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lilnasy 2023-10-10 16:40:46 +00:00 committed by astrobot-houston
parent bd5aa1cd35
commit a8b979ef40
2 changed files with 67 additions and 66 deletions
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125
packages/astro/src/transitions/router.ts
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@ -19,7 +19,7 @@ const inBrowser = import.meta.env.SSR === false;
export const supportsViewTransitions = inBrowser && !!document.startViewTransition; export const supportsViewTransitions = inBrowser && !!document.startViewTransition;
export const transitionEnabledOnThisPage = () => export const transitionEnabledOnThisPage = () =>
inBrowser && !!document.querySelector('[name="astro-view-transitions-enabled"]'); inBrowser && !!document.querySelector('[name="astro-view-transitions-enabled"]');
const samePage = (otherLocation: URL) => const samePage = (otherLocation: URL) =>
location.pathname === otherLocation.pathname && location.search === otherLocation.search; location.pathname === otherLocation.pathname && location.search === otherLocation.search;
@ -48,7 +48,7 @@ const announce = () => {
const PERSIST_ATTR = 'data-astro-transition-persist'; const PERSIST_ATTR = 'data-astro-transition-persist';
let parser: DOMParser let parser: DOMParser;
// The History API does not tell you if navigation is forward or back, so // The History API does not tell you if navigation is forward or back, so
// you can figure it using an index. On pushState the index is incremented so you // you can figure it using an index. On pushState the index is incremented so you
@ -56,14 +56,14 @@ let parser: DOMParser
let currentHistoryIndex = 0; let currentHistoryIndex = 0;
if (inBrowser) { if (inBrowser) {
if (history.state) { if (history.state) {
// we reloaded a page with history state // we reloaded a page with history state
// (e.g. history navigation from non-transition page or browser reload) // (e.g. history navigation from non-transition page or browser reload)
currentHistoryIndex = history.state.index; currentHistoryIndex = history.state.index;
scrollTo({ left: history.state.scrollX, top: history.state.scrollY }); scrollTo({ left: history.state.scrollX, top: history.state.scrollY });
} else if (transitionEnabledOnThisPage()) { } else if (transitionEnabledOnThisPage()) {
history.replaceState({ index: currentHistoryIndex, scrollX, scrollY, intraPage: false }, ''); history.replaceState({ index: currentHistoryIndex, scrollX, scrollY, intraPage: false }, '');
} }
} }
const throttle = (cb: (...args: any[]) => any, delay: number) => { const throttle = (cb: (...args: any[]) => any, delay: number) => {
@ -347,7 +347,7 @@ async function transition(
toLocation = new URL(response.redirected); toLocation = new URL(response.redirected);
} }
parser ??= new DOMParser() parser ??= new DOMParser();
const newDocument = parser.parseFromString(response.html, response.mediaType); const newDocument = parser.parseFromString(response.html, response.mediaType);
// The next line might look like a hack, // The next line might look like a hack,
@ -388,12 +388,13 @@ async function transition(
let navigateOnServerWarned = false; let navigateOnServerWarned = false;
export function navigate(href: string, options?: Options) { export function navigate(href: string, options?: Options) {
if (inBrowser === false) { if (inBrowser === false) {
if (!navigateOnServerWarned) { if (!navigateOnServerWarned) {
// instantiate an error for the stacktrace to show to user. // instantiate an error for the stacktrace to show to user.
const warning = new Error("The view transtions client API was called during a server side render. This may be unintentional as the navigate() function is expected to be called in response to user interactions. Please make sure that your usage is correct."); const warning = new Error(
warning.name = "Warning"; 'The view transtions client API was called during a server side render. This may be unintentional as the navigate() function is expected to be called in response to user interactions. Please make sure that your usage is correct.'
);
warning.name = 'Warning';
console.warn(warning); console.warn(warning);
navigateOnServerWarned = true; navigateOnServerWarned = true;
} }
@ -418,60 +419,60 @@ export function navigate(href: string, options?: Options) {
} }
function onPopState(ev: PopStateEvent) { function onPopState(ev: PopStateEvent) {
if (!transitionEnabledOnThisPage() && ev.state) { if (!transitionEnabledOnThisPage() && ev.state) {
// The current page doesn't have View Transitions enabled // The current page doesn't have View Transitions enabled
// but the page we navigate to does (because it set the state). // but the page we navigate to does (because it set the state).
// Do a full page refresh to reload the client-side router from the new page. // Do a full page refresh to reload the client-side router from the new page.
// Scroll restauration will then happen during the reload when the router's code is re-executed // Scroll restauration will then happen during the reload when the router's code is re-executed
if (history.scrollRestoration) {
history.scrollRestoration = 'manual';
}
location.reload();
return;
}
// History entries without state are created by the browser (e.g. for hash links)
// Our view transition entries always have state.
// Just ignore stateless entries.
// The browser will handle navigation fine without our help
if (ev.state === null) {
if (history.scrollRestoration) {
history.scrollRestoration = 'auto';
}
return;
}
// With the default "auto", the browser will jump to the old scroll position
// before the ViewTransition is complete.
if (history.scrollRestoration) { if (history.scrollRestoration) {
history.scrollRestoration = 'manual'; history.scrollRestoration = 'manual';
} }
location.reload();
const state: State = history.state; return;
if (state.intraPage) {
// this is non transition intra-page scrolling
scrollTo(state.scrollX, state.scrollY);
} else {
const nextIndex = state.index;
const direction: Direction = nextIndex > currentHistoryIndex ? 'forward' : 'back';
currentHistoryIndex = nextIndex;
transition(direction, new URL(location.href), {}, state);
}
} }
// History entries without state are created by the browser (e.g. for hash links)
// Our view transition entries always have state.
// Just ignore stateless entries.
// The browser will handle navigation fine without our help
if (ev.state === null) {
if (history.scrollRestoration) {
history.scrollRestoration = 'auto';
}
return;
}
// With the default "auto", the browser will jump to the old scroll position
// before the ViewTransition is complete.
if (history.scrollRestoration) {
history.scrollRestoration = 'manual';
}
const state: State = history.state;
if (state.intraPage) {
// this is non transition intra-page scrolling
scrollTo(state.scrollX, state.scrollY);
} else {
const nextIndex = state.index;
const direction: Direction = nextIndex > currentHistoryIndex ? 'forward' : 'back';
currentHistoryIndex = nextIndex;
transition(direction, new URL(location.href), {}, state);
}
}
if (inBrowser) { if (inBrowser) {
if (supportsViewTransitions || getFallback() !== 'none') { if (supportsViewTransitions || getFallback() !== 'none') {
addEventListener('popstate', onPopState); addEventListener('popstate', onPopState);
addEventListener('load', onPageLoad); addEventListener('load', onPageLoad);
// There's not a good way to record scroll position before a back button. // There's not a good way to record scroll position before a back button.
// So the way we do it is by listening to scrollend if supported, and if not continuously record the scroll position. // So the way we do it is by listening to scrollend if supported, and if not continuously record the scroll position.
const updateState = () => { const updateState = () => {
persistState({ ...history.state, scrollX, scrollY }); persistState({ ...history.state, scrollX, scrollY });
}; };
if ('onscrollend' in window) addEventListener('scrollend', updateState); if ('onscrollend' in window) addEventListener('scrollend', updateState);
else addEventListener('scroll', throttle(updateState, 300)); else addEventListener('scroll', throttle(updateState, 300));
markScriptsExec(); markScriptsExec();
} }
} }