在 Chrome 中拖放图像
我正在尝试编写一个脚本，用于在 Chrome 的 iframe 中拖放图像。
<html>
<head>
<script language="JavaScript">
function InsertImage(ev)
{
alert("drag function called");
var _image = document.createElement("image");
var _sel = _win.getSelection();
if(!_sel.isCollapsed)
{
_sel.deleteFromDocument();
}
try{
var _range = _sel.getRangeAt(0);
}
catch(e)
{
_range = _doc.createRange();
alert("000000:::: "+e);
alert("_range is ::"+_range);
}
if(!_range)
{
_range = _doc.createRange();
}
alert("range is ::::"+_range);
try
{
_range.insertNode(_image);
}
catch(e)
{
alert("1111:: "+e);
}
_range.insertNode(_image);
}
function init()
{
_iframe = document.createElement("iframe");
_iframe.id = "view";
_iframe.style.height = "250px";
_iframe.style.width = "600px";
_iframe.style.top = "20px";
_iframe.style.left = "200px";
_iframe.style.position = "absolute";
_iframe.style.border = "2px solid lightBlue";
document.body.appendChild(_iframe);
_iframe.contentDocument.designMode="on";//No I18N
_win = _iframe.contentWindow;
_win.focus();
_doc = _win.document; //making it global variable
_doc.body.innerHTML = "<p>aaaa bbbb cccc dddd eeee ffff gggg hhhh iiii jjjj kkkk llll mmmm nnnn oooo pppp qqqq rrrr ssss tttt uuuu vvvv wwww xxxx yyyy zzzz</p>";
_doc.addEventListener("dragover",InsertImage,false);
}
</script>
</head>
<body onLoad="init()">
<div style="position:absolute;top:300px;left:100px ">
<p> this si a testing doc.here, we test the things</p>
</div>
</body>
是不工作.. 在 chrome 控制台中，我收到此错误消息：
未捕获的错误：WRONG_DOCUMENT_ERR：DOM 异常 4
我猜选择和范围有问题。
I'm trying to write a script for drag and drop of image in a iframe in Chrome.
<html>
<head>
<script language="JavaScript">
function InsertImage(ev)
{
alert("drag function called");
var _image = document.createElement("image");
var _sel = _win.getSelection();
if(!_sel.isCollapsed)
{
_sel.deleteFromDocument();
}
try{
var _range = _sel.getRangeAt(0);
}
catch(e)
{
_range = _doc.createRange();
alert("000000:::: "+e);
alert("_range is ::"+_range);
}
if(!_range)
{
_range = _doc.createRange();
}
alert("range is ::::"+_range);
try
{
_range.insertNode(_image);
}
catch(e)
{
alert("1111:: "+e);
}
_range.insertNode(_image);
}
function init()
{
_iframe = document.createElement("iframe");
_iframe.id = "view";
_iframe.style.height = "250px";
_iframe.style.width = "600px";
_iframe.style.top = "20px";
_iframe.style.left = "200px";
_iframe.style.position = "absolute";
_iframe.style.border = "2px solid lightBlue";
document.body.appendChild(_iframe);
_iframe.contentDocument.designMode="on";//No I18N
_win = _iframe.contentWindow;
_win.focus();
_doc = _win.document; //making it global variable
_doc.body.innerHTML = "<p>aaaa bbbb cccc dddd eeee ffff gggg hhhh iiii jjjj kkkk llll mmmm nnnn oooo pppp qqqq rrrr ssss tttt uuuu vvvv wwww xxxx yyyy zzzz</p>";
_doc.addEventListener("dragover",InsertImage,false);
}
</script>
</head>
<body onLoad="init()">
<div style="position:absolute;top:300px;left:100px ">
<p> this si a testing doc.here, we test the things</p>
</div>
</body>
Is is not working..
In chrome console , I get this error message:
Uncaught Error: WRONG_DOCUMENT_ERR: DOM Exception 4
Something wrong with selection and range, i guess.
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每当 DOM 操作方法尝试使用属于两个不同 DOMDocument 的节点时，就会引发
DOMException.WRONG_DOCUMENT_ERR异常。您必须使用 DOMDocument.importNode 方法才能将 DOMNode 从一个文档导入到另一个文档。我想你必须将图像节点导入到 iFrame 文档中，
例如（未经测试）：
更多信息
A
DOMException.WRONG_DOCUMENT_ERRexception is thrown whenever a DOM manipulation method tries to work with nodes that are part of two different DOMDocuments. You must use theDOMDocument.importNodemethod in order to import a DOMNode from one document to another.I suppose you have to import the image-node to the iFrame-document
something like (untested):
more here