refactor: keep track of shadow input to avoid re-scanning

src/Scanner.js

@@ -77,6 +77,8 @@ class DefaultScanner {
     stopped = false
     /** @type {import("./Form/matching").Matching} matching */
     matching
+    /** @type Map<HTMLInputElement, HTMLFormElement> */
+    shadowInputForm = new Map()
 
     /**
      * @param {import("./DeviceInterface/InterfacePrototype").default} device
@@ -165,8 +167,9 @@ class DefaultScanner {
                 const selector = this.matching.cssSelector('formInputsSelectorWithoutSelect')
                 const shadowElements = findEnclosedShadowElements(context, selector)
                 shadowElements.forEach((input) => {
-                    // @ts-ignore
-                    this.addInput(input)
+                    if (input instanceof HTMLInputElement) {
+                        this.addInput(input)
+                    }
                 })
             }
         }
@@ -269,7 +272,11 @@ class DefaultScanner {
     addInput (input) {
         if (this.stopped) return
 
-        const parentForm = this.getParentForm(input)
+        let parentForm = (input instanceof HTMLInputElement && this.shadowInputForm.has(input))
+            ? this.shadowInputForm.get(input)
+            : this.getParentForm(input)
+
+        if (parentForm === undefined) return
 
         if (parentForm instanceof HTMLFormElement && this.forms.has(parentForm)) {
             const foundForm = this.forms.get(parentForm)
@@ -434,7 +441,10 @@ class DefaultScanner {
             !realTarget.hasAttribute(ATTR_INPUT_TYPE)
         ) {
             const form = this.getParentForm(realTarget)
-            this.findEligibleInputs(form)
+            if (form && form instanceof HTMLFormElement) {
+                this.shadowInputForm.set(realTarget, form)
+                this.findEligibleInputs(form)
+            }
         }
 
         window.performance?.mark?.('scan_shadow:init:end')