Implement Parcelling functions for InputWindowInfo

In preparation for parcelling across the SurfaceControl interface.
As a dependency we move the parcelling of InputChannels from
frameworks/base JNI code in to InputChannel.h.

Bug: 80101428
Bug: 113136004
Bug: 111440400
Test: None
Change-Id: Ib27f03282e9872274b834bb00737fd351e7a1b30
diff --git a/libs/input/tests/InputWindow_test.cpp b/libs/input/tests/InputWindow_test.cpp
new file mode 100644
index 0000000..39ad26e
--- /dev/null
+++ b/libs/input/tests/InputWindow_test.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2018 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 <gtest/gtest.h>
+
+#include <binder/Parcel.h>
+
+#include <input/InputWindow.h>
+#include <input/InputTransport.h>
+
+namespace android {
+namespace test {
+
+TEST(InputWindowInfo, ParcellingWithoutChannel) {
+    InputWindowInfo i;
+    i.inputChannel = nullptr;
+
+    Parcel p;
+    ASSERT_EQ(OK, i.write(p));
+    p.setDataPosition(0);
+    InputWindowInfo i2 = InputWindowInfo::read(p);
+    ASSERT_TRUE(i2.inputChannel == nullptr);
+}
+
+TEST(InputWindowInfo, Parcelling) {
+    sp<InputChannel> channel, junkChannel;
+    status_t result = InputChannel::openInputChannelPair("name", channel, junkChannel);
+    ASSERT_EQ(OK, result) << "openInputChannelPair should have returned valid channels";
+
+    InputWindowInfo i;
+    i.inputChannel = channel;
+    i.name = "Foobar";
+    i.layoutParamsFlags = 7;
+    i.layoutParamsType = 39;
+    i.dispatchingTimeout = 12;
+    i.frameLeft = 93;
+    i.frameTop = 34;
+    i.frameRight = 16;
+    i.frameBottom = 19;
+    i.scaleFactor = 0.3;
+    i.visible = false;
+    i.canReceiveKeys = false;
+    i.hasFocus = false;
+    i.hasWallpaper = false;
+    i.paused = false;
+    i.layer = 7;
+    i.ownerPid = 19;
+    i.ownerUid = 24;
+    i.inputFeatures = 29;
+    i.displayId = 34;
+
+    Parcel p;
+    i.write(p);
+
+    p.setDataPosition(0);
+    InputWindowInfo i2 = InputWindowInfo::read(p);
+    ASSERT_EQ(i.inputChannel->getName(), i2.inputChannel->getName());
+    ASSERT_EQ(i.name, i2.name);
+    ASSERT_EQ(i.layoutParamsFlags, i2.layoutParamsFlags);
+    ASSERT_EQ(i.layoutParamsType, i2.layoutParamsType);
+    ASSERT_EQ(i.dispatchingTimeout, i2.dispatchingTimeout);
+    ASSERT_EQ(i.frameLeft, i2.frameLeft);
+    ASSERT_EQ(i.frameTop, i2.frameTop);
+    ASSERT_EQ(i.frameRight, i2.frameRight);
+    ASSERT_EQ(i.frameBottom, i2.frameBottom);
+    ASSERT_EQ(i.scaleFactor, i2.scaleFactor);
+    ASSERT_EQ(i.visible, i2.visible);
+    ASSERT_EQ(i.canReceiveKeys, i2.canReceiveKeys);
+    ASSERT_EQ(i.hasFocus, i2.hasFocus);
+    ASSERT_EQ(i.hasWallpaper, i2.hasWallpaper);
+    ASSERT_EQ(i.paused, i2.paused);
+    ASSERT_EQ(i.layer, i2.layer);
+    ASSERT_EQ(i.ownerPid, i2.ownerPid);
+    ASSERT_EQ(i.ownerUid, i2.ownerUid);
+    ASSERT_EQ(i.inputFeatures, i2.inputFeatures);
+    ASSERT_EQ(i.displayId, i2.displayId);
+}
+
+} // namespace test
+} // namespace android