React、js点击按钮，div全屏展示

原创已于 2024-03-28 17:42:23 修改 · 399 阅读

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#javascript #react.js

于 2024-03-28 17:41:17 首次发布

本文介绍了如何在React应用中使用useState和DOMRef实现全屏模式切换，包括进入全屏(onFullScreen)和退出全屏(exitScreen)的JavaScript代码，以及对不同浏览器兼容性的处理。

<div  ref={DOMRef}> 我要全屏  </div>
<Button onClick={onFull} >
  {!isFull ? "全屏模式" : "退出全屏"}
</Button >

  const DOMRef = useRef<any>()
  const [isFull, setIsFull] = useState<boolean>(false);


  // 全屏点击
  const onFull = () => {
    const IsFull = !isFull;
    setIsFull(IsFull)

    const DOM = DOMRef?.current as any
    if (IsFull) {
      onFullScreen(DOM)
    } else {
      exitScreen(DOM)
    }
  }


  const onFullScreen = (DOM: any) => {
    let el = DOM as any
    let rfs = el.requestFullScreen || el.webkitRequestFullScreen || el.mozRequestFullScreen || el.msRequestFullScreen
    // 获取实现全屏的方法，此处兼容了火狐、谷歌、IE、safari浏览器
    if (typeof rfs != "undefined" && rfs) {
      rfs.call(el)
      return
    }
    if (typeof window.ActiveXObject != "undefined") {
      let wscript = new window.ActiveXObject("WScript.Shell") // 取得系统目录
      if (wscript) {
        wscript.SendKeys("{F11}")
      }
    }
  }

  const exitScreen = (DOM: any) => {
    let el = DOM as any
    let rfs = el.requestFullScreen || el.webkitRequestFullScreen || el.mozRequestFullScreen || el.msRequestFullScreen
    let doc = document as any
    if (doc.exitFullscreen) {
      doc.exitFullscreen();
    } else if (doc.mozCancelFullScreen) {
      doc.mozCancelFullScreen();
    } else if (doc.webkitCancelFullScreen) {
      doc.webkitCancelFullScreen();
    } else if (doc.msExitFullscreen) {
      doc.msExitFullscreen();
    }

    if (typeof rfs != "undefined" && rfs) {
      rfs.call(el);
    }
  }