src/third_party/WebKit/Source/modules/device_orientation/DeviceOrientationController.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef DeviceOrientationController_h
   6 #define DeviceOrientationController_h
   7
   8 #include "core/dom/DocumentSupplementable.h"
   9 #include "core/frame/DeviceSingleWindowEventController.h"
  10
  11 namespace blink {
  12
  13 class DeviceOrientationData;
  14 class Event;
  15
  16 class DeviceOrientationController FINAL : public DeviceSingleWindowEventController, public DocumentSupplement {
  17     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DeviceOrientationController);
  18 public:
  19     virtual ~DeviceOrientationController();
  20
  21     static const char* supplementName();
  22     static DeviceOrientationController& from(Document&);
  23
  24     // Inherited from DeviceSingleWindowEventController.
  25     void didUpdateData() OVERRIDE;
  26
  27     void setOverride(DeviceOrientationData*);
  28     void clearOverride();
  29
  30     virtual void trace(Visitor*) OVERRIDE;
  31
  32 private:
  33     explicit DeviceOrientationController(Document&);
  34
  35     // Inherited from DeviceEventControllerBase.
  36     virtual void registerWithDispatcher() OVERRIDE;
  37     virtual void unregisterWithDispatcher() OVERRIDE;
  38     virtual bool hasLastData() OVERRIDE;
  39
  40     // Inherited from DeviceSingleWindowEventController.
  41     virtual PassRefPtrWillBeRawPtr<Event> lastEvent() const OVERRIDE;
  42     virtual const AtomicString& eventTypeName() const OVERRIDE;
  43     virtual bool isNullEvent(Event*) const OVERRIDE;
  44
  45     DeviceOrientationData* lastData() const;
  46
  47     PersistentWillBeMember<DeviceOrientationData> m_overrideOrientationData;
  48 };
  49
  50 } // namespace blink
  51
  52 #endif // DeviceOrientationController_h