chore: move partial save behind feature toggle

src/DeviceInterface/InterfacePrototype.js

@@ -785,6 +785,17 @@ class InterfacePrototype {
         }
     }
 
+    /**
+     * Checks if partial save can be triggered
+     * @param {DataStorageObject} values
+     * @returns {boolean}
+     */
+    shouldTriggerPartialSave(values) {
+        // If credentials has only username field, and no password field, then trigger is a partialSave
+        const isUsernameOnly = Object.keys(values?.credentials || {}).length === 1 && Boolean(values?.credentials?.username);
+        return isUsernameOnly && Boolean(this.settings.featureToggles.partial_form_saves);
+    }
+
     /**
      * `postSubmit` gives features a one-time-only opportunity to perform an
      * action directly after a form submission was observed.
@@ -799,17 +810,15 @@ class InterfacePrototype {
     postSubmit(values, form) {
         if (!form.form) return;
         if (!form.hasValues(values)) return;
-
-        const isUsernameOnly = Object.keys(values?.credentials || {}).length === 1 && values?.credentials?.username;
-        const checks = [form.shouldPromptToStoreData && !form.submitHandlerExecuted, this.passwordGenerator.generated, isUsernameOnly];
+        const shouldPartialSave = this.shouldTriggerPartialSave(values);
+        const checks = [form.shouldPromptToStoreData && !form.submitHandlerExecuted, this.passwordGenerator.generated, shouldPartialSave];
         if (checks.some(Boolean)) {
             const formData = appendGeneratedKey(values, {
                 password: this.passwordGenerator.password,
                 username: this.emailProtection.lastGenerated,
             });
 
-            // If credentials has only username field, and no password field, then trigger is a partialSave
-            const trigger = isUsernameOnly ? 'partialSave' : 'formSubmission';
+            const trigger = shouldPartialSave ? 'partialSave' : 'formSubmission';
             this.storeFormData(formData, trigger);
         }
     }

src/deviceApiCalls/schemas/autofill-settings.json

@@ -41,6 +41,10 @@
         "unknown_username_categorization": {
           "type": "boolean",
           "description": "If true, we will attempt categorizaing username, based on the rest of the input fields in the form"
+        },
+        "partial_form_saves": {
+          "type": "boolean",
+          "description": "If true, we will trigger a partial save if the form has only username field, and no password field"
         }
       },
       "required": []
@@ -49,4 +53,4 @@
   "required": [
     "featureToggles"
   ]
-}
+}