@josiahayres/react-hooks

react-hooks is a collection of React Hooks, written in Typescript.

Installation

Use the package manager npm to install @josiahayres/react-hooks.

npm install @josiahayres/react-hooks

Hook: useFormSectionControl()

When you have forms with multiple sections, this hook helps by enforcing the following rules:

1. Only one section can be active at a time.
2. Optionally, can only edit one section at a time.
3. Each section

You are responsible for ensuring each Section must control

• validation of each section, when to let user go to next section.
• Section State: Active vs Summary & what is displaye at each point
• Data collection from each section & what to do with the data once submitted.
• Showing user submit button

import { useFormSectionsControl } from 'josiahayres/react-hooks';

// Create a Union type with all valid section IDs
type ValidFormSectionIds =
  | 'sectionOne'
  | 'sectionTwo'
  | 'sectionThree'
  | 'sectionFour';

// This form uses three sections.
const sectionIds = ['sectionOne', 'sectionTwo', 'sectionThree'];

// Initialize hook in component
const formSectionsControl =
  useFormSectionControl<ValidFormSectionIds>(sectionIds);

formSectionControl

This is what the hook returns. Is a tuple with the following:

const [store, dispatch, canEditSection] = formSectionsControl;

formSectionControl.store

Also accessable as formSectionsControl[0].

// Store object can be destructured like this
const { activeSectionId, haveVisitedSummary, formSections, options } = store;

Store	Notes
activeSectionId	One of provided formSections or null
haveVisitedSummary	True once dispatch({type:"gotToNextSection"}) called when activeSectionId is last id in provided list
formSections	Same as provided list of formSections, see section below for more
options	Same as provided options object, see section below for more

store.options

This is the options object as provided to the hook on setup. All options in this object are optional.

Key	When key has value:	Notes
initialActiveSectionId	null	haveVisitedSummary=true, activeSectionId=null
initialActiveSectionId	"sectionOne"	haveVisitedSummary=false, activeSectionId="sectionOne"
initialActiveSectionId	Not provided	haveVisitedSummary=false, activeSectionId=first section in provided list

formSectionControl.dispatch

Also accessable as formSectionsControl[1]({type:""}).

Action Type	Action Parameters	Notes
reset	None	Will reset internal hook state to value at initial render
goToNextSection	None	Will step through each section in list provided, until no more sections are active.
goTo	sectionId	Sets a specific sectionId active

Examples:

// Typescript will help dispatching the correct actions
dispatch({ type: 'goToNextSection' });
dispatch({ type: 'goTo', sectionId: 'sectionTwo' });
dispatch({ type: 'reset' });

formSectionControl.canEditSection

Function takes a sectionId and returns if that sectionId can be edited. These checks are used internally, in this order.

• When activeSectionId === sectionId return false
• When activeSectionId is null return true
• When haveVisitedSummary AND activeSectionId NOT null return false
• When position of sectionId is before position of activeSectionId return true
• When position of sectionId is equal to or after activeSectionId return true

const sectionOneEditable = canEditSection('sectionOne');

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT