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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /dom/gamepad/ipc/GamepadEventChannelParent.cpp | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/gamepad/ipc/GamepadEventChannelParent.cpp')
-rw-r--r-- | dom/gamepad/ipc/GamepadEventChannelParent.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/dom/gamepad/ipc/GamepadEventChannelParent.cpp b/dom/gamepad/ipc/GamepadEventChannelParent.cpp new file mode 100644 index 000000000..c3c8fd2c8 --- /dev/null +++ b/dom/gamepad/ipc/GamepadEventChannelParent.cpp @@ -0,0 +1,101 @@ +/* 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/. */ +#include "GamepadEventChannelParent.h" +#include "GamepadPlatformService.h" +#include "mozilla/dom/GamepadMonitoring.h" +#include "nsThreadUtils.h" + +namespace mozilla { +namespace dom { + +using namespace mozilla::ipc; + +namespace { + +class SendGamepadUpdateRunnable final : public Runnable +{ + private: + ~SendGamepadUpdateRunnable() {} + RefPtr<GamepadEventChannelParent> mParent; + GamepadChangeEvent mEvent; + public: + SendGamepadUpdateRunnable(GamepadEventChannelParent* aParent, + GamepadChangeEvent aEvent) + : mEvent(aEvent) + { + MOZ_ASSERT(aParent); + mParent = aParent; + } + NS_IMETHOD Run() override + { + AssertIsOnBackgroundThread(); + if(mParent->HasGamepadListener()) { + Unused << mParent->SendGamepadUpdate(mEvent); + } + return NS_OK; + } +}; + +} // namespace + +GamepadEventChannelParent::GamepadEventChannelParent() + : mHasGamepadListener(false) +{ + RefPtr<GamepadPlatformService> service = + GamepadPlatformService::GetParentService(); + MOZ_ASSERT(service); + service->AddChannelParent(this); + mBackgroundThread = NS_GetCurrentThread(); +} + +bool +GamepadEventChannelParent::RecvGamepadListenerAdded() +{ + AssertIsOnBackgroundThread(); + MOZ_ASSERT(!mHasGamepadListener); + mHasGamepadListener = true; + StartGamepadMonitoring(); + return true; +} + +bool +GamepadEventChannelParent::RecvGamepadListenerRemoved() +{ + AssertIsOnBackgroundThread(); + MOZ_ASSERT(mHasGamepadListener); + mHasGamepadListener = false; + RefPtr<GamepadPlatformService> service = + GamepadPlatformService::GetParentService(); + MOZ_ASSERT(service); + service->RemoveChannelParent(this); + Unused << Send__delete__(this); + return true; +} + +void +GamepadEventChannelParent::ActorDestroy(ActorDestroyReason aWhy) +{ + AssertIsOnBackgroundThread(); + + // It may be called because IPDL child side crashed, we'll + // not receive RecvGamepadListenerRemoved in that case + if (mHasGamepadListener) { + mHasGamepadListener = false; + RefPtr<GamepadPlatformService> service = + GamepadPlatformService::GetParentService(); + MOZ_ASSERT(service); + service->RemoveChannelParent(this); + } + MaybeStopGamepadMonitoring(); +} + +void +GamepadEventChannelParent::DispatchUpdateEvent(const GamepadChangeEvent& aEvent) +{ + mBackgroundThread->Dispatch(new SendGamepadUpdateRunnable(this, aEvent), + NS_DISPATCH_NORMAL); +} + +} // namespace dom +} // namespace mozilla |