Support tiles for deep zoom, high resolution images
The zoom feature is great, but what if you supported tiled images? Check out this museum's site to see it in action:
They're using Leaflet, but there's also OpenLayers.
I doubt that I can write anything better than Leaflet, it’s very good library, and I don’t think that it’s worth to add this feature in PhotoSwipe, implementation will take ages.
Custom HTML in content of slides feature is under development. Though, there will likely be a touch events conflicts between PhotoSwipe and Leaflet iframe.
If you have huge images, consider using JUST Leaflet and switch between images via buttons, not via swipe.
Oh sure, that makes sense. But if you could have the ability to pull an iFrame, that'd be great. Then can do the zooming there. Thoughts?