Add click event to iframe

I want to add a click event to an iframe. I used this example and got this:

$(document).ready(function () {
   $('#left').bind('click', function(event) { alert('test'); });
});

<iframe src="left.html" id="left">
</iframe>

But unfortunately nothing happens.
When I test it with another element (e.g. a button), it works:

<input type="button" id="left" value="test">

标签： javascript jquery iframe

5条回答

Lonely孤独者°

2楼-- · 2019-01-03 11:05

Two solutions:

Using :after on a .iframeWrapper element
Using pointer-events:none; one the iframe

1. Using `:after`

Quite straightforward. The iframe wrapper has a :after (transparent) pseudo element with higher z-index - that will help the wrapper to register the click:

jQuery(function ($) { // DOM ready
  
   $('.iframeWrapper').on('click', function(e) {
     e.preventDefault();
     alert('test');
   });
  
});

.iframeWrapper{
  display:inline-block;
  position:relative;
}
.iframeWrapper:after{ /* I have higher Z-index so I can catch the click! Yey */
  content:"";
  position:absolute;
  z-index:1;
  width:100%;
  height:100%;
  left:0;
  top:0;
}

.iframeWrapper iframe{
  vertical-align:top;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="iframeWrapper">
  <iframe src="http://www.reuters.tv/" frameBorder="0"></iframe>
</div>

2. Using `pointer-events:none;`

Clicks are not handleable from outside the iframe from an external resource (if the iframe is not in your domain).
You can only create that function inside your 'called into iframe' page, not from within the iframe-hosting page.

How to do it:

You can wrap your iframe into a div
make the click "go through" your iframe using CSS pointer-events:none;
target clicks with jQuery on your wrapping DIV (the iframe parent element)

jQuery(function ($) { // DOM ready
  
   $('.iframeWrapper').on('click', function(e) {
     e.preventDefault();
     alert('test');
   });
  
});

.iframeWrapper{
  display:inline-block;
  position:relative;
}

.iframeWrapper iframe{
  vertical-align:top;
  pointer-events: none; /* let any clicks go trough me */
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="iframeWrapper">
  <iframe src="http://www.reuters.tv/" frameBorder="0"></iframe>
</div>

NOTA BENE:

No clicks will be registered by the iframe element, so a use-case would be i.e: if by clicking the iframe you want to enlarge it full screen.... Etc...
Also (kindly suggested by @Christophe) IE8 is blind to pointer-events :\

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一夜七次

3楼-- · 2019-01-03 11:06

You could attach the click to the iframe content:

$('iframe').load(function(){
  $(this).contents().find("body").on('click', function(event) { alert('test'); });
});

Note: this will only work if both pages are in the same domain.

Live demo: http://jsfiddle.net/4HQc4/

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何必那么认真

4楼-- · 2019-01-03 11:07

$(document).ready(function () {
 $('#left').click(function(event) { alert('test'); });
});

<iframe src="left.html" id="left">Your Browser Does Not Support iframes</iframe>

The script would have to be ran entirely from the iframe. I would recommend a different method of calling content, such as php.

iframes aren't really worth the hassle.

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手持菜刀，她持情操

5楼-- · 2019-01-03 11:18

I got it to work but only after uploading it to a host. I imagine localhost would work fine too.

outer

<html>
   <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    <script>
        $(document).ready(function() {
            var myFrame = document.getElementById("myFrame");
            $(myFrame.contentWindow.document).find("div").on("click", function () { alert("clicked"); });
        });
    </script>
    <body>
        <iframe id="myFrame" src="inner.htm"></iframe>
    </body>
</html>

inner

<html>
    <head>
        <style>
            div {
                padding:2px;
                border:1px solid black;
                display:inline-block;
            }
        </style>
    </head>
    <body>
        <div>Click Me</div>
    </body>
</html>

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聊天终结者

6楼-- · 2019-01-03 11:19

The actual problem is that, the click event does not bind to the DOM of the iframe and bind() is deprecated, use .on() to bind the event. Try with the following codes and you will find the borders of the iframe clickable getting that alert.

$('#left').on('click', function(event) { alert('test'); });

Demo of that Issue

So how to get it done?

How you should do is, create a function on iframe page, and call that function from that iframe page.

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