function getScrollPosition() {
var state = _historyLibDOMStateStorage.readState(currentKey);
if (!state) {
return null;
}
return state.scrollPosition;
}
savePositionHandle = _domHelpersUtilRequestAnimationFrame2['default'](function () {
savePositionHandle = null;
var state = _historyLibDOMStateStorage.readState(currentKey);
var scrollPosition = [_domHelpersQueryScrollLeft2['default'](window), _domHelpersQueryScrollTop2['default'](window)];
// We have to directly update `DOMStateStorage`, because actually
// updating the location could cause e.g. React Router to re-render the
// entire page, which would lead to observably bad scroll performance.
_historyLibDOMStateStorage.saveState(currentKey, _extends({}, state, { scrollPosition: scrollPosition }));
});
// Re-render the app when window.location changes
function onLocationChange(location) {
// Save the page scroll position into the current location's state
if (currentLocation.key) {
saveState(currentLocation.key, {
...readState(currentLocation.key),
scrollX: windowScrollX(),
scrollY: windowScrollY(),
});
}
currentLocation = location;
UniversalRouter.resolve(routes, {
path: location.pathname,
query: location.query,
state: location.state,
context,
render: render.bind(undefined, container, location), // eslint-disable-line react/jsx-no-bind, max-len
}).catch(err => console.error(err)); // eslint-disable-line no-console
}
// Re-render the app when window.location changes
function onLocationChange(location) {
// Save the page scroll position into the current location's state
if (currentLocation && currentLocation.key) {
saveState(currentLocation.key, {
...readState(currentLocation.key),
scrollX: windowScrollX(),
scrollY: windowScrollY(),
});
}
currentLocation = location;
ReactDOM.render(
<ContextHolder context={context}>
<Router
history={history}
routes={routes}
/>
</ContextHolder>,
container,
renderComplete
);
}
read(location, key) {
return readState(this.getStateKey(location, key));
}