extensions.md

Extensions

Extensions are something like a plugins in slicky which you can use to automatically extend the base functionality.

Writing extension

To write an extension you need to extend AbstractExtension class from slicky and add your own methods.

import {AbstractExtension, FilterInterface, DirectiveDefinition, DirectiveOptions} from '@slicky/core';
import {Container, ProviderOptions} from '@slicky/di';
import {ClassType} from '@slicky/lang';

class MyExtension extends AbstractExtension
{
	
	
	public getServices(): Array<ProviderOptions>
	{
		return [];		// Register own global services into dependency inject container
	}
	
	
	public getFilters(): Array<ClassType<FilterInterface>>
	{
		return [];		// Add custom global template filters
	}
	
	
	public doUpdateDirectiveMetadata(directiveType: ClassType<any>, metadata: DirectiveDefinition, options: DirectiveOptions): void
	{
		// method is called when metadata is being loaded for some directive
		// you can add your custom metadata or update existing
	}
	
	
	public doUpdateDirectiveServices(directiveType: ClassType<any>, metadata: DirectiveDefinition, services: Array<ProviderOptions>): void
	{
		// method is called when new directive instance is being created
		// you can add custom add custom DI providers or services
	}
	
	
	public doInitComponentContainer(container: Container, metadata: DirectiveDefinition, component: any): void
	{
		// method is called when the DI container is being forked for new component
		// you can register custom services per component
	}
	
}