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ios.transition.ts
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ios.transition.ts
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import { Animation } from '../../interface';
import { TransitionOptions } from '../transition';
const DURATION = 500;
const EASING = 'cubic-bezier(0.36,0.66,0.04,1)';
const OPACITY = 'opacity';
const TRANSFORM = 'transform';
const TRANSLATEX = 'translateX';
const CENTER = '0%';
const OFF_OPACITY = 0.8;
export function shadow<T extends Element>(el: T): ShadowRoot | T {
return el.shadowRoot || el;
}
export function iosTransitionAnimation(AnimationC: Animation, navEl: HTMLElement, opts: TransitionOptions): Promise<Animation> {
const isRTL = document.dir === 'rtl';
const OFF_RIGHT = isRTL ? '-99.5%' : '99.5%';
const OFF_LEFT = isRTL ? '33%' : '-33%';
const enteringEl = opts.enteringEl;
const leavingEl = opts.leavingEl;
const rootTransition = new AnimationC();
rootTransition
.addElement(enteringEl)
.duration(opts.duration || DURATION)
.easing(opts.easing || EASING)
.beforeRemoveClass('ion-page-invisible');
if (leavingEl && navEl) {
const navDecor = new AnimationC();
navDecor
.addElement(navEl)
.beforeAddClass('show-decor');
rootTransition.add(navDecor);
}
const backDirection = (opts.direction === 'back');
// setting up enter view
if (enteringEl) {
const contentEl = enteringEl.querySelector(':scope > ion-content');
const headerEls = enteringEl.querySelectorAll(':scope > ion-header > *:not(ion-toolbar), :scope > ion-footer > *');
const enteringToolBarEle = enteringEl.querySelector(':scope > ion-header > ion-toolbar');
const enteringContent = new AnimationC();
if (!contentEl && !enteringToolBarEle && headerEls.length === 0) {
enteringContent.addElement(enteringEl.querySelector(':scope > .ion-page, :scope > ion-nav, :scope > ion-tabs'));
} else {
enteringContent.addElement(contentEl);
enteringContent.addElement(headerEls);
}
rootTransition.add(enteringContent);
if (backDirection) {
enteringContent
.beforeClearStyles([OPACITY])
.fromTo(TRANSLATEX, OFF_LEFT, CENTER, true)
.fromTo(OPACITY, OFF_OPACITY, 1, true);
} else {
// entering content, forward direction
enteringContent
.beforeClearStyles([OPACITY])
.fromTo(TRANSLATEX, OFF_RIGHT, CENTER, true);
}
if (enteringToolBarEle) {
const enteringToolBar = new AnimationC();
enteringToolBar.addElement(enteringToolBarEle);
rootTransition.add(enteringToolBar);
const enteringTitle = new AnimationC();
enteringTitle.addElement(enteringToolBarEle.querySelector('ion-title'));
const enteringToolBarItems = new AnimationC();
enteringToolBarItems.addElement(enteringToolBarEle.querySelectorAll('ion-buttons,[menuToggle]'));
const enteringToolBarBg = new AnimationC();
enteringToolBarBg.addElement(shadow(enteringToolBarEle).querySelector('.toolbar-background'));
const enteringBackButton = new AnimationC();
const backButtonEl = enteringToolBarEle.querySelector('ion-back-button');
enteringBackButton.addElement(backButtonEl);
enteringToolBar
.add(enteringTitle)
.add(enteringToolBarItems)
.add(enteringToolBarBg)
.add(enteringBackButton);
enteringTitle.fromTo(OPACITY, 0.01, 1, true);
enteringToolBarItems.fromTo(OPACITY, 0.01, 1, true);
if (backDirection) {
enteringTitle.fromTo(TRANSLATEX, OFF_LEFT, CENTER, true);
// back direction, entering page has a back button
enteringBackButton.fromTo(OPACITY, 0.01, 1, true);
} else {
// entering toolbar, forward direction
enteringTitle.fromTo(TRANSLATEX, OFF_RIGHT, CENTER, true);
enteringToolBarBg
.beforeClearStyles([OPACITY])
.fromTo(OPACITY, 0.01, 1, true);
// forward direction, entering page has a back button
enteringBackButton.fromTo(OPACITY, 0.01, 1, true);
if (backButtonEl) {
const enteringBackBtnText = new AnimationC();
enteringBackBtnText
.addElement(shadow(backButtonEl).querySelector('.button-text'))
.fromTo(TRANSLATEX, (isRTL ? '-100px' : '100px'), '0px');
enteringToolBar.add(enteringBackBtnText);
}
}
}
}
// setup leaving view
if (leavingEl) {
const leavingContent = new AnimationC();
leavingContent.addElement(leavingEl.querySelector(':scope > ion-content'));
leavingContent.addElement(leavingEl.querySelectorAll(':scope > ion-header > *:not(ion-toolbar), :scope > ion-footer > *'));
rootTransition.add(leavingContent);
if (backDirection) {
// leaving content, back direction
leavingContent
.beforeClearStyles([OPACITY])
.fromTo(TRANSLATEX, CENTER, (isRTL ? '-100%' : '100%'));
} else {
// leaving content, forward direction
leavingContent
.fromTo(TRANSLATEX, CENTER, OFF_LEFT, true)
.fromTo(OPACITY, 1, OFF_OPACITY, true);
}
const leavingToolBarEle = leavingEl.querySelector(':scope > ion-header > ion-toolbar');
if (leavingToolBarEle) {
const leavingToolBar = new AnimationC();
leavingToolBar.addElement(leavingToolBarEle);
const leavingTitle = new AnimationC();
leavingTitle.addElement(leavingToolBarEle.querySelector('ion-title'));
const leavingToolBarItems = new AnimationC();
leavingToolBarItems.addElement(leavingToolBarEle.querySelectorAll('ion-buttons,[menuToggle]'));
const leavingToolBarBg = new AnimationC();
leavingToolBarBg.addElement(shadow(leavingToolBarEle).querySelector('.toolbar-background'));
const leavingBackButton = new AnimationC();
const backButtonEl = leavingToolBarEle.querySelector('ion-back-button');
leavingBackButton.addElement(backButtonEl);
leavingToolBar
.add(leavingTitle)
.add(leavingToolBarItems)
.add(leavingBackButton)
.add(leavingToolBarBg);
rootTransition.add(leavingToolBar);
// fade out leaving toolbar items
leavingBackButton.fromTo(OPACITY, 0.99, 0, true);
leavingTitle.fromTo(OPACITY, 0.99, 0, true);
leavingToolBarItems.fromTo(OPACITY, 0.99, 0, true);
if (backDirection) {
// leaving toolbar, back direction
leavingTitle.fromTo(TRANSLATEX, CENTER, (isRTL ? '-100%' : '100%'));
// leaving toolbar, back direction, and there's no entering toolbar
// should just slide out, no fading out
leavingToolBarBg
.beforeClearStyles([OPACITY])
.fromTo(OPACITY, 1, 0.01, true);
if (backButtonEl) {
const leavingBackBtnText = new AnimationC();
leavingBackBtnText.addElement(shadow(backButtonEl).querySelector('.button-text'));
leavingBackBtnText.fromTo(TRANSLATEX, CENTER, (isRTL ? -124 : 124) + 'px');
leavingToolBar.add(leavingBackBtnText);
}
} else {
// leaving toolbar, forward direction
leavingTitle
.fromTo(TRANSLATEX, CENTER, OFF_LEFT)
.afterClearStyles([TRANSFORM]);
leavingBackButton.afterClearStyles([OPACITY]);
leavingTitle.afterClearStyles([OPACITY]);
leavingToolBarItems.afterClearStyles([OPACITY]);
}
}
}
// Return the rootTransition promise
return Promise.resolve(rootTransition);
}