| /* |
| * Copyright (C) 2009 Google Inc. All Rights Reserved. |
| * (C) 2008 Apple Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "StorageAreaProxy.h" |
| |
| #if ENABLE(DOM_STORAGE) |
| |
| #include "DOMWindow.h" |
| #include "Document.h" |
| #include "EventNames.h" |
| #include "ExceptionCode.h" |
| #include "Frame.h" |
| #include "Page.h" |
| #include "PageGroup.h" |
| #include "SecurityOrigin.h" |
| #include "StorageAreaImpl.h" |
| #include "StorageEvent.h" |
| |
| #include "WebFrameImpl.h" |
| #include "WebStorageArea.h" |
| #include "WebString.h" |
| #include "WebURL.h" |
| |
| namespace WebCore { |
| |
| StorageAreaProxy::StorageAreaProxy(WebKit::WebStorageArea* storageArea, StorageType storageType) |
| : m_storageArea(storageArea) |
| , m_storageType(storageType) |
| { |
| } |
| |
| StorageAreaProxy::~StorageAreaProxy() |
| { |
| } |
| |
| unsigned StorageAreaProxy::length() const |
| { |
| return m_storageArea->length(); |
| } |
| |
| String StorageAreaProxy::key(unsigned index) const |
| { |
| return m_storageArea->key(index); |
| } |
| |
| String StorageAreaProxy::getItem(const String& key) const |
| { |
| return m_storageArea->getItem(key); |
| } |
| |
| String StorageAreaProxy::setItem(const String& key, const String& value, ExceptionCode& ec, Frame* frame) |
| { |
| WebKit::WebStorageArea::Result result = WebKit::WebStorageArea::ResultOK; |
| WebKit::WebString oldValue; |
| WebKit::WebFrame* webFrame = WebKit::WebFrameImpl::fromFrame(frame); |
| m_storageArea->setItem(key, value, frame->document()->url(), result, oldValue, webFrame); |
| ec = (result == WebKit::WebStorageArea::ResultOK) ? 0 : QUOTA_EXCEEDED_ERR; |
| String oldValueString = oldValue; |
| if (oldValueString != value && result == WebKit::WebStorageArea::ResultOK) |
| storageEvent(key, oldValue, value, m_storageType, frame->document()->securityOrigin(), frame); |
| return oldValue; |
| } |
| |
| String StorageAreaProxy::removeItem(const String& key, Frame* frame) |
| { |
| WebKit::WebString oldValue; |
| m_storageArea->removeItem(key, frame->document()->url(), oldValue); |
| if (!oldValue.isNull()) |
| storageEvent(key, oldValue, String(), m_storageType, frame->document()->securityOrigin(), frame); |
| return oldValue; |
| } |
| |
| bool StorageAreaProxy::clear(Frame* frame) |
| { |
| bool clearedSomething; |
| m_storageArea->clear(frame->document()->url(), clearedSomething); |
| if (clearedSomething) |
| storageEvent(String(), String(), String(), m_storageType, frame->document()->securityOrigin(), frame); |
| return clearedSomething; |
| } |
| |
| bool StorageAreaProxy::contains(const String& key) const |
| { |
| return !getItem(key).isNull(); |
| } |
| |
| // Copied from WebCore/storage/StorageEventDispatcher.cpp out of necessity. It's probably best to keep it current. |
| void StorageAreaProxy::storageEvent(const String& key, const String& oldValue, const String& newValue, StorageType storageType, SecurityOrigin* securityOrigin, Frame* sourceFrame) |
| { |
| Page* page = sourceFrame->page(); |
| if (!page) |
| return; |
| |
| // We need to copy all relevant frames from every page to a vector since sending the event to one frame might mutate the frame tree |
| // of any given page in the group or mutate the page group itself. |
| Vector<RefPtr<Frame> > frames; |
| if (storageType == SessionStorage) { |
| // Send events only to our page. |
| for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext()) { |
| if (sourceFrame != frame && frame->document()->securityOrigin()->equal(securityOrigin)) |
| frames.append(frame); |
| } |
| |
| for (unsigned i = 0; i < frames.size(); ++i) { |
| ExceptionCode ec = 0; |
| Storage* storage = frames[i]->domWindow()->sessionStorage(ec); |
| if (!ec) |
| frames[i]->document()->enqueueWindowEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), storage)); |
| } |
| } else { |
| // Send events to every page. |
| const HashSet<Page*>& pages = page->group().pages(); |
| HashSet<Page*>::const_iterator end = pages.end(); |
| for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) { |
| for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext()) { |
| if (sourceFrame != frame && frame->document()->securityOrigin()->equal(securityOrigin)) |
| frames.append(frame); |
| } |
| } |
| |
| for (unsigned i = 0; i < frames.size(); ++i) { |
| ExceptionCode ec = 0; |
| Storage* storage = frames[i]->domWindow()->localStorage(ec); |
| if (!ec) |
| frames[i]->document()->enqueueWindowEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), storage)); |
| } |
| } |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(DOM_STORAGE) |