parse text node for Hints across JS world with event target

Author: brookhong

src/content_scripts/common/hints.js

@@ -437,9 +437,10 @@ div.hint-scrollable {
                 }
             } else {
                 if (elm.constructor.name === "Array") {
+                    const target = elm[0];
                     // remove Text Node from elm as it cannot be transitted across JS scope
-                    elm[0] = null;
-                    dispatchSKEvent('user', ["onHintClicked", elm]);
+                    elm[0] = "__EVENT_TARGET__";
+                    dispatchSKEvent('user', ["onHintClicked", elm], target);
                 } else {
                     dispatchSKEvent('user', ["onHintClicked"], elm);
                 }

src/content_scripts/common/utils.js

@@ -291,7 +291,12 @@ function initSKFunctionListener(name, interfaces, capture) {
         let args = evt.detail;
         const fk = args.shift();
         if (capture) {
-            args.push(evt.target);
+            if (args[0].constructor.name === "Array" && args[0][0] === "__EVENT_TARGET__") {
+                // restore args from evt.target, see src/content_scripts/common/hints.js:442
+                args[0][0] = evt.target;
+            } else {
+                args.push(evt.target);
+            }
         }
 
         if (callbacks.hasOwnProperty(fk)) {