@ionic/core
Version:
Base components for Ionic
961 lines (955 loc) • 36.4 kB
JavaScript
/*!
* (C) Ionic http://ionicframework.com - MIT License
*/
import { proxyCustomElement, HTMLElement, createEvent, h, Build } from '@stencil/core/internal/client';
import { g as getTimeGivenProgression } from './cubic-bezier.js';
import { n as assert, s as shallowEqualStringMap } from './helpers.js';
import { p as printIonWarning } from './index6.js';
import { l as lifecycle, t as transition, s as setPageHidden, d as LIFECYCLE_WILL_UNLOAD, b as LIFECYCLE_WILL_LEAVE, c as LIFECYCLE_DID_LEAVE } from './index2.js';
import { b as getIonMode, c as config } from './ionic-global.js';
import { a as attachComponent } from './framework-delegate.js';
const VIEW_STATE_NEW = 1;
const VIEW_STATE_ATTACHED = 2;
const VIEW_STATE_DESTROYED = 3;
// TODO(FW-2832): types
class ViewController {
constructor(component, params) {
this.component = component;
this.params = params;
this.state = VIEW_STATE_NEW;
}
async init(container) {
this.state = VIEW_STATE_ATTACHED;
if (!this.element) {
const component = this.component;
this.element = await attachComponent(this.delegate, container, component, ['ion-page', 'ion-page-invisible'], this.params);
}
}
/**
* DOM WRITE
*/
_destroy() {
assert(this.state !== VIEW_STATE_DESTROYED, 'view state must be ATTACHED');
const element = this.element;
if (element) {
if (this.delegate) {
this.delegate.removeViewFromDom(element.parentElement, element);
}
else {
element.remove();
}
}
this.nav = undefined;
this.state = VIEW_STATE_DESTROYED;
}
}
const matches = (view, id, params) => {
if (!view) {
return false;
}
if (view.component !== id) {
return false;
}
return shallowEqualStringMap(view.params, params);
};
const convertToView = (page, params) => {
if (!page) {
return null;
}
if (page instanceof ViewController) {
return page;
}
return new ViewController(page, params);
};
const convertToViews = (pages) => {
return pages
.map((page) => {
if (page instanceof ViewController) {
return page;
}
if ('component' in page) {
return convertToView(page.component, page.componentProps === null ? undefined : page.componentProps);
}
return convertToView(page, undefined);
})
.filter((v) => v !== null);
};
const navCss = ":host{left:0;right:0;top:0;bottom:0;position:absolute;contain:layout size style;z-index:0}";
const IonNavStyle0 = navCss;
const Nav = /*@__PURE__*/ proxyCustomElement(class Nav extends HTMLElement {
constructor() {
super();
this.__registerHost();
this.__attachShadow();
this.ionNavWillLoad = createEvent(this, "ionNavWillLoad", 7);
this.ionNavWillChange = createEvent(this, "ionNavWillChange", 3);
this.ionNavDidChange = createEvent(this, "ionNavDidChange", 3);
this.transInstr = [];
this.gestureOrAnimationInProgress = false;
this.useRouter = false;
this.isTransitioning = false;
this.destroyed = false;
this.views = [];
this.didLoad = false;
this.delegate = undefined;
this.swipeGesture = undefined;
this.animated = true;
this.animation = undefined;
this.rootParams = undefined;
this.root = undefined;
}
swipeGestureChanged() {
if (this.gesture) {
this.gesture.enable(this.swipeGesture === true);
}
}
rootChanged() {
const isDev = Build.isDev;
if (this.root === undefined) {
return;
}
if (this.didLoad === false) {
/**
* If the component has not loaded yet, we can skip setting up the root component.
* It will be called when `componentDidLoad` fires.
*/
return;
}
if (!this.useRouter) {
if (this.root !== undefined) {
this.setRoot(this.root, this.rootParams);
}
}
else if (isDev) {
printIonWarning('<ion-nav> does not support a root attribute when using ion-router.', this.el);
}
}
componentWillLoad() {
this.useRouter = document.querySelector('ion-router') !== null && this.el.closest('[no-router]') === null;
if (this.swipeGesture === undefined) {
const mode = getIonMode(this);
this.swipeGesture = config.getBoolean('swipeBackEnabled', mode === 'ios');
}
this.ionNavWillLoad.emit();
}
async componentDidLoad() {
// We want to set this flag before any watch callbacks are manually called
this.didLoad = true;
this.rootChanged();
this.gesture = (await import('./swipe-back.js')).createSwipeBackGesture(this.el, this.canStart.bind(this), this.onStart.bind(this), this.onMove.bind(this), this.onEnd.bind(this));
this.swipeGestureChanged();
}
connectedCallback() {
this.destroyed = false;
}
disconnectedCallback() {
for (const view of this.views) {
lifecycle(view.element, LIFECYCLE_WILL_UNLOAD);
view._destroy();
}
// Release swipe back gesture and transition.
if (this.gesture) {
this.gesture.destroy();
this.gesture = undefined;
}
this.transInstr.length = 0;
this.views.length = 0;
this.destroyed = true;
}
/**
* Push a new component onto the current navigation stack. Pass any additional
* information along as an object. This additional information is accessible
* through NavParams.
*
* @param component The component to push onto the navigation stack.
* @param componentProps Any properties of the component.
* @param opts The navigation options.
* @param done The transition complete function.
*/
push(component, componentProps, opts, done) {
return this.insert(-1, component, componentProps, opts, done);
}
/**
* Inserts a component into the navigation stack at the specified index.
* This is useful to add a component at any point in the navigation stack.
*
* @param insertIndex The index to insert the component at in the stack.
* @param component The component to insert into the navigation stack.
* @param componentProps Any properties of the component.
* @param opts The navigation options.
* @param done The transition complete function.
*/
insert(insertIndex, component, componentProps, opts, done) {
return this.insertPages(insertIndex, [{ component, componentProps }], opts, done);
}
/**
* Inserts an array of components into the navigation stack at the specified index.
* The last component in the array will become instantiated as a view, and animate
* in to become the active view.
*
* @param insertIndex The index to insert the components at in the stack.
* @param insertComponents The components to insert into the navigation stack.
* @param opts The navigation options.
* @param done The transition complete function.
*/
insertPages(insertIndex, insertComponents, opts, done) {
return this.queueTrns({
insertStart: insertIndex,
insertViews: insertComponents,
opts,
}, done);
}
/**
* Pop a component off of the navigation stack. Navigates back from the current
* component.
*
* @param opts The navigation options.
* @param done The transition complete function.
*/
pop(opts, done) {
return this.removeIndex(-1, 1, opts, done);
}
/**
* Pop to a specific index in the navigation stack.
*
* @param indexOrViewCtrl The index or view controller to pop to.
* @param opts The navigation options.
* @param done The transition complete function.
*/
popTo(indexOrViewCtrl, opts, done) {
const ti = {
removeStart: -1,
removeCount: -1,
opts,
};
if (typeof indexOrViewCtrl === 'object' && indexOrViewCtrl.component) {
ti.removeView = indexOrViewCtrl;
ti.removeStart = 1;
}
else if (typeof indexOrViewCtrl === 'number') {
ti.removeStart = indexOrViewCtrl + 1;
}
return this.queueTrns(ti, done);
}
/**
* Navigate back to the root of the stack, no matter how far back that is.
*
* @param opts The navigation options.
* @param done The transition complete function.
*/
popToRoot(opts, done) {
return this.removeIndex(1, -1, opts, done);
}
/**
* Removes a component from the navigation stack at the specified index.
*
* @param startIndex The number to begin removal at.
* @param removeCount The number of components to remove.
* @param opts The navigation options.
* @param done The transition complete function.
*/
removeIndex(startIndex, removeCount = 1, opts, done) {
return this.queueTrns({
removeStart: startIndex,
removeCount,
opts,
}, done);
}
/**
* Set the root for the current navigation stack to a component.
*
* @param component The component to set as the root of the navigation stack.
* @param componentProps Any properties of the component.
* @param opts The navigation options.
* @param done The transition complete function.
*/
setRoot(component, componentProps, opts, done) {
return this.setPages([{ component, componentProps }], opts, done);
}
/**
* Set the views of the current navigation stack and navigate to the last view.
* By default animations are disabled, but they can be enabled by passing options
* to the navigation controller. Navigation parameters can also be passed to the
* individual pages in the array.
*
* @param views The list of views to set as the navigation stack.
* @param opts The navigation options.
* @param done The transition complete function.
*/
setPages(views, opts, done) {
opts !== null && opts !== void 0 ? opts : (opts = {});
// if animation wasn't set to true then default it to NOT animate
if (opts.animated !== true) {
opts.animated = false;
}
return this.queueTrns({
insertStart: 0,
insertViews: views,
removeStart: 0,
removeCount: -1,
opts,
}, done);
}
/**
* Called by the router to update the view.
*
* @param id The component tag.
* @param params The component params.
* @param direction A direction hint.
* @param animation an AnimationBuilder.
*
* @return the status.
* @internal
*/
setRouteId(id, params, direction, animation) {
const active = this.getActiveSync();
if (matches(active, id, params)) {
return Promise.resolve({
changed: false,
element: active.element,
});
}
let resolve;
const promise = new Promise((r) => (resolve = r));
let finish;
const commonOpts = {
updateURL: false,
viewIsReady: (enteringEl) => {
let mark;
const p = new Promise((r) => (mark = r));
resolve({
changed: true,
element: enteringEl,
markVisible: async () => {
mark();
await finish;
},
});
return p;
},
};
if (direction === 'root') {
finish = this.setRoot(id, params, commonOpts);
}
else {
// Look for a view matching the target in the view stack.
const viewController = this.views.find((v) => matches(v, id, params));
if (viewController) {
finish = this.popTo(viewController, Object.assign(Object.assign({}, commonOpts), { direction: 'back', animationBuilder: animation }));
}
else if (direction === 'forward') {
finish = this.push(id, params, Object.assign(Object.assign({}, commonOpts), { animationBuilder: animation }));
}
else if (direction === 'back') {
finish = this.setRoot(id, params, Object.assign(Object.assign({}, commonOpts), { direction: 'back', animated: true, animationBuilder: animation }));
}
}
return promise;
}
/**
* Called by <ion-router> to retrieve the current component.
*
* @internal
*/
async getRouteId() {
const active = this.getActiveSync();
if (active) {
return {
id: active.element.tagName,
params: active.params,
element: active.element,
};
}
return undefined;
}
/**
* Get the active view.
*/
async getActive() {
return this.getActiveSync();
}
/**
* Get the view at the specified index.
*
* @param index The index of the view.
*/
async getByIndex(index) {
return this.views[index];
}
/**
* Returns `true` if the current view can go back.
*
* @param view The view to check.
*/
async canGoBack(view) {
return this.canGoBackSync(view);
}
/**
* Get the previous view.
*
* @param view The view to get.
*/
async getPrevious(view) {
return this.getPreviousSync(view);
}
/**
* Returns the number of views in the stack.
*/
async getLength() {
return Promise.resolve(this.views.length);
}
getActiveSync() {
return this.views[this.views.length - 1];
}
canGoBackSync(view = this.getActiveSync()) {
return !!(view && this.getPreviousSync(view));
}
getPreviousSync(view = this.getActiveSync()) {
if (!view) {
return undefined;
}
const views = this.views;
const index = views.indexOf(view);
return index > 0 ? views[index - 1] : undefined;
}
/**
* Adds a navigation stack change to the queue and schedules it to run.
*
* @returns Whether the transition succeeds.
*/
async queueTrns(ti, done) {
var _a, _b;
if (this.isTransitioning && ((_a = ti.opts) === null || _a === void 0 ? void 0 : _a.skipIfBusy)) {
return false;
}
const promise = new Promise((resolve, reject) => {
ti.resolve = resolve;
ti.reject = reject;
});
ti.done = done;
/**
* If using router, check to see if navigation hooks
* will allow us to perform this transition. This
* is required in order for hooks to work with
* the ion-back-button or swipe to go back.
*/
if (ti.opts && ti.opts.updateURL !== false && this.useRouter) {
const router = document.querySelector('ion-router');
if (router) {
const canTransition = await router.canTransition();
if (canTransition === false) {
return false;
}
if (typeof canTransition === 'string') {
router.push(canTransition, ti.opts.direction || 'back');
return false;
}
}
}
// Normalize empty
if (((_b = ti.insertViews) === null || _b === void 0 ? void 0 : _b.length) === 0) {
ti.insertViews = undefined;
}
// Enqueue transition instruction
this.transInstr.push(ti);
// if there isn't a transition already happening
// then this will kick off this transition
this.nextTrns();
return promise;
}
success(result, ti) {
if (this.destroyed) {
this.fireError('nav controller was destroyed', ti);
return;
}
if (ti.done) {
ti.done(result.hasCompleted, result.requiresTransition, result.enteringView, result.leavingView, result.direction);
}
ti.resolve(result.hasCompleted);
if (ti.opts.updateURL !== false && this.useRouter) {
const router = document.querySelector('ion-router');
if (router) {
const direction = result.direction === 'back' ? 'back' : 'forward';
router.navChanged(direction);
}
}
}
failed(rejectReason, ti) {
if (this.destroyed) {
this.fireError('nav controller was destroyed', ti);
return;
}
this.transInstr.length = 0;
this.fireError(rejectReason, ti);
}
fireError(rejectReason, ti) {
if (ti.done) {
ti.done(false, false, rejectReason);
}
if (ti.reject && !this.destroyed) {
ti.reject(rejectReason);
}
else {
ti.resolve(false);
}
}
/**
* Consumes the next transition in the queue.
*
* @returns whether the transition is executed.
*/
nextTrns() {
// this is the framework's bread 'n butta function
// only one transition is allowed at any given time
if (this.isTransitioning) {
return false;
}
// there is no transition happening right now, executes the next instructions.
const ti = this.transInstr.shift();
if (!ti) {
return false;
}
this.runTransition(ti);
return true;
}
/** Executes all the transition instruction from the queue. */
async runTransition(ti) {
try {
// set that this nav is actively transitioning
this.ionNavWillChange.emit();
this.isTransitioning = true;
this.prepareTI(ti);
const leavingView = this.getActiveSync();
const enteringView = this.getEnteringView(ti, leavingView);
if (!leavingView && !enteringView) {
throw new Error('no views in the stack to be removed');
}
if (enteringView && enteringView.state === VIEW_STATE_NEW) {
await enteringView.init(this.el);
}
this.postViewInit(enteringView, leavingView, ti);
// Needs transition?
const requiresTransition = (ti.enteringRequiresTransition || ti.leavingRequiresTransition) && enteringView !== leavingView;
if (requiresTransition && ti.opts && leavingView) {
const isBackDirection = ti.opts.direction === 'back';
/**
* If heading back, use the entering page's animation
* unless otherwise specified by the developer.
*/
if (isBackDirection) {
ti.opts.animationBuilder = ti.opts.animationBuilder || (enteringView === null || enteringView === void 0 ? void 0 : enteringView.animationBuilder);
}
leavingView.animationBuilder = ti.opts.animationBuilder;
}
let result;
if (requiresTransition) {
result = await this.transition(enteringView, leavingView, ti);
}
else {
// transition is not required, so we are already done!
// they're inserting/removing the views somewhere in the middle or
// beginning, so visually nothing needs to animate/transition
// resolve immediately because there's no animation that's happening
result = {
hasCompleted: true,
requiresTransition: false,
};
}
this.success(result, ti);
this.ionNavDidChange.emit();
}
catch (rejectReason) {
this.failed(rejectReason, ti);
}
this.isTransitioning = false;
this.nextTrns();
}
prepareTI(ti) {
var _a, _b;
var _c;
const viewsLength = this.views.length;
(_a = ti.opts) !== null && _a !== void 0 ? _a : (ti.opts = {});
(_b = (_c = ti.opts).delegate) !== null && _b !== void 0 ? _b : (_c.delegate = this.delegate);
if (ti.removeView !== undefined) {
assert(ti.removeStart !== undefined, 'removeView needs removeStart');
assert(ti.removeCount !== undefined, 'removeView needs removeCount');
const index = this.views.indexOf(ti.removeView);
if (index < 0) {
throw new Error('removeView was not found');
}
ti.removeStart += index;
}
if (ti.removeStart !== undefined) {
if (ti.removeStart < 0) {
ti.removeStart = viewsLength - 1;
}
if (ti.removeCount < 0) {
ti.removeCount = viewsLength - ti.removeStart;
}
ti.leavingRequiresTransition = ti.removeCount > 0 && ti.removeStart + ti.removeCount === viewsLength;
}
if (ti.insertViews) {
// allow -1 to be passed in to auto push it on the end
// and clean up the index if it's larger then the size of the stack
if (ti.insertStart < 0 || ti.insertStart > viewsLength) {
ti.insertStart = viewsLength;
}
ti.enteringRequiresTransition = ti.insertStart === viewsLength;
}
const insertViews = ti.insertViews;
if (!insertViews) {
return;
}
assert(insertViews.length > 0, 'length can not be zero');
const viewControllers = convertToViews(insertViews);
if (viewControllers.length === 0) {
throw new Error('invalid views to insert');
}
// Check all the inserted view are correct
for (const view of viewControllers) {
view.delegate = ti.opts.delegate;
const nav = view.nav;
if (nav && nav !== this) {
throw new Error('inserted view was already inserted');
}
if (view.state === VIEW_STATE_DESTROYED) {
throw new Error('inserted view was already destroyed');
}
}
ti.insertViews = viewControllers;
}
/**
* Returns the view that will be entered considering the transition instructions.
*
* @param ti The instructions.
* @param leavingView The view being left or undefined if none.
*
* @returns The view that will be entered, undefined if none.
*/
getEnteringView(ti, leavingView) {
// The last inserted view will be entered when view are inserted.
const insertViews = ti.insertViews;
if (insertViews !== undefined) {
return insertViews[insertViews.length - 1];
}
// When views are deleted, we will enter the last view that is not removed and not the view being left.
const removeStart = ti.removeStart;
if (removeStart !== undefined) {
const views = this.views;
const removeEnd = removeStart + ti.removeCount;
for (let i = views.length - 1; i >= 0; i--) {
const view = views[i];
if ((i < removeStart || i >= removeEnd) && view !== leavingView) {
return view;
}
}
}
return undefined;
}
/**
* Adds and Removes the views from the navigation stack.
*
* @param enteringView The view being entered.
* @param leavingView The view being left.
* @param ti The instructions.
*/
postViewInit(enteringView, leavingView, ti) {
var _a, _b, _c;
assert(leavingView || enteringView, 'Both leavingView and enteringView are null');
assert(ti.resolve, 'resolve must be valid');
assert(ti.reject, 'reject must be valid');
// Compute the views to remove.
const opts = ti.opts;
const { insertViews, removeStart, removeCount } = ti;
/** Records the view to destroy */
let destroyQueue;
// there are views to remove
if (removeStart !== undefined && removeCount !== undefined) {
assert(removeStart >= 0, 'removeStart can not be negative');
assert(removeCount >= 0, 'removeCount can not be negative');
destroyQueue = [];
for (let i = removeStart; i < removeStart + removeCount; i++) {
const view = this.views[i];
if (view !== undefined && view !== enteringView && view !== leavingView) {
destroyQueue.push(view);
}
}
// default the direction to "back"
(_a = opts.direction) !== null && _a !== void 0 ? _a : (opts.direction = 'back');
}
const finalNumViews = this.views.length + ((_b = insertViews === null || insertViews === void 0 ? void 0 : insertViews.length) !== null && _b !== void 0 ? _b : 0) - (removeCount !== null && removeCount !== void 0 ? removeCount : 0);
assert(finalNumViews >= 0, 'final balance can not be negative');
if (finalNumViews === 0) {
console.warn(`You can't remove all the pages in the navigation stack. nav.pop() is probably called too many times.`, this, this.el);
throw new Error('navigation stack needs at least one root page');
}
// At this point the transition can not be rejected, any throw should be an error
// Insert the new views in the stack.
if (insertViews) {
// add the views to the
let insertIndex = ti.insertStart;
for (const view of insertViews) {
this.insertViewAt(view, insertIndex);
insertIndex++;
}
if (ti.enteringRequiresTransition) {
// default to forward if not already set
(_c = opts.direction) !== null && _c !== void 0 ? _c : (opts.direction = 'forward');
}
}
// if the views to be removed are in the beginning or middle
// and there is not a view that needs to visually transition out
// then just destroy them and don't transition anything
// batch all of lifecycles together
// let's make sure, callbacks are zoned
if (destroyQueue && destroyQueue.length > 0) {
for (const view of destroyQueue) {
lifecycle(view.element, LIFECYCLE_WILL_LEAVE);
lifecycle(view.element, LIFECYCLE_DID_LEAVE);
lifecycle(view.element, LIFECYCLE_WILL_UNLOAD);
}
// once all lifecycle events has been delivered, we can safely detroy the views
for (const view of destroyQueue) {
this.destroyView(view);
}
}
}
async transition(enteringView, leavingView, ti) {
// we should animate (duration > 0) if the pushed page is not the first one (startup)
// or if it is a portal (modal, actionsheet, etc.)
const opts = ti.opts;
const progressCallback = opts.progressAnimation
? (ani) => {
/**
* Because this progress callback is called asynchronously
* it is possible for the gesture to start and end before
* the animation is ever set. In that scenario, we should
* immediately call progressEnd so that the transition promise
* resolves and the gesture does not get locked up.
*/
if (ani !== undefined && !this.gestureOrAnimationInProgress) {
this.gestureOrAnimationInProgress = true;
ani.onFinish(() => {
this.gestureOrAnimationInProgress = false;
}, { oneTimeCallback: true });
/**
* Playing animation to beginning
* with a duration of 0 prevents
* any flickering when the animation
* is later cleaned up.
*/
ani.progressEnd(0, 0, 0);
}
else {
this.sbAni = ani;
}
}
: undefined;
const mode = getIonMode(this);
const enteringEl = enteringView.element;
// eslint-disable-next-line @typescript-eslint/prefer-optional-chain
const leavingEl = leavingView && leavingView.element;
const animationOpts = Object.assign(Object.assign({ mode, showGoBack: this.canGoBackSync(enteringView), baseEl: this.el, progressCallback, animated: this.animated && config.getBoolean('animated', true), enteringEl,
leavingEl }, opts), { animationBuilder: opts.animationBuilder || this.animation || config.get('navAnimation') });
const { hasCompleted } = await transition(animationOpts);
return this.transitionFinish(hasCompleted, enteringView, leavingView, opts);
}
transitionFinish(hasCompleted, enteringView, leavingView, opts) {
/**
* If the transition did not complete, the leavingView will still be the active
* view on the stack. Otherwise unmount all the views after the enteringView.
*/
const activeView = hasCompleted ? enteringView : leavingView;
if (activeView) {
this.unmountInactiveViews(activeView);
}
return {
hasCompleted,
requiresTransition: true,
enteringView,
leavingView,
direction: opts.direction,
};
}
/**
* Inserts a view at the specified index.
*
* When the view already is in the stack it will be moved to the new position.
*
* @param view The view to insert.
* @param index The index where to insert the view.
*/
insertViewAt(view, index) {
const views = this.views;
const existingIndex = views.indexOf(view);
if (existingIndex > -1) {
assert(view.nav === this, 'view is not part of the nav');
// The view already in the stack, removes it.
views.splice(existingIndex, 1);
// and add it back at the requested index.
views.splice(index, 0, view);
}
else {
assert(!view.nav, 'nav is used');
// this is a new view to add to the stack
// create the new entering view
view.nav = this;
views.splice(index, 0, view);
}
}
/**
* Removes a view from the stack.
*
* @param view The view to remove.
*/
removeView(view) {
assert(view.state === VIEW_STATE_ATTACHED || view.state === VIEW_STATE_DESTROYED, 'view state should be loaded or destroyed');
const views = this.views;
const index = views.indexOf(view);
assert(index > -1, 'view must be part of the stack');
if (index >= 0) {
views.splice(index, 1);
}
}
destroyView(view) {
view._destroy();
this.removeView(view);
}
/**
* Unmounts all inactive views after the specified active view.
*
* DOM WRITE
*
* @param activeView The view that is actively visible in the stack. Used to calculate which views to unmount.
*/
unmountInactiveViews(activeView) {
// ok, cleanup time!! Destroy all of the views that are
// INACTIVE and come after the active view
// only do this if the views exist, though
if (this.destroyed) {
return;
}
const views = this.views;
const activeViewIndex = views.indexOf(activeView);
for (let i = views.length - 1; i >= 0; i--) {
const view = views[i];
/**
* When inserting multiple views via insertPages
* the last page will be transitioned to, but the
* others will not be. As a result, a DOM element
* will only be created for the last page inserted.
* As a result, it is possible to have views in the
* stack that do not have `view.element` yet.
*/
const element = view.element;
if (element) {
if (i > activeViewIndex) {
// this view comes after the active view
// let's unload it
lifecycle(element, LIFECYCLE_WILL_UNLOAD);
this.destroyView(view);
}
else if (i < activeViewIndex) {
// this view comes before the active view
// and it is not a portal then ensure it is hidden
setPageHidden(element, true);
}
}
}
}
canStart() {
return (!this.gestureOrAnimationInProgress &&
!!this.swipeGesture &&
!this.isTransitioning &&
this.transInstr.length === 0 &&
this.canGoBackSync());
}
onStart() {
this.gestureOrAnimationInProgress = true;
this.pop({ direction: 'back', progressAnimation: true });
}
onMove(stepValue) {
if (this.sbAni) {
this.sbAni.progressStep(stepValue);
}
}
onEnd(shouldComplete, stepValue, dur) {
if (this.sbAni) {
this.sbAni.onFinish(() => {
this.gestureOrAnimationInProgress = false;
}, { oneTimeCallback: true });
// Account for rounding errors in JS
let newStepValue = shouldComplete ? -0.001 : 0.001;
/**
* Animation will be reversed here, so need to
* reverse the easing curve as well
*
* Additionally, we need to account for the time relative
* to the new easing curve, as `stepValue` is going to be given
* in terms of a linear curve.
*/
if (!shouldComplete) {
this.sbAni.easing('cubic-bezier(1, 0, 0.68, 0.28)');
newStepValue += getTimeGivenProgression([0, 0], [1, 0], [0.68, 0.28], [1, 1], stepValue)[0];
}
else {
newStepValue += getTimeGivenProgression([0, 0], [0.32, 0.72], [0, 1], [1, 1], stepValue)[0];
}
this.sbAni.progressEnd(shouldComplete ? 1 : 0, newStepValue, dur);
}
else {
this.gestureOrAnimationInProgress = false;
}
}
render() {
return h("slot", { key: '71e9b5d07fc90ca5534197a63a003a4154aabd59' });
}
get el() { return this; }
static get watchers() { return {
"swipeGesture": ["swipeGestureChanged"],
"root": ["rootChanged"]
}; }
static get style() { return IonNavStyle0; }
}, [1, "ion-nav", {
"delegate": [16],
"swipeGesture": [1028, "swipe-gesture"],
"animated": [4],
"animation": [16],
"rootParams": [16],
"root": [1],
"push": [64],
"insert": [64],
"insertPages": [64],
"pop": [64],
"popTo": [64],
"popToRoot": [64],
"removeIndex": [64],
"setRoot": [64],
"setPages": [64],
"setRouteId": [64],
"getRouteId": [64],
"getActive": [64],
"getByIndex": [64],
"canGoBack": [64],
"getPrevious": [64],
"getLength": [64]
}, undefined, {
"swipeGesture": ["swipeGestureChanged"],
"root": ["rootChanged"]
}]);
function defineCustomElement$1() {
if (typeof customElements === "undefined") {
return;
}
const components = ["ion-nav"];
components.forEach(tagName => { switch (tagName) {
case "ion-nav":
if (!customElements.get(tagName)) {
customElements.define(tagName, Nav);
}
break;
} });
}
const IonNav = Nav;
const defineCustomElement = defineCustomElement$1;
export { IonNav, defineCustomElement };