Commit Graph

124 Commits

Author SHA1 Message Date
Anders Kaseorg b0253c5a2e eslint: Enable arrow-parens.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:53:39 -07:00
Anders Kaseorg b019d7ffe8 typeahead: Convert to ES6 module.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-19 14:36:42 -08:00
Anders Kaseorg 59d55d1e06 js: Use modern spread arguments syntax.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-11 17:43:35 -08:00
Anders Kaseorg 70ff164f89 js: Convert _.any(a, …), _.some(a, …) to a.some(…).
And convert the corresponding function expressions to arrow style
while we’re here.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg ef50346a29 js: Convert _.reject(a, … => …) to a.filter(… => !…).
And convert the corresponding function expressions to arrow style
while we’re here.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 4948240619 js: Convert _.filter(a, …) to a.filter(…).
And convert the corresponding function expressions to arrow style
while we’re here.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg 719546641f js: Convert a.indexOf(…) !== -1 to a.includes(…).
Babel polyfills this for us for Internet Explorer.

import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import K from "ast-types/gen/kinds";
import fs from "fs";
import path from "path";
import process from "process";

const checkExpression = (node: n.Node): node is K.ExpressionKind =>
  n.Expression.check(node);

for (const file of process.argv.slice(2)) {
  console.log("Parsing", file);
  const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
    parser: path.extname(file) === ".ts" ? tsParser : babelParser,
  });
  let changed = false;

  recast.visit(ast, {
    visitBinaryExpression(path) {
      const { operator, left, right } = path.node;
      if (
        n.CallExpression.check(left) &&
        n.MemberExpression.check(left.callee) &&
        !left.callee.computed &&
        n.Identifier.check(left.callee.property) &&
        left.callee.property.name === "indexOf" &&
        left.arguments.length === 1 &&
        checkExpression(left.arguments[0]) &&
        ((["===", "!==", "==", "!=", ">", "<="].includes(operator) &&
          n.UnaryExpression.check(right) &&
          right.operator == "-" &&
          n.Literal.check(right.argument) &&
          right.argument.value === 1) ||
          ([">=", "<"].includes(operator) &&
            n.Literal.check(right) &&
            right.value === 0))
      ) {
        const test = b.callExpression(
          b.memberExpression(left.callee.object, b.identifier("includes")),
          [left.arguments[0]]
        );
        path.replace(
          ["!==", "!=", ">", ">="].includes(operator)
            ? test
            : b.unaryExpression("!", test)
        );
        changed = true;
      }
      this.traverse(path);
    },
  });

  if (changed) {
    console.log("Writing", file);
    fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
  }
}

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Steve Howell 67a3af4d88 emojis: Make it easier to type smiley icons.
We now give "slight smile" precedence over
"small airplane" if you type "sm".

More generally, we favor popularity over prefix
matches for emoji matches, as long as the popular
emoji matches on any of its pieces.
2020-01-28 12:48:02 -08:00
Steve Howell a87798bb8e refactor: Use Set for popular emojis. 2020-01-28 12:48:02 -08:00
Steve Howell 345fcd3a69 mobile sharing: Move sort_emojis into typeahead. 2020-01-28 12:48:02 -08:00
Steve Howell 011d52470c refactor: Move popular_emojis to typeahead library.
I removed a slightly confusing code comment, which I
will address in a follow up commit.  Basically,
"slight smile" still doesn't win over "small airplane"
when you search for "sm", which kind of defeats the
purpose of having popular_emojis for the typeahead
use case.  This is a problem with sort_emojis, though,
so when the comment was next to the list of popular
emojis, it wasn't really actionable.
2020-01-28 12:48:02 -08:00
Steve Howell 16ae53890b refactor: Move util.prefix_sort to typeahead.triage. 2020-01-28 12:48:02 -08:00
Steve Howell d0453dc8f4 performance: Use startsWith in many places.
Using startsWith is faster than indexOf, especially for long strings
and short prefixes.  It's also a lot more readable.  The only reason
we weren't using it was when a lot of the code was originally written,
it wasn't available.
2020-01-28 12:47:37 -08:00
Steve Howell 4125eb28fd mobile sharing: Extract shared/js/typeahead.js.
This extracts get_emoji_matcher and all the
functions it depended on, most of which were
in composebox_typeahead.js.

We also move remove_diacritics out of the people
module.

This is the first major step for #13728.
2020-01-27 16:32:11 -08:00
Anders Kaseorg 28f3dfa284 js: Automatically convert var to let and const in most files.
This commit was originally automatically generated using `tools/lint
--only=eslint --fix`.  It was then modified by tabbott to contain only
changes to a set of files that are unlikely to result in significant
merge conflicts with any open pull request, excluding about 20 files.
His plan is to merge the remaining changes with more precise care,
potentially involving merging parts of conflicting pull requests
before running the `eslint --fix` operation.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-11-03 12:42:39 -08:00
Greg Price 3a74de2ade shared: Bump version to 0.0.2.
This will let us update mobile to use this version.
2019-10-24 14:56:56 -07:00
Greg Price 71596648c2 typing_status: Switch sentinel "recipient" value to `null`.
This feels a bit more semantically appropriate: it more clearly says
"here's some information: there is no (relevant) recipient", rather
than "no information available".  (Both `null` and `undefined` in JS
can have either meaning, but `undefined` especially commonly means
the latter.)

Concretely, it ensures a bit more explicitness where the value
originates: a bare `return;` becomes `return null;`, reflecting the
fact that it is returning a quite informative value.

Also make the implementation more explicit about what's expected here,
replacing truthiness tests with `!== null`.  (A bit more idiomatic
would be `!= null`, which is equivalent when the value is well-typed
and a bit more robust to ill-typing bugs.  But lint complains about
that version.)
2019-10-24 14:56:56 -07:00
Greg Price a191890213 typing_status: Fold `stop` into main method `update`.
It'd already been the case for some while that calling `stop` had the
same effect as calling `update` (previously `handle_text_input`) with
a falsy recipient.  With the API changes in the previous few commits,
this becomes quite natural to make explicit in the API.
2019-10-24 14:56:56 -07:00
Greg Price e639b0a6f8 typing_status: Write jsdoc for main entry point, and rename.
This was named after when it gets called from the UI, rather than
after what it can be expected to do.

Naming it after what it's meant to do -- and giving a summary line to
expand on that -- provides a more helpful semantic idea for reasoning
about the function.  Doubly so for using the function in a different
client with its own UI, like the mobile app.
2019-10-24 14:56:56 -07:00
Greg Price dcb5bb7914 typing_status: Combine two parameters into one, with a maybe-type.
The main motivation for this change is to simplify this interface
and make it easier to reason about.

The case where it affects the behavior is when
is_valid_conversation() returns false, while current_recipient
and get_recipient() agree on some truthy value.

This means the message-content textarea is empty -- in fact the
user just cleared it, because we got here from an input event on
it -- but the compose box is still open to some PM thread that we
have a typing notification still outstanding for.

The old behavior is that in this situation we would ignore the
fact that the content was empty, and go ahead and prolong the
typing notification, by updating our timer and possibly sending a
"still typing" notice.

This contrasts with the behavior (both old and new) in the case
where the content is empty and we *don't* already have an
outstanding typing notification, or we have one to some other
thread.  In that case, we cancel any existing notification and
don't start a new one, exactly as if `stop` were called
(e.g. because the user closed the compose box.)

The new behavior is that we always treat clearing the input as
"stopped typing": not only in those cases where we already did,
but also in the case where we still have the same recipients.
(Which seems like probably the common case.)

That seems like the preferable behavior; indeed it's hard to see
the point of the "compose_empty" logic if restricted to the other
cases.  It also makes the interface simpler.

Those two properties don't seem like a coincidence, either: the
complicated interface made it difficult to unpack exactly what
logic we actually had, which made it easy for surprising wrinkles
to hang out indefinitely.
2019-10-24 14:56:56 -07:00
Greg Price 5c220ed11a typing_status: Use parameters for data rather than callbacks.
The real purpose these two callbacks serve is exactly what an ordinary
parameter is perfect for:
 * Each has just one call site, at the top of the function.
 * They're not done for side effects; the point is what they return.
 * The function doesn't pass them any arguments of its own, or
   otherwise express any internal knowledge that doesn't just as
   properly belong to its caller.

So, push the calls to these callbacks up into the function's caller,
and pass in the data they return instead.

This greatly simplifies the interface of `handle_text_input` and of
`typing_status` in general.
2019-10-24 14:56:56 -07:00
Greg Price 07322d78a0 typing_status: Pull is_valid_conversation call up to top.
This is intended as a pure refactor, making the data flow clearer in
preparation for further changes.  In particular, this makes it
manifest that the calls to `get_recipient` and `is_valid_conversation`
don't depend on anything else that has happened during the call to
`handle_text_input`.

This is indeed a pure refactor because
 * is_valid_conversation itself has no side effects, either in the
   implementation in typing.js or in any reasonable implementation,
   so calling it sooner doesn't affect anything else;
 * if we do reach it, the only potentially-side-effecting code it's
   moving before is a call to `stop_last_notification`, and that in
   turn (with the existing, or any reasonable, implementation of
   `notify_server_stop`) has no effect on the data consulted by
   the implementation of `is_valid_conversation`.
2019-10-24 14:56:56 -07:00
Greg Price b70b7df22c shared: Describe interface of typing_status in Flow.
This allows the mobile app to stay well-typed while using this code.
2019-10-17 16:48:23 -07:00
Greg Price a63786ac0d shared: Set up a way to share some frontend code with the mobile app.
This adds the general machinery required, and sets it up for the file
`typing_status.js` as a first use case.

Co-authored-by: Anders Kaseorg <anders@zulipchat.com>
2019-10-17 16:48:23 -07:00