Set a user-defined title to a custom R HTML visual

[Anonymous]

Hello,

  I'm using pbiviz to do some custom R HTML visuals. With capabilities.json, I'm able to control the dataset(s) exported from Power BI to the the R script (their names and their display names). But is it possible to export say a string to use as a title of the graphic? (for example if I use ggplot with ggtitle followed by ggploty). I mean a string that the user is able to choose.

[Anonymous · Accepted solution]

I managed to add a text input for setting a title and a dropdown list for setting a chart theme:

This is achieved by modifying two files: the file capabilities.json and the file src/settings.ts in the folder created by pbiviz.

Here is the file capabilities.json. I modified the objects node:

And here is the TypeScript file src/settings.ts:

Then, in the file script.r, the title set by the user and the theme he chooses are named ggsettings_ChartTitle and ggsettings_ChartTheme respectively. But they won't be available at the first creation of the chart, so we have to check for their existence in the R script. Here is the full script I used: