[6.1] Expand useGlobal to also use plugin parameters

[Ruud68]

Pull Request for Issue # -.

Summary of Changes

In form xml files you can add useglobal="true", this will then extend the field to show the value for the field in the matching component options.

This PR extends the useglobal to not only use the component options but also a plugins options.

This will create the possibility to have the same functionality it had but then for (global) plugin parameters.

This is a POC on the 'text' field to see if there is interest in this change, if so I can further extend it to the other fields that have the useglobal functionality:

• MailtemplateLayoutField
• ComponentLayoutField
• ListField
• NumberField
• PluginsField

Testing Instructions

on a formfield you can now have the following useglobal settings:

• useglobal="true": this will take the configured field value from the component
• useglobal="plg_system_xyz": this will take the configured value from the plugin with type 'system' and name 'xyz'

Actual result BEFORE applying this Pull Request

The text field would show empty

Expected result AFTER applying this Pull Request

The textfield will show 'Use Global (abc)' where abc is the value of the field in the plugin configuration

Link to documentations

Please select:

• Documentation link for docs.joomla.org: https://manual.joomla.org/docs/general-concepts/forms-fields/standard-fields/text/

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[laoneo]

Nice one. For consistency, I would also support the component name and then deprecate the true attribute for useglobal. Like that we can get rid of the global input parameter.

[Ruud68]

Hi @laoneo Thanks, glad you like it. Already have this in place for my plugins via overrides: works like a charm :)

I will make a change so you can use component name or plugin name, with a fallback of 'true' to the component name from the input parameter.

If this is something that would get integrated i can also do the other fields that now have 'useglobal' support.
Not to keen on 'wasting' time on this if it doesn't get integrated in the end, so just checking in advance :)

[laoneo]

Sure. We can also get this RTC and then expand from there.

[Ruud68]

You can now use component name e.g. 'com_content', plugin name or 'true' as B/C fallback

[laoneo]

Cool, I would replace one occurrence in core for plugins and one for a component. Like that it can be tested relatively easy.

[Ruud68]

For core a replacement can be made, but not for plugins as that is a new feature and not used in core.
I can make test instructions where the tester than can add themselves a field to a form and set the different useglobal values.

As a side note: why is the CI Joomla Check PHP code style failing on the use of a '' on e.g. \str_starts_with, but it is allowing it on \is_null?