1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/android/nsAppShell.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,796 @@
1.4 +/* -*- Mode: c++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 4; -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsAppShell.h"
1.10 +
1.11 +#include "base/basictypes.h"
1.12 +#include "base/message_loop.h"
1.13 +#include "base/task.h"
1.14 +#include "mozilla/Hal.h"
1.15 +#include "nsIScreen.h"
1.16 +#include "nsIScreenManager.h"
1.17 +#include "nsWindow.h"
1.18 +#include "nsThreadUtils.h"
1.19 +#include "nsICommandLineRunner.h"
1.20 +#include "nsIObserverService.h"
1.21 +#include "nsIAppStartup.h"
1.22 +#include "nsIGeolocationProvider.h"
1.23 +#include "nsCacheService.h"
1.24 +#include "nsIDOMEventListener.h"
1.25 +#include "nsIDOMClientRectList.h"
1.26 +#include "nsIDOMClientRect.h"
1.27 +#include "nsIDOMWakeLockListener.h"
1.28 +#include "nsIPowerManagerService.h"
1.29 +#include "nsFrameManager.h"
1.30 +#include "nsINetworkLinkService.h"
1.31 +
1.32 +#include "mozilla/Services.h"
1.33 +#include "mozilla/unused.h"
1.34 +#include "mozilla/Preferences.h"
1.35 +#include "mozilla/Hal.h"
1.36 +#include "prenv.h"
1.37 +
1.38 +#include "AndroidBridge.h"
1.39 +#include "AndroidBridgeUtilities.h"
1.40 +#include <android/log.h>
1.41 +#include <pthread.h>
1.42 +#include <wchar.h>
1.43 +
1.44 +#include "mozilla/dom/ScreenOrientation.h"
1.45 +
1.46 +#include "GeckoProfiler.h"
1.47 +#ifdef MOZ_ANDROID_HISTORY
1.48 +#include "nsNetUtil.h"
1.49 +#include "IHistory.h"
1.50 +#endif
1.51 +
1.52 +#ifdef MOZ_LOGGING
1.53 +#define FORCE_PR_LOG
1.54 +#include "prlog.h"
1.55 +#endif
1.56 +
1.57 +#ifdef DEBUG_ANDROID_EVENTS
1.58 +#define EVLOG(args...) ALOG(args)
1.59 +#else
1.60 +#define EVLOG(args...) do { } while (0)
1.61 +#endif
1.62 +
1.63 +using namespace mozilla;
1.64 +
1.65 +#ifdef PR_LOGGING
1.66 +PRLogModuleInfo *gWidgetLog = nullptr;
1.67 +#endif
1.68 +
1.69 +nsIGeolocationUpdate *gLocationCallback = nullptr;
1.70 +nsAutoPtr<mozilla::AndroidGeckoEvent> gLastSizeChange;
1.71 +
1.72 +nsAppShell *nsAppShell::gAppShell = nullptr;
1.73 +
1.74 +NS_IMPL_ISUPPORTS_INHERITED(nsAppShell, nsBaseAppShell, nsIObserver)
1.75 +
1.76 +class ThumbnailRunnable : public nsRunnable {
1.77 +public:
1.78 + ThumbnailRunnable(nsIAndroidBrowserApp* aBrowserApp, int aTabId,
1.79 + const nsTArray<nsIntPoint>& aPoints, RefCountedJavaObject* aBuffer):
1.80 + mBrowserApp(aBrowserApp), mPoints(aPoints), mTabId(aTabId), mBuffer(aBuffer) {}
1.81 +
1.82 + virtual nsresult Run() {
1.83 + jobject buffer = mBuffer->GetObject();
1.84 + nsCOMPtr<nsIDOMWindow> domWindow;
1.85 + nsCOMPtr<nsIBrowserTab> tab;
1.86 + mBrowserApp->GetBrowserTab(mTabId, getter_AddRefs(tab));
1.87 + if (!tab) {
1.88 + mozilla::widget::android::ThumbnailHelper::SendThumbnail(buffer, mTabId, false);
1.89 + return NS_ERROR_FAILURE;
1.90 + }
1.91 +
1.92 + tab->GetWindow(getter_AddRefs(domWindow));
1.93 + if (!domWindow) {
1.94 + mozilla::widget::android::ThumbnailHelper::SendThumbnail(buffer, mTabId, false);
1.95 + return NS_ERROR_FAILURE;
1.96 + }
1.97 +
1.98 + NS_ASSERTION(mPoints.Length() == 1, "Thumbnail event does not have enough coordinates");
1.99 +
1.100 + nsresult rv = AndroidBridge::Bridge()->CaptureThumbnail(domWindow, mPoints[0].x, mPoints[0].y, mTabId, buffer);
1.101 + mozilla::widget::android::ThumbnailHelper::SendThumbnail(buffer, mTabId, NS_SUCCEEDED(rv));
1.102 + return rv;
1.103 + }
1.104 +private:
1.105 + nsCOMPtr<nsIAndroidBrowserApp> mBrowserApp;
1.106 + nsTArray<nsIntPoint> mPoints;
1.107 + int mTabId;
1.108 + nsRefPtr<RefCountedJavaObject> mBuffer;
1.109 +};
1.110 +
1.111 +class WakeLockListener MOZ_FINAL : public nsIDOMMozWakeLockListener {
1.112 + public:
1.113 + NS_DECL_ISUPPORTS;
1.114 +
1.115 + nsresult Callback(const nsAString& topic, const nsAString& state) {
1.116 + mozilla::widget::android::GeckoAppShell::NotifyWakeLockChanged(topic, state);
1.117 + return NS_OK;
1.118 + }
1.119 +};
1.120 +
1.121 +NS_IMPL_ISUPPORTS(WakeLockListener, nsIDOMMozWakeLockListener)
1.122 +nsCOMPtr<nsIPowerManagerService> sPowerManagerService = nullptr;
1.123 +StaticRefPtr<WakeLockListener> sWakeLockListener;
1.124 +
1.125 +nsAppShell::nsAppShell()
1.126 + : mQueueLock("nsAppShell.mQueueLock"),
1.127 + mCondLock("nsAppShell.mCondLock"),
1.128 + mQueueCond(mCondLock, "nsAppShell.mQueueCond"),
1.129 + mQueuedDrawEvent(nullptr),
1.130 + mQueuedViewportEvent(nullptr),
1.131 + mAllowCoalescingNextDraw(false)
1.132 +{
1.133 + gAppShell = this;
1.134 +
1.135 + if (XRE_GetProcessType() != GeckoProcessType_Default) {
1.136 + return;
1.137 + }
1.138 +
1.139 + sPowerManagerService = do_GetService(POWERMANAGERSERVICE_CONTRACTID);
1.140 +
1.141 + if (sPowerManagerService) {
1.142 + sWakeLockListener = new WakeLockListener();
1.143 + } else {
1.144 + NS_WARNING("Failed to retrieve PowerManagerService, wakelocks will be broken!");
1.145 + }
1.146 +
1.147 +}
1.148 +
1.149 +nsAppShell::~nsAppShell()
1.150 +{
1.151 + gAppShell = nullptr;
1.152 +
1.153 + if (sPowerManagerService) {
1.154 + sPowerManagerService->RemoveWakeLockListener(sWakeLockListener);
1.155 +
1.156 + sPowerManagerService = nullptr;
1.157 + sWakeLockListener = nullptr;
1.158 + }
1.159 +}
1.160 +
1.161 +void
1.162 +nsAppShell::NotifyNativeEvent()
1.163 +{
1.164 + MutexAutoLock lock(mCondLock);
1.165 + mQueueCond.Notify();
1.166 +}
1.167 +
1.168 +#define PREFNAME_COALESCE_TOUCHES "dom.event.touch.coalescing.enabled"
1.169 +static const char* kObservedPrefs[] = {
1.170 + PREFNAME_COALESCE_TOUCHES,
1.171 + nullptr
1.172 +};
1.173 +
1.174 +nsresult
1.175 +nsAppShell::Init()
1.176 +{
1.177 +#ifdef PR_LOGGING
1.178 + if (!gWidgetLog)
1.179 + gWidgetLog = PR_NewLogModule("Widget");
1.180 +#endif
1.181 +
1.182 + nsresult rv = nsBaseAppShell::Init();
1.183 + nsCOMPtr<nsIObserverService> obsServ =
1.184 + mozilla::services::GetObserverService();
1.185 + if (obsServ) {
1.186 + obsServ->AddObserver(this, "xpcom-shutdown", false);
1.187 + }
1.188 +
1.189 + if (sPowerManagerService)
1.190 + sPowerManagerService->AddWakeLockListener(sWakeLockListener);
1.191 +
1.192 + Preferences::AddStrongObservers(this, kObservedPrefs);
1.193 + mAllowCoalescingTouches = Preferences::GetBool(PREFNAME_COALESCE_TOUCHES, true);
1.194 + return rv;
1.195 +}
1.196 +
1.197 +NS_IMETHODIMP
1.198 +nsAppShell::Observe(nsISupports* aSubject,
1.199 + const char* aTopic,
1.200 + const char16_t* aData)
1.201 +{
1.202 + if (!strcmp(aTopic, "xpcom-shutdown")) {
1.203 + // We need to ensure no observers stick around after XPCOM shuts down
1.204 + // or we'll see crashes, as the app shell outlives XPConnect.
1.205 + mObserversHash.Clear();
1.206 + return nsBaseAppShell::Observe(aSubject, aTopic, aData);
1.207 + } else if (!strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID) &&
1.208 + aData &&
1.209 + nsDependentString(aData).Equals(NS_LITERAL_STRING(PREFNAME_COALESCE_TOUCHES))) {
1.210 + mAllowCoalescingTouches = Preferences::GetBool(PREFNAME_COALESCE_TOUCHES, true);
1.211 + return NS_OK;
1.212 + }
1.213 + return NS_OK;
1.214 +}
1.215 +
1.216 +void
1.217 +nsAppShell::ScheduleNativeEventCallback()
1.218 +{
1.219 + EVLOG("nsAppShell::ScheduleNativeEventCallback pth: %p thread: %p main: %d", (void*) pthread_self(), (void*) NS_GetCurrentThread(), NS_IsMainThread());
1.220 +
1.221 + // this is valid to be called from any thread, so do so.
1.222 + PostEvent(AndroidGeckoEvent::MakeNativePoke());
1.223 +}
1.224 +
1.225 +bool
1.226 +nsAppShell::ProcessNextNativeEvent(bool mayWait)
1.227 +{
1.228 + EVLOG("nsAppShell::ProcessNextNativeEvent %d", mayWait);
1.229 +
1.230 + PROFILER_LABEL("nsAppShell", "ProcessNextNativeEvent");
1.231 + nsAutoPtr<AndroidGeckoEvent> curEvent;
1.232 + {
1.233 + MutexAutoLock lock(mCondLock);
1.234 +
1.235 + curEvent = PopNextEvent();
1.236 + if (!curEvent && mayWait) {
1.237 + PROFILER_LABEL("nsAppShell::ProcessNextNativeEvent", "Wait");
1.238 + // hmm, should we really hardcode this 10s?
1.239 +#if defined(DEBUG_ANDROID_EVENTS)
1.240 + PRTime t0, t1;
1.241 + EVLOG("nsAppShell: waiting on mQueueCond");
1.242 + t0 = PR_Now();
1.243 + mQueueCond.Wait(PR_MillisecondsToInterval(10000));
1.244 + t1 = PR_Now();
1.245 + EVLOG("nsAppShell: wait done, waited %d ms", (int)(t1-t0)/1000);
1.246 +#else
1.247 + mQueueCond.Wait();
1.248 +#endif
1.249 +
1.250 + curEvent = PopNextEvent();
1.251 + }
1.252 + }
1.253 +
1.254 + if (!curEvent)
1.255 + return false;
1.256 +
1.257 + EVLOG("nsAppShell: event %p %d", (void*)curEvent.get(), curEvent->Type());
1.258 +
1.259 + switch (curEvent->Type()) {
1.260 + case AndroidGeckoEvent::NATIVE_POKE:
1.261 + NativeEventCallback();
1.262 + break;
1.263 +
1.264 + case AndroidGeckoEvent::SENSOR_EVENT: {
1.265 + InfallibleTArray<float> values;
1.266 + mozilla::hal::SensorType type = (mozilla::hal::SensorType) curEvent->Flags();
1.267 +
1.268 + switch (type) {
1.269 + // Bug 938035, transfer HAL data for orientation sensor to meet w3c
1.270 + // spec, ex: HAL report alpha=90 means East but alpha=90 means West
1.271 + // in w3c spec
1.272 + case hal::SENSOR_ORIENTATION:
1.273 + values.AppendElement(360 -curEvent->X());
1.274 + values.AppendElement(-curEvent->Y());
1.275 + values.AppendElement(-curEvent->Z());
1.276 + break;
1.277 + case hal::SENSOR_LINEAR_ACCELERATION:
1.278 + case hal::SENSOR_ACCELERATION:
1.279 + case hal::SENSOR_GYROSCOPE:
1.280 + case hal::SENSOR_PROXIMITY:
1.281 + values.AppendElement(curEvent->X());
1.282 + values.AppendElement(curEvent->Y());
1.283 + values.AppendElement(curEvent->Z());
1.284 + break;
1.285 +
1.286 + case hal::SENSOR_LIGHT:
1.287 + values.AppendElement(curEvent->X());
1.288 + break;
1.289 +
1.290 + default:
1.291 + __android_log_print(ANDROID_LOG_ERROR,
1.292 + "Gecko", "### SENSOR_EVENT fired, but type wasn't known %d",
1.293 + type);
1.294 + }
1.295 +
1.296 + const hal::SensorAccuracyType &accuracy = (hal::SensorAccuracyType) curEvent->MetaState();
1.297 + hal::SensorData sdata(type, PR_Now(), values, accuracy);
1.298 + hal::NotifySensorChange(sdata);
1.299 + }
1.300 + break;
1.301 +
1.302 + case AndroidGeckoEvent::LOCATION_EVENT: {
1.303 + if (!gLocationCallback)
1.304 + break;
1.305 +
1.306 + nsGeoPosition* p = curEvent->GeoPosition();
1.307 + if (p)
1.308 + gLocationCallback->Update(curEvent->GeoPosition());
1.309 + else
1.310 + NS_WARNING("Received location event without geoposition!");
1.311 + break;
1.312 + }
1.313 +
1.314 + case AndroidGeckoEvent::APP_BACKGROUNDING: {
1.315 + nsCOMPtr<nsIObserverService> obsServ =
1.316 + mozilla::services::GetObserverService();
1.317 + obsServ->NotifyObservers(nullptr, "application-background", nullptr);
1.318 +
1.319 + NS_NAMED_LITERAL_STRING(minimize, "heap-minimize");
1.320 + obsServ->NotifyObservers(nullptr, "memory-pressure", minimize.get());
1.321 +
1.322 + // If we are OOM killed with the disk cache enabled, the entire
1.323 + // cache will be cleared (bug 105843), so shut down the cache here
1.324 + // and re-init on foregrounding
1.325 + if (nsCacheService::GlobalInstance()) {
1.326 + nsCacheService::GlobalInstance()->Shutdown();
1.327 + }
1.328 +
1.329 + // We really want to send a notification like profile-before-change,
1.330 + // but profile-before-change ends up shutting some things down instead
1.331 + // of flushing data
1.332 + nsIPrefService* prefs = Preferences::GetService();
1.333 + if (prefs) {
1.334 + // reset the crash loop state
1.335 + nsCOMPtr<nsIPrefBranch> prefBranch;
1.336 + prefs->GetBranch("browser.sessionstore.", getter_AddRefs(prefBranch));
1.337 + if (prefBranch)
1.338 + prefBranch->SetIntPref("recent_crashes", 0);
1.339 +
1.340 + prefs->SavePrefFile(nullptr);
1.341 + }
1.342 + break;
1.343 + }
1.344 +
1.345 + case AndroidGeckoEvent::APP_FOREGROUNDING: {
1.346 + // If we are OOM killed with the disk cache enabled, the entire
1.347 + // cache will be cleared (bug 105843), so shut down cache on backgrounding
1.348 + // and re-init here
1.349 + if (nsCacheService::GlobalInstance()) {
1.350 + nsCacheService::GlobalInstance()->Init();
1.351 + }
1.352 +
1.353 + // We didn't return from one of our own activities, so restore
1.354 + // to foreground status
1.355 + nsCOMPtr<nsIObserverService> obsServ =
1.356 + mozilla::services::GetObserverService();
1.357 + obsServ->NotifyObservers(nullptr, "application-foreground", nullptr);
1.358 + break;
1.359 + }
1.360 +
1.361 + case AndroidGeckoEvent::THUMBNAIL: {
1.362 + if (!mBrowserApp)
1.363 + break;
1.364 +
1.365 + int32_t tabId = curEvent->MetaState();
1.366 + const nsTArray<nsIntPoint>& points = curEvent->Points();
1.367 + RefCountedJavaObject* buffer = curEvent->ByteBuffer();
1.368 + nsRefPtr<ThumbnailRunnable> sr = new ThumbnailRunnable(mBrowserApp, tabId, points, buffer);
1.369 + MessageLoop::current()->PostIdleTask(FROM_HERE, NewRunnableMethod(sr.get(), &ThumbnailRunnable::Run));
1.370 + break;
1.371 + }
1.372 +
1.373 + case AndroidGeckoEvent::VIEWPORT:
1.374 + case AndroidGeckoEvent::BROADCAST: {
1.375 + if (curEvent->Characters().Length() == 0)
1.376 + break;
1.377 +
1.378 + nsCOMPtr<nsIObserverService> obsServ =
1.379 + mozilla::services::GetObserverService();
1.380 +
1.381 + const NS_ConvertUTF16toUTF8 topic(curEvent->Characters());
1.382 + const nsPromiseFlatString& data = PromiseFlatString(curEvent->CharactersExtra());
1.383 +
1.384 + obsServ->NotifyObservers(nullptr, topic.get(), data.get());
1.385 + break;
1.386 + }
1.387 +
1.388 + case AndroidGeckoEvent::TELEMETRY_UI_SESSION_STOP: {
1.389 + if (curEvent->Characters().Length() == 0)
1.390 + break;
1.391 +
1.392 + nsCOMPtr<nsIUITelemetryObserver> obs;
1.393 + mBrowserApp->GetUITelemetryObserver(getter_AddRefs(obs));
1.394 + if (!obs)
1.395 + break;
1.396 +
1.397 + obs->StopSession(
1.398 + nsString(curEvent->Characters()).get(),
1.399 + nsString(curEvent->CharactersExtra()).get(),
1.400 + curEvent->Time()
1.401 + );
1.402 + break;
1.403 + }
1.404 +
1.405 + case AndroidGeckoEvent::TELEMETRY_UI_SESSION_START: {
1.406 + if (curEvent->Characters().Length() == 0)
1.407 + break;
1.408 +
1.409 + nsCOMPtr<nsIUITelemetryObserver> obs;
1.410 + mBrowserApp->GetUITelemetryObserver(getter_AddRefs(obs));
1.411 + if (!obs)
1.412 + break;
1.413 +
1.414 + obs->StartSession(
1.415 + nsString(curEvent->Characters()).get(),
1.416 + curEvent->Time()
1.417 + );
1.418 + break;
1.419 + }
1.420 +
1.421 + case AndroidGeckoEvent::TELEMETRY_UI_EVENT: {
1.422 + if (curEvent->Data().Length() == 0)
1.423 + break;
1.424 +
1.425 + nsCOMPtr<nsIUITelemetryObserver> obs;
1.426 + mBrowserApp->GetUITelemetryObserver(getter_AddRefs(obs));
1.427 + if (!obs)
1.428 + break;
1.429 +
1.430 + obs->AddEvent(
1.431 + nsString(curEvent->Data()).get(),
1.432 + nsString(curEvent->Characters()).get(),
1.433 + curEvent->Time(),
1.434 + nsString(curEvent->CharactersExtra()).get()
1.435 + );
1.436 + break;
1.437 + }
1.438 +
1.439 + case AndroidGeckoEvent::LOAD_URI: {
1.440 + nsCOMPtr<nsICommandLineRunner> cmdline
1.441 + (do_CreateInstance("@mozilla.org/toolkit/command-line;1"));
1.442 + if (!cmdline)
1.443 + break;
1.444 +
1.445 + if (curEvent->Characters().Length() == 0)
1.446 + break;
1.447 +
1.448 + char *uri = ToNewUTF8String(curEvent->Characters());
1.449 + if (!uri)
1.450 + break;
1.451 +
1.452 + char *flag = ToNewUTF8String(curEvent->CharactersExtra());
1.453 +
1.454 + const char *argv[4] = {
1.455 + "dummyappname",
1.456 + "-url",
1.457 + uri,
1.458 + flag ? flag : ""
1.459 + };
1.460 + nsresult rv = cmdline->Init(4, argv, nullptr, nsICommandLine::STATE_REMOTE_AUTO);
1.461 + if (NS_SUCCEEDED(rv))
1.462 + cmdline->Run();
1.463 + nsMemory::Free(uri);
1.464 + if (flag)
1.465 + nsMemory::Free(flag);
1.466 + break;
1.467 + }
1.468 +
1.469 + case AndroidGeckoEvent::SIZE_CHANGED: {
1.470 + // store the last resize event to dispatch it to new windows with a FORCED_RESIZE event
1.471 + if (curEvent != gLastSizeChange) {
1.472 + gLastSizeChange = AndroidGeckoEvent::CopyResizeEvent(curEvent);
1.473 + }
1.474 + nsWindow::OnGlobalAndroidEvent(curEvent);
1.475 + break;
1.476 + }
1.477 +
1.478 + case AndroidGeckoEvent::VISITED: {
1.479 +#ifdef MOZ_ANDROID_HISTORY
1.480 + nsCOMPtr<IHistory> history = services::GetHistoryService();
1.481 + nsCOMPtr<nsIURI> visitedURI;
1.482 + if (history &&
1.483 + NS_SUCCEEDED(NS_NewURI(getter_AddRefs(visitedURI),
1.484 + nsString(curEvent->Characters())))) {
1.485 + history->NotifyVisited(visitedURI);
1.486 + }
1.487 +#endif
1.488 + break;
1.489 + }
1.490 +
1.491 + case AndroidGeckoEvent::NETWORK_CHANGED: {
1.492 + hal::NotifyNetworkChange(hal::NetworkInformation(curEvent->ConnectionType(),
1.493 + curEvent->IsWifi(),
1.494 + curEvent->DHCPGateway()));
1.495 + break;
1.496 + }
1.497 +
1.498 + case AndroidGeckoEvent::SCREENORIENTATION_CHANGED: {
1.499 + nsresult rv;
1.500 + nsCOMPtr<nsIScreenManager> screenMgr =
1.501 + do_GetService("@mozilla.org/gfx/screenmanager;1", &rv);
1.502 + if (NS_FAILED(rv)) {
1.503 + NS_ERROR("Can't find nsIScreenManager!");
1.504 + break;
1.505 + }
1.506 +
1.507 + nsIntRect rect;
1.508 + int32_t colorDepth, pixelDepth;
1.509 + dom::ScreenOrientation orientation;
1.510 + nsCOMPtr<nsIScreen> screen;
1.511 +
1.512 + screenMgr->GetPrimaryScreen(getter_AddRefs(screen));
1.513 + screen->GetRect(&rect.x, &rect.y, &rect.width, &rect.height);
1.514 + screen->GetColorDepth(&colorDepth);
1.515 + screen->GetPixelDepth(&pixelDepth);
1.516 + orientation =
1.517 + static_cast<dom::ScreenOrientation>(curEvent->ScreenOrientation());
1.518 +
1.519 + hal::NotifyScreenConfigurationChange(
1.520 + hal::ScreenConfiguration(rect, orientation, colorDepth, pixelDepth));
1.521 + break;
1.522 + }
1.523 +
1.524 + case AndroidGeckoEvent::CALL_OBSERVER:
1.525 + {
1.526 + nsCOMPtr<nsIObserver> observer;
1.527 + mObserversHash.Get(curEvent->Characters(), getter_AddRefs(observer));
1.528 +
1.529 + if (observer) {
1.530 + observer->Observe(nullptr, NS_ConvertUTF16toUTF8(curEvent->CharactersExtra()).get(),
1.531 + nsString(curEvent->Data()).get());
1.532 + } else {
1.533 + ALOG("Call_Observer event: Observer was not found!");
1.534 + }
1.535 +
1.536 + break;
1.537 + }
1.538 +
1.539 + case AndroidGeckoEvent::REMOVE_OBSERVER:
1.540 + mObserversHash.Remove(curEvent->Characters());
1.541 + break;
1.542 +
1.543 + case AndroidGeckoEvent::ADD_OBSERVER:
1.544 + AddObserver(curEvent->Characters(), curEvent->Observer());
1.545 + break;
1.546 +
1.547 + case AndroidGeckoEvent::PREFERENCES_GET:
1.548 + case AndroidGeckoEvent::PREFERENCES_OBSERVE: {
1.549 + const nsTArray<nsString> &prefNames = curEvent->PrefNames();
1.550 + size_t count = prefNames.Length();
1.551 + nsAutoArrayPtr<const char16_t*> prefNamePtrs(new const char16_t*[count]);
1.552 + for (size_t i = 0; i < count; ++i) {
1.553 + prefNamePtrs[i] = prefNames[i].get();
1.554 + }
1.555 +
1.556 + if (curEvent->Type() == AndroidGeckoEvent::PREFERENCES_GET) {
1.557 + mBrowserApp->GetPreferences(curEvent->RequestId(), prefNamePtrs, count);
1.558 + } else {
1.559 + mBrowserApp->ObservePreferences(curEvent->RequestId(), prefNamePtrs, count);
1.560 + }
1.561 + break;
1.562 + }
1.563 +
1.564 + case AndroidGeckoEvent::PREFERENCES_REMOVE_OBSERVERS:
1.565 + mBrowserApp->RemovePreferenceObservers(curEvent->RequestId());
1.566 + break;
1.567 +
1.568 + case AndroidGeckoEvent::LOW_MEMORY:
1.569 + // TODO hook in memory-reduction stuff for different levels here
1.570 + if (curEvent->MetaState() >= AndroidGeckoEvent::MEMORY_PRESSURE_MEDIUM) {
1.571 + nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
1.572 + if (os) {
1.573 + os->NotifyObservers(nullptr,
1.574 + "memory-pressure",
1.575 + MOZ_UTF16("low-memory"));
1.576 + }
1.577 + }
1.578 + break;
1.579 +
1.580 + case AndroidGeckoEvent::NETWORK_LINK_CHANGE:
1.581 + {
1.582 + nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
1.583 + if (os) {
1.584 + os->NotifyObservers(nullptr,
1.585 + NS_NETWORK_LINK_TOPIC,
1.586 + nsString(curEvent->Characters()).get());
1.587 + }
1.588 + break;
1.589 + }
1.590 +
1.591 + case AndroidGeckoEvent::TELEMETRY_HISTOGRAM_ADD:
1.592 + Telemetry::Accumulate(NS_ConvertUTF16toUTF8(curEvent->Characters()).get(),
1.593 + curEvent->Count());
1.594 + break;
1.595 +
1.596 + case AndroidGeckoEvent::NOOP:
1.597 + break;
1.598 +
1.599 + default:
1.600 + nsWindow::OnGlobalAndroidEvent(curEvent);
1.601 + break;
1.602 + }
1.603 +
1.604 + if (curEvent->AckNeeded()) {
1.605 + mozilla::widget::android::GeckoAppShell::AcknowledgeEvent();
1.606 + }
1.607 +
1.608 + EVLOG("nsAppShell: -- done event %p %d", (void*)curEvent.get(), curEvent->Type());
1.609 +
1.610 + return true;
1.611 +}
1.612 +
1.613 +void
1.614 +nsAppShell::ResendLastResizeEvent(nsWindow* aDest) {
1.615 + if (gLastSizeChange) {
1.616 + nsWindow::OnGlobalAndroidEvent(gLastSizeChange);
1.617 + }
1.618 +}
1.619 +
1.620 +AndroidGeckoEvent*
1.621 +nsAppShell::PopNextEvent()
1.622 +{
1.623 + AndroidGeckoEvent *ae = nullptr;
1.624 + MutexAutoLock lock(mQueueLock);
1.625 + if (mEventQueue.Length()) {
1.626 + ae = mEventQueue[0];
1.627 + mEventQueue.RemoveElementAt(0);
1.628 + if (mQueuedDrawEvent == ae) {
1.629 + mQueuedDrawEvent = nullptr;
1.630 + } else if (mQueuedViewportEvent == ae) {
1.631 + mQueuedViewportEvent = nullptr;
1.632 + }
1.633 + }
1.634 +
1.635 + return ae;
1.636 +}
1.637 +
1.638 +AndroidGeckoEvent*
1.639 +nsAppShell::PeekNextEvent()
1.640 +{
1.641 + AndroidGeckoEvent *ae = nullptr;
1.642 + MutexAutoLock lock(mQueueLock);
1.643 + if (mEventQueue.Length()) {
1.644 + ae = mEventQueue[0];
1.645 + }
1.646 +
1.647 + return ae;
1.648 +}
1.649 +
1.650 +void
1.651 +nsAppShell::PostEvent(AndroidGeckoEvent *ae)
1.652 +{
1.653 + {
1.654 + // set this to true when inserting events that we can coalesce
1.655 + // viewport events across. this is effectively maintaining a whitelist
1.656 + // of events that are unaffected by viewport changes.
1.657 + bool allowCoalescingNextViewport = false;
1.658 +
1.659 + MutexAutoLock lock(mQueueLock);
1.660 + EVLOG("nsAppShell::PostEvent %p %d", ae, ae->Type());
1.661 + switch (ae->Type()) {
1.662 + case AndroidGeckoEvent::COMPOSITOR_CREATE:
1.663 + case AndroidGeckoEvent::COMPOSITOR_PAUSE:
1.664 + case AndroidGeckoEvent::COMPOSITOR_RESUME:
1.665 + // Give priority to these events, but maintain their order wrt each other.
1.666 + {
1.667 + uint32_t i = 0;
1.668 + while (i < mEventQueue.Length() &&
1.669 + (mEventQueue[i]->Type() == AndroidGeckoEvent::COMPOSITOR_CREATE ||
1.670 + mEventQueue[i]->Type() == AndroidGeckoEvent::COMPOSITOR_PAUSE ||
1.671 + mEventQueue[i]->Type() == AndroidGeckoEvent::COMPOSITOR_RESUME)) {
1.672 + i++;
1.673 + }
1.674 + EVLOG("nsAppShell: Inserting compositor event %d at position %d to maintain priority order", ae->Type(), i);
1.675 + mEventQueue.InsertElementAt(i, ae);
1.676 + }
1.677 + break;
1.678 +
1.679 + case AndroidGeckoEvent::DRAW:
1.680 + if (mQueuedDrawEvent) {
1.681 +#if defined(DEBUG) || defined(FORCE_ALOG)
1.682 + // coalesce this new draw event with the one already in the queue
1.683 + const nsIntRect& oldRect = mQueuedDrawEvent->Rect();
1.684 + const nsIntRect& newRect = ae->Rect();
1.685 + nsIntRect combinedRect = oldRect.Union(newRect);
1.686 +
1.687 + // XXX We may want to consider using regions instead of rectangles.
1.688 + // Print an error if we're upload a lot more than we would
1.689 + // if we handled this as two separate events.
1.690 + int combinedArea = (oldRect.width * oldRect.height) +
1.691 + (newRect.width * newRect.height);
1.692 + int boundsArea = combinedRect.width * combinedRect.height;
1.693 + if (boundsArea > combinedArea * 8)
1.694 + ALOG("nsAppShell: Area of bounds greatly exceeds combined area: %d > %d",
1.695 + boundsArea, combinedArea);
1.696 +#endif
1.697 +
1.698 + // coalesce into the new draw event rather than the queued one because
1.699 + // it is not always safe to move draws earlier in the queue; there may
1.700 + // be events between the two draws that affect scroll position or something.
1.701 + ae->UnionRect(mQueuedDrawEvent->Rect());
1.702 +
1.703 + EVLOG("nsAppShell: Coalescing previous DRAW event at %p into new DRAW event %p", mQueuedDrawEvent, ae);
1.704 + mEventQueue.RemoveElement(mQueuedDrawEvent);
1.705 + delete mQueuedDrawEvent;
1.706 + }
1.707 +
1.708 + if (!mAllowCoalescingNextDraw) {
1.709 + // if we're not allowing coalescing of this draw event, then
1.710 + // don't set mQueuedDrawEvent to point to this; that way the
1.711 + // next draw event that comes in won't kill this one.
1.712 + mAllowCoalescingNextDraw = true;
1.713 + mQueuedDrawEvent = nullptr;
1.714 + } else {
1.715 + mQueuedDrawEvent = ae;
1.716 + }
1.717 +
1.718 + allowCoalescingNextViewport = true;
1.719 +
1.720 + mEventQueue.AppendElement(ae);
1.721 + break;
1.722 +
1.723 + case AndroidGeckoEvent::VIEWPORT:
1.724 + if (mQueuedViewportEvent) {
1.725 + // drop the previous viewport event now that we have a new one
1.726 + EVLOG("nsAppShell: Dropping old viewport event at %p in favour of new VIEWPORT event %p", mQueuedViewportEvent, ae);
1.727 + mEventQueue.RemoveElement(mQueuedViewportEvent);
1.728 + delete mQueuedViewportEvent;
1.729 + }
1.730 + mQueuedViewportEvent = ae;
1.731 + // temporarily turn off draw-coalescing, so that we process a draw
1.732 + // event as soon as possible after a viewport change
1.733 + mAllowCoalescingNextDraw = false;
1.734 + allowCoalescingNextViewport = true;
1.735 +
1.736 + mEventQueue.AppendElement(ae);
1.737 + break;
1.738 +
1.739 + case AndroidGeckoEvent::MOTION_EVENT:
1.740 + if (ae->Action() == AndroidMotionEvent::ACTION_MOVE && mAllowCoalescingTouches) {
1.741 + int len = mEventQueue.Length();
1.742 + if (len > 0) {
1.743 + AndroidGeckoEvent* event = mEventQueue[len - 1];
1.744 + if (event->Type() == AndroidGeckoEvent::MOTION_EVENT && event->Action() == AndroidMotionEvent::ACTION_MOVE) {
1.745 + // consecutive motion-move events; drop the last one before adding the new one
1.746 + EVLOG("nsAppShell: Dropping old move event at %p in favour of new move event %p", event, ae);
1.747 + mEventQueue.RemoveElementAt(len - 1);
1.748 + delete event;
1.749 + }
1.750 + }
1.751 + }
1.752 + mEventQueue.AppendElement(ae);
1.753 + break;
1.754 +
1.755 + case AndroidGeckoEvent::NATIVE_POKE:
1.756 + allowCoalescingNextViewport = true;
1.757 + // fall through
1.758 +
1.759 + default:
1.760 + mEventQueue.AppendElement(ae);
1.761 + break;
1.762 + }
1.763 +
1.764 + // if the event wasn't on our whitelist then reset mQueuedViewportEvent
1.765 + // so that we don't coalesce future viewport events into the last viewport
1.766 + // event we added
1.767 + if (!allowCoalescingNextViewport)
1.768 + mQueuedViewportEvent = nullptr;
1.769 + }
1.770 + NotifyNativeEvent();
1.771 +}
1.772 +
1.773 +void
1.774 +nsAppShell::OnResume()
1.775 +{
1.776 +}
1.777 +
1.778 +nsresult
1.779 +nsAppShell::AddObserver(const nsAString &aObserverKey, nsIObserver *aObserver)
1.780 +{
1.781 + NS_ASSERTION(aObserver != nullptr, "nsAppShell::AddObserver: aObserver is null!");
1.782 + mObserversHash.Put(aObserverKey, aObserver);
1.783 + return NS_OK;
1.784 +}
1.785 +
1.786 +// Used by IPC code
1.787 +namespace mozilla {
1.788 +
1.789 +bool ProcessNextEvent()
1.790 +{
1.791 + return nsAppShell::gAppShell->ProcessNextNativeEvent(true) ? true : false;
1.792 +}
1.793 +
1.794 +void NotifyEvent()
1.795 +{
1.796 + nsAppShell::gAppShell->NotifyNativeEvent();
1.797 +}
1.798 +
1.799 +}
