Find a single element based on a CSS Selector string. :param selector: CSS Selector(s) :type selector: str
(
self,
selector: str,
_node: Optional[Union[cdp.dom.Node, element.Element]] = None,
)
| 433 | return items |
| 434 | |
| 435 | async def query_selector( |
| 436 | self, |
| 437 | selector: str, |
| 438 | _node: Optional[Union[cdp.dom.Node, element.Element]] = None, |
| 439 | ): |
| 440 | """ |
| 441 | Find a single element based on a CSS Selector string. |
| 442 | :param selector: CSS Selector(s) |
| 443 | :type selector: str |
| 444 | """ |
| 445 | selector = selector.strip() |
| 446 | if not _node: |
| 447 | doc: cdp.dom.Node = await self.send(cdp.dom.get_document(-1, True)) |
| 448 | else: |
| 449 | doc = _node |
| 450 | if _node.node_name == "IFRAME": |
| 451 | doc = _node.content_document |
| 452 | node_id = None |
| 453 | try: |
| 454 | node_id = await self.send( |
| 455 | cdp.dom.query_selector(doc.node_id, selector) |
| 456 | ) |
| 457 | except ProtocolException as e: |
| 458 | if _node is not None: |
| 459 | if "could not find node" in e.message.lower(): |
| 460 | if getattr(_node, "__last", None): |
| 461 | del _node.__last |
| 462 | return [] |
| 463 | # If supplied node is not found, |
| 464 | # the dom has changed since acquiring the element, |
| 465 | # therefore, update our passed node and try again. |
| 466 | await _node.update() |
| 467 | _node.__last = ( |
| 468 | True # Make sure this isn't turned into infinite loop. |
| 469 | ) |
| 470 | return await self.query_selector(selector, _node) |
| 471 | else: |
| 472 | await self.send(cdp.dom.disable()) |
| 473 | raise |
| 474 | if not node_id: |
| 475 | return |
| 476 | node = util.filter_recurse(doc, lambda n: n.node_id == node_id) |
| 477 | if not node: |
| 478 | return |
| 479 | return element.create(node, self, doc) |
| 480 | |
| 481 | async def find_elements_by_text( |
| 482 | self, |