Export extension to powerpoint

[ErikWetterberg]

Hi,

I'm struggling to make my extension work when exporting a story to powerpoint.The extension works well in a sheet or a story, but when exporting the story to powerpoint I get the title (not actually rendered by the extension) but not the actual chart.

I have follwed the instructions here and set up the 'finished rendering notification:

return qlik.Promise.resolve();

but that did not solve the problem.

I'm pretty sure that this has worked with previous Qlik Sense versions, but now we are at Qlik Sense June September 2017, and it seems broken.

Has anybody got any suggestions? How can I troubleshoot this?

Erik

Message was edited by: Erik Wetterberg Corrected June -> September, since that is actually the version we are using.

[ErikWetterberg]

I have now managed to get this working for all extensions but one. Unlike the other extensions, the last one uses the Table API. Works well in analysis, and in story mode, but when we try to do a Powerpoint export, creating the table fails with error:

TypeError: b.getLayout is not a function

Erik

[Aiham_Azmeh]

Hi erik.wetterberg‌,

Can you help us by sharing a snippet so we can fix the issue? Have you filed a bug?

thank you a lot for the explanation!

[ErikWetterberg]

Hi,

Just verified that the bug is still there in September 2017 patch 1. Will try to make an example extension, shouldn't be that difficult.

Erik

[ErikWetterberg]

Hi,

Here is a small extensions that reproduces the problem. Works in analysis and snapshot, but not in PowerPoint export.

Haven't found any way to debug this (is there one??), so I simply added a try/catch and add the error message to $element.

Erik

[ErikWetterberg · Accepted solution]

Just a quick followup on this, since the problem is now solved for our extensions, and others may run into the same problem. When I get a little more time I'll write this down in a bit more detail.

The problem was that the extension worked well in analyse mode and in a story, but when exporting to PowerPoint (haven't tested PDF) we just got an empty space.

The solution had three parts:

1) turn off animations. For highcharts, the charting library we are using, this turned out to be two flags you needed to turn off

2) make sure to return a Promise, and that the promise does not resolve until rendering is complete (I actually needed a delay of 0.5 second even after Highcharts reported rendering complete

3) andI'm afraid a least in Sepmtember 2017 you cannot use the Table API, because it does not work in export to PDF scenario.

Hope this helps

Erik Wetterberg

[rav]

Hi Erik!

The extension that you provide miss the correct support property in the extension js file.

Try replacing :

snapshot: {

canTakeSnapshot: true

},

with:

support: {

snapshot: true,

export: true,

exportData: true

}

and it should work just fine.

[ErikWetterberg]

Hi,

Sorry, I just made a quick extension using the table template, which has the old syntax. Still works, though. The real extension has the new syntax:

support: {

                snapshot: true,

                export: true,

                exportData: true

            },

I've tried modifying the extension example and rerun the test, in Qlik Sense Desktop September 2017 Patch 1, and still get the same result.

- works in analysis mode (yes it's very ugly)

- works in store

- break in story export to PDF:

Erik Wetterberg

[ErikWetterberg]

BTW, you can also reproduce this by simply exporting the visualization to PowerPoint or PDF straight from the sheet.

Erik