如何使单击事件仅触发文本(而不是同一元素中的其他空白)[重复]

因为我们不能直接在textNodes上监听事件,所以我们必须采取更具创造性的方法来解决这个问题。我们可以做的一件事是查看click事件的坐标,看看它是否与textNode重叠。

在内部 该模型包含一组尺寸:

function isInside ( x, y, rect ) {
    return x >= rect.left  && y >= rect.top
        && x <= rect.right && y <= rect.bottom;
}

这是相当基本的。这个 x 和 y rect 引用将是至少具有四个属性的对象,其中包含表示矩形四个角的绝对像素值。

接下来,我们需要一个函数来循环遍历所有作为TextNode的ChildNode,并确定单击事件是否发生在其中一个上面:

function textNodeFromPoint( element, x, y ) {
    var node, nodes = element.childNodes, range = document.createRange();
    for ( var i = 0; node = nodes[i], i < nodes.length; i++ ) {
        if ( node.nodeType !== 3 ) continue;
        range.selectNodeContents(node);
        if ( isInside( x, y, range.getBoundingClientRect() ) ) {
            return node;
        }
    }
    return false;
}

element.addEventListener( "click", function ( event ) {
    if ( event.srcElement === this ) {
        var clickedNode = textNodeFromPoint( this, event.clientX, event.clientY );
        if ( clickedNode ) {
            alert( "You clicked: " + clickedNode.nodeValue );
        }
    }
});

注意,初始条件 if ( event.srcElement ) === this srcElement 因此,这些是我们唯一关心的问题。

您可以在此处看到结果: http://jsfiddle.net/jonathansampson/ug3w2xLc/

<div id="bigdiv">
    <span id="text">TEXT HERE</span>
</div>

Script:
$('#text').on('click', function() {
   .....
});

<div id="gig">
<div id="smthing">one</div>lala
<div id="else"></div>
</div>

Script:

var htmlText = $('#gig').text(); //the big divs text


    var children = $('#gig').children(); //get dom elements so they can be ignored later

    $.each(children, function (index, child) {
        var txt = $(child).text().trim(); 
        if (txt != '') { //if a child has text in him
            htmlText = htmlText.replace(txt, 'xxx'); //replace it in the big text with xxx
        }
    });

    htmlText = htmlText.split("xxx"); //split for xxx make it arrat
    var counter = 0; //the part when the text is added
    $.each(htmlText, function (i, el) {
        htmlText[i] = el.trim();

        if (htmlText[i] != "") { //if there is something here than it's my text
            htmlText[i] = '<span id="text">' + htmlText[i] + '</span>'; //replace it with a HTML element personalized
            counter++; //mark that you have replaced the text
        } else { // if there is nothing at this point it means that I have a DOM element here
            htmlText[i] = $(children[i - counter])[0].outerHTML; //add the DOM element
        }
    });

    if (children.length >= htmlText.length) { //you might have the case when not all the HTML children were added back 
        for (var i = htmlText.length - 1; i < children.length; i++) {
            htmlText[i + 1] = $(children[i])[0].outerHTML; //add them
        }
    }

    htmlText = htmlText.join(""); //form a HTML markup from the altered stuff

    $('#gig').html(htmlText); // replace the content of the big div

    $('#text').on('click', function (data) { //add click support
        alert('ok');
    });

http://jsfiddle.net/atrifan/5qc27f9c/

对不起,我有点累了。

你能做到这一点吗?这就是你想要的吗?

它只生成div中的文本,尽管div也可以有其他div,只生成没有HTML容器的文本,比如div a span a p an a或类似的内容,并对其进行修改,将其添加到一个span中,使其可供单击。

在没有包装元素的情况下执行此操作相当麻烦。我设法让它工作,但这将 仅适用于垂直和水平居中的一个衬里

要查看与此相关的HTML和CSS,请参阅 http://jsfiddle.net/v8jbsu3m/3/

jQuery('#bigDiv').click(function(e) {
    // Get the x and y offest from the window
    margin_top = jQuery(this).offset().top;
    margin_left = jQuery(this).offset().left;

    // Get the dimensions of the element.
    height = jQuery(this).height();
    width = jQuery(this).width();

    // Retrieve the font_size and remove the px addition
    font_size = parseInt(jQuery(this).css('font-size').replace('px', ''));

    // Retrieve the position of the click
    click_x = e.pageX;
    click_y = e.pageY;

    // These variables will be used to validate the end result
    var in_text_y = false;
    var in_text_x = false;

    // Determine the click relative to the clicked element
    relative_x = click_x - margin_left;
    relative_y = click_y - margin_top;

    // Determine whether the y-coordinate of the click was in the text
    if (relative_y >= (parseFloat(height) / 2) - (parseFloat(font_size) / 2) &&
        relative_y <= (parseFloat(height) / 2) + (parseFloat(font_size) / 2))
        in_text_y = true;

    // This piece of code copies the string and places it in a invisible div
    // If this div has the same font styling and no paddings etc... it can
    // be used to get the width of the text
    text = jQuery(this).text();
    text_width = jQuery('#widthTester').html(text).width();

     // Determine whether the x-coordinate of the click was in the text
    if (relative_x >= (parseFloat(width) / 2) - (parseFloat(text_width) / 2) &&
        relative_x < (parseFloat(width) / 2) + (parseFloat(text_width) / 2))
        in_text_x = true;

    // If the x and y coordinates were both in the text then take action
    if (in_text_x && in_text_y)
        alert('You clicked the text!');
});

通过添加包装元素来解决此问题

如果在文本周围放置一个span,则可以向span中添加onClick事件处理程序。

<div id="bigdiv">
     <span>CLICK ON THIS TEXT</span>
</div>

jQuery代码

jQuery('#bigdiv span').click(function() {
    jquery(this).remove();
});

如果您想直接浏览HTML,可以使用

<div id="bigdiv" onclick="myFunction();">

然后在JS中简单地应用函数:

function myFunction(){
    //...
}

<p> 围绕文本或 <span>

<div id="bigdiv">
    <p onclick="myFuncion();"> TEXT </p>
</div>