Added ScreenCaptureListener to allow for screenshot request callbacks (85bf55ae) · Commits · e / os / android_frameworks_native-old

libs/binder/include/binder/IInterface.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -234,6 +234,7 @@ constexpr const char* const kManualInterfaces[] = {
		"android.gui.IGraphicBufferConsumer",
		"android.gui.IRegionSamplingListener",
		"android.gui.ITransactionComposerListener",
		"android.gui.IScreenCaptureListener",
		"android.gui.SensorEventConnection",
		"android.gui.SensorServer",
		"android.hardware.ICamera",

libs/gui/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -62,6 +62,7 @@ cc_library_shared {
		"IGraphicBufferProducer.cpp",
		"IProducerListener.cpp",
		"IRegionSamplingListener.cpp",
		"IScreenCaptureListener.cpp",
		"ISurfaceComposer.cpp",
		"ISurfaceComposerClient.cpp",
		"ITransactionCompletedListener.cpp",

libs/gui/IScreenCaptureListener.cpp

0 → 100644

+70 −0

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		/*
		* Copyright (C) 2020 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#include <gui/IScreenCaptureListener.h>
		#include <gui/LayerState.h>

		namespace android {

		namespace { // Anonymous

		enum class Tag : uint32_t {
		ON_SCREEN_CAPTURE_COMPLETE = IBinder::FIRST_CALL_TRANSACTION,
		LAST = ON_SCREEN_CAPTURE_COMPLETE,
		};

		} // Anonymous namespace

		class BpScreenCaptureListener : public SafeBpInterface<IScreenCaptureListener> {
		public:
		explicit BpScreenCaptureListener(const sp<IBinder>& impl)
		: SafeBpInterface<IScreenCaptureListener>(impl, "BpScreenCaptureListener") {}

		~BpScreenCaptureListener() override;

		status_t onScreenCaptureComplete(const ScreenCaptureResults& captureResults) override {
		Parcel data, reply;
		data.writeInterfaceToken(IScreenCaptureListener::getInterfaceDescriptor());

		SAFE_PARCEL(captureResults.write, data);
		return remote()->transact(static_cast<uint32_t>(Tag::ON_SCREEN_CAPTURE_COMPLETE), data,
		&reply, IBinder::FLAG_ONEWAY);
		}
		};

		// Out-of-line virtual method definitions to trigger vtable emission in this translation unit (see
		// clang warning -Wweak-vtables)
		BpScreenCaptureListener::~BpScreenCaptureListener() = default;

		IMPLEMENT_META_INTERFACE(ScreenCaptureListener, "android.gui.IScreenCaptureListener");

		status_t BnScreenCaptureListener::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
		uint32_t flags) {
		auto tag = static_cast<Tag>(code);
		switch (tag) {
		case Tag::ON_SCREEN_CAPTURE_COMPLETE: {
		CHECK_INTERFACE(IScreenCaptureListener, data, reply);
		ScreenCaptureResults captureResults;
		SAFE_PARCEL(captureResults.read, data);
		return onScreenCaptureComplete(captureResults);
		}
		default: {
		return BBinder::onTransact(code, data, reply, flags);
		}
		}
		}

		} // namespace android
		No newline at end of file

libs/gui/LayerState.cpp

+15 −3

Original line number	Diff line number	Diff line
		@@ -607,19 +607,31 @@ status_t LayerCaptureArgs::read(const Parcel& input) {
		}

		status_t ScreenCaptureResults::write(Parcel& output) const {
		if (buffer != nullptr) {
		SAFE_PARCEL(output.writeBool, true);
		SAFE_PARCEL(output.write, *buffer);
		} else {
		SAFE_PARCEL(output.writeBool, false);
		}
		SAFE_PARCEL(output.writeBool, capturedSecureLayers);
		SAFE_PARCEL(output.writeUint32, static_cast<uint32_t>(capturedDataspace));
		SAFE_PARCEL(output.writeInt32, result);
		return NO_ERROR;
		}

		status_t ScreenCaptureResults::read(const Parcel& input) {
		bool hasGraphicBuffer;
		SAFE_PARCEL(input.readBool, &hasGraphicBuffer);
		if (hasGraphicBuffer) {
		buffer = new GraphicBuffer();
		SAFE_PARCEL(input.read, *buffer);
		}

		SAFE_PARCEL(input.readBool, &capturedSecureLayers);
		uint32_t dataspace = 0;
		SAFE_PARCEL(input.readUint32, &dataspace);
		capturedDataspace = static_cast<ui::Dataspace>(dataspace);
		SAFE_PARCEL(input.readInt32, &result);
		return NO_ERROR;
		}

libs/gui/include/gui/IScreenCaptureListener.h

0 → 100644

+45 −0

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		/*
		* Copyright 2020 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#pragma once

		#include <binder/Binder.h>
		#include <binder/IInterface.h>
		#include <binder/Parcel.h>
		#include <binder/SafeInterface.h>

		namespace android {

		struct ScreenCaptureResults;

		// TODO(b/166271443): Convert to AIDL
		class IScreenCaptureListener : public IInterface {
		public:
		DECLARE_META_INTERFACE(ScreenCaptureListener)

		virtual status_t onScreenCaptureComplete(const ScreenCaptureResults& captureResults) = 0;
		};

		class BnScreenCaptureListener : public SafeBnInterface<IScreenCaptureListener> {
		public:
		BnScreenCaptureListener()
		: SafeBnInterface<IScreenCaptureListener>("BnScreenCaptureListener") {}

		status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply,
		uint32_t flags = 0) override;
		};

		} // namespace android