web: Add improved undo/redo to QueryInput (!6698) · Merge requests · Administrator / sourcegraph · GitLab

Administrator requested to merge web/search-improve-undo-redo into master Nov 19, 2019

Created by: ghost

Issue: Undo is broken after selecting a suggestions

Changes:

Improve undo/redo after suggestion selection by having a js managed queryState history.
New class UndoRedoHistory provides generic undo/redo capabilities.
In search input (QueryInput): ctrl+z for undo, and ctrl+shift+z for redo