37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
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"""PDD 商品页一次性下拉刷新手势；不负责页面分类或重试决策。"""
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import re
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import xml.etree.ElementTree as ET
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from typing import Any
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_BOUNDS_PATTERN = re.compile(r"^\[(\d+),(\d+)\]\[(\d+),(\d+)\]$")
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def pull_down_to_refresh(device: Any, root: ET.Element) -> None:
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"""在最新控件树的内容区执行一次向下拉手势。
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调用方必须已经把页面分类为明确的整页售罄。手势从屏幕中上部开始，
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避开系统状态栏，并且不点击任何页面节点。
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"""
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right = 0
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bottom = 0
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for node in root.iter("node"):
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match = _BOUNDS_PATTERN.fullmatch(node.get("bounds", ""))
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if match is None:
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continue
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_left, _top, node_right, node_bottom = map(int, match.groups())
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right = max(right, node_right)
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bottom = max(bottom, node_bottom)
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if right < 300 or bottom < 600:
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raise ValueError("售罄页面没有可靠的屏幕边界，不能安全下拉刷新")
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x = right // 2
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start_y = int(bottom * 0.28)
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end_y = int(bottom * 0.72)
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if end_y - start_y < 240:
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raise ValueError("售罄页面可用刷新区域过小")
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device.swipe(x, start_y, x, end_y, duration=0.5)
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