From 9d09c35cbc9c55ea25111118268af12848f3e1ad Mon Sep 17 00:00:00 2001
From: Ivan Borzenkov <ivan1986@list.ru>
Date: Sat, 26 Apr 2014 11:30:27 +0400
Subject: [PATCH 1/2] unbind all watchers after start

---
 bindonce.js | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/bindonce.js b/bindonce.js
index 3a6f43d..e9b2c1f 100644
--- a/bindonce.js
+++ b/bindonce.js
@@ -317,5 +317,38 @@
 
 			return bindonceDirective;
 		});
-	})
+	});
+
+	bindonceModule.directive('bindTurn', function ()
+	{
+		var findChild = function(scope) {
+			if (typeof scope.$stopUnbind != 'undefined')
+				return;
+			scope.$$listeners = {};
+			scope.$$watchers = scope.$$asyncQueue = scope.$$postDigestQueue = [];
+			for(var cs = scope.$$childHead; cs; cs = cs.$$nextSibling) {
+				findChild(cs);
+			}
+		}
+
+		return {
+			restrict: "AM",
+			scope: true,
+			link: function( $scope, $element, $attrs ) {
+				setTimeout(function() {
+					findChild($scope);
+				}, 0);
+			}
+		}
+	});
+	bindonceModule.directive('bindPerm', function ()
+	{
+		return {
+			scope: true,
+			link: function( $scope, $element ) {
+				$scope.$stopUnbind = true;
+			}
+		}
+	});
+
 })();

From 206044b6de53541fb319019c96bb16b07787be21 Mon Sep 17 00:00:00 2001
From: Ivan Borzenkov <ivan1986@list.ru>
Date: Sat, 26 Apr 2014 12:04:23 +0400
Subject: [PATCH 2/2] switch watchers by flag

---
 bindonce.js | 47 +++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 45 insertions(+), 2 deletions(-)

diff --git a/bindonce.js b/bindonce.js
index e9b2c1f..7729579 100644
--- a/bindonce.js
+++ b/bindonce.js
@@ -321,11 +321,49 @@
 
 	bindonceModule.directive('bindTurn', function ()
 	{
+		var mainScope = null;
+		var watchVar = null;
+		var scopesList = {};
+
+		var sw = function(newVal, oldVal) {
+			if (newVal == oldVal)
+				return;
+			newVal ? bind() : unbind();
+		};
+
+		var unbind = function() {
+			for(var i in scopesList) {
+				var item = scopesList[i];
+				scopesList[i].listeners = item.scope.$$listeners;
+				scopesList[i].watchers = item.scope.$$watchers;
+				scopesList[i].asyncQueue = item.scope.$$asyncQueue;
+				scopesList[i].postDigestQueue = item.scope.$$postDigestQueue;
+				item.scope.$$listeners = {};
+				item.scope.$$watchers = item.scope.$$asyncQueue = item.scope.$$postDigestQueue = [];
+			}
+			mainScope.$watch(watchVar, sw);
+		};
+
+		var bind = function() {
+			for(var i in scopesList) {
+				var item = scopesList[i];
+				item.scope.$$listeners = item.listeners;
+				item.scope.$$watchers = item.watchers;
+				item.scope.$$asyncQueue = item.asyncQueue;
+				item.scope.$$postDigestQueue = item.postDigestQueue;
+			}
+		};
+
 		var findChild = function(scope) {
 			if (typeof scope.$stopUnbind != 'undefined')
 				return;
-			scope.$$listeners = {};
-			scope.$$watchers = scope.$$asyncQueue = scope.$$postDigestQueue = [];
+			scopesList[scope.$id] = {
+				listeners: scope.$$listeners,
+				watchers: scope.$$watchers,
+				asyncQueue: scope.$$asyncQueue,
+				postDigestQueue: scope.$$postDigestQueue,
+				scope: scope
+			};
 			for(var cs = scope.$$childHead; cs; cs = cs.$$nextSibling) {
 				findChild(cs);
 			}
@@ -335,8 +373,13 @@
 			restrict: "AM",
 			scope: true,
 			link: function( $scope, $element, $attrs ) {
+				mainScope = $scope;
+				watchVar = $attrs.bindTurn;
+				mainScope.$watch(watchVar, sw);
 				setTimeout(function() {
 					findChild($scope);
+					if (mainScope[watchVar] == false)
+						unbind();
 				}, 0);
 			}
 		}