<?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() {

		$page = add_theme_page(__('Custom Header'), __('Custom Header'), 'edit_themes', 'custom-header', array(&$this, 'admin_page'));

		add_action("admin_print_scripts-$page", array(&$this, 'js_includes'));

		add_action("admin_print_styles-$page", array(&$this, 'css_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('farbtastic');

		elseif ( 2 == $step )

			wp_enqueue_script('jcrop');

	}

	/**

	 * Setup the enqueue for the CSS files

	 *

	 * @since 2.7

	 */

	function css_includes() {

		$step = $this->step();

		if ( 1 == $step )

			wp_enqueue_style('farbtastic');

		elseif ( 2 == $step )

			wp_enqueue_style('jcrop');

	}

	/**

	 * 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 buttons = ['#name', '#desc', '#pickcolor', '#defaultcolor'];

	var farbtastic;

	function pickColor(color) {

		jQuery('#name').css('color', color);

		jQuery('#desc').css('color', color);

		jQuery('#textcolor').val(color);

		farbtastic.setColor(color);

	}

	jQuery(document).ready(function() {

		jQuery('#pickcolor').click(function() {

			jQuery('#colorPickerDiv').show();

		});

		jQuery('#hidetext').click(function() {

			toggle_text();

		});

		farbtastic = jQuery.farbtastic('#colorPickerDiv', function(color) { pickColor(color); });

		pickColor('#<?php echo get_theme_mod('header_textcolor', HEADER_TEXTCOLOR); ?>');

		<?php if ( 'blank' == get_theme_mod('header_textcolor', HEADER_TEXTCOLOR) ) { ?>

		toggle_text();

		<?php } ?>

	});

	jQuery(document).mousedown(function(){

		// Make the picker disappear, since we're using it in an independant div

		hide_picker();

	});

	function colorDefault() {

		pickColor('#<?php echo HEADER_TEXTCOLOR; ?>');

	}

	function hide_picker(what) {

		var update = false;

		jQuery('#colorPickerDiv').each(function(){

			var id = jQuery(this).attr('id');

			if (id == what) {

				return;

			}

			var display = jQuery(this).css('display');

			if (display == 'block') {

				jQuery(this).fadeOut(2);

			}

		});

	}

	function toggle_text(force) {

		if(jQuery('#textcolor').val() == 'blank') {

			//Show text

			jQuery( buttons.toString() ).show();

			jQuery('#textcolor').val('<?php echo HEADER_TEXTCOLOR; ?>');

			jQuery('#hidetext').val('<?php _e('Hide Text'); ?>');

		}

		else {

			//Hide text

			jQuery( buttons.toString() ).hide();

			jQuery('#textcolor').val('blank');

			jQuery('#hidetext').val('<?php _e('Show Text'); ?>');

		}

	}

</script>

<?php

	}

	/**

	 * Display Javascript based on Step 2.

	 *

	 * @since unknown

	 */

	function js_2() { ?>

<script type="text/javascript">

	function onEndCrop( coords ) {

		jQuery( '#x1' ).val(coords.x);

		jQuery( '#y1' ).val(coords.y);

		jQuery( '#x2' ).val(coords.x2);

		jQuery( '#y2' ).val(coords.y2);

		jQuery( '#width' ).val(coords.w);

		jQuery( '#height' ).val(coords.h);

	}

	// with a supplied ratio

	jQuery(document).ready(function() {

		var xinit = <?php echo HEADER_IMAGE_WIDTH; ?>;

		var yinit = <?php echo HEADER_IMAGE_HEIGHT; ?>;

		var ratio = xinit / yinit;

		var ximg = jQuery('#upload').width();

		var yimg = jQuery('#upload').height();

		//set up default values

		jQuery( '#x1' ).val(0);

		jQuery( '#y1' ).val(0);

		jQuery( '#x2' ).val(xinit);

		jQuery( '#y2' ).val(yinit);

		jQuery( '#width' ).val(xinit);

		jQuery( '#height' ).val(yinit);

		if ( yimg < yinit || ximg < xinit ) {

			if ( ximg / yimg > ratio ) {

				yinit = yimg;

				xinit = yinit * ratio;

			} else {

				xinit = ximg;

				yinit = xinit / ratio;

			}

		}

		jQuery('#upload').Jcrop({

			aspectRatio: ratio,

			setSelect: [ 0, 0, xinit, yinit ],

			onSelect: 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">

<?php screen_icon(); ?>

<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 esc_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" class="button" value="<?php esc_attr_e('Hide Text'); ?>" onclick="hide_text()" id="hidetext" />

<input type="button" class="button" value="<?php esc_attr_e('Select a Text Color'); ?>" id="pickcolor" /><input type="button" class="button" value="<?php esc_attr_e('Use Original Color'); ?>" onclick="colorDefault()" id="defaultcolor" />

<?php wp_nonce_field('custom-header') ?>

<input type="hidden" name="textcolor" id="textcolor" value="#<?php esc_attr(header_textcolor()) ?>" /><input name="submit" type="submit" class="button" value="<?php esc_attr_e('Save Changes'); ?>" /></form>

<?php } ?>

<div id="colorPickerDiv" style="z-index: 100;background:#eee;border:1px solid #ccc;position:absolute;display:none;"> </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 esc_attr(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 esc_attr_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 esc_attr(add_query_arg('step', 1)) ?>">

<?php wp_nonce_field('custom-header'); ?>

<input type="submit" class="button" name="resetheader" value="<?php esc_attr_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', esc_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 esc_attr(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 esc_attr($id); ?>" />

<input type="hidden" name="oitar" id="oitar" value="<?php echo esc_attr($oitar); ?>" />

<?php wp_nonce_field('custom-header') ?>

<input type="submit" value="<?php esc_attr_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'];

		}