Split EventBuilders.h
The `NotifyArgs.h` header is only available within inputflinger.
Therefore, the builders that rely on NotifyArgs need to be defined
in inputflinger, while MotionEvent-related builders can be defined
in libinput (so they can be used in libinput tests).
Test: `atest surfaceflinger_tests` passes.
Bug: 268245099
Change-Id: I9c9013d3fb8799bba0fa93a0d7dafd3b6b56a583
diff --git a/include/input/InputEventBuilders.h b/include/input/InputEventBuilders.h
new file mode 100644
index 0000000..9c0c10e
--- /dev/null
+++ b/include/input/InputEventBuilders.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2023 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 <android/input.h>
+#include <attestation/HmacKeyManager.h>
+#include <gui/constants.h>
+#include <input/Input.h>
+#include <utils/Timers.h> // for nsecs_t, systemTime
+
+#include <vector>
+
+namespace android {
+
+// An arbitrary device id.
+static constexpr uint32_t DEFAULT_DEVICE_ID = 1;
+
+// The default policy flags to use for event injection by tests.
+static constexpr uint32_t DEFAULT_POLICY_FLAGS = POLICY_FLAG_FILTERED | POLICY_FLAG_PASS_TO_USER;
+
+class PointerBuilder {
+public:
+ PointerBuilder(int32_t id, ToolType toolType) {
+ mProperties.clear();
+ mProperties.id = id;
+ mProperties.toolType = toolType;
+ mCoords.clear();
+ }
+
+ PointerBuilder& x(float x) { return axis(AMOTION_EVENT_AXIS_X, x); }
+
+ PointerBuilder& y(float y) { return axis(AMOTION_EVENT_AXIS_Y, y); }
+
+ PointerBuilder& axis(int32_t axis, float value) {
+ mCoords.setAxisValue(axis, value);
+ return *this;
+ }
+
+ PointerProperties buildProperties() const { return mProperties; }
+
+ PointerCoords buildCoords() const { return mCoords; }
+
+private:
+ PointerProperties mProperties;
+ PointerCoords mCoords;
+};
+
+class MotionEventBuilder {
+public:
+ MotionEventBuilder(int32_t action, int32_t source) {
+ mAction = action;
+ mSource = source;
+ mEventTime = systemTime(SYSTEM_TIME_MONOTONIC);
+ mDownTime = mEventTime;
+ }
+
+ MotionEventBuilder& deviceId(int32_t deviceId) {
+ mDeviceId = deviceId;
+ return *this;
+ }
+
+ MotionEventBuilder& downTime(nsecs_t downTime) {
+ mDownTime = downTime;
+ return *this;
+ }
+
+ MotionEventBuilder& eventTime(nsecs_t eventTime) {
+ mEventTime = eventTime;
+ return *this;
+ }
+
+ MotionEventBuilder& displayId(int32_t displayId) {
+ mDisplayId = displayId;
+ return *this;
+ }
+
+ MotionEventBuilder& actionButton(int32_t actionButton) {
+ mActionButton = actionButton;
+ return *this;
+ }
+
+ MotionEventBuilder& buttonState(int32_t buttonState) {
+ mButtonState = buttonState;
+ return *this;
+ }
+
+ MotionEventBuilder& rawXCursorPosition(float rawXCursorPosition) {
+ mRawXCursorPosition = rawXCursorPosition;
+ return *this;
+ }
+
+ MotionEventBuilder& rawYCursorPosition(float rawYCursorPosition) {
+ mRawYCursorPosition = rawYCursorPosition;
+ return *this;
+ }
+
+ MotionEventBuilder& pointer(PointerBuilder pointer) {
+ mPointers.push_back(pointer);
+ return *this;
+ }
+
+ MotionEventBuilder& addFlag(uint32_t flags) {
+ mFlags |= flags;
+ return *this;
+ }
+
+ MotionEvent build() {
+ std::vector<PointerProperties> pointerProperties;
+ std::vector<PointerCoords> pointerCoords;
+ for (const PointerBuilder& pointer : mPointers) {
+ pointerProperties.push_back(pointer.buildProperties());
+ pointerCoords.push_back(pointer.buildCoords());
+ }
+
+ // Set mouse cursor position for the most common cases to avoid boilerplate.
+ if (mSource == AINPUT_SOURCE_MOUSE &&
+ !MotionEvent::isValidCursorPosition(mRawXCursorPosition, mRawYCursorPosition)) {
+ mRawXCursorPosition = pointerCoords[0].getX();
+ mRawYCursorPosition = pointerCoords[0].getY();
+ }
+
+ MotionEvent event;
+ static const ui::Transform kIdentityTransform;
+ event.initialize(InputEvent::nextId(), mDeviceId, mSource, mDisplayId, INVALID_HMAC,
+ mAction, mActionButton, mFlags, /*edgeFlags=*/0, AMETA_NONE, mButtonState,
+ MotionClassification::NONE, kIdentityTransform,
+ /*xPrecision=*/0, /*yPrecision=*/0, mRawXCursorPosition,
+ mRawYCursorPosition, kIdentityTransform, mDownTime, mEventTime,
+ mPointers.size(), pointerProperties.data(), pointerCoords.data());
+ return event;
+ }
+
+private:
+ int32_t mAction;
+ int32_t mDeviceId{DEFAULT_DEVICE_ID};
+ int32_t mSource;
+ nsecs_t mDownTime;
+ nsecs_t mEventTime;
+ int32_t mDisplayId{ADISPLAY_ID_DEFAULT};
+ int32_t mActionButton{0};
+ int32_t mButtonState{0};
+ int32_t mFlags{0};
+ float mRawXCursorPosition{AMOTION_EVENT_INVALID_CURSOR_POSITION};
+ float mRawYCursorPosition{AMOTION_EVENT_INVALID_CURSOR_POSITION};
+
+ std::vector<PointerBuilder> mPointers;
+};
+
+} // namespace android