diff --git a/libs/input/InputWindow.cpp b/libs/input/InputWindow.cpp
new file mode 100644
index 0000000..f94faba
--- /dev/null
+++ b/libs/input/InputWindow.cpp
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2011 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.
+ */
+
+#define LOG_TAG "InputWindow"
+#define LOG_NDEBUG 0
+
+#include <binder/Parcel.h>
+#include <input/InputWindow.h>
+#include <input/InputTransport.h>
+
+#include <log/log.h>
+
+#include <ui/Rect.h>
+#include <ui/Region.h>
+
+namespace android {
+
+// --- InputWindowInfo ---
+void InputWindowInfo::addTouchableRegion(const Rect& region) {
+    touchableRegion.orSelf(region);
+}
+
+bool InputWindowInfo::touchableRegionContainsPoint(int32_t x, int32_t y) const {
+    return touchableRegion.contains(x,y);
+}
+
+bool InputWindowInfo::frameContainsPoint(int32_t x, int32_t y) const {
+    return x >= frameLeft && x < frameRight
+            && y >= frameTop && y < frameBottom;
+}
+
+bool InputWindowInfo::isTrustedOverlay() const {
+    return layoutParamsType == TYPE_INPUT_METHOD
+            || layoutParamsType == TYPE_INPUT_METHOD_DIALOG
+            || layoutParamsType == TYPE_MAGNIFICATION_OVERLAY
+            || layoutParamsType == TYPE_STATUS_BAR
+            || layoutParamsType == TYPE_NAVIGATION_BAR
+            || layoutParamsType == TYPE_NAVIGATION_BAR_PANEL
+            || layoutParamsType == TYPE_SECURE_SYSTEM_OVERLAY
+            || layoutParamsType == TYPE_DOCK_DIVIDER
+            || layoutParamsType == TYPE_ACCESSIBILITY_OVERLAY
+            || layoutParamsType == TYPE_INPUT_CONSUMER;
+}
+
+bool InputWindowInfo::supportsSplitTouch() const {
+    return layoutParamsFlags & FLAG_SPLIT_TOUCH;
+}
+
+bool InputWindowInfo::overlaps(const InputWindowInfo* other) const {
+    return frameLeft < other->frameRight && frameRight > other->frameLeft
+            && frameTop < other->frameBottom && frameBottom > other->frameTop;
+}
+
+status_t InputWindowInfo::write(Parcel& output) const {
+    if (inputChannel == nullptr) {
+        output.writeInt32(0);
+        return OK;
+    }
+    output.writeInt32(1);
+    status_t s = inputChannel->write(output);
+    if (s != OK) return s;
+
+    output.writeString8(String8(name.c_str()));
+    output.writeInt32(layoutParamsFlags);
+    output.writeInt32(layoutParamsType);
+    output.writeInt64(dispatchingTimeout);
+    output.writeInt32(frameLeft);
+    output.writeInt32(frameTop);
+    output.writeInt32(frameRight);
+    output.writeInt32(frameBottom);
+    output.writeFloat(scaleFactor);
+    output.writeBool(visible);
+    output.writeBool(canReceiveKeys);
+    output.writeBool(hasFocus);
+    output.writeBool(hasWallpaper);
+    output.writeBool(paused);
+    output.writeInt32(layer);
+    output.writeInt32(ownerPid);
+    output.writeInt32(ownerUid);
+    output.writeInt32(inputFeatures);
+    output.writeInt32(displayId);
+    output.write(touchableRegion);
+
+    return OK;
+}
+
+InputWindowInfo InputWindowInfo::read(const Parcel& from) {
+    InputWindowInfo ret;
+
+    if (from.readInt32() == 0) {
+        return ret;
+
+    }
+    sp<InputChannel> inputChannel = new InputChannel();
+    status_t s = inputChannel->read(from);
+    if (s != OK) {
+        return ret;
+    }
+
+    ret.inputChannel = inputChannel;
+    ret.name = from.readString8().c_str();
+    ret.layoutParamsFlags = from.readInt32();
+    ret.layoutParamsType = from.readInt32();
+    ret.dispatchingTimeout = from.readInt64();
+    ret.frameLeft = from.readInt32();
+    ret.frameTop = from.readInt32();
+    ret.frameRight = from.readInt32();
+    ret.frameBottom = from.readInt32();
+    ret.scaleFactor = from.readFloat();
+    ret.visible = from.readBool();
+    ret.canReceiveKeys = from.readBool();
+    ret.hasFocus = from.readBool();
+    ret.hasWallpaper = from.readBool();
+    ret.paused = from.readBool();
+    ret.layer = from.readInt32();
+    ret.ownerPid = from.readInt32();
+    ret.ownerUid = from.readInt32();
+    ret.inputFeatures = from.readInt32();
+    ret.displayId = from.readInt32();
+    from.read(ret.touchableRegion);
+
+    return ret;
+}
+
+// --- InputWindowHandle ---
+
+InputWindowHandle::InputWindowHandle(const sp<InputApplicationHandle>& inputApplicationHandle) :
+    inputApplicationHandle(inputApplicationHandle), mInfo(nullptr) {
+}
+
+InputWindowHandle::~InputWindowHandle() {
+    delete mInfo;
+}
+
+void InputWindowHandle::releaseInfo() {
+    if (mInfo) {
+        delete mInfo;
+        mInfo = nullptr;
+    }
+}
+
+sp<InputChannel> InputWindowHandle::getInputChannel() const {
+    return mInfo ? mInfo->inputChannel : nullptr;
+}
+
+} // namespace android