mirror of
https://gitee.com/g1879/DrissionPage.git
synced 2024-12-10 04:00:23 +08:00
623 lines
24 KiB
Python
623 lines
24 KiB
Python
# -*- coding:utf-8 -*-
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"""
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@Author : g1879
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@Contact : g1879@qq.com
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"""
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from copy import copy
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from re import search, findall, DOTALL
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from time import sleep, perf_counter
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from .._elements.chromium_element import ChromiumElement
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from .._pages.chromium_base import ChromiumBase
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from .._units.listener import FrameListener
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from .._units.rect import FrameRect
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from .._units.scroller import FrameScroller
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from .._units.setter import ChromiumFrameSetter
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from .._units.states import FrameStates
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from .._units.waiter import FrameWaiter
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from ..errors import ContextLostError, ElementLostError, GetDocumentError, PageClosedError, JavaScriptError
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class ChromiumFrame(ChromiumBase):
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def __init__(self, page, ele):
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"""
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:param page: frame所在的页面对象
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:param ele: frame所在元素
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"""
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page_type = str(type(page))
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if 'ChromiumPage' in page_type or 'WebPage' in page_type:
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self._page = self._target_page = self.tab = page
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self._browser = page.browser
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else: # Tab、Frame
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self._page = page.page
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self._browser = self._page.browser
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self._target_page = page
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self.tab = page.tab if 'ChromiumFrame' in page_type else page
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self.address = page.address
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self._tab_id = page.tab_id
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self._backend_id = ele._backend_id
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self._frame_ele = ele
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self._states = None
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self._reloading = False
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node = page.run_cdp('DOM.describeNode', backendNodeId=ele._backend_id)['node']
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self._frame_id = node['frameId']
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if self._is_inner_frame():
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self._is_diff_domain = False
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self.doc_ele = ChromiumElement(self._target_page, backend_id=node['contentDocument']['backendNodeId'])
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super().__init__(page.address, page.tab_id, page.timeout)
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else:
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self._is_diff_domain = True
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delattr(self, '_frame_id')
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super().__init__(page.address, node['frameId'], page.timeout)
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obj_id = super().run_js('document;', as_expr=True)['objectId']
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self.doc_ele = ChromiumElement(self, obj_id=obj_id)
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self._rect = None
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end_time = perf_counter() + 5
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while perf_counter() < end_time:
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if self.url not in (None, 'about:blank'):
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break
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sleep(.1)
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def __call__(self, loc_or_str, timeout=None):
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"""在内部查找元素
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例：ele2 = ele1('@id=ele_id')
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:param loc_or_str: 元素的定位信息，可以是loc元组，或查询字符串
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:param timeout: 超时时间
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:return: ChromiumElement对象或属性、文本
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"""
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return self.ele(loc_or_str, timeout)
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def __repr__(self):
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attrs = self._frame_ele.attrs
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attrs = [f"{attr}='{attrs[attr]}'" for attr in attrs]
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return f'<ChromiumFrame {self.frame_ele.tag} {" ".join(attrs)}>'
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def _d_set_runtime_settings(self):
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"""重写设置浏览器运行参数方法"""
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if not hasattr(self, '_timeouts'):
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self._timeouts = copy(self._target_page.timeouts)
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self.retry_times = self._target_page.retry_times
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self.retry_interval = self._target_page.retry_interval
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self._download_path = self._target_page.download_path
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self._load_mode = self._target_page._load_mode if not self._is_diff_domain else 'normal'
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def _driver_init(self, tab_id, is_init=True):
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"""避免出现服务器500错误
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:param tab_id: 要跳转到的标签页id
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:return: None
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"""
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try:
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super()._driver_init(tab_id)
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except:
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self.browser.driver.get(f'http://{self.address}/json')
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super()._driver_init(tab_id)
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self._driver.set_callback('Inspector.detached', self._onInspectorDetached)
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def _reload(self):
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"""重新获取document"""
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self._is_loading = True
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debug = self._debug
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d_debug = self.driver._debug
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self._reloading = True
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self._doc_got = False
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if debug:
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print(f'{self._frame_id} reload 开始')
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self._driver.stop()
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try:
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self._frame_ele = ChromiumElement(self._target_page, backend_id=self._backend_id)
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end_time = perf_counter() + 2
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while perf_counter() < end_time:
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node = self._target_page.run_cdp('DOM.describeNode', backendNodeId=self._frame_ele._backend_id)['node']
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if 'frameId' in node:
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break
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else:
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return
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except (ElementLostError, PageClosedError):
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return
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if self._is_inner_frame():
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self._is_diff_domain = False
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self.doc_ele = ChromiumElement(self._target_page, backend_id=node['contentDocument']['backendNodeId'])
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self._frame_id = node['frameId']
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if self._listener:
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self._listener._to_target(self._target_page.tab_id, self.address, self)
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super().__init__(self.address, self._target_page.tab_id, self._target_page.timeout)
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self._debug = debug
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self.driver._debug = d_debug
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else:
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self._is_diff_domain = True
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if self._listener:
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self._listener._to_target(node['frameId'], self.address, self)
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super().__init__(self.address, node['frameId'], self._target_page.timeout)
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end_time = perf_counter() + self.timeouts.page_load
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while perf_counter() < end_time:
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try:
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obj_id = super().run_js('document;', as_expr=True)['objectId']
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self.doc_ele = ChromiumElement(self, obj_id=obj_id)
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break
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except Exception as e:
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sleep(.1)
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if self._debug:
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print(f'获取doc失败，重试 {e}')
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else:
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raise GetDocumentError
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self._debug = debug
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self.driver._debug = d_debug
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self._is_loading = False
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self._reloading = False
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if self._debug:
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print(f'{self._frame_id} reload 完毕')
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def _get_document(self, timeout=10):
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"""刷新cdp使用的document数据
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:param timeout: 超时时间
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:return: 是否获取成功
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"""
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if self._is_reading:
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return
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if self._debug:
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print('获取文档开始')
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self._is_reading = True
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try:
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if self._is_diff_domain is False:
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node = self._target_page.run_cdp('DOM.describeNode', backendNodeId=self._backend_id)['node']
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self.doc_ele = ChromiumElement(self._target_page, backend_id=node['contentDocument']['backendNodeId'])
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else:
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timeout = timeout if timeout >= .5 else .5
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b_id = self.run_cdp('DOM.getDocument', _timeout=timeout)['root']['backendNodeId']
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self.doc_ele = ChromiumElement(self, backend_id=b_id)
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self._root_id = self.doc_ele._obj_id
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r = self.run_cdp('Page.getFrameTree')
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for i in findall(r"'id': '(.*?)'", str(r)):
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self.browser._frames[i] = self.tab_id
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if self._debug:
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print('获取文档结束')
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return True
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except:
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if self._debug:
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print('获取文档失败')
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return False
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finally:
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if not self._reloading: # 阻止reload时标识
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self._is_loading = False
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self._is_reading = False
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def _onInspectorDetached(self, **kwargs):
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"""异域转同域或退出"""
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if self._debug:
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print(f'{self._frame_id}触发InspectorDetached')
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self._reload()
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if self._debug:
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print(f'{self._frame_id}执行InspectorDetached完毕')
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def _onFrameDetached(self, **kwargs):
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"""同域变异域"""
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self.browser._frames.pop(kwargs['frameId'], None)
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if kwargs['frameId'] == self._frame_id:
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if self._debug:
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print(f'{self._frame_id}触发FrameDetached')
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self._reload()
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if self._debug:
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print(f'{self._frame_id}执行FrameDetached完毕')
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# ----------挂件----------
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@property
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def scroll(self):
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"""返回用于等待的对象"""
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self.wait.load_complete()
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if self._scroll is None:
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self._scroll = FrameScroller(self)
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return self._scroll
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@property
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def set(self):
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"""返回用于等待的对象"""
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if self._set is None:
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self._set = ChromiumFrameSetter(self)
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return self._set
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@property
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def states(self):
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"""返回用于获取状态信息的对象"""
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if self._states is None:
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self._states = FrameStates(self)
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return self._states
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@property
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def wait(self):
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"""返回用于等待的对象"""
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if self._wait is None:
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self._wait = FrameWaiter(self)
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return self._wait
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@property
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def rect(self):
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"""返回获取坐标和大小的对象"""
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if self._rect is None:
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self._rect = FrameRect(self)
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return self._rect
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@property
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def listen(self):
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"""返回用于聆听数据包的对象"""
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if self._listener is None:
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self._listener = FrameListener(self)
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return self._listener
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# ----------挂件----------
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@property
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def _obj_id(self):
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"""返回frame元素的object id"""
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return self.frame_ele._obj_id
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@property
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def _node_id(self):
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"""返回cdp中的node id"""
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return self.frame_ele._node_id
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@property
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def page(self):
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return self._page
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@property
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def frame_ele(self):
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"""返回总页面上的frame元素"""
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return self._frame_ele
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@property
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def tag(self):
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"""返回元素tag"""
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return self.frame_ele.tag
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@property
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def url(self):
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"""返回frame当前访问的url"""
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try:
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return self.doc_ele.run_js('return this.location.href;')
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except JavaScriptError:
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return None
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@property
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def html(self):
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"""返回元素outerHTML文本"""
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tag = self.tag
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out_html = self._target_page.run_cdp('DOM.getOuterHTML', backendNodeId=self.frame_ele._backend_id)['outerHTML']
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sign = search(rf'<{tag}.*?>', out_html, DOTALL).group(0)
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return f'{sign}{self.inner_html}</{tag}>'
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@property
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def inner_html(self):
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"""返回元素innerHTML文本"""
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return self.doc_ele.run_js('return this.documentElement.outerHTML;')
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@property
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def title(self):
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"""返回页面title"""
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r = self._ele('t:title', raise_err=False)
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return r.text if r else None
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@property
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def cookies(self):
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"""以dict格式返回cookies"""
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return super().cookies if self._is_diff_domain else self.doc_ele.run_js('return this.cookie;')
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@property
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def attrs(self):
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"""返回frame元素所有attribute属性"""
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return self.frame_ele.attrs
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@property
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def active_ele(self):
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"""返回当前焦点所在元素"""
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return self.doc_ele.run_js('return this.activeElement;')
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@property
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def xpath(self):
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"""返回frame的xpath绝对路径"""
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return self.frame_ele.xpath
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@property
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def css_path(self):
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"""返回frame的css selector绝对路径"""
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return self.frame_ele.css_path
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@property
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def tab_id(self):
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"""返回frame所在tab的id"""
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return self._tab_id
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@property
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def download_path(self):
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return self._download_path
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@property
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def _js_ready_state(self):
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"""返回当前页面加载状态，'loading' 'interactive' 'complete'"""
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if self._is_diff_domain:
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return super()._js_ready_state
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else:
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try:
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return self.doc_ele.run_js('return this.readyState;')
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except ContextLostError:
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try:
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node = self.run_cdp('DOM.describeNode', backendNodeId=self.frame_ele._backend_id)['node']
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doc = ChromiumElement(self._target_page, backend_id=node['contentDocument']['backendNodeId'])
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return doc.run_js('return this.readyState;')
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except:
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return None
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def refresh(self):
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"""刷新frame页面"""
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self.doc_ele.run_js('this.location.reload();')
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def attr(self, attr):
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"""返回frame元素attribute属性值
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:param attr: 属性名
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:return: 属性值文本，没有该属性返回None
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"""
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return self.frame_ele.attr(attr)
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def remove_attr(self, attr):
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"""删除frame元素attribute属性
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:param attr: 属性名
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:return: None
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"""
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self.frame_ele.remove_attr(attr)
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def run_js(self, script, *args, as_expr=False, timeout=None):
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"""运行javascript代码
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:param script: js文本
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:param args: 参数，按顺序在js文本中对应arguments[0]、arguments[1]...
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:param as_expr: 是否作为表达式运行，为True时args无效
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:param timeout: js超时时间，为None则使用页面timeouts.script设置
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:return: 运行的结果
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"""
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if script.startswith('this.scrollIntoView'):
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return self.frame_ele.run_js(script, *args, as_expr=as_expr, timeout=timeout)
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else:
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return self.doc_ele.run_js(script, *args, as_expr=as_expr, timeout=timeout)
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def parent(self, level_or_loc=1, index=1):
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"""返回上面某一级父元素，可指定层数或用查询语法定位
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:param level_or_loc: 第几级父元素，或定位符
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:param index: 当level_or_loc传入定位符，使用此参数选择第几个结果
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:return: 上级元素对象
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"""
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return self.frame_ele.parent(level_or_loc, index)
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def prev(self, filter_loc='', index=1, timeout=0, ele_only=True):
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"""返回当前元素前面一个符合条件的同级元素，可用查询语法筛选，可指定返回筛选结果的第几个
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:param filter_loc: 用于筛选的查询语法
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:param index: 前面第几个查询结果，1开始
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:param timeout: 查找节点的超时时间
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:param ele_only: 是否只获取元素，为False时把文本、注释节点也纳入
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:return: 同级元素或节点
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"""
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return self.frame_ele.prev(filter_loc, index, timeout, ele_only=ele_only)
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def next(self, filter_loc='', index=1, timeout=0, ele_only=True):
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"""返回当前元素后面一个符合条件的同级元素，可用查询语法筛选，可指定返回筛选结果的第几个
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:param filter_loc: 用于筛选的查询语法
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:param index: 后面第几个查询结果，1开始
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:param timeout: 查找节点的超时时间
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:param ele_only: 是否只获取元素，为False时把文本、注释节点也纳入
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:return: 同级元素或节点
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"""
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return self.frame_ele.next(filter_loc, index, timeout, ele_only=ele_only)
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def before(self, filter_loc='', index=1, timeout=None, ele_only=True):
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"""返回文档中当前元素前面符合条件的第一个元素，可用查询语法筛选，可指定返回筛选结果的第几个
|
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查找范围不限同级元素，而是整个DOM文档
|
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:param filter_loc: 用于筛选的查询语法
|
||
:param index: 前面第几个查询结果，1开始
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:param timeout: 查找节点的超时时间
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:param ele_only: 是否只获取元素，为False时把文本、注释节点也纳入
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:return: 本元素前面的某个元素或节点
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"""
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return self.frame_ele.before(filter_loc, index, timeout, ele_only=ele_only)
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def after(self, filter_loc='', index=1, timeout=None, ele_only=True):
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"""返回文档中此当前元素后面符合条件的第一个元素，可用查询语法筛选，可指定返回筛选结果的第几个
|
||
查找范围不限同级元素，而是整个DOM文档
|
||
:param filter_loc: 用于筛选的查询语法
|
||
:param index: 后面第几个查询结果，1开始
|
||
:param timeout: 查找节点的超时时间
|
||
:param ele_only: 是否只获取元素，为False时把文本、注释节点也纳入
|
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:return: 本元素后面的某个元素或节点
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||
"""
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||
return self.frame_ele.after(filter_loc, index, timeout, ele_only=ele_only)
|
||
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||
def prevs(self, filter_loc='', timeout=0, ele_only=True):
|
||
"""返回当前元素前面符合条件的同级元素或节点组成的列表，可用查询语法筛选
|
||
:param filter_loc: 用于筛选的查询语法
|
||
:param timeout: 查找节点的超时时间
|
||
:param ele_only: 是否只获取元素，为False时把文本、注释节点也纳入
|
||
:return: 同级元素或节点文本组成的列表
|
||
"""
|
||
return self.frame_ele.prevs(filter_loc, timeout, ele_only=ele_only)
|
||
|
||
def nexts(self, filter_loc='', timeout=0, ele_only=True):
|
||
"""返回当前元素后面符合条件的同级元素或节点组成的列表，可用查询语法筛选
|
||
:param filter_loc: 用于筛选的查询语法
|
||
:param timeout: 查找节点的超时时间
|
||
:param ele_only: 是否只获取元素，为False时把文本、注释节点也纳入
|
||
:return: 同级元素或节点文本组成的列表
|
||
"""
|
||
return self.frame_ele.nexts(filter_loc, timeout, ele_only=ele_only)
|
||
|
||
def befores(self, filter_loc='', timeout=None, ele_only=True):
|
||
"""返回文档中当前元素前面符合条件的元素或节点组成的列表，可用查询语法筛选
|
||
查找范围不限同级元素，而是整个DOM文档
|
||
:param filter_loc: 用于筛选的查询语法
|
||
:param timeout: 查找节点的超时时间
|
||
:param ele_only: 是否只获取元素，为False时把文本、注释节点也纳入
|
||
:return: 本元素前面的元素或节点组成的列表
|
||
"""
|
||
return self.frame_ele.befores(filter_loc, timeout, ele_only=ele_only)
|
||
|
||
def afters(self, filter_loc='', timeout=None, ele_only=True):
|
||
"""返回文档中当前元素后面符合条件的元素或节点组成的列表，可用查询语法筛选
|
||
查找范围不限同级元素，而是整个DOM文档
|
||
:param filter_loc: 用于筛选的查询语法
|
||
:param timeout: 查找节点的超时时间
|
||
:param ele_only: 是否只获取元素，为False时把文本、注释节点也纳入
|
||
:return: 本元素前面的元素或节点组成的列表
|
||
"""
|
||
return self.frame_ele.afters(filter_loc, timeout, ele_only=ele_only)
|
||
|
||
def get_screenshot(self, path=None, name=None, as_bytes=None, as_base64=None):
|
||
"""对页面进行截图，可对整个网页、可见网页、指定范围截图。对可视范围外截图需要90以上版本浏览器支持
|
||
:param path: 文件保存路径
|
||
:param name: 完整文件名，后缀可选 'jpg','jpeg','png','webp'
|
||
:param as_bytes: 是否以字节形式返回图片，可选 'jpg','jpeg','png','webp'，生效时path参数和as_base64参数无效
|
||
:param as_base64: 是否以base64字符串形式返回图片，可选 'jpg','jpeg','png','webp'，生效时path参数无效
|
||
:return: 图片完整路径或字节文本
|
||
"""
|
||
return self.frame_ele.get_screenshot(path=path, name=name, as_bytes=as_bytes, as_base64=as_base64)
|
||
|
||
def _get_screenshot(self, path=None, name=None, as_bytes: [bool, str] = None, as_base64: [bool, str] = None,
|
||
full_page=False, left_top=None, right_bottom=None, ele=None):
|
||
"""实现截图
|
||
:param path: 文件保存路径
|
||
:param name: 完整文件名，后缀可选 'jpg','jpeg','png','webp'
|
||
:param as_bytes: 是否以字节形式返回图片，可选 'jpg','jpeg','png','webp'，生效时path参数和as_base64参数无效
|
||
:param as_base64: 是否以base64字符串形式返回图片，可选 'jpg','jpeg','png','webp'，生效时path参数无效
|
||
:param full_page: 是否整页截图，为True截取整个网页，为False截取可视窗口
|
||
:param left_top: 截取范围左上角坐标
|
||
:param right_bottom: 截取范围右下角角坐标
|
||
:param ele: 为异域iframe内元素截图设置
|
||
:return: 图片完整路径或字节文本
|
||
"""
|
||
if not self._is_diff_domain:
|
||
return super().get_screenshot(path=path, name=name, as_bytes=as_bytes, as_base64=as_base64,
|
||
full_page=full_page, left_top=left_top, right_bottom=right_bottom)
|
||
|
||
if as_bytes:
|
||
if as_bytes is True:
|
||
pic_type = 'png'
|
||
else:
|
||
if as_bytes not in ('jpg', 'jpeg', 'png', 'webp'):
|
||
raise TypeError("只能接收 'jpg', 'jpeg', 'png', 'webp' 四种格式。")
|
||
pic_type = 'jpeg' if as_bytes == 'jpg' else as_bytes
|
||
|
||
elif as_base64:
|
||
if as_base64 is True:
|
||
pic_type = 'png'
|
||
else:
|
||
if as_base64 not in ('jpg', 'jpeg', 'png', 'webp'):
|
||
raise TypeError("只能接收 'jpg', 'jpeg', 'png', 'webp' 四种格式。")
|
||
pic_type = 'jpeg' if as_base64 == 'jpg' else as_base64
|
||
|
||
else:
|
||
path = str(path).rstrip('\\/') if path else '.'
|
||
if path and path.endswith(('.jpg', '.jpeg', '.png', '.webp')):
|
||
pic_type = path.rsplit('.', 1)[-1]
|
||
|
||
elif name and name.endswith(('.jpg', '.jpeg', '.png', '.webp')):
|
||
pic_type = name.rsplit('.', 1)[-1]
|
||
|
||
else:
|
||
pic_type = 'jpeg'
|
||
|
||
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.rect.viewport_location
|
||
w, h = ele.rect.size
|
||
img_data = f'data:image/{pic_type};base64,{self.frame_ele.get_screenshot(as_base64=True)}'
|
||
body = self.tab('t:body')
|
||
first_child = body('c::first-child')
|
||
if not isinstance(first_child, ChromiumElement):
|
||
first_child = first_child.frame_ele
|
||
js = f'''
|
||
img = document.createElement('img');
|
||
img.src = "{img_data}";
|
||
img.style.setProperty("z-index",9999999);
|
||
img.style.setProperty("position","fixed");
|
||
arguments[0].insertBefore(img, this);
|
||
return img;'''
|
||
new_ele = first_child.run_js(js, body)
|
||
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.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):
|
||
"""在frame内查找单个元素
|
||
:param loc_or_ele: 定位符或元素对象
|
||
:param timeout: 查找超时时间
|
||
:param single: True则返回第一个，False则返回全部
|
||
:param relative: WebPage用的表示是否相对定位的参数
|
||
:param raise_err: 找不到元素是是否抛出异常，为None时根据全局设置
|
||
:return: ChromiumElement对象
|
||
"""
|
||
if isinstance(loc_or_ele, ChromiumElement):
|
||
return loc_or_ele
|
||
self.wait.load_complete()
|
||
return self.doc_ele._ele(loc_or_ele, timeout,
|
||
raise_err=raise_err) if single else self.doc_ele.eles(loc_or_ele, timeout)
|
||
|
||
def _is_inner_frame(self):
|
||
"""返回当前frame是否同域"""
|
||
return self._frame_id in str(self._target_page.run_cdp('Page.getFrameTree')['frameTree'])
|
||
|
||
# ----------------即将废弃-----------------
|
||
|
||
@property
|
||
def is_alive(self):
|
||
"""返回是否仍可用"""
|
||
return self.states.is_alive
|
||
|
||
@property
|
||
def page_size(self):
|
||
"""返回frame内页面尺寸，格式：(宽,, 高)"""
|
||
return self.rect.size
|
||
|
||
@property
|
||
def size(self):
|
||
"""返回frame元素大小"""
|
||
return self.frame_ele.rect.size
|
||
|
||
@property
|
||
def location(self):
|
||
"""返回frame元素左上角的绝对坐标"""
|
||
return self.frame_ele.rect.location
|
||
|
||
@property
|
||
def locations(self):
|
||
"""返回用于获取元素位置的对象"""
|
||
return self.frame_ele.rect
|