Is there any way, in HTML, to include an animated GIF in an <img> tag, but automatically tell the GIF to not animate? I realize that the user can stop animation by pressing ESC or clicking Stop, but I want the GIFs not to animate at all.
I only want to do this on one specific page, and making separate non-animated versions of the (1500+) GIFs is not feasible. I simply want the GIFs to not animate.
You could use Giffer.
Just include the library in your page:
<script type="text/javascript" src="gifffer.min.js"></script>
Instead of setting src attribute on your image use data-gifffer.
<img data-gifffer="image.gif" />
At the end, call Gifffer() whenever you want. For example:
window.onload = function() {
Gifffer();
}
If you don't want the GIF to move at all you can always edit the .js file to remove the play button.
Not with plain HTML but using PHP with imagecreatefromgif might help you
I don't think calling window.stop() will be a good solution. This would need to be called for every image that is loaded to prevent it from running half way through and stopping. The best solution is to use a library such as GD to create images featuring just the first frame of the animated GIF.
Use ImageMagik, and you can readily convert all 1500 images.
You could use window.stop() in javascript, which should be the equivalent of pressing ESC/clicking stop. However, I'm pretty sure it won't work in all browsers (i.e. IE).
Related
I have an animated gif in an img tag that I start by rewriting the src attribute. The gif was created, though, to loop and I only want it to play once. Is there a way, with Javascript or jQuery, to stop an animated gif from playing more than once?
I was having the same problem with an animated gif. The solution is rather simple.
Open the Animated gif in Photoshop.
Go to the Window tab and select timeline(if the timeline is not already open).
At the bottom of the timeline panel, you will find an option, which says "Forever".
Change that to "Once".
Go to File> Export> Export for Web and save it as a gif.
That should do it.
can you find out how long the gif takes to loop once?
if so then you can stop the image like this:
pseudocode:
wait until the end of the image (when it is about to loop)
create a canvas element that has a static version of the gif as currently displayed drawn on it
hide gif
display canvas element in a way that makes it look like the gif froze
javascript:
var c = $("canvas")[0];
var w = c.width;
var h = c.height;
var img = $("img")[0];
setTimeout(function () {
c.getContext('2d').drawImage(img, 0, 0, w, h);
$(img).hide();
$(c).show();
},10000);
jsfiddle
edit:
I forgot to add reference to the original answer that I took this from, sorry
Stopping GIF Animation Programmatically
that one doesn't address the time factor you need for only one loop
Also, it has been mentioned that this approach is problamatic in certain cases (It actually didn't work when I try it in firefox right now...). so here are a few alternatives:
mentioned by Mark: edit the gif itself to avoid looping. this is the best option if you can.
but I've run into cases where it was not an option (like automated generation of images by a third party)
instead of rendering the static image with canvas, keep a static image version and switch to stop looping . this probablyhas most of the problems as the canvas thing
Based on this answer, it's kinda expensive, but it works. Let's say a single loop takes 2 seconds. At a setTimeout after 2 seconds kick in a setInterval, that would reset image source every millisecond:
setTimeout(function() {
setInterval(function() {
$('#img1').attr('src',$('#img1').attr('src'))
},1)
}, 2000)
again, probably just a proof of concept, but here's demo: http://jsfiddle.net/MEaWP/2/
Actually it is possible to make a gif to stop after just one iteration or any specific number of iterations, see an example below (if it is not already stopped), or in jsfiddle.
To do that the gif must be created with number of iterations specified. This could be done using Screen to Gif, it allows to open a gif or a bunch of images and edit it frame by frame.
This solution also allows you to reset the animation by imgElem.src = imgElem.src; but this does not work in MS IE/Edge.
Jurijs Kovzels's answer works in some condition but not in all.
This is browser-dependent.
It works well with Firefox. But In Google Chrome and Safari, it does not work if the gif is on the same server. The example he provided works because the gif is on the external server.
To restart gifs stored on the internal server, using Google Chrome and Safari, you need extra steps to make it work.
const img = document.getElementById("gif");
img.style = "display: none;";
img.style = "display: block;";
setTimeout(() => {
img.src = img.src;
}, 0);
This is inspired by this answer.
Not sure if this is the best way to respond to everyone and have it appear after all the previous answers and comments, but it seems to work.
I don't have much control over the gif. People post whatever gif they want as the "thankyou.gif in their account directory and then the ThankYou code runs whatever they've put there when a comment is submitted to a form they've posted. So some may loop, some may not, some may be short, some may be long. The solution I've come to is to tell people to make them 5 seconds, because that's when I'm going to fade them out, and I don't care if they loop or not.
Thanks for all the ideas.
I know I am pretty late here but..here it is...
I don't know if you would go to this length but let me share a trick.
Open the GIF in Macromedia Flash 8(it has deprecated since then), Export the GIF as Animated GIF. You will have to choose the file location. After that you would receive a dialog box with settings. In that, add the number of times you want the animation to happen. Click OK. Problem solved.
I wonder if there is a way to prevent a browser from actually animating an animated gif, loaded in a <img> tag.
I just want it to display the first frame of the gif and don't play the animation.
I already fear that this isn't possible and I have to extract the first frame and render it to a canvas.
This is kinda an expensive solution, but if you reset image SRC on a very short setInterval it appears as static e.g:
setInterval(function() {
document.getElementById('img1').src = document.getElementById('img1').src
},1)
Demo: http://jsfiddle.net/MEaWP/6/
Maybe this is too simple an answer for you but you could just open the animated GIF in a image editing program of your choice, i.e. Adobe Photoshop or any other free one, and then just save out the GIF without the animation.
Then re-upload the new GIF (without the animation) to wherever you are serving your images from.
If you do use Photoshop you can simply open the file.GIF and go to Window>Animation in the Menu. This will display all the frames in the animated GIF in a new dialog box.
Just delete all the frames and Save As. Just don't overwrite the original with the animation if you will still need that later.
Three part question...
I'm using http://syddev.com/jquery.videoBG/index.html for HTML 5 video background on my site. Works perfectly! However I have some additional functions I want to add on but not quite sure how to pull it off.
1_ I would like to add a button to mute/unmute audio. I'm not that great at jquery so what I'm looking for is what I need to add to the existing code to make it happen and what I need to put in the place where I want the actual button to go. I'm guessing I need to add some mute option to...
$('.bg').videoBG({
position:"fixed",
zIndex:0,
mp4:'_video/ClimbBG.mp4',
ogv:'_video/ClimbBG.ogv',
webm:'_video/ClimbBG.webm',
poster:'_images/ClimbBG.jpg',
opacity:1,
fullscreen:true,
});
Then some function/code in the spot I want the button to be?
2_ I would like to have a different random video load each time the site is loaded. Maybe even have a new video play after the first one is finished?
Example...This site loads a different video when the page is refreshed ( cabin-time.com )
3_ Not super important but I've noticed a lot of people who use video backgrounds have little dots in the video (cabin-time.con is one example). I'm guessing this is to reduce file size? Most likely done in Final Cut? How do I add this into my video and does it really reduce file size?
Thanks!!!
Unfortunately, VideoBG does not support mute, so you can't just 'add mute option' to it, you'll need to make it yourself.
Here are some points to get you started, edit the videoBG.js, to add a 'muted' attribute ( http://syddev.com/jquery.videoBG/jquery.videoBG.js )
......
// video element
var $video = $('<video/>');
$video.css('position','absolute')
.css('z-index',options.zIndex)
.attr('poster',options.poster)
.attr('muted',options.muted)
.css('top',0)
.css('left',0)
.css('min-width','100%')
.css('min-height','100%');
.......
// these are the defaults
$.fn.videoBG.defaults = {
mp4:'',
ogv:'',
webm:'',
poster:'',
autoplay:true,
loop:5,
sclae:false,
position:"absolute",
opacity:1,
textReplacement:false,
zIndex:0,
width:0,
height:0,
muted:false
Now you can add muted:true to your properties
A client wants the company I work for to build an expandable flash banner, I'm a dev, so my solution is: stack 2 flash banners, small one visible, big one on top of it, with display:none, catch the click event, animate the big one into position.
The client wants it done without javascript (their banner rotation network doesn't support additional javascript).
I'm baffled, as I have no clue how a flash file can modify it's own html embed code and the css styles and as far as I'm aware, it's not possible.
Any suggestions/ideas? Is there an api in flash to talk to the html file, is there some actionscript magic that could make this happen?
Thank you for your time
You can talk to the parent HTML file via the ExternalInterface API.
You can pass the call() method entire javascript functions to do what you need. This way, you don't have to add extra javascript to the parent HTML file.
For example:
ExternalInterface.call("function() { document.getElementById(\'foo\').dosomemagichere; }");
I have a Flash-based SWFUpload upload button in a HTML page.
I am trying to style that button. SWFUpload provides a Javascript setup interface to the Flash button's settings. I don't have Flash myself, so I have to work with the pre-compiled SWF file.
.....
button_width: "100",
button_height: "20",
button_placeholder_id: "spanButtonPlaceHolder",
button_text: '<span class="theFont">Upload</span>',
button_text_style: ".theFont { font-size: 18; font-family: Verdana; color: #FFFFFF; }",
button_text_left_padding
....
Now, I want the button to fit in with the background colour of the HTML element it resides on. I don't care whether I achieve this by transparency, or by giving the flash button a colour. But SWFUpload 2.20 doesn't have a setting to specify the background colour any more, and I don't want to use a background image with a specified colour.
I tried
button_window_mode : SWFUpload.WINDOW_MODE.TRANSPARENT,
this gives me a transparent button, but it does not react to click events any more. Not even when I click the tiny white pixels of the text.
I tried giving it a transparent background image:
button_image_url : "$swfupload_widget_webroot/images/transparent.png", // 1x1 Pixel
button_image_width: 100,
button_image_height: 20,
but to no avail.
Does anybody have an idea what to do?
Why won't the movie handle clicks any more when set to transparent?
I'm testing on Firefox 3.5 on Windows 7.
Window modes like transparent and opaque are notorious for the odd input bugs they inflict. It is definitely a good idea to stay away from it when you can.
I haven't used SWFUpload, so I'm not entirely sure how it goes about embedding the SWF file. But regardless of the specifics, in the end I'm sure it's using embed/object tags, and for those, there's the bgcolor parameter that overrides the background color specified inside the SWF file. I would suggest taking a look at this parameter (scroll down).
SWFObject is a common way to dynamically embed SWF files using javascript. In case that's what SWFUpload uses, you should be able to apply the following principle to set the bgcolor parameter:
var params = {
bgcolor: #ffcc00,
};
swfobject.embedSWF("myContent.swf", "myContent", "300", "120", "9.0.0",
"expressInstall.swf", {}, params, {});
As I said, I'm not sure what the SWFUpload interface looks like, but the key is to find a way to specify the embed parameters. Hopefully that will at least nudge you in the right direction!
I noticed that with mode=transparent or mode=opaque the flash was seeing the mouse just not the click. So in the flash file I changed the button action from
on (release) {
to
on (rollOver) {
and wouldn't you know, it works. It's a little quirky since people will click on it anyway and will have to move the mouse off the button to "click" it again. But it's better than having to redesign the whole homepage menu because a client wants a flash banner on there.
Naturally, if you don't have the ability to edit the flash file itself then unfortunately this won't help.