зеркало из https://github.com/mozilla/gecko-dev.git
527 строки
16 KiB
C++
527 строки
16 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "base/basictypes.h"
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#include "nsCOMPtr.h"
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#include "nsDOMClassInfo.h"
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#include "jsapi.h"
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#include "nsThread.h"
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#include "DeviceStorage.h"
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#include "mozilla/dom/CameraControlBinding.h"
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#include "mozilla/dom/ContentChild.h"
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#include "mozilla/Services.h"
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#include "mozilla/unused.h"
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#include "nsIObserverService.h"
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#include "nsIDOMDeviceStorage.h"
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#include "nsXULAppAPI.h"
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#include "DOMCameraManager.h"
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#include "DOMCameraCapabilities.h"
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#include "DOMCameraControl.h"
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#include "CameraCommon.h"
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#include "mozilla/dom/CameraManagerBinding.h"
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#include "mozilla/dom/BindingUtils.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(nsDOMCameraControl, mDOMCapabilities, mWindow)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMCameraControl)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMCameraControl)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCameraControl)
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nsDOMCameraControl::~nsDOMCameraControl()
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{
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DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
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}
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JSObject*
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nsDOMCameraControl::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope)
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{
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return CameraControlBinding::Wrap(aCx, aScope, this);
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}
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nsICameraCapabilities*
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nsDOMCameraControl::Capabilities()
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{
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if (!mDOMCapabilities) {
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mDOMCapabilities = new DOMCameraCapabilities(mCameraControl);
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}
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return mDOMCapabilities;
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}
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void
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nsDOMCameraControl::GetEffect(nsString& aEffect, ErrorResult& aRv)
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{
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aRv = mCameraControl->Get(CAMERA_PARAM_EFFECT, aEffect);
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}
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void
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nsDOMCameraControl::SetEffect(const nsAString& aEffect, ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(CAMERA_PARAM_EFFECT, aEffect);
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}
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void
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nsDOMCameraControl::GetWhiteBalanceMode(nsString& aWhiteBalanceMode, ErrorResult& aRv)
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{
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aRv = mCameraControl->Get(CAMERA_PARAM_WHITEBALANCE, aWhiteBalanceMode);
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}
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void
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nsDOMCameraControl::SetWhiteBalanceMode(const nsAString& aWhiteBalanceMode, ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(CAMERA_PARAM_WHITEBALANCE, aWhiteBalanceMode);
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}
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void
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nsDOMCameraControl::GetSceneMode(nsString& aSceneMode, ErrorResult& aRv)
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{
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aRv = mCameraControl->Get(CAMERA_PARAM_SCENEMODE, aSceneMode);
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}
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void
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nsDOMCameraControl::SetSceneMode(const nsAString& aSceneMode, ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(CAMERA_PARAM_SCENEMODE, aSceneMode);
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}
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void
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nsDOMCameraControl::GetFlashMode(nsString& aFlashMode, ErrorResult& aRv)
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{
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aRv = mCameraControl->Get(CAMERA_PARAM_FLASHMODE, aFlashMode);
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}
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void
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nsDOMCameraControl::SetFlashMode(const nsAString& aFlashMode, ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(CAMERA_PARAM_FLASHMODE, aFlashMode);
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}
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void
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nsDOMCameraControl::GetFocusMode(nsString& aFocusMode, ErrorResult& aRv)
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{
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aRv = mCameraControl->Get(CAMERA_PARAM_FOCUSMODE, aFocusMode);
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}
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void
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nsDOMCameraControl::SetFocusMode(const nsAString& aFocusMode, ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(CAMERA_PARAM_FOCUSMODE, aFocusMode);
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}
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double
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nsDOMCameraControl::GetZoom(ErrorResult& aRv)
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{
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double zoom;
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aRv = mCameraControl->Get(CAMERA_PARAM_ZOOM, &zoom);
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return zoom;
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}
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void
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nsDOMCameraControl::SetZoom(double aZoom, ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(CAMERA_PARAM_ZOOM, aZoom);
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}
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/* attribute jsval meteringAreas; */
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JS::Value
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nsDOMCameraControl::GetMeteringAreas(JSContext* cx, ErrorResult& aRv)
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{
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JS::Rooted<JS::Value> areas(cx);
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aRv = mCameraControl->Get(cx, CAMERA_PARAM_METERINGAREAS, areas.address());
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return areas;
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}
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void
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nsDOMCameraControl::SetMeteringAreas(JSContext* cx, JS::Handle<JS::Value> aMeteringAreas, ErrorResult& aRv)
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{
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aRv = mCameraControl->SetMeteringAreas(cx, aMeteringAreas);
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}
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JS::Value
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nsDOMCameraControl::GetFocusAreas(JSContext* cx, ErrorResult& aRv)
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{
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JS::Rooted<JS::Value> value(cx);
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aRv = mCameraControl->Get(cx, CAMERA_PARAM_FOCUSAREAS, value.address());
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return value;
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}
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void
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nsDOMCameraControl::SetFocusAreas(JSContext* cx, JS::Handle<JS::Value> aFocusAreas, ErrorResult& aRv)
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{
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aRv = mCameraControl->SetFocusAreas(cx, aFocusAreas);
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}
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double
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nsDOMCameraControl::GetFocalLength(ErrorResult& aRv)
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{
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double focalLength;
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aRv = mCameraControl->Get(CAMERA_PARAM_FOCALLENGTH, &focalLength);
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return focalLength;
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}
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double
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nsDOMCameraControl::GetFocusDistanceNear(ErrorResult& aRv)
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{
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double distance;
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aRv = mCameraControl->Get(CAMERA_PARAM_FOCUSDISTANCENEAR, &distance);
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return distance;
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}
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double
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nsDOMCameraControl::GetFocusDistanceOptimum(ErrorResult& aRv)
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{
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double distance;
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aRv = mCameraControl->Get(CAMERA_PARAM_FOCUSDISTANCEOPTIMUM, &distance);
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return distance;
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}
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double
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nsDOMCameraControl::GetFocusDistanceFar(ErrorResult& aRv)
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{
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double distance;
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aRv = mCameraControl->Get(CAMERA_PARAM_FOCUSDISTANCEFAR, &distance);
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return distance;
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}
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void
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nsDOMCameraControl::SetExposureCompensation(const Optional<double>& aCompensation, ErrorResult& aRv)
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{
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if (!aCompensation.WasPassed()) {
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// use NaN to switch the camera back into auto mode
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aRv = mCameraControl->Set(CAMERA_PARAM_EXPOSURECOMPENSATION, NAN);
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}
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aRv = mCameraControl->Set(CAMERA_PARAM_EXPOSURECOMPENSATION, aCompensation.Value());
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}
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double
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nsDOMCameraControl::GetExposureCompensation(ErrorResult& aRv)
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{
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double compensation;
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aRv = mCameraControl->Get(CAMERA_PARAM_EXPOSURECOMPENSATION, &compensation);
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return compensation;
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}
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already_AddRefed<nsICameraShutterCallback>
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nsDOMCameraControl::GetOnShutter(ErrorResult& aRv)
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{
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nsCOMPtr<nsICameraShutterCallback> cb;
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aRv = mCameraControl->Get(getter_AddRefs(cb));
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return cb.forget();
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}
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void
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nsDOMCameraControl::SetOnShutter(nsICameraShutterCallback* aOnShutter,
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ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(aOnShutter);
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}
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/* attribute nsICameraClosedCallback onClosed; */
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already_AddRefed<nsICameraClosedCallback>
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nsDOMCameraControl::GetOnClosed(ErrorResult& aRv)
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{
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nsCOMPtr<nsICameraClosedCallback> onClosed;
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aRv = mCameraControl->Get(getter_AddRefs(onClosed));
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return onClosed.forget();
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}
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void
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nsDOMCameraControl::SetOnClosed(nsICameraClosedCallback* aOnClosed,
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ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(aOnClosed);
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}
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already_AddRefed<nsICameraRecorderStateChange>
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nsDOMCameraControl::GetOnRecorderStateChange(ErrorResult& aRv)
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{
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nsCOMPtr<nsICameraRecorderStateChange> cb;
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aRv = mCameraControl->Get(getter_AddRefs(cb));
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return cb.forget();
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}
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void
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nsDOMCameraControl::SetOnRecorderStateChange(nsICameraRecorderStateChange* aOnRecorderStateChange,
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ErrorResult& aRv)
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{
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aRv = mCameraControl->Set(aOnRecorderStateChange);
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}
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void
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nsDOMCameraControl::StartRecording(JSContext* aCx,
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JS::Handle<JS::Value> aOptions,
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nsDOMDeviceStorage& storageArea,
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const nsAString& filename,
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nsICameraStartRecordingCallback* onSuccess,
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const Optional<nsICameraErrorCallback*>& onError,
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ErrorResult& aRv)
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{
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MOZ_ASSERT(onSuccess, "no onSuccess handler passed");
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mozilla::idl::CameraStartRecordingOptions options;
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// Default values, until the dictionary parser can handle them.
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options.rotation = 0;
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options.maxFileSizeBytes = 0;
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options.maxVideoLengthMs = 0;
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aRv = options.Init(aCx, aOptions.address());
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if (aRv.Failed()) {
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return;
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}
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nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
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if (!obs) {
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NS_WARNING("Could not get the Observer service for CameraControl::StartRecording.");
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aRv.Throw(NS_ERROR_FAILURE);
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return;
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}
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obs->NotifyObservers(nullptr,
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"recording-device-events",
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NS_LITERAL_STRING("starting").get());
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// Forward recording events to parent process.
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// The events are gathered in chrome process and used for recording indicator
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if (XRE_GetProcessType() != GeckoProcessType_Default) {
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unused << ContentChild::GetSingleton()->SendRecordingDeviceEvents(NS_LITERAL_STRING("starting"));
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}
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#ifdef MOZ_B2G
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if (!mAudioChannelAgent) {
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mAudioChannelAgent = do_CreateInstance("@mozilla.org/audiochannelagent;1");
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if (mAudioChannelAgent) {
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// Camera app will stop recording when it falls to the background, so no callback is necessary.
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mAudioChannelAgent->Init(AUDIO_CHANNEL_CONTENT, nullptr);
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// Video recording doesn't output any sound, so it's not necessary to check canPlay.
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bool canPlay;
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mAudioChannelAgent->StartPlaying(&canPlay);
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}
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}
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#endif
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nsCOMPtr<nsIFile> folder;
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aRv = storageArea.GetRootDirectoryForFile(filename, getter_AddRefs(folder));
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if (aRv.Failed()) {
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return;
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}
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aRv = mCameraControl->StartRecording(&options, folder, filename, onSuccess,
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onError.WasPassed() ? onError.Value() : nullptr);
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}
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void
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nsDOMCameraControl::StopRecording(ErrorResult& aRv)
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{
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nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
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if (!obs) {
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NS_WARNING("Could not get the Observer service for CameraControl::StopRecording.");
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aRv.Throw(NS_ERROR_FAILURE);
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}
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obs->NotifyObservers(nullptr,
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"recording-device-events",
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NS_LITERAL_STRING("shutdown").get());
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// Forward recording events to parent process.
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// The events are gathered in chrome process and used for recording indicator
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if (XRE_GetProcessType() != GeckoProcessType_Default) {
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unused << ContentChild::GetSingleton()->SendRecordingDeviceEvents(NS_LITERAL_STRING("shutdown"));
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}
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#ifdef MOZ_B2G
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if (mAudioChannelAgent) {
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mAudioChannelAgent->StopPlaying();
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mAudioChannelAgent = nullptr;
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}
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#endif
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aRv = mCameraControl->StopRecording();
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}
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void
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nsDOMCameraControl::GetPreviewStream(JSContext* aCx,
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JS::Handle<JS::Value> aOptions,
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nsICameraPreviewStreamCallback* onSuccess,
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const Optional<nsICameraErrorCallback*>& onError,
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ErrorResult& aRv)
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{
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mozilla::idl::CameraSize size;
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aRv = size.Init(aCx, aOptions.address());
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if (aRv.Failed()) {
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return;
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}
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aRv = mCameraControl->GetPreviewStream(size, onSuccess,
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onError.WasPassed()
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? onError.Value() : nullptr);
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}
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void
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nsDOMCameraControl::ResumePreview(ErrorResult& aRv)
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{
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aRv = mCameraControl->StartPreview(nullptr);
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}
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already_AddRefed<nsICameraPreviewStateChange>
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nsDOMCameraControl::GetOnPreviewStateChange() const
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{
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nsCOMPtr<nsICameraPreviewStateChange> cb;
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mCameraControl->Get(getter_AddRefs(cb));
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return cb.forget();
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}
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void
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nsDOMCameraControl::SetOnPreviewStateChange(nsICameraPreviewStateChange* aCb)
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{
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mCameraControl->Set(aCb);
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}
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void
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nsDOMCameraControl::AutoFocus(nsICameraAutoFocusCallback* onSuccess,
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const Optional<nsICameraErrorCallback*>& onError,
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ErrorResult& aRv)
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{
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aRv = mCameraControl->AutoFocus(onSuccess,
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onError.WasPassed() ? onError.Value() : nullptr);
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}
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void
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nsDOMCameraControl::TakePicture(JSContext* aCx,
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const CameraPictureOptions& aOptions,
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nsICameraTakePictureCallback* onSuccess,
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const Optional<nsICameraErrorCallback*>& aOnError,
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ErrorResult& aRv)
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{
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mozilla::idl::CameraSize size;
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mozilla::idl::CameraPosition pos;
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aRv = size.Init(aCx, &aOptions.mPictureSize);
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if (aRv.Failed()) {
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return;
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}
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/**
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* Default values, until the dictionary parser can handle them.
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* NaN indicates no value provided.
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*/
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pos.latitude = NAN;
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pos.longitude = NAN;
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pos.altitude = NAN;
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pos.timestamp = NAN;
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aRv = pos.Init(aCx, &aOptions.mPosition);
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if (aRv.Failed()) {
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return;
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}
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nsICameraErrorCallback* onError =
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aOnError.WasPassed() ? aOnError.Value() : nullptr;
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aRv = mCameraControl->TakePicture(size, aOptions.mRotation,
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aOptions.mFileFormat, pos,
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aOptions.mDateTime, onSuccess, onError);
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}
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void
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nsDOMCameraControl::GetPreviewStreamVideoMode(JSContext* aCx,
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JS::Handle<JS::Value> aOptions,
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nsICameraPreviewStreamCallback* onSuccess,
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const Optional<nsICameraErrorCallback*>& onError,
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ErrorResult& aRv)
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{
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mozilla::idl::CameraRecorderOptions options;
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aRv = options.Init(aCx, aOptions.address());
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if (aRv.Failed()) {
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return;
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}
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aRv = mCameraControl->GetPreviewStreamVideoMode(&options, onSuccess,
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onError.WasPassed()
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? onError.Value() : nullptr);
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}
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void
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nsDOMCameraControl::ReleaseHardware(const Optional<nsICameraReleaseCallback*>& onSuccess,
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const Optional<nsICameraErrorCallback*>& onError,
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ErrorResult& aRv)
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{
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aRv =
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mCameraControl->ReleaseHardware(
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onSuccess.WasPassed() ? onSuccess.Value() : nullptr,
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onError.WasPassed() ? onError.Value() : nullptr);
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}
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class GetCameraResult : public nsRunnable
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{
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public:
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GetCameraResult(nsDOMCameraControl* aDOMCameraControl,
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nsresult aResult,
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const nsMainThreadPtrHandle<nsICameraGetCameraCallback>& onSuccess,
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const nsMainThreadPtrHandle<nsICameraErrorCallback>& onError,
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uint64_t aWindowId)
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: mDOMCameraControl(aDOMCameraControl)
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, mResult(aResult)
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, mOnSuccessCb(onSuccess)
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, mOnErrorCb(onError)
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, mWindowId(aWindowId)
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{ }
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NS_IMETHOD Run()
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{
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MOZ_ASSERT(NS_IsMainThread());
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if (nsDOMCameraManager::IsWindowStillActive(mWindowId)) {
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DOM_CAMERA_LOGT("%s : this=%p -- BEFORE CALLBACK\n", __func__, this);
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if (NS_FAILED(mResult)) {
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if (mOnErrorCb.get()) {
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mOnErrorCb->HandleEvent(NS_LITERAL_STRING("FAILURE"));
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}
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} else {
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if (mOnSuccessCb.get()) {
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mOnSuccessCb->HandleEvent(mDOMCameraControl);
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}
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}
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DOM_CAMERA_LOGT("%s : this=%p -- AFTER CALLBACK\n", __func__, this);
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}
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/**
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* Finally, release the extra reference to the DOM-facing camera control.
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* See the nsDOMCameraControl constructor for the corresponding call to
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* NS_ADDREF_THIS().
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*/
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NS_RELEASE(mDOMCameraControl);
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return NS_OK;
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}
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protected:
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/**
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* 'mDOMCameraControl' is a raw pointer to a previously ADDREF()ed object,
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* which is released in Run().
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*/
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nsDOMCameraControl* mDOMCameraControl;
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nsresult mResult;
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nsMainThreadPtrHandle<nsICameraGetCameraCallback> mOnSuccessCb;
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nsMainThreadPtrHandle<nsICameraErrorCallback> mOnErrorCb;
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uint64_t mWindowId;
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};
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nsresult
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nsDOMCameraControl::Result(nsresult aResult,
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const nsMainThreadPtrHandle<nsICameraGetCameraCallback>& onSuccess,
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|
const nsMainThreadPtrHandle<nsICameraErrorCallback>& onError,
|
|
uint64_t aWindowId)
|
|
{
|
|
nsCOMPtr<GetCameraResult> getCameraResult = new GetCameraResult(this, aResult, onSuccess, onError, aWindowId);
|
|
return NS_DispatchToMainThread(getCameraResult);
|
|
}
|
|
|
|
void
|
|
nsDOMCameraControl::Shutdown()
|
|
{
|
|
DOM_CAMERA_LOGI("%s:%d\n", __func__, __LINE__);
|
|
mCameraControl->Shutdown();
|
|
}
|
|
|
|
nsRefPtr<ICameraControl>
|
|
nsDOMCameraControl::GetNativeCameraControl()
|
|
{
|
|
return mCameraControl;
|
|
}
|