Fix drag events.

blockly_compressed.js

@@ -1316,7 +1316,7 @@ Blockly.OPPOSITE_TYPE=[];Blockly.OPPOSITE_TYPE[Blockly.INPUT_VALUE]=Blockly.OUTP
 Blockly.mainWorkspace=null;Blockly.clipboardXml_=null;Blockly.clipboardSource_=null;Blockly.dragMode_=0;Blockly.onTouchUpWrapper_=null;Blockly.svgSize=function(a){return{width:a.cachedWidth_,height:a.cachedHeight_}};
 Blockly.svgResize=function(a){for(;a.options.parentWorkspace;)a=a.options.parentWorkspace;var b=a.options.svg,c=b.parentNode;if(c){var d=c.offsetWidth,c=c.offsetHeight;b.cachedWidth_!=d&&(b.setAttribute("width",d+"px"),b.cachedWidth_=d);b.cachedHeight_!=c&&(b.setAttribute("height",c+"px"),b.cachedHeight_=c);a.resize()}};
 Blockly.onMouseUp_=function(a){a=Blockly.getMainWorkspace();Blockly.Css.setCursor(Blockly.Css.Cursor.OPEN);a.isScrolling=!1;Blockly.onTouchUpWrapper_&&(Blockly.unbindEvent_(Blockly.onTouchUpWrapper_),Blockly.onTouchUpWrapper_=null);Blockly.onMouseMoveWrapper_&&(Blockly.unbindEvent_(Blockly.onMouseMoveWrapper_),Blockly.onMouseMoveWrapper_=null)};
-Blockly.onMouseMove_=function(a){if(!(event.touches&&2<=event.touches.length)){var b=Blockly.getMainWorkspace();if(b.isScrolling){Blockly.removeAllRanges();var c=a.clientX-b.startDragMouseX,d=a.clientY-b.startDragMouseY,e=b.startDragMetrics,f=b.startScrollX+c,g=b.startScrollY+d,f=Math.min(f,-e.contentLeft),g=Math.min(g,-e.contentTop),f=Math.max(f,e.viewWidth-e.contentLeft-e.contentWidth),g=Math.max(g,e.viewHeight-e.contentTop-e.contentHeight);b.scrollbar.set(-f-e.contentLeft,-g-e.contentTop);Math.sqrt(c*
+Blockly.onMouseMove_=function(a){if(!(a.touches&&2<=a.touches.length)){var b=Blockly.getMainWorkspace();if(b.isScrolling){Blockly.removeAllRanges();var c=a.clientX-b.startDragMouseX,d=a.clientY-b.startDragMouseY,e=b.startDragMetrics,f=b.startScrollX+c,g=b.startScrollY+d,f=Math.min(f,-e.contentLeft),g=Math.min(g,-e.contentTop),f=Math.max(f,e.viewWidth-e.contentLeft-e.contentWidth),g=Math.max(g,e.viewHeight-e.contentTop-e.contentHeight);b.scrollbar.set(-f-e.contentLeft,-g-e.contentTop);Math.sqrt(c*
 c+d*d)>Blockly.DRAG_RADIUS&&Blockly.longStop_();a.stopPropagation()}}};
 Blockly.onKeyDown_=function(a){if(!Blockly.isTargetInput_(a))if(27==a.keyCode)Blockly.hideChaff();else if(8==a.keyCode||46==a.keyCode)try{Blockly.selected&&Blockly.selected.isDeletable()&&(Blockly.hideChaff(),Blockly.selected.dispose(!0,!0))}finally{a.preventDefault()}else if(a.altKey||a.ctrlKey||a.metaKey)Blockly.selected&&Blockly.selected.isDeletable()&&Blockly.selected.isMovable()&&(Blockly.hideChaff(),67==a.keyCode?Blockly.copy_(Blockly.selected):88==a.keyCode&&(Blockly.copy_(Blockly.selected),
 Blockly.selected.dispose(!0,!0))),86==a.keyCode&&Blockly.clipboardXml_&&Blockly.clipboardSource_.paste(Blockly.clipboardXml_)};Blockly.terminateDrag_=function(){Blockly.BlockSvg.terminateDrag_();Blockly.Flyout.terminateDrag_()};Blockly.longPid_=0;Blockly.longStart_=function(a,b){Blockly.longStop_();Blockly.longPid_=setTimeout(function(){a.button=2;b.onMouseDown_(a)},Blockly.LONGPRESS)};Blockly.longStop_=function(){Blockly.longPid_&&(clearTimeout(Blockly.longPid_),Blockly.longPid_=0)};

core/blockly.js

@@ -294,7 +294,7 @@ Blockly.onMouseUp_ = function(e) {
  * @private
  */
 Blockly.onMouseMove_ = function(e) {
-  if (event.touches && event.touches.length >= 2) {
+  if (e.touches && e.touches.length >= 2) {
     return;  // Multi-touch gestures won't have e.clientX.
   }
   var workspace = Blockly.getMainWorkspace();