Toggle visibility property of div

问题

I have an HTML 5 video in a div. I then have a custom play button - that works fine.
And I have the video's visibility set to hidden on load and visible when the play button is clicked, how do I return it to hidden when the play button is clicked again?

function showVid() {
  document.getElementById('video-over').style.visibility = 'visible';
}

#video-over {
  visibility: hidden;
  background-color: rgba(0, 0, 0, .7)
}

<div id="video-over">
  <video class="home-banner" id="video" controls="">
    <source src="http://video-js.zencoder.com/oceans-clip.mp4" type='video/mp4' />
    <source src="http://video-js.zencoder.com/oceans-clip.webm" type='video/webm' />
    <source src="http://video-js.zencoder.com/oceans-clip.ogv" type='video/ogg' />
    </video>
</div>

<button type="button" id="play-pause" onclick="showVid();">
      <img class="img-home-apply" src="/wp-content/images/apply-pic.png" alt="Apply Now">
      </button>

I'm basically just trying to toggle it between the two states of visible and hidden except I can't use toggle because that show's and hides the div. I need it there, just hidden, so it maintains the correct height.

回答1:

Using jQuery:

$('#play-pause').click(function(){
  if ( $('#video-over').css('visibility') == 'hidden' )
    $('#video-over').css('visibility','visible');
  else
    $('#video-over').css('visibility','hidden');
});

回答2:

I know this is an old question but I came across it researching a different problem.

According to the jquery docs calling toggle() without parameters will toggle visibility.

    $('#play-pause').click(function(){
        $('#video-over').toggle();
    });

http://jsfiddle.net/Q47ya/

回答3:

There is another way of doing this with just JavaScript. All you have to do is toggle the visibility based on the current state of the DIV's visibility in CSS.

Example:

function toggleVideo() {
     var e = document.getElementById('video-over');

     if(e.style.visibility == 'visible') {
          e.style.visibility = 'hidden';
     } else if(e.style.visibility == 'hidden') {
          e.style.visibility = 'visible';
     }
}

回答4:

To clean this up a little bit and maintain a single line of code (like you would with a toggle()), you can use a ternary operator so your code winds up looking like this (also using jQuery):

$('#video-over').css('visibility', $('#video-over').css('visibility') == 'hidden' ? 'visible' : 'hidden');

回答5:

To do it with an effect like with $.fadeIn() and $.fadeOut() you can use transitions

.visible {
  visibility: visible;
  opacity: 1;
  transition: opacity 1s linear;
}
.hidden {
  visibility: hidden;
  opacity: 0;
  transition: visibility 0s 1s, opacity 1s linear;
}

来源：https://stackoverflow.com/questions/18050761/toggle-visibility-property-of-div

标签

javascript

jquery

css

toggle

show-hide