在contentEditable div中使用jQuery替换htmlHtml [英] replaceHtmlAt using jQuery inside contentEditable div
问题描述
< div id =editorcontenteditable =true >
我是一些文字。
< / div>
$('#editor')。replaceHtmlAt(start,end,string);
使用案例:
-
用户在
#editor
$ b中输入 -
keyup
事件捡起@
位置 -
$('#editor')。replaceHtmlAt(@的位置,@ + 1的位置,< div> Hello< / div> ;);
@
$ b 这可能吗?
编辑
我这样做是为了工作
$(this).slice(pos-1).html('< span id =提及'+ pos +'> @< ; /跨度>');
但是我遇到了另一个问题。在Chrome中,#editor中的插入符号位置一直移动到后面......如何在span标记中的'@'之后恢复插入符的位置?
Dylan,虽然你想用'@'替代'@'是非常正常的,但我们(编码人员)知道我们可以拦截并且处理关键事件。
因此,建立在Derek在这里用过的东西之后,我会这样做:
// @see http://stackoverflow.com/a/4836809/314056
函数insertNodeBeforeCaret(node){
if(typeof window.getSelection!= undefined){
var sel = window.getSelection();
if(sel.rangeCount){
var range = sel.getRangeAt(0);
range.collapse(false);
range.insertNode(node);
range = range.cloneRange();
range.selectNodeContents(node);
range.collapse(false);
sel.removeAllRanges();
sel.addRange(range);
} else if(typeof document.selection!=undefined&& document.selection.type!=Control){
var html =(node.nodeType = = 1)? node.outerHTML:node.data;
var id =marker_+(+ Math.random())。slice(2);
html + ='< span id ='+ id +'>< / span>';
var textRange = document.selection.createRange();
textRange.collapse(false);
textRange.pasteHTML(html);
var markerSpan = document.getElementById(id);
textRange.moveToElementText(markerSpan);
textRange.select();
markerSpan.parentNode.removeChild(markerSpan);
$ b $(#editor)。keydown(function(event){
if(event.which == 50&&& amp; event .shiftKey){// 50 =>'2'和shift +'2'=> @
event.preventDefault(); //中止插入'@'
var html = $(' < span> hi< / span>'); //创建html节点
insertNodeBeforeCaret(html [0]); //在插入符号前插入节点
}
});
I'm trying to achieve the following functionality:
<div id="editor" contenteditable="true">
I am some text.
</div>
$('#editor').replaceHtmlAt(start, end, string);
Use case:
User types an
@
inside#editor
keyup
event picksup the@
position
$('#editor').replaceHtmlAt(position of @, position of @ + 1, "<div>Hello</div>");
Is this possible?
EDIT
I got it to work by doing this
$(this).slice(pos-1).html('<span id="mention'+pos+'">@</span>');
However I've encountered another problem. In Chrome, the caret position inside #editor moves all the way to the back... how do I restore the caret's position after '@' inside the span tags?
Dylan, although your thinking about replacing '@' is right in layman terms, we (coders) know that we can intercept and mess around with key events.
So, building on what Derek used up here, I'd do:
// @see http://stackoverflow.com/a/4836809/314056
function insertNodeBeforeCaret(node) {
if (typeof window.getSelection != "undefined") {
var sel = window.getSelection();
if (sel.rangeCount) {
var range = sel.getRangeAt(0);
range.collapse(false);
range.insertNode(node);
range = range.cloneRange();
range.selectNodeContents(node);
range.collapse(false);
sel.removeAllRanges();
sel.addRange(range);
}
} else if (typeof document.selection != "undefined" && document.selection.type != "Control") {
var html = (node.nodeType == 1) ? node.outerHTML : node.data;
var id = "marker_" + ("" + Math.random()).slice(2);
html += '<span id="' + id + '"></span>';
var textRange = document.selection.createRange();
textRange.collapse(false);
textRange.pasteHTML(html);
var markerSpan = document.getElementById(id);
textRange.moveToElementText(markerSpan);
textRange.select();
markerSpan.parentNode.removeChild(markerSpan);
}
}
$("#editor").keydown(function(event){
if(event.which == 50 && event.shiftKey){ // 50 => '2' and shift+'2' => @
event.preventDefault(); // abort inserting the '@'
var html = $('<span>hi</span>'); // create html node
insertNodeBeforeCaret(html[0]); // insert node before caret
}
});
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