The patch for https://bugs.webkit.org/show_bug.cgi?id=119686 will provide a new gradients editor but its angle input doesn't support drag-to-adjust the way numbers in CodeMirror editors allow. This would be a great way to adjust the angle, so we should support a similar system. This will likely mean that we'd have to generalize CodeMirrorDragToAlterNumberController to work with CodeMirror editors as well as other types of text values, probably with a simple delegate system.
Created attachment 224856 [details]
Comment on attachment 224856 [details]
Clearing flags on attachment: 224856
Committed r164540: <http://trac.webkit.org/changeset/164540>
All reviewed patches have been landed. Closing bug.