I am really having a hard time configuring video.js for IE8. The docs just say: include the js and css file. Version 5 uses ES5, IE8 just supports ES3. Use this shim.
So my setup looks like described:
<video id="video" class="video-js vjs-default-skin video-one" preload="auto" controls width="960" height="540">
<source src="assets/video/test.mp4" type="video/mp4" />
<source src="assets/video/test.ogg" type="video/ogg" />
<source src="assets/video/test.wmv" type="video/wmv" /> <!-- ignore this one -->
</video>
<script src="js/modernizr-custom.js"></script>
<script src="js/jquery-1.11.3.min.js"></script>
<!--[if IE 8]>
<script src="js/videojs-ie8.min.js"></script>
<![endif]-->
<script src="js/video.js"></script>
<script src="js/scripts.js"></script>
But, when I visit the site in IE8, I get:
"Error: the object doesnt support this method" in line 18139 in
player.js."
This is the relevant code in function _logType(type, args):
// call appropriate log function
if (console[type].apply) {
console[type].apply(console, argsArray);
} else {
// ie8 doesn't allow error.apply, but it will just join() the array anyway
console[type](argsArray.join(' '));
}
I removed the whole block for the sake of testing. Then, new error:
"Die Eigenschaft "play" eines undefinierten oder Nullverweises kann
nicht abgerufen werden."
which I guess has something to do that a function play is called on a null object.
So, few questions:
What did I do wrong?
Why dont I have to upload/ specify a swf file
anymore like in the older version?
The IE8 shim script must be in the document head. The regular script can be in the body or head.
To make things easier, we created a single file you can include for IE8 support. No matter where the core Video.js library is placed, this file needs to be located in the head of the document.
The CDN-hosted SWF will be used by default. If you want, you can override the location with videojs.options.flash.swf = 'path/relative/to/page.swf'.
Related
In a presentation, I would like to create a Twitter Timeline with a few selected tweets. In the best case it should look as natural as if someone went to Twitter on his own computer or saw it on his smartphone.
I am using LateX Beamer for the rest of the slides, but I am flexible if it is another software that allows to export a PDF/Image that I could include in LateX.
(There are a lot of tools on how to integrate live Tweets in PowerPoint / Keynote , but I want to do it for historical tweets and will be offline during the presentation.)
I was trying the following:
- Simply take screenshots of the tweet and arrange them within LateX or PowerPoint. Looks ok but not super nice, and quite cumbersome to do.
Since it is possible to extract an html of a tweet to embed on a homepage, I thought of doing this for the presentation. Unfortunately, I don't know much of html / reveal.js presentations.
Has anybody found a good solution for a similar problem?
EDIT:
I started reveal.js and found the following plugin: https://github.com/rajgoel/reveal.js-plugins/tree/master/embed-tweet
I was then trying to apply it and followed the intros to reveal.js and also saved the source code of the plugin into my plugin folder for reveal.js. However, it does not work (=Returning a blank page in the html). Can anybody point me to my error? (I am completely new to reveal.js / html so sorry if it is basic?)
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Reveal.js 3 Slide Demo</title>
<link rel="stylesheet" href="css/reveal.min.css">
<link rel="stylesheet" href="css/theme/default.css" id="theme">
<!--Add support for earlier versions of Internet Explorer -->
<!--[if lt IE 9]>
<script src="lib/js/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<!-- Wrap the entire slide show in a div using the "reveal" class. -->
<div class="reveal">
<!-- Wrap all slides in a single "slides" class -->
<div class="slides">
<!-- ALL SLIDES GO HERE -->
<!-- Each section element contains an individual slide -->
<section>
<div class="tweet" data-src="https://twitter.com/marcfbellemare/status/972558957645631488"></div>
</section>
</div>
</div>
<script src="lib/js/head.min.js"></script>
<script src="js/reveal.min.js"></script>
<script>
// Required, even if empty.
Reveal.initialize({
// ...
dependencies: [
// ...
{ src: 'plugin/embed-tweet/embed-tweet.js' },
// ...
]
});
</script>
</body>
</html>
I have a single page website which lists a collection of HTML5 audio players. The problem is the site has become slow because the following browsers start predownloading the content (mp3 and ogg)
Internet Explorer
Google Chrome
Firefox
Safari
(probably Opera)
I use the basic code to implement the players. Is there a way I can prevent the browsers from predownloading the audio files and only work when they click play?
<audio controls="controls" height="32" width="300" tabindex="0">
<source type="audio/mpeg" src="http://cdn.com/track.mp3"></source>
<source type="audio/ogg" src="http://cdn.com/track.ogg"></source>
</audio>
<audio controls="controls" preload="none">
<source src="song.ogg" type="audio/ogg" />
<source src="song.mp3" type="audio/mpeg" />
Your browser does not support the audio element.
</audio>
Note - preload="none" - can be used with VIDEO HTML5 and AUDIO HTML5.
The preload attribute is supported in all major browsers, except Internet Explorer and Opera.
MSIE still accounts for some 30% of all web traffic, so preload="none" is only a part solution. In a few pages where I had this problem, I add a small script to my page headers:
<script type="text/javascript">
function addAudio(t) {
var l=t.innerHTML.length;
var audioName=t.parentElement.id;
if( t.children.length==0) {
t.innerHTML=t.innerHTML+' <audio controls="controls"><source src="'+
audioName+'.ogg" type="audio/ogg" /><source src="'+
audioName+'.mp3" type="audio/mp3" /> No audio tag support</audio>';
}
}
</script>
and then use DHMTL to dynamically add the audio tag, for example:
<li id="2_Lesson_1_Hello"><span onclick="addAudio(this)">Γεια σας</span></li>
What this does is to define a list item containing a text span. When the person browsing clicks on the spanned text, the javascript fires and appends the <audio> tag. You could alternatively use the onmouseover attribute so that the audio tag is added on hover.
Add the preload attribute to the generated code if you wish. This is the simple approach, but if you are already using jQuery on your webpage, I note that this offers elegant alternatives.
Example CSS
#wrap{margin:20px}
Code prettify wraps the whole line in .com
<span class="com">#wrap{margin:20px}</span>
Somebody has a similar issue here.
Where someone answers "Are you loading lang-css.js?".
Here's what I'm loading in the footer.
<script src="/js/google-code-prettify/lang-css.js"></script>
<script src="/js/google-code-prettify/prettify.js"></script>
I can see both of them with web inspector. I tried changing the order and loading them from the header. I'm using the latest version.
All help is greatly appreciated :)
Thanks!
The order you link to the javascript files matters. You need to call the base code (prettify.js) first followed by the css specific code (lang-css.js). You can place the script tags either in the head section or at the end of the document... both work but placing at the end of the document will speed up the page load.
<script src="/js/google-code-prettify/prettify.js"></script>
<script src="/js/google-code-prettify/lang-css.js"></script>
You will also need to ensure that you are linking the stylesheet in the head of your document.
<link rel="stylesheet" type="text/css" href="/css/prettify.css">
You also need to add the correct classes your pre tag(s). The syntax-highlighting functions contained in lang-css.js will not be called without adding the class "lang-css" to the <pre> tag.
<pre class="prettyprint lang-css linenums">
Finally, make sure you call the "prettyPrint()" function on page load.
<body onload="prettyPrint()">
I just followed the below link to set up syntaxhighlighter on my blog:
http://www.craftyfella.com/2010/01/syntax-highlighting-with-blogger-engine.html
But as given in this link, i tried to use the brush plain but i am getting the error as can't find brush for : plain
Any suggestions?
I use to use GIT hub to do this work in pretty much 8 simple steps,
1) Browse to https://gist.github.com
2) Add a Gist Description (optional)
3) Add a file name with an extension (extension will be used to add syntax highlighting)
4) Add your code snippet which need to be added to your blog post
5) Click “Create Public Gist” button at the bottom
6) Click on the “embed” link and copy the script generated
This is all from Gist side. Now to Blogger,
Paste the script where you need to add the code snippet
Make sure to select the option “Interpret typed HTML” under Post Options -> Compose Settings
I found this steps in this blogspot
Remember how you added the files at the top of the HTML of your page for the essential SyntaxHighlighter CSS files and JavaScript brush files? The website tutorial you found does not add the brush plain to its list of brushes. All you have to do is add this (http://agorbatchev.typepad.com/pub/sh/3_0_83/scripts/shBrushPlain.js) JavaScript file under the other brush files that look like this:
<link href='http://alexgorbatchev.com/pub/sh/current/styles/shCore.css' rel='stylesheet' type='text/css' />
<link href='http://alexgorbatchev.com/pub/sh/current/styles/shThemeEclipse.css' rel='stylesheet' type='text/css' />
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shCore.js' type='text/javascript' />
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushCss.js' type='text/javascript' />
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushJScript.js' type='text/javascript' />
<script src='http://agorbatchev.typepad.com/pub/sh/3_0_83/scripts/shBrushXml.js' />
Basically, just add this under your other brushes:
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushPlain.js' type='text/javascript' />
I want to know how can one actually use a .svg file In a web page?
See svgweb quickstart and the svgweb project homepage for something that works in all browsers including IE (requires flash plugin).
There are many ways to include an existing svg file:
<img src="your.svg"/>
<object data="your.svg"/>
<iframe src="your.svg"/>
<embed src="your.svg"/>
<div style="background:url(your.svg)">...</div>
If all you want to do is to place an SVG image such as a logo or static diagram, you just need to be careful to provide a fallback for older versions of Internet Explorer (i.e. versions 8 and earlier).
The best and simplest method I've found is to use a .png or .jpg for your fallback, placed using a normal img tag. You then wrap the img tag in an object tag, using the data attribute to place the SVG.
<object data="/path-to/your-svg-image.svg" type="image/svg+xml">
<img src="/path-to/your-fallback-image.png" />
</object>
The img fallback is only loaded and used if the browser doesn't understand SVG.
I recommend putting the svg inline into your document (html5 technique). Just open your SVG file, copy the SVG tag and everything insideof it and then paste it into your html document.
<html>
<body>
<svg></svg>
</body>
</html>
It has the advantage that this allows you to use css to style it, like changing the fill color or applying filters to it like blur. Another advantage is that you save one http request for fetching the svg file if it is inside of your document.
If you want for example to change its position using css, then you have to put the css inside of a style attribute. Styles that are in an external css file will not get applied in most browser as this is a security restriction. For example:
<svg id="mySVG" style="position: absolute; top: 200px; left: 200px;"></svg>
This technique is supported by all browsers except IE8 and below as well as the android 2.3 browser and below.
Read the chapter inline SVG for further details:
css-tricks.com Using SVG
developer.mozilla.org SVG In HTML Introduction
If you dont want to put it inline in your page then the best alternative seems to be the object tag and avoid using the embed tag.
Read this for further details about object vs embed vs img tag:
How to Add Scalable Vector Graphics to Your Web Page
http://www.w3schools.com/svg/svg_inhtml.asp
The best example:
<embed src="rect.svg" width="300" height="100"
type="image/svg+xml"
pluginspage="http://www.adobe.com/svg/viewer/install/" />
Caspar's approach is the proper one. However, I would move the fallback to the CSS, since you probably want to apply some styles to the svg file itself...
<object data="/path-to/your-svg-image.svg" type="image/svg+xml" class="logo"> </object>
CSS
.no-svg .logo {
width: 99px;
height: 99px;
background-image: url(/path-to/your-png-image.png);
}`
Raphaël—JavaScript Library. Nice javascript library that is using svg, and gives you a large range of effects!
Also supports most browsers, including IE
I'd like to agree with the answer from "code-zoop". Although this technically doesn't answer your question, it might also be a solution: enter the relevant data straight into the HTML. Either directly as an svg element, or by using Raphaël-JS.
From w3c-schools:
SVG is all suported in In Firefox, Internet Explorer 9, Google Chrome,
Opera, and Safari you can
<html>
<body>
<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
<circle cx="100" cy="50" r="40" stroke="black"
stroke-width="2" fill="red"/>
</svg>
</body>
</html>
(end of quote)
And to think even more outside the box, depending on how you want to use it, you can also put your 1-color graphics in a webfont. (see for example iconmoon.io )