Her is the final, short version:;
function noFilter() {
document.getElementById("highlight").setAttribute("opacity",0);
document.getElementById("highlightwing").setAttribute("opacity",0)
}
function init() {
var fsupport =
((document.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#Filter";,
"1.1")) || (!!document.createElementNS &&
/SVGFE/.test(toString.call(document.createElementNS('http://www.w3.org/2000/svg','feGaussianBlur')))))?
true : false;
if (!fsupport) noFilter();
}
document.addEventListener("DOMContentLoaded", init, false);
--- In svg-developers@yahoogroups.com, "Andreas" <paw...@...> wrote:
>
> Cool,
>
> now, i use this:
>
> function init() {
> if
> ((document.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#Filter";,
> "1.1")) || (!!document.createElementNS &&
> /SVGFE/.test(toString.call(document.createElementNS('http://www.w3.org/2000/svg','feGaussianBlur'))))){
> var fsupport = 'true';
> } else{
> var fsupport = 'false';
> }
> if (fsupport != 'true') noFilter();
> }
>
>
>
> Try this:
> http://labs.pixelfans.de/Twitterbird3_withJS.svg
>
>
> --- In svg-developers@yahoogroups.com, "Erik Dahlstrom" <ed@> wrote:
> >
> > On Thu, 25 Nov 2010 19:05:58 +0100, Andreas <pawelf@> wrote:
> >
> > > That works, but what is
> > >
> > > /SVGFE/.test ?
> >
> > That's a regexp string match on the returned object, all SVG filter
> > primitive interfaces start with "SVGFE", eg "SVGFEConvolveMatrixElement"
> > [1].
> >
> > Like Chris Peto writes, it doesn't work in IE8 with the Adobe plugin. My
> > suggested way of testing was meant primarily for checking for native
> > support. Also the Adobe plugin support docs[2] doesn't list all the svg
> > filter primitive elements in the DOM section, which could be another
> > reason for failing there. An alternative could be to use a two-level test,
> > first check with hasFeature, and if that returns false check using the DOM
> > interfaces.
> >
> > Cheers
> > /Erik
> >
> > [1]
> > http://www.w3.org/TR/SVG11/filters.html#InterfaceSVGFEConvolveMatrixElement
> > [2] http://www.adobe.com/svg/indepth/pdfs/CurrentSupport.pdf
> >
> > --
> > Erik Dahlstrom, Core Technology Developer, Opera Software
> > Co-Chair, W3C SVG Working Group
> > Personal blog: http://my.opera.com/macdev_ed
> >
>
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