hterm: make keybindings more flexible

There's no good reason to require exact capitalization with keys in
most cases.  We don't differentiate between "Ctrl" or "CTRL", so let
users roll with either by normalizing user inputs to uppercase.

One could make an argument about confusing "A", "a", "Shift-a", and
"Shift-A", but we already have that to some degree today with just
"A" and "Shift-A".  The benefits for other keys are outweighed imo
as requiring people to always write in uppercaps is not natural when
we require the modifiers to be mixed caps.  e.g. Ctrl-SPACE is OK,
but CTRL-Space is invalid?

We also add aliases for a lot of keys with longer names.  Many of
these keys don't have dominant forms, so accept e.g. Escape and Esc.

BUG=chromium:722718

Change-Id: Ib80a2b65f01fab2fbbe100c53deb61e9217b9358
Reviewed-on: https://chromium-review.googlesource.com/516747
Reviewed-by: Brandon Gilmore <varz@google.com>
Tested-by: Mike Frysinger <vapier@chromium.org>
4 files changed
tree: f53215a6cc5ba5ab19ff1a1407ab46f9042a64a4
  1. hterm/
  2. libdot/
  3. nassh/
  4. saltpig/
  5. ssh_client/
  6. wam/
  7. wash/
  8. .gitignore
  9. HACK.md
  10. LICENSE
  11. package.json
  12. README.md
README.md

Hello

This repository contains the libdot JavaScript library and some web applications that make use of it.

The official copy of this repository is hosted at https://chromium.googlesource.com/apps/libapps.

There is also a mirror on github at https://github.com/libapps/libapps-mirror. Keep in mind that this mirror may occasionally be behind the official repository.

All changes must go through the Gerrit code review server on https://chromium-review.googlesource.com. Github pull requests cannot be accepted. Please see the HACK.md document in this directory for the details.

Top level directories

  • libdot/ is a small set of JS libraries initially developed as part of hterm, now available as shared code. It provides a base layer for web applications. The code is intended to work in any modern browser, in either a plain web page or a “privileged” environment such as a Chrome platform application or Firefox extension. In practice, it's only been put to use in Chrome platform applications so far.

  • hterm/ is a JS library that provides a terminal emulator. It is reasonably fast, reasonably correct, and reasonably portable across browsers.

  • nassh/ is the Secure Shell Chrome App (currently a “v1.5” app, soon to become a “v2” or platform app) that combines hterm with a NaCl build of OpenSSH to provide a PuTTY-like app for Chrome users.

  • ssh_client/ is the NaCl port of OpenSSH. It is used by nassh to create the Secure Shell App.

  • wash/ is a library for cross-origin virtual filesystems, similar to the Plan 9 filesystem. This directory also contains a simple bash-like shell environment for exploring these filesystems. The code in this directory is a work-in-progress.