void
nsAppShell::LegacyGeckoEvent::PostTo(mozilla::LinkedList<Event>& queue)
{
{
EVLOG("nsAppShell::PostEvent %p %d", ae, ae->Type());
switch (ae->Type()) {
case AndroidGeckoEvent::VIEWPORT:
// Coalesce a previous viewport event with this one, while
// allowing coalescing to happen across native callback events.
for (Event* event = queue.getLast(); event;
event = event->getPrevious())
{
if (event->HasSameTypeAs(this) &&
static_cast<LegacyGeckoEvent*>(event)->ae->Type()
== AndroidGeckoEvent::VIEWPORT) {
// Found a previous viewport event; remove it.
delete event;
break;
}
NativeCallbackEvent callbackEvent(nullptr);
if (event->HasSameTypeAs(&callbackEvent)) {
// Allow coalescing viewport events across callback events.
continue;
}
// End of search for viewport events to coalesce.
break;
}
queue.insertBack(this);
break;
case AndroidGeckoEvent::MOTION_EVENT:
case AndroidGeckoEvent::APZ_INPUT_EVENT:
if (sAppShell->mAllowCoalescingTouches) {
Event* const event = queue.getLast();
if (event && event->HasSameTypeAs(this) && ae->CanCoalesceWith(
static_cast<LegacyGeckoEvent*>(event)->ae.get())) {
// consecutive motion-move events; drop the last one before adding the new one
EVLOG("nsAppShell: Dropping old move event at %p in favour of new move event %p", event, ae);
// Delete the event and remove from list.
delete event;
}
}
queue.insertBack(this);
break;
default:
queue.insertBack(this);
break;
}
}
}
void
nsAppShell::LegacyGeckoEvent::PostTo(mozilla::LinkedList<Event>& queue)
{
{
EVLOG("nsAppShell::PostEvent %p %d", ae, ae->Type());
switch (ae->Type()) {
case AndroidGeckoEvent::COMPOSITOR_CREATE:
case AndroidGeckoEvent::COMPOSITOR_PAUSE:
case AndroidGeckoEvent::COMPOSITOR_RESUME:
// Give priority to these events, but maintain their order wrt each other.
{
Event* event = queue.getFirst();
while (event && event->HasSameTypeAs(this)) {
const auto& e = static_cast<LegacyGeckoEvent*>(event)->ae;
if (e->Type() != AndroidGeckoEvent::COMPOSITOR_CREATE
&& e->Type() != AndroidGeckoEvent::COMPOSITOR_PAUSE
&& e->Type() != AndroidGeckoEvent::COMPOSITOR_RESUME) {
break;
}
event = event->getNext();
}
if (event) {
event->setPrevious(this);
} else {
queue.insertFront(this);
}
EVLOG("nsAppShell: Inserting compositor event %d to maintain priority order", ae->Type());
}
break;
case AndroidGeckoEvent::VIEWPORT:
// Coalesce a previous viewport event with this one, while
// allowing coalescing to happen across native callback events.
for (Event* event = queue.getLast(); event;
event = event->getPrevious())
{
if (event->HasSameTypeAs(this) &&
static_cast<LegacyGeckoEvent*>(event)->ae->Type()
== AndroidGeckoEvent::VIEWPORT) {
// Found a previous viewport event; remove it.
delete event;
break;
}
NativeCallbackEvent callbackEvent(nullptr);
if (event->HasSameTypeAs(&callbackEvent)) {
// Allow coalescing viewport events across callback events.
continue;
}
// End of search for viewport events to coalesce.
break;
}
queue.insertBack(this);
break;
case AndroidGeckoEvent::MOTION_EVENT:
case AndroidGeckoEvent::APZ_INPUT_EVENT:
if (nsAppShell::gAppShell->mAllowCoalescingTouches) {
Event* const event = queue.getLast();
if (event && event->HasSameTypeAs(this) && ae->CanCoalesceWith(
static_cast<LegacyGeckoEvent*>(event)->ae.get())) {
// consecutive motion-move events; drop the last one before adding the new one
EVLOG("nsAppShell: Dropping old move event at %p in favour of new move event %p", event, ae);
// Delete the event and remove from list.
delete event;
}
}
queue.insertBack(this);
break;
default:
queue.insertBack(this);
break;
}
}
}
