WordPress/wp-admin/custom-header.php

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<?php
/**
* The custom header image script.
*
* @package WordPress
* @subpackage Administration
*/
/**
* The custom header image class.
*
* @since unknown
* @package WordPress
* @subpackage Administration
*/
class Custom_Image_Header {
/**
* Callback for administration header.
*
* @var callback
* @since unknown
* @access private
*/
var $admin_header_callback;
/**
* PHP4 Constructor - Register administration header callback.
*
* @since unknown
* @param callback $admin_header_callback
* @return Custom_Image_Header
*/
function Custom_Image_Header($admin_header_callback) {
$this->admin_header_callback = $admin_header_callback;
}
/**
* Setup the hooks for the Custom Header admin page.
*
* @since unknown
*/
function init() {
$page = add_theme_page(__('Custom Image Header'), __('Custom Image Header'), 'edit_themes', 'custom-header', array(&$this, 'admin_page'));
add_action("admin_print_scripts-$page", array(&$this, 'js_includes'));
add_action("admin_head-$page", array(&$this, 'take_action'), 50);
add_action("admin_head-$page", array(&$this, 'js'), 50);
add_action("admin_head-$page", $this->admin_header_callback, 51);
}
/**
* Get the current step.
*
* @since unknown
*
* @return int Current step
*/
function step() {
if ( ! isset( $_GET['step'] ) )
return 1;
$step = (int) $_GET['step'];
if ( $step < 1 || 3 < $step )
$step = 1;
return $step;
}
/**
* Setup the enqueue for the JavaScript files.
*
* @since unknown
*/
function js_includes() {
$step = $this->step();
if ( 1 == $step )
wp_enqueue_script('colorpicker');
elseif ( 2 == $step )
wp_enqueue_script('cropper');
}
/**
* Execute custom header modification.
*
* @since unknown
*/
function take_action() {
if ( isset( $_POST['textcolor'] ) ) {
check_admin_referer('custom-header');
if ( 'blank' == $_POST['textcolor'] ) {
set_theme_mod('header_textcolor', 'blank');
} else {
$color = preg_replace('/[^0-9a-fA-F]/', '', $_POST['textcolor']);
if ( strlen($color) == 6 || strlen($color) == 3 )
set_theme_mod('header_textcolor', $color);
}
}
if ( isset($_POST['resetheader']) ) {
check_admin_referer('custom-header');
remove_theme_mods();
}
}
/**
* Execute Javascript depending on step.
*
* @since unknown
*/
function js() {
$step = $this->step();
if ( 1 == $step )
$this->js_1();
elseif ( 2 == $step )
$this->js_2();
}
/**
* Display Javascript based on Step 1.
*
* @since unknown
*/
function js_1() { ?>
<script type="text/javascript">
var cp = new ColorPicker();
function pickColor(color) {
$('name').style.color = color;
$('desc').style.color = color;
$('textcolor').value = color;
}
function PopupWindow_hidePopup(magicword) {
if ( magicword != 'prettyplease' )
return false;
if (this.divName != null) {
if (this.use_gebi) {
document.getElementById(this.divName).style.visibility = "hidden";
}
else if (this.use_css) {
document.all[this.divName].style.visibility = "hidden";
}
else if (this.use_layers) {
document.layers[this.divName].visibility = "hidden";
}
}
else {
if (this.popupWindow && !this.popupWindow.closed) {
this.popupWindow.close();
this.popupWindow = null;
}
}
return false;
}
function colorSelect(t,p) {
if ( cp.p == p && document.getElementById(cp.divName).style.visibility != "hidden" ) {
cp.hidePopup('prettyplease');
} else {
cp.p = p;
cp.select(t,p);
}
}
function colorDefault() {
pickColor('#<?php echo HEADER_TEXTCOLOR; ?>');
}
function hide_text() {
$('name').style.display = 'none';
$('desc').style.display = 'none';
$('pickcolor').style.display = 'none';
$('defaultcolor').style.display = 'none';
$('textcolor').value = 'blank';
$('hidetext').value = '<?php _e('Show Text'); ?>';
// $('hidetext').onclick = 'show_text()';
Event.observe( $('hidetext'), 'click', show_text );
}
function show_text() {
$('name').style.display = 'block';
$('desc').style.display = 'block';
$('pickcolor').style.display = 'inline';
$('defaultcolor').style.display = 'inline';
$('textcolor').value = '<?php echo HEADER_TEXTCOLOR; ?>';
$('hidetext').value = '<?php _e('Hide Text'); ?>';
Event.stopObserving( $('hidetext'), 'click', show_text );
Event.observe( $('hidetext'), 'click', hide_text );
}
<?php if ( 'blank' == get_theme_mod('header_textcolor', HEADER_TEXTCOLOR) ) { ?>
Event.observe( window, 'load', hide_text );
<?php } ?>
</script>
<?php
}
/**
* Display Javascript based on Step 2.
*
* @since unknown
*/
function js_2() { ?>
<script type="text/javascript">
function onEndCrop( coords, dimensions ) {
$( 'x1' ).value = coords.x1;
$( 'y1' ).value = coords.y1;
$( 'x2' ).value = coords.x2;
$( 'y2' ).value = coords.y2;
$( 'width' ).value = dimensions.width;
$( 'height' ).value = dimensions.height;
}
// with a supplied ratio
Event.observe(
window,
'load',
function() {
var xinit = <?php echo HEADER_IMAGE_WIDTH; ?>;
var yinit = <?php echo HEADER_IMAGE_HEIGHT; ?>;
var ratio = xinit / yinit;
var ximg = $('upload').width;
var yimg = $('upload').height;
if ( yimg < yinit || ximg < xinit ) {
if ( ximg / yimg > ratio ) {
yinit = yimg;
xinit = yinit * ratio;
} else {
xinit = ximg;
yinit = xinit / ratio;
}
}
new Cropper.Img(
'upload',
{
ratioDim: { x: xinit, y: yinit },
displayOnInit: true,
onEndCrop: onEndCrop
}
)
}
);
</script>
<?php
}
/**
* Display first step of custom header image page.
*
* @since unknown
*/
function step_1() {
if ( $_GET['updated'] ) { ?>
<div id="message" class="updated fade">
<p><?php _e('Header updated.') ?></p>
</div>
<?php } ?>
<div class="wrap">
<h2><?php _e('Your Header Image'); ?></h2>
<p><?php _e('This is your header image. You can change the text color or upload and crop a new image.'); ?></p>
<div id="headimg" style="background-image: url(<?php clean_url(header_image()) ?>);">
<h1><a onclick="return false;" href="<?php bloginfo('url'); ?>" title="<?php bloginfo('name'); ?>" id="name"><?php bloginfo('name'); ?></a></h1>
<div id="desc"><?php bloginfo('description');?></div>
</div>
<?php if ( !defined( 'NO_HEADER_TEXT' ) ) { ?>
<form method="post" action="<?php echo admin_url('themes.php?page=custom-header&amp;updated=true') ?>">
<input type="button" value="<?php _e('Hide Text'); ?>" onclick="hide_text()" id="hidetext" />
<input type="button" value="<?php _e('Select a Text Color'); ?>" onclick="colorSelect($('textcolor'), 'pickcolor')" id="pickcolor" /><input type="button" value="<?php _e('Use Original Color'); ?>" onclick="colorDefault()" id="defaultcolor" />
<?php wp_nonce_field('custom-header') ?>
<input type="hidden" name="textcolor" id="textcolor" value="#<?php attribute_escape(header_textcolor()) ?>" /><input name="submit" type="submit" value="<?php _e('Save Changes'); ?>" /></form>
<?php } ?>
<div id="colorPickerDiv" style="z-index: 100;background:#eee;border:1px solid #ccc;position:absolute;visibility:hidden;"> </div>
</div>
<div class="wrap">
<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>
<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>
<form enctype="multipart/form-data" id="uploadForm" method="POST" action="<?php echo attribute_escape(add_query_arg('step', 2)) ?>" style="margin: auto; width: 50%;">
<label for="upload"><?php _e('Choose an image from your computer:'); ?></label><br /><input type="file" id="upload" name="import" />
<input type="hidden" name="action" value="save" />
<?php wp_nonce_field('custom-header') ?>
<p class="submit">
<input type="submit" value="<?php _e('Upload'); ?>" />
</p>
</form>
</div>
<?php if ( get_theme_mod('header_image') || get_theme_mod('header_textcolor') ) : ?>
<div class="wrap">
<h2><?php _e('Reset Header Image and Color'); ?></h2>
<p><?php _e('This will restore the original header image and color. You will not be able to retrieve any customizations.') ?></p>
<form method="post" action="<?php echo attribute_escape(add_query_arg('step', 1)) ?>">
<?php wp_nonce_field('custom-header'); ?>
<input type="submit" name="resetheader" value="<?php _e('Restore Original Header'); ?>" />
</form>
</div>
<?php endif;
}
/**
* Display second step of custom header image page.
*
* @since unknown
*/
function step_2() {
check_admin_referer('custom-header');
$overrides = array('test_form' => false);
$file = wp_handle_upload($_FILES['import'], $overrides);
if ( isset($file['error']) )
die( $file['error'] );
$url = $file['url'];
$type = $file['type'];
$file = $file['file'];
$filename = basename($file);
// Construct the object array
$object = array(
'post_title' => $filename,
'post_content' => $url,
'post_mime_type' => $type,
'guid' => $url);
// Save the data
$id = wp_insert_attachment($object, $file);
list($width, $height, $type, $attr) = getimagesize( $file );
if ( $width == HEADER_IMAGE_WIDTH && $height == HEADER_IMAGE_HEIGHT ) {
// Add the meta-data
wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
set_theme_mod('header_image', clean_url($url));
do_action('wp_create_file_in_uploads', $file, $id); // For replication
return $this->finished();
} elseif ( $width > HEADER_IMAGE_WIDTH ) {
$oitar = $width / HEADER_IMAGE_WIDTH;
$image = wp_crop_image($file, 0, 0, $width, $height, HEADER_IMAGE_WIDTH, $height / $oitar, false, str_replace(basename($file), 'midsize-'.basename($file), $file));
$image = apply_filters('wp_create_file_in_uploads', $image, $id); // For replication
$url = str_replace(basename($url), basename($image), $url);
$width = $width / $oitar;
$height = $height / $oitar;
} else {
$oitar = 1;
}
?>
<div class="wrap">
<form method="POST" action="<?php echo attribute_escape(add_query_arg('step', 3)) ?>">
<p><?php _e('Choose the part of the image you want to use as your header.'); ?></p>
<div id="testWrap" style="position: relative">
<img src="<?php echo $url; ?>" id="upload" width="<?php echo $width; ?>" height="<?php echo $height; ?>" />
</div>
<p class="submit">
<input type="hidden" name="x1" id="x1" />
<input type="hidden" name="y1" id="y1" />
<input type="hidden" name="x2" id="x2" />
<input type="hidden" name="y2" id="y2" />
<input type="hidden" name="width" id="width" />
<input type="hidden" name="height" id="height" />
<input type="hidden" name="attachment_id" id="attachment_id" value="<?php echo $id; ?>" />
<input type="hidden" name="oitar" id="oitar" value="<?php echo $oitar; ?>" />
<?php wp_nonce_field('custom-header') ?>
<input type="submit" value="<?php _e('Crop Header'); ?>" />
</p>
</form>
</div>
<?php
}
/**
* Display third step of custom header image page.
*
* @since unknown
*/
function step_3() {
check_admin_referer('custom-header');
if ( $_POST['oitar'] > 1 ) {
$_POST['x1'] = $_POST['x1'] * $_POST['oitar'];
$_POST['y1'] = $_POST['y1'] * $_POST['oitar'];
$_POST['width'] = $_POST['width'] * $_POST['oitar'];
$_POST['height'] = $_POST['height'] * $_POST['oitar'];
}
$original = get_attached_file( $_POST['attachment_id'] );
$cropped = wp_crop_image($_POST['attachment_id'], $_POST['x1'], $_POST['y1'], $_POST['width'], $_POST['height'], HEADER_IMAGE_WIDTH, HEADER_IMAGE_HEIGHT);
$cropped = apply_filters('wp_create_file_in_uploads', $cropped, $_POST['attachment_id']); // For replication
$parent = get_post($_POST['attachment_id']);
$parent_url = $parent->guid;
$url = str_replace(basename($parent_url), basename($cropped), $parent_url);
// Construct the object array
$object = array(
'ID' => $_POST['attachment_id'],
'post_title' => basename($cropped),
'post_content' => $url,
'post_mime_type' => 'image/jpeg',
'guid' => $url
);
// Update the attachment
wp_insert_attachment($object, $cropped);
wp_update_attachment_metadata( $_POST['attachment_id'], wp_generate_attachment_metadata( $_POST['attachment_id'], $cropped ) );
set_theme_mod('header_image', $url);
// cleanup
$medium = str_replace(basename($original), 'midsize-'.basename($original), $original);
@unlink( apply_filters( 'wp_delete_file', $medium ) );
@unlink( apply_filters( 'wp_delete_file', $original ) );
return $this->finished();
}
/**
* Display last step of custom header image page.
*
* @since unknown
*/
function finished() {
?>
<div class="wrap">
<h2><?php _e('Header complete!'); ?></h2>
<p><?php _e('Visit your site and you should see the new header now.'); ?></p>
</div>
<?php
}
/**
* Display the page based on the current step.
*
* @since unknown
*/
function admin_page() {
$step = $this->step();
if ( 1 == $step )
$this->step_1();
elseif ( 2 == $step )
$this->step_2();
elseif ( 3 == $step )
$this->step_3();
}
}
?>