P5-3631 - Fix lint issues and use eslint on build

dist/image-editor.js

@@ -614,7 +614,6 @@ var DragHandle = function (handler) {
   var _currentAxis;
   var _dragHandle;
   var _clickHandle = false;
-  var _movedHandle;
 
   // Event declarations
   var events = {
@@ -638,7 +637,6 @@ var DragHandle = function (handler) {
       }
 
       _dragHandle = false;
-      _movedHandle = false;
       _currentAxis = null;
       util.MouseMetrics.deletePreviousMouseData();
       handler.canvas.getImage().trigger('mouseup');
@@ -660,7 +658,6 @@ var DragHandle = function (handler) {
         y: 'movementY' in e.e ? e.e.movementY : (previousMouseData.y ? pageY - previousMouseData.y : 0)
       };
       util.MouseMetrics.setPreviousMouseData({x: pageX, y: pageY});
-      _movedHandle = true;
 
       if (_currentAxis === 'x') {
         handler.canvas.getImage().left -= movement.x;
@@ -1486,7 +1483,8 @@ function MirrorHandler(img) {
      * @return {MirrorHandler}
      */
   this.set = function(checked) {
-    _mirrored = (img.flipX = checked) ? 1 : 0;
+    img.flipX = checked;
+    _mirrored = checked ? 1 : 0;
     img.setCoords().canvas.renderAll();
 
     return this;
@@ -1656,7 +1654,7 @@ function TextButton(id, text, settings, isActive) {
 
   fabric.Group.call(this);
 
-  var __active = isActive || false;
+  this.__active = isActive || false;
   var _callback = null;
   var _rect = null;
   var _text = null;