Mailspring/internal_packages
Ben Gotow 343bb3163b feat(offline-mode, undo-redo): Tasks handle network errors better and retry, undo/redo based on tasks
Summary:
This diff does a couple things:

- Undo redo with a new undo/redo store that maintains it's own queue of undo/redo tasks. This queue is separate from the TaskQueue because not all tasks should be considered for undo history! Right now just the AddRemoveTagsTask is undoable.

- NylasAPI.makeRequest now returns a promise which resolves with the result or rejects with an error. For things that still need them, there's still `success` and `error` callbacks. I also added `started:(req) ->` which allows you to get the underlying request.

- Aborting a NylasAPI request now makes it call it's error callback / promise reject.

- You can now run code after perform local has completed using this syntax:

```
    task = new AddRemoveTagsTask(focused, ['archive'], ['inbox'])
    task.waitForPerformLocal().then ->
      Actions.setFocus(collection: 'thread', item: nextFocus)
      Actions.setCursorPosition(collection: 'thread', item: nextKeyboard)
    Actions.queueTask(task)
```

- In specs, you can now use `advanceClock` to get through a Promise.then/catch/finally. Turns out it was using something low level and not using setTimeout(0).

- The TaskQueue uses promises better and defers a lot of the complexity around queueState for performLocal/performRemote to a task subclass called APITask. APITask implements "perform" and breaks it into "performLocal" and "performRemote".

- All tasks either resolve or reject. They're always removed from the queue, unless they resolve with Task.Status.Retry, which means they internally did a .catch (err) => Promise.resolve(Task.Status.Retry) and they want to be run again later.

- API tasks retry until they succeed or receive a NylasAPI.PermanentErrorCode (400,404,500), in which case they revert and finish.

- The AddRemoveTags Task can now take more than one thread! This is super cool because you can undo/redo a bulk action and also because we'll probably have a bulk tag modification API endpoint soon.

Getting undo / redo working revealed that the thread versioning system we built isn't working because the server was incrementing things by more than 1 at a time. Now we count the number of unresolved "optimistic" changes we've made to a given model, and only accept the server's version of it once the number of optimistic changes is back at zero.

Known Issues:

- AddRemoveTagsTasks aren't dependent on each other, so if you (undo/redo x lots) and then come back online, all the tasks try to add / remove all the tags at the same time. To fix this we can either allow the tasks to be merged together into a minimal set or make them block on each other.

- When Offline, you still get errors in the console for GET requests. Need to catch these and display an offline status bar.

- The metadata tasks haven't been updated yet to the new API. Wanted to get it reviewed first!

Test Plan: All the tests still pass!

Reviewers: evan

Reviewed By: evan

Differential Revision: https://phab.nylas.com/D1694
2015-07-07 13:38:53 -04:00
..
account-sidebar fix(counts): Centralize handling of unread count / draft count 2015-06-26 16:02:08 -07:00
attachments fix(attachment-css): Tiny style tweaks 2015-06-29 17:25:00 -07:00
calendar-bar
composer feat(offline-mode, undo-redo): Tasks handle network errors better and retry, undo/redo based on tasks 2015-07-07 13:38:53 -04:00
developer-bar feat(offline-mode, undo-redo): Tasks handle network errors better and retry, undo/redo based on tasks 2015-07-07 13:38:53 -04:00
file-list feat(attachment): improved downloading and draggable images 2015-06-15 18:48:17 -07:00
inbox-contact-elements
message-list feat(offline-mode, undo-redo): Tasks handle network errors better and retry, undo/redo based on tasks 2015-07-07 13:38:53 -04:00
message-templates feat(salesforce): new UI for Salesforce 2015-06-17 20:40:08 -07:00
mode-switch fix(assets): New toolbar icons, shadows to achieve less heavy edges on messages 2015-06-26 10:38:07 -07:00
notification-mailto
notification-update-available
notifications fix(nylas-api): Globally handle 401s and notify user they need to sign in 2015-06-17 12:29:49 -07:00
onboarding feat(salesforce): new UI for Salesforce 2015-06-17 20:40:08 -07:00
search-bar fix(search): remove red search x 2015-06-18 09:43:18 -07:00
settings fix(getting-started): New menu item, sample package for devs 2015-07-06 14:23:51 -04:00
sidebar-fullcontact feat(salesforce): new UI for Salesforce 2015-06-17 20:40:08 -07:00
sidebar-inbox-internal Adding ATag component which prevents <a> tags from taking over edgehill when clicked. 2015-06-25 10:28:31 -07:00
thread-list feat(offline-mode, undo-redo): Tasks handle network errors better and retry, undo/redo based on tasks 2015-07-07 13:38:53 -04:00
today fix(nylas-api): Globally handle 401s and notify user they need to sign in 2015-06-17 12:29:49 -07:00
tooltip feat(theming): Definitely not hacker mode. I don't know what you're talking about. 2015-06-05 11:40:44 -07:00
ui-dark feat(theming): Definitely not hacker mode. I don't know what you're talking about. 2015-06-05 11:40:44 -07:00
ui-light
unread-notifications fix(thread-list): Narrow mode, and new selection rules for three-pane 2015-06-11 18:00:40 -07:00