Absolute Device Orientation API: blink implementation.

third_party/WebKit/Source/modules/device_orientation/DeviceOrientationDispatcher.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #include "config.h"
 #include "modules/device_orientation/DeviceOrientationDispatcher.h"
 
 #include "modules/device_orientation/DeviceOrientationController.h"
 #include "modules/device_orientation/DeviceOrientationData.h"
 #include "public/platform/Platform.h"
 
 namespace blink {
 
-DeviceOrientationDispatcher& DeviceOrientationDispatcher::instance()
+DeviceOrientationDispatcher& DeviceOrientationDispatcher::instance(bool absolute)
 {
-    DEFINE_STATIC_LOCAL(Persistent<DeviceOrientationDispatcher>, deviceOrientationDispatcher, (new DeviceOrientationDispatcher()));
+    if (absolute) {
+        DEFINE_STATIC_LOCAL(Persistent<DeviceOrientationDispatcher>, deviceOrientationAbsoluteDispatcher, (new DeviceOrientationDispatcher(absolute)));

[haraken, 2015/10/28 18:18:38]

Shouldn't this be DeviceOrientationAbsoluteDispatcher?

[timvolodine, 2015/10/29 13:49:18]

no, we've only one dispatcher class (parameterized by 'absolute') to save some
code.

+        return *deviceOrientationAbsoluteDispatcher;
+    }
+    DEFINE_STATIC_LOCAL(Persistent<DeviceOrientationDispatcher>, deviceOrientationDispatcher, (new DeviceOrientationDispatcher(absolute)));
     return *deviceOrientationDispatcher;
 }
 
-DeviceOrientationDispatcher::DeviceOrientationDispatcher()
+DeviceOrientationDispatcher::DeviceOrientationDispatcher(bool absolute) : m_absolute(absolute)
 {
 }
 
 DeviceOrientationDispatcher::~DeviceOrientationDispatcher()
 {
 }
 
 DEFINE_TRACE(DeviceOrientationDispatcher)
 {
     visitor->trace(m_lastDeviceOrientationData);
     PlatformEventDispatcher::trace(visitor);
 }
 
 void DeviceOrientationDispatcher::startListening()
 {
-    Platform::current()->startListening(WebPlatformEventTypeDeviceOrientation, this);
+    Platform::current()->startListening(getWebPlatformEventType(), this);
 }
 
 void DeviceOrientationDispatcher::stopListening()
 {
-    Platform::current()->stopListening(WebPlatformEventTypeDeviceOrientation);
+    Platform::current()->stopListening(getWebPlatformEventType());
     m_lastDeviceOrientationData.clear();
 }
 
 void DeviceOrientationDispatcher::didChangeDeviceOrientation(const WebDeviceOrientationData& motion)
 {
     m_lastDeviceOrientationData = DeviceOrientationData::create(motion);
     notifyControllers();
 }
 
 DeviceOrientationData* DeviceOrientationDispatcher::latestDeviceOrientationData()
 {
     return m_lastDeviceOrientationData.get();
 }
 
+WebPlatformEventType DeviceOrientationDispatcher::getWebPlatformEventType() const
+{
+    return (m_absolute) ? WebPlatformEventTypeDeviceOrientationAbsolute : WebPlatformEventTypeDeviceOrientation;
+}
+
 } // namespace blink