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Javascript 动态更改iframe高度_Javascript_Jquery_Html_Css_Iframe - Fatal编程技术网

Javascript 动态更改iframe高度

Javascript 动态更改iframe高度,javascript,jquery,html,css,iframe,Javascript,Jquery,Html,Css,Iframe,我正在尝试用iframe的内容来缩放iframe,使其随浏览器窗口大小的变化而动态变化。我有以下缩放高度的代码,但我的问题是我在窗口外部定义的变量。resize()函数在函数内部没有值。我错过什么了吗?它们不应该是全球性的吗 var windowHeight = $(window).height(); var iframeHeight = $('iframe').height(); var heightScale = windowHeight/iframeHeight; //d

我正在尝试用iframe的内容来缩放iframe,使其随浏览器窗口大小的变化而动态变化。我有以下缩放高度的代码,但我的问题是我在
窗口外部定义的变量。resize()
函数在函数内部没有值。我错过什么了吗?它们不应该是全球性的吗

  var windowHeight = $(window).height();
  var iframeHeight = $('iframe').height();
  var heightScale = windowHeight/iframeHeight;

  //define resize function
$(window).resize( function() {
/*test*/ console.log("I have triggered");

//define dimensions for window and iframe
  var newWindowHeight = $(window).height();
  var newIframeSize = null;
  var hScale = 1.01;
  var sScale = .09;


  //window size getting bigger
  /*test*/ console.log("windowHeight is " + windowHeight);
  /*test*/ console.log("newWindowHeight is " + newWindowHeight);

  if ( windowHeight < newWindowHeight )
    {
      console.log("i'm in the first if")
      windowHeight = newWindowHeight;
      newIframeSize = iframeHeight*heightScale;
      /*test*/ console.log("iframe"+iframeHeight);
      /*test*/ console.log("heightScale"+heightScale);
      /*test*/ console.log("newiframe"+newIframeSize);

      while ( newIframeSize < iframeHeight  )
      {
        console.log("While loop in progress");
        $('iframe').css('transform' , 'scale(' + hScale + ')');
        newIframeSize = $('iframe').height();
      }
    }
    //window size getting smaller
    else if ( windowHeight > newWindowHeight )
      {
        console.log("i'm in the first if")
        windowHeight = newWindowHeight;
        newIframeSize = iframeHeight/heightScale;    
        /*test*/ console.log("hey"+iframeHeight);console.log("hi"+heightScale);console.log("ho"+newIframeSize);

        while ( newIframeSize > iframeHeight ) //can use newIframe < iframeHeight
        {
          console.log("While loop in progress");
          $('iframe').css('transform' , 'scale(' + sScale + ')');
          newIframeSize = $('iframe').height();

        }
      }
var windowHeight=$(window.height();
变量iframehight=$('iframe').height();
var heightScale=窗高/iframeHeight;
//定义调整大小功能
$(窗口)。调整大小(函数(){
/*test*/console.log(“我已触发”);
//定义窗口和iframe的尺寸
var newWindowHeight=$(window.height();
var newIframeSize=null;
var hScale=1.01;
var-sScale=.09;
//窗口越来越大
/*test*/console.log(“windowHeight为”+windowHeight);
/*test*/console.log(“newWindowHeight为”+newWindowHeight);
if(窗高<新窗高)
{
log(“我在第一个if中”)
windowHeight=新的windowHeight;
newIframeSize=iframeHeight*高度刻度;
/*test*/console.log(“iframe”+iframehight);
/*测试*/控制台日志(“高度刻度”+高度刻度);
/*test*/console.log(“newiframe”+newIframeSize);
while(newIframeSize新建窗口高度)
{
log(“我在第一个if中”)
windowHeight=新的windowHeight;
newIframeSize=iframeHeight/heightScale;
/*test*/console.log(“hey”+iframehight);console.log(“hi”+heightScale);console.log(“ho”+newIframeSize);
while(newIframeSize>iframehight)//可以使用newIframe

感谢您的帮助。谢谢。

没有理由您的变量不可用。您可能需要创建一个演示,以便我们可以看到发生了什么。您是否尝试过查看?您需要调整事件,调整大小功能将对其作出反应。@Patryk这对我不起作用。我需要iframe根据眉毛进行更改ser,然后缩放iframe中的内容。通常,您可以设置iframe的大小、宽度和高度。如果其中的内容较大,则滚动条必须足够。@nulldev是的,不幸的是,我需要iframe中的内容在不滚动的情况下可见