pictures on walls

1 files changed, 6 insertions, 1 deletions

diff --git a/assets/javascripts/rectangles/util/mouse.js b/assets/javascripts/rectangles/util/mouse.js
index 8d94201..09fee0d 100644
--- a/assets/javascripts/rectangles/util/mouse.js
+++ b/assets/javascripts/rectangles/util/mouse.js
@@ -49,6 +49,8 @@ function mouse (opt) {
 	opt.up && base.tube.on("up", opt.up)
 	opt.rightclick && base.tube.on("rightclick", opt.rightclick)
 	
+	var offset = opt.el.getBoundingClientRect()
+	
 	base.init = function (){
 		base.bind()
 	}
@@ -61,7 +63,6 @@ function mouse (opt) {
 	}
 
 	function positionFromMouse(e) {
-		var offset = opt.el.getBoundingClientRect()
 		var mx = offset.left - e.pageX
 		var my = e.pageY - offset.top
 
@@ -71,6 +72,8 @@ function mouse (opt) {
 	base.mousedown = function(e){
 		e.stopPropagation()
 		
+		offset = opt.el.getBoundingClientRect()
+		
 		var pos = positionFromMouse(e)
 		
 		var x = pos.a, y = pos.b
@@ -82,6 +85,8 @@ function mouse (opt) {
 	base.mousemove = function(e){
 		e.stopPropagation()
 		
+		if (! offset) return;
+		
 		var pos = positionFromMouse(e)
 
 		if (e.shiftKey) {