它有任何方法绑定execcommand与div元素不是为整个文档,我试试这个:
document.getElementById('div').execcommand(...)
但它有一个错误:
execcommand is not a function
它有任何方法将execcommand与div元素绑定而不是整个文件!! 我不喜欢使用iframe方法。
答案 0 :(得分:17)
这在IE中比其他浏览器更容易,因为IE的TextRange
对象具有execCommand()
方法,这意味着可以在文档的某个部分上执行命令,而无需更改选择和暂时启用designMode
(这是您在其他浏览器中必须执行的操作)。这是一个干净利落的功能:
function execCommandOnElement(el, commandName, value) {
if (typeof value == "undefined") {
value = null;
}
if (typeof window.getSelection != "undefined") {
// Non-IE case
var sel = window.getSelection();
// Save the current selection
var savedRanges = [];
for (var i = 0, len = sel.rangeCount; i < len; ++i) {
savedRanges[i] = sel.getRangeAt(i).cloneRange();
}
// Temporarily enable designMode so that
// document.execCommand() will work
document.designMode = "on";
// Select the element's content
sel = window.getSelection();
var range = document.createRange();
range.selectNodeContents(el);
sel.removeAllRanges();
sel.addRange(range);
// Execute the command
document.execCommand(commandName, false, value);
// Disable designMode
document.designMode = "off";
// Restore the previous selection
sel = window.getSelection();
sel.removeAllRanges();
for (var i = 0, len = savedRanges.length; i < len; ++i) {
sel.addRange(savedRanges[i]);
}
} else if (typeof document.body.createTextRange != "undefined") {
// IE case
var textRange = document.body.createTextRange();
textRange.moveToElementText(el);
textRange.execCommand(commandName, false, value);
}
}
示例:
var testDiv = document.getElementById("test");
execCommandOnElement(testDiv, "Bold");
execCommandOnElement(testDiv, "ForeColor", "red");
答案 1 :(得分:4)
也许这可以帮助你:
此页面上的Example code 1通过使用函数在div上具有execcommand。不确定这是不是你要追求的?祝你好运!
编辑:我想出了如何把代码放在这里:o
<head>
<script type="text/javascript">
function SetToBold () {
document.execCommand ('bold', false, null);
}
</script>
</head>
<body>
<div contenteditable="true" onmouseup="SetToBold ();">
Select a part of this text!
</div>
</body>
答案 2 :(得分:3)
使用Javascript:
var editableFocus = null;
window.onload = function() {
var editableElements = document.querySelectorAll("[contenteditable=true]");
for (var i = 0; i<editableElements.length; i++) {
editableElements[i].onfocus = function() {
editableFocus = this.id;
}
};
}
function setPreviewFocus(obj){
editableFocus = obj.id
}
function formatDoc(sCmd, sValue) {
if(editableFocus == "textBox"){
document.execCommand(sCmd, false, sValue);
}
}
HTML:
<div id="textBox" contenteditable="true">
Texto fora do box
</div>
<div contenteditable="true">
Texto fora do box
</div>
<button title="Bold" onclick="formatDoc('bold');">Bold</button>
答案 3 :(得分:1)
您可以保持简单,并将其添加到您的div。
<div contenteditable="true" onmouseup="document.execCommand('bold',false,null);">