在Alert和Report中添加以下代码，即可实现完整截取屏幕截图：

from flask_appbuilder import expose
from superset.views.core import BaseSupersetView

class CustomSupersetView(BaseSupersetView):
  @expose('/full_screenshot/')
  def full_screenshot(self):
    ...
    return self.render_template(
      'superset/full_screenshot.html',
      url=data['url'],
      image_url=result['image_url']
    )

此外，还需要创建一个名为'full_screenshot.html”的HTML模板，代码如下：

{% extends "superset/basic.html" %}
{% block content %}

  Warning!
  This is a full page screenshot, please refer to the download link below.
  It may be slow due to the nature of full page screenshot generation.


open in a new window
{% endblock %}

最后，在Alert或Report配置中使用这个新的View即可。