expand leavemessage template

git-svn-id: https://webim.svn.sourceforge.net/svnroot/webim/trunk@164 c66351dc-e62f-0410-b875-e3a5c0b9693f

src/messenger/webim/client.php

@@ -15,6 +15,7 @@
 require_once('libs/common.php');
 require_once('libs/chat.php');
 require_once('libs/operator.php');
+require_once('libs/expand.php');
 
 if( !isset($_GET['token']) || !isset($_GET['thread']) ) {
 
@@ -25,8 +26,7 @@ if( !isset($_GET['token']) || !isset($_GET['thread']) ) {
 
 	if( !$thread ) {
 		if(!has_online_operators()) {
-			start_html_output();
-			require('view/chat_leavemsg.php');
+			expand("design/default/leavemessage.tpl");
 			exit;
 		}
 

src/messenger/webim/design/default/.htaccess

@@ -0,0 +1 @@
+Deny from all

src/messenger/webim/design/howto.txt

@@ -0,0 +1,12 @@
+
+	How to create a skin for chat window.
+	-------------------------------------
+	
+	1. Folder/files structure.
+	
+		myskin/
+			chat.tpl
+			leavemessage.tpl
+			leavemessagesent.tpl
+		
+ 

src/messenger/webim/leavemessage.php

@@ -14,6 +14,7 @@
 
 require_once('libs/common.php');
 require_once('libs/chat.php');
+require_once('libs/expand.php');
 
 $errors = array();
 $page = array();
@@ -38,8 +39,7 @@ if( count($errors) > 0 ) {
 	$page['formname'] = topage($visitor_name);
 	$page['formemail'] = $email;
 	$page['formmessage'] = topage($message);
-	start_html_output();
-	require('view/chat_leavemsg.php');
+	expand("design/default/leavemessage.tpl");
 	exit;
 }
 

src/messenger/webim/libs/expand.php

@@ -0,0 +1,74 @@
+<?php
+/*
+ * This file is part of Web Instant Messenger project.
+ *
+ * Copyright (c) 2005-2008 Web Messenger Community
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Evgeny Gryaznov - initial API and implementation
+ */
+
+function check_condition($condition) {
+	global $errors, $page;
+	if($condition == 'errors') {
+		return isset($errors) && count($errors) > 0;
+	}
+	return isset($page[$condition]) && $page[$condition];
+}
+
+function expand_condition($matches) {
+	global $page;
+	$value = check_condition($matches[2]) ^ ($matches[1] != 'if');
+	if($value) {
+		return $matches[3];
+	} else if($matches[4]) {
+		return substr($matches[4],strpos($matches[4],"}")+1); 
+	}
+	return "";
+}
+
+function expand_var($matches) {
+	global $page, $webimroot, $errors;
+	$prefix = $matches[1];
+	$var = $matches[2];
+	if(!$prefix) {
+		if($var == 'webimroot') {
+			return $webimroot;
+		} else if($var == 'errors') {
+			if( isset($errors) && count($errors) > 0 ) {
+				$result = getlocal("errors.header");
+				foreach( $errors as $e ) {
+					$result .= getlocal("errors.prefix").$e.getlocal("errors.suffix");
+				}
+				$result .= getlocal("errors.footer");
+				return $result;
+			}			
+		}
+
+	} else if($prefix == 'msg:') {
+		return getlocal($var);
+	} else if($prefix == 'form:') {
+		return $page["form$var"];
+	} else if($prefix == 'page:') {
+		return $page["$var"];
+	}
+
+	return "";
+}
+
+function expandtext($text) {
+	$text = preg_replace_callback("/\\\${(if|ifnot):([\w\.]+)}(.*?)(\\\${else:\\2}.*?)?\\\${endif:\\2}/sm", "expand_condition", $text);
+	return preg_replace_callback("/\\\${(\w+:)?([\w\.]+)}/", "expand_var", $text);
+}
+
+function expand($filename) {
+	start_html_output();
+	$contents = file_get_contents($filename) or die("illegal template");
+	echo expandtext($contents);
+}
+
+?>