clean copy of #97 full resolution download

[jywarren]

Noting that we're moving to the main branch, so this'll need to be merged with that.

Based on #97 by @John905

This needs some way to pass in an fullResolutionSrc so that we can warp an original image and not the preview, for example on MapKnitter.

Fixes #124 too!

Fixes #83

[jywarren]

Error is:

   src/edit/DistortableImage.Edit.js
    295 |            if (window && window.hasOwnProperty('warpWebGl')) warpWebGl(
                                                                       ^ Expected '{' and instead saw 'warpWebGl'.
    302 |        }
                  ^ Missing semicolon.
    255 |        var image = overlay._image;
                     ^ 'image' is defined but never used.
    295 |            if (window && window.hasOwnProperty('warpWebGl')) warpWebGl(
                                                                       ^ 'warpWebGl' is not defined.

[jywarren]

Fixed this, I believe!

[jywarren]

Wow, we are /almost/ there! @rexagod this is a different build process and i'm less familiar with it (even though i'm an author of this lib! 😂 ) do you have an idea of how we can include the needed lib besides where i've done it here?

https://github.com/publiclab/Leaflet.DistortableImage/pull/100/files#diff-0be9d25d2ce091e16baef1e0d91d0cf7R28

Running "jshint:source" (jshint) task
   src/edit/DistortableImage.Edit.js
    298 |                warpWebGl(
                         ^ 'warpWebGl' is not defined.

[jywarren]

@sashadev-sky are you at all familiar with Karma tests or with jshint? I'm not 100% sure but i think this is failing because we're not alerting it of the loading of warpWebGL in an external library. But it actually works locally. I'm just trying to problem solve here a bit, maybe you'd have an insight? Thanks!

[sashadev-sky]

@jywarren not familiar with them but I’ll take a look today anyway!

[jywarren]

Amazing work @rexagod -- thanks for the fixes in #129 - pulling them in here.

And i think i fixed the jpg/png error that i also introduced.

[jywarren]

Complete!!! Amazing work folks, this is a big one!

[jywarren]

Blog post coming soon!

[jywarren]

Added to MapKnitter here: publiclab/mapknitter@a5de9bd