distinguish touch pad and touch screen

Signed-off-by: wangxuanxuan <wangxuanxuan9@huawei.com>

common/include/constants_dinput.h

@@ -182,6 +182,8 @@ namespace DistributedInput {
 
     const std::string PROPERTIES = "properties";
 
+    const std::string DH_TOUCH_PAD = "touchpad";
+
     const std::string DINPUT_LOG_TITLE_TAG = "DINPUT";
 
     constexpr const char* LATENCY_COUNT_THREAD_NAME = "latencyCount";

common/include/input_hub.cpp

@@ -15,6 +15,7 @@
 
 #include "input_hub.h"
 
+#include <algorithm>
 #include <cinttypes>
 #include <cstring>
 #include <dirent.h>
@@ -28,7 +29,6 @@
 #include <unistd.h>
 #include <utility>
 
-
 #include "constants_dinput.h"
 #include "dinput_context.h"
 #include "dinput_errcode.h"
@@ -205,13 +205,24 @@ size_t InputHub::GetEvents(RawEvent* buffer, size_t bufferSize)
     return event - buffer;
 }
 
+bool InputHub::IsTouchPad(const InputDevice& inputDevice)
+{
+    std::string dhName = inputDevice.name;
+    DHLOGI("device name is %s.", dhName.c_str());
+    transform(dhName.begin(), dhName.end(), dhName.begin(), ::tolower);
+    if (dhName.find(DH_TOUCH_PAD) == std::string::npos) {
+        return false;
+    }
+    return true;
+}
+
 size_t InputHub::CollectEvent(RawEvent* buffer, size_t& capacity, Device* device, struct input_event readBuffer[],
     const size_t count)
 {
     std::vector<bool> needFilted(capacity, false);
     bool isTouchEvent = false;
     if ((device->classes & INPUT_DEVICE_CLASS_TOUCH_MT) || (device->classes & INPUT_DEVICE_CLASS_TOUCH)) {
-        if (device->identifier.relTypes.size() != 0) {
+        if (!IsTouchPad(device->identifier)) {
             isTouchEvent = true;
             HandleTouchScreenEvent(readBuffer, count, needFilted);
         }

common/include/input_hub.h

@@ -126,6 +126,7 @@ private:
 
     bool ContainsNonZeroByte(const uint8_t* array, uint32_t startIndex, uint32_t endIndex);
     int64_t ProcessEventTimestamp(const input_event& event);
+    bool IsTouchPad(const InputDevice& inputDevice);
 
     /*
      * this macro is used to tell if "bit" is set in "array"