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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /widget/nsTransferable.h
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'widget/nsTransferable.h')
-rw-r--r--widget/nsTransferable.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/widget/nsTransferable.h b/widget/nsTransferable.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+#ifndef nsTransferable_h__
+#define nsTransferable_h__
+
+#include "nsICookieJarSettings.h"
+#include "nsIFormatConverter.h"
+#include "nsITransferable.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "nsTArray.h"
+#include "nsIPrincipal.h"
+#include "nsIReferrerInfo.h"
+#include "prio.h"
+#include "mozilla/Maybe.h"
+
+class nsIMutableArray;
+
+//
+// DataStruct
+//
+// Holds a flavor (a mime type) that describes the data and the associated data.
+//
+struct DataStruct {
+ explicit DataStruct(const char* aFlavor)
+ : mCacheFD(nullptr), mFlavor(aFlavor) {}
+ DataStruct(DataStruct&& aRHS);
+ ~DataStruct();
+
+ const nsCString& GetFlavor() const { return mFlavor; }
+ void SetData(nsISupports* aData, bool aIsPrivateData);
+ void GetData(nsISupports** aData);
+ bool IsDataAvailable() const { return mData || mCacheFD; }
+
+ protected:
+ enum {
+ // The size of data over which we write the data to disk rather than
+ // keep it around in memory.
+ kLargeDatasetSize = 1000000 // 1 million bytes
+ };
+
+ nsresult WriteCache(void* aData, uint32_t aDataLen);
+ nsresult ReadCache(nsISupports** aData);
+
+ // mData OR mCacheFD should be used, not both.
+ nsCOMPtr<nsISupports> mData; // OWNER - some varient of primitive wrapper
+ PRFileDesc* mCacheFD;
+ const nsCString mFlavor;
+
+ private:
+ DataStruct(const DataStruct&) = delete;
+ DataStruct& operator=(const DataStruct&) = delete;
+};
+
+/**
+ * XP Transferable wrapper
+ */
+
+class nsTransferable : public nsITransferable {
+ public:
+ nsTransferable();
+
+ // nsISupports
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSITRANSFERABLE
+
+ protected:
+ virtual ~nsTransferable();
+
+ // Get flavors w/out converter
+ void GetTransferDataFlavors(nsTArray<nsCString>& aFlavors);
+
+ // Find index for data with the matching flavor in mDataArray.
+ mozilla::Maybe<size_t> FindDataFlavor(const char* aFlavor);
+
+ nsTArray<DataStruct> mDataArray;
+ nsCOMPtr<nsIFormatConverter> mFormatConv;
+ bool mPrivateData;
+ nsCOMPtr<nsIPrincipal> mRequestingPrincipal;
+ nsContentPolicyType mContentPolicyType;
+ nsCOMPtr<nsICookieJarSettings> mCookieJarSettings;
+ nsCOMPtr<nsIReferrerInfo> mReferrerInfo;
+#if DEBUG
+ bool mInitialized;
+#endif
+};
+
+#endif // nsTransferable_h__