Question

我有一个脚本，当用户选择一个类别时，它会在div中加载内容。我还有一个脚本，如果您单击pre标签将选择并复制文本。当内容已经加载时，事情是不起作用，对不起我的英文here a example，这里是我的代码

$(document).ready(function() {
  $("#esto").on("change", function() {
    var vale = this.value
    $("#divcontent").load("http://letraspiolas.com/" + vale + ".html");
  });
});

(function() {
  function selectText(a) {
    var b = document,
      text = a,
      range, selection;
    if (b.body.createTextRange) {
      range = b.body.createTextRange();
      range.moveToElementText(text);
      range.select()
    } else if (window.getSelection) {
      selection = window.getSelection();
      range = b.createRange();
      range.selectNodeContents(text);
      selection.removeAllRanges();
      selection.addRange(range)
    }
  }
  preTags = document.getElementsByTagName("pre");
  for (var i = 0; i < preTags.length; i++) {
    preTags[i].onclick = function() {
      selectText(this);
      document.execCommand("copy")
    }
  }
})();

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<body>
  <select id="esto" data-placeholder="select a category...">
    <option value="">select</option>
    <option value="test"> test </option>
    <option value="test1">test1</option></select>

  <div id="divcontent">
    <pre>this text can be select and copy</pre>
  </div>
</body>

这是 test.html ：

的内容

<h3>title</h3>
<div class="kghjghjg">
  <pre>____i want to select this</pre>
  <pre>_____and this</pre>
  <div class="clear"></div>
</div>

Answer 1

好的，我明白了，试试吧：

<script type="text/javascript"> 

$(document).ready( function(){

    // load event
    $("#esto").on("change", function(){

        var vale = $(this).val();
        $( "#divcontent" ).load("http://letraspiolas.com/"+vale+".html", function() {
            console( "Loaded." );
        });
    });

    // event on pre tag
    $("body").on("click","pre", function(){
        selectText(this);
        document.execCommand("copy")
    });

});

function selectText(a){

    var b=document,text=a,range,selection;
    if(b.body.createTextRange){
        range=b.body.createTextRange();
        range.moveToElementText(text);
        range.select()
    }
    else if(window.getSelection){
        selection=window.getSelection();
        range=b.createRange();
        range.selectNodeContents(text);
        selection.removeAllRanges();
        selection.addRange(range)
    }
}

</script>

Answer 2

如果load()，.html文件位于同一个域中，则无法将.txt方法用于可以使用加载的外部网址。在这种情况下，您必须使用html()方法。

$("#divcontent").html('<object data="http://letraspiolas.com/' + vale + '.html">').promise().done(function() {
  console.log('Loaded');
  initPreTags();
});

<强>更新：如果那不是问题，那么你可以使用load()但是调用这样的回调函数：

$("#divcontent").load("http://letraspiolas.com/" + vale + ".html", initPreTags());

在这种情况下，initPreTags()是在加载内容后将执行的回调方法。

请看一下修改过的代码：

＆＃13;

$(document).ready(function() {
  $("#esto").on("change", function() {
    var vale = this.value
    $("#divcontent").load("http://letraspiolas.com/" + vale + ".html", initPreTags());
  });

  function initPreTags() {
    console.log('Loaded');
    var preTags = document.querySelectorAll('pre');
    preTags.forEach(function(preTag){
      preTag.addEventListener('click', function() {
        selectText(this);
        document.execCommand('copy');
      });
    });
  }


  function selectText(a) {
    var b = document,
      text = a,
      range, selection;
    if (b.body.createTextRange) {
      range = b.body.createTextRange();
      range.moveToElementText(text);
      range.select()
    } else if (window.getSelection) {
      selection = window.getSelection();
      range = b.createRange();
      range.selectNodeContents(text);
      selection.removeAllRanges();
      selection.addRange(range)
    }
  }
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<body>
  <select id="esto" data-placeholder="select a category...">
    <option value="">select</option>
    <option value="test"> test </option>
    <option value="test1">test1</option></select>

  <div id="divcontent">
    <pre>this text can be select and copy</pre>
  </div>
</body>

＆＃13;

.load（）不显示加载的内容

2 个答案: