RE: new feature request

 

From: James Churchman
Sent: Wednesday, March 04, 2015 5:59 PM
To: David Dailey
Cc: www-svg
Subject: Re: new feature request

 

its a great use case and i think off the top of my head just putting the svg into an iframe has most if not all of this effect? 

On Wednesday, 4 March 2015, David Dailey <ddailey@zoominternet.net> wrote:
> When SVG is used as the src of an HTML <img> tag, all event handling is shut off. I don’t remember if this is where this is specified, but I saw it somewhere in one of the many places that one might expect to find such a thing being specified.
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> Now, it does make sense that one might not want the source of one’s image tags calling scripts and the like. We expect images to be relatively benign.
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> On the other hand, SVG is used a lot as the src of HTML img’s. If I had access to Google’s data I could demonstrate such with charts and figures and animations that would light up your occipital lobes and bring water to the dessert! One word: Wikipedia.
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> Now, one of the things SVG is used for is teaching. It is quite useful for that. Not just computer science, and math, but other disciplines as well: mechanical engineering, chemistry, physics, even anthropology!
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> And for teaching, one of the most important things is interaction.
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> Well, one of the cool things about SVG (that sometimes people forget) is SMIL. It is, in fact, one of the very coolest parts of SVG. It is a declarative technology and as such allows non programmers to do animations. That non programmers can create content that is shared over the internet… one could call such novelty the fundamental principle of the WWW!
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> It turns out that without a lick of script, one can use events to trigger animations. One can make interactive animations without script. One can even upload and display nonscripted SVG at social media sites (the current bastion and breeding ground for the animated GIF). Animated GIFs, if you haven’t noticed are not very accessible. They are a blobs of bits aggregated in the least accessible of ways. They border on bad taste if not outright immorality! And they are intrinsically, not interactive!
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> Anyhow, if the prohibition on SVG inside the image tag listening to events (SMIL events) were lifted then a) education prospers in all those parts of the world that education is valued b) accessibility is increased c) uptake of W3C standards is promoted d) the world is a better place.
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> I will call a,b,c and d the use cases.
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> Cheers
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> David
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Hi James,

 

Yeah, putting it in an i-frame or an object or an embed circumvents the limitations. The only problem is that social media sites don’t allow those for user-uploaded content since they also enable scripting by third parties. <img> is the only entrée we’ve got into the social media world!

 

Cheers

David