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总结iframe高度自适应,自适应子页面高度

2016-05-19 18:35 661 查看
在网上找了很多iframe的高度自适应,发现很多兼容性都不是很好,于是自己总结了一下。

页面html节点上要有

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<iframe id="mainFrame" name="mainFrame" scrolling="no" src="Index.aspx"
frameborder="0" style="padding: 0px; width: 100%; height: 1000px;"></iframe>


调用
<script type="text/javascript">
startInit('mainFrame', 560);
</script>


var browserVersion = window.navigator.userAgent.toUpperCase();
var isOpera = false, isFireFox = false, isChrome = false, isSafari = false, isIE = false;
function reinitIframe(iframeId, minHeight) {
try {
var iframe = document.getElementById(iframeId);
var bHeight = 0;
if (isChrome == false && isSafari == false)
bHeight = iframe.contentWindow.document.body.scrollHeight;

var dHeight = 0;
if (isFireFox == true)
dHeight = iframe.contentWindow.document.documentElement.offsetHeight + 2;
else if (isIE == false && isOpera == false)
dHeight = iframe.contentWindow.document.documentElement.scrollHeight;
else if (isIE == true && ! -[1, ] == false) { } //ie9+
else
bHeight += 3;

var height = Math.max(bHeight, dHeight);
if (height < minHeight) height = minHeight;
iframe.style.height = height + "px";
} catch (ex) { }
}
function startInit(iframeId, minHeight) {
isOpera = browserVersion.indexOf("OPERA") > -1 ? true : false;
isFireFox = browserVersion.indexOf("FIREFOX") > -1 ? true : false;
isChrome = browserVersion.indexOf("CHROME") > -1 ? true : false;
isSafari = browserVersion.indexOf("SAFARI") > -1 ? true : false;
if (!!window.ActiveXObject || "ActiveXObject" in window)
isIE = true;
window.setInterval("reinitIframe('" + iframeId + "'," + minHeight + ")", 100);
}


源引:http://www.cnblogs.com/slyzly/articles/2422737.html
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