Why is my javascript requiring 2 clicks instead of 1? - javascript

I'm using the following JS code to play an HTML5 custom video and - at the same time - activating an iframe, that will be launched just 27 seconds after the play video button is clicked.
But, I'm experiencing 2 issues:
The play button is requiring 2 clicks to start the video, instead of
just 1
The iframe is randomly activated even when the play video button
isn't clicked (between 25 and 40 seconds after the page is loaded,
randomly)
Any idea why?
<script type="text/javascript">window.onclick=function() {
setTimeout('document.getElementById("dwayne").style.display="block"',27000);
setTimeout('document.getElementById("blackrussian").style.display="inline"',27000);
var video=document.getElementById("167868028");
var playButton=document.getElementById("play-pause");
playButton.addEventListener("click",function(){if(video.paused==true){video.play();
playButton.innerHTML=" ";}else{video.pause();
playButton.innerHTML=" ";}});
}</script>
Here's the html part:
<video class="video-js" id="167868028" preload="false" width="910" height="510" poster="img/snapshot.jpg" data-setup="{}">
<source src="video/vid.mp4" type="video/mp4"></video>
<div class="controls"><button type="button" id="play-pause" class="play"><img src="img/play.png"></button></div>
<iframe id="dwayne" class="whiterussian" scrolling="no" marginwidth="0" marginheight="0" frameborder="0" src="files/iframe.php"></iframe>
<div id="blackrussian"></div>

You've got the playButton.addEventListener nested inside the window.onclick, could be that's what's causing the two-click requirement.
And the setTimeout is inside window.click but not inside playButton.addEventListener("click"..., meaning clicking the button will not fire it, but clicking the window will, (after 27 seconds).
window.onload=function() {
var video=document.getElementById("167868028");
var playButton=document.getElementById("play-pause");
playButton.addEventListener("click", function()
{
setTimeout('document.getElementById("dwayne").style.display="block"',27000);
setTimeout('document.getElementById("blackrussian").style.display="inline"',27000);
if(video.paused==true){
video.play();
playButton.innerHTML=" ";
}else{
video.pause();
playButton.innerHTML=" ";
}
});
}
Haven't tested the code but it should work...

Based on your query, here the simplest way to make it works.
When clicking one time anywhere on the page, the video will start. Then 27 seconds later, the iframe receive a new src url, and then load.
window.onclick=function() {
document.getElementById("167868028").play()
setTimeout(loadFrame, 27000)
}
function loadFrame(){
document.getElementById("dwayne").src = "http://arunranga.com/examples/access-control/"
}
<video id="167868028" width="91" height="51" poster="img/snapshot.jpg">
<source src="https://www.w3schools.com/html/mov_bbb.mp4" type="video/mp4">
</video>
<iframe id="dwayne" frameborder="3" src="" scrolling="yes"></iframe>

Related

How to click the video to change video source in html

I'm sorry that my english is not very good, I searched for many methods I could find on the Internet, but they were all unsuccessful.
My idea: When the website is opened, a video will be automatically played (A). When the mouse clicks on the video (rather than some buttons), video A will be replaced with video B, and keep the same size and format, and be on the same web page. And when the mouse is clicked again, video B is changed to video A again.
This is the code I tried but it failed:
function setVideo() {
document.getElementById("video-01").src="demo/2.mp4";
}
<div class="video" id="video-one" οnclick="setVideo()">
<video id="video-01">
<source src="demo/1.mp4" type="video/mp4"/>
</video>
</div>
I haven't learned how to program, so I don't know how to do it. I have tried to use in HTML to link to another video, but this will change the style of the page.
Can you help me please?
Like this?
const videoA = 'https://media.istockphoto.com/videos/attractive-woman-blogger-speaks-about-professional-voice-over-and-video-id1253606799'
const videoB = 'https://media.istockphoto.com/videos/aerial-shot-flying-along-road-with-driving-vehicles-trucks-and-cars-video-id1251170644'
document.querySelector('video').addEventListener('click', (evt) => {
const currentVideo = evt.target.getAttribute('src')
if (currentVideo === videoA) {
evt.target.setAttribute('src', videoB)
} else {
evt.target.setAttribute('src', videoA)
}
})
<video autoplay muted width="480" height="320" src="https://media.istockphoto.com/videos/attractive-woman-blogger-speaks-about-professional-voice-over-and-video-id1253606799"></video>

Don't preload video, but still show "thumbnail"

I'm trying to display many video thumbnails/posters without actually loading the video...
Bascially what I've got is the following:
<div class="col-sm-3" style="padding: 20px;" onclick='location.href="/videoDetails/{{ #video.ID }}"'>
<video width="100%" style="cursor:pointer;"
<source src="/{{ #video.path }}">
Your browser does not support the video tag.
</video>
</div>
That hole thing is in a foreach loop and with that, it loads up to 100 videos on one page...
My problem now is that this gets super slow, the more videos there are load at once..
Now I found this answer on a StackOverflow thread, where it says to use the attribute preload="none" on the video tag... That seems to speed up the loading (because it doesn't preload the videos), however, it doesn't display any image (preview) at all..
In my case, there's no reason to load the hole video though, because (as you can see in the code), the actual video is then displayed on another page, when clicking on the div.
Also, just to make sure you got me right, I want to display the auto generated preview of the first frame of the video. I can't upload a seperate image to display it with the poster attribute, it has to be the default image..
Is there any way I can achieve this? I'm also open to Javascript/jQuery solutions...
You can get video frames in different time periods with append #t in the video source url. But with the attribute preload none value you cannot get the video frames. So You need to use the metadata value in the preload attribute.
These are the three values you can use in the preload attribute:
none - Hints to the browser that the user likely will not watch the video, or that minimizing unnecessary traffic is desirable.
metadata - Hints to the browser that the user is not expected to need the video, but that fetching its metadata (dimensions, first frame, tracklist, duration, and so on) is desirable.
auto - Hints to the browser that optimistically downloading the entire video is considered desirable. - Hints to the browser that optimistically downloading the entire video are considered desirable.
You can check the below results with these three values.
<p>metadata</p>
<video width="300" height="150" controls="controls" preload="metadata">
<source src="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4#t=2" type="video/mp4" />
</video>
<p>none</p>
<video width="300" height="150" controls="controls" preload="none">
<source src="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4#t=2" type="video/mp4" />
</video>
<p>auto</p>
<video width="300" height="150" controls="controls" preload="auto">
<source src="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4#t=2" type="video/mp4" />
</video>
I would say that creating so many video HTML elements will affect performance anyhow, loading or not, since the DOM is under quite heavy pressure.
A different (and more advance) approach I would recommend is the following.
If you want that one image will load when the user clicks on it, you can "create" a video in that specific moment, triggering only the video requested.
So:
instead of the video tag, load an image with onclick listener, that will pass an ID to a JS function
when the user clicks it will create the video element.
at the same time, hide the image (or maybe a gif?)
Try to run the snippet here below :)
function myFunction(id) {
var element = document.getElementById(id);
var videlem = document.createElement("video");
element.innerHTML = '';
source = 'https://file-examples-com.github.io/uploads/2017/04/file_example_MP4_480_1_5MG.mp4';
var sourceMP4 = document.createElement("source");
sourceMP4.type = "video/mp4";
sourceMP4.src = source;
videlem.appendChild(sourceMP4);
videlem.autoplay = true;
element.appendChild(videlem);
}
<p>Click on the image</p>
<div id="img242">
<img onclick="myFunction('img242')" src="https://blog.majestic.com/wp-content/uploads/2010/10/Video-Icon-crop.png">
</div>

toggle functions in jQuery

I'm using the toggle function to show and hide content, it works well, the only problem I have is that when I place a video the video continues to play even when it is hidden, is there any way to stop playing the video when it is hidden
$(document).ready(function(){
$("button").click(function(){
$("p").toggle();
});
});
<button>Toggle</button>
<p>the video is displayed here</p>
You can do:
$(document).ready(function(){
$("button").click(function(){
$("p").toggle();
if (document.getElementById('myVideo').paused)
document.getElementById('myVideo').play();
else
document.getElementById('myVideo').pause();
});
});
If video is paused, play it and if it is playing then pause it on the click.
I think you would want to check if your wrapping p element is visible, using $("p").is(":visible").
If it is visible, pause the video using document.getElementById("yourVideoId").pause(), obviously replacing "yourVideoId" with whatever you have in the id attribute on your <video> tag. Then, after you do that, you can call .toggle() on your p element.
If it is not visible, and the user clicks your toggle button, I would imagine you would just want to show the video, and not resume playing it, as that might be a little jarring to the user. If you do want that functionality, however, just add document.getElementById("video").play() in the else block in the example below.
Here is a working example to demonstrate the functionality:
$(document).ready(function() {
$("button").click(function() {
var p = $("p");
if (p.is(":visible")) {
document.getElementById("video").pause();
$(this).text("Show");
} else {
$(this).text("Hide");
}
p.toggle();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>
<video id="video" controls width="40%">
<source src=http://techslides.com/demos/sample-videos/small.webm type=video/webm>
<source src=http://techslides.com/demos/sample-videos/small.ogv type=video/ogg>
<source src=http://techslides.com/demos/sample-videos/small.mp4 type=video/mp4>
<source src=http://techslides.com/demos/sample-videos/small.3gp type=video/3gp>
</video>
</p>
<button>Hide</button>
Added width="40%" on the video so it fits in the snippet window.

how to jump to different frame in video

CLO meeting notes
I am trying to create a video in my web app and let the user being able to click button on the page to jump to certain farm of the video.
I have something like
<video width="720" height="640" controls>
<source src='/assets/video/test.mp4' type="video/mp4">
</video>
<a href='#'>15 sec mark</a>
<a href='#'>25 sec mark</a>
<a href='#'>35 sec mark</a>
I have looked at js video page
http://www.w3schools.com/tags/ref_av_dom.asp
but it doesn't seem to provide the method or solution for it.
Can anyone given me any suggestions? Thanks a lot!
See this documentation which is more complete :
var mediaElement = document.getElementById('mediaElementID');
mediaElement.seekable.start(); // Returns the starting time (in seconds)
mediaElement.seekable.end(); // Returns the ending time (in seconds)
mediaElement.currentTime = 122; // Seek to 122 seconds
mediaElement.played.end(); // Returns the number of seconds the browser has played
Using an onclick event on the <a/> tag you should be able to set the currentTime property easily :
<video id="mediaElementID" width="720" height="640" controls>
<source src='/assets/video/test.mp4' type="video/mp4">
</video>
15 sec mark
Check out this docs. mediaElement.currentTime = 15 should do the trick.

Add event on html5 video play button

So I only want to access the play button of the video controls, no action when pressing the track bar or volume. I want something like this but with html5 video http://flash.flowplayer.org/demos/installation/multiple-players.html
jQuery(document).ready(function() {
$('.vids').click(function(){
$('.vids').each(function () {
this.pause();
});
});
});
<video controls="controls" class="vids" id="1">
<source src ....>
</video>
<video controls="controls" class="vids" id="2">
<source src ....>
</video>
....
So now all videos stop except the one I clicked but when I press the trackbar or volume, it also stops. Any solutions without making my own controls or making use of another videoplayer? I found different solutions but not as I want :S
I think you have to target the current item which you are clicking so that the clicked target get the command to process to do this try this one and see if this works for you:
$('.box').click(function(e){
$(e.target).pause();
});

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