Presentation support

[leonklingele-work]

Missing

• Support for multiple presentations
• Presentation control panel (switch between presentations)
• Presentation control panel (page number selection)
• ODF presentation support We no longer want this for the first version
• Resume support, i.e. loading the presentation for new participants which joined after the P was uploaded TODO: Sometimes it doesn't work, likely the case when the peer connection is not ready yet (?)
• Fix styling issues
• Load Ps inside Iframe as a security precaution

Testing the PR

• Make sure to use a version of Nextcloud server which includes this commit: https://github.com/nextcloud/server/commit/66a5a45c503269699666df61c605d67f3c72c7c0.patch, alternatively apply the patch manually

[leonklingele-work]

This adds support for #32

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@7d8b5f0). Click here to learn what that means.
The diff coverage is 0%.

@@           Coverage Diff            @@
##             master    #387   +/-   ##
========================================
  Coverage          ?   10.1%           
  Complexity        ?     421           
========================================
  Files             ?      26           
  Lines             ?    1999           
  Branches          ?       0           
========================================
  Hits              ?     202           
  Misses            ?    1797           
  Partials          ?       0

Impacted Files	Coverage Δ	Complexity Δ
appinfo/routes.php	0% <0%> (ø)	0 <0> (?)

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[nickvergessen]

I get the following error when clicking on the "upload" button.

Uncaught TypeError: propertyName.match is not a function
    at dav.Client.parseClarkNotation (client.js:442)
    at dav.Client.propFind (client.js:74)
    at Client.getFolderContents (client.js:436)
    at Object._fillFilePicker (oc-dialogs.js:790)
    at HTMLDocument.<anonymous> (oc-dialogs.js:217)
    at j (jquery.js:3099)
    at Object.add [as done] (jquery.js:3145)
    at a.fn.init.n.fn.ready (jquery.js:3378)
    at Object.<anonymous> (oc-dialogs.js:210)
    at Object.<anonymous> (jquery.js:3256)

Another thing: can you not commit the 3rdparty stuff and instead have it done via make?
Like a lot other apps already do it. This would keep the PR and code a bit more maintainable.

[leonklingele-work]

I get the following error when clicking on the "upload" button.

Sorry, I forgot to mention you need to apply this patch: owncloud/davclient.js#31

can you not commit the 3rdparty stuff and instead have it done via make

Other 3rd party stuff is currently included as well, see https://github.com/nextcloud/spreed/tree/master/js/vendor

[nickvergessen]

Due to the many conflicts and the stale progress im closing this.