<?php

/**

 * Theme editor administration panel.

 *

 * @package WordPress

 * @subpackage Administration

 */

/** WordPress Administration Bootstrap */

require_once( dirname( __FILE__ ) . '/admin.php' );

if ( is_multisite() && ! is_network_admin() ) {

	wp_redirect( network_admin_url( 'theme-editor.php' ) );

	exit();

}

if ( !current_user_can('edit_themes') )

	wp_die('<p>'.__('You do not have sufficient permissions to edit templates for this site.').'</p>');

$title = __("Edit Themes");

$parent_file = 'themes.php';

get_current_screen()->add_help_tab( array(

'id'		=> 'overview',

'title'		=> __('Overview'),

'content'	=>

	'<p>' . __('You can use the Theme Editor to edit the individual CSS and PHP files which make up your theme.') . '</p>

	<p>' . __('Begin by choosing a theme to edit from the dropdown menu and clicking Select. A list then appears of all the template files. Clicking once on any file name causes the file to appear in the large Editor box.') . '</p>

	<p>' . __('For PHP files, you can use the Documentation dropdown to select from functions recognized in that file. Look Up takes you to a web page with reference material about that particular function.') . '</p>

	<p id="newcontent-description">' . __('In the editing area the Tab key enters a tab character. To move below this area by pressing Tab, press the Esc key followed by the Tab key.') . '</p>

	<p>' . __('After typing in your edits, click Update File.') . '</p>

	<p>' . __('<strong>Advice:</strong> think very carefully about your site crashing if you are live-editing the theme currently in use.') . '</p>

	<p>' . sprintf( __('Upgrading to a newer version of the same theme will override changes made here. To avoid this, consider creating a <a href="%s" target="_blank">child theme</a> instead.'), __('http://codex.wordpress.org/Child_Themes') ) . '</p>' .

	( is_network_admin() ? '<p>' . __('Any edits to files from this screen will be reflected on all sites in the network.') . '</p>' : '' )

) );

get_current_screen()->set_help_sidebar(

	'<p><strong>' . __('For more information:') . '</strong></p>' .

	'<p>' . __('<a href="http://codex.wordpress.org/Theme_Development" target="_blank">Documentation on Theme Development</a>') . '</p>' .

	'<p>' . __('<a href="http://codex.wordpress.org/Using_Themes" target="_blank">Documentation on Using Themes</a>') . '</p>' .

	'<p>' . __('<a href="http://codex.wordpress.org/Editing_Files" target="_blank">Documentation on Editing Files</a>') . '</p>' .

	'<p>' . __('<a href="http://codex.wordpress.org/Template_Tags" target="_blank">Documentation on Template Tags</a>') . '</p>' .

	'<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'

);

wp_reset_vars( array( 'action', 'error', 'file', 'theme' ) );

if ( $theme )

	$stylesheet = $theme;

else

	$stylesheet = get_stylesheet();

$theme = wp_get_theme( $stylesheet );

if ( ! $theme->exists() )

	wp_die( __( 'The requested theme does not exist.' ) );

if ( $theme->errors() && 'theme_no_stylesheet' == $theme->errors()->get_error_code() )

	wp_die( __( 'The requested theme does not exist.' ) . ' ' . $theme->errors()->get_error_message() );

$allowed_files = $theme->get_files( 'php', 1 );

$has_templates = ! empty( $allowed_files );

$style_files = $theme->get_files( 'css' );

$allowed_files['style.css'] = $style_files['style.css'];

$allowed_files += $style_files;

if ( empty( $file ) ) {

	$relative_file = 'style.css';

	$file = $allowed_files['style.css'];

} else {

	$relative_file = $file;

	$file = $theme->get_stylesheet_directory() . '/' . $relative_file;

}

validate_file_to_edit( $file, $allowed_files );

$scrollto = isset( $_REQUEST['scrollto'] ) ? (int) $_REQUEST['scrollto'] : 0;

switch( $action ) {

case 'update':

	check_admin_referer( 'edit-theme_' . $file . $stylesheet );

	$newcontent = wp_unslash( $_POST['newcontent'] );

	$location = 'theme-editor.php?file=' . urlencode( $relative_file ) . '&theme=' . urlencode( $stylesheet ) . '&scrollto=' . $scrollto;

	if ( is_writeable( $file ) ) {

		//is_writable() not always reliable, check return value. see comments @ http://uk.php.net/is_writable

		$f = fopen( $file, 'w+' );

		if ( $f !== false ) {

			fwrite( $f, $newcontent );

			fclose( $f );

			$location .= '&updated=true';

			$theme->cache_delete();

		}

	}

	wp_redirect( $location );

	exit;

break;

default:

	require_once( ABSPATH . 'wp-admin/admin-header.php' );

	update_recently_edited( $file );

	if ( ! is_file( $file ) )

		$error = true;

	$content = '';

	if ( ! $error && filesize( $file ) > 0 ) {

		$f = fopen($file, 'r');

		$content = fread($f, filesize($file));

		if ( '.php' == substr( $file, strrpos( $file, '.' ) ) ) {

			$functions = wp_doc_link_parse( $content );

			$docs_select = '<select name="docs-list" id="docs-list">';

			$docs_select .= '<option value="">' . esc_attr__( 'Function Name&hellip;' ) . '</option>';

			foreach ( $functions as $function ) {

				$docs_select .= '<option value="' . esc_attr( urlencode( $function ) ) . '">' . htmlspecialchars( $function ) . '()</option>';

			}

			$docs_select .= '</select>';

		}

		$content = esc_textarea( $content );

	}

	?>

<?php if ( isset( $_GET['updated'] ) ) : ?>

 <div id="message" class="updated"><p><?php _e( 'File edited successfully.' ) ?></p></div>

<?php endif;

$description = get_file_description( $file );

$file_show = array_search( $file, array_filter( $allowed_files ) );

if ( $description != $file_show )

	$description .= ' <span>(' . $file_show . ')</span>';

?>

<div class="wrap">

<?php screen_icon(); ?>

<h2><?php echo esc_html( $title ); ?></h2>

<div class="fileedit-sub">

<div class="alignleft">

<h3><?php echo $theme->display('Name'); if ( $description ) echo ': ' . $description; ?></h3>

</div>

<div class="alignright">

	<form action="theme-editor.php" method="post">

		<strong><label for="theme"><?php _e('Select theme to edit:'); ?> </label></strong>

		<select name="theme" id="theme">

<?php

foreach ( wp_get_themes( array( 'errors' => null ) ) as $a_stylesheet => $a_theme ) {

	if ( $a_theme->errors() && 'theme_no_stylesheet' == $a_theme->errors()->get_error_code() )

		continue;

	$selected = $a_stylesheet == $stylesheet ? ' selected="selected"' : '';

	echo "\n\t" . '<option value="' . esc_attr( $a_stylesheet ) . '"' . $selected . '>' . $a_theme->display('Name') . '</option>';

}

?>

		</select>

		<?php submit_button( __( 'Select' ), 'button', 'Submit', false ); ?>

	</form>

</div>

<br class="clear" />

</div>

<?php

if ( $theme->errors() )

	echo '<div class="error"><p><strong>' . __( 'This theme is broken.' ) . '</strong> ' . $theme->errors()->get_error_message() . '</p></div>';

?>

	<div id="templateside">

<?php

if ( $allowed_files ) :

	if ( $has_templates || $theme->parent() ) :

?>

	<h3><?php _e('Templates'); ?></h3>

	<?php if ( $theme->parent() ) : ?>

	<p class="howto"><?php printf( __( 'This child theme inherits templates from a parent theme, %s.' ), '<a href="' . self_admin_url('theme-editor.php?theme=' . urlencode( $theme->get_template() ) ) . '">' . $theme->parent()->display('Name') . '</a>' ); ?></p>

	<?php endif; ?>

	<ul>

<?php

	endif;

	foreach ( $allowed_files as $filename => $absolute_filename ) :

		if ( 'style.css' == $filename )

			echo "\t</ul>\n\t<h3>" . _x( 'Styles', 'Theme stylesheets in theme editor' ) . "</h3>\n\t<ul>\n";

		$file_description = get_file_description( $absolute_filename );

		if ( $file_description != basename( $filename ) )

			$file_description .= '<br /><span class="nonessential">(' . $filename . ')</span>';

		if ( $absolute_filename == $file )

			$file_description = '<span class="highlight">' . $file_description . '</span>';

?>

		<li><a href="theme-editor.php?file=<?php echo urlencode( $filename ) ?>&amp;theme=<?php echo urlencode( $stylesheet ) ?>"><?php echo $file_description; ?></a></li>

<?php

	endforeach;

?>

</ul>

<?php endif; ?>

</div>

<?php if ( $error ) :

	echo '<div class="error"><p>' . __('Oops, no such file exists! Double check the name and try again, merci.') . '</p></div>';

else : ?>

	<form name="template" id="template" action="theme-editor.php" method="post">

	<?php wp_nonce_field( 'edit-theme_' . $file . $stylesheet ); ?>

		<div><textarea cols="70" rows="30" name="newcontent" id="newcontent" aria-describedby="newcontent-description"><?php echo $content; ?></textarea>

		<input type="hidden" name="action" value="update" />

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

		<input type="hidden" name="theme" value="<?php echo esc_attr( $theme->get_stylesheet() ); ?>" />

		<input type="hidden" name="scrollto" id="scrollto" value="<?php echo $scrollto; ?>" />

		</div>

	<?php if ( ! empty( $functions ) ) : ?>

		<div id="documentation" class="hide-if-no-js">

		<label for="docs-list"><?php _e('Documentation:') ?></label>

		<?php echo $docs_select; ?>

		<input type="button" class="button" value=" <?php esc_attr_e( 'Look Up' ); ?> " onclick="if ( '' != jQuery('#docs-list').val() ) { window.open( 'http://api.wordpress.org/core/handbook/1.0/?function=' + escape( jQuery( '#docs-list' ).val() ) + '&amp;locale=<?php echo urlencode( get_locale() ) ?>&amp;version=<?php echo urlencode( $wp_version ) ?>&amp;redirect=true'); }" />

		</div>

	<?php endif; ?>

		<div>

		<?php if ( is_child_theme() && $theme->get_stylesheet() == get_template() ) : ?>

			<p><?php if ( is_writeable( $file ) ) { ?><strong><?php _e( 'Caution:' ); ?></strong><?php } ?>

			<?php _e( 'This is a file in your current parent theme.' ); ?></p>

		<?php endif; ?>

<?php

	if ( is_writeable( $file ) ) :

		submit_button( __( 'Update File' ), 'primary', 'submit', true );

	else : ?>

<p><em><?php _e('You need to make this file writable before you can save your changes. See <a href="http://codex.wordpress.org/Changing_File_Permissions">the Codex</a> for more information.'); ?></em></p>

<?php endif; ?>

		</div>

	</form>

<?php

endif; // $error

?>

<br class="clear" />

</div>

<script type="text/javascript">

/* <![CDATA[ */

jQuery(document).ready(function($){

	$('#template').submit(function(){ $('#scrollto').val( $('#newcontent').scrollTop() ); });

	$('#newcontent').scrollTop( $('#scrollto').val() );

});

/* ]]> */

</script>

<?php

break;

}

include(ABSPATH . 'wp-admin/admin-footer.php' );