@ionic/core
Version:
Base components for Ionic
236 lines (231 loc) • 11.5 kB
JavaScript
/*!
* (C) Ionic http://ionicframework.com - MIT License
*/
import { proxyCustomElement, HTMLElement, createEvent, h, Host } from '@stencil/core/internal/client';
import { e as renderHiddenInput } from './helpers.js';
import { b as getIonMode } from './ionic-global.js';
const radioGroupIosCss = "ion-radio-group{vertical-align:top}.radio-group-wrapper{display:inline}.radio-group-top{line-height:1.5}.radio-group-top .error-text{display:none;color:var(--ion-color-danger, #c5000f)}.radio-group-top .helper-text{display:block;color:var(--ion-color-step-700, var(--ion-text-color-step-300, #4d4d4d))}.ion-touched.ion-invalid .radio-group-top .error-text{display:block}.ion-touched.ion-invalid .radio-group-top .helper-text{display:none}ion-list .radio-group-top{-webkit-padding-start:16px;padding-inline-start:16px;-webkit-padding-end:16px;padding-inline-end:16px}";
const IonRadioGroupIosStyle0 = radioGroupIosCss;
const radioGroupMdCss = "ion-radio-group{vertical-align:top}.radio-group-wrapper{display:inline}.radio-group-top{line-height:1.5}.radio-group-top .error-text{display:none;color:var(--ion-color-danger, #c5000f)}.radio-group-top .helper-text{display:block;color:var(--ion-color-step-700, var(--ion-text-color-step-300, #4d4d4d))}.ion-touched.ion-invalid .radio-group-top .error-text{display:block}.ion-touched.ion-invalid .radio-group-top .helper-text{display:none}ion-list .radio-group-top{-webkit-padding-start:16px;padding-inline-start:16px;-webkit-padding-end:16px;padding-inline-end:16px}";
const IonRadioGroupMdStyle0 = radioGroupMdCss;
const RadioGroup = /*@__PURE__*/ proxyCustomElement(class RadioGroup extends HTMLElement {
constructor() {
super();
this.__registerHost();
this.ionChange = createEvent(this, "ionChange", 7);
this.ionValueChange = createEvent(this, "ionValueChange", 7);
this.inputId = `ion-rg-${radioGroupIds++}`;
this.helperTextId = `${this.inputId}-helper-text`;
this.errorTextId = `${this.inputId}-error-text`;
this.labelId = `${this.inputId}-lbl`;
this.setRadioTabindex = (value) => {
const radios = this.getRadios();
// Get the first radio that is not disabled and the checked one
const first = radios.find((radio) => !radio.disabled);
const checked = radios.find((radio) => radio.value === value && !radio.disabled);
if (!first && !checked) {
return;
}
// If an enabled checked radio exists, set it to be the focusable radio
// otherwise we default to focus the first radio
const focusable = checked || first;
for (const radio of radios) {
const tabindex = radio === focusable ? 0 : -1;
radio.setButtonTabindex(tabindex);
}
};
this.onClick = (ev) => {
ev.preventDefault();
/**
* The Radio Group component mandates that only one radio button
* within the group can be selected at any given time. Since `ion-radio`
* is a shadow DOM component, it cannot natively perform this behavior
* using the `name` attribute.
*/
const selectedRadio = ev.target && ev.target.closest('ion-radio');
/**
* Our current disabled prop definition causes Stencil to mark it
* as optional. While this is not desired, fixing this behavior
* in Stencil is a significant breaking change, so this effort is
* being de-risked in STENCIL-917. Until then, we compromise
* here by checking for falsy `disabled` values instead of strictly
* checking `disabled === false`.
*/
if (selectedRadio && !selectedRadio.disabled) {
const currentValue = this.value;
const newValue = selectedRadio.value;
if (newValue !== currentValue) {
this.value = newValue;
this.emitValueChange(ev);
}
else if (this.allowEmptySelection) {
this.value = undefined;
this.emitValueChange(ev);
}
}
};
this.allowEmptySelection = false;
this.compareWith = undefined;
this.name = this.inputId;
this.value = undefined;
this.helperText = undefined;
this.errorText = undefined;
}
valueChanged(value) {
this.setRadioTabindex(value);
this.ionValueChange.emit({ value });
}
componentDidLoad() {
/**
* There's an issue when assigning a value to the radio group
* within the Angular primary content (rendering within the
* app component template). When the template is isolated to a route,
* the value is assigned correctly.
* To address this issue, we need to ensure that the watcher is
* called after the component has finished loading,
* allowing the emit to be dispatched correctly.
*/
this.valueChanged(this.value);
}
async connectedCallback() {
// Get the list header if it exists and set the id
// this is used to set aria-labelledby
const header = this.el.querySelector('ion-list-header') || this.el.querySelector('ion-item-divider');
if (header) {
const label = (this.label = header.querySelector('ion-label'));
if (label) {
this.labelId = label.id = this.name + '-lbl';
}
}
}
getRadios() {
return Array.from(this.el.querySelectorAll('ion-radio'));
}
/**
* Emits an `ionChange` event.
*
* This API should be called for user committed changes.
* This API should not be used for external value changes.
*/
emitValueChange(event) {
const { value } = this;
this.ionChange.emit({ value, event });
}
onKeydown(ev) {
// We don't want the value to automatically change/emit when the radio group is part of a select interface
// as this will cause the interface to close when navigating through the radio group options
const inSelectInterface = !!this.el.closest('ion-select-popover') || !!this.el.closest('ion-select-modal');
if (ev.target && !this.el.contains(ev.target)) {
return;
}
// Get all radios inside of the radio group and then
// filter out disabled radios since we need to skip those
const radios = this.getRadios().filter((radio) => !radio.disabled);
// Only move the radio if the current focus is in the radio group
if (ev.target && radios.includes(ev.target)) {
const index = radios.findIndex((radio) => radio === ev.target);
const current = radios[index];
let next;
// If hitting arrow down or arrow right, move to the next radio
// If we're on the last radio, move to the first radio
if (['ArrowDown', 'ArrowRight'].includes(ev.key)) {
next = index === radios.length - 1 ? radios[0] : radios[index + 1];
}
// If hitting arrow up or arrow left, move to the previous radio
// If we're on the first radio, move to the last radio
if (['ArrowUp', 'ArrowLeft'].includes(ev.key)) {
next = index === 0 ? radios[radios.length - 1] : radios[index - 1];
}
if (next && radios.includes(next)) {
next.setFocus(ev);
if (!inSelectInterface) {
this.value = next.value;
this.emitValueChange(ev);
}
}
// Update the radio group value when a user presses the
// space bar on top of a selected radio
if ([' '].includes(ev.key)) {
const previousValue = this.value;
this.value = this.allowEmptySelection && this.value !== undefined ? undefined : current.value;
if (previousValue !== this.value || this.allowEmptySelection) {
/**
* Value change should only be emitted if the value is different,
* such as selecting a new radio with the space bar or if
* the radio group allows for empty selection and the user
* is deselecting a checked radio.
*/
this.emitValueChange(ev);
}
// Prevent browsers from jumping
// to the bottom of the screen
ev.preventDefault();
}
}
}
/** @internal */
async setFocus() {
const radioToFocus = this.getRadios().find((r) => r.tabIndex !== -1);
radioToFocus === null || radioToFocus === void 0 ? void 0 : radioToFocus.setFocus();
}
/**
* Renders the helper text or error text values
*/
renderHintText() {
const { helperText, errorText, helperTextId, errorTextId } = this;
const hasHintText = !!helperText || !!errorText;
if (!hasHintText) {
return;
}
return (h("div", { class: "radio-group-top" }, h("div", { id: helperTextId, class: "helper-text" }, helperText), h("div", { id: errorTextId, class: "error-text" }, errorText)));
}
getHintTextID() {
const { el, helperText, errorText, helperTextId, errorTextId } = this;
if (el.classList.contains('ion-touched') && el.classList.contains('ion-invalid') && errorText) {
return errorTextId;
}
if (helperText) {
return helperTextId;
}
return undefined;
}
render() {
const { label, labelId, el, name, value } = this;
const mode = getIonMode(this);
renderHiddenInput(true, el, name, value, false);
return (h(Host, { key: 'cac92777297029d7fd1b6af264d92850e35dfbba', role: "radiogroup", "aria-labelledby": label ? labelId : null, "aria-describedby": this.getHintTextID(), "aria-invalid": this.getHintTextID() === this.errorTextId, onClick: this.onClick, class: mode }, this.renderHintText(), h("div", { key: '6b5c634dba30d54eedc031b077863f3d6a9d9e9b', class: "radio-group-wrapper" }, h("slot", { key: '443edb3ff6f4c59d4c4324c8a19f2d6def47a322' }))));
}
get el() { return this; }
static get watchers() { return {
"value": ["valueChanged"]
}; }
static get style() { return {
ios: IonRadioGroupIosStyle0,
md: IonRadioGroupMdStyle0
}; }
}, [36, "ion-radio-group", {
"allowEmptySelection": [4, "allow-empty-selection"],
"compareWith": [1, "compare-with"],
"name": [1],
"value": [1032],
"helperText": [1, "helper-text"],
"errorText": [1, "error-text"],
"setFocus": [64]
}, [[4, "keydown", "onKeydown"]], {
"value": ["valueChanged"]
}]);
let radioGroupIds = 0;
function defineCustomElement() {
if (typeof customElements === "undefined") {
return;
}
const components = ["ion-radio-group"];
components.forEach(tagName => { switch (tagName) {
case "ion-radio-group":
if (!customElements.get(tagName)) {
customElements.define(tagName, RadioGroup);
}
break;
} });
}
export { RadioGroup as R, defineCustomElement as d };