On the incorrect loading of the official "htmldialog-examples"

Developers Ruby API
3

  • SketchUp loads a Ruby file at startup if it is in the Plugins folder (C:\Users\<user>\Roaming\SketchUp\SketchUp 2018\Plugins or Library/Application Support/SketchUp 2015/SketchUp/Plugins). The content of the Ruby file is evaluated immediately, so code that is not wrapped in a method and registered in the UI runs at startup.
    Knowing this, you probably have to copy the contents of the src folder into the Plugins folder.

  • Alternatively you can side-load scripts from any location if their requirements are specified relative to their loader file (not relative to the Plugins folder). This is the case for these htmldialog-examples.

    load "/path/to/downloads/src/tutorial.rb"

  • Check also out the sketchup-bridge project, which provides a different, unified approach to communicating between Ruby and the dialog in both directions.
    You can test-drive it with this tutorial extension. If you like it, you can clone the Github project. There is also a sample can be copied into your Plugins folder (before making your own project, rename AuthorName and SampleExtension to your personal namespace).