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@one-for-all/artery-simulator

v1.5.0

Published

技术要点

Downloads

11

Readme

Artery Simulator

技术要点

  • 渲染组件时,将其放入一个不影响布局的的 container 中,display: contents
    • 借助此 container 可以找到组件渲染的实际 DOM
    • 组件加载后,将其实际 DOM 缓存起来,卸载前将其删除
  • 创建 IntersectionObserver 并对上述的 DOM 集合进行监听 (A)
    • 在 callback 中就可以获得 DOM 的 boundingClientRect
    • 可以使用 boundingClientRect 在组件上层渲染一个表示其位置和大小的 contour 元素
    • 在 contour 元素上实现点击选中、拖拽等功能
  • 监听 mutation 和 resize 事件
    • 当上述事件发生后,需要重新执行步骤 A