Playing videos from offline storage

[jwold]

Feature description

As a user, I should be able to play video back from offline storage.

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Acceptance criteria

1. For playing itself the experience should be the same as for the online mode.

Notes

In the application its quite involved in implementation, but as a process for user its straightforward.

Implementation brief

QA testing instructions

Demo

Changelog entry

[dero]

@jwold This is now implemented and merged to develop.

• Videos are stored in IndexedDB in two separate object stores: meta and data.
• The meta store holds meta information about the video and the download progress.
• The data store holds the actual video data chunks.

Relevant module: https://github.com/xwp/web-dev-media/blob/develop/src/js/modules/IDBConnection.module.js

[kkalarickal]

Scenario:
Given the end user has downloaded videos for offline storage
When she goes offline by cutting the internet connection
Then she is able to click the Play button built into the video player
And view the video along with all its features (subtitle, start, pause, stop)

Status:

Verified this on KINO Staging Site via Google Chrome
PASSED basic start/stop/pause actions in offline mode and after breaking network connection
FAILED fast forward action in offline mode (#93)

Also file #94 for related issue with incorrect status during physical network connection breakage.

This ticket is NOT verified in QA for phase 1 of the application.

[kkalarickal]

After verifying #93 the basic functionality on this ticket is verified.