对于它的特定知识的人，这一切都涉及到WordPress的“主题定制”，尽管这没有必要回答这个问题。
基本上，我有一个页面（在PHP），其含有的适用的iframe，这是在屏幕的右部中的内容设置的左侧“窗格”。
从概念上讲，我期待用jQuery的可拖动 ，使CSS background-position的主要背景图像通过拖动功能可调的。 我需要申请draggable()在上customize.php页面，排队的脚本在那里，然后操纵IFRAME里的DOM。 它需要在容器/母公司层面做，因为没有那个水平，这将更新X和Y坐标，并将它们保存在存储在那里设置的设置。
我想我需要的可能是不可能的，但我不知道是否有可能用JavaScript做以下两项操作：
- 获取iframe的内容
- 操作DOM 的iframe内 ，通过调整背景图像
draggable()和存储background-position坐标作为数据属性，然后将它们保存到适当的设定输入字段。
根据我的经验，从“父”操纵DOM的iframe中/容器水平是困难的，我想知道如果有件事情我不知道，这是绝对不可能的，或者有一些解决方法吗？ （请注意，原始域是相同的，所以不会有任何跨域iframe的问题）
下面是我的测试执行父iframe的沟通减少的代码。 我加了一些样品如何可以使用。 但我必须指出，这是我的实验室部分，我目前不不得不检查它是否是完全跨浏览器兼容的时间。 但如果它不只会有一些小的变化是有许多工作要做。 （EDIT在当前铬测试，FF和IE 6-9）
我希望这会帮助你与你的问题。 而我又不能保证，现在，它会很好地工作（但我敢肯定）。
父代码
<!doctype html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>index</title>
<script src="jquery.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
(function($, window, undefined) {
var iframe;
// the connector object the will be passed to the iframe and will be used as "API"
var parentConnector = {
_window : window, // a reference to the parents window (not really necessary but nice to have)
$ : $, // a reference to the parents jQuery that can be accessed from the iframe (use with caution)
// here you will define you "API" for the parent (the functions you want to call from the iframe )
setElementValue : function(selector, value ) {
$(selector).val(value);
}
}
// this function is called by the iframe to register the iframe in the parent
window.registerIFrame = function( iframeHelper ) {
//if you have multible iframe in the parent you could change the code here to store them in e.g. an arrray or with a key in an object
iframe = iframeHelper;
// register the parent in the iframe
iframe.registerParent(parentConnector);
}
$(document).on("click",".slideUp",function(event) {
event.preventDefault();
/*
call a function on the helper object, this is the savest way for the commincation because
there is it minimizes the risk to mix the differnt context
*/
iframe.slideUp();
/*
This way would work at least in chrome, with the current version with jquery, but it relays the jQuery implementation
that the correct document is used.
*/
iframe.$(".info-from-parent").val("slideUp");
/*
One thing you should NEVER do is the following:
iframe.$(".info-from-parent").append( $("<div></div>") );
The reason you should not do this is because this mixes DOMElements of different context.
This will result in unexpected crashes/bahaviors in some browsers (but could work in others, or at least it will look like it would work)
*/
});
// same as the slide down, it is just there to have some interaction sample
$(document).on("click",".slideDown",function(event) {
event.preventDefault();
iframe.slideDown();
iframe.$(".info-from-parent").val("slideDown");
});
})(jQuery, window);
</script>
</head>
<body>
<input type="text" class="info-from-iframe"><br>
<a href="#" class="slideUp">slideUp</a> <a href="#" class="slideDown">slideDown</a><br>
<iframe src="iframe.html"></iframe>
</body>
</html>
iframe的代码
<!doctype html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>iframe</title>
<script src="jquery.js" type="text/javascript" charset="utf-8"></script>
<script>
(function($,window,undefined) {
//the connector object the will be passed to the parent and will be used as "API"
var iframeConnector = {
_window : window, // a reference to the iframes window (not really necessary but nice to have)
_parent : undefined,
$ : $, // a reference to the iframes jQuery that can be accessed from the parent (use with caution)
// this function is called by the parent to register the parent in the iframe
registerParent : function( parent ) {
this._parent = parent;
},
/* here you will define you "API" for the iframe (the functions you want to call from the parent )*/
slideUp : function() {
$(".test").slideUp();
},
slideDown : function() {
$(".test").slideDown();
},
setElementValue : function(selector, value ) {
$(selector).val(value);
}
};
// register the iframe in the parent
window.parent.registerIFrame(iframeConnector);
$(document).mousemove(function(event) {
//use the parents "API" to call a function in the parent
iframeConnector._parent.setElementValue(".info-from-iframe", event.clientX+", "+event.clientY);
});
})(jQuery,window);
</script>
</head>
<body>
<input type="text" class="info-from-parent"><br>
<div class="test">
iframe
</div>
</body>
</html>
