我正在升级一些适用于IE的Javascript。但是,我遇到了一些问题。
继承IE代码:
var range = document.getElementById('text').contentWindow.window
.document.getElementById('Content').createTextRange();
var textObj = document.getElementById('text').contentWindow.window
.document.getElementById('Content');
var textFieldValue = theSmile;
if (range && textObj.CursorPos) {
var CursorPos = textObj.CursorPos;
CursorPos.text = CursorPos.text.charAt(CursorPos.text.length - 1)
== ' ' ?' ' + textFieldValue : textFieldValue;
} else {
textObj.value = textFieldValue;
}
对于非IE浏览器,我尝试用CreateTextRange
替换CreateRange
,但这没有帮助。使用这样的代码:
var range;
var textObj;
var iframeEl = document.getElementById('text');
if (iframeEl.contentDocument) { // DOM
range = iframeEl.contentDocument.getElementById('Content').createRange;
textObj= iframeEl.contentDocument.getElementById('Content');
} else if (iframeEl.contentWindow) { // IE win
range = iframeEl.contentWindow.document.getElementById('Content')
.createTextRange;
textObj= iframeEl.contentWindow.document.getElementById('Content');
}
答案 0 :(得分:9)
这是一个在文本区域或文本输入中在光标处插入文本的功能,这就是你所拥有的。它适用于所有主流浏览器:
function insertTextAtCursor(el, text) {
var val = el.value, endIndex, range, doc = el.ownerDocument;
if (typeof el.selectionStart == "number"
&& typeof el.selectionEnd == "number") {
endIndex = el.selectionEnd;
el.value = val.slice(0, endIndex) + text + val.slice(endIndex);
el.selectionStart = el.selectionEnd = endIndex + text.length;
} else if (doc.selection != "undefined" && doc.selection.createRange) {
el.focus();
range = doc.selection.createRange();
range.collapse(false);
range.text = text;
range.select();
}
}
您可以按如下方式使用它:
var iframeWin = document.getElementById('text').contentWindow;
var textObj = iframeWin.document.getElementById('Content');
insertTextAtCursor(textObj, "foo");