First off the port list. Every edit in v5 was final -- v4 has had undo since
store.js, which is why it never showed up in a file-by-file inventory: there
is no undo.js to find.
A project is plain JSON and a few kilobytes, so undo is a snapshot before each
edit rather than an inverse per action. Capped at 40. The SELECTION travels
with the snapshot: undoing a removal and landing on a different scene than the
one that came back is not what anyone means by "take that back".
Two things it deliberately does not do. A new edit ends the redo line, or a
redo walks into a version that never followed from what is on screen. And a
project just opened has no past -- otherwise undo reaches back across a
project switch and replaces the open project with a version of a different one.
Edit menu: undo, redo, add and delete scene, move clip either way. Built on
each press so Undo is offered only when there is something behind it; a menu
that always offers it teaches people it does nothing. ⌘Z and ⇧⌘Z do the same,
except inside a text box, where the browser's own undo is the right one --
taking it over means one keystroke un-typing a paragraph instead of a word.
View gains Reset layout, for the person who closed both panels and cannot
remember what brings them back.
digital-garbage
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