Issue #1390 - Get rid of the Presentation API

1 files changed, 0 insertions, 401 deletions

diff --git a/dom/presentation/PresentationServiceBase.h b/dom/presentation/PresentationServiceBase.h
deleted file mode 100644
index 227e95430..000000000
--- a/dom/presentation/PresentationServiceBase.h
+++ /dev/null
@@ -1,401 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set sw=2 ts=8 et ft=cpp : */
-/* 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_PresentationServiceBase_h
-#define mozilla_dom_PresentationServiceBase_h
-
-#include "mozilla/Unused.h"
-#include "nsClassHashtable.h"
-#include "nsCOMArray.h"
-#include "nsIPresentationListener.h"
-#include "nsIPresentationService.h"
-#include "nsRefPtrHashtable.h"
-#include "nsString.h"
-#include "nsTArray.h"
-
-namespace mozilla {
-namespace dom {
-
-template<class T>
-class PresentationServiceBase
-{
-public:
-  PresentationServiceBase() = default;
-
-  already_AddRefed<T>
-  GetSessionInfo(const nsAString& aSessionId, const uint8_t aRole)
-  {
-    MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
-               aRole == nsIPresentationService::ROLE_RECEIVER);
-
-    RefPtr<T> info;
-    if (aRole == nsIPresentationService::ROLE_CONTROLLER) {
-      return mSessionInfoAtController.Get(aSessionId, getter_AddRefs(info)) ?
-             info.forget() : nullptr;
-    } else {
-      return mSessionInfoAtReceiver.Get(aSessionId, getter_AddRefs(info)) ?
-             info.forget() : nullptr;
-    }
-  }
-
-protected:
-  class SessionIdManager final
-  {
-  public:
-    explicit SessionIdManager()
-    {
-      MOZ_COUNT_CTOR(SessionIdManager);
-    }
-
-    ~SessionIdManager()
-    {
-      MOZ_COUNT_DTOR(SessionIdManager);
-    }
-
-    nsresult GetWindowId(const nsAString& aSessionId, uint64_t* aWindowId)
-    {
-      MOZ_ASSERT(NS_IsMainThread());
-
-      if (mRespondingWindowIds.Get(aSessionId, aWindowId)) {
-        return NS_OK;
-      }
-      return NS_ERROR_NOT_AVAILABLE;
-    }
-
-    nsresult GetSessionIds(uint64_t aWindowId, nsTArray<nsString>& aSessionIds)
-    {
-      MOZ_ASSERT(NS_IsMainThread());
-
-      nsTArray<nsString>* sessionIdArray;
-      if (!mRespondingSessionIds.Get(aWindowId, &sessionIdArray)) {
-        return NS_ERROR_INVALID_ARG;
-      }
-
-      aSessionIds.Assign(*sessionIdArray);
-      return NS_OK;
-    }
-
-    void AddSessionId(uint64_t aWindowId, const nsAString& aSessionId)
-    {
-      MOZ_ASSERT(NS_IsMainThread());
-
-      if (NS_WARN_IF(aWindowId == 0)) {
-        return;
-      }
-
-      nsTArray<nsString>* sessionIdArray;
-      if (!mRespondingSessionIds.Get(aWindowId, &sessionIdArray)) {
-        sessionIdArray = new nsTArray<nsString>();
-        mRespondingSessionIds.Put(aWindowId, sessionIdArray);
-      }
-
-      sessionIdArray->AppendElement(nsString(aSessionId));
-      mRespondingWindowIds.Put(aSessionId, aWindowId);
-    }
-
-    void RemoveSessionId(const nsAString& aSessionId)
-    {
-      MOZ_ASSERT(NS_IsMainThread());
-
-      uint64_t windowId = 0;
-      if (mRespondingWindowIds.Get(aSessionId, &windowId)) {
-        mRespondingWindowIds.Remove(aSessionId);
-        nsTArray<nsString>* sessionIdArray;
-        if (mRespondingSessionIds.Get(windowId, &sessionIdArray)) {
-          sessionIdArray->RemoveElement(nsString(aSessionId));
-          if (sessionIdArray->IsEmpty()) {
-            mRespondingSessionIds.Remove(windowId);
-          }
-        }
-      }
-    }
-
-    nsresult UpdateWindowId(const nsAString& aSessionId, const uint64_t aWindowId)
-    {
-      MOZ_ASSERT(NS_IsMainThread());
-
-      RemoveSessionId(aSessionId);
-      AddSessionId(aWindowId, aSessionId);
-      return NS_OK;
-    }
-
-    void Clear()
-    {
-      mRespondingSessionIds.Clear();
-      mRespondingWindowIds.Clear();
-    }
-
-  private:
-    nsClassHashtable<nsUint64HashKey, nsTArray<nsString>> mRespondingSessionIds;
-    nsDataHashtable<nsStringHashKey, uint64_t> mRespondingWindowIds;
-  };
-
-  class AvailabilityManager final
-  {
-  public:
-    explicit AvailabilityManager()
-    {
-      MOZ_COUNT_CTOR(AvailabilityManager);
-    }
-
-    ~AvailabilityManager()
-    {
-      MOZ_COUNT_DTOR(AvailabilityManager);
-    }
-
-    void AddAvailabilityListener(
-                               const nsTArray<nsString>& aAvailabilityUrls,
-                               nsIPresentationAvailabilityListener* aListener)
-    {
-      nsTArray<nsString> dummy;
-      AddAvailabilityListener(aAvailabilityUrls, aListener, dummy);
-    }
-
-    void AddAvailabilityListener(
-                               const nsTArray<nsString>& aAvailabilityUrls,
-                               nsIPresentationAvailabilityListener* aListener,
-                               nsTArray<nsString>& aAddedUrls)
-    {
-      if (!aListener) {
-        MOZ_ASSERT(false, "aListener should not be null.");
-        return;
-      }
-
-      if (aAvailabilityUrls.IsEmpty()) {
-        MOZ_ASSERT(false, "aAvailabilityUrls should not be empty.");
-        return;
-      }
-
-      aAddedUrls.Clear();
-      nsTArray<nsString> knownAvailableUrls;
-      for (const auto& url : aAvailabilityUrls) {
-        AvailabilityEntry* entry;
-        if (!mAvailabilityUrlTable.Get(url, &entry)) {
-          entry = new AvailabilityEntry();
-          mAvailabilityUrlTable.Put(url, entry);
-          aAddedUrls.AppendElement(url);
-        }
-        if (!entry->mListeners.Contains(aListener)) {
-          entry->mListeners.AppendElement(aListener);
-        }
-        if (entry->mAvailable) {
-          knownAvailableUrls.AppendElement(url);
-        }
-      }
-
-      if (!knownAvailableUrls.IsEmpty()) {
-        Unused <<
-          NS_WARN_IF(
-            NS_FAILED(aListener->NotifyAvailableChange(knownAvailableUrls,
-                                                       true)));
-      } else {
-        // If we can't find any known available url and there is no newly
-        // added url, we still need to notify the listener of the result.
-        // So, the promise returned by |getAvailability| can be resolved.
-        if (aAddedUrls.IsEmpty()) {
-          Unused <<
-            NS_WARN_IF(
-              NS_FAILED(aListener->NotifyAvailableChange(aAvailabilityUrls,
-                                                         false)));
-        }
-      }
-    }
-
-    void RemoveAvailabilityListener(
-                               const nsTArray<nsString>& aAvailabilityUrls,
-                               nsIPresentationAvailabilityListener* aListener)
-    {
-      nsTArray<nsString> dummy;
-      RemoveAvailabilityListener(aAvailabilityUrls, aListener, dummy);
-    }
-
-    void RemoveAvailabilityListener(
-                               const nsTArray<nsString>& aAvailabilityUrls,
-                               nsIPresentationAvailabilityListener* aListener,
-                               nsTArray<nsString>& aRemovedUrls)
-    {
-      if (!aListener) {
-        MOZ_ASSERT(false, "aListener should not be null.");
-        return;
-      }
-
-      if (aAvailabilityUrls.IsEmpty()) {
-        MOZ_ASSERT(false, "aAvailabilityUrls should not be empty.");
-        return;
-      }
-
-      aRemovedUrls.Clear();
-      for (const auto& url : aAvailabilityUrls) {
-        AvailabilityEntry* entry;
-        if (mAvailabilityUrlTable.Get(url, &entry)) {
-          entry->mListeners.RemoveElement(aListener);
-          if (entry->mListeners.IsEmpty()) {
-            mAvailabilityUrlTable.Remove(url);
-            aRemovedUrls.AppendElement(url);
-          }
-        }
-      }
-    }
-
-    nsresult DoNotifyAvailableChange(const nsTArray<nsString>& aAvailabilityUrls,
-                                     bool aAvailable)
-    {
-      typedef nsClassHashtable<nsISupportsHashKey,
-                               nsTArray<nsString>> ListenerToUrlsMap;
-      ListenerToUrlsMap availabilityListenerTable;
-      // Create a mapping from nsIPresentationAvailabilityListener to
-      // availabilityUrls.
-      for (auto it = mAvailabilityUrlTable.ConstIter(); !it.Done(); it.Next()) {
-        if (aAvailabilityUrls.Contains(it.Key())) {
-          AvailabilityEntry* entry = it.UserData();
-          entry->mAvailable = aAvailable;
-
-          for (uint32_t i = 0; i < entry->mListeners.Length(); ++i) {
-            nsIPresentationAvailabilityListener* listener =
-              entry->mListeners.ObjectAt(i);
-            nsTArray<nsString>* urlArray;
-            if (!availabilityListenerTable.Get(listener, &urlArray)) {
-              urlArray = new nsTArray<nsString>();
-              availabilityListenerTable.Put(listener, urlArray);
-            }
-            urlArray->AppendElement(it.Key());
-          }
-        }
-      }
-
-      for (auto it = availabilityListenerTable.Iter(); !it.Done(); it.Next()) {
-        auto listener =
-          static_cast<nsIPresentationAvailabilityListener*>(it.Key());
-
-        Unused <<
-          NS_WARN_IF(NS_FAILED(listener->NotifyAvailableChange(*it.UserData(),
-                                                               aAvailable)));
-      }
-      return NS_OK;
-    }
-
-    void GetAvailbilityUrlByAvailability(nsTArray<nsString>& aOutArray,
-                                         bool aAvailable)
-    {
-      aOutArray.Clear();
-
-      for (auto it = mAvailabilityUrlTable.ConstIter(); !it.Done(); it.Next()) {
-        if (it.UserData()->mAvailable == aAvailable) {
-          aOutArray.AppendElement(it.Key());
-        }
-      }
-    }
-
-    void Clear()
-    {
-      mAvailabilityUrlTable.Clear();
-    }
-
-  private:
-    struct AvailabilityEntry
-    {
-      explicit AvailabilityEntry()
-        : mAvailable(false)
-      {}
-
-      bool mAvailable;
-      nsCOMArray<nsIPresentationAvailabilityListener> mListeners;
-    };
-
-    nsClassHashtable<nsStringHashKey, AvailabilityEntry> mAvailabilityUrlTable;
-  };
-
-  virtual ~PresentationServiceBase() = default;
-
-  void Shutdown()
-  {
-    mRespondingListeners.Clear();
-    mControllerSessionIdManager.Clear();
-    mReceiverSessionIdManager.Clear();
-  }
-
-  nsresult GetWindowIdBySessionIdInternal(const nsAString& aSessionId,
-                                          uint8_t aRole,
-                                          uint64_t* aWindowId)
-  {
-    MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
-               aRole == nsIPresentationService::ROLE_RECEIVER);
-
-    if (NS_WARN_IF(!aWindowId)) {
-      return NS_ERROR_INVALID_POINTER;
-    }
-
-    if (aRole == nsIPresentationService::ROLE_CONTROLLER) {
-      return mControllerSessionIdManager.GetWindowId(aSessionId, aWindowId);
-    }
-
-    return mReceiverSessionIdManager.GetWindowId(aSessionId, aWindowId);
-  }
-
-  void AddRespondingSessionId(uint64_t aWindowId,
-                              const nsAString& aSessionId,
-                              uint8_t aRole)
-  {
-    MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
-               aRole == nsIPresentationService::ROLE_RECEIVER);
-
-    if (aRole == nsIPresentationService::ROLE_CONTROLLER) {
-      mControllerSessionIdManager.AddSessionId(aWindowId, aSessionId);
-    } else {
-      mReceiverSessionIdManager.AddSessionId(aWindowId, aSessionId);
-    }
-  }
-
-  void RemoveRespondingSessionId(const nsAString& aSessionId,
-                                 uint8_t aRole)
-  {
-    MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
-               aRole == nsIPresentationService::ROLE_RECEIVER);
-
-    if (aRole == nsIPresentationService::ROLE_CONTROLLER) {
-      mControllerSessionIdManager.RemoveSessionId(aSessionId);
-    } else {
-      mReceiverSessionIdManager.RemoveSessionId(aSessionId);
-    }
-  }
-
-  nsresult UpdateWindowIdBySessionIdInternal(const nsAString& aSessionId,
-                                             uint8_t aRole,
-                                             const uint64_t aWindowId)
-  {
-    MOZ_ASSERT(aRole == nsIPresentationService::ROLE_CONTROLLER ||
-               aRole == nsIPresentationService::ROLE_RECEIVER);
-
-    if (aRole == nsIPresentationService::ROLE_CONTROLLER) {
-      return mControllerSessionIdManager.UpdateWindowId(aSessionId, aWindowId);
-    }
-
-    return mReceiverSessionIdManager.UpdateWindowId(aSessionId, aWindowId);
-  }
-
-  // Store the responding listener based on the window ID of the (in-process or
-  // OOP) receiver page.
-  nsRefPtrHashtable<nsUint64HashKey, nsIPresentationRespondingListener>
-  mRespondingListeners;
-
-  // Store the mapping between the window ID of the in-process and OOP page and the ID
-  // of the responding session. It's used for both controller and receiver page
-  // to retrieve the correspondent session ID. Besides, also keep the mapping
-  // between the responding session ID and the window ID to help look up the
-  // window ID.
-  SessionIdManager mControllerSessionIdManager;
-  SessionIdManager mReceiverSessionIdManager;
-
-  nsRefPtrHashtable<nsStringHashKey, T> mSessionInfoAtController;
-  nsRefPtrHashtable<nsStringHashKey, T> mSessionInfoAtReceiver;
-
-  AvailabilityManager mAvailabilityManager;
-};
-
-} // namespace dom
-} // namespace mozilla
-
-#endif // mozilla_dom_PresentationServiceBase_h