From d230cb40fe798148eb697959e6e8ab9a5e5d2c51 Mon Sep 17 00:00:00 2001
From: "Manu Mtz.-Almeida" <manu.valladolid@gmail.com>
Date: Thu, 14 Jul 2016 00:03:53 +0200
Subject: [PATCH] fix(gestures): detecting swipe angle correctly + sliding item
 logic fix

---
 src/components/item/item-sliding-gesture.ts | 4 ++--
 src/components/menu/menu-gestures.ts        | 5 +++--
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/components/item/item-sliding-gesture.ts b/src/components/item/item-sliding-gesture.ts
index b97a1c9c9af..b71a166a99b 100644
--- a/src/components/item/item-sliding-gesture.ts
+++ b/src/components/item/item-sliding-gesture.ts
@@ -44,8 +44,8 @@ export class ItemSlidingGesture {
     }
 
     // Close open container if it is not the selected one.
-    if (container !== this.openContainer && this.closeOpened()) {
-      return false;
+    if (container !== this.openContainer) {
+      this.closeOpened();
     }
 
     // Try to start gesture
diff --git a/src/components/menu/menu-gestures.ts b/src/components/menu/menu-gestures.ts
index 60c274b98e5..bee1b3ac638 100644
--- a/src/components/menu/menu-gestures.ts
+++ b/src/components/menu/menu-gestures.ts
@@ -51,12 +51,13 @@ export class MenuContentGesture extends SlideEdgeGesture {
       return true;
     }
 
+    let cosine = Math.cos(ev.angle * (Math.PI / 180));
     if (menu.side === 'right') {
-      if ((ev.angle > 140 && ev.angle <= 180) || (ev.angle > -140 && ev.angle <= -180)) {
+      if (cosine < -0.95) {
         return super.canStart(ev);
       }
     } else {
-      if (ev.angle > -40 && ev.angle < 40) {
+      if (cosine > 0.95) {
         return super.canStart(ev);
       }
     }