diff --git a/DrissionPage/action_chains.py b/DrissionPage/action_chains.py
index d30bf3a..0b5724a 100644
--- a/DrissionPage/action_chains.py
+++ b/DrissionPage/action_chains.py
@@ -14,7 +14,7 @@ class ActionChains:
 
     def __init__(self, page):
         """
-        :param page: ChromiumPage对象
+        :param page: ChromiumBase对象
         """
         self.page = page
         self._dr = page.driver
diff --git a/DrissionPage/action_chains.pyi b/DrissionPage/action_chains.pyi
index 3b54a49..ca6061a 100644
--- a/DrissionPage/action_chains.pyi
+++ b/DrissionPage/action_chains.pyi
@@ -14,7 +14,7 @@ from .chromium_page import ChromiumPage
 class ActionChains:
 
     def __init__(self, page: ChromiumBase):
-        self.page: ChromiumPage = ...
+        self.page: ChromiumBase = ...
         self._dr: ChromiumDriver = ...
         self.modifier: int = ...
         self.curr_x: int = ...
diff --git a/DrissionPage/chromium_base.py b/DrissionPage/chromium_base.py
index 93b5c8a..8b379de 100644
--- a/DrissionPage/chromium_base.py
+++ b/DrissionPage/chromium_base.py
@@ -12,18 +12,20 @@ from time import perf_counter, sleep, time
 
 from requests import Session
 
+from .action_chains import ActionChains
 from .base import BasePage
 from .chromium_driver import ChromiumDriver
 from .chromium_element import ChromiumScroll, ChromiumElement, run_js, make_chromium_ele
 from .commons.constants import HANDLE_ALERT_METHOD, ERROR, NoneElement
 from .commons.locator import get_loc
 from .commons.tools import get_usable_path, clean_folder
+from .commons.web import location_in_viewport
 from .errors import ContextLossError, ElementLossError, AlertExistsError, CDPError, TabClosedError, \
     NoRectError, BrowserConnectError, GetDocumentError
 from .network_listener import NetworkListener
 from .session_element import make_session_ele
 from .setter import ChromiumBaseSetter
-from .waiter import ChromiumBaseWaiter, DownloadMission
+from .waiter import ChromiumBaseWaiter
 
 
 class ChromiumBase(BasePage):
@@ -43,13 +45,10 @@ class ChromiumBase(BasePage):
         self._tab_obj = None
         self._set = None
         self._screencast = None
+        self._actions = None
         self._listener = None
 
-        self._wait_download_flag = None
-        self._download_rename = None
         self._download_path = ''
-        self._when_download_file_exists = 'rename'
-        self._download_missions = set()
 
         if isinstance(address, int) or (isinstance(address, str) and address.isdigit()):
             address = f'127.0.0.1:{address}'
@@ -252,7 +251,7 @@ class ChromiumBase(BasePage):
 
     def _onDownloadWillBegin(self, **kwargs):
         """下载即将开始时执行"""
-        handle_download(self, kwargs)
+        self._page._dl_mgr.set_mission(self.tab_id, kwargs['guid'])
 
     def __call__(self, loc_or_str, timeout=None):
         """在内部查找元素
@@ -398,6 +397,14 @@ class ChromiumBase(BasePage):
             self._screencast = Screencast(self)
         return self._screencast
 
+    @property
+    def actions(self):
+        """返回用于执行动作链的对象"""
+        if self._actions is None:
+            self._actions = ActionChains(self)
+        self.wait.load_complete()
+        return self._actions
+
     @property
     def listener(self):
         """返回用于聆听数据包的对象"""
@@ -894,9 +901,17 @@ class ChromiumBase(BasePage):
                 x, y = left_top
                 w = right_bottom[0] - x
                 h = right_bottom[1] - y
+
+                v = not (location_in_viewport(self, x, y) and
+                         location_in_viewport(self, right_bottom[0], right_bottom[1]))
+                if v and (self.run_js('return document.body.scrollHeight > window.innerHeight;') and
+                          not self.run_js('return document.body.scrollWidth > window.innerWidth;')):
+                    x += 10
+
                 vp = {'x': x, 'y': y, 'width': w, 'height': h, 'scale': 1}
                 png = self.run_cdp_loaded('Page.captureScreenshot', format=pic_type,
-                                          captureBeyondViewport=True, clip=vp)['data']
+                                          captureBeyondViewport=v, clip=vp)['data']
+
             else:
                 png = self.run_cdp_loaded('Page.captureScreenshot', format=pic_type)['data']
 
@@ -1132,34 +1147,3 @@ class ScreencastMode(object):
 
     def imgs_mode(self):
         self._screencast._mode = 'imgs'
-
-
-def handle_download(tab, kwargs):
-    """在下载开始前处理任务
-    :param tab: 触发任务的tab对象
-    :param kwargs: 浏览器返回的数据
-    :return: None
-    """
-    tab._page._dl_mgr._missions[kwargs['guid']] = None
-
-    if tab._download_rename:
-        tmp = kwargs['suggestedFilename'].rsplit('.', 1)
-        ext_name = tmp[-1] if len(tmp) > 1 else ''
-        tmp = tab._download_rename.rsplit('.', 1)
-        ext_rename = tmp[-1] if len(tmp) > 1 else ''
-        n = tab._download_rename if ext_rename == ext_name else f'{tab._download_rename}.{ext_name}'
-        tab._download_rename = None
-
-    else:
-        n = kwargs['suggestedFilename']
-
-    m = DownloadMission(tab, kwargs['guid'], tab.download_path, n, kwargs['url'])
-    tab._page._dl_mgr.add_mission(m)
-    tab._wait_download_flag = m
-    tab._download_missions.add(m)
-
-    if tab._wait_download_flag is False:  # 取消该任务
-        m._set_done('canceled', True)
-
-    if tab._when_download_file_exists == 'skip' and (Path(m.path) / m.name).exists():
-        m._set_done('skipped', True)
diff --git a/DrissionPage/chromium_base.pyi b/DrissionPage/chromium_base.pyi
index 050880b..82ed6a2 100644
--- a/DrissionPage/chromium_base.pyi
+++ b/DrissionPage/chromium_base.pyi
@@ -9,6 +9,7 @@ from typing import Union, Tuple, List, Any
 from DataRecorder import Recorder
 from requests import Session
 
+from .action_chains import ActionChains
 from .base import BasePage
 from .chromium_driver import ChromiumDriver
 from .chromium_element import ChromiumElement, ChromiumScroll
@@ -44,11 +45,12 @@ class ChromiumBase(BasePage):
         self._wait: ChromiumBaseWaiter = ...
         self._set: ChromiumBaseSetter = ...
         self._screencast: Screencast = ...
+        self._actions: ActionChains = ...
         self._listener: NetworkListener = ...
-        self._wait_download_flag: bool = ...
-        self._download_rename: str = ...
-        self._when_download_file_exists: str = ...
-        self._download_missions: set = ...
+        # self._wait_download_flag: bool = ...
+        # self._download_rename: str = ...
+        # self._when_download_file_exists: str = ...
+        # self._download_missions: set = ...
 
     def _connect_browser(self, tab_id: str = None) -> None: ...
 
@@ -144,6 +146,9 @@ class ChromiumBase(BasePage):
     @property
     def screencast(self) -> Screencast: ...
 
+    @property
+    def actions(self) -> ActionChains: ...
+
     @property
     def listener(self) -> NetworkListener: ...
 
@@ -277,6 +282,3 @@ class ScreencastMode(object):
     def frugal_imgs_mode(self) -> None: ...
 
     def imgs_mode(self) -> None: ...
-
-
-def handle_download(tab: ChromiumBase, kwargs: dict) -> None: ...
diff --git a/DrissionPage/chromium_element.py b/DrissionPage/chromium_element.py
index 089ba08..5bf21f8 100644
--- a/DrissionPage/chromium_element.py
+++ b/DrissionPage/chromium_element.py
@@ -1435,6 +1435,14 @@ class ChromiumElementStates(object):
         x, y = self._ele.locations.click_point
         return location_in_viewport(self._ele.page, x, y) if x else False
 
+    @property
+    def is_whole_in_viewport(self):
+        """返回元素是否整个都在视口内"""
+        x1, y1 = self._ele.location
+        w, h = self._ele.size
+        x2, y2 = x1 + w, y1 + h
+        return location_in_viewport(self._ele.page, x1, y1) and location_in_viewport(self._ele.page, x2, y2)
+
     @property
     def is_covered(self):
         """返回元素是否被覆盖，与是否在视口中无关"""
@@ -1766,6 +1774,10 @@ class ChromiumElementScroll(ChromiumScroll):
         """
         self._driver.page.scroll.to_see(self._driver, center=center)
 
+    def to_center(self):
+        """元素尽量滚动到视口中间"""
+        self._driver.page.scroll.to_see(self._driver, center=True)
+
 
 class ChromiumSelect(object):
     """ChromiumSelect 类专门用于处理 d 模式下 select 标签"""
@@ -1936,10 +1948,10 @@ class ChromiumSelect(object):
 
         mode = 'false' if cancel else 'true'
         timeout = timeout if timeout is not None else self._ele.page.timeout
-        condition = {condition} if isinstance(condition, (str, int)) else set(condition)
+        condition = set(condition) if isinstance(condition, (list, tuple)) else {condition}
 
         if para_type in ('text', 'value'):
-            return self._text_value(condition, para_type, mode, timeout)
+            return self._text_value([str(i) for i in condition], para_type, mode, timeout)
         elif para_type == 'index':
             return self._index(condition, mode, timeout)
 
diff --git a/DrissionPage/chromium_element.pyi b/DrissionPage/chromium_element.pyi
index 58fac20..68a455a 100644
--- a/DrissionPage/chromium_element.pyi
+++ b/DrissionPage/chromium_element.pyi
@@ -232,6 +232,9 @@ class ChromiumElementStates(object):
     @property
     def is_in_viewport(self) -> bool: ...
 
+    @property
+    def is_whole_in_viewport(self) -> bool: ...
+
     @property
     def is_covered(self) -> bool: ...
 
@@ -489,6 +492,8 @@ class ChromiumElementScroll(ChromiumScroll):
 
     def to_see(self, center: Union[bool, None] = None) -> None: ...
 
+    def to_center(self) -> None: ...
+
 
 class ChromiumSelect(object):
     def __init__(self, ele: ChromiumElement):
@@ -538,7 +543,7 @@ class ChromiumSelect(object):
                 cancel: bool = False,
                 timeout: float = None) -> bool: ...
 
-    def _text_value(self, condition: set, para_type: str, mode: str, timeout: float) -> bool: ...
+    def _text_value(self, condition: Union[list, set], para_type: str, mode: str, timeout: float) -> bool: ...
 
     def _index(self, condition: set, mode: str, timeout: float) -> bool: ...
 
diff --git a/DrissionPage/chromium_frame.py b/DrissionPage/chromium_frame.py
index 9d136d3..4925910 100644
--- a/DrissionPage/chromium_frame.py
+++ b/DrissionPage/chromium_frame.py
@@ -4,14 +4,12 @@
 @Contact :   g1879@qq.com
 """
 from copy import copy
-from os.path import sep
 from re import search
 from threading import Thread
 from time import sleep, perf_counter
 
 from .chromium_base import ChromiumBase, ChromiumPageScroll
 from .chromium_element import ChromiumElement
-from .commons.tools import get_usable_path
 from .errors import ContextLossError
 from .setter import ChromiumFrameSetter
 from .waiter import FrameWaiter
@@ -24,7 +22,7 @@ class ChromiumFrame(ChromiumBase):
         :param ele: frame所在元素
         """
         page_type = str(type(page))
-        if 'ChromiumPage' in page_type or 'WebPage' in page:
+        if 'ChromiumPage' in page_type or 'WebPage' in page_type:
             self._page = self._target_page = self.tab = page
         else:  # Tab、Frame
             self._page = page.page
@@ -79,7 +77,7 @@ class ChromiumFrame(ChromiumBase):
         self.retry_interval = self._target_page.retry_interval
         self._page_load_strategy = self._target_page.page_load_strategy
         self._download_path = self._target_page.download_path
-        self._when_download_file_exists = self._target_page._when_download_file_exists
+        # self._when_download_file_exists = self._target_page._when_download_file_exists
 
     def _driver_init(self, tab_id):
         """避免出现服务器500错误
@@ -543,16 +541,16 @@ class ChromiumFrame(ChromiumBase):
                 name = f'{self.title}.jpg'
             if not name.endswith(('.jpg', '.jpeg', '.png', '.webp')):
                 name = f'{name}.jpg'
-            path = get_usable_path(f'{path}{sep}{name}')
-            pic_type = path.suffix.lower()
-            pic_type = 'jpeg' if pic_type == '.jpg' else pic_type[1:]
+            pic_type = name.split('.')[-1]
+            if pic_type == 'jpg':
+                pic_type = 'jpeg'
 
         self.frame_ele.scroll.to_see(center=True)
         self.scroll.to_see(ele, center=True)
         cx, cy = ele.locations.viewport_location
         w, h = ele.size
         img_data = f'data:image/{pic_type};base64,{self.frame_ele.get_screenshot(as_base64=True)}'
-        body = self._target_page('t:body')
+        body = self.tab('t:body')
         first_child = body('c::first-child')
         if not isinstance(first_child, ChromiumElement):
             first_child = first_child.frame_ele
@@ -564,12 +562,17 @@ class ChromiumFrame(ChromiumBase):
         arguments[0].insertBefore(img, this);
         return img;'''
         new_ele = first_child.run_js(js, body)
-        new_ele.scroll.to_see(True)
+        new_ele.scroll.to_see(center=True)
         top = int(self.frame_ele.style('border-top').split('px')[0])
         left = int(self.frame_ele.style('border-left').split('px')[0])
-        r = self._target_page.get_screenshot(path=path, name=name, as_bytes=as_bytes, as_base64=as_base64,
-                                             left_top=(cx + left, cy + top), right_bottom=(cx + w + left, cy + h + top))
-        self._target_page.remove_ele(new_ele)
+
+        r = self.tab.run_cdp('Page.getLayoutMetrics')['visualViewport']
+        sx = r['pageX']
+        sy = r['pageY']
+        r = self.tab.get_screenshot(path=path, name=name, as_bytes=as_bytes, as_base64=as_base64,
+                                    left_top=(cx + left + sx, cy + top + sy),
+                                    right_bottom=(cx + w + left + sx, cy + h + top + sy))
+        self.tab.remove_ele(new_ele)
         return r
 
     def _find_elements(self, loc_or_ele, timeout=None, single=True, relative=False, raise_err=None):
diff --git a/DrissionPage/chromium_frame.pyi b/DrissionPage/chromium_frame.pyi
index 3bf2f12..c125fa4 100644
--- a/DrissionPage/chromium_frame.pyi
+++ b/DrissionPage/chromium_frame.pyi
@@ -24,7 +24,6 @@ class ChromiumFrame(ChromiumBase):
         self.frame_id: str = ...
         self._frame_ele: ChromiumElement = ...
         self._backend_id: str = ...
-        self.frame_page: ChromiumBase = ...
         self._doc_ele: ChromiumElement = ...
         self._is_diff_domain: bool = ...
         self.doc_ele: ChromiumElement = ...
diff --git a/DrissionPage/commons/tools.py b/DrissionPage/commons/tools.py
index e360688..7f48033 100644
--- a/DrissionPage/commons/tools.py
+++ b/DrissionPage/commons/tools.py
@@ -10,21 +10,24 @@ from shutil import rmtree
 from time import perf_counter, sleep
 
 
-def get_usable_path(path):
+def get_usable_path(path, is_file=True, parents=True):
     """检查文件或文件夹是否有重名，并返回可以使用的路径
     :param path: 文件或文件夹路径
+    :param is_file: 目标是文件还是文件夹
+    :param parents: 是否创建目标路径
     :return: 可用的路径，Path对象
     """
     path = Path(path)
     parent = path.parent
-    parent.mkdir(parents=True, exist_ok=True)
+    if parents:
+        parent.mkdir(parents=True, exist_ok=True)
     path = parent / make_valid_name(path.name)
     name = path.stem if path.is_file() else path.name
     ext = path.suffix if path.is_file() else ''
 
     first_time = True
 
-    while path.exists():
+    while path.exists() and path.is_file() == is_file:
         r = search(r'(.*)_(\d+)$', name)
 
         if not r or (r and first_time):
@@ -213,42 +216,3 @@ def wait_until(page, condition, timeout=10, poll=0.1, raise_err=True):
         raise TimeoutError('等待超时')
     else:
         return False
-
-# def get_exe_from_port(port):
-#     """获取端口号第一条进程的可执行文件路径
-#     :param port: 端口号
-#     :return: 可执行文件的绝对路径
-#     """
-#     from os import popen
-#
-#     pid = get_pid_from_port(port)
-#     if not pid:
-#         return
-#     else:
-#         file_lst = popen(f'wmic process where processid={pid} get executablepath').read().split('\n')
-#         return file_lst[2].strip() if len(file_lst) > 2 else None
-#
-#
-# def get_pid_from_port(port):
-#     """获取端口号第一条进程的pid
-#     :param port: 端口号
-#     :return: 进程id
-#     """
-#     from platform import system
-#     if system().lower() != 'windows' or port is None:
-#         return None
-#
-#     from os import popen
-#     from time import perf_counter
-#
-#     try:  # 避免Anaconda中可能产生的报错
-#         process = popen(f'netstat -ano |findstr {port}').read().split('\n')[0]
-#
-#         t = perf_counter()
-#         while not process and perf_counter() - t < 5:
-#             process = popen(f'netstat -ano |findstr {port}').read().split('\n')[0]
-#
-#         return process.split(' ')[-1] or None
-#
-#     except Exception:
-#         return None
diff --git a/DrissionPage/commons/tools.pyi b/DrissionPage/commons/tools.pyi
index d7ed7f7..ba8d6ee 100644
--- a/DrissionPage/commons/tools.pyi
+++ b/DrissionPage/commons/tools.pyi
@@ -11,13 +11,7 @@ from types import FunctionType
 from chromium_page import ChromiumPage
 
 
-# def get_exe_from_port(port: Union[str, int]) -> Union[str, None]: ...
-
-
-# def get_pid_from_port(port: Union[str, int]) -> Union[str, None]: ...
-
-
-def get_usable_path(path: Union[str, Path]) -> Path: ...
+def get_usable_path(path: Union[str, Path], is_file: bool = True, parents: bool = True) -> Path: ...
 
 
 def make_valid_name(full_name: str) -> str: ...
diff --git a/DrissionPage/commons/web.py b/DrissionPage/commons/web.py
index 928b545..bad3529 100644
--- a/DrissionPage/commons/web.py
+++ b/DrissionPage/commons/web.py
@@ -92,7 +92,7 @@ def location_in_viewport(page, loc_x, loc_y):
     :param page: ChromePage对象
     :param loc_x: 页面绝对坐标x
     :param loc_y: 页面绝对坐标y
-    :return:
+    :return: bool
     """
     js = f'''function(){{var x = {loc_x}; var y = {loc_y};
     const scrollLeft = document.documentElement.scrollLeft;
diff --git a/DrissionPage/commons/web.pyi b/DrissionPage/commons/web.pyi
index b91ba71..f4b4931 100644
--- a/DrissionPage/commons/web.pyi
+++ b/DrissionPage/commons/web.pyi
@@ -20,7 +20,7 @@ def get_ele_txt(e: DrissionElement) -> str: ...
 def format_html(text: str) -> str: ...
 
 
-def location_in_viewport(page, loc_x: int, loc_y: int) -> bool: ...
+def location_in_viewport(page: ChromiumBase, loc_x: int, loc_y: int) -> bool: ...
 
 
 def offset_scroll(ele: ChromiumElement, offset_x: int, offset_y: int) -> tuple: ...
diff --git a/DrissionPage/easy_set.py b/DrissionPage/easy_set.py
index becea0f..7ed75a7 100644
--- a/DrissionPage/easy_set.py
+++ b/DrissionPage/easy_set.py
@@ -198,7 +198,7 @@ def get_chrome_path(ini_path=None,
 
     from platform import system
     sys = system().lower()
-    if sys == 'macos':
+    if sys in ('macos', 'darwin'):
         return '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome'
 
     elif sys == 'linux':