refactor select handler (#565)

skyvern/exceptions.py

@@ -313,6 +313,11 @@ class ElementIsNotSelect2Dropdown(SkyvernException):
         super().__init__(f"element[{element}] is not select2 dropdown. element_id={element_id}")
 
 
+class ElementIsNotComboboxDropdown(SkyvernException):
+    def __init__(self, element_id: str, element: dict):
+        super().__init__(f"element[{element}] is not combobox dropdown. element_id={element_id}")
+
+
 class NoneFrameError(SkyvernException):
     def __init__(self, frame_id: str):
         super().__init__(f"frame content is none. frame_id={frame_id}")
@@ -382,3 +387,32 @@ class TaskAlreadyCanceled(SkyvernHTTPException):
 class InvalidTaskStatusTransition(SkyvernHTTPException):
     def __init__(self, old_status: str, new_status: str, task_id: str):
         super().__init__(f"Invalid task status transition from {old_status} to {new_status} for {task_id}")
+
+
+class ErrFoundSelectableElement(SkyvernException):
+    def __init__(self, element_id: str, err: Exception):
+        super().__init__(
+            f"error when selecting elements in the children list. element_id={element_id}, error={repr(err)}"
+        )
+
+
+class NoSelectableElementFound(SkyvernException):
+    def __init__(self, element_id: str):
+        super().__init__(f"No selectable elements found in the children list. element_id={element_id}")
+
+
+class NoDropdownAnchorErr(SkyvernException):
+    def __init__(self, dropdowm_type: str, element_id: str):
+        super().__init__(f"No {dropdowm_type} dropdown found. element_id={element_id}")
+
+
+class MultipleDropdownAnchorErr(SkyvernException):
+    def __init__(self, dropdowm_type: str, element_id: str):
+        super().__init__(f"Multiple {dropdowm_type} dropdown found. element_id={element_id}")
+
+
+class FailedToGetCurrentValueOfDropdown(SkyvernException):
+    def __init__(self, dropdowm_type: str, element_id: str, fail_reason: str):
+        super().__init__(
+            f"Failed to get current value of {dropdowm_type} dropdown. element_id={element_id}, failure_reason={fail_reason}"
+        )