[Sensors] Implement Sensor.onactivate

third_party/WebKit/Source/modules/sensor/Sensor.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef Sensor_h
 #define Sensor_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/ActiveDOMObject.h"
@@ skipping 14 matching lines @@
 
 class Sensor : public EventTargetWithInlineData,
                public ActiveScriptWrappable,
                public ContextLifecycleObserver,
                public PageVisibilityObserver,
                public SensorProxy::Observer {
   USING_GARBAGE_COLLECTED_MIXIN(Sensor);
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  enum class SensorState { IDLE, ACTIVATING, ACTIVE, ERRORED };
+  enum class SensorState { Idle, Activating, Active, Errored };
 
   ~Sensor() override;
 
   void start(ScriptState*, ExceptionState&);
   void stop(ScriptState*, ExceptionState&);
 
   // EventTarget overrides.
   const AtomicString& interfaceName() const override {
     return EventTargetNames::Sensor;
   }
   ExecutionContext* getExecutionContext() const override {
     return ContextLifecycleObserver::getExecutionContext();
   }
 
   // Getters
   String state() const;
   // TODO(riju): crbug.com/614797 .
   SensorReading* reading() const;
 
   DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
   DEFINE_ATTRIBUTE_EVENT_LISTENER(change);
-  DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange);
+  DEFINE_ATTRIBUTE_EVENT_LISTENER(activate);
 
   // ActiveScriptWrappable overrides.
   bool hasPendingActivity() const override;
 
   DECLARE_VIRTUAL_TRACE();
 
  protected:
   Sensor(ScriptState*,
          const SensorOptions&,
          ExceptionState&,
@@ skipping 35 matching lines @@
   void pollForData();
 
   void updateState(SensorState newState);
   void reportError(ExceptionCode = UnknownError,
                    const String& sanitizedMessage = String(),
                    const String& unsanitizedMessage = String());
 
   void updatePollingStatus();
 
   void notifySensorReadingChanged();
-  void notifyStateChanged();
+  void notifyOnActivate();
   void notifyError(DOMException* error);
 
  private:
   SensorOptions m_sensorOptions;
   device::mojom::blink::SensorType m_type;
   SensorState m_state;
   Member<SensorProxy> m_sensorProxy;
   std::unique_ptr<SensorPollingStrategy> m_polling;
   device::SensorReading m_storedData;
   SensorConfigurationPtr m_configuration;
 };
 
 }  // namespace blink
 
 #endif  // Sensor_h