This supports adding users to DM pills by simply typing
a user's name in the text input directly after a complete
dm pill. It only works for DM pills at the end of search
input.
Clicking the X button removes a user from its user pill
container, and if that user was the last user left in the
container, then the whole container is also removed.
Register our `onTextInputHook` to be called on "input" events so that
the hook receives the updated text content of the input unlike the "keydown"
event which does not update the text content before running the hook.
Some files already were using `noop` in place of `() => {}`.
It's both clearer what it means and is easier to type.
This updates all test files to fully use `noop`, and
adds a shared import from the test lib file.
We should remove this overly defensive code and remove the `undefined`
type from the return type of this function to avoid handling unexpected
`undefined` values in the downstream code.
Migrated input_pill subsystem to TypeScript, used generics to make
it a generic module so that it works with different implementations
like stream_pill or user_pill.
This lets us simplify the long-ish ‘../../static/js’ paths, and will
remove the need for the ‘zrequire’ wrapper.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
