 </div>
       
   871 		<?php
       
   872 	}
       
   873 
       
   874 
       
   875 	/**
       
   876 	 * Upload the file to be cropped in the second step.
       
   877 	 *
       
   878 	 * @since 3.4.0
       
   879 	 */
       
   880 	public function step_2_manage_upload() {
       
   881 		$overrides = array( 'test_form' => false );
       
   882 
       
   883 		$uploaded_file = $_FILES['import'];
       
   884 		$wp_filetype   = wp_check_filetype_and_ext( $uploaded_file['tmp_name'], $uploaded_file['name'] );
       
   885 		if ( ! wp_match_mime_types( 'image', $wp_filetype['type'] ) ) {
       
   886 			wp_die( __( 'The uploaded file is not a valid image. Please try again.' ) );
       
   887 		}
       
   888 
       
   889 		$file = wp_handle_upload( $uploaded_file, $overrides );
       
   890 
       
   891 		if ( isset( $file['error'] ) ) {
       
   892 			wp_die( $file['error'], __( 'Image Upload Error' ) );
       
   893 		}
       
   894 
       
   895 		$url      = $file['url'];
       
   896 		$type     = $file['type'];
       
   897 		$file     = $file['file'];
       
   898 		$filename = wp_basename( $file );
       
   899 
       
   900 		// Construct the object array
       
   901 		$object = array(
       
   902 			'post_title'     => $filename,
       
   903 			'post_content'   => $url,
       
   904 			'post_mime_type' => $type,
       
   905 			'guid'           => $url,
       
   906 			'context'        => 'custom-header',
       
   907 		);
       
   908 
       
   909 		// Save the data
       
   910 		$attachment_id = wp_insert_attachment( $object, $file );
       
   911 		return compact( 'attachment_id', 'file', 'filename', 'url', 'type' );
       
   912 	}
       
   913 
       
   914 	/**
       
   915 	 * Display third step of custom header image page.
       
   916 	 *
       
   917 	 * @since 2.1.0
       
   918 	 * @since 4.4.0 Switched to using wp_get_attachment_url() instead of the guid
       
   919 	 *              for retrieving the header image URL.
       
   920 	 */
       
   921 	public function step_3() {
       
   922 		check_admin_referer( 'custom-header-crop-image' );
       
   923 
       
   924 		if ( ! current_theme_supports( 'custom-header', 'uploads' ) ) {
       
   925 			wp_die(
       
   926 				'<h1>' . __( 'Something went wrong.' ) . '</h1>' .
       
   927 				'<p>' . __( 'The current theme does not support uploading a custom header image.' ) . '</p>',
       
   928 				403
       
   929 			);
       
   930 		}
       
   931 
       
   932 		if ( ! empty( $_POST['skip-cropping'] ) && ! ( current_theme_supports( 'custom-header', 'flex-height' ) || current_theme_supports( 'custom-header', 'flex-width' ) ) ) {
       
   933 			wp_die(
       
   934 				'<h1>' . __( 'Something went wrong.' ) . '</h1>' .
       
   935 				'<p>' . __( 'The current theme does not support a flexible sized header image.' ) . '</p>',
       
   936 				403
       
   937 			);
       
   938 		}
       
   939 
       
   940 		if ( $_POST['oitar'] > 1 ) {
       
   941 			$_POST['x1']     = $_POST['x1'] * $_POST['oitar'];
       
   942 			$_POST['y1']     = $_POST['y1'] * $_POST['oitar'];
       
   943 			$_POST['width']  = $_POST['width'] * $_POST['oitar'];
       
   944 			$_POST['height'] = $_POST['height'] * $_POST['oitar'];
       
   945 		}
       
   946 
       
   947 		$attachment_id = absint( $_POST['attachment_id'] );
       
   948 		$original      = get_attached_file( $attachment_id );
       
   949 
       
   950 		$dimensions = $this->get_header_dimensions(
       
   951 			array(
       
   952 				'height' => $_POST['height'],
       
   953 				'width'  => $_POST['width'],
       
   954 			)
       
   955 		);
       
   956 		$height     = $dimensions['dst_height'];
       
   957 		$width      = $dimensions['dst_width'];
       
   958 
       
   959 		if ( empty( $_POST['skip-cropping'] ) ) {
       
   960 			$cropped = wp_crop_image( $attachment_id, (int) $_POST['x1'], (int) $_POST['y1'], (int) $_POST['width'], (int) $_POST['height'], $width, $height );
       
   961 		} elseif ( ! empty( $_POST['create-new-attachment'] ) ) {
       
   962 			$cropped = _copy_image_file( $attachment_id );
       
   963 		} else {
       
   964 			$cropped = get_attached_file( $attachment_id );
       
   965 		}
       
   966 
       
   967 		if ( ! $cropped || is_wp_error( $cropped ) ) {
       
   968 			wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
       
   969 		}
       
   970 
       
   971 		/** This filter is documented in wp-admin/custom-header.php */
       
   972 		$cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication
       
   973 
       
   974 		$object = $this->create_attachment_object( $cropped, $attachment_id );
       
   975 
       
   976 		if ( ! empty( $_POST['create-new-attachment'] ) ) {
       
   977 			unset( $object['ID'] );
       
   978 		}
       
   979 
       
   980 		// Update the attachment
       
   981 		$attachment_id = $this->insert_attachment( $object, $cropped );
       
   982 
       
   983 		$url = wp_get_attachment_url( $attachment_id );
       
   984 		$this->set_header_image( compact( 'url', 'attachment_id', 'width', 'height' ) );
       
   985 
       
   986 		// Cleanup.
       
   987 		$medium = str_replace( wp_basename( $original ), 'midsize-' . wp_basename( $original ), $original );
       
   988 		if ( file_exists( $medium ) ) {
       
   989 			wp_delete_file( $medium );
       
   990 		}
       
   991 
       
   992 		if ( empty( $_POST['create-new-attachment'] ) && empty( $_POST['skip-cropping'] ) ) {
       
   993 			wp_delete_file( $original );
       
   994 		}
       
   995 
       
   996 		return $this->finished();
       
   997 	}
       
   998 
       
   999 	/**
       
  1000 	 * Display last step of custom header image page.
       
  1001 	 *
       
  1002 	 * @since 2.1.0
       
  1003 	 */
       
  1004 	public function finished() {
       
  1005 		$this->updated = true;
       
  1006 		$this->step_1();
       
  1007 	}
       
  1008 
       
  1009 	/**
       
  1010 	 * Display the page based on the current step.
       
  1011 	 *
       
  1012 	 * @since 2.1.0
       
  1013 	 */
       
  1014 	public function admin_page() {
       
  1015 		if ( ! current_user_can( 'edit_theme_options' ) ) {
       
  1016 			wp_die( __( 'Sorry, you are not allowed to customize headers.' ) );
       
  1017 		}
       
  1018 		$step = $this->step();
       
  1019 		if ( 2 == $step ) {
       
  1020 			$this->step_2();
       
  1021 		} elseif ( 3 == $step ) {
       
  1022 			$this->step_3();
       
  1023 		} else {
       
  1024 			$this->step_1();
       
  1025 		}
       
  1026 	}
       
  1027 
       
  1028 	/**
       
  1029 	 * Unused since 3.5.0.
       
  1030 	 *
       
  1031 	 * @since 3.4.0
       
  1032 	 *
       
  1033 	 * @param array $form_fields
       
  1034 	 * @return array $form_fields
       
  1035 	 */
       
  1036 	public function attachment_fields_to_edit( $form_fields ) {
       
  1037 		return $form_fields;
       
  1038 	}
       
  1039 
       
  1040 	/**
       
  1041 	 * Unused since 3.5.0.
       
  1042 	 *
       
  1043 	 * @since 3.4.0
       
  1044 	 *
       
  1045 	 * @param array $tabs
       
  1046 	 * @return array $tabs
       
  1047 	 */
       
  1048 	public function filter_upload_tabs( $tabs ) {
       
  1049 		return $tabs;
       
  1050 	}
       
  1051 
       
  1052 	/**
       
  1053 	 * Choose a header image, selected from existing uploaded and default headers,
       
  1054 	 * or provide an array of uploaded header data (either new, or from media library).
       
  1055 	 *
       
  1056 	 * @since 3.4.0
       
  1057 	 *
       
  1058 	 * @param mixed $choice Which header image to select. Allows for values of 'random-default-image',
       
  1059 	 *  for randomly cycling among the default images; 'random-uploaded-image', for randomly cycling
       
  1060 	 *  among the uploaded images; the key of a default image registered for that theme; and
       
  1061 	 *  the key of an image uploaded for that theme (the attachment ID of the image).
       
  1062 	 *  Or an array of arguments: attachment_id, url, width, height. All are required.
       
  1063 	 */
       
  1064 	final public function set_header_image( $choice ) {
       
  1065 		if ( is_array( $choice ) || is_object( $choice ) ) {
       
  1066 			$choice = (array) $choice;
       
  1067 			if ( ! isset( $choice['attachment_id'] ) || ! isset( $choice['url'] ) ) {
       
  1068 				return;
       
  1069 			}
       
  1070 
       
  1071 			$choice['url'] = esc_url_raw( $choice['url'] );
       
  1072 
       
  1073 			$header_image_data = (object) array(
       
  1074 				'attachment_id' => $choice['attachment_id'],
       
  1075 				'url'           => $choice['url'],
       
  1076 				'thumbnail_url' => $choice['url'],
       
  1077 				'height'        => $choice['height'],
       
  1078 				'width'         => $choice['width'],
       
  1079 			);
       
  1080 
       
  1081 			update_post_meta( $choice['attachment_id'], '_wp_attachment_is_custom_header', get_stylesheet() );
       
  1082 			set_theme_mod( 'header_image', $choice['url'] );
       
  1083 			set_theme_mod( 'header_image_data', $header_image_data );
       
  1084 			return;
       
  1085 		}
       
  1086 
       
  1087 		if ( in_array( $choice, array( 'remove-header', 'random-default-image', 'random-uploaded-image' ) ) ) {
       
  1088 			set_theme_mod( 'header_image', $choice );
       
  1089 			remove_theme_mod( 'header_image_data' );
       
  1090 			return;
       
  1091 		}
       
  1092 
       
  1093 		$uploaded = get_uploaded_header_images();
       
  1094 		if ( $uploaded && isset( $uploaded[ $choice ] ) ) {
       
  1095 			$header_image_data = $uploaded[ $choice ];
       
  1096 
       
  1097 		} else {
       
  1098 			$this->process_default_headers();
       
  1099 			if ( isset( $this->default_headers[ $choice ] ) ) {
       
  1100 				$header_image_data = $this->default_headers[ $choice ];
       
  1101 			} else {
       
  1102 				return;
       
  1103 			}
       
  1104 		}
       
  1105 
       
  1106 		set_theme_mod( 'header_image', esc_url_raw( $header_image_data['url'] ) );
       
  1107 		set_theme_mod( 'header_image_data', $header_image_data );
       
  1108 	}
       
  1109 
       
  1110 	/**
       
  1111 	 * Remove a header image.
       
  1112 	 *
       
  1113 	 * @since 3.4.0
       
  1114 	 */
       
  1115 	final public function remove_header_image() {
       
  1116 		$this->set_header_image( 'remove-header' );
       
  1117 	}
       
  1118 
       
  1119 	/**
       
  1120 	 * Reset a header image to the default image for the theme.
       
  1121 	 *
       
  1122 	 * This method does not do anything if the theme does not have a default header image.
       
  1123 	 *
       
  1124 	 * @since 3.4.0
       
  1125 	 */
       
  1126 	final public function reset_header_image() {
       
  1127 		$this->process_default_headers();
       
  1128 		$default = get_theme_support( 'custom-header', 'default-image' );
       
  1129 
       
  1130 		if ( ! $default ) {
       
  1131 			$this->remove_header_image();
       
  1132 			return;
       
  1133 		}
       
  1134 		$default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() );
       
  1135 
       
  1136 		$default_data = array();
       
  1137 		foreach ( $this->default_headers as $header => $details ) {
       
  1138 			if ( $details['url'] == $default ) {
       
  1139 				$default_data = $details;
       
  1140 				break;
       
  1141 			}
       
  1142 		}
       
  1143 
       
  1144 		set_theme_mod( 'header_image', $default );
       
  1145 		set_theme_mod( 'header_image_data', (object) $default_data );
       
  1146 	}
       
  1147 
       
  1148 	/**
       
  1149 	 * Calculate width and height based on what the currently selected theme supports.
       
  1150 	 *
       
  1151 	 * @since 3.9.0
       
  1152 	 *
       
  1153 	 * @param array $dimensions
       
  1154 	 * @return array dst_height and dst_width of header image.
       
  1155 	 */
       
  1156 	final public function get_header_dimensions( $dimensions ) {
       
  1157 		$max_width       = 0;
       
  1158 		$width           = absint( $dimensions['width'] );
       
  1159 		$height          = absint( $dimensions['height'] );
       
  1160 		$theme_height    = get_theme_support( 'custom-header', 'height' );
       
  1161 		$theme_width     = get_theme_support( 'custom-header', 'width' );
       
  1162 		$has_flex_width  = current_theme_supports( 'custom-header', 'flex-width' );
       
  1163 		$has_flex_height = current_theme_supports( 'custom-header', 'flex-height' );
       
  1164 		$has_max_width   = current_theme_supports( 'custom-header', 'max-width' );
       
  1165 		$dst             = array(
       
  1166 			'dst_height' => null,
       
  1167 			'dst_width'  => null,
       
  1168 		);
       
  1169 
       
  1170 		// For flex, limit size of image displayed to 1500px unless theme says otherwise
       
  1171 		if ( $has_flex_width ) {
       
  1172 			$max_width = 1500;
       
  1173 		}
       
  1174 
       
  1175 		if ( $has_max_width ) {
       
  1176 			$max_width = max( $max_width, get_theme_support( 'custom-header', 'max-width' ) );
       
  1177 		}
       
  1178 		$max_width = max( $max_width, $theme_width );
       
  1179 
       
  1180 		if ( $has_flex_height && ( ! $has_flex_width || $width > $max_width ) ) {
       
  1181 			$dst['dst_height'] = absint( $height * ( $max_width / $width ) );
       
  1182 		} elseif ( $has_flex_height && $has_flex_width ) {
       
  1183 			$dst['dst_height'] = $height;
       
  1184 		} else {
       
  1185 			$dst['dst_height'] = $theme_height;
       
  1186 		}
       
  1187 
       
  1188 		if ( $has_flex_width && ( ! $has_flex_height || $width > $max_width ) ) {
       
  1189 			$dst['dst_width'] = absint( $width * ( $max_width / $width ) );
       
  1190 		} elseif ( $has_flex_width && $has_flex_height ) {
       
  1191 			$dst['dst_width'] = $width;
       
  1192 		} else {
       
  1193 			$dst['dst_width'] = $theme_width;
       
  1194 		}
       
  1195 
       
  1196 		return $dst;
       
  1197 	}
       
  1198 
       
  1199 	/**
       
  1200 	 * Create an attachment 'object'.
       
  1201 	 *
       
  1202 	 * @since 3.9.0
       
  1203 	 *
       
  1204 	 * @param string $cropped              Cropped image URL.
       
  1205 	 * @param int    $parent_attachment_id Attachment ID of parent image.
       
  1206 	 * @return array Attachment object.
       
  1207 	 */
       
  1208 	final public function create_attachment_object( $cropped, $parent_attachment_id ) {
       
  1209 		$parent     = get_post( $parent_attachment_id );
       
  1210 		$parent_url = wp_get_attachment_url( $parent->ID );
       
  1211 		$url        = str_replace( wp_basename( $parent_url ), wp_basename( $cropped ), $parent_url );
       
  1212 
       
  1213 		$size       = @getimagesize( $cropped );
       
  1214 		$image_type = ( $size ) ? $size['mime'] : 'image/jpeg';
       
  1215 
       
  1216 		$object = array(
       
  1217 			'ID'             => $parent_attachment_id,
       
  1218 			'post_title'     => wp_basename( $cropped ),
       
  1219 			'post_mime_type' => $image_type,
       
  1220 			'guid'           => $url,
       
  1221 			'context'        => 'custom-header',
       
  1222 			'post_parent'    => $parent_attachment_id,
       
  1223 		);
       
  1224 
       
  1225 		return $object;
       
  1226 	}
       
  1227 
       
  1228 	/**
       
  1229 	 * Insert an attachment and its metadata.
       
  1230 	 *
       
  1231 	 * @since 3.9.0
       
  1232 	 *
       
  1233 	 * @param array  $object  Attachment object.
       
  1234 	 * @param string $cropped Cropped image URL.
       
  1235 	 * @return int Attachment ID.
       
  1236 	 */
       
  1237 	final public function insert_attachment( $object, $cropped ) {
       
  1238 		$parent_id = isset( $object['post_parent'] ) ? $object['post_parent'] : null;
       
  1239 		unset( $object['post_parent'] );
       
  1240 
       
  1241 		$attachment_id = wp_insert_attachment( $object, $cropped );
       
  1242 		$metadata      = wp_generate_attachment_metadata( $attachment_id, $cropped );
       
  1243 
       
  1244 		// If this is a crop, save the original attachment ID as metadata.
       
  1245 		if ( $parent_id ) {
       
  1246 			$metadata['attachment_parent'] = $parent_id;
       
  1247 		}
       
  1248 
       
  1249 		/**
       
  1250 		 * Filters the header image attachment metadata.
       
  1251 		 *
       
  1252 		 * @since 3.9.0
       
  1253 		 *
       
  1254 		 * @see wp_generate_attachment_metadata()
       
  1255 		 *
       
  1256 		 * @param array $metadata Attachment metadata.
       
  1257 		 */
       
  1258 		$metadata = apply_filters( 'wp_header_image_attachment_metadata', $metadata );
       
  1259 
       
  1260 		wp_update_attachment_metadata( $attachment_id, $metadata );
       
  1261 
       
  1262 		return $attachment_id;
       
  1263 	}
       
  1264 
       
  1265 	/**
       
  1266 	 * Gets attachment uploaded by Media Manager, crops it, then saves it as a
       
  1267 	 * new object. Returns JSON-encoded object details.
       
  1268 	 *
       
  1269 	 * @since 3.9.0
       
  1270 	 */
       
  1271 	public function ajax_header_crop() {
       
  1272 		check_ajax_referer( 'image_editor-' . $_POST['id'], 'nonce' );
       
  1273 
       
  1274 		if ( ! current_user_can( 'edit_theme_options' ) ) {
       
  1275 			wp_send_json_error();
       
  1276 		}
       
  1277 
       
  1278 		if ( ! current_theme_supports( 'custom-header', 'uploads' ) ) {
       
  1279 			wp_send_json_error();
       
  1280 		}
       
  1281 
       
  1282 		$crop_details = $_POST['cropDetails'];
       
  1283 
       
  1284 		$dimensions = $this->get_header_dimensions(
       
  1285 			array(
       
  1286 				'height' => $crop_details['height'],
       
  1287 				'width'  => $crop_details['width'],
       
  1288 			)
       
  1289 		);
       
  1290 
       
  1291 		$attachment_id = absint( $_POST['id'] );
       
  1292 
       
  1293 		$cropped = wp_crop_image(
       
  1294 			$attachment_id,
       
  1295 			(int) $crop_details['x1'],
       
  1296 			(int) $crop_details['y1'],
       
  1297 			(int) $crop_details['width'],
       
  1298 			(int) $crop_details['height'],
       
  1299 			(int) $dimensions['dst_width'],
       
  1300 			(int) $dimensions['dst_height']
       
  1301 		);
       
  1302 
       
  1303 		if ( ! $cropped || is_wp_error( $cropped ) ) {
       
  1304 			wp_send_json_error( array( 'message' => __( 'Image could not be processed. Please go back and try again.' ) ) );
       
  1305 		}
       
  1306 
       
  1307 		/** This filter is documented in wp-admin/custom-header.php */
       
  1308 		$cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication
       
  1309 
       
  1310 		$object = $this->create_attachment_object( $cropped, $attachment_id );
       
  1311 
       
  1312 		$previous = $this->get_previous_crop( $object );
       
  1313 
       
  1314 		if ( $previous ) {
       
  1315 			$object['ID'] = $previous;
       
  1316 		} else {
       
  1317 			unset( $object['ID'] );
       
  1318 		}
       
  1319 
       
  1320 		$new_attachment_id = $this->insert_attachment( $object, $cropped );
       
  1321 
       
  1322 		$object['attachment_id'] = $new_attachment_id;
       
  1323 		$object['url']           = wp_get_attachment_url( $new_attachment_id );
       
  1324 
       
  1325 		$object['width']  = $dimensions['dst_width'];
       
  1326 		$object['height'] = $dimensions['dst_height'];
       
  1327 
       
  1328 		wp_send_json_success( $object );
       
  1329 	}
       
  1330 
       
  1331 	/**
       
  1332 	 * Given an attachment ID for a header image, updates its "last used"
       
  1333 	 * timestamp to now.
       
  1334 	 *
       
  1335 	 * Triggered when the user tries adds a new header image from the
       
  1336 	 * Media Manager, even if s/he doesn't save that change.
       
  1337 	 *
       
  1338 	 * @since 3.9.0
       
  1339 	 */
       
  1340 	public function ajax_header_add() {
       
  1341 		check_ajax_referer( 'header-add', 'nonce' );
       
  1342 
       
  1343 		if ( ! current_user_can( 'edit_theme_options' ) ) {
       
  1344 			wp_send_json_error();
       
  1345 		}
       
  1346 
       
  1347 		$attachment_id = absint( $_POST['attachment_id'] );
       
  1348 		if ( $attachment_id < 1 ) {
       
  1349 			wp_send_json_error();
       
  1350 		}
       
  1351 
       
  1352 		$key = '_wp_attachment_custom_header_last_used_' . get_stylesheet();
       
  1353 		update_post_meta( $attachment_id, $key, time() );
       
  1354 		update_post_meta( $attachment_id, '_wp_attachment_is_custom_header', get_stylesheet() );
       
  1355 
       
  1356 		wp_send_json_success();
       
  1357 	}
       
  1358 
       
  1359 	/**
       
  1360 	 * Given an attachment ID for a header image, unsets it as a user-uploaded
       
  1361 	 * header image for the current theme.
       
  1362 	 *
       
  1363 	 * Triggered when the user clicks the overlay "X" button next to each image
       
  1364 	 * choice in the Customizer's Header tool.
       
  1365 	 *
       
  1366 	 * @since 3.9.0
       
  1367 	 */
       
  1368 	public function ajax_header_remove() {
       
  1369 		check_ajax_referer( 'header-remove', 'nonce' );
       
  1370 
       
  1371 		if ( ! current_user_can( 'edit_theme_options' ) ) {
       
  1372 			wp_send_json_error();
       
  1373 		}
       
  1374 
       
  1375 		$attachment_id = absint( $_POST['attachment_id'] );
       
  1376 		if ( $attachment_id < 1 ) {
       
  1377 			wp_send_json_error();
       
  1378 		}
       
  1379 
       
  1380 		$key = '_wp_attachment_custom_header_last_used_' . get_stylesheet();
       
  1381 		delete_post_meta( $attachment_id, $key );
       
  1382 		delete_post_meta( $attachment_id, '_wp_attachment_is_custom_header', get_stylesheet() );
       
  1383 
       
  1384 		wp_send_json_success();
       
  1385 	}
       
  1386 
       
  1387 	/**
       
  1388 	 * Updates the last-used postmeta on a header image attachment after saving a new header image via the Customizer.
       
  1389 	 *
       
  1390 	 * @since 3.9.0
       
  1391 	 *
       
  1392 	 * @param WP_Customize_Manager $wp_customize Customize manager.
       
  1393 	 */
       
  1394 	public function customize_set_last_used( $wp_customize ) {
       
  1395 
       
  1396 		$header_image_data_setting = $wp_customize->get_setting( 'header_image_data' );
       
  1397 		if ( ! $header_image_data_setting ) {
       
  1398 			return;
       
  1399 		}
       
  1400 		$data = $header_image_data_setting->post_value();
       
  1401 
       
  1402 		if ( ! isset( $data['attachment_id'] ) ) {
       
  1403 			return;
       
  1404 		}
       
  1405 
       
  1406 		$attachment_id = $data['attachment_id'];
       
  1407 		$key           = '_wp_attachment_custom_header_last_used_' . get_stylesheet();
       
  1408 		update_post_meta( $attachment_id, $key, time() );
       
  1409 	}
       
  1410 
       
  1411 	/**
       
  1412 	 * Gets the details of default header images if defined.
       
  1413 	 *
       
  1414 	 * @since 3.9.0
       
  1415 	 *
       
  1416 	 * @return array Default header images.
       
  1417 	 */
       
  1418 	public function get_default_header_images() {
       
  1419 		$this->process_default_headers();
       
  1420 
       
  1421 		// Get the default image if there is one.
       
  1422 		$default = get_theme_support( 'custom-header', 'default-image' );
       
  1423 
       
  1424 		if ( ! $default ) { // If not,
       
  1425 			return $this->default_headers; // easy peasy.
       
  1426 		}
       
  1427 
       
  1428 		$default             = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() );
       
  1429 		$already_has_default = false;
       
  1430 
       
  1431 		foreach ( $this->default_headers as $k => $h ) {
       
  1432 			if ( $h['url'] === $default ) {
       
  1433 				$already_has_default = true;
       
  1434 				break;
       
  1435 			}
       
  1436 		}
       
  1437 
       
  1438 		if ( $already_has_default ) {
       
  1439 			return $this->default_headers;
       
  1440 		}
       
  1441 
       
  1442 		// If the one true image isn't included in the default set, prepend it.
       
  1443 		$header_images            = array();
       
  1444 		$header_images['default'] = array(
       
  1445 			'url'           => $default,
       
  1446 			'thumbnail_url' => $default,
       
  1447 			'description'   => 'Default',
       
  1448 		);
       
  1449 
       
  1450 		// The rest of the set comes after.
       
  1451 		return array_merge( $header_images, $this->default_headers );
       
  1452 	}
       
  1453 
       
  1454 	/**
       
  1455 	 * Gets the previously uploaded header images.
       
  1456 	 *
       
  1457 	 * @since 3.9.0
       
  1458 	 *
       
  1459 	 * @return array Uploaded header images.
       
  1460 	 */
       
  1461 	public function get_uploaded_header_images() {
       
  1462 		$header_images = get_uploaded_header_images();
       
  1463 		$timestamp_key = '_wp_attachment_custom_header_last_used_' . get_stylesheet();
       
  1464 		$alt_text_key  = '_wp_attachment_image_alt';
       
  1465 
       
  1466 		foreach ( $header_images as &$header_image ) {
       
  1467 			$header_meta               = get_post_meta( $header_image['attachment_id'] );
       
  1468 			$header_image['timestamp'] = isset( $header_meta[ $timestamp_key ] ) ? $header_meta[ $timestamp_key ] : '';
       
  1469 			$header_image['alt_text']  = isset( $header_meta[ $alt_text_key ] ) ? $header_meta[ $alt_text_key ] : '';
       
  1470 		}
       
  1471 
       
  1472 		return $header_images;
       
  1473 	}
       
  1474 
       
  1475 	/**
       
  1476 	 * Get the ID of a previous crop from the same base image.
       
  1477 	 *
       
  1478 	 * @since 4.9.0
       
  1479 	 *
       
  1480 	 * @param  array $object A crop attachment object.
       
  1481 	 * @return int|false An attachment ID if one exists. False if none.
       
  1482 	 */
       
  1483 	public function get_previous_crop( $object ) {
       
  1484 		$header_images = $this->get_uploaded_header_images();
       
  1485 
       
  1486 		// Bail early if there are no header images.
       
  1487 		if ( empty( $header_images ) ) {
       
  1488 			return false;
       
  1489 		}
       
  1490 
       
  1491 		$previous = false;
       
  1492 
       
  1493 		foreach ( $header_images as $image ) {
       
  1494 			if ( $image['attachment_parent'] === $object['post_parent'] ) {
       
  1495 				$previous = $image['attachment_id'];
       
  1496 				break;
       
  1497 			}
       
  1498 		}
       
  1499 
       
  1500 		return $previous;
       
  1501 	}
       
  1502 }