片段当然不起作用，我只是把它放在那里以满足职位要求。请阅读此README.md 并查看Plunker demo。所有详细信息都在README.md 并发布在这里。
README.md
iFrame 动态高度
这个demo是在同源策略下工作的，简单来说就是父子页面必须在同一个位置：
- 相同的协议 (http://)
- 相同的子域 (http://app.)
- 同域 (http://app.domain.com)
-
相同的端口 (http://app.domain.com:80)
CSS：
/* Outer Container */
#iSec {
width: 100vw; /* As wide as your screen */
height: 100vh; /* As tall as your screen */
display: table;/* Will behave like a table */
}
/* iFrame Wrappers */
.jFrame {
position: relative; /* As a non-static element, any descendants can be easily positioned. */
max-height: 100%; /* Being flexible is important when dealing with dynamic content. */
max-width: 100%; /* see above */
overflow-y: auto; /* Scrollbars will appear when height exceeds the viewport (your screen)*/
display: table-cell; /* Will behave like a table-cell
}
/* iFrames */
iframe {
position: absolute; /* Easily positioned within it's parent (`.jFrame`)*/
width: 100%; /* Set the iFrames' attribute as well */
height: 100%; /* Set the iFrames' attribute as well */
top: 0; /* Streches iframes' edges */
left: 0;
bottom: 0;
right: 0;
}
iFrame：
<iframe id="iFrm1" src="iFrm1.html" width="100%" height="100%" scrolling="no" frameborder="0"></iframe>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
我借用和修改的大部分代码来自
这个site
//将所有iframe收集到一个NodeList中，转换成数组，然后调用iFrmHt()，传递每个iFrame的id。
function loadiFrames() {
var iFrmList = document.querySelectorAll('iframe');
var iFrmArray = Array.prototype.map.call(iFrmList, function(obj) {
var ID = obj.id;
iFrmHt(ID);
});
}
//引用目标iFrame的Document
function iFrmHt(ID) {
var iFrm = document.getElementById(ID);
var iDoc = iFrm.contentDocument || iFrm.contentWindow.document;
var iHt = function(iDoc) {
if (!iDoc) {
iDoc = document;
}
var iKid = iDoc.body;
var iRoot = iDoc.documentElement;
// 确定iFrame的子页面--高度用几种不同的方法来测量。
var iHt = Math.max(iKid.scrollHeight, iKid.offsetHeight,
iRoot.clientHeight, iRoot.scrollHeight, iRoot.offsetHeight);
return iHt;
}
// 改变 iFrame 的高度
iFrm.style.height = iHt + 'px';
console.log('iFrame: ' + iFrm.id);
console.log('height: ' + iHt(iDoc));
}
// 如果您在窗口加载时加载，则 iFrame 不应该有任何超时。
window.onload = loadiFrames;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
片段
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>iFrame Dynamic Height</title>
<style>
#iSec {
width: 100vw;
height: 100vh;
display: table;
}
.jFrame {
position: relative;
max-height: 100%;
max-width: 100%;
overflow-y: auto;
display: table-cell;
}
iframe {
position: absolute;
width: 100%;
height: 100%;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
</style>
</head>
<body>
<section id="iSec">
<div id="i1" class="jFrame">
<iframe id="iFrm1" src="iFrm1.html" width="100%" height="100%" scrolling="no" frameborder="0"></iframe>
</div>
<div id="i2" class="jFrame">
<iframe id="iFrm2" src="iFrm2.html" width="100%" height="100%" scrolling="no" frameborder="0"></iframe>
</div>
<div id="i3" class="jFrame">
<iframe id="iFrm3" src="iFrm3.html" width="100%" height="100%" scrolling="no" frameborder="0"></iframe>
</div>
</section>
<script>
function loadiFrames() {
var iFrmList = document.querySelectorAll('iframe');
var iFrmArray = Array.prototype.map.call(iFrmList, function(obj) {
var ID = obj.id;
iFrmHt(ID);
});
}
function iFrmHt(ID) {
var iFrm = document.getElementById(ID);
var iDoc = iFrm.contentDocument || iFrm.contentWindow.document;
var iHt = function(iDoc) {
if (!iDoc) {
iDoc = document;
}
var iKid = iDoc.body;
var iRoot = iDoc.documentElement;
var iHt = Math.max(iKid.scrollHeight, iKid.offsetHeight,
iRoot.clientHeight, iRoot.scrollHeight, iRoot.offsetHeight);
return iHt;
}
iFrm.style.height = iHt + 'px';
console.log('iFrame: ' + iFrm.id);
console.log('height: ' + iHt(iDoc));
}
window.onload = loadiFrames;
</script>
</body>
</html>