mirror of
https://gitee.com/g1879/DrissionPage.git
synced 2024-12-10 04:00:23 +08:00
1201 lines
48 KiB
Python
1201 lines
48 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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@File : chrome_element.py
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"""
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from pathlib import Path
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from re import search
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from typing import Union, Tuple, List, Any
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from time import perf_counter, sleep
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from .session_element import make_session_ele, SessionElement
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from .base import DrissionElement
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from .common import make_absolute_link, get_loc, get_ele_txt, format_html, is_js_func
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class ChromeElement(DrissionElement):
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def __init__(self, page, node_id: str = None, obj_id: str = None):
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super().__init__(page)
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self._select = None
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self._scroll = None
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if not node_id and not obj_id:
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raise TypeError('node_id或obj_id必须传入一个。')
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if node_id:
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self._node_id = node_id
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self._obj_id = self._get_obj_id(node_id)
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else:
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self._node_id = self._get_node_id(obj_id)
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self._obj_id = obj_id
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def __repr__(self) -> str:
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attrs = [f"{attr}='{self.attrs[attr]}'" for attr in self.attrs]
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return f'<ChromeElement {self.tag} {" ".join(attrs)}>'
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def __call__(self,
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loc_or_str: Union[Tuple[str, str], str],
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timeout: float = None) -> Union['ChromeElement', str, None]:
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"""在内部查找元素 \n
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例：ele2 = ele1('@id=ele_id') \n
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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: ChromeElement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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@property
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def html(self) -> str:
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"""返回元素outerHTML文本"""
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tag = self.tag
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if tag in ('iframe', 'frame'):
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out_html = self.page.driver.DOM.getOuterHTML(nodeId=self._node_id)['outerHTML']
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in_html = self.inner_html
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sign = search(rf'<{tag}.*?>', out_html).group(0)
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return f'{sign}{in_html}</{tag}>'
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return self.page.driver.DOM.getOuterHTML(nodeId=self._node_id)['outerHTML']
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@property
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def tag(self) -> str:
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return self.page.driver.DOM.describeNode(nodeId=self._node_id)['node']['localName']
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@property
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def inner_html(self) -> str:
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"""返回元素innerHTML文本"""
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if self.tag in ('iframe', 'frame'):
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return _run_script(self, 'this.contentDocument.documentElement;').html
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# return _run_script(self, 'this.contentDocument.body;').html
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return self.run_script('this.innerHTML;')
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@property
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def attrs(self) -> dict:
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attrs = self.page.driver.DOM.getAttributes(nodeId=self._node_id)['attributes']
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attrs_len = len(attrs)
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return {attrs[i]: attrs[i + 1] for i in range(0, attrs_len, 2)}
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@property
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def text(self) -> str:
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"""返回元素内所有文本"""
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return get_ele_txt(make_session_ele(self.html))
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@property
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def raw_text(self):
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"""返回未格式化处理的元素内文本"""
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return self.prop('innerText')
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# -----------------driver独有属性-------------------
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@property
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def obj_id(self) -> str:
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return self._obj_id
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@property
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def node_id(self) -> str:
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return self._node_id
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@property
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def size(self) -> dict:
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"""返回元素宽和高"""
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model = self.page.driver.DOM.getBoxModel(nodeId=self._node_id)['model']
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return {"height": model['height'], "width": model['width']}
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@property
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def client_location(self) -> dict:
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"""返回元素左上角坐标"""
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js = 'this.getBoundingClientRect().left.toString()+" "+this.getBoundingClientRect().top.toString();'
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xy = self.run_script(js)
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x, y = xy.split(' ')
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return {'x': int(x.split('.')[0]), 'y': int(y.split('.')[0])}
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@property
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def location(self) -> dict:
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"""返回元素左上角坐标"""
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js = '''function(){
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function getElementPagePosition(element){
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var actualLeft = element.offsetLeft;
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var current = element.offsetParent;
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while (current !== null){
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actualLeft += current.offsetLeft;
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current = current.offsetParent;
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}
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var actualTop = element.offsetTop;
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var current = element.offsetParent;
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while (current !== null){
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actualTop += (current.offsetTop+current.clientTop);
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current = current.offsetParent;
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}
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return actualLeft.toString() +' '+actualTop.toString();
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}
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return getElementPagePosition(this);}'''
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xy = self.run_script(js)
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x, y = xy.split(' ')
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return {'x': int(x.split('.')[0]), 'y': int(y.split('.')[0])}
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# @property
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# def shadow_root(self):
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# """返回当前元素的shadow_root元素对象"""
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# shadow = self.run_script('return arguments[0].shadowRoot')
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# if shadow:
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# from .shadow_root_element import ShadowRootElement
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# return ShadowRootElement(shadow, self)
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#
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# @property
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# def sr(self):
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# """返回当前元素的shadow_root元素对象"""
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# return self.shadow_root
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@property
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def pseudo_before(self) -> str:
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"""返回当前元素的::before伪元素内容"""
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return self.style('content', 'before')
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@property
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def pseudo_after(self) -> str:
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"""返回当前元素的::after伪元素内容"""
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return self.style('content', 'after')
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@property
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def scroll(self) -> 'ChromeScroll':
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"""用于滚动滚动条的对象"""
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if self._scroll is None:
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self._scroll = ChromeScroll(self)
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return self._scroll
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def parent(self, level_or_loc: Union[tuple, str, int] = 1) -> Union['ChromeElement', None]:
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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 \n
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:param level_or_loc: 第几级父元素，或定位符
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:return: 上级元素对象
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"""
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return super().parent(level_or_loc)
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def prev(self,
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index: int = 1,
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filter_loc: Union[tuple, str] = '',
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timeout: float = 0) -> Union['ChromeElement', str, None]:
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"""返回前面的一个兄弟元素，可用查询语法筛选，可指定返回筛选结果的第几个 \n
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:param index: 前面第几个查询结果元素
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:param filter_loc: 用于筛选元素的查询语法
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:param timeout: 查找元素的超时时间
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:return: 兄弟元素
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"""
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return super().prev(index, filter_loc, timeout)
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def next(self,
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index: int = 1,
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filter_loc: Union[tuple, str] = '',
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timeout: float = 0) -> Union['ChromeElement', str, None]:
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"""返回后面的一个兄弟元素，可用查询语法筛选，可指定返回筛选结果的第几个 \n
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:param index: 后面第几个查询结果元素
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:param filter_loc: 用于筛选元素的查询语法
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:param timeout: 查找元素的超时时间
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:return: 兄弟元素
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"""
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return super().next(index, filter_loc, timeout)
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def before(self,
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index: int = 1,
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filter_loc: Union[tuple, str] = '',
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timeout: float = None) -> Union['ChromeElement', str, None]:
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"""返回当前元素前面的一个元素，可指定筛选条件和第几个。查找范围不限兄弟元，而是整个DOM文档 \n
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:param index: 前面第几个查询结果元素
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:param filter_loc: 用于筛选元素的查询语法
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:param timeout: 查找元素的超时时间
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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 super().before(index, filter_loc, timeout)
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def after(self,
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index: int = 1,
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filter_loc: Union[tuple, str] = '',
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timeout: float = None) -> Union['ChromeElement', str, None]:
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"""返回当前元素后面的一个元素，可指定筛选条件和第几个。查找范围不限兄弟元，而是整个DOM文档 \n
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:param index: 后面第几个查询结果元素
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:param filter_loc: 用于筛选元素的查询语法
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:param timeout: 查找元素的超时时间
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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 super().after(index, filter_loc, timeout)
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def prevs(self,
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filter_loc: Union[tuple, str] = '',
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timeout: float = 0) -> List[Union['ChromeElement', str]]:
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"""返回前面全部兄弟元素或节点组成的列表，可用查询语法筛选 \n
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:param filter_loc: 用于筛选元素的查询语法
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:param timeout: 查找元素的超时时间
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:return: 兄弟元素或节点文本组成的列表
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"""
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return super().prevs(filter_loc, timeout)
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def nexts(self,
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filter_loc: Union[tuple, str] = '',
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timeout: float = 0) -> List[Union['ChromeElement', str]]:
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"""返回后面全部兄弟元素或节点组成的列表，可用查询语法筛选 \n
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:param filter_loc: 用于筛选元素的查询语法
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:param timeout: 查找元素的超时时间
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:return: 兄弟元素或节点文本组成的列表
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"""
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return super().nexts(filter_loc, timeout)
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def befores(self,
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filter_loc: Union[tuple, str] = '',
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timeout: float = None) -> List[Union['ChromeElement', str]]:
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"""返回当前元素后面符合条件的全部兄弟元素或节点组成的列表，可用查询语法筛选。查找范围不限兄弟元，而是整个DOM文档 \n
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:param filter_loc: 用于筛选元素的查询语法
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:param timeout: 查找元素的超时时间
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:return: 本元素前面的元素或节点组成的列表
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"""
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return super().befores(filter_loc, timeout)
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# def wait_ele(self,
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# loc_or_ele: Union[str, tuple, 'ChromeElement'],
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# timeout: float = None) -> 'ElementWaiter':
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# """等待子元素从dom删除、显示、隐藏 \n
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# :param loc_or_ele: 可以是元素、查询字符串、loc元组
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# :param timeout: 等待超时时间
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# :return: 等待是否成功
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# """
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# return ElementWaiter(self, loc_or_ele, timeout)
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@property
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def select(self):
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"""返回专门处理下拉列表的Select类，非下拉列表元素返回False"""
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if self._select is None:
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if self.tag != 'select':
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self._select = False
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else:
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self._select = ChromeSelect(self)
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return self._select
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@property
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def is_selected(self):
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return self.run_script('this.selected;')
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@property
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def is_in_view(self) -> bool:
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"""返回元素是否出现在视口中，已元素中点为判断"""
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js = """function(){
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const rect = this.getBoundingClientRect();
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x = rect.left+(rect.right-rect.left)/2;
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y = rect.top+(rect.bottom-rect.top)/2;
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const vWidth = window.innerWidth || document.documentElement.clientWidth;
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const vHeight = window.innerHeight || document.documentElement.clientHeight;
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if (x< 0 || y < 0 || x > vWidth || y > vHeight){return false;}
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return true;}"""
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return self.run_script(js)
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def attr(self, attr: str) -> Union[str, None]:
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"""返回attribute属性值 \n
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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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# 获取href属性时返回绝对url
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attrs = self.attrs
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if attr == 'href':
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link = attrs['href']
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if not link or link.lower().startswith(('javascript:', 'mailto:')):
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return link
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else:
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return make_absolute_link(link, self.page)
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elif attr == 'src':
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return make_absolute_link(attrs['src'], self.page)
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elif attr == 'text':
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return self.text
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elif attr == 'innerText':
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return self.raw_text
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elif attr in ('html', 'outerHTML'):
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return self.html
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elif attr == 'innerHTML':
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return self.inner_html
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else:
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return attrs.get(attr, None)
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def run_script(self, script: str, as_expr: bool = False, *args: Any) -> Any:
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"""运行javascript代码 \n
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:param script: js文本
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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 args: 参数，按顺序在js文本中对应argument[0]、argument[2]...
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:return: 运行的结果
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"""
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return _run_script(self, script, as_expr, *args)
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def ele(self,
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loc_or_str: Union[Tuple[str, str], str],
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timeout: float = None) -> Union['ChromeElement', str, None]:
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"""返回当前元素下级符合条件的第一个元素、属性或节点文本 \n
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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: 查找元素超时时间，默认与元素所在页面等待时间一致
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:return: ChromeElement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 eles(self,
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loc_or_str: Union[Tuple[str, str], str],
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timeout: float = None) -> List[Union['ChromeElement', str]]:
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"""返回当前元素下级所有符合条件的子元素、属性或节点文本 \n
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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: 查找元素超时时间，默认与元素所在页面等待时间一致
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:return: ChromeElement对象或属性、文本组成的列表
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"""
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return self._ele(loc_or_str, timeout=timeout, single=False)
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def s_ele(self, loc_or_str: Union[Tuple[str, str], str] = None) -> Union[SessionElement, str, None]:
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"""查找第一个符合条件的元素以SessionElement形式返回，处理复杂页面时效率很高 \n
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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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:return: SessionElement对象或属性、文本
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"""
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if self.tag in ('iframe', 'frame'):
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return make_session_ele(self.inner_html, loc_or_str)
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return make_session_ele(self, loc_or_str)
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def s_eles(self, loc_or_str: Union[Tuple[str, str], str] = None) -> List[Union[SessionElement, str]]:
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"""查找所有符合条件的元素以SessionElement列表形式返回 \n
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:param loc_or_str: 定位符
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:return: SessionElement或属性、文本组成的列表
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"""
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if self.tag in ('iframe', 'frame'):
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return make_session_ele(self.inner_html, loc_or_str, single=False)
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return make_session_ele(self, loc_or_str, single=False)
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def _ele(self,
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loc_or_str: Union[Tuple[str, str], str],
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timeout: float = None,
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single: bool = True) -> Union['ChromeElement', str, None, List[Union['ChromeElement', str]]]:
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"""返回当前元素下级符合条件的子元素、属性或节点文本，默认返回第一个 \n
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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: 查找元素超时时间
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:param single: True则返回第一个，False则返回全部
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:return: ChromeElement对象
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"""
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return make_chrome_ele(self, loc_or_str, single, timeout)
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def prop(self, prop: str) -> Union[str, int, None]:
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"""获取property属性值 \n
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:param prop: 属性名
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:return: 属性值文本
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"""
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p = self.page.driver.Runtime.getProperties(objectId=self._obj_id)['result']
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for i in p:
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if i['name'] == prop:
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if 'value' not in i or 'value' not in i['value']:
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return None
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return format_html(i['value']['value'])
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def set_prop(self, prop: str, value: str) -> None:
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"""设置元素property属性 \n
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:param prop: 属性名
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:param value: 属性值
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:return: 是否设置成功
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"""
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value = value.replace("'", "\\'")
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self.run_script(f'this.{prop}="{value}";')
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def set_attr(self, attr: str, value: str) -> None:
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"""设置元素attribute属性 \n
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:param attr: 属性名
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:param value: 属性值
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:return: 是否设置成功
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"""
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self.run_script(f'this.setAttribute(arguments[0], arguments[1]);', False, attr, str(value))
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def remove_attr(self, attr: str) -> None:
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"""删除元素attribute属性 \n
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:param attr: 属性名
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:return: 是否删除成功
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"""
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self.run_script(f'this.removeAttribute("{attr}");')
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def style(self, style: str, pseudo_ele: str = '') -> str:
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"""返回元素样式属性值，可获取伪元素属性值 \n
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||
:param style: 样式属性名称
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:param pseudo_ele: 伪元素名称（如有）
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:return: 样式属性的值
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"""
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if pseudo_ele:
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||
pseudo_ele = f', "{pseudo_ele}"' if pseudo_ele.startswith(':') else f', "::{pseudo_ele}"'
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||
js = f'function(){{return window.getComputedStyle(this{pseudo_ele}).getPropertyValue("{style}");}}'
|
||
return self.run_script(js)
|
||
|
||
def get_screenshot(self, path: [str, Path] = None,
|
||
as_bytes: [bool, str] = None) -> Union[str, bytes]:
|
||
"""对当前元素截图 \n
|
||
:param path: 完整路径，后缀可选'jpg','jpeg','png','webp'
|
||
:param as_bytes: 是否已字节形式返回图片，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
|
||
"""
|
||
if self.tag == 'img': # 等待图片加载完成
|
||
js = ('arguments[0].complete && typeof arguments[0].naturalWidth != "undefined" '
|
||
'&& arguments[0].naturalWidth > 0 && typeof arguments[0].naturalHeight != "undefined" '
|
||
'&& arguments[0].naturalHeight > 0')
|
||
t1 = perf_counter()
|
||
while not self.run_script(js) and perf_counter() - t1 < self.page.timeout:
|
||
pass
|
||
|
||
left, top = self.location.values()
|
||
height, width = self.size.values()
|
||
left_top = (left, top)
|
||
right_bottom = (left + width, top + height)
|
||
return self.page.get_screenshot(path, as_bytes=as_bytes, full_page=False,
|
||
left_top=left_top, right_bottom=right_bottom)
|
||
|
||
def clean(self, by_js: bool = True):
|
||
if by_js:
|
||
js = "this.value='';"
|
||
self.run_script(js)
|
||
|
||
else:
|
||
self.page.driver.DOM.focus(nodeId=self._node_id)
|
||
self.page.driver.Input.dispatchKeyEvent(type='char',
|
||
modifiers=2, code='KeyA')
|
||
|
||
# def input(self,
|
||
# vals: Union[str, tuple],
|
||
# clear: bool = True,
|
||
# insure: bool = True,
|
||
# timeout: float = None) -> bool:
|
||
# """输入文本或组合键，也可用于输入文件路径到input元素（文件间用\n间隔） \n
|
||
# :param vals: 文本值或按键组合
|
||
# :param clear: 输入前是否清空文本框
|
||
# :param insure: 确保输入正确，解决文本框有时输入失效的问题，不能用于输入组合键
|
||
# :param timeout: 尝试输入的超时时间，不指定则使用父页面的超时时间，只在insure为True时生效
|
||
# :return: bool
|
||
# """
|
||
# if not insure or self.tag != 'input' or self.prop('type') != 'text': # 普通输入
|
||
# if not isinstance(vals, (str, tuple)):
|
||
# vals = str(vals)
|
||
# if clear:
|
||
# self.inner_ele.clear()
|
||
#
|
||
# self.inner_ele.send_keys(*vals)
|
||
# return True
|
||
#
|
||
# else: # 确保输入正确
|
||
# if not isinstance(vals, str):
|
||
# vals = str(vals)
|
||
# enter = '\n' if vals.endswith('\n') else None
|
||
# full_txt = vals if clear else f'{self.attr("value")}{vals}'
|
||
# full_txt = full_txt.rstrip('\n')
|
||
#
|
||
# self.click(by_js=True)
|
||
# timeout = timeout if timeout is not None else self.page.timeout
|
||
# t1 = perf_counter()
|
||
# while self.is_valid() and self.attr('value') != full_txt and perf_counter() - t1 <= timeout:
|
||
# try:
|
||
# if clear:
|
||
# self.inner_ele.send_keys(u'\ue009', 'a', u'\ue017') # 有些ui下clear()不生效，用CTRL+a代替
|
||
# self.inner_ele.send_keys(vals)
|
||
#
|
||
# except Exception:
|
||
# pass
|
||
#
|
||
# if not self.is_valid():
|
||
# return False
|
||
# else:
|
||
# if self.attr('value') != full_txt:
|
||
# return False
|
||
# else:
|
||
# if enter:
|
||
# self.inner_ele.send_keys(enter)
|
||
# return True
|
||
|
||
def click(self, by_js: bool = None, timeout: float = None) -> bool:
|
||
"""点击元素 \n
|
||
尝试点击直到超时，若都失败就改用js点击 \n
|
||
:param by_js: 是否用js点击，为True时直接用js点击，为False时重试失败也不会改用js
|
||
:param timeout: 尝试点击的超时时间，不指定则使用父页面的超时时间
|
||
:return: 是否点击成功
|
||
"""
|
||
|
||
def do_it(cx, cy, lx, ly) -> bool:
|
||
r = self.page.driver.DOM.getNodeForLocation(x=lx + 1, y=ly + 1)
|
||
if r.get('nodeId') != self._node_id:
|
||
return False
|
||
self.page.driver.Input.dispatchMouseEvent(type='mousePressed', x=cx, y=cy, button='left', clickCount=1)
|
||
sleep(.1)
|
||
self.page.driver.Input.dispatchMouseEvent(type='mouseReleased', x=cx, y=cy, button='left')
|
||
return True
|
||
|
||
if not by_js:
|
||
self.page.scroll_to_see(self)
|
||
if self.is_in_view:
|
||
timeout = timeout if timeout is not None else self.page.timeout
|
||
xy = self.client_location
|
||
location = self.location
|
||
size = self.size
|
||
client_x = xy['x'] + size['width'] // 2
|
||
client_y = xy['y'] + size['height'] // 2
|
||
loc_x = location['x'] + size['width'] // 2
|
||
loc_y = location['y'] + size['height'] // 2
|
||
|
||
t1 = perf_counter()
|
||
click = do_it(client_x, client_y, loc_x, loc_y)
|
||
while not click and perf_counter() - t1 <= timeout:
|
||
click = do_it(client_x, client_y, location['x'], location['y'])
|
||
|
||
if click:
|
||
return True
|
||
|
||
if by_js is not False:
|
||
js = 'function(){this.click();}'
|
||
self.run_script(js)
|
||
return True
|
||
|
||
return False
|
||
|
||
def click_at(self):
|
||
pass
|
||
|
||
def _get_obj_id(self, node_id) -> str:
|
||
return self.page.driver.DOM.resolveNode(nodeId=node_id)['object']['objectId']
|
||
|
||
def _get_node_id(self, obj_id) -> str:
|
||
return self.page.driver.DOM.requestNode(objectId=obj_id)['nodeId']
|
||
|
||
@property
|
||
def is_valid(self):
|
||
return True
|
||
|
||
def _get_ele_path(self, mode) -> str:
|
||
"""返获取css路径或xpath路径"""
|
||
if mode == 'xpath':
|
||
txt1 = 'var tag = el.nodeName.toLowerCase();'
|
||
# txt2 = '''return '//' + tag + '[@id="' + el.id + '"]' + path;'''
|
||
txt3 = ''' && sib.nodeName.toLowerCase()==tag'''
|
||
txt4 = '''
|
||
if(nth>1){path = '/' + tag + '[' + nth + ']' + path;}
|
||
else{path = '/' + tag + path;}'''
|
||
txt5 = '''return path;'''
|
||
|
||
elif mode == 'css':
|
||
txt1 = ''
|
||
# txt2 = '''return '#' + el.id + path;'''
|
||
txt3 = ''
|
||
txt4 = '''path = '>' + ":nth-child(" + nth + ")" + path;'''
|
||
txt5 = '''return path.substr(1);'''
|
||
|
||
else:
|
||
raise ValueError(f"mode参数只能是'xpath'或'css'，现在是：'{mode}'。")
|
||
|
||
js = '''function(){
|
||
function e(el) {
|
||
if (!(el instanceof Element)) return;
|
||
var path = '';
|
||
while (el.nodeType === Node.ELEMENT_NODE) {
|
||
''' + txt1 + '''
|
||
var sib = el, nth = 0;
|
||
while (sib) {
|
||
if(sib.nodeType === Node.ELEMENT_NODE''' + txt3 + '''){nth += 1;}
|
||
sib = sib.previousSibling;
|
||
}
|
||
''' + txt4 + '''
|
||
el = el.parentNode;
|
||
}
|
||
''' + txt5 + '''
|
||
}
|
||
return e(this);}
|
||
'''
|
||
t = self.run_script(js)
|
||
return f':root{t}' if mode == 'css' else t
|
||
|
||
|
||
def make_chrome_ele(ele: ChromeElement,
|
||
loc: Union[str, Tuple[str, str]],
|
||
single: bool = True,
|
||
timeout: float = None) -> Union[ChromeElement, str, None, List[Union[ChromeElement, str]]]:
|
||
"""在chrome元素中查找 \n
|
||
:param ele: ChromeElement对象
|
||
:param loc: 元素定位元组
|
||
:param single: True则返回第一个，False则返回全部
|
||
:param timeout: 查找元素超时时间
|
||
:return: 返回ChromeElement元素或它们组成的列表
|
||
"""
|
||
# ---------------处理定位符---------------
|
||
if isinstance(loc, (str, tuple)):
|
||
loc = get_loc(loc)
|
||
else:
|
||
raise ValueError("定位符必须为str或长度为2的tuple对象。")
|
||
|
||
loc_str = loc[1]
|
||
if loc[0] == 'xpath' and loc[1].lstrip().startswith('/'):
|
||
loc_str = f'.{loc_str}'
|
||
elif loc[0] == 'css selector' and loc[1].lstrip().startswith('>'):
|
||
loc_str = f'{ele.css_path}{loc[1]}'
|
||
loc = loc[0], loc_str
|
||
|
||
timeout = timeout if timeout is not None else ele.page.timeout
|
||
|
||
# ---------------执行查找-----------------
|
||
if loc[0] == 'xpath':
|
||
return _find_by_xpath(ele, loc[1], single, timeout)
|
||
|
||
else:
|
||
return _find_by_css(ele, loc[1], single, timeout)
|
||
|
||
|
||
def _find_by_xpath(ele: ChromeElement, xpath: str, single: bool, timeout: float):
|
||
type_txt = '9' if single else '7'
|
||
node_txt = 'this.contentDocument' if ele.tag in ('iframe', 'frame') else 'this'
|
||
js = _make_js(xpath, type_txt, node_txt)
|
||
r = ele.page.run_cdp('Runtime.callFunctionOn',
|
||
functionDeclaration=js, objectId=ele.obj_id, returnByValue=False, awaitPromise=True,
|
||
userGesture=True)
|
||
if r['result']['type'] == 'string':
|
||
return r['result']['value']
|
||
|
||
if 'exceptionDetails' in r:
|
||
if 'The result is not a node set' in r['result']['description']:
|
||
js = _make_js(xpath, '1', node_txt)
|
||
r = ele.page.run_cdp('Runtime.callFunctionOn',
|
||
functionDeclaration=js, objectId=ele.obj_id, returnByValue=False, awaitPromise=True,
|
||
userGesture=True)
|
||
return r['result']['value']
|
||
else:
|
||
raise SyntaxError(f'查询语句错误：\n{r}')
|
||
|
||
t1 = perf_counter()
|
||
while (r['result']['subtype'] == 'null'
|
||
or r['result']['description'] == 'NodeList(0)') and perf_counter() - t1 < timeout:
|
||
r = ele.page.run_cdp('Runtime.callFunctionOn',
|
||
functionDeclaration=js, objectId=ele.obj_id, returnByValue=False, awaitPromise=True,
|
||
userGesture=True)
|
||
|
||
if single:
|
||
if r['result']['subtype'] == 'null':
|
||
return None
|
||
else:
|
||
return ChromeElement(ele.page, obj_id=r['result']['objectId'])
|
||
|
||
else:
|
||
if r['result']['description'] == 'NodeList(0)':
|
||
return []
|
||
else:
|
||
r = ele.page.driver.Runtime.getProperties(objectId=r['result']['objectId'], ownProperties=True)['result']
|
||
return [ChromeElement(ele.page, obj_id=i['value']['objectId'])
|
||
if i['value']['type'] == 'object' else i['value']['value']
|
||
for i in r[:-1]]
|
||
|
||
|
||
def _find_by_css(ele: ChromeElement, selector: str, single: bool, timeout: float):
|
||
selector = selector.replace('"', r'\"')
|
||
find_all = '' if single else 'All'
|
||
js = f'this.querySelector{find_all}("{selector}");'
|
||
r = ele.page.run_cdp('Runtime.callFunctionOn',
|
||
functionDeclaration=js, objectId=ele.obj_id, returnByValue=False, awaitPromise=True,
|
||
userGesture=True)
|
||
if 'exceptionDetails' in r:
|
||
raise SyntaxError(f'查询语句错误：\n{r}')
|
||
|
||
t1 = perf_counter()
|
||
while (r['result']['subtype'] == 'null'
|
||
or r['result']['description'] == 'NodeList(0)') and perf_counter() - t1 < timeout:
|
||
r = ele.page.run_cdp('Runtime.callFunctionOn',
|
||
functionDeclaration=js, objectId=ele.obj_id, returnByValue=False, awaitPromise=True,
|
||
userGesture=True)
|
||
|
||
if single:
|
||
if r['result']['subtype'] == 'null':
|
||
return None
|
||
else:
|
||
return ChromeElement(ele.page, obj_id=r['result']['objectId'])
|
||
|
||
else:
|
||
if r['result']['description'] == 'NodeList(0)':
|
||
return []
|
||
else:
|
||
r = ele.page.driver.Runtime.getProperties(objectId=r['result']['objectId'], ownProperties=True)['result']
|
||
return [ChromeElement(ele.page, obj_id=i['value']['objectId']) for i in r]
|
||
|
||
|
||
def _make_js(xpath: str, type_txt: str, node_txt: str):
|
||
for_txt = ''
|
||
|
||
# 获取第一个元素、节点或属性
|
||
if type_txt == '9':
|
||
return_txt = '''
|
||
if(e.singleNodeValue==null){return null;}
|
||
else if(e.singleNodeValue.constructor.name=="Text"){return e.singleNodeValue.data;}
|
||
else if(e.singleNodeValue.constructor.name=="Attr"){return e.singleNodeValue.nodeValue;}
|
||
else if(e.singleNodeValue.constructor.name=="Comment"){return e.singleNodeValue.nodeValue;}
|
||
else{return e.singleNodeValue;}'''
|
||
|
||
# 按顺序获取所有元素、节点或属性
|
||
elif type_txt == '7':
|
||
for_txt = """
|
||
var a=new Array();
|
||
for(var i = 0; i <e.snapshotLength ; i++){
|
||
if(e.snapshotItem(i).constructor.name=="Text"){a.push(e.snapshotItem(i).data);}
|
||
else if(e.snapshotItem(i).constructor.name=="Attr"){a.push(e.snapshotItem(i).nodeValue);}
|
||
else if(e.snapshotItem(i).constructor.name=="Comment"){a.push(e.snapshotItem(i).nodeValue);}
|
||
else{a.push(e.snapshotItem(i));}}"""
|
||
return_txt = 'return a;'
|
||
|
||
elif type_txt == '2':
|
||
return_txt = 'return e.stringValue;'
|
||
elif type_txt == '1':
|
||
return_txt = 'return e.numberValue;'
|
||
else:
|
||
return_txt = 'return e.singleNodeValue;'
|
||
|
||
js = f'function(){{var e=document.evaluate(\'{xpath}\',{node_txt},null,{type_txt},null);\n{for_txt}\n{return_txt}}}'
|
||
|
||
return js
|
||
|
||
|
||
def _run_script(page_or_ele, script: str, as_expr: bool = False, *args: Any) -> Any:
|
||
"""运行javascript代码 \n
|
||
:param page_or_ele: 页面对象或元素对象
|
||
:param script: js文本
|
||
:param as_expr: 是否作为表达式运行，为True时args无效
|
||
:param args: 参数，按顺序在js文本中对应argument[0]、argument[2]...
|
||
:return:
|
||
"""
|
||
if isinstance(page_or_ele, ChromeElement):
|
||
page = page_or_ele.page
|
||
obj_id = page_or_ele.obj_id
|
||
else:
|
||
page = page_or_ele
|
||
obj_id = page_or_ele.root.obj_id
|
||
|
||
if as_expr:
|
||
res = page.run_cdp('Runtime.evaluate',
|
||
expression=script,
|
||
returnByValue=False,
|
||
awaitPromise=True,
|
||
userGesture=True)
|
||
else:
|
||
if not is_js_func(script):
|
||
script = script if script.strip().startswith('return') else f'return {script}'
|
||
script = f'function(){{{script}}}'
|
||
res = page.run_cdp('Runtime.callFunctionOn',
|
||
functionDeclaration=script,
|
||
objectId=obj_id,
|
||
arguments=[_convert_argument(arg) for arg in args],
|
||
returnByValue=False,
|
||
awaitPromise=True,
|
||
userGesture=True)
|
||
|
||
exceptionDetails = res.get('exceptionDetails')
|
||
if exceptionDetails:
|
||
raise RuntimeError(f'Evaluation failed: {exceptionDetails}')
|
||
return _parse_js_result(page, res.get('result'))
|
||
|
||
|
||
def _parse_js_result(page, result: dict):
|
||
"""解析js返回的结果"""
|
||
if 'unserializableValue' in result:
|
||
return result['unserializableValue']
|
||
|
||
the_type = result['type']
|
||
|
||
if the_type == 'object':
|
||
sub_type = result['subtype']
|
||
if sub_type == 'null':
|
||
return None
|
||
|
||
elif sub_type == 'node':
|
||
return ChromeElement(page, obj_id=result['objectId'])
|
||
|
||
elif sub_type == 'array':
|
||
r = page.driver.Runtime.getProperties(objectId=result['result']['objectId'], ownProperties=True)['result']
|
||
return [_parse_js_result(page, result=i['value']) for i in r]
|
||
|
||
else:
|
||
return result['value']
|
||
|
||
elif the_type == 'undefined':
|
||
return None
|
||
|
||
# elif the_type in ('string', 'number', 'boolean'):
|
||
# return result['value']
|
||
|
||
else:
|
||
return result['value']
|
||
|
||
|
||
def _convert_argument(arg: Any) -> dict:
|
||
"""把参数转换成js能够接收的形式"""
|
||
if isinstance(arg, ChromeElement):
|
||
return {'objectId': arg.obj_id}
|
||
|
||
elif isinstance(arg, (int, float, str, bool)):
|
||
return {'value': arg}
|
||
|
||
from math import inf
|
||
if arg == inf:
|
||
return {'unserializableValue': 'Infinity'}
|
||
if arg == -inf:
|
||
return {'unserializableValue': '-Infinity'}
|
||
|
||
# objectHandle = arg if isinstance(arg, JSHandle) else None
|
||
# if objectHandle:
|
||
# if objectHandle._context != self:
|
||
# raise ElementHandleError('JSHandles can be evaluated only in the context they were created!')
|
||
# if objectHandle._disposed:
|
||
# raise ElementHandleError('JSHandle is disposed!')
|
||
# if objectHandle._remoteObject.get('unserializableValue'):
|
||
# return {'unserializableValue': objectHandle._remoteObject.get('unserializableValue')} # noqa: E501
|
||
# if not objectHandle._remoteObject.get('objectId'):
|
||
# return {'value': objectHandle._remoteObject.get('value')}
|
||
# return {'objectId': objectHandle._remoteObject.get('objectId')}
|
||
# return {'value': arg}
|
||
|
||
|
||
class ChromeScroll(object):
|
||
"""用于滚动的对象"""
|
||
|
||
def __init__(self, page_or_ele):
|
||
"""
|
||
:param page_or_ele: ChromePage或ChromeElement
|
||
"""
|
||
if isinstance(page_or_ele, ChromeElement):
|
||
self.t1 = self.t2 = 'this'
|
||
self.obj_id = page_or_ele.obj_id
|
||
self.page = page_or_ele.page
|
||
else:
|
||
self.t1 = 'window'
|
||
self.t2 = 'document.documentElement'
|
||
self.obj_id = None
|
||
self.page = page_or_ele
|
||
|
||
def _run_script(self, js: str):
|
||
js = js.format(self.t1, self.t2, self.t2)
|
||
if self.obj_id:
|
||
self.page.run_script(js)
|
||
else:
|
||
self.page.driver.Runtime.evaluate(expression=js)
|
||
|
||
def to_top(self) -> None:
|
||
"""滚动到顶端，水平位置不变"""
|
||
self._run_script('{}.scrollTo({}.scrollLeft,0);')
|
||
|
||
def to_bottom(self) -> None:
|
||
"""滚动到底端，水平位置不变"""
|
||
self._run_script('{}.scrollTo({}.scrollLeft,{}.scrollHeight);')
|
||
|
||
def to_half(self) -> None:
|
||
"""滚动到垂直中间位置，水平位置不变"""
|
||
self._run_script('{}.scrollTo({}.scrollLeft,{}.scrollHeight/2);')
|
||
|
||
def to_rightmost(self) -> None:
|
||
"""滚动到最右边，垂直位置不变"""
|
||
self._run_script('{}.scrollTo({}.scrollWidth,{}.scrollTop);')
|
||
|
||
def to_leftmost(self) -> None:
|
||
"""滚动到最左边，垂直位置不变"""
|
||
self._run_script('{}.scrollTo(0,{}.scrollTop);')
|
||
|
||
def to_location(self, x: int, y: int) -> None:
|
||
"""滚动到指定位置 \n
|
||
:param x: 水平距离
|
||
:param y: 垂直距离
|
||
:return: None
|
||
"""
|
||
self._run_script(f'{{}}.scrollTo({x},{y});')
|
||
|
||
def up(self, pixel: int = 300) -> None:
|
||
"""向上滚动若干像素，水平位置不变 \n
|
||
:param pixel: 滚动的像素
|
||
:return: None
|
||
"""
|
||
pixel = -pixel
|
||
self._run_script(f'{{}}.scrollBy(0,{pixel});')
|
||
|
||
def down(self, pixel: int = 300) -> None:
|
||
"""向下滚动若干像素，水平位置不变 \n
|
||
:param pixel: 滚动的像素
|
||
:return: None
|
||
"""
|
||
self._run_script(f'{{}}.scrollBy(0,{pixel});')
|
||
|
||
def left(self, pixel: int = 300) -> None:
|
||
"""向左滚动若干像素，垂直位置不变 \n
|
||
:param pixel: 滚动的像素
|
||
:return: None
|
||
"""
|
||
pixel = -pixel
|
||
self._run_script(f'{{}}.scrollBy({pixel},0);')
|
||
|
||
def right(self, pixel: int = 300) -> None:
|
||
"""向右滚动若干像素，垂直位置不变 \n
|
||
:param pixel: 滚动的像素
|
||
:return: None
|
||
"""
|
||
self._run_script(f'{{}}.scrollBy({pixel},0);')
|
||
|
||
|
||
class ChromeSelect(object):
|
||
"""ChromeSelect 类专门用于处理 d 模式下 select 标签"""
|
||
|
||
def __init__(self, ele: ChromeElement):
|
||
"""初始化 \n
|
||
:param ele: select 元素对象
|
||
"""
|
||
if ele.tag != 'select':
|
||
raise TypeError(f"select方法只能在<select>元素使用，现在是：{ele.tag}。")
|
||
|
||
self._ele = ele
|
||
|
||
def __call__(self, text_or_index: Union[str, int, list, tuple], timeout=None) -> bool:
|
||
"""选定下拉列表中子元素 \n
|
||
:param text_or_index: 根据文本、值选或序号择选项，若允许多选，传入list或tuple可多选
|
||
:param timeout: 超时时间，不输入默认实用页面超时时间
|
||
:return: None
|
||
"""
|
||
i = 'index' if isinstance(text_or_index, int) else 'text'
|
||
timeout = timeout if timeout is not None else self._ele.page.timeout
|
||
return self._select(text_or_index, timeout=timeout)
|
||
|
||
@property
|
||
def is_multi(self) -> bool:
|
||
"""返回是否多选表单"""
|
||
multi = self._ele.attr('multiple')
|
||
return multi and multi.lower() != "false"
|
||
|
||
@property
|
||
def options(self) -> List[ChromeElement]:
|
||
"""返回所有选项元素组成的列表"""
|
||
return self._ele.eles('tag:option')
|
||
|
||
@property
|
||
def selected_option(self) -> Union[ChromeElement, None]:
|
||
"""返回第一个被选中的option元素 \n
|
||
:return: ChromeElement对象或None
|
||
"""
|
||
ele = self._ele.run_script('this.options[this.selectedIndex];')
|
||
return ele
|
||
|
||
@property
|
||
def selected_options(self) -> List[ChromeElement]:
|
||
"""返回所有被选中的option元素列表 \n
|
||
:return: ChromeElement对象组成的列表
|
||
"""
|
||
return [x for x in self.options if x.is_selected]
|
||
|
||
def clear(self) -> None:
|
||
"""清除所有已选项"""
|
||
self.select_ele.deselect_all()
|
||
|
||
def select_by_text(self, text: Union[str, list, tuple], timeout=None) -> bool:
|
||
"""此方法用于根据text值选择项。当元素是多选列表时，可以接收list或tuple \n
|
||
:param text: text属性值，传入list或tuple可选择多项
|
||
:param timeout: 超时时间，不输入默认实用页面超时时间
|
||
:return: None
|
||
"""
|
||
timeout = timeout if timeout is not None else self._ele.page.timeout
|
||
return self._select(text, 'text', False, timeout)
|
||
|
||
def select_by_value(self, value: Union[str, list, tuple], timeout=None) -> bool:
|
||
"""此方法用于根据value值选择项。当元素是多选列表时，可以接收list或tuple \n
|
||
:param value: value属性值，传入list或tuple可选择多项
|
||
:param timeout: 超时时间，不输入默认实用页面超时时间
|
||
:return: None
|
||
"""
|
||
timeout = timeout if timeout is not None else self._ele.page.timeout
|
||
return self._select(value, 'value', False, timeout)
|
||
|
||
def select_by_index(self, index: Union[int, list, tuple], timeout=None) -> bool:
|
||
"""此方法用于根据index值选择项。当元素是多选列表时，可以接收list或tuple \n
|
||
:param index: index属性值，传入list或tuple可选择多项
|
||
:param timeout: 超时时间，不输入默认实用页面超时时间
|
||
:return: None
|
||
"""
|
||
timeout = timeout if timeout is not None else self._ele.page.timeout
|
||
return self._select(index, 'index', False, timeout)
|
||
|
||
def deselect_by_text(self, text: Union[str, list, tuple], timeout=None) -> bool:
|
||
"""此方法用于根据text值取消选择项。当元素是多选列表时，可以接收list或tuple \n
|
||
:param text: text属性值，传入list或tuple可取消多项
|
||
:param timeout: 超时时间，不输入默认实用页面超时时间
|
||
:return: None
|
||
"""
|
||
timeout = timeout if timeout is not None else self._ele.page.timeout
|
||
return self._select(text, 'text', True, timeout)
|
||
|
||
def deselect_by_value(self, value: Union[str, list, tuple], timeout=None) -> bool:
|
||
"""此方法用于根据value值取消选择项。当元素是多选列表时，可以接收list或tuple \n
|
||
:param value: value属性值，传入list或tuple可取消多项
|
||
:param timeout: 超时时间，不输入默认实用页面超时时间
|
||
:return: None
|
||
"""
|
||
timeout = timeout if timeout is not None else self._ele.page.timeout
|
||
return self._select(value, 'value', True, timeout)
|
||
|
||
def deselect_by_index(self, index: Union[int, list, tuple], timeout=None) -> bool:
|
||
"""此方法用于根据index值取消选择项。当元素是多选列表时，可以接收list或tuple \n
|
||
:param index: value属性值，传入list或tuple可取消多项
|
||
:param timeout: 超时时间，不输入默认实用页面超时时间
|
||
:return: None
|
||
"""
|
||
timeout = timeout if timeout is not None else self._ele.page.timeout
|
||
return self._select(index, 'index', True, timeout)
|
||
|
||
def invert(self) -> None:
|
||
"""反选"""
|
||
if not self.is_multi:
|
||
raise NotImplementedError("只能对多项选框执行反选。")
|
||
|
||
for i in self.options:
|
||
i.click(by_js=True)
|
||
|
||
def _select(self,
|
||
text_value_index: Union[str, int, list, tuple] = None,
|
||
para_type: str = 'text',
|
||
deselect: bool = False,
|
||
timeout=None) -> bool:
|
||
"""选定或取消选定下拉列表中子元素 \n
|
||
:param text_value_index: 根据文本、值选或序号择选项，若允许多选，传入list或tuple可多选
|
||
:param para_type: 参数类型，可选 'text'、'value'、'index'
|
||
:param deselect: 是否取消选择
|
||
:return: 是否选择成功
|
||
"""
|
||
if not self.is_multi and isinstance(text_value_index, (list, tuple)):
|
||
raise TypeError('单选下拉列表不能传入list和tuple')
|
||
|
||
def do_select():
|
||
if para_type == 'text':
|
||
ele = self._ele(f'tx={text_value_index}', timeout=0)
|
||
elif para_type == 'value':
|
||
ele = self._ele(f'@value={text_value_index}', timeout=0)
|
||
elif para_type == 'index':
|
||
ele = self._ele(f'x:.//option[{int(text_value_index)}]', timeout=0)
|
||
else:
|
||
raise ValueError('para_type参数只能传入"text"、"value"或"index"。')
|
||
|
||
if not ele:
|
||
return False
|
||
|
||
js = 'false' if deselect else 'true'
|
||
ele.run_script(f'this.selected={js};')
|
||
|
||
return True
|
||
|
||
if isinstance(text_value_index, (str, int)):
|
||
t1 = perf_counter()
|
||
ok = do_select()
|
||
while not ok and perf_counter() - t1 < timeout:
|
||
sleep(.2)
|
||
ok = do_select()
|
||
return ok
|
||
|
||
elif isinstance(text_value_index, (list, tuple)):
|
||
return self._select_multi(text_value_index, para_type, deselect)
|
||
|
||
else:
|
||
raise TypeError('只能传入str、int、list和tuple类型。')
|
||
|
||
def _select_multi(self,
|
||
text_value_index: Union[list, tuple] = None,
|
||
para_type: str = 'text',
|
||
deselect: bool = False) -> bool:
|
||
"""选定或取消选定下拉列表中多个子元素 \n
|
||
:param text_value_index: 根据文本、值选或序号择选多项
|
||
:param para_type: 参数类型，可选 'text'、'value'、'index'
|
||
:param deselect: 是否取消选择
|
||
:return: 是否选择成功
|
||
"""
|
||
if para_type not in ('text', 'value', 'index'):
|
||
raise ValueError('para_type参数只能传入“text”、“value”或“index”')
|
||
|
||
if not isinstance(text_value_index, (list, tuple)):
|
||
raise TypeError('只能传入list或tuple类型。')
|
||
|
||
success = True
|
||
for i in text_value_index:
|
||
if not isinstance(i, (int, str)):
|
||
raise TypeError('列表只能由str或int组成')
|
||
|
||
p = 'index' if isinstance(i, int) else para_type
|
||
if not self._select(i, p, deselect):
|
||
success = False
|
||
|
||
return success
|
||
|
||
# class ElementWaiter(object):
|
||
# """等待元素在dom中某种状态，如删除、显示、隐藏"""
|
||
#
|
||
# def __init__(self,
|
||
# page_or_ele,
|
||
# loc_or_ele: Union[str, tuple, ChromeElement],
|
||
# timeout: float = None):
|
||
# """等待元素在dom中某种状态，如删除、显示、隐藏 \n
|
||
# :param page_or_ele: 页面或父元素
|
||
# :param loc_or_ele: 要等待的元素，可以是已有元素、定位符
|
||
# :param timeout: 超时时间，默认读取页面超时时间
|
||
# """
|
||
# if isinstance(page_or_ele, ChromeElement):
|
||
# page = page_or_ele.page
|
||
# self.driver = page_or_ele.inner_ele
|
||
# else:
|
||
# page = page_or_ele
|
||
# self.driver = page_or_ele.driver
|
||
#
|
||
# if isinstance(loc_or_ele, ChromeElement):
|
||
# self.target = loc_or_ele.inner_ele
|
||
#
|
||
# elif isinstance(loc_or_ele, str):
|
||
# self.target = str_to_loc(loc_or_ele)
|
||
#
|
||
# elif isinstance(loc_or_ele, tuple):
|
||
# self.target = loc_or_ele
|
||
#
|
||
# else:
|
||
# raise TypeError('loc_or_ele参数只能是str、tuple、DriverElement 或 WebElement类型。')
|
||
#
|
||
# self.timeout = timeout if timeout is not None else page.timeout
|
||
#
|
||
# def delete(self) -> bool:
|
||
# """等待元素从dom删除"""
|
||
# return self._wait_ele('del')
|
||
#
|
||
# def display(self) -> bool:
|
||
# """等待元素从dom显示"""
|
||
# return self._wait_ele('display')
|
||
#
|
||
# def hidden(self) -> bool:
|
||
# """等待元素从dom隐藏"""
|
||
# return self._wait_ele('hidden')
|
||
#
|
||
# def _wait_ele(self, mode: str) -> bool:
|
||
# """执行等待
|
||
# :param mode: 等待模式
|
||
# :return: 是否等待成功
|
||
# """
|
||
# if isinstance(self.target, WebElement):
|
||
# end_time = time() + self.timeout
|
||
# while time() < end_time:
|
||
# if mode == 'del':
|
||
# try:
|
||
# self.target.is_enabled()
|
||
# except Exception:
|
||
# return True
|
||
#
|
||
# elif mode == 'display' and self.target.is_displayed():
|
||
# return True
|
||
#
|
||
# elif mode == 'hidden' and not self.target.is_displayed():
|
||
# return True
|
||
#
|
||
# return False
|
||
#
|
||
# else:
|
||
# try:
|
||
# if mode == 'del':
|
||
# WebDriverWait(self.driver, self.timeout).until_not(ec.presence_of_element_located(self.target))
|
||
#
|
||
# elif mode == 'display':
|
||
# WebDriverWait(self.driver, self.timeout).until(ec.visibility_of_element_located(self.target))
|
||
#
|
||
# elif mode == 'hidden':
|
||
# WebDriverWait(self.driver, self.timeout).until_not(ec.visibility_of_element_located(self.target))
|
||
#
|
||
# return True
|
||
#
|
||
# except Exception:
|
||
# return False
|