Plug-In: Column Title Alignment

Presents a form for selecting the alignment to use for column titles. Options are: Left, Center, Right, and Clear All Alignments

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Column Title Alignment
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/*{
	"type": "action",
	"targets": ["omnioutliner"],
	"author": "Otto Automator",
	"identifier": "com.omni-automation.oo.column-title-alignment",
	"version": "1.0",
	"description": "Presents a form for selecting the alignment to use for column titles. Options are: Left, Center, Right, and Clear All Alignments",
	"label": "Title Alignment",
	"shortLabel": "Titles",
	"paletteLabel": "Titles",
	"image": "align.horizontal.center"
}*/
(() => {
	const action = new PlugIn.Action(async function(selection, sender){
		try {
			try {document.name} catch(err){
				throw {
					name:"Missing Resource", 
					message:"No outline document is open."
				}
			}

			inputForm = new Form()
		
			alignmentOptions = ["Left", "Center", "Right", "Clear"]
			alignmentMenu = new Form.Field.Option(
				"alignmentValue", 
				"Align", 
				[0, 1, 2, 3],
				alignmentOptions, 
				1
			)
			
			inputForm.addField(alignmentMenu)
		
			inputForm.validate = function(formObject){
				return true
			}
		
			formPrompt = "Title Alignment:"
			formButtom = "Apply"

			formObject = await inputForm.show(formPrompt, formButtom)
			
			alignmentIndex = formObject.values["alignmentValue"]
			
			switch(alignmentIndex) {
				case 0:
					var alignmentValue = TextAlignment.Left
					break;
				case 1:
					var alignmentValue = TextAlignment.Center
					break;
				case 2:
					var alignmentValue = TextAlignment.Right
					break;
				case 3:
					var alignmentValue = null
			}
			
			columnTitleStyle.set(Style.Attribute.ParagraphAlignment, alignmentValue)
		}
		catch(err){
			if(!err.causedByUserCancelling){
				console.error(err.name, err.message)
				new Alert(err.name, err.message).show()
			}	
		}
	});

	action.validate = function(selection, sender){
		return true
	};
	
	return action;
})();