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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /widget/android/nsAppShell.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'widget/android/nsAppShell.h')
-rw-r--r--widget/android/nsAppShell.h223
1 files changed, 223 insertions, 0 deletions
diff --git a/widget/android/nsAppShell.h b/widget/android/nsAppShell.h
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+/* -*- Mode: c++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 4; -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsAppShell_h__
+#define nsAppShell_h__
+
+#include "mozilla/HangMonitor.h"
+#include "mozilla/LinkedList.h"
+#include "mozilla/Monitor.h"
+#include "mozilla/Move.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Unused.h"
+#include "mozilla/jni/Natives.h"
+#include "nsBaseAppShell.h"
+#include "nsCOMPtr.h"
+#include "nsTArray.h"
+#include "nsInterfaceHashtable.h"
+#include "nsIAndroidBridge.h"
+
+namespace mozilla {
+bool ProcessNextEvent();
+void NotifyEvent();
+}
+
+class nsWindow;
+
+class nsAppShell :
+ public nsBaseAppShell
+{
+public:
+ struct Event : mozilla::LinkedListElement<Event>
+ {
+ typedef mozilla::HangMonitor::ActivityType Type;
+
+ bool HasSameTypeAs(const Event* other) const
+ {
+ // Compare vtable addresses to determine same type.
+ return *reinterpret_cast<const uintptr_t*>(this)
+ == *reinterpret_cast<const uintptr_t*>(other);
+ }
+
+ virtual ~Event() {}
+ virtual void Run() = 0;
+
+ virtual void PostTo(mozilla::LinkedList<Event>& queue)
+ {
+ queue.insertBack(this);
+ }
+
+ virtual Type ActivityType() const
+ {
+ return Type::kGeneralActivity;
+ }
+ };
+
+ template<typename T>
+ class LambdaEvent : public Event
+ {
+ protected:
+ T lambda;
+
+ public:
+ LambdaEvent(T&& l) : lambda(mozilla::Move(l)) {}
+ void Run() override { return lambda(); }
+ };
+
+ class ProxyEvent : public Event
+ {
+ protected:
+ mozilla::UniquePtr<Event> baseEvent;
+
+ public:
+ ProxyEvent(mozilla::UniquePtr<Event>&& event)
+ : baseEvent(mozilla::Move(event))
+ {}
+
+ void PostTo(mozilla::LinkedList<Event>& queue) override
+ {
+ baseEvent->PostTo(queue);
+ }
+
+ void Run() override
+ {
+ baseEvent->Run();
+ }
+ };
+
+ static nsAppShell* Get()
+ {
+ MOZ_ASSERT(NS_IsMainThread());
+ return sAppShell;
+ }
+
+ nsAppShell();
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_NSIOBSERVER
+
+ nsresult Init();
+
+ void NotifyNativeEvent();
+ bool ProcessNextNativeEvent(bool mayWait) override;
+
+ // Post a subclass of Event.
+ // e.g. PostEvent(mozilla::MakeUnique<MyEvent>());
+ template<typename T, typename D>
+ static void PostEvent(mozilla::UniquePtr<T, D>&& event)
+ {
+ mozilla::MutexAutoLock lock(*sAppShellLock);
+ if (!sAppShell) {
+ return;
+ }
+ sAppShell->mEventQueue.Post(mozilla::Move(event));
+ }
+
+ // Post a event that will call a lambda
+ // e.g. PostEvent([=] { /* do something */ });
+ template<typename T>
+ static void PostEvent(T&& lambda)
+ {
+ mozilla::MutexAutoLock lock(*sAppShellLock);
+ if (!sAppShell) {
+ return;
+ }
+ sAppShell->mEventQueue.Post(mozilla::MakeUnique<LambdaEvent<T>>(
+ mozilla::Move(lambda)));
+ }
+
+ // Post a event and wait for it to finish running on the Gecko thread.
+ static void SyncRunEvent(Event&& event,
+ mozilla::UniquePtr<Event>(*eventFactory)(
+ mozilla::UniquePtr<Event>&&) = nullptr);
+
+ static already_AddRefed<nsIURI> ResolveURI(const nsCString& aUriStr);
+
+ void SetBrowserApp(nsIAndroidBrowserApp* aBrowserApp) {
+ mBrowserApp = aBrowserApp;
+ }
+
+ nsIAndroidBrowserApp* GetBrowserApp() {
+ return mBrowserApp;
+ }
+
+protected:
+ static nsAppShell* sAppShell;
+ static mozilla::StaticAutoPtr<mozilla::Mutex> sAppShellLock;
+
+ virtual ~nsAppShell();
+
+ nsresult AddObserver(const nsAString &aObserverKey, nsIObserver *aObserver);
+
+ class NativeCallbackEvent : public Event
+ {
+ // Capturing the nsAppShell instance is safe because if the app
+ // shell is detroyed, this lambda will not be called either.
+ nsAppShell* const appShell;
+
+ public:
+ NativeCallbackEvent(nsAppShell* as) : appShell(as) {}
+ void Run() override { appShell->NativeEventCallback(); }
+ };
+
+ void ScheduleNativeEventCallback() override
+ {
+ mEventQueue.Post(mozilla::MakeUnique<NativeCallbackEvent>(this));
+ }
+
+ class Queue
+ {
+ private:
+ mozilla::Monitor mMonitor;
+ mozilla::LinkedList<Event> mQueue;
+
+ public:
+ Queue() : mMonitor("nsAppShell.Queue")
+ {}
+
+ void Signal()
+ {
+ mozilla::MonitorAutoLock lock(mMonitor);
+ lock.NotifyAll();
+ }
+
+ void Post(mozilla::UniquePtr<Event>&& event)
+ {
+ MOZ_ASSERT(event && !event->isInList());
+
+ mozilla::MonitorAutoLock lock(mMonitor);
+ event->PostTo(mQueue);
+ if (event->isInList()) {
+ // Ownership of event object transfers to the queue.
+ mozilla::Unused << event.release();
+ }
+ lock.NotifyAll();
+ }
+
+ mozilla::UniquePtr<Event> Pop(bool mayWait)
+ {
+ mozilla::MonitorAutoLock lock(mMonitor);
+
+ if (mayWait && mQueue.isEmpty()) {
+ lock.Wait();
+ }
+ // Ownership of event object transfers to the return value.
+ return mozilla::UniquePtr<Event>(mQueue.popFirst());
+ }
+
+ } mEventQueue;
+
+ mozilla::CondVar mSyncRunFinished;
+ bool mSyncRunQuit;
+
+ bool mAllowCoalescingTouches;
+
+ nsCOMPtr<nsIAndroidBrowserApp> mBrowserApp;
+ nsInterfaceHashtable<nsStringHashKey, nsIObserver> mObserversHash;
+};
+
+#endif // nsAppShell_h__
+