Add m-esr52 at 52.6.0

1 files changed, 221 insertions, 0 deletions

diff --git a/rdf/util/nsRDFResource.cpp b/rdf/util/nsRDFResource.cpp
new file mode 100644
index 000000000..0e6f01f14
--- /dev/null
+++ b/rdf/util/nsRDFResource.cpp
@@ -0,0 +1,221 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsRDFResource.h"
+#include "nsIServiceManager.h"
+#include "nsIRDFDelegateFactory.h"
+#include "nsIRDFService.h"
+#include "nsRDFCID.h"
+#include "mozilla/Logging.h"
+#include "nsComponentManagerUtils.h"
+#include "nsServiceManagerUtils.h"
+
+static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
+
+nsIRDFService* nsRDFResource::gRDFService = nullptr;
+nsrefcnt nsRDFResource::gRDFServiceRefCnt = 0;
+
+////////////////////////////////////////////////////////////////////////////////
+
+nsRDFResource::nsRDFResource(void)
+    : mDelegates(nullptr)
+{
+}
+
+nsRDFResource::~nsRDFResource(void)
+{
+    // Release all of the delegate objects
+    while (mDelegates) {
+        DelegateEntry* doomed = mDelegates;
+        mDelegates = mDelegates->mNext;
+        delete doomed;
+    }
+
+    if (!gRDFService)
+        return;
+
+    gRDFService->UnregisterResource(this);
+
+    if (--gRDFServiceRefCnt == 0)
+        NS_RELEASE(gRDFService);
+}
+
+NS_IMPL_ISUPPORTS(nsRDFResource, nsIRDFResource, nsIRDFNode)
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIRDFNode methods:
+
+NS_IMETHODIMP
+nsRDFResource::EqualsNode(nsIRDFNode* aNode, bool* aResult)
+{
+    NS_PRECONDITION(aNode != nullptr, "null ptr");
+    if (! aNode)
+        return NS_ERROR_NULL_POINTER;
+
+    nsresult rv;
+    nsIRDFResource* resource;
+    rv = aNode->QueryInterface(NS_GET_IID(nsIRDFResource), (void**)&resource);
+    if (NS_SUCCEEDED(rv)) {
+        *aResult = (static_cast<nsIRDFResource*>(this) == resource);
+        NS_RELEASE(resource);
+        return NS_OK;
+    }
+    else if (rv == NS_NOINTERFACE) {
+        *aResult = false;
+        return NS_OK;
+    }
+    else {
+        return rv;
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIRDFResource methods:
+
+NS_IMETHODIMP
+nsRDFResource::Init(const char* aURI)
+{
+    NS_PRECONDITION(aURI != nullptr, "null ptr");
+    if (! aURI)
+        return NS_ERROR_NULL_POINTER;
+
+    mURI = aURI;
+
+    if (gRDFServiceRefCnt++ == 0) {
+        nsresult rv = CallGetService(kRDFServiceCID, &gRDFService);
+        if (NS_FAILED(rv)) return rv;
+    }
+
+    // don't replace an existing resource with the same URI automatically
+    return gRDFService->RegisterResource(this, true);
+}
+
+NS_IMETHODIMP
+nsRDFResource::GetValue(char* *aURI)
+{
+    NS_ASSERTION(aURI, "Null out param.");
+    
+    *aURI = ToNewCString(mURI);
+
+    if (!*aURI)
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsRDFResource::GetValueUTF8(nsACString& aResult)
+{
+    aResult = mURI;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsRDFResource::GetValueConst(const char** aURI)
+{
+    *aURI = mURI.get();
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsRDFResource::EqualsString(const char* aURI, bool* aResult)
+{
+    NS_PRECONDITION(aURI != nullptr, "null ptr");
+    if (! aURI)
+        return NS_ERROR_NULL_POINTER;
+
+    NS_PRECONDITION(aResult, "null ptr");
+
+    *aResult = mURI.Equals(aURI);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsRDFResource::GetDelegate(const char* aKey, REFNSIID aIID, void** aResult)
+{
+    NS_PRECONDITION(aKey != nullptr, "null ptr");
+    if (! aKey)
+        return NS_ERROR_NULL_POINTER;
+
+    nsresult rv;
+    *aResult = nullptr;
+
+    DelegateEntry* entry = mDelegates;
+    while (entry) {
+        if (entry->mKey.Equals(aKey)) {
+            rv = entry->mDelegate->QueryInterface(aIID, aResult);
+            return rv;
+        }
+
+        entry = entry->mNext;
+    }
+
+    // Construct a ContractID of the form "@mozilla.org/rdf/delegate/[key]/[scheme];1
+    nsAutoCString contractID(NS_RDF_DELEGATEFACTORY_CONTRACTID_PREFIX);
+    contractID.Append(aKey);
+    contractID.AppendLiteral("&scheme=");
+
+    int32_t i = mURI.FindChar(':');
+    contractID += StringHead(mURI, i);
+
+    nsCOMPtr<nsIRDFDelegateFactory> delegateFactory =
+             do_CreateInstance(contractID.get(), &rv);
+    if (NS_FAILED(rv)) return rv;
+
+    rv = delegateFactory->CreateDelegate(this, aKey, aIID, aResult);
+    if (NS_FAILED(rv)) return rv;
+
+    // Okay, we've successfully created a delegate. Let's remember it.
+    entry = new DelegateEntry;
+    if (! entry) {
+        NS_RELEASE(*reinterpret_cast<nsISupports**>(aResult));
+        return NS_ERROR_OUT_OF_MEMORY;
+    }
+    
+    entry->mKey      = aKey;
+    entry->mDelegate = do_QueryInterface(*reinterpret_cast<nsISupports**>(aResult), &rv);
+    if (NS_FAILED(rv)) {
+        NS_ERROR("nsRDFResource::GetDelegate(): can't QI to nsISupports!");
+
+        delete entry;
+        NS_RELEASE(*reinterpret_cast<nsISupports**>(aResult));
+        return NS_ERROR_FAILURE;
+    }
+
+    entry->mNext     = mDelegates;
+
+    mDelegates = entry;
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsRDFResource::ReleaseDelegate(const char* aKey)
+{
+    NS_PRECONDITION(aKey != nullptr, "null ptr");
+    if (! aKey)
+        return NS_ERROR_NULL_POINTER;
+
+    DelegateEntry* entry = mDelegates;
+    DelegateEntry** link = &mDelegates;
+
+    while (entry) {
+        if (entry->mKey.Equals(aKey)) {
+            *link = entry->mNext;
+            delete entry;
+            return NS_OK;
+        }
+
+        link = &(entry->mNext);
+        entry = entry->mNext;
+    }
+
+    NS_WARNING("nsRDFResource::ReleaseDelegate() no delegate found");
+    return NS_OK;
+}
+
+
+
+////////////////////////////////////////////////////////////////////////////////