framework7
Version:
Full featured mobile HTML framework for building iOS & Android apps
589 lines (577 loc) • 25.1 kB
JavaScript
import $ from '../../shared/dom7.js';
import History from '../../shared/history.js';
import { getSupport } from '../../shared/get-support.js';
import { getDevice } from '../../shared/get-device.js';
import { now } from '../../shared/utils.js';
function SwipeBack(r) {
const router = r;
const {
$el,
$navbarsEl,
app,
params
} = router;
const support = getSupport();
const device = getDevice();
let isTouched = false;
let isMoved = false;
const touchesStart = {};
let isScrolling;
let $currentPageEl = [];
let $previousPageEl = [];
let viewContainerWidth;
let touchesDiff;
let allowViewTouchMove = true;
let touchStartTime;
let $currentNavbarEl = [];
let $previousNavbarEl = [];
let dynamicNavbar;
let $pageShadowEl;
let $pageOpacityEl;
let animatableNavEls;
const paramsSwipeBackAnimateShadow = params[`${app.theme}SwipeBackAnimateShadow`];
const paramsSwipeBackAnimateOpacity = params[`${app.theme}SwipeBackAnimateOpacity`];
const paramsSwipeBackActiveArea = params[`${app.theme}SwipeBackActiveArea`];
const paramsSwipeBackThreshold = params[`${app.theme}SwipeBackThreshold`];
const transformOrigin = app.rtl ? 'right center' : 'left center';
const transformOriginTitleLarge = app.rtl ? 'calc(100% - var(--f7-navbar-large-title-padding-left) - var(--f7-safe-area-left)) center' : 'calc(var(--f7-navbar-large-title-padding-left) + var(--f7-safe-area-left)) center';
function animatableNavElements() {
const els = [];
const inverter = app.rtl ? -1 : 1;
const currentNavIsTransparent = $currentNavbarEl.hasClass('navbar-transparent') && !$currentNavbarEl.hasClass('navbar-large') && !$currentNavbarEl.hasClass('navbar-transparent-visible');
const currentNavIsLarge = $currentNavbarEl.hasClass('navbar-large');
const currentNavIsCollapsed = $currentNavbarEl.hasClass('navbar-large-collapsed');
const currentNavIsLargeTransparent = $currentNavbarEl.hasClass('navbar-large-transparent') || $currentNavbarEl.hasClass('navbar-large') && $currentNavbarEl.hasClass('navbar-transparent');
const previousNavIsTransparent = $previousNavbarEl.hasClass('navbar-transparent') && !$previousNavbarEl.hasClass('navbar-large') && !$previousNavbarEl.hasClass('navbar-transparent-visible');
const previousNavIsLarge = $previousNavbarEl.hasClass('navbar-large');
const previousNavIsCollapsed = $previousNavbarEl.hasClass('navbar-large-collapsed');
const previousNavIsLargeTransparent = $previousNavbarEl.hasClass('navbar-large-transparent') || $previousNavbarEl.hasClass('navbar-large') && $previousNavbarEl.hasClass('navbar-transparent');
const fromLarge = currentNavIsLarge && !currentNavIsCollapsed;
const toLarge = previousNavIsLarge && !previousNavIsCollapsed;
const $currentNavElements = $currentNavbarEl.find('.left, .title, .right, .subnavbar, .fading, .title-large, .navbar-bg');
const $previousNavElements = $previousNavbarEl.find('.left, .title, .right, .subnavbar, .fading, .title-large, .navbar-bg');
let activeNavBackIconText;
let previousNavBackIconText;
if (params.iosAnimateNavbarBackIcon) {
if ($currentNavbarEl.hasClass('sliding') || $currentNavbarEl.find('.navbar-inner.sliding').length) {
activeNavBackIconText = $currentNavbarEl.find('.left').find('.back .icon + span').eq(0);
} else {
activeNavBackIconText = $currentNavbarEl.find('.left.sliding').find('.back .icon + span').eq(0);
}
if ($previousNavbarEl.hasClass('sliding') || $previousNavbarEl.find('.navbar-inner.sliding').length) {
previousNavBackIconText = $previousNavbarEl.find('.left').find('.back .icon + span').eq(0);
} else {
previousNavBackIconText = $previousNavbarEl.find('.left.sliding').find('.back .icon + span').eq(0);
}
if (activeNavBackIconText.length) {
$previousNavElements.each(el => {
if (!$(el).hasClass('title')) return;
el.f7NavbarLeftOffset += activeNavBackIconText.prev('.icon')[0].offsetWidth;
});
}
}
$currentNavElements.each(navEl => {
const $navEl = $(navEl);
const isSubnavbar = $navEl.hasClass('subnavbar');
const isLeft = $navEl.hasClass('left');
const isTitle = $navEl.hasClass('title');
const isBg = $navEl.hasClass('navbar-bg');
if ((isTitle || isBg) && currentNavIsTransparent) return;
if (!fromLarge && $navEl.hasClass('.title-large')) return;
const el = {
el: navEl
};
if (fromLarge) {
if (isTitle) return;
if ($navEl.hasClass('title-large')) {
if (els.indexOf(el) < 0) els.push(el);
el.overflow = 'visible';
$navEl.find('.title-large-text').each(subNavEl => {
els.push({
el: subNavEl,
transform: progress => `translateX(${progress * 100 * inverter}%)`
});
});
return;
}
}
if (toLarge) {
if (!fromLarge) {
if ($navEl.hasClass('title-large')) {
if (els.indexOf(el) < 0) els.push(el);
el.opacity = 0;
}
}
if (isLeft) {
if (els.indexOf(el) < 0) els.push(el);
el.opacity = progress => 1 - progress ** 0.33;
$navEl.find('.back span').each(subNavEl => {
els.push({
el: subNavEl,
'transform-origin': transformOrigin,
transform: progress => `translateX(calc(${progress} * (var(--f7-navbarTitleLargeOffset) - var(--f7-navbarLeftTextOffset)))) translateY(calc(${progress} * (var(--f7-navbar-large-title-height) - var(--f7-navbar-large-title-padding-vertical) / 2))) scale(${1 + 1 * progress})`
});
});
return;
}
}
if (isBg) {
if (els.indexOf(el) < 0) els.push(el);
if (!fromLarge && !toLarge) {
if (currentNavIsCollapsed) {
if (currentNavIsLargeTransparent) {
el.className = 'ios-swipeback-navbar-bg-large';
}
el.transform = progress => `translateX(${100 * progress * inverter}%) translateY(calc(-1 * var(--f7-navbar-large-title-height)))`;
} else {
el.transform = progress => `translateX(${100 * progress * inverter}%)`;
}
}
if (!fromLarge && toLarge) {
el.className = 'ios-swipeback-navbar-bg-large';
el.transform = progress => `translateX(${100 * progress * inverter}%) translateY(calc(-1 * ${1 - progress} * var(--f7-navbar-large-title-height)))`;
}
if (fromLarge && toLarge) {
el.transform = progress => `translateX(${100 * progress * inverter}%)`;
}
if (fromLarge && !toLarge) {
el.transform = progress => `translateX(${100 * progress * inverter}%) translateY(calc(-${progress} * var(--f7-navbar-large-title-height)))`;
}
return;
}
if ($navEl.hasClass('title-large')) return;
const isSliding = $navEl.hasClass('sliding') || $navEl.parents('.navbar-inner.sliding').length;
if (els.indexOf(el) < 0) els.push(el);
if (!isSubnavbar || isSubnavbar && !isSliding) {
el.opacity = progress => 1 - progress ** 0.33;
}
if (isSliding) {
let transformTarget = el;
if (isLeft && activeNavBackIconText.length && params.iosAnimateNavbarBackIcon) {
const textEl = {
el: activeNavBackIconText[0]
};
transformTarget = textEl;
els.push(textEl);
}
transformTarget.transform = progress => {
let activeNavTranslate = progress * transformTarget.el.f7NavbarRightOffset;
if (device.pixelRatio === 1) activeNavTranslate = Math.round(activeNavTranslate);
if (isSubnavbar && currentNavIsLarge) {
return `translate3d(${activeNavTranslate}px, calc(-1 * var(--f7-navbar-large-collapse-progress) * var(--f7-navbar-large-title-height)), 0)`;
}
return `translate3d(${activeNavTranslate}px,0,0)`;
};
}
});
$previousNavElements.each(navEl => {
const $navEl = $(navEl);
const isSubnavbar = $navEl.hasClass('subnavbar');
const isLeft = $navEl.hasClass('left');
const isTitle = $navEl.hasClass('title');
const isBg = $navEl.hasClass('navbar-bg');
if ((isTitle || isBg) && previousNavIsTransparent) return;
const el = {
el: navEl
};
if (toLarge) {
if (isTitle) return;
if (els.indexOf(el) < 0) els.push(el);
if ($navEl.hasClass('title-large')) {
el.opacity = 1;
el.overflow = 'visible';
$navEl.find('.title-large-text').each(subNavEl => {
els.push({
el: subNavEl,
'transform-origin': transformOriginTitleLarge,
opacity: progress => progress ** 3,
transform: progress => `translateX(calc(${1 - progress} * (var(--f7-navbarLeftTextOffset) - var(--f7-navbarTitleLargeOffset)))) translateY(calc(${progress - 1} * var(--f7-navbar-large-title-height) + ${1 - progress} * var(--f7-navbar-large-title-padding-vertical))) scale(${0.5 + progress * 0.5})`
});
});
return;
}
}
if (isBg) {
if (els.indexOf(el) < 0) els.push(el);
if (!fromLarge && !toLarge) {
if (previousNavIsCollapsed) {
if (previousNavIsLargeTransparent) {
el.className = 'ios-swipeback-navbar-bg-large';
}
el.transform = progress => `translateX(${(-100 + 100 * progress) * inverter}%) translateY(calc(-1 * var(--f7-navbar-large-title-height)))`;
} else {
el.transform = progress => `translateX(${(-100 + 100 * progress) * inverter}%)`;
}
}
if (!fromLarge && toLarge) {
el.transform = progress => `translateX(${(-100 + 100 * progress) * inverter}%) translateY(calc(-1 * ${1 - progress} * var(--f7-navbar-large-title-height)))`;
}
if (fromLarge && !toLarge) {
el.className = 'ios-swipeback-navbar-bg-large';
el.transform = progress => `translateX(${(-100 + 100 * progress) * inverter}%) translateY(calc(-${progress} * var(--f7-navbar-large-title-height)))`;
}
if (fromLarge && toLarge) {
el.transform = progress => `translateX(${(-100 + 100 * progress) * inverter}%)`;
}
return;
}
if ($navEl.hasClass('title-large')) return;
const isSliding = $navEl.hasClass('sliding') || $previousNavbarEl.children('.navbar-inner.sliding').length;
if (els.indexOf(el) < 0) els.push(el);
if (!isSubnavbar || isSubnavbar && !isSliding) {
el.opacity = progress => progress ** 3;
}
if (isSliding) {
let transformTarget = el;
if (isLeft && previousNavBackIconText.length && params.iosAnimateNavbarBackIcon) {
const textEl = {
el: previousNavBackIconText[0]
};
transformTarget = textEl;
els.push(textEl);
}
transformTarget.transform = progress => {
let previousNavTranslate = transformTarget.el.f7NavbarLeftOffset * (1 - progress);
if (device.pixelRatio === 1) previousNavTranslate = Math.round(previousNavTranslate);
if (isSubnavbar && previousNavIsLarge) {
return `translate3d(${previousNavTranslate}px, calc(-1 * var(--f7-navbar-large-collapse-progress) * var(--f7-navbar-large-title-height)), 0)`;
}
return `translate3d(${previousNavTranslate}px,0,0)`;
};
}
});
return els;
}
function setAnimatableNavElements(_temp) {
let {
progress,
reset,
transition,
reflow
} = _temp === void 0 ? {} : _temp;
const styles = ['overflow', 'transform', 'transform-origin', 'opacity'];
if (transition === true || transition === false) {
for (let i = 0; i < animatableNavEls.length; i += 1) {
const el = animatableNavEls[i];
if (el && el.el) {
if (transition === true) el.el.classList.add('navbar-page-transitioning');
if (transition === false) el.el.classList.remove('navbar-page-transitioning');
}
}
}
if (reflow && animatableNavEls.length && animatableNavEls[0] && animatableNavEls[0].el) {
// eslint-disable-next-line
animatableNavEls[0].el._clientLeft = animatableNavEls[0].el.clientLeft;
}
for (let i = 0; i < animatableNavEls.length; i += 1) {
const el = animatableNavEls[i];
if (el && el.el) {
if (el.className && !el.classNameSet && !reset) {
el.el.classList.add(el.className);
el.classNameSet = true;
}
if (el.className && reset) {
el.el.classList.remove(el.className);
}
for (let j = 0; j < styles.length; j += 1) {
const styleProp = styles[j];
if (el[styleProp]) {
if (reset) {
el.el.style[styleProp] = '';
} else if (typeof el[styleProp] === 'function') {
el.el.style[styleProp] = el[styleProp](progress);
} else {
el.el.style[styleProp] = el[styleProp];
}
}
}
}
}
}
function handleTouchStart(e) {
if (!e.isTrusted) return;
const swipeBackEnabled = params[`${app.theme}SwipeBack`];
if (!allowViewTouchMove || !swipeBackEnabled || isTouched || app.swipeout && app.swipeout.el || !router.allowPageChange) return;
if ($(e.target).closest('.range-slider, .calendar-months').length > 0) return;
if ($(e.target).closest('.page-master, .page-master-detail').length > 0 && params.masterDetailBreakpoint > 0 && app.width >= params.masterDetailBreakpoint) return;
isMoved = false;
isTouched = true;
isScrolling = undefined;
touchesStart.x = e.type === 'touchstart' ? e.targetTouches[0].pageX : e.pageX;
touchesStart.y = e.type === 'touchstart' ? e.targetTouches[0].pageY : e.pageY;
touchStartTime = now();
dynamicNavbar = router.dynamicNavbar;
}
function handleTouchMove(e) {
if (!e.isTrusted) return;
if (!isTouched) return;
const pageX = e.type === 'touchmove' ? e.targetTouches[0].pageX : e.pageX;
const pageY = e.type === 'touchmove' ? e.targetTouches[0].pageY : e.pageY;
if (typeof isScrolling === 'undefined') {
isScrolling = !!(isScrolling || Math.abs(pageY - touchesStart.y) > Math.abs(pageX - touchesStart.x)) || pageX < touchesStart.x && !app.rtl || pageX > touchesStart.x && app.rtl;
}
if (isScrolling || e.f7PreventSwipeBack || app.preventSwipeBack) {
isTouched = false;
return;
}
if (!isMoved) {
// Calc values during first move fired
let cancel = false;
const target = $(e.target);
const swipeout = target.closest('.swipeout');
if (swipeout.length > 0) {
if (!app.rtl && swipeout.find('.swipeout-actions-left').length > 0) cancel = true;
if (app.rtl && swipeout.find('.swipeout-actions-right').length > 0) cancel = true;
}
$currentPageEl = target.closest('.page');
if ($currentPageEl.hasClass('no-swipeback') || target.closest('.no-swipeback, .card-opened').length > 0) cancel = true;
$previousPageEl = $el.find('.page-previous');
if ($previousPageEl.length > 1) {
$previousPageEl = $previousPageEl.eq($previousPageEl.length - 1);
}
let notFromBorder = touchesStart.x - $el.offset().left > paramsSwipeBackActiveArea;
viewContainerWidth = $el.width();
if (app.rtl) {
notFromBorder = touchesStart.x < $el.offset().left - $el[0].scrollLeft + (viewContainerWidth - paramsSwipeBackActiveArea);
} else {
notFromBorder = touchesStart.x - $el.offset().left > paramsSwipeBackActiveArea;
}
if (notFromBorder) cancel = true;
if ($previousPageEl.length === 0 || $currentPageEl.length === 0) cancel = true;
if (cancel) {
isTouched = false;
return;
}
if (paramsSwipeBackAnimateShadow) {
$pageShadowEl = $currentPageEl.find('.page-shadow-effect');
if ($pageShadowEl.length === 0) {
$pageShadowEl = $('<div class="page-shadow-effect"></div>');
$currentPageEl.append($pageShadowEl);
}
}
if (paramsSwipeBackAnimateOpacity) {
$pageOpacityEl = $previousPageEl.find('.page-opacity-effect');
if ($pageOpacityEl.length === 0) {
$pageOpacityEl = $('<div class="page-opacity-effect"></div>');
$previousPageEl.append($pageOpacityEl);
}
}
if (dynamicNavbar) {
$currentNavbarEl = $navbarsEl.find('.navbar-current');
$previousNavbarEl = $navbarsEl.find('.navbar-previous');
if ($previousNavbarEl.length > 1) {
$previousNavbarEl = $previousNavbarEl.eq($previousNavbarEl.length - 1);
}
animatableNavEls = animatableNavElements($previousNavbarEl, $currentNavbarEl);
}
// Close/Hide Any Picker
if ($('.sheet.modal-in').length > 0 && app.sheet) {
app.sheet.close($('.sheet.modal-in'));
}
}
e.f7PreventSwipePanel = true;
isMoved = true;
app.preventSwipePanelBySwipeBack = true;
e.preventDefault();
// RTL inverter
const inverter = app.rtl ? -1 : 1;
// Touches diff
touchesDiff = (pageX - touchesStart.x - paramsSwipeBackThreshold) * inverter;
if (touchesDiff < 0) touchesDiff = 0;
const percentage = Math.min(Math.max(touchesDiff / viewContainerWidth, 0), 1);
// Swipe Back Callback
const callbackData = {
percentage,
progress: percentage,
currentPageEl: $currentPageEl[0],
previousPageEl: $previousPageEl[0],
currentNavbarEl: $currentNavbarEl[0],
previousNavbarEl: $previousNavbarEl[0]
};
$el.trigger('swipeback:move', callbackData);
router.emit('swipebackMove', callbackData);
// Transform pages
let currentPageTranslate = touchesDiff * inverter;
let previousPageTranslate = (touchesDiff / 5 - viewContainerWidth / 5) * inverter;
if (!app.rtl) {
currentPageTranslate = Math.min(currentPageTranslate, viewContainerWidth);
previousPageTranslate = Math.min(previousPageTranslate, 0);
} else {
currentPageTranslate = Math.max(currentPageTranslate, -viewContainerWidth);
previousPageTranslate = Math.max(previousPageTranslate, 0);
}
if (device.pixelRatio === 1) {
currentPageTranslate = Math.round(currentPageTranslate);
previousPageTranslate = Math.round(previousPageTranslate);
}
router.swipeBackActive = true;
$([$currentPageEl[0], $previousPageEl[0]]).addClass('page-swipeback-active');
$currentPageEl.transform(`translate3d(${currentPageTranslate}px,0,0)`);
if (paramsSwipeBackAnimateShadow) $pageShadowEl[0].style.opacity = 1 - 1 * percentage;
if (app.theme === 'ios') {
$previousPageEl.transform(`translate3d(${previousPageTranslate}px,0,0)`);
}
if (paramsSwipeBackAnimateOpacity) $pageOpacityEl[0].style.opacity = 1 - 1 * percentage;
// Dynamic Navbars Animation
if (!dynamicNavbar) return;
setAnimatableNavElements({
progress: percentage
});
}
function handleTouchEnd(e) {
if (!e.isTrusted) return;
app.preventSwipePanelBySwipeBack = false;
if (!isTouched || !isMoved) {
isTouched = false;
isMoved = false;
return;
}
isTouched = false;
isMoved = false;
router.swipeBackActive = false;
const $pages = $([$currentPageEl[0], $previousPageEl[0]]);
$pages.removeClass('page-swipeback-active');
if (touchesDiff === 0) {
$pages.transform('');
if ($pageShadowEl && $pageShadowEl.length > 0) $pageShadowEl.remove();
if ($pageOpacityEl && $pageOpacityEl.length > 0) $pageOpacityEl.remove();
if (dynamicNavbar) {
setAnimatableNavElements({
reset: true
});
}
return;
}
const timeDiff = now() - touchStartTime;
let pageChanged = false;
// Swipe back to previous page
if (timeDiff < 300 && touchesDiff > 10 || timeDiff >= 300 && touchesDiff > viewContainerWidth / 2) {
$currentPageEl.removeClass('page-current').addClass(`page-next${app.theme !== 'ios' ? ' page-next-on-right' : ''}`);
$previousPageEl.removeClass('page-previous').addClass('page-current').removeAttr('aria-hidden');
if ($pageShadowEl) $pageShadowEl[0].style.opacity = '';
if ($pageOpacityEl) $pageOpacityEl[0].style.opacity = '';
if (dynamicNavbar) {
router.setNavbarPosition($currentNavbarEl, 'next');
router.setNavbarPosition($previousNavbarEl, 'current', false);
}
pageChanged = true;
}
// Reset custom styles
// Add transitioning class for transition-duration
$pages.addClass('page-transitioning page-transitioning-swipeback');
if (device.ios) {
// eslint-disable-next-line
$currentPageEl[0]._clientLeft = $currentPageEl[0].clientLeft;
}
$pages.transform('');
if (dynamicNavbar) {
setAnimatableNavElements({
progress: pageChanged ? 1 : 0,
transition: true,
reflow: !!device.ios
});
}
allowViewTouchMove = false;
router.allowPageChange = false;
// Swipe Back Callback
const callbackData = {
currentPageEl: $currentPageEl[0],
previousPageEl: $previousPageEl[0],
currentNavbarEl: $currentNavbarEl[0],
previousNavbarEl: $previousNavbarEl[0]
};
if (pageChanged) {
// Update Route
router.currentRoute = $previousPageEl[0].f7Page.route;
router.currentPage = $previousPageEl[0];
// Page before animation callback
router.pageCallback('beforeOut', $currentPageEl, $currentNavbarEl, 'current', 'next', {
route: $currentPageEl[0].f7Page.route,
swipeBack: true
});
router.pageCallback('beforeIn', $previousPageEl, $previousNavbarEl, 'previous', 'current', {
route: $previousPageEl[0].f7Page.route,
swipeBack: true
}, $currentPageEl[0]);
$el.trigger('swipeback:beforechange', callbackData);
router.emit('swipebackBeforeChange', callbackData);
} else {
$el.trigger('swipeback:beforereset', callbackData);
router.emit('swipebackBeforeReset', callbackData);
}
$currentPageEl.transitionEnd(() => {
$pages.removeClass('page-transitioning page-transitioning-swipeback');
if (dynamicNavbar) {
setAnimatableNavElements({
reset: true,
transition: false
});
}
allowViewTouchMove = true;
router.allowPageChange = true;
if (pageChanged) {
// Update History
if (router.history.length === 1) {
router.history.unshift(router.url);
}
router.history.pop();
router.saveHistory();
// Update push state
if (params.browserHistory) {
History.back();
}
// Page after animation callback
router.pageCallback('afterOut', $currentPageEl, $currentNavbarEl, 'current', 'next', {
route: $currentPageEl[0].f7Page.route,
swipeBack: true
});
router.pageCallback('afterIn', $previousPageEl, $previousNavbarEl, 'previous', 'current', {
route: $previousPageEl[0].f7Page.route,
swipeBack: true
});
// Remove Old Page
router.pageCallback('beforeRemove', $currentPageEl, $currentNavbarEl, 'next', {
swipeBack: true
});
router.removePage($currentPageEl);
if (dynamicNavbar) {
router.removeNavbar($currentNavbarEl);
}
$el.trigger('swipeback:afterchange', callbackData);
router.emit('swipebackAfterChange', callbackData);
router.emit('routeChanged', router.currentRoute, router.previousRoute, router);
if (params.preloadPreviousPage) {
router.back(router.history[router.history.length - 2], {
preload: true
});
}
} else {
$el.trigger('swipeback:afterreset', callbackData);
router.emit('swipebackAfterReset', callbackData);
}
if ($pageShadowEl && $pageShadowEl.length > 0) $pageShadowEl.remove();
if ($pageOpacityEl && $pageOpacityEl.length > 0) $pageOpacityEl.remove();
});
}
function attachEvents() {
const passiveListener = app.touchEvents.start === 'touchstart' && support.passiveListener ? {
passive: true,
capture: false
} : false;
$el.on(app.touchEvents.start, handleTouchStart, passiveListener);
app.on('touchmove:active', handleTouchMove);
app.on('touchend:passive', handleTouchEnd);
}
function detachEvents() {
const passiveListener = app.touchEvents.start === 'touchstart' && support.passiveListener ? {
passive: true,
capture: false
} : false;
$el.off(app.touchEvents.start, handleTouchStart, passiveListener);
app.off('touchmove:active', handleTouchMove);
app.off('touchend:passive', handleTouchEnd);
}
attachEvents();
router.on('routerDestroy', detachEvents);
}
export default SwipeBack;