Okular gains some more JavaScript support

Andre Heinecke did some patches [1][2][3][4][5] over the last few weeks that finally got landed this week.

With it we support recalculation of some fields based on others. An example that calculates sum, average, product, minimum and maximum of three numbers can be found in this youtube video.



This code will be available for the Okular version that will ship with KDE Applications 18.04

Okular Form Field auto-updating (Work In Progress)

You can see it in https://www.youtube.com/watch?v=fCLFkpaW3Ug

As the description of the YouTube video says:

Form 14 updates from Form 13 values as defined by the PDF file.
There's a few bugs left:
* To make the page contents update i need to edit another form in the page of the form that is being auto updated
* The contents of the "editable" Form are not updated. (The form is actually not editable since it's readonly)

And also a pile of uncommited and unreviewed patches, and probably only works for very simple files like this one, but it's a start :)


Update: It works fine now and everything has been commited :) https://www.youtube.com/watch?v=S-zmHc3WUhs

You've got to love Free Software developers

So one fellow poppler developer tells me he his having problems with a new code he is developing and a PDF created by scribus and asks for help to see if it's a problem on scribus or on poppler code. I have a look at the spec and the pdf and reach the conclusion that it's their fault, so i go into the #scribus IRC channel speak there with their nice developers, i convince them that it's a bug, and 10 hours later the bug is fixed. This rocks :-)