PRBool
nsAppShell::ProcessNextNativeEvent(PRBool mayWait)
{
EVLOG("nsAppShell::ProcessNextNativeEvent %d", mayWait);
PR_Lock(mCondLock);
nsAutoPtr<AndroidGeckoEvent> curEvent;
AndroidGeckoEvent *nextEvent;
curEvent = GetNextEvent();
if (!curEvent && mayWait) {
// hmm, should we really hardcode this 10s?
#if defined(ANDROID_DEBUG_EVENTS)
PRTime t0, t1;
EVLOG("nsAppShell: waiting on mQueueCond");
t0 = PR_Now();
PR_WaitCondVar(mQueueCond, PR_MillisecondsToInterval(10000));
t1 = PR_Now();
EVLOG("nsAppShell: wait done, waited %d ms", (int)(t1-t0)/1000);
#else
PR_WaitCondVar(mQueueCond, PR_INTERVAL_NO_TIMEOUT);
#endif
curEvent = GetNextEvent();
}
PR_Unlock(mCondLock);
if (!curEvent)
return false;
// Combine subsequent events of the same type
nextEvent = PeekNextEvent();
while (nextEvent) {
int curType = curEvent->Type();
int nextType = nextEvent->Type();
while (nextType == AndroidGeckoEvent::DRAW &&
mNumDraws > 1)
{
// skip this draw, since there's a later one already in the queue.. this will let us
// deal with sequences that look like:
// MOVE DRAW MOVE DRAW MOVE DRAW
// and end up with just
// MOVE DRAW
// when we process all the events.
RemoveNextEvent();
delete nextEvent;
#if defined(ANDROID_DEBUG_EVENTS)
ALOG("# Removing DRAW event (%d outstanding)", mNumDraws);
#endif
nextEvent = PeekNextEvent();
nextType = nextEvent->Type();
}
// If the next type of event isn't the same as the current type,
// we don't coalesce.
if (nextType != curType)
break;
// Can only coalesce motion move events, for motion events
if (curType != AndroidGeckoEvent::MOTION_EVENT)
break;
if (!(curEvent->Action() == AndroidMotionEvent::ACTION_MOVE &&
nextEvent->Action() == AndroidMotionEvent::ACTION_MOVE))
break;
#if defined(ANDROID_DEBUG_EVENTS)
ALOG("# Removing % 2d event", curType);
#endif
RemoveNextEvent();
curEvent = nextEvent;
nextEvent = PeekNextEvent();
}
EVLOG("nsAppShell: event %p %d [ndraws %d]", (void*)curEvent.get(), curEvent->Type(), mNumDraws);
nsWindow *target = (nsWindow*) curEvent->NativeWindow();
switch (curEvent->Type()) {
case AndroidGeckoEvent::NATIVE_POKE:
NativeEventCallback();
break;
case AndroidGeckoEvent::SENSOR_EVENT:
gAccel->AccelerationChanged(-curEvent->X(), curEvent->Y(), curEvent->Z());
break;
case AndroidGeckoEvent::LOCATION_EVENT:
if (!gLocationCallback)
break;
if (curEvent->GeoPosition())
gLocationCallback->Update(curEvent->GeoPosition());
else
NS_WARNING("Received location event without geoposition!");
break;
case AndroidGeckoEvent::ACTIVITY_STOPPING: {
nsCOMPtr<nsIObserverService> obsServ =
mozilla::services::GetObserverService();
NS_NAMED_LITERAL_STRING(context, "shutdown-persist");
obsServ->NotifyObservers(nsnull, "quit-application-granted", nsnull);
obsServ->NotifyObservers(nsnull, "quit-application-forced", nsnull);
obsServ->NotifyObservers(nsnull, "profile-change-net-teardown", context.get());
obsServ->NotifyObservers(nsnull, "profile-change-teardown", context.get());
obsServ->NotifyObservers(nsnull, "profile-before-change", context.get());
nsCOMPtr<nsIAppStartup> appSvc = do_GetService("@mozilla.org/toolkit/app-startup;1");
if (appSvc)
appSvc->Quit(nsIAppStartup::eForceQuit);
break;
}
case AndroidGeckoEvent::ACTIVITY_PAUSING: {
// We really want to send a notification like profile-before-change,
// but profile-before-change ends up shutting some things down instead
// of flushing data
nsCOMPtr<nsIPrefService> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs)
prefs->SavePrefFile(nsnull);
// The OS is sending us to the background, block this thread until
// onResume is called to signal that we're back in the foreground
PR_WaitCondVar(mPaused, PR_INTERVAL_NO_TIMEOUT);
break;
}
case AndroidGeckoEvent::LOAD_URI: {
nsCOMPtr<nsICommandLineRunner> cmdline
(do_CreateInstance("@mozilla.org/toolkit/command-line;1"));
if (!cmdline)
break;
char *uri = ToNewUTF8String(curEvent->Characters());
if (!uri)
break;
char* argv[3] = {
"dummyappname",
"-remote",
uri
};
nsresult rv = cmdline->Init(3, argv, nsnull, nsICommandLine::STATE_REMOTE_AUTO);
if (NS_SUCCEEDED(rv))
cmdline->Run();
nsMemory::Free(uri);
break;
}
default:
if (target)
target->OnAndroidEvent(curEvent);
else
nsWindow::OnGlobalAndroidEvent(curEvent);
}
EVLOG("nsAppShell: -- done event %p %d", (void*)curEvent.get(), curEvent->Type());
return true;
}
void
nsAppShell::PostEvent(AndroidGeckoEvent *ae)
{
{
// set this to true when inserting events that we can coalesce
// viewport events across. this is effectively maintaining a whitelist
// of events that are unaffected by viewport changes.
bool allowCoalescingNextViewport = false;
MutexAutoLock lock(mQueueLock);
EVLOG("nsAppShell::PostEvent %p %d", ae, ae->Type());
switch (ae->Type()) {
case AndroidGeckoEvent::SURFACE_DESTROYED:
// Give priority to this event, and discard any pending
// SURFACE_CREATED events.
mEventQueue.InsertElementAt(0, ae);
AndroidGeckoEvent *event;
for (int i = mEventQueue.Length() - 1; i >= 1; i--) {
event = mEventQueue[i];
if (event->Type() == AndroidGeckoEvent::SURFACE_CREATED) {
EVLOG("nsAppShell: Dropping old SURFACE_CREATED event at %p %d", event, i);
mEventQueue.RemoveElementAt(i);
delete event;
}
}
break;
case AndroidGeckoEvent::COMPOSITOR_PAUSE:
case AndroidGeckoEvent::COMPOSITOR_RESUME:
// Give priority to these events, but maintain their order wrt each other.
{
uint32_t i = 0;
while (i < mEventQueue.Length() &&
(mEventQueue[i]->Type() == AndroidGeckoEvent::COMPOSITOR_PAUSE ||
mEventQueue[i]->Type() == AndroidGeckoEvent::COMPOSITOR_RESUME)) {
i++;
}
EVLOG("nsAppShell: Inserting compositor event %d at position %d to maintain priority order", ae->Type(), i);
mEventQueue.InsertElementAt(i, ae);
}
break;
case AndroidGeckoEvent::DRAW:
if (mQueuedDrawEvent) {
// coalesce this new draw event with the one already in the queue
const nsIntRect& oldRect = mQueuedDrawEvent->Rect();
const nsIntRect& newRect = ae->Rect();
int combinedArea = (oldRect.width * oldRect.height) +
(newRect.width * newRect.height);
nsIntRect combinedRect = oldRect.Union(newRect);
// XXX We may want to consider using regions instead of rectangles.
// Print an error if we're upload a lot more than we would
// if we handled this as two separate events.
int boundsArea = combinedRect.width * combinedRect.height;
if (boundsArea > combinedArea * 8)
ALOG("nsAppShell: Area of bounds greatly exceeds combined area: %d > %d",
boundsArea, combinedArea);
// coalesce into the new draw event rather than the queued one because
// it is not always safe to move draws earlier in the queue; there may
// be events between the two draws that affect scroll position or something.
ae->Init(AndroidGeckoEvent::DRAW, combinedRect);
EVLOG("nsAppShell: Coalescing previous DRAW event at %p into new DRAW event %p", mQueuedDrawEvent, ae);
mEventQueue.RemoveElement(mQueuedDrawEvent);
delete mQueuedDrawEvent;
}
if (!mAllowCoalescingNextDraw) {
// if we're not allowing coalescing of this draw event, then
// don't set mQueuedDrawEvent to point to this; that way the
// next draw event that comes in won't kill this one.
mAllowCoalescingNextDraw = true;
mQueuedDrawEvent = nullptr;
} else {
mQueuedDrawEvent = ae;
}
allowCoalescingNextViewport = true;
mEventQueue.AppendElement(ae);
break;
case AndroidGeckoEvent::VIEWPORT:
if (mQueuedViewportEvent) {
// drop the previous viewport event now that we have a new one
EVLOG("nsAppShell: Dropping old viewport event at %p in favour of new VIEWPORT event %p", mQueuedViewportEvent, ae);
mEventQueue.RemoveElement(mQueuedViewportEvent);
delete mQueuedViewportEvent;
}
mQueuedViewportEvent = ae;
// temporarily turn off draw-coalescing, so that we process a draw
// event as soon as possible after a viewport change
mAllowCoalescingNextDraw = false;
allowCoalescingNextViewport = true;
mEventQueue.AppendElement(ae);
break;
case AndroidGeckoEvent::MOTION_EVENT:
if (ae->Action() == AndroidMotionEvent::ACTION_MOVE && mAllowCoalescingTouches) {
int len = mEventQueue.Length();
if (len > 0) {
AndroidGeckoEvent* event = mEventQueue[len - 1];
if (event->Type() == AndroidGeckoEvent::MOTION_EVENT && event->Action() == AndroidMotionEvent::ACTION_MOVE) {
// 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);
mEventQueue.RemoveElementAt(len - 1);
delete event;
}
}
}
mEventQueue.AppendElement(ae);
break;
case AndroidGeckoEvent::NATIVE_POKE:
allowCoalescingNextViewport = true;
// fall through
default:
mEventQueue.AppendElement(ae);
break;
}
// if the event wasn't on our whitelist then reset mQueuedViewportEvent
// so that we don't coalesce future viewport events into the last viewport
// event we added
if (!allowCoalescingNextViewport)
mQueuedViewportEvent = nullptr;
}
NotifyNativeEvent();
}
bool
nsAppShell::ProcessNextNativeEvent(bool mayWait)
{
EVLOG("nsAppShell::ProcessNextNativeEvent %d", mayWait);
nsAutoPtr<AndroidGeckoEvent> curEvent;
AndroidGeckoEvent *nextEvent;
{
MutexAutoLock lock(mCondLock);
curEvent = PopNextEvent();
if (!curEvent && mayWait) {
// hmm, should we really hardcode this 10s?
#if defined(DEBUG_ANDROID_EVENTS)
PRTime t0, t1;
EVLOG("nsAppShell: waiting on mQueueCond");
t0 = PR_Now();
mQueueCond.Wait(PR_MillisecondsToInterval(10000));
t1 = PR_Now();
EVLOG("nsAppShell: wait done, waited %d ms", (int)(t1-t0)/1000);
#else
mQueueCond.Wait();
#endif
curEvent = PopNextEvent();
}
}
if (!curEvent)
return false;
// Combine subsequent events of the same type
nextEvent = PeekNextEvent();
while (nextEvent) {
int curType = curEvent->Type();
int nextType = nextEvent->Type();
while (nextType == AndroidGeckoEvent::VIEWPORT && mNumViewports > 1) {
// Skip this viewport change, as there's another one later and
// processing this one will only cause more unnecessary work
PopNextEvent();
delete nextEvent;
nextEvent = PeekNextEvent();
nextType = nextEvent->Type();
}
while (nextType == AndroidGeckoEvent::DRAW && mLastDrawEvent &&
mNumDraws > 1)
{
// skip this draw, since there's a later one already in the queue.. this will let us
// deal with sequences that look like:
// MOVE DRAW MOVE DRAW MOVE DRAW
// and end up with just
// MOVE DRAW
// when we process all the events.
// Combine the next draw event's rect with the last one in the queue
const nsIntRect& nextRect = nextEvent->Rect();
const nsIntRect& lastRect = mLastDrawEvent->Rect();
int combinedArea = (lastRect.width * lastRect.height) +
(nextRect.width * nextRect.height);
nsIntRect combinedRect = lastRect.Union(nextRect);
mLastDrawEvent->Init(AndroidGeckoEvent::DRAW, combinedRect);
// XXX We may want to consider using regions instead of rectangles.
// Print an error if we're upload a lot more than we would
// if we handled this as two separate events.
int boundsArea = combinedRect.width * combinedRect.height;
if (boundsArea > combinedArea * 8)
ALOG("nsAppShell::ProcessNextNativeEvent: "
"Area of bounds greatly exceeds combined area: %d > %d",
boundsArea, combinedArea);
// Remove the next draw event
PopNextEvent();
delete nextEvent;
#if defined(DEBUG_ANDROID_EVENTS)
ALOG("# Removing DRAW event (%d outstanding)", mNumDraws);
#endif
nextEvent = PeekNextEvent();
nextType = nextEvent->Type();
}
// If the next type of event isn't the same as the current type,
// we don't coalesce.
if (nextType != curType)
break;
// Can only coalesce motion move events, for motion events
if (curType != AndroidGeckoEvent::MOTION_EVENT)
break;
if (!(curEvent->Action() == AndroidMotionEvent::ACTION_MOVE &&
nextEvent->Action() == AndroidMotionEvent::ACTION_MOVE))
break;
#if defined(DEBUG_ANDROID_EVENTS)
ALOG("# Removing % 2d event", curType);
#endif
curEvent = PopNextEvent();
nextEvent = PeekNextEvent();
}
EVLOG("nsAppShell: event %p %d [ndraws %d]", (void*)curEvent.get(), curEvent->Type(), mNumDraws);
switch (curEvent->Type()) {
case AndroidGeckoEvent::NATIVE_POKE:
NativeEventCallback();
break;
case AndroidGeckoEvent::ACCELERATION_EVENT:
gDeviceMotionSystem->DeviceMotionChanged(nsIDeviceMotionData::TYPE_ACCELERATION,
-curEvent->X(),
curEvent->Y(),
curEvent->Z());
break;
case AndroidGeckoEvent::ORIENTATION_EVENT:
gDeviceMotionSystem->DeviceMotionChanged(nsIDeviceMotionData::TYPE_ORIENTATION,
-curEvent->Alpha(),
curEvent->Beta(),
curEvent->Gamma());
break;
case AndroidGeckoEvent::LOCATION_EVENT: {
if (!gLocationCallback)
break;
nsGeoPosition* p = curEvent->GeoPosition();
nsGeoPositionAddress* a = curEvent->GeoAddress();
if (p) {
p->SetAddress(a);
gLocationCallback->Update(curEvent->GeoPosition());
}
else
NS_WARNING("Received location event without geoposition!");
break;
}
case AndroidGeckoEvent::ACTIVITY_STOPPING: {
nsCOMPtr<nsIObserverService> obsServ =
mozilla::services::GetObserverService();
NS_NAMED_LITERAL_STRING(minimize, "heap-minimize");
obsServ->NotifyObservers(nsnull, "memory-pressure", minimize.get());
obsServ->NotifyObservers(nsnull, "application-background", nsnull);
break;
}
case AndroidGeckoEvent::ACTIVITY_SHUTDOWN: {
nsCOMPtr<nsIObserverService> obsServ =
mozilla::services::GetObserverService();
NS_NAMED_LITERAL_STRING(context, "shutdown-persist");
obsServ->NotifyObservers(nsnull, "quit-application-granted", nsnull);
obsServ->NotifyObservers(nsnull, "quit-application-forced", nsnull);
obsServ->NotifyObservers(nsnull, "profile-change-net-teardown", context.get());
obsServ->NotifyObservers(nsnull, "profile-change-teardown", context.get());
obsServ->NotifyObservers(nsnull, "profile-before-change", context.get());
nsCOMPtr<nsIAppStartup> appSvc = do_GetService("@mozilla.org/toolkit/app-startup;1");
if (appSvc)
appSvc->Quit(nsIAppStartup::eForceQuit);
break;
}
case AndroidGeckoEvent::ACTIVITY_PAUSING: {
// We really want to send a notification like profile-before-change,
// but profile-before-change ends up shutting some things down instead
// of flushing data
nsIPrefService* prefs = Preferences::GetService();
if (prefs) {
// reset the crash loop state
nsCOMPtr<nsIPrefBranch> prefBranch;
prefs->GetBranch("browser.sessionstore.", getter_AddRefs(prefBranch));
if (prefBranch)
prefBranch->SetIntPref("recent_crashes", 0);
prefs->SavePrefFile(nsnull);
}
break;
}
case AndroidGeckoEvent::ACTIVITY_START: {
nsCOMPtr<nsIObserverService> obsServ =
mozilla::services::GetObserverService();
obsServ->NotifyObservers(nsnull, "application-foreground", nsnull);
break;
}
case AndroidGeckoEvent::VIEWPORT:
case AndroidGeckoEvent::BROADCAST: {
if (curEvent->Characters().Length() == 0)
break;
nsCOMPtr<nsIObserverService> obsServ =
mozilla::services::GetObserverService();
const NS_ConvertUTF16toUTF8 topic(curEvent->Characters());
const nsPromiseFlatString& data = PromiseFlatString(curEvent->CharactersExtra());
obsServ->NotifyObservers(nsnull, topic.get(), data.get());
break;
}
case AndroidGeckoEvent::LOAD_URI: {
nsCOMPtr<nsICommandLineRunner> cmdline
(do_CreateInstance("@mozilla.org/toolkit/command-line;1"));
if (!cmdline)
break;
if (curEvent->Characters().Length() == 0)
break;
char *uri = ToNewUTF8String(curEvent->Characters());
if (!uri)
break;
const char *argv[3] = {
"dummyappname",
"-remote",
uri
};
nsresult rv = cmdline->Init(3, const_cast<char **>(argv), nsnull, nsICommandLine::STATE_REMOTE_AUTO);
if (NS_SUCCEEDED(rv))
cmdline->Run();
nsMemory::Free(uri);
break;
}
case AndroidGeckoEvent::SIZE_CHANGED: {
// store the last resize event to dispatch it to new windows with a FORCED_RESIZE event
if (curEvent != gLastSizeChange) {
gLastSizeChange = new AndroidGeckoEvent(curEvent);
}
nsWindow::OnGlobalAndroidEvent(curEvent);
break;
}
case AndroidGeckoEvent::VISITED: {
#ifdef MOZ_ANDROID_HISTORY
nsAndroidHistory::NotifyURIVisited(nsString(curEvent->Characters()));
#endif
break;
}
case AndroidGeckoEvent::NETWORK_CHANGED: {
hal::NotifyNetworkChange(hal::NetworkInformation(curEvent->Bandwidth(),
curEvent->CanBeMetered()));
break;
}
default:
nsWindow::OnGlobalAndroidEvent(curEvent);
}
EVLOG("nsAppShell: -- done event %p %d", (void*)curEvent.get(), curEvent->Type());
return true;
}