3.2.8增加录屏功能

DrissionPage/chromium_base.py

@@ -3,9 +3,11 @@
 @Author  :   g1879
 @Contact :   g1879@qq.com
 """
+from base64 import b64decode
 from json import loads, JSONDecodeError
+from os import sep
 from pathlib import Path
-from time import perf_counter, sleep
+from time import perf_counter, sleep, time
 from warnings import warn
 
 from requests import Session
@@ -15,7 +17,7 @@ from .chromium_driver import ChromiumDriver
 from .chromium_element import ChromiumScroll, ChromiumElement, run_js, make_chromium_ele, ChromiumElementWaiter
 from .commons.constants import HANDLE_ALERT_METHOD, ERROR, NoneElement
 from .commons.locator import get_loc
-from .commons.tools import get_usable_path
+from .commons.tools import get_usable_path, clean_folder
 from .commons.web import cookies_to_tuple
 from .errors import ContextLossError, ElementLossError, AlertExistsError, CallMethodError, TabClosedError, \
     NoRectError, BrowserConnectError
@@ -37,6 +39,7 @@ class ChromiumBase(BasePage):
         self._debug_recorder = None
         self._tab_obj = None
         self._set = None
+        self._screencast = None
 
         self._set_start_options(address, None)
         self._set_runtime_settings()
@@ -324,6 +327,13 @@ class ChromiumBase(BasePage):
             self._set = ChromiumBaseSetter(self)
         return self._set
 
+    @property
+    def screencast(self):
+        """返回用于录屏的对象"""
+        if self._screencast is None:
+            self._screencast = Screencast(self)
+        return self._screencast
+
     def run_cdp(self, cmd, **cmd_args):
         """执行Chrome DevTools Protocol语句
         :param cmd: 协议项目
@@ -803,6 +813,89 @@ class ChromiumBase(BasePage):
         return self.set.load_strategy
 
 
+class Screencast(object):
+    def __init__(self, page):
+        self._page = page
+        self._path = None
+        self._quality = 100
+
+    def start(self, save_path=None, quality=None):
+        """开始录屏
+        :param save_path: 录屏保存位置
+        :param quality: 录屏质量
+        :return: None
+        """
+        self.set(save_path, quality)
+        if self._path is None:
+            raise ValueError('save_path必须设置。')
+        if not self._path.isascii():
+            raise TypeError('仅支持英文路径。')
+        clean_folder(self._path)
+        self._page.driver.Page.screencastFrame = self._onScreencastFrame
+        self._page.run_cdp('Page.startScreencast', everyNthFrame=1, quality=self._quality)
+
+    def stop(self, to_mp4=True, video_name=None):
+        """停止录屏
+        :param to_mp4: 是否合并成MP4格式
+        :param video_name: 视频文件名，为None时以当前时间名命
+        :return: 文件路径
+        """
+        self._page.driver.Page.screencastFrame = None
+        self._page.run_cdp('Page.stopScreencast')
+        if not to_mp4:
+            return str(Path(self._path).absolute())
+
+        if not str(video_name).isascii():
+            raise TypeError('仅支持英文文件名。')
+
+        try:
+            from cv2 import VideoWriter, imread
+            from numpy import fromfile, uint8
+        except ModuleNotFoundError:
+            raise ModuleNotFoundError('请先安装cv2，pip install opencv-python')
+
+        pic_list = Path(self._path).glob('*.jpg')
+        img = imread(str(next(pic_list)))
+        imgInfo = img.shape
+        size = (imgInfo[1], imgInfo[0])
+
+        if video_name and not video_name.endswith('mp4'):
+            video_name = f'{video_name}.mp4'
+        name = f'{time()}.mp4' if not video_name else video_name
+        fourcc = 14
+        videoWrite = VideoWriter(f'{self._path}{sep}{name}', fourcc, 8, size)
+
+        for i in pic_list:
+            img = imread(str(i))
+            videoWrite.write(img)
+
+        clean_folder(self._path, ignore=(name,))
+        return f'{self._path}{sep}{name}'
+
+    def set(self, save_path=None, quality=None):
+        """设置录屏参数
+        :param save_path: 保存路径
+        :param quality: 视频质量，可取值0-100
+        :return:
+        """
+        if save_path:
+            save_path = Path(save_path)
+            if save_path.exists() and save_path.is_file():
+                raise TypeError('save_path必须指定文件夹。')
+            save_path.mkdir(parents=True, exist_ok=True)
+            self._path = str(save_path)
+
+        if quality is not None:
+            if quality < 0 or quality > 100:
+                raise ValueError('quality必须在0-100之间。')
+            self._quality = quality
+
+    def _onScreencastFrame(self, **kwargs):
+        with open(f'{self._path}\\{kwargs["metadata"]["timestamp"]}.jpg', 'wb') as f:
+            f.write(b64decode(kwargs['data']))
+        self._page.run_cdp('Page.screencastFrameAck', sessionId=kwargs['sessionId'])
+
+
 class ChromiumBaseSetter(object):
     def __init__(self, page):
         self._page = page

DrissionPage/chromium_base.pyi

@@ -40,6 +40,7 @@ class ChromiumBase(BasePage):
         self._upload_list: list = ...
         self._wait: ChromiumBaseWaiter = ...
         self._set: ChromiumBaseSetter = ...
+        self._screencast: Screencast = ...
 
     def _connect_browser(self, tab_id: str = None) -> None: ...
 
@@ -118,6 +119,9 @@ class ChromiumBase(BasePage):
     @property
     def set(self) -> ChromiumBaseSetter: ...
 
+    @property
+    def screencast(self) -> Screencast: ...
+
     def run_js(self, script: str, *args: Any, as_expr: bool = False) -> Any: ...
 
     def run_js_loaded(self, script: str, *args: Any, as_expr: bool = False) -> Any: ...
@@ -193,6 +197,21 @@ class ChromiumBase(BasePage):
                    timeout: float = None) -> Union[bool, None]: ...
 
 
+class Screencast(object):
+    def __init__(self, page: ChromiumBase):
+        self._page: ChromiumBase = ...
+        self._path: str = ...
+        self._quality: int = ...
+
+    def start(self, save_path: Union[str, Path] = None, quality: int = None) -> None: ...
+
+    def stop(self, to_mp4: bool = True, video_name: str = None) -> str: ...
+
+    def set(self, save_path: Union[str, Path] = None, quality: int = None) -> None: ...
+
+    def _onScreencastFrame(self, **kwargs) -> None: ...
+
+
 class ChromiumBaseWaiter(object):
     def __init__(self, page: ChromiumBase):
         self._driver: ChromiumBase = ...

DrissionPage/chromium_driver.py

@@ -149,9 +149,8 @@ class ChromiumDriver(object):
             if event['method'] in self.event_handlers:
                 try:
                     self.event_handlers[event['method']](**event['params'])
-                except Exception:
+                except Exception as e:
-                    pass
+                    raise RuntimeError(f"\n回调函数 {self.event_handlers[event['method']].__name__} 错误：\n{e}")
-                    # raise RuntimeError(f"回调函数 {event['method']} 错误：{e}")
 
             self.event_queue.task_done()
 

DrissionPage/commons/tools.pyi

@@ -25,7 +25,7 @@ def get_long(txt) -> int: ...
 def port_is_using(ip: str, port: Union[str, int]) -> bool: ...
 
 
-def clean_folder(folder_path: Union[str, Path], ignore: list = None) -> None: ...
+def clean_folder(folder_path: Union[str, Path], ignore: Union[tuple, list] = None) -> None: ...
 
 
 def unzip(zip_path: str, to_path: str) -> Union[list, None]: ...

DrissionPage/web_page.py

@@ -47,6 +47,7 @@ class WebPage(SessionPage, ChromiumPage, BasePage):
         self._response = None
         self._download_set = None
         self._set = None
+        self._screencast = None
 
         self._set_start_options(driver_or_options, session_or_options)
         self._set_runtime_settings()

setup.py

@@ -6,7 +6,7 @@ with open("README.md", "r", encoding='utf-8') as fh:
 
 setup(
     name="DrissionPage",
-    version="3.2.7",
+    version="3.2.8",
     author="g1879",
     author_email="g1879@qq.com",
     description="Python based web automation tool. It can control the browser and send and receive data packets.",