Add filter buttons to core/custom classes in the Search Help dialog

[dalexeev]

Describe the project you are working on

A game.

Describe the problem or limitation you are having in your project

Godot 4.0-dev introduced a script documentation feature. But all your scripts in the project get into the Search Help dialog. When you're looking for engine documentation, your own scripts only get in the way. When you want to look at the structure of a project, you might want to hide the core classes.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

Add the following buttons to the dialog:

• Show Engine Classes
• Show Named Classes
• Show Unnamed Classes

These buttons work like filters. When a class category button is pressed, the corresponding classes are shown in the list. When released, these classes are hidden.

In tree view, the parent classes of all selected categories are displayed whether they belong to the selected categories or not (to show the hierarchy). Such classes can be highlighted in a different color.

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

Also, it would be nice to add a similar filter/setting for the help pages:

If this enhancement will not be used often, can it be worked around with a few lines of script?

As far as I know, this cannot be done with an add-on.

Is there a reason why this should be core and not an add-on in the asset library?

As far as I know, this cannot be done with an add-on.

[dalexeev]

Another filter idea: show/hide classes that are available only in editor builds (EditorScriptPicker, FileSystemDock, VisualScriptNode, etc).