wp-admin/custom-header.php

   1 <?php
   2 /**
   3  * The custom header image script.
   4  *
   5  * @package WordPress
   6  * @subpackage Administration
   7  */
   8
   9 /**
  10  * The custom header image class.
  11  *
  12  * @since unknown
  13  * @package WordPress
  14  * @subpackage Administration
  15  */
  16 class Custom_Image_Header {
  17
  18         /**
  19          * Callback for administration header.
  20          *
  21          * @var callback
  22          * @since unknown
  23          * @access private
  24          */
  25         var $admin_header_callback;
  26
  27         /**
  28          * PHP4 Constructor - Register administration header callback.
  29          *
  30          * @since unknown
  31          * @param callback $admin_header_callback
  32          * @return Custom_Image_Header
  33          */
  34         function Custom_Image_Header($admin_header_callback) {
  35                 $this->admin_header_callback = $admin_header_callback;
  36         }
  37
  38         /**
  39          * Setup the hooks for the Custom Header admin page.
  40          *
  41          * @since unknown
  42          */
  43         function init() {
  44                 $page = add_theme_page(__('Custom Image Header'), __('Custom Image Header'), 'edit_themes', 'custom-header', array(&$this, 'admin_page'));
  45
  46                 add_action("admin_print_scripts-$page", array(&$this, 'js_includes'));
  47                 add_action("admin_print_styles-$page", array(&$this, 'css_includes'));
  48                 add_action("admin_head-$page", array(&$this, 'take_action'), 50);
  49                 add_action("admin_head-$page", array(&$this, 'js'), 50);
  50                 add_action("admin_head-$page", $this->admin_header_callback, 51);
  51         }
  52
  53         /**
  54          * Get the current step.
  55          *
  56          * @since unknown
  57          *
  58          * @return int Current step
  59          */
  60         function step() {
  61                 if ( ! isset( $_GET['step'] ) )
  62                         return 1;
  63
  64                 $step = (int) $_GET['step'];
  65                 if ( $step < 1 || 3 < $step )
  66                         $step = 1;
  67
  68                 return $step;
  69         }
  70
  71         /**
  72          * Setup the enqueue for the JavaScript files.
  73          *
  74          * @since unknown
  75          */
  76         function js_includes() {
  77                 $step = $this->step();
  78
  79                 if ( 1 == $step )
  80                         wp_enqueue_script('farbtastic');
  81                 elseif ( 2 == $step )
  82                         wp_enqueue_script('cropper');
  83         }
  84
  85         /**
  86          * Setup the enqueue for the CSS files
  87          *
  88          * @since 2.7
  89          */
  90         function css_includes() {
  91                 $step = $this->step();
  92
  93                 if ( 1 == $step ) {
  94                         wp_enqueue_style('farbtastic');
  95                 }
  96         }
  97
  98         /**
  99          * Execute custom header modification.
 100          *
 101          * @since unknown
 102          */
 103         function take_action() {
 104                 if ( isset( $_POST['textcolor'] ) ) {
 105                         check_admin_referer('custom-header');
 106                         if ( 'blank' == $_POST['textcolor'] ) {
 107                                 set_theme_mod('header_textcolor', 'blank');
 108                         } else {
 109                                 $color = preg_replace('/[^0-9a-fA-F]/', '', $_POST['textcolor']);
 110                                 if ( strlen($color) == 6 || strlen($color) == 3 )
 111                                         set_theme_mod('header_textcolor', $color);
 112                         }
 113                 }
 114                 if ( isset($_POST['resetheader']) ) {
 115                         check_admin_referer('custom-header');
 116                         remove_theme_mods();
 117                 }
 118         }
 119
 120         /**
 121          * Execute Javascript depending on step.
 122          *
 123          * @since unknown
 124          */
 125         function js() {
 126                 $step = $this->step();
 127                 if ( 1 == $step )
 128                         $this->js_1();
 129                 elseif ( 2 == $step )
 130                         $this->js_2();
 131         }
 132
 133         /**
 134          * Display Javascript based on Step 1.
 135          *
 136          * @since unknown
 137          */
 138         function js_1() { ?>
 139 <script type="text/javascript">
 140         var buttons = ['#name', '#desc', '#pickcolor', '#defaultcolor'];
 141         var farbtastic;
 142
 143         function pickColor(color) {
 144                 jQuery('#name').css('color', color);
 145                 jQuery('#desc').css('color', color);
 146                 jQuery('#textcolor').val(color);
 147                 farbtastic.setColor(color);
 148         }
 149
 150         jQuery(document).ready(function() {
 151                 jQuery('#pickcolor').click(function() {
 152                         jQuery('#colorPickerDiv').show();
 153                 });
 154
 155                 jQuery('#hidetext').click(function() {
 156                         toggle_text();
 157                 });
 158
 159                 farbtastic = jQuery.farbtastic('#colorPickerDiv', function(color) { pickColor(color); });
 160                 pickColor('#<?php echo get_theme_mod('header_textcolor', HEADER_TEXTCOLOR); ?>');
 161
 162                 <?php if ( 'blank' == get_theme_mod('header_textcolor', HEADER_TEXTCOLOR) ) { ?>
 163                 toggle_text();
 164                 <?php } ?>
 165         });
 166
 167         jQuery(document).mousedown(function(){
 168                 // Make the picker disappear, since we're using it in an independant div
 169                 hide_picker();
 170         });
 171
 172         function colorDefault() {
 173                 pickColor('#<?php echo HEADER_TEXTCOLOR; ?>');
 174         }
 175
 176         function hide_picker(what) {
 177                 var update = false;
 178                 jQuery('#colorPickerDiv').each(function(){
 179                         var id = jQuery(this).attr('id');
 180                         if (id == what) {
 181                                 return;
 182                         }
 183                         var display = jQuery(this).css('display');
 184                         if (display == 'block') {
 185                                 jQuery(this).fadeOut(2);
 186                         }
 187                 });
 188         }
 189
 190         function toggle_text(force) {
 191                 if(jQuery('#textcolor').val() == 'blank') {
 192                         //Show text
 193                         jQuery( buttons.toString() ).show();
 194                         jQuery('#textcolor').val('<?php echo HEADER_TEXTCOLOR; ?>');
 195                         jQuery('#hidetext').val('<?php _e('Hide Text'); ?>');
 196                 }
 197                 else {
 198                         //Hide text
 199                         jQuery( buttons.toString() ).hide();
 200                         jQuery('#textcolor').val('blank');
 201                         jQuery('#hidetext').val('<?php _e('Show Text'); ?>');
 202                 }
 203         }
 204
 205
 206
 207 </script>
 208 <?php
 209         }
 210
 211         /**
 212          * Display Javascript based on Step 2.
 213          *
 214          * @since unknown
 215          */
 216         function js_2() { ?>
 217 <script type="text/javascript">
 218         function onEndCrop( coords, dimensions ) {
 219                 jQuery( '#x1' ).val(coords.x1);
 220                 jQuery( '#y1' ).val(coords.y1);
 221                 jQuery( '#x2' ).val(coords.x2);
 222                 jQuery( '#y2' ).val(coords.y2);
 223                 jQuery( '#width' ).val(dimensions.width);
 224                 jQuery( '#height' ).val(dimensions.height);
 225         }
 226
 227         // with a supplied ratio
 228         jQuery(document).ready(function() {
 229                 var xinit = <?php echo HEADER_IMAGE_WIDTH; ?>;
 230                 var yinit = <?php echo HEADER_IMAGE_HEIGHT; ?>;
 231                 var ratio = xinit / yinit;
 232                 var ximg = jQuery('#upload').width();
 233                 var yimg = jQuery('#upload').height();
 234                 if ( yimg < yinit || ximg < xinit ) {
 235                         if ( ximg / yimg > ratio ) {
 236                                 yinit = yimg;
 237                                 xinit = yinit * ratio;
 238                         } else {
 239                                 xinit = ximg;
 240                                 yinit = xinit / ratio;
 241                         }
 242                 }
 243                 new Cropper.Img(
 244                         'upload',
 245                         {
 246                                 ratioDim: { x: xinit, y: yinit },
 247                                 displayOnInit: true,
 248                                 onEndCrop: onEndCrop
 249                         }
 250                 )
 251         });
 252 </script>
 253 <?php
 254         }
 255
 256         /**
 257          * Display first step of custom header image page.
 258          *
 259          * @since unknown
 260          */
 261         function step_1() {
 262                 if ( $_GET['updated'] ) { ?>
 263 <div id="message" class="updated fade">
 264 <p><?php _e('Header updated.') ?></p>
 265 </div>
 266                 <?php } ?>
 267
 268 <div class="wrap">
 269 <?php screen_icon(); ?>
 270 <h2><?php _e('Your Header Image'); ?></h2>
 271 <p><?php _e('This is your header image. You can change the text color or upload and crop a new image.'); ?></p>
 272
 273 <div id="headimg" style="background-image: url(<?php clean_url(header_image()) ?>);">
 274 <h1><a onclick="return false;" href="<?php bloginfo('url'); ?>" title="<?php bloginfo('name'); ?>" id="name"><?php bloginfo('name'); ?></a></h1>
 275 <div id="desc"><?php bloginfo('description');?></div>
 276 </div>
 277 <?php if ( !defined( 'NO_HEADER_TEXT' ) ) { ?>
 278 <form method="post" action="<?php echo admin_url('themes.php?page=custom-header&amp;updated=true') ?>">
 279 <input type="button" value="<?php _e('Hide Text'); ?>" onclick="hide_text()" id="hidetext" />
 280 <input type="button" value="<?php _e('Select a Text Color'); ?>" id="pickcolor" /><input type="button" value="<?php _e('Use Original Color'); ?>" onclick="colorDefault()" id="defaultcolor" />
 281 <?php wp_nonce_field('custom-header') ?>
 282 <input type="hidden" name="textcolor" id="textcolor" value="#<?php attribute_escape(header_textcolor()) ?>" /><input name="submit" type="submit" value="<?php _e('Save Changes'); ?>" /></form>
 283 <?php } ?>
 284
 285 <div id="colorPickerDiv" style="z-index: 100;background:#eee;border:1px solid #ccc;position:absolute;display:none;"> </div>
 286 </div>
 287 <div class="wrap">
 288 <h2><?php _e('Upload New Header Image'); ?></h2><p><?php _e('Here you can upload a custom header image to be shown at the top of your blog instead of the default one. On the next screen you will be able to crop the image.'); ?></p>
 289 <p><?php printf(__('Images of exactly <strong>%1$d x %2$d pixels</strong> will be used as-is.'), HEADER_IMAGE_WIDTH, HEADER_IMAGE_HEIGHT); ?></p>
 290
 291 <form enctype="multipart/form-data" id="uploadForm" method="POST" action="<?php echo attribute_escape(add_query_arg('step', 2)) ?>" style="margin: auto; width: 50%;">
 292 <label for="upload"><?php _e('Choose an image from your computer:'); ?></label><br /><input type="file" id="upload" name="import" />
 293 <input type="hidden" name="action" value="save" />
 294 <?php wp_nonce_field('custom-header') ?>
 295 <p class="submit">
 296 <input type="submit" value="<?php _e('Upload'); ?>" />
 297 </p>
 298 </form>
 299
 300 </div>
 301
 302                 <?php if ( get_theme_mod('header_image') || get_theme_mod('header_textcolor') ) : ?>
 303 <div class="wrap">
 304 <h2><?php _e('Reset Header Image and Color'); ?></h2>
 305 <p><?php _e('This will restore the original header image and color. You will not be able to retrieve any customizations.') ?></p>
 306 <form method="post" action="<?php echo attribute_escape(add_query_arg('step', 1)) ?>">
 307 <?php wp_nonce_field('custom-header'); ?>
 308 <input type="submit" name="resetheader" value="<?php _e('Restore Original Header'); ?>" />
 309 </form>
 310 </div>
 311                 <?php endif;
 312
 313         }
 314
 315         /**
 316          * Display second step of custom header image page.
 317          *
 318          * @since unknown
 319          */
 320         function step_2() {
 321                 check_admin_referer('custom-header');
 322                 $overrides = array('test_form' => false);
 323                 $file = wp_handle_upload($_FILES['import'], $overrides);
 324
 325                 if ( isset($file['error']) )
 326                 die( $file['error'] );
 327
 328                 $url = $file['url'];
 329                 $type = $file['type'];
 330                 $file = $file['file'];
 331                 $filename = basename($file);
 332
 333                 // Construct the object array
 334                 $object = array(
 335                 'post_title' => $filename,
 336                 'post_content' => $url,
 337                 'post_mime_type' => $type,
 338                 'guid' => $url);
 339
 340                 // Save the data
 341                 $id = wp_insert_attachment($object, $file);
 342
 343                 list($width, $height, $type, $attr) = getimagesize( $file );
 344
 345                 if ( $width == HEADER_IMAGE_WIDTH && $height == HEADER_IMAGE_HEIGHT ) {
 346                         // Add the meta-data
 347                         wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
 348
 349                         set_theme_mod('header_image', clean_url($url));
 350                         do_action('wp_create_file_in_uploads', $file, $id); // For replication
 351                         return $this->finished();
 352                 } elseif ( $width > HEADER_IMAGE_WIDTH ) {
 353                         $oitar = $width / HEADER_IMAGE_WIDTH;
 354                         $image = wp_crop_image($file, 0, 0, $width, $height, HEADER_IMAGE_WIDTH, $height / $oitar, false, str_replace(basename($file), 'midsize-'.basename($file), $file));
 355                         $image = apply_filters('wp_create_file_in_uploads', $image, $id); // For replication
 356
 357                         $url = str_replace(basename($url), basename($image), $url);
 358                         $width = $width / $oitar;
 359                         $height = $height / $oitar;
 360                 } else {
 361                         $oitar = 1;
 362                 }
 363                 ?>
 364
 365 <div class="wrap">
 366
 367 <form method="POST" action="<?php echo attribute_escape(add_query_arg('step', 3)) ?>">
 368
 369 <p><?php _e('Choose the part of the image you want to use as your header.'); ?></p>
 370 <div id="testWrap" style="position: relative">
 371 <img src="<?php echo $url; ?>" id="upload" width="<?php echo $width; ?>" height="<?php echo $height; ?>" />
 372 </div>
 373
 374 <p class="submit">
 375 <input type="hidden" name="x1" id="x1" />
 376 <input type="hidden" name="y1" id="y1" />
 377 <input type="hidden" name="x2" id="x2" />
 378 <input type="hidden" name="y2" id="y2" />
 379 <input type="hidden" name="width" id="width" />
 380 <input type="hidden" name="height" id="height" />
 381 <input type="hidden" name="attachment_id" id="attachment_id" value="<?php echo $id; ?>" />
 382 <input type="hidden" name="oitar" id="oitar" value="<?php echo $oitar; ?>" />
 383 <?php wp_nonce_field('custom-header') ?>
 384 <input type="submit" value="<?php _e('Crop Header'); ?>" />
 385 </p>
 386
 387 </form>
 388 </div>
 389                 <?php
 390         }
 391
 392         /**
 393          * Display third step of custom header image page.
 394          *
 395          * @since unknown
 396          */
 397         function step_3() {
 398                 check_admin_referer('custom-header');
 399                 if ( $_POST['oitar'] > 1 ) {
 400                         $_POST['x1'] = $_POST['x1'] * $_POST['oitar'];
 401                         $_POST['y1'] = $_POST['y1'] * $_POST['oitar'];
 402                         $_POST['width'] = $_POST['width'] * $_POST['oitar'];
 403                         $_POST['height'] = $_POST['height'] * $_POST['oitar'];
 404                 }
 405
 406                 $original = get_attached_file( $_POST['attachment_id'] );
 407
 408                 $cropped = wp_crop_image($_POST['attachment_id'], $_POST['x1'], $_POST['y1'], $_POST['width'], $_POST['height'], HEADER_IMAGE_WIDTH, HEADER_IMAGE_HEIGHT);
 409                 $cropped = apply_filters('wp_create_file_in_uploads', $cropped, $_POST['attachment_id']); // For replication
 410
 411                 $parent = get_post($_POST['attachment_id']);
 412                 $parent_url = $parent->guid;
 413                 $url = str_replace(basename($parent_url), basename($cropped), $parent_url);
 414
 415                 // Construct the object array
 416                 $object = array(
 417                         'ID' => $_POST['attachment_id'],
 418                         'post_title' => basename($cropped),
 419                         'post_content' => $url,
 420                         'post_mime_type' => 'image/jpeg',
 421                         'guid' => $url
 422                 );
 423
 424                 // Update the attachment
 425                 wp_insert_attachment($object, $cropped);
 426                 wp_update_attachment_metadata( $_POST['attachment_id'], wp_generate_attachment_metadata( $_POST['attachment_id'], $cropped ) );
 427
 428                 set_theme_mod('header_image', $url);
 429
 430                 // cleanup
 431                 $medium = str_replace(basename($original), 'midsize-'.basename($original), $original);
 432                 @unlink( apply_filters( 'wp_delete_file', $medium ) );
 433                 @unlink( apply_filters( 'wp_delete_file', $original ) );
 434
 435                 return $this->finished();
 436         }
 437
 438         /**
 439          * Display last step of custom header image page.
 440          *
 441          * @since unknown
 442          */
 443         function finished() {
 444                 ?>
 445 <div class="wrap">
 446 <h2><?php _e('Header complete!'); ?></h2>
 447
 448 <p><?php _e('Visit your site and you should see the new header now.'); ?></p>
 449
 450 </div>
 451                 <?php
 452         }
 453
 454         /**
 455          * Display the page based on the current step.
 456          *
 457          * @since unknown
 458          */
 459         function admin_page() {
 460                 $step = $this->step();
 461                 if ( 1 == $step )
 462                         $this->step_1();
 463                 elseif ( 2 == $step )
 464                         $this->step_2();
 465                 elseif ( 3 == $step )
 466                         $this->step_3();
 467         }
 468
 469 }
 470 ?>