@ionic/core
Version:
Base components for Ionic
191 lines (186 loc) • 7.42 kB
JavaScript
/*!
* (C) Ionic http://ionicframework.com - MIT License
*/
import { proxyCustomElement, HTMLElement, createEvent, h, Host } from '@stencil/core/internal/client';
const tabsCss = ":host{left:0;right:0;top:0;bottom:0;display:-ms-flexbox;display:flex;position:absolute;-ms-flex-direction:column;flex-direction:column;width:100%;height:100%;contain:layout size style;z-index:0}.tabs-inner{position:relative;-ms-flex:1;flex:1;contain:layout size style}";
const IonTabsStyle0 = tabsCss;
const Tabs = /*@__PURE__*/ proxyCustomElement(class Tabs extends HTMLElement {
constructor() {
super();
this.__registerHost();
this.__attachShadow();
this.ionNavWillLoad = createEvent(this, "ionNavWillLoad", 7);
this.ionTabsWillChange = createEvent(this, "ionTabsWillChange", 3);
this.ionTabsDidChange = createEvent(this, "ionTabsDidChange", 3);
this.transitioning = false;
this.onTabClicked = (ev) => {
const { href, tab } = ev.detail;
if (this.useRouter && href !== undefined) {
const router = document.querySelector('ion-router');
if (router) {
router.push(href);
}
}
else {
this.select(tab);
}
};
this.selectedTab = undefined;
this.useRouter = false;
}
async componentWillLoad() {
if (!this.useRouter) {
/**
* JavaScript and StencilJS use `ion-router`, while
* the other frameworks use `ion-router-outlet`.
*
* If either component is present then tabs will not use
* a basic tab-based navigation. It will use the history
* stack or URL updates associated with the router.
*/
this.useRouter =
(!!this.el.querySelector('ion-router-outlet') || !!document.querySelector('ion-router')) &&
!this.el.closest('[no-router]');
}
if (!this.useRouter) {
const tabs = this.tabs;
if (tabs.length > 0) {
await this.select(tabs[0]);
}
}
this.ionNavWillLoad.emit();
}
componentWillRender() {
const tabBar = this.el.querySelector('ion-tab-bar');
if (tabBar) {
const tab = this.selectedTab ? this.selectedTab.tab : undefined;
tabBar.selectedTab = tab;
}
}
/**
* Select a tab by the value of its `tab` property or an element reference. This method is only available for vanilla JavaScript projects. The Angular, React, and Vue implementations of tabs are coupled to each framework's router.
*
* @param tab The tab instance to select. If passed a string, it should be the value of the tab's `tab` property.
*/
async select(tab) {
const selectedTab = getTab(this.tabs, tab);
if (!this.shouldSwitch(selectedTab)) {
return false;
}
await this.setActive(selectedTab);
await this.notifyRouter();
this.tabSwitch();
return true;
}
/**
* Get a specific tab by the value of its `tab` property or an element reference. This method is only available for vanilla JavaScript projects. The Angular, React, and Vue implementations of tabs are coupled to each framework's router.
*
* @param tab The tab instance to select. If passed a string, it should be the value of the tab's `tab` property.
*/
async getTab(tab) {
return getTab(this.tabs, tab);
}
/**
* Get the currently selected tab. This method is only available for vanilla JavaScript projects. The Angular, React, and Vue implementations of tabs are coupled to each framework's router.
*/
getSelected() {
return Promise.resolve(this.selectedTab ? this.selectedTab.tab : undefined);
}
/** @internal */
async setRouteId(id) {
const selectedTab = getTab(this.tabs, id);
if (!this.shouldSwitch(selectedTab)) {
return { changed: false, element: this.selectedTab };
}
await this.setActive(selectedTab);
return {
changed: true,
element: this.selectedTab,
markVisible: () => this.tabSwitch(),
};
}
/** @internal */
async getRouteId() {
var _a;
const tabId = (_a = this.selectedTab) === null || _a === void 0 ? void 0 : _a.tab;
return tabId !== undefined ? { id: tabId, element: this.selectedTab } : undefined;
}
setActive(selectedTab) {
if (this.transitioning) {
return Promise.reject('transitioning already happening');
}
this.transitioning = true;
this.leavingTab = this.selectedTab;
this.selectedTab = selectedTab;
this.ionTabsWillChange.emit({ tab: selectedTab.tab });
selectedTab.active = true;
return Promise.resolve();
}
tabSwitch() {
const selectedTab = this.selectedTab;
const leavingTab = this.leavingTab;
this.leavingTab = undefined;
this.transitioning = false;
if (!selectedTab) {
return;
}
if (leavingTab !== selectedTab) {
if (leavingTab) {
leavingTab.active = false;
}
this.ionTabsDidChange.emit({ tab: selectedTab.tab });
}
}
notifyRouter() {
if (this.useRouter) {
const router = document.querySelector('ion-router');
if (router) {
return router.navChanged('forward');
}
}
return Promise.resolve(false);
}
shouldSwitch(selectedTab) {
const leavingTab = this.selectedTab;
return selectedTab !== undefined && selectedTab !== leavingTab && !this.transitioning;
}
get tabs() {
return Array.from(this.el.querySelectorAll('ion-tab'));
}
render() {
return (h(Host, { key: 'd357c4607cfc89fb88404fe12ea7ef5b397fe6bf', onIonTabButtonClick: this.onTabClicked }, h("slot", { key: '18661896589a4ab3c74164f448b928abec9b4db0', name: "top" }), h("div", { key: '3bf30ea2540a196e868a78a861824b4b5d933afd', class: "tabs-inner" }, h("slot", { key: '7cfc154d4d6c1642188ab6508a6be72c8234585e' })), h("slot", { key: '8057679c959195cbdfae156b8ae0cbfd978c5037', name: "bottom" })));
}
get el() { return this; }
static get style() { return IonTabsStyle0; }
}, [1, "ion-tabs", {
"useRouter": [1028, "use-router"],
"selectedTab": [32],
"select": [64],
"getTab": [64],
"getSelected": [64],
"setRouteId": [64],
"getRouteId": [64]
}]);
const getTab = (tabs, tab) => {
const tabEl = typeof tab === 'string' ? tabs.find((t) => t.tab === tab) : tab;
if (!tabEl) {
console.error(`tab with id: "${tabEl}" does not exist`);
}
return tabEl;
};
function defineCustomElement$1() {
if (typeof customElements === "undefined") {
return;
}
const components = ["ion-tabs"];
components.forEach(tagName => { switch (tagName) {
case "ion-tabs":
if (!customElements.get(tagName)) {
customElements.define(tagName, Tabs);
}
break;
} });
}
const IonTabs = Tabs;
const defineCustomElement = defineCustomElement$1;
export { IonTabs, defineCustomElement };