How to use from_nullable_channel method in Playwright Python
Best Python code snippet using playwright-python
_page.py
Source:_page.py 
...284 @property285 def context(self) -> "BrowserContext":286 return self._browser_context287 async def opener(self) -> Optional["Page"]:288 return from_nullable_channel(await self._channel.send("opener"))289 @property290 def main_frame(self) -> Frame:291 return self._main_frame292 def frame(self, name: str = None, url: URLMatch = None) -> Optional[Frame]:293 matcher = URLMatcher(url) if url else None294 for frame in self._frames:295 if name and frame.name == name:296 return frame297 if url and matcher and matcher.matches(frame.url):298 return frame299 return None300 @property301 def frames(self) -> List[Frame]:302 return self._frames.copy()303 def set_default_navigation_timeout(self, timeout: float) -> None:304 self._timeout_settings.set_navigation_timeout(timeout)305 self._channel.send_no_reply(306 "setDefaultNavigationTimeoutNoReply", dict(timeout=timeout)307 )308 def set_default_timeout(self, timeout: float) -> None:309 self._timeout_settings.set_timeout(timeout)310 self._channel.send_no_reply("setDefaultTimeoutNoReply", dict(timeout=timeout))311 async def query_selector(self, selector: str) -> Optional[ElementHandle]:312 return await self._main_frame.query_selector(selector)313 async def query_selector_all(self, selector: str) -> List[ElementHandle]:314 return await self._main_frame.query_selector_all(selector)315 async def wait_for_selector(316 self,317 selector: str,318 timeout: float = None,319 state: Literal["attached", "detached", "hidden", "visible"] = None,320 ) -> Optional[ElementHandle]:321 return await self._main_frame.wait_for_selector(**locals_to_params(locals()))322 async def is_checked(self, selector: str, timeout: float = None) -> bool:323 return await self._main_frame.is_checked(**locals_to_params(locals()))324 async def is_disabled(self, selector: str, timeout: float = None) -> bool:325 return await self._main_frame.is_disabled(**locals_to_params(locals()))326 async def is_editable(self, selector: str, timeout: float = None) -> bool:327 return await self._main_frame.is_editable(**locals_to_params(locals()))328 async def is_enabled(self, selector: str, timeout: float = None) -> bool:329 return await self._main_frame.is_enabled(**locals_to_params(locals()))330 async def is_hidden(self, selector: str, timeout: float = None) -> bool:331 return await self._main_frame.is_hidden(**locals_to_params(locals()))332 async def is_visible(self, selector: str, timeout: float = None) -> bool:333 return await self._main_frame.is_visible(**locals_to_params(locals()))334 async def dispatch_event(335 self, selector: str, type: str, eventInit: Dict = None, timeout: float = None336 ) -> None:337 return await self._main_frame.dispatch_event(**locals_to_params(locals()))338 async def evaluate(self, expression: str, arg: Serializable = None) -> Any:339 return await self._main_frame.evaluate(expression, arg)340 async def evaluate_handle(341 self, expression: str, arg: Serializable = None342 ) -> JSHandle:343 return await self._main_frame.evaluate_handle(expression, arg)344 async def eval_on_selector(345 self,346 selector: str,347 expression: str,348 arg: Serializable = None,349 ) -> Any:350 return await self._main_frame.eval_on_selector(selector, expression, arg)351 async def eval_on_selector_all(352 self,353 selector: str,354 expression: str,355 arg: Serializable = None,356 ) -> Any:357 return await self._main_frame.eval_on_selector_all(selector, expression, arg)358 async def add_script_tag(359 self,360 url: str = None,361 path: Union[str, Path] = None,362 content: str = None,363 type: str = None,364 ) -> ElementHandle:365 return await self._main_frame.add_script_tag(**locals_to_params(locals()))366 async def add_style_tag(367 self, url: str = None, path: Union[str, Path] = None, content: str = None368 ) -> ElementHandle:369 return await self._main_frame.add_style_tag(**locals_to_params(locals()))370 async def expose_function(self, name: str, callback: Callable) -> None:371 await self.expose_binding(name, lambda source, *args: callback(*args))372 async def expose_binding(373 self, name: str, callback: Callable, handle: bool = None374 ) -> None:375 if name in self._bindings:376 raise Error(f'Function "{name}" has been already registered')377 if name in self._browser_context._bindings:378 raise Error(379 f'Function "{name}" has been already registered in the browser context'380 )381 self._bindings[name] = callback382 await self._channel.send(383 "exposeBinding", dict(name=name, needsHandle=handle or False)384 )385 async def set_extra_http_headers(self, headers: Dict[str, str]) -> None:386 await self._channel.send(387 "setExtraHTTPHeaders", dict(headers=serialize_headers(headers))388 )389 @property390 def url(self) -> str:391 return self._main_frame.url392 async def content(self) -> str:393 return await self._main_frame.content()394 async def set_content(395 self,396 html: str,397 timeout: float = None,398 waitUntil: DocumentLoadState = None,399 ) -> None:400 return await self._main_frame.set_content(**locals_to_params(locals()))401 async def goto(402 self,403 url: str,404 timeout: float = None,405 waitUntil: DocumentLoadState = None,406 referer: str = None,407 ) -> Optional[Response]:408 return await self._main_frame.goto(**locals_to_params(locals()))409 async def reload(410 self,411 timeout: float = None,412 waitUntil: DocumentLoadState = None,413 ) -> Optional[Response]:414 return from_nullable_channel(415 await self._channel.send("reload", locals_to_params(locals()))416 )417 async def wait_for_load_state(418 self, state: DocumentLoadState = None, timeout: float = None419 ) -> None:420 return await self._main_frame.wait_for_load_state(**locals_to_params(locals()))421 async def wait_for_event(422 self, event: str, predicate: Callable = None, timeout: float = None423 ) -> Any:424 async with self.expect_event(event, predicate, timeout) as event_info:425 pass426 return await event_info427 async def go_back(428 self,429 timeout: float = None,430 waitUntil: DocumentLoadState = None,431 ) -> Optional[Response]:432 return from_nullable_channel(433 await self._channel.send("goBack", locals_to_params(locals()))434 )435 async def go_forward(436 self,437 timeout: float = None,438 waitUntil: DocumentLoadState = None,439 ) -> Optional[Response]:440 return from_nullable_channel(441 await self._channel.send("goForward", locals_to_params(locals()))442 )443 async def emulate_media(444 self,445 media: Literal["print", "screen"] = None,446 colorScheme: ColorScheme = None,447 ) -> None:448 await self._channel.send("emulateMedia", locals_to_params(locals()))449 async def set_viewport_size(self, viewportSize: ViewportSize) -> None:450 self._viewport_size = viewportSize451 await self._channel.send("setViewportSize", locals_to_params(locals()))452 @property453 def viewport_size(self) -> Optional[ViewportSize]:454 return self._viewport_size...
_frame.py
Source:_frame.py
...54 def __init__(55 self, parent: ChannelOwner, type: str, guid: str, initializer: Dict56 ) -> None:57 super().__init__(parent, type, guid, initializer)58 self._parent_frame = from_nullable_channel(initializer.get("parentFrame"))59 if self._parent_frame:60 self._parent_frame._child_frames.append(self)61 self._name = initializer["name"]62 self._url = initializer["url"]63 self._detached = False64 self._child_frames: List[Frame] = []65 self._page: "Page"66 self._load_states: Set[str] = set(initializer["loadStates"])67 self._event_emitter = EventEmitter()68 self._channel.on(69 "loadstate",70 lambda params: self._on_load_state(params.get("add"), params.get("remove")),71 )72 self._channel.on(73 "navigated",74 lambda params: self._on_frame_navigated(params),75 )76 def _on_load_state(77 self, add: DocumentLoadState = None, remove: DocumentLoadState = None78 ) -> None:79 if add:80 self._load_states.add(add)81 self._event_emitter.emit("loadstate", add)82 elif remove and remove in self._load_states:83 self._load_states.remove(remove)84 def _on_frame_navigated(self, event: FrameNavigatedEvent) -> None:85 self._url = event["url"]86 self._name = event["name"]87 self._event_emitter.emit("navigated", event)88 if "error" not in event and hasattr(self, "_page") and self._page:89 self._page.emit("framenavigated", self)90 @property91 def page(self) -> "Page":92 return self._page93 async def goto(94 self,95 url: str,96 timeout: float = None,97 waitUntil: DocumentLoadState = None,98 referer: str = None,99 ) -> Optional[Response]:100 return cast(101 Optional[Response],102 from_nullable_channel(103 await self._channel.send("goto", locals_to_params(locals()))104 ),105 )106 def _setup_navigation_wait_helper(self, timeout: float = None) -> WaitHelper:107 wait_helper = WaitHelper(self._loop)108 wait_helper.reject_on_event(109 self._page, "close", Error("Navigation failed because page was closed!")110 )111 wait_helper.reject_on_event(112 self._page, "crash", Error("Navigation failed because page crashed!")113 )114 wait_helper.reject_on_event(115 self._page,116 "framedetached",117 Error("Navigating frame was detached!"),118 lambda frame: frame == self,119 )120 if timeout is None:121 timeout = self._page._timeout_settings.navigation_timeout()122 wait_helper.reject_on_timeout(timeout, f"Timeout {timeout}ms exceeded.")123 return wait_helper124 def expect_navigation(125 self,126 url: URLMatch = None,127 wait_until: DocumentLoadState = None,128 timeout: float = None,129 ) -> EventContextManagerImpl[Response]:130 if not wait_until:131 wait_until = "load"132 if timeout is None:133 timeout = self._page._timeout_settings.navigation_timeout()134 deadline = monotonic_time() + timeout135 wait_helper = self._setup_navigation_wait_helper(timeout)136 matcher = URLMatcher(url) if url else None137 def predicate(event: Any) -> bool:138 # Any failed navigation results in a rejection.139 if event.get("error"):140 return True141 return not matcher or matcher.matches(event["url"])142 wait_helper.wait_for_event(143 self._event_emitter,144 "navigated",145 predicate=predicate,146 )147 async def continuation() -> Optional[Response]:148 event = await wait_helper.result()149 if "error" in event:150 raise Error(event["error"])151 if wait_until not in self._load_states:152 t = deadline - monotonic_time()153 if t > 0:154 await self.wait_for_load_state(state=wait_until, timeout=t)155 if "newDocument" in event and "request" in event["newDocument"]:156 request = from_channel(event["newDocument"]["request"])157 return await request.response()158 return None159 return EventContextManagerImpl(asyncio.create_task(continuation()))160 async def wait_for_load_state(161 self, state: DocumentLoadState = None, timeout: float = None162 ) -> None:163 if not state:164 state = "load"165 if state not in ("load", "domcontentloaded", "networkidle"):166 raise Error("state: expected one of (load|domcontentloaded|networkidle)")167 if state in self._load_states:168 return169 wait_helper = self._setup_navigation_wait_helper(timeout)170 wait_helper.wait_for_event(171 self._event_emitter, "loadstate", lambda s: s == state172 )173 await wait_helper.result()174 async def frame_element(self) -> ElementHandle:175 return from_channel(await self._channel.send("frameElement"))176 async def evaluate(self, expression: str, arg: Serializable = None) -> Any:177 return parse_result(178 await self._channel.send(179 "evaluateExpression",180 dict(181 expression=expression,182 arg=serialize_argument(arg),183 ),184 )185 )186 async def evaluate_handle(187 self, expression: str, arg: Serializable = None188 ) -> JSHandle:189 return from_channel(190 await self._channel.send(191 "evaluateExpressionHandle",192 dict(193 expression=expression,194 arg=serialize_argument(arg),195 ),196 )197 )198 async def query_selector(self, selector: str) -> Optional[ElementHandle]:199 return from_nullable_channel(200 await self._channel.send("querySelector", dict(selector=selector))201 )202 async def query_selector_all(self, selector: str) -> List[ElementHandle]:203 return list(204 map(205 cast(ElementHandle, from_channel),206 await self._channel.send("querySelectorAll", dict(selector=selector)),207 )208 )209 async def wait_for_selector(210 self,211 selector: str,212 timeout: float = None,213 state: Literal["attached", "detached", "hidden", "visible"] = None,214 ) -> Optional[ElementHandle]:215 return from_nullable_channel(216 await self._channel.send("waitForSelector", locals_to_params(locals()))217 )218 async def is_checked(self, selector: str, timeout: float = None) -> bool:219 return await self._channel.send("isChecked", locals_to_params(locals()))220 async def is_disabled(self, selector: str, timeout: float = None) -> bool:221 return await self._channel.send("isDisabled", locals_to_params(locals()))222 async def is_editable(self, selector: str, timeout: float = None) -> bool:223 return await self._channel.send("isEditable", locals_to_params(locals()))224 async def is_enabled(self, selector: str, timeout: float = None) -> bool:225 return await self._channel.send("isEnabled", locals_to_params(locals()))226 async def is_hidden(self, selector: str, timeout: float = None) -> bool:227 return await self._channel.send("isHidden", locals_to_params(locals()))228 async def is_visible(self, selector: str, timeout: float = None) -> bool:229 return await self._channel.send("isVisible", locals_to_params(locals()))...
_browser_context.py
Source:_browser_context.py
...104 self._channel.on(105 "request",106 lambda params: self._on_request(107 from_channel(params["request"]),108 from_nullable_channel(params.get("page")),109 ),110 )111 self._channel.on(112 "response",113 lambda params: self._on_response(114 from_channel(params["response"]),115 from_nullable_channel(params.get("page")),116 ),117 )118 self._channel.on(119 "requestFailed",120 lambda params: self._on_request_failed(121 from_channel(params["request"]),122 params["responseEndTiming"],123 params.get("failureText"),124 from_nullable_channel(params.get("page")),125 ),126 )127 self._channel.on(128 "requestFinished",129 lambda params: self._on_request_finished(130 from_channel(params["request"]),131 from_nullable_channel(params.get("response")),132 params["responseEndTiming"],133 from_nullable_channel(params.get("page")),134 ),135 )136 self._closed_future: asyncio.Future = asyncio.Future()137 self.once(138 self.Events.Close, lambda context: self._closed_future.set_result(True)139 )140 def __repr__(self) -> str:141 return f"<BrowserContext browser={self.browser}>"142 def _on_page(self, page: Page) -> None:143 self._pages.append(page)144 self.emit(BrowserContext.Events.Page, page)145 if page._opener and not page._opener.is_closed():146 page._opener.emit(Page.Events.Popup, page)147 def _on_route(self, route: Route, request: Request) -> None:...
_network.py
Source:_network.py
...34 def __init__(35 self, parent: ChannelOwner, type: str, guid: str, initializer: Dict36 ) -> None:37 super().__init__(parent, type, guid, initializer)38 self._redirected_from: Optional["Request"] = from_nullable_channel(39 initializer.get("redirectedFrom")40 )41 self._redirected_to: Optional["Request"] = None42 if self._redirected_from:43 self._redirected_from._redirected_to = self44 self._failure_text: Optional[str] = None45 self._timing: ResourceTiming = {46 "startTime": 0,47 "domainLookupStart": -1,48 "domainLookupEnd": -1,49 "connectStart": -1,50 "secureConnectionStart": -1,51 "connectEnd": -1,52 "requestStart": -1,53 "responseStart": -1,54 "responseEnd": -1,55 }56 self._headers: Dict[str, str] = parse_headers(self._initializer["headers"])57 @property58 def url(self) -> str:59 return self._initializer["url"]60 @property61 def resource_type(self) -> str:62 return self._initializer["resourceType"]63 @property64 def method(self) -> str:65 return self._initializer["method"]66 @property67 def post_data(self) -> Optional[str]:68 data = self.post_data_buffer69 if not data:70 return None71 return data.decode()72 @property73 def post_data_json(self) -> Optional[Any]:74 post_data = self.post_data75 if not post_data:76 return None77 content_type = self.headers["content-type"]78 if not content_type:79 return None80 if content_type == "application/x-www-form-urlencoded":81 return dict(parse.parse_qsl(post_data))82 return json.loads(post_data)83 @property84 def post_data_buffer(self) -> Optional[bytes]:85 b64_content = self._initializer.get("postData")86 if not b64_content:87 return None88 return base64.b64decode(b64_content)89 @property90 def headers(self) -> Dict[str, str]:91 return self._headers92 async def response(self) -> Optional["Response"]:93 return from_nullable_channel(await self._channel.send("response"))94 @property95 def frame(self) -> "Frame":96 return from_channel(self._initializer["frame"])97 def is_navigation_request(self) -> bool:98 return self._initializer["isNavigationRequest"]99 @property100 def redirected_from(self) -> Optional["Request"]:101 return self._redirected_from102 @property103 def redirected_to(self) -> Optional["Request"]:104 return self._redirected_to105 @property106 def failure(self) -> Optional[str]:107 return self._failure_text...
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