third_party/WebKit/Source/modules/webdatabase/SQLTransactionClient.cpp

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "modules/webdatabase/SQLTransactionClient.h"

#include "core/dom/ExecutionContext.h"
#include "core/dom/ExecutionContextTask.h"
#include "modules/webdatabase/Database.h"
#include "modules/webdatabase/DatabaseContext.h"
#include "platform/weborigin/SecurityOrigin.h"
#include "public/platform/Platform.h"
#include "public/platform/WebDatabaseObserver.h"
#include "public/platform/WebSecurityOrigin.h"
#include "public/platform/WebTraceLocation.h"
#include "wtf/Functional.h"

namespace blink {

namespace {

void databaseModified(const WebSecurityOrigin& origin,
                      const String& databaseName) {
  if (Platform::current()->databaseObserver())
    Platform::current()->databaseObserver()->databaseModified(origin,
                                                              databaseName);
}

void databaseModifiedCrossThread(const String& originString,
                                 const String& databaseName) {
  databaseModified(WebSecurityOrigin::createFromString(originString),
                   databaseName);
}

}  // namespace

void SQLTransactionClient::didCommitWriteTransaction(Database* database) {
  String databaseName = database->stringIdentifier();
  ExecutionContext* executionContext =
      database->getDatabaseContext()->getExecutionContext();
  if (!executionContext->isContextThread()) {
    executionContext->postTask(
        BLINK_FROM_HERE,
        createCrossThreadTask(
            &databaseModifiedCrossThread,
            executionContext->getSecurityOrigin()->toRawString(),
            databaseName));
  } else {
    databaseModified(WebSecurityOrigin(executionContext->getSecurityOrigin()),
                     databaseName);
  }
}

bool SQLTransactionClient::didExceedQuota(Database* database) {
  // Chromium does not allow users to manually change the quota for an origin
  // (for now, at least).  Don't do anything.
  ASSERT(
      database->getDatabaseContext()->getExecutionContext()->isContextThread());
  return false;
}

}  // namespace blink