wp-admin/custom-header.php

   1 <?php
   2
   3 class Custom_Image_Header {
   4         var $admin_header_callback;
   5
   6         function Custom_Image_Header($admin_header_callback) {
   7                 $this->admin_header_callback = $admin_header_callback;
   8         }
   9
  10         function init() {
  11                 $page = add_theme_page(__('Custom Image Header'), __('Custom Image Header'), 'edit_themes', 'custom-header', array(&$this, 'admin_page'));
  12
  13                 add_action("admin_print_scripts-$page", array(&$this, 'js_includes'));
  14                 add_action("admin_head-$page", array(&$this, 'take_action'), 50);
  15                 add_action("admin_head-$page", array(&$this, 'js'), 50);
  16                 add_action("admin_head-$page", $this->admin_header_callback, 51);
  17         }
  18
  19         function step() {
  20                 $step = (int) @$_GET['step'];
  21                 if ( $step < 1 || 3 < $step )
  22                         $step = 1;
  23                 return $step;
  24         }
  25
  26         function js_includes() {
  27                 $step = $this->step();
  28                 if ( 1 == $step )
  29                         wp_enqueue_script('colorpicker');
  30                 elseif ( 2 == $step )
  31                         wp_enqueue_script('cropper');
  32         }
  33
  34         function take_action() {
  35                 if ( isset( $_POST['textcolor'] ) ) {
  36                         check_admin_referer('custom-header');
  37                         if ( 'blank' == $_POST['textcolor'] ) {
  38                                 set_theme_mod('header_textcolor', 'blank');
  39                         } else {
  40                                 $color = preg_replace('/[^0-9a-fA-F]/', '', $_POST['textcolor']);
  41                                 if ( strlen($color) == 6 || strlen($color) == 3 )
  42                                         set_theme_mod('header_textcolor', $color);
  43                         }
  44                 }
  45                 if ( isset($_POST['resetheader']) ) {
  46                         check_admin_referer('custom-header');
  47                         remove_theme_mods();
  48                 }
  49         }
  50
  51         function js() {
  52                 $step = $this->step();
  53                 if ( 1 == $step )
  54                         $this->js_1();
  55                 elseif ( 2 == $step )
  56                         $this->js_2();
  57         }
  58
  59         function js_1() { ?>
  60 <script type="text/javascript">
  61         var cp = new ColorPicker();
  62
  63         function pickColor(color) {
  64                 $('name').style.color = color;
  65                 $('desc').style.color = color;
  66                 $('textcolor').value = color;
  67         }
  68         function PopupWindow_hidePopup(magicword) {
  69                 if ( magicword != 'prettyplease' )
  70                         return false;
  71                 if (this.divName != null) {
  72                         if (this.use_gebi) {
  73                                 document.getElementById(this.divName).style.visibility = "hidden";
  74                         }
  75                         else if (this.use_css) {
  76                                 document.all[this.divName].style.visibility = "hidden";
  77                         }
  78                         else if (this.use_layers) {
  79                                 document.layers[this.divName].visibility = "hidden";
  80                         }
  81                 }
  82                 else {
  83                         if (this.popupWindow && !this.popupWindow.closed) {
  84                                 this.popupWindow.close();
  85                                 this.popupWindow = null;
  86                         }
  87                 }
  88                 return false;
  89         }
  90         function colorSelect(t,p) {
  91                 if ( cp.p == p && document.getElementById(cp.divName).style.visibility != "hidden" ) {
  92                         cp.hidePopup('prettyplease');
  93                 } else {
  94                         cp.p = p;
  95                         cp.select(t,p);
  96                 }
  97         }
  98         function colorDefault() {
  99                 pickColor('#<?php echo HEADER_TEXTCOLOR; ?>');
 100         }
 101
 102         function hide_text() {
 103                 $('name').style.display = 'none';
 104                 $('desc').style.display = 'none';
 105                 $('pickcolor').style.display = 'none';
 106                 $('defaultcolor').style.display = 'none';
 107                 $('textcolor').value = 'blank';
 108                 $('hidetext').value = '<?php _e('Show Text'); ?>';
 109 //              $('hidetext').onclick = 'show_text()';
 110                 Event.observe( $('hidetext'), 'click', show_text );
 111         }
 112
 113         function show_text() {
 114                 $('name').style.display = 'block';
 115                 $('desc').style.display = 'block';
 116                 $('pickcolor').style.display = 'inline';
 117                 $('defaultcolor').style.display = 'inline';
 118                 $('textcolor').value = '<?php echo HEADER_TEXTCOLOR; ?>';
 119                 $('hidetext').value = '<?php _e('Hide Text'); ?>';
 120                 Event.stopObserving( $('hidetext'), 'click', show_text );
 121                 Event.observe( $('hidetext'), 'click', hide_text );
 122         }
 123
 124         <?php if ( 'blank' == get_theme_mod('header_textcolor', HEADER_TEXTCOLOR) ) { ?>
 125 Event.observe( window, 'load', hide_text );
 126         <?php } ?>
 127
 128 </script>
 129 <?php
 130         }
 131
 132         function js_2() { ?>
 133 <script type="text/javascript">
 134         function onEndCrop( coords, dimensions ) {
 135                 $( 'x1' ).value = coords.x1;
 136                 $( 'y1' ).value = coords.y1;
 137                 $( 'x2' ).value = coords.x2;
 138                 $( 'y2' ).value = coords.y2;
 139                 $( 'width' ).value = dimensions.width;
 140                 $( 'height' ).value = dimensions.height;
 141         }
 142
 143         // with a supplied ratio
 144         Event.observe(
 145                 window,
 146                 'load',
 147                 function() {
 148                         var xinit = <?php echo HEADER_IMAGE_WIDTH; ?>;
 149                         var yinit = <?php echo HEADER_IMAGE_HEIGHT; ?>;
 150                         var ratio = xinit / yinit;
 151                         var ximg = $('upload').width;
 152                         var yimg = $('upload').height;
 153                         if ( yimg < yinit || ximg < xinit ) {
 154                                 if ( ximg / yimg > ratio ) {
 155                                         yinit = yimg;
 156                                         xinit = yinit * ratio;
 157                                 } else {
 158                                         xinit = ximg;
 159                                         yinit = xinit / ratio;
 160                                 }
 161                         }
 162                         new Cropper.Img(
 163                                 'upload',
 164                                 {
 165                                         ratioDim: { x: xinit, y: yinit },
 166                                         displayOnInit: true,
 167                                         onEndCrop: onEndCrop
 168                                 }
 169                         )
 170                 }
 171         );
 172 </script>
 173 <?php
 174         }
 175
 176         function step_1() {
 177                 if ( $_GET['updated'] ) { ?>
 178 <div id="message" class="updated fade">
 179 <p><?php _e('Header updated.') ?></p>
 180 </div>
 181                 <?php } ?>
 182
 183 <div class="wrap">
 184 <h2><?php _e('Your Header Image'); ?></h2>
 185 <p><?php _e('This is your header image. You can change the text color or upload and crop a new image.'); ?></p>
 186
 187 <div id="headimg" style="background-image: url(<?php clean_url(header_image()) ?>);">
 188 <h1><a onclick="return false;" href="<?php bloginfo('url'); ?>" title="<?php bloginfo('name'); ?>" id="name"><?php bloginfo('name'); ?></a></h1>
 189 <div id="desc"><?php bloginfo('description');?></div>
 190 </div>
 191 <?php if ( !defined( 'NO_HEADER_TEXT' ) ) { ?>
 192 <form method="post" action="<?php echo get_option('siteurl') ?>/wp-admin/themes.php?page=custom-header&amp;updated=true">
 193 <input type="button" value="<?php _e('Hide Text'); ?>" onclick="hide_text()" id="hidetext" />
 194 <input type="button" value="<?php _e('Select a Text Color'); ?>" onclick="colorSelect($('textcolor'), 'pickcolor')" id="pickcolor" /><input type="button" value="<?php _e('Use Original Color'); ?>" onclick="colorDefault()" id="defaultcolor" />
 195 <?php wp_nonce_field('custom-header') ?>
 196 <input type="hidden" name="textcolor" id="textcolor" value="#<?php attribute_escape(header_textcolor()) ?>" /><input name="submit" type="submit" value="<?php _e('Save Changes'); ?>" /></form>
 197 <?php } ?>
 198
 199 <div id="colorPickerDiv" style="z-index: 100;background:#eee;border:1px solid #ccc;position:absolute;visibility:hidden;"> </div>
 200 </div>
 201 <div class="wrap">
 202 <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>
 203 <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>
 204
 205 <form enctype="multipart/form-data" id="uploadForm" method="POST" action="<?php echo attribute_escape(add_query_arg('step', 2)) ?>" style="margin: auto; width: 50%;">
 206 <label for="upload"><?php _e('Choose an image from your computer:'); ?></label><br /><input type="file" id="upload" name="import" />
 207 <input type="hidden" name="action" value="save" />
 208 <?php wp_nonce_field('custom-header') ?>
 209 <p class="submit">
 210 <input type="submit" value="<?php _e('Upload'); ?>" />
 211 </p>
 212 </form>
 213
 214 </div>
 215
 216                 <?php if ( get_theme_mod('header_image') || get_theme_mod('header_textcolor') ) : ?>
 217 <div class="wrap">
 218 <h2><?php _e('Reset Header Image and Color'); ?></h2>
 219 <p><?php _e('This will restore the original header image and color. You will not be able to retrieve any customizations.') ?></p>
 220 <form method="post" action="<?php echo attribute_escape(add_query_arg('step', 1)) ?>">
 221 <?php wp_nonce_field('custom-header'); ?>
 222 <input type="submit" name="resetheader" value="<?php _e('Restore Original Header'); ?>" />
 223 </form>
 224 </div>
 225                 <?php endif;
 226
 227         }
 228
 229         function step_2() {
 230                 check_admin_referer('custom-header');
 231                 $overrides = array('test_form' => false);
 232                 $file = wp_handle_upload($_FILES['import'], $overrides);
 233
 234                 if ( isset($file['error']) )
 235                 die( $file['error'] );
 236
 237                 $url = $file['url'];
 238                 $type = $file['type'];
 239                 $file = $file['file'];
 240                 $filename = basename($file);
 241
 242                 // Construct the object array
 243                 $object = array(
 244                 'post_title' => $filename,
 245                 'post_content' => $url,
 246                 'post_mime_type' => $type,
 247                 'guid' => $url);
 248
 249                 // Save the data
 250                 $id = wp_insert_attachment($object, $file);
 251
 252                 list($width, $height, $type, $attr) = getimagesize( $file );
 253
 254                 if ( $width == HEADER_IMAGE_WIDTH && $height == HEADER_IMAGE_HEIGHT ) {
 255                         // Add the meta-data
 256                         wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
 257
 258                         set_theme_mod('header_image', clean_url($url));
 259                         do_action('wp_create_file_in_uploads', $file, $id); // For replication
 260                         return $this->finished();
 261                 } elseif ( $width > HEADER_IMAGE_WIDTH ) {
 262                         $oitar = $width / HEADER_IMAGE_WIDTH;
 263                         $image = wp_crop_image($file, 0, 0, $width, $height, HEADER_IMAGE_WIDTH, $height / $oitar, false, str_replace(basename($file), 'midsize-'.basename($file), $file));
 264                         $image = apply_filters('wp_create_file_in_uploads', $image, $id); // For replication
 265
 266                         $url = str_replace(basename($url), basename($image), $url);
 267                         $width = $width / $oitar;
 268                         $height = $height / $oitar;
 269                 } else {
 270                         $oitar = 1;
 271                 }
 272                 ?>
 273
 274 <div class="wrap">
 275
 276 <form method="POST" action="<?php echo attribute_escape(add_query_arg('step', 3)) ?>">
 277
 278 <p><?php _e('Choose the part of the image you want to use as your header.'); ?></p>
 279 <div id="testWrap" style="position: relative">
 280 <img src="<?php echo $url; ?>" id="upload" width="<?php echo $width; ?>" height="<?php echo $height; ?>" />
 281 </div>
 282
 283 <p class="submit">
 284 <input type="hidden" name="x1" id="x1" />
 285 <input type="hidden" name="y1" id="y1" />
 286 <input type="hidden" name="x2" id="x2" />
 287 <input type="hidden" name="y2" id="y2" />
 288 <input type="hidden" name="width" id="width" />
 289 <input type="hidden" name="height" id="height" />
 290 <input type="hidden" name="attachment_id" id="attachment_id" value="<?php echo $id; ?>" />
 291 <input type="hidden" name="oitar" id="oitar" value="<?php echo $oitar; ?>" />
 292 <?php wp_nonce_field('custom-header') ?>
 293 <input type="submit" value="<?php _e('Crop Header'); ?>" />
 294 </p>
 295
 296 </form>
 297 </div>
 298                 <?php
 299         }
 300
 301         function step_3() {
 302                 check_admin_referer('custom-header');
 303                 if ( $_POST['oitar'] > 1 ) {
 304                         $_POST['x1'] = $_POST['x1'] * $_POST['oitar'];
 305                         $_POST['y1'] = $_POST['y1'] * $_POST['oitar'];
 306                         $_POST['width'] = $_POST['width'] * $_POST['oitar'];
 307                         $_POST['height'] = $_POST['height'] * $_POST['oitar'];
 308                 }
 309
 310                 $original = get_attached_file( $_POST['attachment_id'] );
 311
 312                 $cropped = wp_crop_image($_POST['attachment_id'], $_POST['x1'], $_POST['y1'], $_POST['width'], $_POST['height'], HEADER_IMAGE_WIDTH, HEADER_IMAGE_HEIGHT);
 313                 $cropped = apply_filters('wp_create_file_in_uploads', $cropped, $_POST['attachment_id']); // For replication
 314
 315                 $parent = get_post($_POST['attachment_id']);
 316                 $parent_url = $parent->guid;
 317                 $url = str_replace(basename($parent_url), basename($cropped), $parent_url);
 318
 319                 // Construct the object array
 320                 $object = array(
 321                         'ID' => $_POST['attachment_id'],
 322                         'post_title' => basename($cropped),
 323                         'post_content' => $url,
 324                         'post_mime_type' => 'image/jpeg',
 325                         'guid' => $url
 326                 );
 327
 328                 // Update the attachment
 329                 wp_insert_attachment($object, $cropped);
 330                 wp_update_attachment_metadata( $_POST['attachment_id'], wp_generate_attachment_metadata( $_POST['attachment_id'], $cropped ) );
 331
 332                 set_theme_mod('header_image', $url);
 333
 334                 // cleanup
 335                 $medium = str_replace(basename($original), 'midsize-'.basename($original), $original);
 336                 @unlink( apply_filters( 'wp_delete_file', $medium ) );
 337                 @unlink( apply_filters( 'wp_delete_file', $original ) );
 338
 339                 return $this->finished();
 340         }
 341
 342         function finished() {
 343                 ?>
 344 <div class="wrap">
 345 <h2><?php _e('Header complete!'); ?></h2>
 346
 347 <p><?php _e('Visit your site and you should see the new header now.'); ?></p>
 348
 349 </div>
 350                 <?php
 351         }
 352
 353         function admin_page() {
 354                 $step = $this->step();
 355                 if ( 1 == $step )
 356                         $this->step_1();
 357                 elseif ( 2 == $step )
 358                         $this->step_2();
 359                 elseif ( 3 == $step )
 360                         $this->step_3();
 361         }
 362
 363 }
 364 ?>