4.0.0 • Published 5 years ago

@terminus/ui-radio-group v4.0.0

Weekly downloads
22
License
MIT
Repository
github
Last release
5 years ago

CI/CD Status Codecov MIT License
NPM version Library size

Table of Contents

Installation

Packages that need to be installed

  • @angular/cdk
  • @angular/common
  • @angular/core
  • @angular/forms
  • @angular/platform-browser
  • @popperjs/core
  • @terminus/design-tokens
  • @terminus/fe-utilities
  • @terminus/ui-pipes
  • @terminus/ui-styles
  • @terminus/ui-utilities
  • @terminus/ui-radio-group
  • @terminus/ui-validation-messages
  • date-fns

Use the ng add command to quickly install all the needed dependencies:

ng add @terminus/ui-radio-group

Modules that need to be in NgModule

  • TsRadioGroupModule

CSS imports

In your top level stylesheet, add these imports:

@import '~@terminus/design-tokens/css/library-design-tokens.css';
@import '~@terminus/ui-styles/terminus-ui.css';

CSS resources

Load the needed font families by adding this link to the <head> of your application:

<link href="https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,400;0,500;0,700;1,400&display=swap" rel="stylesheet">

Usage

Pass in one or more <ts-radio-button> components to a <ts-radio-group>:

<ts-radio-group>
  <ts-radio-button value="1">One</ts-radio-button>
  <ts-radio-button value="2">Two</ts-radio-button>
  <ts-radio-button value="3">Three</ts-radio-button>
</ts-radio-group>

<!-- Or dynamically -->
<ts-radio-group>
  <ng-container *ngFor="let item of items">
    <ts-radio-button [value]="item.id">{{ item.title }}</ts-radio-button>
  </ng-container>
</ts-radio-group>

State control

State can be managed by ngModel, FormControl or formControlName:

<!-- FormGroup -->
<form [formGroup]="formGroupForm">
  <ts-radio-group [formControl]="formGroupForm.get('myGroup')">
    <ng-container *ngFor="let item of items;">
      <ts-radio-button [value]="item.id">{{ item.title }}</ts-radio-button>
    </ng-container>
  </ts-radio-group>
</form>

<!-- formGroupName -->
<form [formGroup]="formGroupNameForm">
  <ts-radio-group formControlName="myGroup">
    <ng-container *ngFor="let item of items;">
      <ts-radio-button [value]="item.id">{{ item.title }}</ts-radio-button>
    </ng-container>
  </ts-radio-group>
</form>

<!-- ngModel -->
<ts-radio-group [(ngModel)]="myModel">
  <ng-container *ngFor="let item of items;">
    <ts-radio-button [value]="item.id">{{ item.title }}</ts-radio-button>
  </ng-container>
</ts-radio-group>

Sub-labels

Consumers have full control over the content of each radio button. Extra content such as icons or sub-labels can be added directly in the template:

<ts-radio-group>
  <ts-radio-button value="1">
    One
    <small>My sublabel</small>
  </ts-radio-button>
  <ts-radio-button value="2">
    Two
    <small>My second sublabel</small>
  </ts-radio-button>
</ts-radio-group>

Validation

Validation messages

To enable validation messages the <ts-radio-group> must be using a control to manage state - and that control must be passed in to the validationFormControl input:

<ts-radio-group formControlName="myGroup" [validationFormControl]="formGroupForm.get('myGroup')">
  ...
</ts-radio-group>

No validation or hint

Disable the validation and hint section for the control

<ts-radio-group [noValidationOrHint]="true">
  ...
</ts-radio-group>

Fieldset

The wrapping fieldset supports a form ID and a legend value:

<ts-radio-group fieldsetId="myFormId" fieldsetLegend="My radio group!">
  ...
</ts-radio-group>

Events

The group and individual radio buttons both emit selection change events:

<ts-radio-group (selectionChange)="groupChange($event)">
  <ts-radio-button value="one" (selectionChange)="optionChange($event)">One</ts-radio-button>
</ts-radio-group>
EventDescriptionPayload
selectionChange (group)Fired when the radio group selection changesTsRadioChange
selectionChange (button)Fired when the radio button selection changesTsRadioChange

Required

The required DOM attribute must be added by setting the @Input at the group or button level:

<!-- This will set the required attribute on all child radio buttons -->
<ts-radio-group [isRequired]="true">
  <ts-radio-button value="one">One</ts-radio-button>
  <ts-radio-button value="two">Two</ts-radio-button>
</ts-radio-group>

<!-- Or, set at an individual level -->
<ts-radio-group>
  <ts-radio-button value="one" [isRequired]="true">One</ts-radio-button>
  <ts-radio-button value="two" [isRequired]="true">Two</ts-radio-button>
</ts-radio-group>

If using ReactiveForms, also set the FormControl as required:

myForm = this.formBuilder.group({
  myRadioGroup: [null, [Validators.required]],
});

Disabled

To disable the entire radio group, set isDisabled to true:

<!-- This will disable all child radio buttons -->
<ts-radio-group [isDisabled]="true">
  <ts-radio-button value="one">One</ts-radio-button>
  <ts-radio-button value="two">Two</ts-radio-button>
</ts-radio-group>

<!-- Or, disable at an individual level -->
<ts-radio-group>
  <ts-radio-button value="one" [isDisabled]="true">One</ts-radio-button>
  <ts-radio-button value="two" [isDisabled]="false">Two</ts-radio-button>
</ts-radio-group>

Manually set selection

A single option can be programmatically marked as selected:

<ts-radio-group>
  <ts-radio-button value="one">One</ts-radio-button>
  <ts-radio-button value="two" [isChecked]="true">Two</ts-radio-button>
</ts-radio-group>

Visual mode

Visual mode displays radio options as large clickable areas containing content.

This input defaults to none which outputs a standard radio group.

// All available visual format options:
export type TS_VISUAL_FORMATS
  = 'none'
  | 'visual'
  | 'visual-centered'
  | 'visual-small'
  | 'visual-small-centered'
  | 'segmented'
  | 'segmented-vertical'
;
<ts-radio-group visualFormat="visual-centered"></ts-radio-group>

Segmented mode

Segmented mode displays radio options much like 'tabs' or 'button groups'. This mode can display in horizontal or vertical layout:

<ts-radio-group visualFormat="segmented">...</ts-radio-group>
<ts-radio-group visualFormat="segmented-vertical">...</ts-radio-group>

Test Helpers

Some helpers are exposed to assist with testing. These are imported from @terminus/ui-radio-group/testing;

[source]

Function
getAllRadioGroupInstances
getRadioGroupInstance
getRadioGroupParentElement
selectStandardRadio
selectVisualRadio
tslib@angular-devkit/schematics@schematics/angular
@zalastax/nolb-_ter@infinitebrahmanuniverse/nolb-_ter@everything-registry/sub-chunk-905
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