Merge pull request #1494 from Polymer/0.8-gestures-in-core

Fix nits from #1486

src/standard/gestures.html

@@ -28,7 +28,7 @@
   // but this breaks `<input>` focus and link clicks
   // disable mouse handlers for MOUSE_TIMEOUT ms after
   // a touchend to ignore synthetic mouse events
-  var MOUSE_CANCELLER = function(mouseEvent) {
+  var mouseCanceller = function(mouseEvent) {
     mouseEvent[HANDLED_OBJ] = {skip: true};
     // disable "ghost clicks"
     if (mouseEvent.type === 'click') {
@@ -43,18 +43,18 @@
     }
   };
 
-  function IGNORE_MOUSE(set) {
+  function ignoreMouse(set) {
     for (var i = 0, en; i < MOUSE_EVENTS.length; i++) {
       en = MOUSE_EVENTS[i];
       if (set) {
-        document.addEventListener(en, MOUSE_CANCELLER, true);
+        document.addEventListener(en, mouseCanceller, true);
       } else {
-        document.removeEventListener(en, MOUSE_CANCELLER, true);
+        document.removeEventListener(en, mouseCanceller, true);
       }
     }
     if (set) {
       // disable MOUSE_CANCELLER after MOUSE_TIMEOUT ms
-      setTimeout(IGNORE_MOUSE, MOUSE_TIMEOUT);
+      setTimeout(ignoreMouse, MOUSE_TIMEOUT);
     } else {
       POINTERSTATE.mouse.target = null;
     }
@@ -88,6 +88,7 @@
 
   function deepTargetFind(x, y) {
     var node = document.elementFromPoint(x, y);
+    // this code path is only taken when native ShadowDOM is used
     var next = node.shadowRoot;
     while(next) {
       next = next.elementFromPoint(x, y);
@@ -149,7 +150,7 @@
       // ignore syntethic mouse events after a touch
       if (type === 'touchend') {
         POINTERSTATE.touch.id = -1;
-        IGNORE_MOUSE(true);
+        ignoreMouse(true);
       }
     },
 
@@ -203,8 +204,8 @@
         gd[name] = (gd[name] || 0) + 1;
       }
       node.addEventListener(evType, handler);
-      if (recognizer.touchaction) {
-        this.setTouchAction(node, recognizer.touchaction);
+      if (recognizer.touchAction) {
+        this.setTouchAction(node, recognizer.touchAction);
       }
     },
 
@@ -266,7 +267,7 @@
 
   Gestures.register({
     name: 'track',
-    touchaction: 'none',
+    touchAction: 'none',
     deps: ['mousedown', 'touchmove', 'touchend'],
     emits: ['track'],