element_handle.py 文件源码

def _visibleCenter(self) -> Dict[str, int]:
        center = await self.evaluate('''
element => {
    if (!element.ownerDocument.contains(element))
        return null;
    element.scrollIntoViewIfNeeded();
    let rect = element.getBoundingClientRect();
    return {
        x: (Math.max(rect.left, 0) + Math.min(rect.right, window.innerWidth)) / 2,
        y: (Math.max(rect.top, 0) + Math.min(rect.bottom, window.innerHeight)) / 2
    };
}
        ''')  # noqa: E501
        if not center:
            # raise Exception('No node found for selector: ' + selector)
            raise BrowserError('No node found for selector: ')
        return center