From 8d2e69f50e11714172436cdb7a06dfe25eabb194 Mon Sep 17 00:00:00 2001
From: Marco Castelluccio <mar.castelluccio@studenti.unina.it>
Date: Wed, 26 Nov 2014 00:14:04 +0100
Subject: [PATCH 1/2] Support long press gesture event

---
 midp/midp.js | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/midp/midp.js b/midp/midp.js
index 7272f292..f9ec8d36 100644
--- a/midp/midp.js
+++ b/midp/midp.js
@@ -622,14 +622,23 @@ MIDP.Context2D = (function() {
     // both. A distance threshold ensures that touches with an "intent
     // to tap" will likely result in a tap.
 
+    var LONG_PRESS_TIMEOUT = 500;
     var MIN_DRAG_DISTANCE_SQUARED = 5 * 5;
     var mouseDownInfo = null;
+    var longPressTimeoutID = null;
+    var longPressDetected = false;
 
     c.addEventListener(supportsTouch ? "touchstart" : "mousedown", function(event) {
         event.preventDefault(); // Prevent unnecessary fake mouse events.
         var pt = getEventPoint(event);
         sendPenEvent(pt, MIDP.PRESSED);
         mouseDownInfo = pt;
+
+        longPressDetected = false;
+        longPressTimeoutID = setTimeout(function() {
+            longPressDetected = true;
+            sendGestureEvent(pt, null, MIDP.GESTURE_LONG_PRESS);
+        }, LONG_PRESS_TIMEOUT);
     });
 
     c.addEventListener(supportsTouch ? "touchmove" : "mousemove", function(event) {
@@ -662,9 +671,16 @@ MIDP.Context2D = (function() {
         }
         event.preventDefault();
 
+        clearTimeout(longPressTimeoutID);
+
         var pt = getEventPoint(event);
         sendPenEvent(pt, MIDP.RELEASED);
-        sendGestureEvent(pt, null, mouseDownInfo.isDragging ? MIDP.GESTURE_DROP : MIDP.GESTURE_TAP);
+
+        if (mouseDownInfo.isDragging) {
+            sendGestureEvent(pt, null, MIDP.GESTURE_DROP);
+        } else if (!longPressDetected) {
+            sendGestureEvent(pt, null, MIDP.GESTURE_TAP);
+        }
 
         mouseDownInfo = null; // Clear the way for the next gesture.
     });

From 84b4622f29d063e0f3ba5e00aee9eb59e38ccf55 Mon Sep 17 00:00:00 2001
From: Marco Castelluccio <mar.castelluccio@studenti.unina.it>
Date: Wed, 26 Nov 2014 00:22:29 +0100
Subject: [PATCH 2/2] Don't send GESTURE_DRAG or GESTURE_DROP if the gesture
 was a long press

---
 midp/midp.js | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/midp/midp.js b/midp/midp.js
index f9ec8d36..0787aae4 100644
--- a/midp/midp.js
+++ b/midp/midp.js
@@ -622,7 +622,7 @@ MIDP.Context2D = (function() {
     // both. A distance threshold ensures that touches with an "intent
     // to tap" will likely result in a tap.
 
-    var LONG_PRESS_TIMEOUT = 500;
+    var LONG_PRESS_TIMEOUT = 1000;
     var MIN_DRAG_DISTANCE_SQUARED = 5 * 5;
     var mouseDownInfo = null;
     var longPressTimeoutID = null;
@@ -646,6 +646,12 @@ MIDP.Context2D = (function() {
             return; // Mousemove on desktop; ignored.
         }
         event.preventDefault();
+
+        if (longPressTimeoutID) {
+            clearTimeout(longPressTimeoutID);
+            longPressTimeoutID = null;
+        }
+
         var pt = getEventPoint(event);
         sendPenEvent(pt, MIDP.DRAGGED);
         var distance = {
@@ -660,7 +666,9 @@ MIDP.Context2D = (function() {
             mouseDownInfo.isDragging = true;
             mouseDownInfo.x = pt.x;
             mouseDownInfo.y = pt.y;
-            sendGestureEvent(pt, distance, MIDP.GESTURE_DRAG);
+            if (!longPressDetected) {
+                sendGestureEvent(pt, distance, MIDP.GESTURE_DRAG);
+            }
         }
     });
 
@@ -671,15 +679,16 @@ MIDP.Context2D = (function() {
         }
         event.preventDefault();
 
-        clearTimeout(longPressTimeoutID);
+        if (longPressTimeoutID) {
+            clearTimeout(longPressTimeoutID);
+            longPressTimeoutID = null;
+        }
 
         var pt = getEventPoint(event);
         sendPenEvent(pt, MIDP.RELEASED);
 
-        if (mouseDownInfo.isDragging) {
-            sendGestureEvent(pt, null, MIDP.GESTURE_DROP);
-        } else if (!longPressDetected) {
-            sendGestureEvent(pt, null, MIDP.GESTURE_TAP);
+        if (!longPressDetected) {
+            sendGestureEvent(pt, null, mouseDownInfo.isDragging ? MIDP.GESTURE_DROP : MIDP.GESTURE_TAP);
         }
 
         mouseDownInfo = null; // Clear the way for the next gesture.