[Javascript] Flash Detection
David T. Lovering
dlovering at gazos.com
Thu Mar 27 17:06:48 CST 2003
I'm no rocket scientist, but I would think that document.all would always prove
true, even with a blank HTML page.
Also, while you can do a string operation implicitly on a string object, it loses
its "objectness" thereafter, so that it sometimes fails to take add on functions
as you'd suppose.
Try
var myMimeTest = document.testMime.mimeType.toLowercase();
if (myMimeTest.indexOf('flash') != -1) { yada-yada...
Speaking of which, I don't see mimeType declared anywhere.
Also, while it is conceivable that in a formless environment
document.testMime (where testMime is an image object)
should work, I suspect most browsers will 'fake' a form[0] wrapper just
to conform to the DOM model. Rather than deal with this, you are almost
better off wrapping your code in a form of your own invention, even if
you have to set the action="javascript:void(null)" to keep it from
going anywhere.
If there is an imposition of a form (fake or otherwise), the path to the
img object testMime will be
document.forms[0].testMime....
I'll look this over later and in more detail and see if anything springs
out at me.
-- Dave Lovering
Marcelo Simon wrote:
>
> Hi all,
>
> I'm having a headache over this script to detect if is flash is present or
> not. If someone could see what my eyes are not seeing please help me . :)
>
> <img name="testMime" src="test.swf">
>
> <script language="JavaScript"><!--
> var can_play = false;
>
> var mimetype = 'application/x-shockwave-flash';
>
> if (navigator.mimeTypes) {
> if (navigator.mimeTypes[mimetype] != null) {
> if (navigator.mimeTypes[mimetype].enabledPlugin != null) {
> can_play = true;
> }
> }
> }
>
> if (!can_play && navigator.appVersion.indexOf('MSIE') !=-1) {
> if (document.all &&
> document.testMime.mimeType.toLowercase().indexOf('flash') !=-1) {
> can_play = true;
> }
> }
>
> if (can_play)
> window.location = 'plug.html';
> else
> window.location = 'noplug.html';
>
> //-->
> </script>
>
> TIA
> Marcelo Simon
>
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