From 631a14e89b5a2d6c47ab001de5ec1333b67c7962 Mon Sep 17 00:00:00 2001
From: Asmita Poddar <asmitapoddar@google.com>
Date: Tue, 3 Oct 2023 10:22:07 +0000
Subject: Move common device metrics code to InputDeviceMetricsSource

Move common device metrics code from InputDeviceMetricsCollector to
InputDeviceMetricsSource.
The common code moved is:
* enum class InputDeviceUsageSource
* InputDeviceUsageSource getUsageSourceForKeyArgs(int32_t, const NotifyKeyArgs&)
* set<InputDeviceUsageSource> getUsageSourcesForMotionArgs(const NotifyMotionArgs&)

This code will be used by both InputDeviceMetricsCollector,
which is a part of inputflinger as well as LatencyTracker,
which is a part of the dispatcher.
InputDeviceMetricsSource can be included in the places using the common code.

Bug: 303059859
Test: atest inputflinger_tests:InputDeviceMetricsSourceDeviceClassificationTest
Change-Id: Ia8528e641cd162d5025495d5bf6903b2dbab2ed3
---
 services/inputflinger/InputDeviceMetricsSource.cpp | 118 +++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 services/inputflinger/InputDeviceMetricsSource.cpp

(limited to 'services/inputflinger/InputDeviceMetricsSource.cpp')

diff --git a/services/inputflinger/InputDeviceMetricsSource.cpp b/services/inputflinger/InputDeviceMetricsSource.cpp
new file mode 100644
index 0000000000..dee4cb836e
--- /dev/null
+++ b/services/inputflinger/InputDeviceMetricsSource.cpp
@@ -0,0 +1,118 @@
+/*
+ * 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.
+ */
+
+#include "InputDeviceMetricsSource.h"
+
+#include "KeyCodeClassifications.h"
+
+#include <android/input.h>
+#include <input/Input.h>
+#include <linux/input.h>
+#include <log/log_main.h>
+
+#include <set>
+
+namespace android {
+
+InputDeviceUsageSource getUsageSourceForKeyArgs(int32_t keyboardType,
+                                                const NotifyKeyArgs& keyArgs) {
+    if (!isFromSource(keyArgs.source, AINPUT_SOURCE_KEYBOARD)) {
+        return InputDeviceUsageSource::UNKNOWN;
+    }
+
+    if (isFromSource(keyArgs.source, AINPUT_SOURCE_DPAD) &&
+        DPAD_ALL_KEYCODES.count(keyArgs.keyCode) != 0) {
+        return InputDeviceUsageSource::DPAD;
+    }
+
+    if (isFromSource(keyArgs.source, AINPUT_SOURCE_GAMEPAD) &&
+        GAMEPAD_KEYCODES.count(keyArgs.keyCode) != 0) {
+        return InputDeviceUsageSource::GAMEPAD;
+    }
+
+    if (keyboardType == AINPUT_KEYBOARD_TYPE_ALPHABETIC) {
+        return InputDeviceUsageSource::KEYBOARD;
+    }
+
+    return InputDeviceUsageSource::BUTTONS;
+}
+
+std::set<InputDeviceUsageSource> getUsageSourcesForMotionArgs(const NotifyMotionArgs& motionArgs) {
+    LOG_ALWAYS_FATAL_IF(motionArgs.getPointerCount() < 1, "Received motion args without pointers");
+    std::set<InputDeviceUsageSource> sources;
+
+    for (uint32_t i = 0; i < motionArgs.getPointerCount(); i++) {
+        const auto toolType = motionArgs.pointerProperties[i].toolType;
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_MOUSE)) {
+            if (toolType == ToolType::MOUSE) {
+                sources.emplace(InputDeviceUsageSource::MOUSE);
+                continue;
+            }
+            if (toolType == ToolType::FINGER) {
+                sources.emplace(InputDeviceUsageSource::TOUCHPAD);
+                continue;
+            }
+            if (isStylusToolType(toolType)) {
+                sources.emplace(InputDeviceUsageSource::STYLUS_INDIRECT);
+                continue;
+            }
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_MOUSE_RELATIVE) &&
+            toolType == ToolType::MOUSE) {
+            sources.emplace(InputDeviceUsageSource::MOUSE_CAPTURED);
+            continue;
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_TOUCHPAD) &&
+            toolType == ToolType::FINGER) {
+            sources.emplace(InputDeviceUsageSource::TOUCHPAD_CAPTURED);
+            continue;
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_BLUETOOTH_STYLUS) &&
+            isStylusToolType(toolType)) {
+            sources.emplace(InputDeviceUsageSource::STYLUS_FUSED);
+            continue;
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_STYLUS) && isStylusToolType(toolType)) {
+            sources.emplace(InputDeviceUsageSource::STYLUS_DIRECT);
+            continue;
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_TOUCH_NAVIGATION)) {
+            sources.emplace(InputDeviceUsageSource::TOUCH_NAVIGATION);
+            continue;
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_JOYSTICK)) {
+            sources.emplace(InputDeviceUsageSource::JOYSTICK);
+            continue;
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_ROTARY_ENCODER)) {
+            sources.emplace(InputDeviceUsageSource::ROTARY_ENCODER);
+            continue;
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_TRACKBALL)) {
+            sources.emplace(InputDeviceUsageSource::TRACKBALL);
+            continue;
+        }
+        if (isFromSource(motionArgs.source, AINPUT_SOURCE_TOUCHSCREEN)) {
+            sources.emplace(InputDeviceUsageSource::TOUCHSCREEN);
+            continue;
+        }
+        sources.emplace(InputDeviceUsageSource::UNKNOWN);
+    }
+
+    return sources;
+}
+
+} // namespace android
-- 
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