制作< br>而不是< div>< / div>在contenteditable上按Enter键 [英] Make a <br> instead of <div></div> by pressing Enter on a contenteditable

问题描述

我在我的键盘事件处理程序中写了一些代码来插入< br> 来响应按下Enter键：

I've written a bit of code in my keyboard event handler to insert a <br> in response to the press of the Enter key:

event.preventDefault();
document.execCommand('InsertHTML', true, '<br>');

这只适用于光标在两个字母之间的情况，如果它最后我需要两个<峰; br> -elements。我可以检测到我是否在一条线的尽头？还是输入问题的其他一些工作想法？

This only works if the cursor is between two Letters, if its on the end i need two <br>-Elements. Can i detect if i'm on the end of a Line? Or some other working idea for the Enter problem?

我还尝试捕捉正常的键事件（按下按下的ctrl-Key）并创建一个键盘事件JS，其中Enter键与ctrl一起按下。但这不起作用......

I also tried to catch the normal key-event (wothout the ctrl-Key pressed) and create a keyboard-event with JS where the Enter Key is pressed together with the ctrl. But this dosn't work…

它只需要在Webkit / Safari中工作......

It only has to Work in Webkit/Safari…

推荐答案

为了解决您的问题，请始终将 br 元素作为您的contenteditable div的最后一个元素。这将确保注入br元素时的可预测行为与注入div元素的浏览器默认值。您可以在keyup和mouseup上检查 lastChild 以确保它是br元素。假设你有一个类似的文件：

In order to solve your problem, always keep a br element as the last element of your contenteditable div. This will ensure predictable behavior when injecting a br element vs. the browser default of injecting div elements. You can check the lastChild on keyup and mouseup to make sure it's a br element. Assuming you have a document like:

<div id="editable" contenteditable="true"></div>

您可以使用以下JavaScript（w / jQuery 1.4+）将br元素保留为最后一个元素并注入br元素而不是div div：

You can use the following JavaScript (w/ jQuery 1.4+) to keep a br element as the last element and inject a br element instead of div div:

$(function(){

  $("#editable")

    // make sure br is always the lastChild of contenteditable
    .live("keyup mouseup", function(){
      if (!this.lastChild || this.lastChild.nodeName.toLowerCase() != "br") {
        this.appendChild(document.createChild("br"));
      }
    })

    // use br instead of div div
    .live("keypress", function(e){
      if (e.which == 13) {
        if (window.getSelection) {
          var selection = window.getSelection(),
              range = selection.getRangeAt(0),
              br = document.createElement("br");
          range.deleteContents();
          range.insertNode(br);
          range.setStartAfter(br);
          range.setEndAfter(br);
          range.collapse(false);
          selection.removeAllRanges();
          selection.addRange(range);
          return false;
        }
      }
    });

});

测试Apple OS X w / Google Chrome 7，Mozilla Firefox 3.6，Apple Safari 5）。尝试使用 ierange 以使其在Windows Internet Explorer中正常工作。

Tested on Apple OS X w/ Google Chrome 7, Mozilla Firefox 3.6, Apple Safari 5). Try using ierange to get this to work in Windows Internet Explorer.

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