third_party/blink/renderer/modules/webdatabase/database_client.cc

/*
 * Copyright (C) 2013 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.
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 * in the documentation and/or other materials provided with the
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "third_party/blink/renderer/modules/webdatabase/database_client.h"

#include "third_party/blink/public/platform/web_content_settings_client.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/page/page.h"
#include "third_party/blink/renderer/modules/webdatabase/database.h"
#include "third_party/blink/renderer/modules/webdatabase/inspector_database_agent.h"

namespace blink {

DatabaseClient::DatabaseClient() : inspector_agent_(nullptr) {}

void DatabaseClient::Trace(blink::Visitor* visitor) {
  visitor->Trace(inspector_agent_);
  Supplement<Page>::Trace(visitor);
}

DatabaseClient* DatabaseClient::FromPage(Page* page) {
  return Supplement<Page>::From<DatabaseClient>(page);
}

DatabaseClient* DatabaseClient::From(ExecutionContext* context) {
  return DatabaseClient::FromPage(To<Document>(context)->GetPage());
}

const char DatabaseClient::kSupplementName[] = "DatabaseClient";

bool DatabaseClient::AllowDatabase(ExecutionContext* context,
                                   const String& name,
                                   const String& display_name,
                                   unsigned estimated_size) {
  DCHECK(context->IsContextThread());
  Document* document = To<Document>(context);
  if (auto* client = document->GetFrame()->GetContentSettingsClient())
    return client->AllowDatabase(name, display_name, estimated_size);
  return true;
}

void DatabaseClient::DidOpenDatabase(blink::Database* database,
                                     const String& domain,
                                     const String& name,
                                     const String& version) {
  if (inspector_agent_)
    inspector_agent_->DidOpenDatabase(database, domain, name, version);
}

void DatabaseClient::SetInspectorAgent(InspectorDatabaseAgent* agent) {
  // TODO(dgozman): we should not set agent twice, but it's happening in OOPIF
  // case.
  inspector_agent_ = agent;
}

void ProvideDatabaseClientTo(Page& page, DatabaseClient* client) {
  page.ProvideSupplement(client);
}

}  // namespace blink