Support for hidden custom fields (custom fields that start with _)

git-svn-id: http://svn.automattic.com/wordpress/trunk@1935 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/admin-functions.php

@@ -259,6 +259,7 @@ function list_meta($meta) {
 	global $post_ID;	
 	// Exit if no meta
 	if (!$meta) return;
+	$count = 0;
 ?>
 <table id='meta-list' cellpadding="3">
 	<tr>
@@ -269,9 +270,12 @@ function list_meta($meta) {
 <?php
 		
 	foreach ($meta as $entry) {
-		$style = ('class="alternate"' == $style) ? '' : 'class="alternate"';
+		++$count;
+		if ( $count % 2 ) $style = 'alternate';
+		else $style = '';
+		if ( '_' == $entry['meta_key']{0} ) $style .= ' hidden';
 		echo "
-	<tr $style>
+	<tr class='$style'>
 		<td valign='top'><input name='meta[{$entry['meta_id']}][key]' tabindex='6' type='text' size='20' value='{$entry['meta_key']}' /></td>
 		<td><textarea name='meta[{$entry['meta_id']}][value]' tabindex='6' rows='2' cols='30'>{$entry['meta_value']}</textarea></td>
 		<td align='center' width='10%'><input name='updatemeta' type='submit' class='updatemeta' tabindex='6' value='" . __('Update') ."' /></td>
@@ -326,11 +330,11 @@ function meta_form() {
 <?php endif; ?>
 </td>
 <td><input type="text" id="metakeyinput" name="metakeyinput" tabindex="7" /></td>
-		<td><textarea id="metavalue" name="metavalue" rows="3" cols="25" tabindex="7"></textarea></td>
+		<td><textarea id="metavalue" name="metavalue" rows="3" cols="25" tabindex="8"></textarea></td>
 	</tr>
 
 </table>
-<p class="submit"><input type="submit" name="updatemeta" tabindex="7" value="<?php _e('Add Custom Field &raquo;') ?>" /></p>
+<p class="submit"><input type="submit" name="updatemeta" tabindex="9" value="<?php _e('Add Custom Field &raquo;') ?>" /></p>
 <?php
 }
 
@@ -801,7 +805,9 @@ function get_real_file_to_edit($file) {
 	return $real_file;
 }
 
-$wp_file_descriptions = array('index.php' => __('Main Template'),
+$wp_file_descriptions = 
+	array(
+	'index.php' => __('Main Template'),
 	'wp-layout.css' => __('Stylesheet'),
 	'style.css' => __('Stylesheet'),
 	'wp-comments.php' => __('Comments Template'),
@@ -821,7 +827,6 @@ $wp_file_descriptions = array('index.php' => __('Main Template'),
 	'single.php' => __('Post Template'),
 	'404.php' => __('404 Template'),
 	'my-hacks.php' => __('my-hacks.php (legacy hacks support)'),
-															
 	'.htaccess' => __('.htaccess (for rewrite rules)')
 	);
 

wp-admin/admin-header.php

@@ -8,9 +8,27 @@
 <link rel="shortcut icon" href="../wp-images/wp-favicon.png" />
 <meta http-equiv="Content-Type" content="text/html; charset=<?php echo get_settings('blog_charset'); ?>" />
 
-<?php if ( isset($xfn) ) : ?>
 <script type="text/javascript">
 //<![CDATA[
+
+function customToggleLink() {
+	// TODO: Only show link if there's a hidden row
+	document.write('<small>(<a href="javascript:;" id="customtoggle" onclick="toggleHidden()"><?php _e('Show hidden'); ?></a>)</small>');
+	// TODO: Rotate link to say "show" or "hide"
+	// TODO: Use DOM
+}
+
+function toggleHidden() {
+	var allElements = document.getElementsByTagName('tr');
+	for (i = 0; i < allElements.length; i++) {
+		if ( allElements[i].className.indexOf('hidden') != -1 ) {
+			 allElements[i].className = allElements[i].className.replace('hidden', '');
+		}
+	}
+}
+
+<?php if ( isset($xfn) ) : ?>
+
 function GetElementsWithClassName(elementName, className) {
 	var allElements = document.getElementsByTagName(elementName);
 	var elemColl = new Array();
@@ -57,9 +75,10 @@ function blurry() {
 }
 
 window.onload = blurry;
+<?php endif; ?>
+
 //]]>
 </script>
-<?php endif; ?>
 
 <?php do_action('admin_head', ''); ?>
 </head>

wp-admin/edit-page-form.php

@@ -122,7 +122,7 @@ edCanvas = document.getElementById('content');
 </fieldset>
 
 <fieldset id="postcustom">
-<legend><?php _e('Custom Fields') ?></legend>
+<legend><?php _e('Custom Fields') ?> <script type="text/javascript">customToggleLink();</script></legend>
 <div id="postcustomstuff">
 <?php 
 if($metadata = has_meta($post_ID)) {

wp-admin/wp-admin.css

@@ -153,6 +153,10 @@ textarea, input, select {
 	padding: 1px;
 }
 
+.hidden {
+	display: none;
+}
+
 .post-categories {
 	display: inline;
 	margin: 0;