IDBObserver: Lifetime Management: Adding Observer

content/child/indexed_db/webidbdatabase_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/child/indexed_db/webidbdatabase_impl.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <vector>
 
 #include "content/child/indexed_db/indexed_db_dispatcher.h"
 #include "content/child/indexed_db/indexed_db_key_builders.h"
 #include "content/child/thread_safe_sender.h"
 #include "content/child/worker_thread_registry.h"
 #include "content/common/indexed_db/indexed_db_messages.h"
 #include "third_party/WebKit/public/platform/WebBlobInfo.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBKeyPath.h"
 #include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBMetadata.h"
+// #include "third_party/WebKit/Source/modules/indexeddb/IDBObserver.h"
 
+using blink::IDBObserver;
 using blink::WebBlobInfo;
 using blink::WebIDBCallbacks;
 using blink::WebIDBCursor;
 using blink::WebIDBDatabase;
 using blink::WebIDBDatabaseCallbacks;
 using blink::WebIDBMetadata;
 using blink::WebIDBKey;
 using blink::WebIDBKeyPath;
 using blink::WebIDBKeyRange;
 using blink::WebString;
@@ skipping 60 matching lines @@
   dispatcher->RequestIDBDatabaseClose(ipc_database_id_,
                                       ipc_database_callbacks_id_);
 }
 
 void WebIDBDatabaseImpl::versionChangeIgnored() {
   IndexedDBDispatcher* dispatcher =
       IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
   dispatcher->NotifyIDBDatabaseVersionChangeIgnored(ipc_database_id_);
 }
 
+void WebIDBDatabaseImpl::observe(blink::IDBObserver* observer,
+                                 long long transaction_id) {
+  IndexedDBDispatcher* dispatcher =
+      IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
+  int32_t observer_id =
+      dispatcher->AddIDBObserver(ipc_database_id_, transaction_id, observer);
+  observers_id_.push_back(observer_id);
+}
+
+void WebIDBDatabaseImpl::unobserve(blink::IDBObserver* observer) {
+  IndexedDBDispatcher* dispatcher =
+      IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
+  std::vector<int32_t> remove_observers =
+      dispatcher->RemoveIDBObserver(ipc_database_id_, observer);
+  // TODO(palakj): Remove id from observes_id_
+}
+
 void WebIDBDatabaseImpl::get(long long transaction_id,
                              long long object_store_id,
                              long long index_id,
                              const WebIDBKeyRange& key_range,
                              bool key_only,
                              WebIDBCallbacks* callbacks) {
   IndexedDBDispatcher* dispatcher =
       IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
   dispatcher->RequestIDBDatabaseGet(ipc_database_id_,
                                     transaction_id,
@@ skipping 178 matching lines @@
 
 void WebIDBDatabaseImpl::ackReceivedBlobs(const WebVector<WebString>& uuids) {
   DCHECK(uuids.size());
   std::vector<std::string> param(uuids.size());
   for (size_t i = 0; i < uuids.size(); ++i)
     param[i] = uuids[i].latin1().data();
   thread_safe_sender_->Send(new IndexedDBHostMsg_AckReceivedBlobs(param));
 }
 
 }  // namespace content