Firefox 59 removed some SVG path seg APIs which breaks path editing.
This change updates pathseg.js to the latest version which contains a fix for Firefox 59. I checked that Firefox 58 (pre-api-change), Firefox 59 (post-api-change), Chrome 65, and Safari Tech Preview can all edit paths correctly with this change. This change has a lot of diffs due to minor changes in pathseg.js since the first time it was imported into svgedit.
This fixes issue #216
The SVGPathSeg API is being removed from the spec [1] and is being
removed in Chromium 47 [2]. I implemented a drop-in polyfill[3] so
svg-edit users are not broken as browsers migrate away from the
path seg api.
This patch simply imports the upstream pathseg.js and updates all
dependencies. With this change all tests pass in Chrome 46 (with
the path seg api), Chrome 47 (without the path seg api), and
there are no changes to tests in Safari 9.01 or Firefox 43. I
also manually tested svg-edit while developing the polyfill and
could not find any broken features.
[1] https://lists.w3.org/Archives/Public/www-svg/2015Jun/0044.html
[2] https://groups.google.com/a/chromium.org/d/msg/blink-dev/EDC3cBg9mCU/OvElJgOWCgAJ
[3] https://github.com/progers/pathseg
Philip Rogers