zulip/static/js/compose_fade_helper.js

66 lines
2.1 KiB
JavaScript

import * as stream_data from "./stream_data";
import * as sub_store from "./sub_store";
import * as util from "./util";
let focused_recipient;
export function should_fade_message(message) {
return !util.same_recipient(focused_recipient, message);
}
export function clear_focused_recipient() {
focused_recipient = undefined;
}
export function set_focused_recipient(recipient) {
focused_recipient = recipient;
}
function is_pm_recipient(user_id) {
const recipients = focused_recipient.to_user_ids.split(",");
return recipients.includes(user_id.toString());
}
export function would_receive_message(user_id) {
if (focused_recipient.type === "stream") {
const sub = sub_store.get(focused_recipient.stream_id);
if (!sub) {
// If the stream isn't valid, there is no risk of a mix
// yet, so we sort of "lie" and say they would receive a
// message.
return true;
}
return stream_data.is_user_subscribed(focused_recipient.stream_id, user_id);
}
// PM, so check if the given email is in the recipients list.
return is_pm_recipient(user_id);
}
export function want_normal_display() {
// If we're not composing show a normal display.
if (focused_recipient === undefined) {
return true;
}
// If the user really hasn't specified anything let, then we want a normal display
if (focused_recipient.type === "stream") {
// If a stream doesn't exist, there is no real chance of a mix, so fading
// is just noise to the user.
if (!sub_store.get(focused_recipient.stream_id)) {
return true;
}
// This is kind of debatable. If the topic is empty, it could be that
// the user simply hasn't started typing it yet, but disabling fading here
// means the feature doesn't help realms where topics aren't mandatory
// (which is most realms as of this writing).
if (focused_recipient.topic === "") {
return true;
}
}
return focused_recipient.type === "private" && focused_recipient.reply_to === "";
}