Merge pull request #17 in WS/myscriptjs from fix-multiple-inputs to m…

…aster

* commit 'bf7dcc99f60f16ce2d1802dd8a6648b16a16c7d7':
  [examples]: fix possibility to write on inputs (MSIS-1587)

examples/v4/multiple_inputs.js

@@ -190,7 +190,7 @@ function attach(element, editor) {
       listener:
         function pointerDownHandler(evt) { // Trigger a pointerDown
           const pointerDownOnEditor = evt.target.id === editor.domElement.id || evt.target.classList.contains('ms-canvas');
-          if (this.activePointerId) {
+          if (this.activePointerId !== undefined) {
             if (this.activePointerId === evt.pointerId) {
               console.log(`${evt.type} event with the same id without any pointer up`, evt.pointerId);
             }
@@ -208,7 +208,7 @@ function attach(element, editor) {
       listener:
         function pointerMoveHandler(evt) { // Trigger a pointerMove
           // Only considering the active pointer
-          if (this.activePointerId && this.activePointerId === evt.pointerId) {
+          if (this.activePointerId !== undefined && this.activePointerId === evt.pointerId) {
             unfocus();
             editor.pointerMove(extractPoint(evt, element, editor.configuration));
           } else if (pointerDownOnInput) {
@@ -232,7 +232,7 @@ function attach(element, editor) {
       listener:
         function pointerUpHandler(evt) { // Trigger a pointerUp
           pointerDownOnInput = false;
-          if (this.activePointerId && this.activePointerId === evt.pointerId) { // Only considering the active pointer
+          if (this.activePointerId !== undefined && this.activePointerId === evt.pointerId) { // Only considering the active pointer
             this.activePointerId = undefined; // Managing the active pointer
             evt.stopPropagation();
             editor.pointerUp(extractPoint(evt, element, editor.configuration));