1 files changed, 249 insertions, 0 deletions
diff --git a/dom/geolocation/Geolocation.h b/dom/geolocation/Geolocation.h
new file mode 100644
index 0000000000..7e1af00d05
--- /dev/null
+++ b/dom/geolocation/Geolocation.h
@@ -0,0 +1,249 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_Geolocation_h
+#define mozilla_dom_Geolocation_h
+
+// Microsoft's API Name hackery sucks
+#undef CreateEvent
+
+#include "mozilla/StaticPtr.h"
+#include "nsCOMPtr.h"
+#include "nsTArray.h"
+#include "nsITimer.h"
+#include "nsIObserver.h"
+#include "nsIWeakReferenceUtils.h"
+#include "nsWrapperCache.h"
+
+#include "nsCycleCollectionParticipant.h"
+
+#include "GeolocationPosition.h"
+#include "GeolocationCoordinates.h"
+#include "nsIDOMGeoPosition.h"
+#include "nsIDOMGeoPositionCallback.h"
+#include "nsIDOMGeoPositionErrorCallback.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/GeolocationBinding.h"
+#include "mozilla/dom/CallbackObject.h"
+
+#include "nsIGeolocationProvider.h"
+#include "mozilla/Attributes.h"
+
+class nsGeolocationService;
+class nsGeolocationRequest;
+
+namespace mozilla::dom {
+class Geolocation;
+using GeoPositionCallback =
+    CallbackObjectHolder<PositionCallback, nsIDOMGeoPositionCallback>;
+using GeoPositionErrorCallback =
+    CallbackObjectHolder<PositionErrorCallback, nsIDOMGeoPositionErrorCallback>;
+}  // namespace mozilla::dom
+
+struct CachedPositionAndAccuracy {
+  nsCOMPtr<nsIDOMGeoPosition> position;
+  bool isHighAccuracy;
+};
+
+/**
+ * Singleton that manages the geolocation provider
+ */
+class nsGeolocationService final : public nsIGeolocationUpdate,
+                                   public nsIObserver {
+ public:
+  static already_AddRefed<nsGeolocationService> GetGeolocationService();
+  static mozilla::StaticRefPtr<nsGeolocationService> sService;
+
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIGEOLOCATIONUPDATE
+  NS_DECL_NSIOBSERVER
+
+  nsGeolocationService() = default;
+
+  nsresult Init();
+
+  // Management of the Geolocation objects
+  void AddLocator(mozilla::dom::Geolocation* locator);
+  void RemoveLocator(mozilla::dom::Geolocation* locator);
+
+  void SetCachedPosition(nsIDOMGeoPosition* aPosition);
+  CachedPositionAndAccuracy GetCachedPosition();
+
+  // Find and startup a geolocation device (gps, nmea, etc.)
+  MOZ_CAN_RUN_SCRIPT nsresult StartDevice();
+
+  // Stop the started geolocation device (gps, nmea, etc.)
+  void StopDevice();
+
+  // create, or reinitialize the callback timer
+  void SetDisconnectTimer();
+
+  // Update the accuracy and notify the provider if changed
+  void UpdateAccuracy(bool aForceHigh = false);
+  bool HighAccuracyRequested();
+
+ private:
+  ~nsGeolocationService();
+
+  // Disconnect timer.  When this timer expires, it clears all pending callbacks
+  // and closes down the provider, unless we are watching a point, and in that
+  // case, we disable the disconnect timer.
+  nsCOMPtr<nsITimer> mDisconnectTimer;
+
+  // The object providing geo location information to us.
+  nsCOMPtr<nsIGeolocationProvider> mProvider;
+
+  // mGeolocators are not owned here.  Their constructor
+  // adds them to this list, and their destructor removes
+  // them from this list.
+  nsTArray<mozilla::dom::Geolocation*> mGeolocators;
+
+  // This is the last geo position that we have seen.
+  CachedPositionAndAccuracy mLastPosition;
+
+  // Current state of requests for higher accuracy
+  bool mHigherAccuracy = false;
+};
+
+namespace mozilla::dom {
+
+/**
+ * Can return a geolocation info
+ */
+class Geolocation final : public nsIGeolocationUpdate, public nsWrapperCache {
+ public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Geolocation)
+
+  NS_DECL_NSIGEOLOCATIONUPDATE
+
+  Geolocation();
+
+  nsresult Init(nsPIDOMWindowInner* aContentDom = nullptr);
+
+  nsPIDOMWindowInner* GetParentObject() const;
+  virtual JSObject* WrapObject(JSContext* aCtx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  MOZ_CAN_RUN_SCRIPT
+  int32_t WatchPosition(PositionCallback& aCallback,
+                        PositionErrorCallback* aErrorCallback,
+                        const PositionOptions& aOptions, CallerType aCallerType,
+                        ErrorResult& aRv);
+
+  MOZ_CAN_RUN_SCRIPT
+  void GetCurrentPosition(PositionCallback& aCallback,
+                          PositionErrorCallback* aErrorCallback,
+                          const PositionOptions& aOptions,
+                          CallerType aCallerType, ErrorResult& aRv);
+  void ClearWatch(int32_t aWatchId);
+
+  // A WatchPosition for C++ use. Returns 0 if we failed to actually watch.
+  MOZ_CAN_RUN_SCRIPT
+  int32_t WatchPosition(nsIDOMGeoPositionCallback* aCallback,
+                        nsIDOMGeoPositionErrorCallback* aErrorCallback,
+                        UniquePtr<PositionOptions>&& aOptions);
+
+  // Returns true if any of the callbacks are repeating
+  bool HasActiveCallbacks();
+
+  // Register an allowed request
+  void NotifyAllowedRequest(nsGeolocationRequest* aRequest);
+
+  // Remove request from all callbacks arrays
+  void RemoveRequest(nsGeolocationRequest* request);
+
+  // Check if there is already ClearWatch called for current
+  // request & clear if yes
+  bool ClearPendingRequest(nsGeolocationRequest* aRequest);
+
+  // Shutting down.
+  void Shutdown();
+
+  // Getter for the principal that this Geolocation was loaded from
+  nsIPrincipal* GetPrincipal() { return mPrincipal; }
+
+  // Getter for the window that this Geolocation is owned by
+  nsIWeakReference* GetOwner() { return mOwner; }
+
+  // Check to see if the window still exists
+  bool WindowOwnerStillExists();
+
+  // Check to see if any active request requires high accuracy
+  bool HighAccuracyRequested();
+
+  // Get the singleton non-window Geolocation instance.  This never returns
+  // null.
+  static already_AddRefed<Geolocation> NonWindowSingleton();
+
+ private:
+  ~Geolocation();
+
+  MOZ_CAN_RUN_SCRIPT
+  nsresult GetCurrentPosition(GeoPositionCallback aCallback,
+                              GeoPositionErrorCallback aErrorCallback,
+                              UniquePtr<PositionOptions>&& aOptions,
+                              CallerType aCallerType);
+
+  MOZ_CAN_RUN_SCRIPT
+  int32_t WatchPosition(GeoPositionCallback aCallback,
+                        GeoPositionErrorCallback aErrorCallback,
+                        UniquePtr<PositionOptions>&& aOptions,
+                        CallerType aCallerType, ErrorResult& aRv);
+
+  bool RegisterRequestWithPrompt(nsGeolocationRequest* request);
+
+  // Check if clearWatch is already called
+  bool IsAlreadyCleared(nsGeolocationRequest* aRequest);
+
+  // Returns whether the Geolocation object should block requests
+  // within a context that is not secure.
+  bool ShouldBlockInsecureRequests() const;
+
+  // Checks if the request is in a content window that is fully active, or the
+  // request is coming from a chrome window.
+  bool IsFullyActiveOrChrome();
+
+  // Two callback arrays.  The first |mPendingCallbacks| holds objects for only
+  // one callback and then they are released/removed from the array.  The second
+  // |mWatchingCallbacks| holds objects until the object is explictly removed or
+  // there is a page change. All requests held by either array are active, that
+  // is, they have been allowed and expect to be fulfilled.
+
+  nsTArray<RefPtr<nsGeolocationRequest> > mPendingCallbacks;
+  nsTArray<RefPtr<nsGeolocationRequest> > mWatchingCallbacks;
+
+  // window that this was created for.  Weak reference.
+  nsWeakPtr mOwner;
+
+  // where the content was loaded from
+  nsCOMPtr<nsIPrincipal> mPrincipal;
+
+  // the protocols we want to measure
+  enum class ProtocolType : uint8_t { OTHER, HTTP, HTTPS };
+
+  // the protocol used to load the content
+  ProtocolType mProtocolType;
+
+  // owning back pointer.
+  RefPtr<nsGeolocationService> mService;
+
+  // Watch ID
+  uint32_t mLastWatchId;
+
+  // Pending requests are used when the service is not ready
+  nsTArray<RefPtr<nsGeolocationRequest> > mPendingRequests;
+
+  // Array containing already cleared watch IDs
+  nsTArray<int32_t> mClearedWatchIDs;
+
+  // Our cached non-window singleton.
+  static mozilla::StaticRefPtr<Geolocation> sNonWindowSingleton;
+};
+
+}  // namespace mozilla::dom
+
+#endif /* mozilla_dom_Geolocation_h */