Re: How can I play midi and/or audio files?

Stephen Chalmers wrote:

Stephen Kellett wrote:
How can I play midi and/or audio files using JavaScript?

I have never seen a satisfactory answer to playing sound files
interactively, so here's my solution:

<html>

Not Valid. <URL:http://validator.w3.org/>

[...]
<a href='#'>Blip</a> - <a href='#'>Ding</a> - <a href='#'>Dumb</a> - <a
href='#'>Dumb</a> - <a href='#'>Chime</a>

Displays even if client-side script support and DOM support is not
available.

[...]
SCmediaPlay.prototype.playSound=function()
{

this.removeObj();

this.objRef=document.createElement('embed');

There is no `embed' element in HTML, so this is not supposed to work in a
standards compliant UA. And any UA that supports DOM Level 2 Core should
also support the standards compliant `object' element, so you should create
that.

You do not do any feature test, which is error-prone.

<URL:http://pointedears.de/scripts/test/whatami#inference>

this.objRef.setAttribute("width","0");

this.objRef.setAttribute("height","0");

this.objRef.setAttribute("hidden","true");

this.objRef.setAttribute("src", this.soundFile);

Neither of this is supposed to work. Especially, setAttribute() is known
to have buggy implementations. Both the proprietary `embed' element and
the standards compliant `object' element have `param' child elements that
should be used. (Otherwise there is no sound with certain non-common
plugins, such as the mplayer-plugin on GNU/Linux.)

[...]
document.write("<embed src='"+this.soundFile+"' hidden='true'
autostart='false' width='0' height='0'>");

See above.


PointedEars
.

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