Web remote does not work with newer versions of jQuery

Bug #1605009 reported by Gyuris Gellért on 2016-07-20
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Raoul Snyman
Raoul Snyman
Raoul Snyman

Bug Description

1) Ubuntu 16.04 (64)
2) OpenLP 2.4 - openlp 2.4-1 package
3) Activate remote plugin. Open default URL from settings (x.x.x.x:4316) Screenshot attached.

Related branches

Tim Bentley: Approve on 2016-12-15
Tomas Groth: Pending requested 2016-12-15
Tomas Groth (tomasgroth) wrote :

I can confirm this when running openlp as installed from ubuntus standard repos. When running from 2.4.x source code it works fine, so it looks like some of the remote-files was not bundled correctly for ubuntu.

Changed in openlp:
status: New → Confirmed

Hm, Is the "jquery.min.js" damaged in Ubuntu package? There are JS errors. See the differences in the attached screenshots.

Hm... jquery is a shared library:

/usr/share/openlp/openlp/plugins/remotes/html# ls -l
lrwxrwxrwx 1 root root 46 febr 15 19:06 images -> ../../../../../javascript/jquery-mobile/images
-rw-r--r-- 1 root root 8172 febr 13 15:42 index.html
lrwxrwxrwx 1 root root 42 febr 26 00:56 jquery.js -> ../../../../../javascript/jquery/jquery.js
lrwxrwxrwx 1 root root 46 febr 26 00:56 jquery.min.js -> ../../../../../javascript/jquery/jquery.min.js
lrwxrwxrwx 1 root root 57 febr 26 00:56 jquery.mobile.css -> ../../../../../javascript/jquery-mobile/jquery.mobile.css
lrwxrwxrwx 1 root root 56 febr 26 00:56 jquery.mobile.js -> ../../../../../javascript/jquery-mobile/jquery.mobile.js
lrwxrwxrwx 1 root root 61 febr 26 00:56 jquery.mobile.min.css -> ../../../../../javascript/jquery-mobile/jquery.mobile.min.css
lrwxrwxrwx 1 root root 60 febr 26 00:56 jquery.mobile.min.js -> ../../../../../javascript/jquery-mobile/jquery.mobile.min.js
-rw-r--r-- 1 root root 1680 febr 13 15:42 main.css
-rw-r--r-- 1 root root 1866 febr 13 15:42 main.html
-rw-r--r-- 1 root root 2096 febr 13 15:42 main.js
-rw-r--r-- 1 root root 1700 febr 13 15:42 openlp.css
-rw-r--r-- 1 root root 14039 febr 13 15:42 openlp.js
-rw-r--r-- 1 root root 1993 febr 13 15:42 stage.css
-rw-r--r-- 1 root root 2052 febr 13 15:42 stage.html
-rw-r--r-- 1 root root 6762 febr 13 15:42 stage.js

Raoul Snyman (raoul-snyman) wrote :

Yes, this is correct. On Debian (which is where Ubuntu gets its package from) the packaging requires that the system jQuery be used instead of the one bundled with OpenLP.

Those symlinks look a little weird though.

I replaced the "jquery.min.js" symlink (/<email address hidden>) with file from OpenLP source (/openlp/trunk/openlp/plugins/remotes/html/jquery.min.js), and remote plugin works well :-).

I think, this jquery version (1.11.3+dfsg-4) in not inappropriate for OpenLP.

Raoul Snyman (raoul-snyman) wrote :

Ah, so that's the actual problem. I'm renaming the bug report.

summary: - Remote ui is broken
+ Web remote does not work with newer versions of jQuery
Changed in openlp:
milestone: none → 2.4.3

Is this fixed in 2.4.3? It works for me.

After upgrading to Ubuntu 16.10 bug is still present (OpenLP 2.4.3 [2.4.3-1 or https://get.openlp.org/2.4.3/openlp_2.4.3-1_all.deb]).

I see that there are many deprecated jQuery features in /openlp/plugins/remotes/html/js/openlp.js.

What is your preferred way?
1. To bundle jQuery 1.7 jquery.min.js to Ubuntu package?
2. To update /openlp/plugins/remotes/html/js/openlp.js script changing deprecated jQuery features? Maybe I can work on it, if you prefer this way.

Raoul Snyman (raoul-snyman) wrote :

It is not fixed in 2.4.3. I have a fix on its way, please be patient.

OK. Thanks.

Tim Bentley (trb143) wrote :

Trunk is being redeveloped so this is not relevant.

@trb143, I tested https://get.openlp.org/2.4.4/openlp_2.4.4-1_all.deb but this bug is still present (Ubuntu 16.10).

Raoul Snyman (raoul-snyman) wrote :

Unfortunately it seems that my bugfix didn't make it in, it got lost along the way.

Luis Cano (luis-a-cano) wrote :

Just wanted to report that this is still an issue on OpenLP 2.4.4 on both Windows and MacOS versions of the app. Apparently this has to do with the remote plugin using jQuery version 1.12.x which no longer contains methods lie $(...).live() which were deprecated on jQuery version 1.7.x.

Hopefully this gets fixed soon as the remote plugin is something that we use a lot.


Luis Cano (luis-a-cano) wrote :

Here is a workaround for this issue for MacOS but the same can be done for the PCs (I just don't have the correct path at the time).

On MacOs go to the following directory:


in there replace the file jquery.js and jquery.min.js with the jQuery version 1.8.x (1.8.3 is what I tested it with); you can download it from here https://code.jquery.com/jquery/.

Make sure to rename the files match those names:
jquery-1.8.3.js -> jquery.js
jquery-1.8.3.min.js -> jquery.min.js

No need to restarting the app; things should just work.

Again, the same can be done in Windows/PC I just don't have the path of /plugins/remotes/html at the time of this posting. Hope this helps someone.

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