ozone: Handle pressure and tilt for stylus devices

ui/events/ozone/evdev/tablet_event_converter_evdev.cc

Index: ui/events/ozone/evdev/tablet_event_converter_evdev.cc
diff --git a/ui/events/ozone/evdev/tablet_event_converter_evdev.cc b/ui/events/ozone/evdev/tablet_event_converter_evdev.cc
index 85eebda931069bf8e9007a53134623e0e5b637b0..6e65820b093967d93747338eab44c477dcf79fbe 100644
--- a/ui/events/ozone/evdev/tablet_event_converter_evdev.cc
+++ b/ui/events/ozone/evdev/tablet_event_converter_evdev.cc
@@ -34,6 +34,10 @@ TabletEventConverterEvdev::TabletEventConverterEvdev(
   x_abs_range_ = info.GetAbsMaximum(ABS_X) - x_abs_min_ + 1;
   y_abs_min_ = info.GetAbsMinimum(ABS_Y);
   y_abs_range_ = info.GetAbsMaximum(ABS_Y) - y_abs_min_ + 1;
+
+  tilt_x_max_ = info.GetAbsMaximum(ABS_TILT_X);
+  tilt_y_max_ = info.GetAbsMaximum(ABS_TILT_Y);
+  pressure_max_ = info.GetAbsMaximum(ABS_PRESSURE);
 }
 
 TabletEventConverterEvdev::~TabletEventConverterEvdev() {
@@ -111,6 +115,18 @@ void TabletEventConverterEvdev::ConvertAbsEvent(const input_event& input) {
       y_abs_location_ = input.value;
       abs_value_dirty_ = true;
       break;
+    case ABS_TILT_X:
+      tilt_x_ = (90.0f * input.value) / tilt_x_max_;
+      abs_value_dirty_ = true;
+      break;
+    case ABS_TILT_Y:
+      tilt_y_ = (90.0f * input.value) / tilt_y_max_;
+      abs_value_dirty_ = true;
+      break;
+    case ABS_PRESSURE:
+      pressure_ = (float)input.value / pressure_max_;
+      abs_value_dirty_ = true;
+      break;
   }
 }
 
@@ -152,7 +168,8 @@ void TabletEventConverterEvdev::DispatchMouseButton(const input_event& input) {
 
   dispatcher_->DispatchMouseButtonEvent(MouseButtonEventParams(
       input_device_.id, cursor_->GetLocation(), button, down,
-      false /* allow_remap */, TimeDeltaFromInputEvent(input)));
+      false /* allow_remap */, EventPointerType::POINTER_TYPE_PEN, pressure_,
+      tilt_x_, tilt_y_, TimeDeltaFromInputEvent(input)));
 }
 
 void TabletEventConverterEvdev::FlushEvents(const input_event& input) {
@@ -172,7 +189,8 @@ void TabletEventConverterEvdev::FlushEvents(const input_event& input) {
 
   dispatcher_->DispatchMouseMoveEvent(
       MouseMoveEventParams(input_device_.id, cursor_->GetLocation(),
-                           TimeDeltaFromInputEvent(input)));
+                           EventPointerType::POINTER_TYPE_PEN, pressure_,
+                           tilt_x_, tilt_y_, TimeDeltaFromInputEvent(input)));
 
   abs_value_dirty_ = false;
 }