UI for channel subscription settings other than muted/unmuted

[chrisbobbe]

Probably a followup to:

• UI for channel muting/unmuting #347

Here's my thought for what's highest priority of these settings, copy-pasting from the API doc:

• "is_muted": (tracked already in UI for channel muting/unmuting #347)
• "pin_to_top": Whether to pin the channel at the top of the channel list.
• "push_notifications": Whether to trigger a mobile push notification for all messages sent to the channel.
• "wildcard_mentions_notify": Whether wildcard mentions trigger notifications as though they were personal mentions in this channel.

I think a "channel action sheet", in the style of the existing topic action sheet, is a fine place for these per-user-per-channel settings to go.

The other settings (lower priority IMO) are:

• "color": The hex value of the user's display color for the channel.
• "desktop_notifications": Whether to show desktop notifications for all messages sent to the channel.
• "audible_notifications": Whether to play a sound notification for all messages sent to the channel. [is mobile supposed to use this setting? isn't this controlled in mobile device-level notification settings?]
• "email_notifications": Whether to trigger an email notification for all messages sent to the channel.

Related issues:

• UI for channel muting/unmuting #347
• Offer subscribe/unsubscribe in channel action sheet #1224

[chrisbobbe]

This came up in beta feedback on CZO; noting it here because this issue covers muting and notifications:

In the new app, I don't see any way to unsubscribe / mute / notifications / add subscriber.

[gnprice]

The legacy app offers these first three settings:

• "is_muted": (tracked already in UI for channel muting/unmuting #347)
• "pin_to_top": Whether to pin the channel at the top of the channel list.
• "push_notifications": Whether to trigger a mobile push notification for all messages sent to the channel.

but not the others.

• "audible_notifications": Whether to play a sound notification for all messages sent to the channel. [is mobile supposed to use this setting? isn't this controlled in mobile device-level notification settings?]

Yeah, this sounds like it controls the behavior of desktop notifications.

[chrisbobbe]

When this is done we should update the Help Center doc. We removed instructions for the legacy app when preparing to launch the new app: zulip/zulip@6111949, zulip/zulip@73a523c