1 files changed, 152 insertions, 0 deletions
diff --git a/WebCore/loader/appcache/ApplicationCacheGroup.h b/WebCore/loader/appcache/ApplicationCacheGroup.h
new file mode 100644
index 0000000..d5b7563
--- /dev/null
+++ b/WebCore/loader/appcache/ApplicationCacheGroup.h
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2008 Apple 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:
+ * 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 APPLE 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 APPLE 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. 
+ */
+
+#ifndef ApplicationCacheGroup_h
+#define ApplicationCacheGroup_h
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+
+#include <wtf/Noncopyable.h>
+#include <wtf/HashMap.h>
+#include <wtf/HashSet.h>
+
+#include "KURL.h"
+#include "PlatformString.h"
+#include "ResourceHandle.h"
+#include "ResourceHandleClient.h"
+#include "SharedBuffer.h"
+
+namespace WebCore {
+
+class ApplicationCache;
+class ApplicationCacheResource;
+class DOMApplicationCache;
+class Document;
+class DocumentLoader;
+class Frame;
+
+class ApplicationCacheGroup : Noncopyable, ResourceHandleClient {
+public:
+    ApplicationCacheGroup(const KURL& manifestURL, bool isCopy = false);    
+    ~ApplicationCacheGroup();
+    
+    enum Status { Idle, Checking, Downloading };
+
+    static ApplicationCache* cacheForMainRequest(const ResourceRequest&, DocumentLoader*);
+    
+    static void selectCache(Frame*, const KURL& manifestURL);
+    static void selectCacheWithoutManifestURL(Frame*);
+    
+    const KURL& manifestURL() const { return m_manifestURL; }
+    Status status() const { return m_status; }
+    
+    void setStorageID(unsigned storageID) { m_storageID = storageID; }
+    unsigned storageID() const { return m_storageID; }
+    void clearStorageID();
+    
+    void update(Frame*);
+    void cacheDestroyed(ApplicationCache*);
+        
+    ApplicationCache* newestCache() const { return m_newestCache.get(); }
+    ApplicationCache* savedNewestCachePointer() const { return m_savedNewestCachePointer; }
+    
+    void finishedLoadingMainResource(DocumentLoader*);
+    void failedLoadingMainResource(DocumentLoader*);
+    void documentLoaderDestroyed(DocumentLoader*);
+
+    void setNewestCache(PassRefPtr<ApplicationCache> newestCache);
+
+    bool isCopy() const { return m_isCopy; }
+private:
+    typedef void (DOMApplicationCache::*ListenerFunction)();
+    void callListenersOnAssociatedDocuments(ListenerFunction);
+    void callListeners(ListenerFunction, const Vector<RefPtr<DocumentLoader> >& loaders);
+    
+    virtual void didReceiveResponse(ResourceHandle*, const ResourceResponse&);
+    virtual void didReceiveData(ResourceHandle*, const char*, int, int lengthReceived);
+    virtual void didFinishLoading(ResourceHandle*);
+    virtual void didFail(ResourceHandle*, const ResourceError&);
+
+    void didReceiveManifestResponse(const ResourceResponse&);
+    void didReceiveManifestData(const char*, int);
+    void didFinishLoadingManifest();
+    void didFailToLoadManifest();
+    
+    void startLoadingEntry();
+    void checkIfLoadIsComplete();
+    void cacheUpdateFailed();
+    
+    void addEntry(const String&, unsigned type);
+    
+    void associateDocumentLoaderWithCache(DocumentLoader*, ApplicationCache*);
+    
+    void stopLoading();
+    
+    KURL m_manifestURL;
+    Status m_status;
+    
+    // This is the newest cache in the group.
+    RefPtr<ApplicationCache> m_newestCache;
+    
+    // During tear-down we save the pointer to the newest cache to prevent reference cycles.
+    ApplicationCache* m_savedNewestCachePointer;
+    
+    // The caches in this cache group.
+    HashSet<ApplicationCache*> m_caches;
+    
+    // The cache being updated (if any).
+    RefPtr<ApplicationCache> m_cacheBeingUpdated;
+
+    // When a cache group does not yet have a complete cache, this contains the document loaders
+    // that should be associated with the cache once it has been downloaded.
+    HashSet<DocumentLoader*> m_cacheCandidates;
+    
+    // These are all the document loaders that are associated with a cache in this group.
+    HashSet<DocumentLoader*> m_associatedDocumentLoaders;
+    
+    // The URLs and types of pending cache entries.
+    typedef HashMap<String, unsigned> EntryMap;
+    EntryMap m_pendingEntries;
+
+    // Frame used for fetching resources when updating
+    Frame* m_frame;
+  
+    unsigned m_storageID;
+  
+    // Whether this cache group is a copy that's only used for transferring the cache to another file.
+    bool m_isCopy;
+    
+    RefPtr<ResourceHandle> m_currentHandle;
+    RefPtr<ApplicationCacheResource> m_currentResource;
+    
+    RefPtr<ApplicationCacheResource> m_manifestResource;
+    RefPtr<ResourceHandle> m_manifestHandle;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(OFFLINE_WEB_APPLICATIONS)
+
+#endif // ApplicationCacheGroup_h