зеркало из https://github.com/mozilla/pjs.git
366 строки
11 KiB
C++
366 строки
11 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Doug Turner <dougt@dougt.org>
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "mozilla/Hal.h"
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#include "mozilla/HalSensor.h"
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#include "nsDeviceSensors.h"
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#include "nsAutoPtr.h"
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#include "nsIDOMEvent.h"
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#include "nsIDOMWindow.h"
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#include "nsPIDOMWindow.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMEventTarget.h"
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#include "nsIServiceManager.h"
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#include "nsIPrivateDOMEvent.h"
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#include "nsIServiceManager.h"
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#include "mozilla/Preferences.h"
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using namespace mozilla;
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using namespace hal;
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// also see sDefaultSensorHint in mobile/android/base/GeckoAppShell.java
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#define DEFAULT_SENSOR_POLL 100
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static const nsTArray<nsIDOMWindow*>::index_type NoIndex =
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nsTArray<nsIDOMWindow*>::NoIndex;
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class nsDeviceSensorData : public nsIDeviceSensorData
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIDEVICESENSORDATA
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nsDeviceSensorData(unsigned long type, double x, double y, double z);
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private:
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~nsDeviceSensorData();
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protected:
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unsigned long mType;
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double mX, mY, mZ;
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};
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nsDeviceSensorData::nsDeviceSensorData(unsigned long type, double x, double y, double z)
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: mType(type), mX(x), mY(y), mZ(z)
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{
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}
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NS_INTERFACE_MAP_BEGIN(nsDeviceSensorData)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDeviceSensorData)
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NS_INTERFACE_MAP_END
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NS_IMPL_ADDREF(nsDeviceSensorData)
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NS_IMPL_RELEASE(nsDeviceSensorData)
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nsDeviceSensorData::~nsDeviceSensorData()
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{
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}
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NS_IMETHODIMP nsDeviceSensorData::GetType(PRUint32 *aType)
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{
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NS_ENSURE_ARG_POINTER(aType);
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*aType = mType;
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return NS_OK;
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}
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NS_IMETHODIMP nsDeviceSensorData::GetX(double *aX)
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{
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NS_ENSURE_ARG_POINTER(aX);
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*aX = mX;
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return NS_OK;
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}
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NS_IMETHODIMP nsDeviceSensorData::GetY(double *aY)
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{
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NS_ENSURE_ARG_POINTER(aY);
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*aY = mY;
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return NS_OK;
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}
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NS_IMETHODIMP nsDeviceSensorData::GetZ(double *aZ)
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{
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NS_ENSURE_ARG_POINTER(aZ);
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*aZ = mZ;
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return NS_OK;
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}
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NS_IMPL_ISUPPORTS1(nsDeviceSensors, nsIDeviceSensors)
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nsDeviceSensors::nsDeviceSensors()
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{
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mLastDOMMotionEventTime = TimeStamp::Now();
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mEnabled = Preferences::GetBool("device.sensors.enabled", true);
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for (int i = 0; i < NUM_SENSOR_TYPE; i++) {
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nsTArray<nsIDOMWindow*> *windows = new nsTArray<nsIDOMWindow*>();
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mWindowListeners.AppendElement(windows);
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}
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mLastDOMMotionEventTime = TimeStamp::Now();
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}
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nsDeviceSensors::~nsDeviceSensors()
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{
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for (int i = 0; i < NUM_SENSOR_TYPE; i++) {
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if (IsSensorEnabled(i))
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UnregisterSensorObserver((SensorType)i, this);
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}
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for (int i = 0; i < NUM_SENSOR_TYPE; i++) {
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delete mWindowListeners[i];
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}
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}
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NS_IMETHODIMP nsDeviceSensors::AddWindowListener(PRUint32 aType, nsIDOMWindow *aWindow)
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{
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if (!mEnabled)
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return NS_OK;
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if (mWindowListeners[aType]->IndexOf(aWindow) != NoIndex)
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return NS_OK;
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if (!IsSensorEnabled(aType)) {
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RegisterSensorObserver((SensorType)aType, this);
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}
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mWindowListeners[aType]->AppendElement(aWindow);
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return NS_OK;
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}
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NS_IMETHODIMP nsDeviceSensors::RemoveWindowListener(PRUint32 aType, nsIDOMWindow *aWindow)
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{
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if (mWindowListeners[aType]->IndexOf(aWindow) == NoIndex)
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return NS_OK;
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mWindowListeners[aType]->RemoveElement(aWindow);
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if (mWindowListeners[aType]->Length() == 0)
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UnregisterSensorObserver((SensorType)aType, this);
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return NS_OK;
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}
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NS_IMETHODIMP nsDeviceSensors::RemoveWindowAsListener(nsIDOMWindow *aWindow)
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{
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for (int i = 0; i < NUM_SENSOR_TYPE; i++) {
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RemoveWindowListener((SensorType)i, aWindow);
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}
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return NS_OK;
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}
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void
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nsDeviceSensors::Notify(const mozilla::hal::SensorData& aSensorData)
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{
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PRUint32 type = aSensorData.sensor();
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double x = aSensorData.values()[0];
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double y = aSensorData.values()[1];
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double z = aSensorData.values()[2];
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nsCOMArray<nsIDOMWindow> windowListeners;
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for (PRUint32 i = 0; i < mWindowListeners[type]->Length(); i++) {
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windowListeners.AppendObject(mWindowListeners[type]->SafeElementAt(i));
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}
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for (PRUint32 i = windowListeners.Count(); i > 0 ; ) {
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--i;
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// check to see if this window is in the background. if
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// it is, don't send any device motion to it.
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nsCOMPtr<nsPIDOMWindow> pwindow = do_QueryInterface(windowListeners[i]);
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if (!pwindow ||
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!pwindow->GetOuterWindow() ||
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pwindow->GetOuterWindow()->IsBackground())
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continue;
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nsCOMPtr<nsIDOMDocument> domdoc;
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windowListeners[i]->GetDocument(getter_AddRefs(domdoc));
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if (domdoc) {
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nsCOMPtr<nsIDOMEventTarget> target = do_QueryInterface(windowListeners[i]);
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if (type == nsIDeviceSensorData::TYPE_ACCELERATION ||
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type == nsIDeviceSensorData::TYPE_LINEAR_ACCELERATION ||
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type == nsIDeviceSensorData::TYPE_GYROSCOPE)
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FireDOMMotionEvent(domdoc, target, type, x, y, z);
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else if (type == nsIDeviceSensorData::TYPE_ORIENTATION)
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FireDOMOrientationEvent(domdoc, target, x, y, z);
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else if (type == nsIDeviceSensorData::TYPE_PROXIMITY)
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FireDOMProximityEvent(target, x, y, z);
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else if (type == nsIDeviceSensorData::TYPE_LIGHT)
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FireDOMLightEvent(target, x);
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}
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}
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}
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void
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nsDeviceSensors::FireDOMLightEvent(nsIDOMEventTarget *aTarget,
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double aValue)
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{
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nsCOMPtr<nsIDOMEvent> event;
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NS_NewDOMDeviceLightEvent(getter_AddRefs(event), nsnull, nsnull);
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nsCOMPtr<nsIDOMDeviceLightEvent> oe = do_QueryInterface(event);
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oe->InitDeviceLightEvent(NS_LITERAL_STRING("devicelight"),
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true,
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false,
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aValue);
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nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(event);
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if (privateEvent) {
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privateEvent->SetTrusted(true);
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}
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bool defaultActionEnabled;
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aTarget->DispatchEvent(event, &defaultActionEnabled);
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}
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void
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nsDeviceSensors::FireDOMProximityEvent(nsIDOMEventTarget *aTarget,
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double aValue,
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double aMin,
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double aMax)
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{
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nsCOMPtr<nsIDOMEvent> event;
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NS_NewDOMDeviceProximityEvent(getter_AddRefs(event), nsnull, nsnull);
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nsCOMPtr<nsIDOMDeviceProximityEvent> oe = do_QueryInterface(event);
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oe->InitDeviceProximityEvent(NS_LITERAL_STRING("deviceproximity"),
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true,
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false,
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aValue,
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aMin,
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aMax);
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nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(event);
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if (privateEvent) {
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privateEvent->SetTrusted(true);
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}
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bool defaultActionEnabled;
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aTarget->DispatchEvent(event, &defaultActionEnabled);
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}
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void
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nsDeviceSensors::FireDOMOrientationEvent(nsIDOMDocument *domdoc,
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nsIDOMEventTarget *target,
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double alpha,
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double beta,
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double gamma)
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{
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nsCOMPtr<nsIDOMEvent> event;
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bool defaultActionEnabled = true;
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domdoc->CreateEvent(NS_LITERAL_STRING("DeviceOrientationEvent"), getter_AddRefs(event));
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nsCOMPtr<nsIDOMDeviceOrientationEvent> oe = do_QueryInterface(event);
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if (!oe) {
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return;
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}
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oe->InitDeviceOrientationEvent(NS_LITERAL_STRING("deviceorientation"),
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true,
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false,
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alpha,
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beta,
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gamma,
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true);
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nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(event);
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if (privateEvent)
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privateEvent->SetTrusted(true);
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target->DispatchEvent(event, &defaultActionEnabled);
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}
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void
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nsDeviceSensors::FireDOMMotionEvent(nsIDOMDocument *domdoc,
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nsIDOMEventTarget *target,
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PRUint32 type,
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double x,
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double y,
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double z) {
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// Attempt to coalesce events
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bool fireEvent = TimeStamp::Now() > mLastDOMMotionEventTime + TimeDuration::FromMilliseconds(DEFAULT_SENSOR_POLL);
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switch (type) {
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case nsIDeviceSensorData::TYPE_LINEAR_ACCELERATION:
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mLastAcceleration = new nsDOMDeviceAcceleration(x, y, z);
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break;
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case nsIDeviceSensorData::TYPE_ACCELERATION:
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mLastAccelerationIncluduingGravity = new nsDOMDeviceAcceleration(x, y, z);
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break;
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case nsIDeviceSensorData::TYPE_GYROSCOPE:
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mLastRotationRate = new nsDOMDeviceRotationRate(x, y, z);
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break;
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}
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if (!fireEvent && (!mLastAcceleration || !mLastAccelerationIncluduingGravity || !mLastRotationRate)) {
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return;
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}
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nsCOMPtr<nsIDOMEvent> event;
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domdoc->CreateEvent(NS_LITERAL_STRING("DeviceMotionEvent"), getter_AddRefs(event));
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nsCOMPtr<nsIDOMDeviceMotionEvent> me = do_QueryInterface(event);
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if (!me)
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return;
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me->InitDeviceMotionEvent(NS_LITERAL_STRING("devicemotion"),
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true,
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false,
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mLastAcceleration,
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mLastAccelerationIncluduingGravity,
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mLastRotationRate,
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DEFAULT_SENSOR_POLL);
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nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(event);
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if (privateEvent)
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privateEvent->SetTrusted(true);
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bool defaultActionEnabled = true;
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target->DispatchEvent(event, &defaultActionEnabled);
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mLastRotationRate = nsnull;
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mLastAccelerationIncluduingGravity = nsnull;
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mLastAcceleration = nsnull;
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mLastDOMMotionEventTime = TimeStamp::Now();
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}
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