[PM-24650] Resolve sign in button disappearing from ADP login form (#16901)

* ensure autofillInsertActions execution order is preserved

* don't fill a field if it already has the value that is going to be filled

* update tests

apps/browser/src/autofill/services/insert-autofill-content.service.spec.ts

@@ -103,7 +103,7 @@ describe("InsertAutofillContentService", () => {
         delay_between_operations: 20,
       },
       metadata: {},
-      autosubmit: null,
+      autosubmit: [],
       savedUrls: ["https://bitwarden.com"],
       untrustedIframe: false,
       itemType: "login",
@@ -218,28 +218,21 @@ describe("InsertAutofillContentService", () => {
 
       await insertAutofillContentService.fillForm(fillScript);
 
-      expect(insertAutofillContentService["userCancelledInsecureUrlAutofill"]).toHaveBeenCalled();
-      expect(
-        insertAutofillContentService["userCancelledUntrustedIframeAutofill"],
-      ).toHaveBeenCalled();
       expect(insertAutofillContentService["runFillScriptAction"]).toHaveBeenCalledTimes(3);
       expect(insertAutofillContentService["runFillScriptAction"]).toHaveBeenNthCalledWith(
         1,
         fillScript.script[0],
         0,
-        fillScript.script,
       );
       expect(insertAutofillContentService["runFillScriptAction"]).toHaveBeenNthCalledWith(
         2,
         fillScript.script[1],
         1,
-        fillScript.script,
       );
       expect(insertAutofillContentService["runFillScriptAction"]).toHaveBeenNthCalledWith(
         3,
         fillScript.script[2],
         2,
-        fillScript.script,
       );
     });
   });
@@ -623,14 +616,12 @@ describe("InsertAutofillContentService", () => {
       });
     });
 
-    it("will set the `value` attribute of any passed input or textarea elements", () => {
+    it("will set the `value` attribute of any passed input or textarea elements if the value differs", () => {
-      document.body.innerHTML = `<input type="text" id="username" /><textarea id="bio"></textarea>`;
+      document.body.innerHTML = `<input type="text" id="username" value="old" /><textarea id="bio">old</textarea>`;
       const value1 = "test";
       const value2 = "test2";
       const textInputElement = document.getElementById("username") as HTMLInputElement;
-      textInputElement.value = value1;
       const textareaElement = document.getElementById("bio") as HTMLTextAreaElement;
-      textareaElement.value = value2;
       jest.spyOn(insertAutofillContentService as any, "handleInsertValueAndTriggerSimulatedEvents");
 
       insertAutofillContentService["insertValueIntoField"](textInputElement, value1);
@@ -647,6 +638,45 @@ describe("InsertAutofillContentService", () => {
         insertAutofillContentService["handleInsertValueAndTriggerSimulatedEvents"],
       ).toHaveBeenCalledWith(textareaElement, expect.any(Function));
     });
+
+    it("will NOT set the `value` attribute of any passed input or textarea elements if they already have values matching the passed value", () => {
+      document.body.innerHTML = `<input type="text" id="username" /><textarea id="bio"></textarea>`;
+      const value1 = "test";
+      const value2 = "test2";
+      const textInputElement = document.getElementById("username") as HTMLInputElement;
+      textInputElement.value = value1;
+      const textareaElement = document.getElementById("bio") as HTMLTextAreaElement;
+      textareaElement.value = value2;
+      jest.spyOn(insertAutofillContentService as any, "handleInsertValueAndTriggerSimulatedEvents");
+
+      insertAutofillContentService["insertValueIntoField"](textInputElement, value1);
+
+      expect(textInputElement.value).toBe(value1);
+      expect(
+        insertAutofillContentService["handleInsertValueAndTriggerSimulatedEvents"],
+      ).not.toHaveBeenCalled();
+
+      insertAutofillContentService["insertValueIntoField"](textareaElement, value2);
+
+      expect(textareaElement.value).toBe(value2);
+      expect(
+        insertAutofillContentService["handleInsertValueAndTriggerSimulatedEvents"],
+      ).not.toHaveBeenCalled();
+    });
+
+    it("skips filling when the field already has the target value", () => {
+      const value = "test";
+      document.body.innerHTML = `<input type="text" id="username" value="${value}"/>`;
+      const element = document.getElementById("username") as FillableFormFieldElement;
+      jest.spyOn(insertAutofillContentService as any, "handleInsertValueAndTriggerSimulatedEvents");
+
+      insertAutofillContentService["insertValueIntoField"](element, value);
+
+      expect(
+        insertAutofillContentService["handleInsertValueAndTriggerSimulatedEvents"],
+      ).not.toHaveBeenCalled();
+      expect(element.value).toBe(value);
+    });
   });
 
   describe("handleInsertValueAndTriggerSimulatedEvents", () => {

apps/browser/src/autofill/services/insert-autofill-content.service.ts

@@ -49,8 +49,9 @@ class InsertAutofillContentService implements InsertAutofillContentServiceInterf
       return;
     }
 
-    const fillActionPromises = fillScript.script.map(this.runFillScriptAction);
+    for (let index = 0; index < fillScript.script.length; index++) {
-    await Promise.all(fillActionPromises);
+      await this.runFillScriptAction(fillScript.script[index], index);
+    }
   }
 
   /**
@@ -189,10 +190,14 @@ class InsertAutofillContentService implements InsertAutofillContentServiceInterf
     const elementCanBeReadonly =
       elementIsInputElement(element) || elementIsTextAreaElement(element);
     const elementCanBeFilled = elementCanBeReadonly || elementIsSelectElement(element);
+    const elementValue = (element as HTMLInputElement)?.value || element?.innerText || "";
+
+    const elementAlreadyHasTheValue = !!(elementValue?.length && elementValue === value);
 
     if (
       !element ||
       !value ||
+      elementAlreadyHasTheValue ||
       (elementCanBeReadonly && element.readOnly) ||
       (elementCanBeFilled && element.disabled)
     ) {