恢复插入位置不适用于IE

Question

为了恢复可编辑DIV的插入位置，我使用以下Javascript代码：

var savedRange,isInFocus;
function saveSelection() {
  if(window.getSelection) { //non IE Browsers
    savedRange = window.getSelection().getRangeAt(0);
  } else if(document.selection) { //IE
    savedRange = document.selection.createRange();  
  } 
}

function restoreSelection() {
  isInFocus = true;
  document.getElementById('myInstance1').focus();
  if(savedRange != null) {
    if (window.getSelection) { //non IE and there is already a selection
      var s = window.getSelection();
      if (s.rangeCount > 0) 
        s.removeAllRanges();
      s.addRange(savedRange);
    } else if (document.createRange) { //non IE and no selection
      window.getSelection().addRange(savedRange);
    } else if (document.selection) { //IE
      savedRange.select();
    }
  }
}

此代码用于将一些文本从textarea添加到myInstance1 contenteditable DIV。使用IE，它会在页面顶部添加文本。

适用于Firefox和Chrome。

有谁知道为什么IE部分不起作用？

找到解决方案：在document.getElementById('myInstance1').focus(); savedRange = document.selection.createRange();之前添加function saveSelection() { if(window.getSelection) { //non IE Browsers savedRange = window.getSelection().getRangeAt(0); } else if(document.selection) { //IE document.getElementById('myInstance1').focus(); savedRange = document.selection.createRange(); } } ： - D

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