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