ajaxify change email form

functions.php

@@ -3174,8 +3174,8 @@
 		header("Pragma: no-cache"); // HTTP/1.0
 	}
 
-	function format_warning($msg) {
-		return "<div class=\"warning\"> 
+	function format_warning($msg, $id = "") {
+		return "<div class=\"warning\" id=\"$id\"> 
 			<img src=\"images/sign_excl.png\">$msg</div>";
 	}
 

modules/pref-prefs.php

@@ -55,9 +55,8 @@
 			}
 
 			return;
-		}
 
-		if ($subop == "Save configuration") {
+		} else if ($subop == "Save configuration") {
 
 			$_SESSION["prefs_op_result"] = "save-config";
 
@@ -113,17 +112,17 @@
 				print "Unknown option: $pref_name";
 			}
 
-		} else if ($subop == "Change e-mail") {
+		} else if ($subop == "change-email") {
 
-			$email = db_escape_string($_GET["email"]);
+			$email = db_escape_string($_POST["email"]);
 			$active_uid = $_SESSION["uid"];
 
-			if ($email) {
-				db_query($link, "UPDATE ttrss_users SET email = '$email' 
-						WHERE id = '$active_uid'");				
-			}
-
-			return prefs_js_redirect();
+			db_query($link, "UPDATE ttrss_users SET email = '$email' 
+				WHERE id = '$active_uid'");				
+		
+			print "E-mail has been changed.";
+		
+			return;
 
 		} else if ($subop == "Reset to defaults") {
 
@@ -181,7 +180,8 @@
 						pwd_hash = 'SHA1:".sha1("password")."')");
 
 				if (db_num_rows($result) != 0) {
-					print format_warning("Your password is at default value, please change it.");
+					print format_warning("Your password is at default value, 
+						please change it.", "default_pass_warning");
 				}
 
 /*				if ($_SESSION["pwd_change_result"] == "failed") {
@@ -204,7 +204,7 @@
 
 				$_SESSION["prefs_op_result"] = "";
 
-				print "<form action=\"backend.php\" method=\"GET\">";
+				print "<form onsubmit='return false' id='change_email_form'>";
 	
 				print "<table width=\"100%\" class=\"prefPrefsList\">";
 	 			print "<tr><td colspan='3'><h3>Personal data</h3></tr></td>";
@@ -216,17 +216,19 @@
 	
 				print "<tr><td width=\"40%\">E-mail</td>";
 				print "<td><input class=\"editbox\" name=\"email\" 
+					onkeypress=\"return filterCR(event, changeUserEmail)\"
 					value=\"$email\"></td></tr>";
 	
 				print "</table>";
 	
 				print "<input type=\"hidden\" name=\"op\" value=\"pref-prefs\">";
-	
-				print "<p><input class=\"button\" type=\"submit\" 
-					value=\"Change e-mail\" name=\"subop\">";
+				print "<input type=\"hidden\" name=\"subop\" value=\"change-email\">";
 
 				print "</form>";
 
+				print "<p><input class=\"button\" type=\"submit\"
+					onclick=\"return changeUserEmail()\" value=\"Change e-mail\">";
+
 				print "<form onsubmit=\"return false\" 
 					name=\"change_pass_form\" id=\"change_pass_form\">";
 	

prefs.js

@@ -132,16 +132,23 @@ function notify_callback() {
 
 
 function changepass_callback() {
-	if (xmlhttp.readyState == 4) {
+	try {
+		if (xmlhttp.readyState == 4) {
+	
+			if (xmlhttp.responseText.indexOf("ERROR: ") == 0) {
+				notify_error(xmlhttp.responseText.replace("ERROR: ", ""));
+			} else {
+				notify_info(xmlhttp.responseText);
+				var warn = document.getElementById("default_pass_warning");
+				if (warn) warn.style.display = "none";
+			}
+	
+			document.forms['change_pass_form'].reset();
 
-		if (xmlhttp.responseText.indexOf("ERROR: ") == 0) {
-			notify_error(xmlhttp.responseText.replace("ERROR: ", ""));
-		} else {
-			notify_info(xmlhttp.responseText);
-		}
-
-		document.forms['change_pass_form'].reset();
-	} 
+		} 
+	} catch (e) {
+		exception_error("changepass_callback", e);
+	}
 }
 
 function updateFeedList(sort_key) {
@@ -1623,3 +1630,28 @@ function changeUserPassword() {
 	return false;
 }
 
+function changeUserEmail() {
+
+	try {
+
+		if (!xmlhttp_ready(xmlhttp)) {
+			printLockingError();
+			return false;
+		}
+	
+		var query = Form.serialize("change_email_form");
+	
+		notify_progress("Trying to change e-mail...");
+	
+		xmlhttp.open("POST", "backend.php", true);
+		xmlhttp.onreadystatechange=notify_callback;
+		xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+		xmlhttp.send(query);
+
+	} catch (e) {
+		exception_error("changeUserPassword", e);
+	}
+	
+	return false;
+
+}