All of the anchors were pointed at `#` which, when clicked, would trigger a hash change in the browser. This change races the change made by the screen handling where the screen handling ends up losing. Because the hash is then tracked as empty rather than `#/login` (for example), the state machine considers future changes as no-ops and doesn't do anything with them.
By using `preventDefault` and `stopPropagation` on the anchor click events, we prevent the browser from automatically going to an empty hash, which then means the screen handling isn't racing the browser, and the hash change state machine doesn't no-op.
After applying that fix, going between pages worked great unless you were going from /login to /home. This is because the MatrixChat state machine was now out of sync (a `view` of `LOGIN` but a `page` of `HomePage` - an invalid state). All we have to do here is ensure the right view is used when navigating to the homepage.
Fixes https://github.com/vector-im/riot-web/issues/4061
Note: the concerns in 4061 about logging out upon entering the view appear to have been solved. Navigating to the login page doesn't obliterate your session, at least in my testing.
The classes on the search box input were changed without updating the focusing
loop in the room filter which used one of these classes as a boundary condition.
This led to a case that could loop forever.
Regressed by #2267.
Fixesvector-im/riot-web#7926.
a view_right_panel_phase is dispatched by RoomHeaderButtons
on view_room, which was triggering this to show the panel again.
Check the fromHeader flag just like when hiding the panel so
only room header buttons can hide or show the right panel
the overflow/underflow events are not always reliable in nooverlay
browsers (FF), so forward the checkOverflow call we need anyway
for the scroll indicator gradients to see if we need to do the
margin trick for the on-hover scrollbar we use in nooverlay browsers.
this fixes on hover jumping in a subroomlist
check overflow on mount
restore size on query change (in case a sublist appeared)
check overflow when updating rooms
avoid duplicating for restoring size and checking overflow
