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// Copyright 2014 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 "modules/storage/DOMWindowStorageController.h"
#include "core/dom/Document.h"
#include "core/events/Event.h"
#include "core/page/Page.h"
#include "modules/storage/DOMWindowStorage.h"
namespace blink {
DOMWindowStorageController::DOMWindowStorageController(Document& document)
: Supplement<Document>(document) {
document.domWindow()->registerEventListenerObserver(this);
}
DEFINE_TRACE(DOMWindowStorageController) {
Supplement<Document>::trace(visitor);
}
// static
const char* DOMWindowStorageController::supplementName() {
return "DOMWindowStorageController";
}
// static
DOMWindowStorageController& DOMWindowStorageController::from(
Document& document) {
DOMWindowStorageController* controller =
static_cast<DOMWindowStorageController*>(
Supplement<Document>::from(document, supplementName()));
if (!controller) {
controller = new DOMWindowStorageController(document);
Supplement<Document>::provideTo(document, supplementName(), controller);
}
return *controller;
}
void DOMWindowStorageController::didAddEventListener(
LocalDOMWindow* window,
const AtomicString& eventType) {
if (eventType == EventTypeNames::storage) {
// Creating these blink::Storage objects informs the system that we'd like
// to receive notifications about storage events that might be triggered in
// other processes. Rather than subscribe to these notifications explicitly,
// we subscribe to them implicitly to simplify the work done by the system.
DOMWindowStorage::from(*window).localStorage(IGNORE_EXCEPTION_FOR_TESTING);
DOMWindowStorage::from(*window).sessionStorage(
IGNORE_EXCEPTION_FOR_TESTING);
}
}
} // namespace blink
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