projecte_ionic/node_modules/@ionic/angular/esm2015/directives/navigation/ion-tabs.js
2022-02-09 18:30:03 +01:00

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JavaScript
Executable file

import * as tslib_1 from "tslib";
import { Component, ContentChild, EventEmitter, HostListener, Output, ViewChild } from '@angular/core';
import { NavController } from '../../providers/nav-controller';
import { IonTabBar } from '../proxies';
import { IonRouterOutlet } from './ion-router-outlet';
let IonTabs = class IonTabs {
constructor(navCtrl) {
this.navCtrl = navCtrl;
this.ionTabsWillChange = new EventEmitter();
this.ionTabsDidChange = new EventEmitter();
}
/**
* @internal
*/
onPageSelected(detail) {
const stackId = detail.enteringView.stackId;
if (detail.tabSwitch && stackId !== undefined) {
if (this.tabBar) {
this.tabBar.selectedTab = stackId;
}
this.ionTabsWillChange.emit({ tab: stackId });
this.ionTabsDidChange.emit({ tab: stackId });
}
}
/**
* When a tab button is clicked, there are several scenarios:
* 1. If the selected tab is currently active (the tab button has been clicked
* again), then it should go to the root view for that tab.
*
* a. Get the saved root view from the router outlet. If the saved root view
* matches the tabRootUrl, set the route view to this view including the
* navigation extras.
* b. If the saved root view from the router outlet does
* not match, navigate to the tabRootUrl. No navigation extras are
* included.
*
* 2. If the current tab tab is not currently selected, get the last route
* view from the router outlet.
*
* a. If the last route view exists, navigate to that view including any
* navigation extras
* b. If the last route view doesn't exist, then navigate
* to the default tabRootUrl
*/
select(tabOrEvent) {
const isTabString = typeof tabOrEvent === 'string';
const tab = (isTabString) ? tabOrEvent : tabOrEvent.detail.tab;
const alreadySelected = this.outlet.getActiveStackId() === tab;
const tabRootUrl = `${this.outlet.tabsPrefix}/${tab}`;
/**
* If this is a nested tab, prevent the event
* from bubbling otherwise the outer tabs
* will respond to this event too, causing
* the app to get directed to the wrong place.
*/
if (!isTabString) {
tabOrEvent.stopPropagation();
}
if (alreadySelected) {
const activeStackId = this.outlet.getActiveStackId();
const activeView = this.outlet.getLastRouteView(activeStackId);
// If on root tab, do not navigate to root tab again
if (activeView.url === tabRootUrl) {
return;
}
const rootView = this.outlet.getRootView(tab);
const navigationExtras = rootView && tabRootUrl === rootView.url && rootView.savedExtras;
return this.navCtrl.navigateRoot(tabRootUrl, Object.assign({}, (navigationExtras), { animated: true, animationDirection: 'back' }));
}
else {
const lastRoute = this.outlet.getLastRouteView(tab);
/**
* If there is a lastRoute, goto that, otherwise goto the fallback url of the
* selected tab
*/
const url = lastRoute && lastRoute.url || tabRootUrl;
const navigationExtras = lastRoute && lastRoute.savedExtras;
return this.navCtrl.navigateRoot(url, Object.assign({}, (navigationExtras), { animated: true, animationDirection: 'back' }));
}
}
getSelected() {
return this.outlet.getActiveStackId();
}
};
IonTabs.ctorParameters = () => [
{ type: NavController }
];
tslib_1.__decorate([
ViewChild('outlet', { read: IonRouterOutlet, static: false })
], IonTabs.prototype, "outlet", void 0);
tslib_1.__decorate([
ContentChild(IonTabBar, { static: false })
], IonTabs.prototype, "tabBar", void 0);
tslib_1.__decorate([
Output()
], IonTabs.prototype, "ionTabsWillChange", void 0);
tslib_1.__decorate([
Output()
], IonTabs.prototype, "ionTabsDidChange", void 0);
tslib_1.__decorate([
HostListener('ionTabButtonClick', ['$event'])
], IonTabs.prototype, "select", null);
IonTabs = tslib_1.__decorate([
Component({
selector: 'ion-tabs',
template: `
<ng-content select="[slot=top]"></ng-content>
<div class="tabs-inner">
<ion-router-outlet #outlet tabs="true" (stackEvents)="onPageSelected($event)"></ion-router-outlet>
</div>
<ng-content></ng-content>`,
styles: [`
:host {
display: flex;
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
flex-direction: column;
width: 100%;
height: 100%;
contain: layout size style;
z-index: $z-index-page-container;
}
.tabs-inner {
position: relative;
flex: 1;
contain: layout size style;
}`]
})
], IonTabs);
export { IonTabs };
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If the selected tab is currently active (the tab button has been clicked\n   *    again), then it should go to the root view for that tab.\n   *\n   *   a. Get the saved root view from the router outlet. If the saved root view\n   *      matches the tabRootUrl, set the route view to this view including the\n   *      navigation extras.\n   *   b. If the saved root view from the router outlet does\n   *      not match, navigate to the tabRootUrl. No navigation extras are\n   *      included.\n   *\n   * 2. If the current tab tab is not currently selected, get the last route\n   *    view from the router outlet.\n   *\n   *   a. If the last route view exists, navigate to that view including any\n   *      navigation extras\n   *   b. If the last route view doesn't exist, then navigate\n   *      to the default tabRootUrl\n   */\n  @HostListener('ionTabButtonClick', ['$event'])\n  select(tabOrEvent: string | CustomEvent) {\n    const isTabString = typeof tabOrEvent === 'string';\n    const tab = (isTabString) ? tabOrEvent : (tabOrEvent as CustomEvent).detail.tab;\n    const alreadySelected = this.outlet.getActiveStackId() === tab;\n    const tabRootUrl = `${this.outlet.tabsPrefix}/${tab}`;\n\n    /**\n     * If this is a nested tab, prevent the event\n     * from bubbling otherwise the outer tabs\n     * will respond to this event too, causing\n     * the app to get directed to the wrong place.\n     */\n    if (!isTabString) {\n      (tabOrEvent as CustomEvent).stopPropagation();\n    }\n\n    if (alreadySelected) {\n      const activeStackId = this.outlet.getActiveStackId();\n      const activeView = this.outlet.getLastRouteView(activeStackId);\n\n      // If on root tab, do not navigate to root tab again\n      if (activeView.url === tabRootUrl) { return; }\n\n      const rootView = this.outlet.getRootView(tab);\n      const navigationExtras = rootView && tabRootUrl === rootView.url && rootView.savedExtras;\n      return this.navCtrl.navigateRoot(tabRootUrl, {\n        ...(navigationExtras),\n        animated: true,\n        animationDirection: 'back',\n      });\n    } else {\n      const lastRoute = this.outlet.getLastRouteView(tab);\n      /**\n       * If there is a lastRoute, goto that, otherwise goto the fallback url of the\n       * selected tab\n       */\n      const url = lastRoute && lastRoute.url || tabRootUrl;\n      const navigationExtras = lastRoute && lastRoute.savedExtras;\n\n      return this.navCtrl.navigateRoot(url, {\n        ...(navigationExtras),\n        animated: true,\n        animationDirection: 'back',\n      });\n    }\n  }\n\n  getSelected(): string | undefined {\n    return this.outlet.getActiveStackId();\n  }\n}\n"]}