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-rw-r--r--widget/windows/nsClipboard.h115
1 files changed, 115 insertions, 0 deletions
diff --git a/widget/windows/nsClipboard.h b/widget/windows/nsClipboard.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 nsClipboard_h__
+#define nsClipboard_h__
+
+#include "nsBaseClipboard.h"
+#include "nsIObserver.h"
+#include "nsIURI.h"
+
+#include <ole2.h>
+#include <windows.h>
+
+class nsITransferable;
+class nsIWidget;
+class nsIFile;
+struct IDataObject;
+
+/**
+ * Native Win32 Clipboard wrapper
+ */
+
+class nsClipboard : public nsBaseClipboard, public nsIObserver {
+ virtual ~nsClipboard();
+
+ public:
+ nsClipboard();
+
+ NS_DECL_ISUPPORTS_INHERITED
+
+ // nsIObserver
+ NS_DECL_NSIOBSERVER
+
+ // nsIClipboard
+ NS_IMETHOD HasDataMatchingFlavors(const nsTArray<nsCString>& aFlavorList,
+ int32_t aWhichClipboard,
+ bool* _retval) override;
+ NS_IMETHOD EmptyClipboard(int32_t aWhichClipboard) override;
+
+ // Internal Native Routines
+ enum class MightNeedToFlush : bool { No, Yes };
+ static nsresult CreateNativeDataObject(nsITransferable* aTransferable,
+ IDataObject** aDataObj, nsIURI* aUri,
+ MightNeedToFlush* = nullptr);
+ static nsresult SetupNativeDataObject(nsITransferable* aTransferable,
+ IDataObject* aDataObj,
+ MightNeedToFlush* = nullptr);
+ static nsresult GetDataFromDataObject(IDataObject* aDataObject, UINT anIndex,
+ nsIWidget* aWindow,
+ nsITransferable* aTransferable);
+ static nsresult GetNativeDataOffClipboard(nsIWidget* aWindow, UINT aIndex,
+ UINT aFormat, void** aData,
+ uint32_t* aLen);
+ static nsresult GetNativeDataOffClipboard(IDataObject* aDataObject,
+ UINT aIndex, UINT aFormat,
+ const char* aMIMEImageFormat,
+ void** aData, uint32_t* aLen);
+ static nsresult GetGlobalData(HGLOBAL aHGBL, void** aData, uint32_t* aLen);
+
+ // This function returns the internal Windows clipboard format identifier
+ // for a given Mime string. The default is to map kHTMLMime ("text/html")
+ // to the clipboard format CF_HTML ("HTLM Format"), but it can also be
+ // registered as clipboard format "text/html" to support previous versions
+ // of Gecko.
+ static UINT GetFormat(const char* aMimeStr, bool aMapHTMLMime = true);
+
+ static UINT GetClipboardFileDescriptorFormatA();
+ static UINT GetClipboardFileDescriptorFormatW();
+ static UINT GetHtmlClipboardFormat();
+ static UINT GetCustomClipboardFormat();
+
+ protected:
+ // @param aDataObject must be non-nullptr.
+ static HRESULT FillSTGMedium(IDataObject* aDataObject, UINT aFormat,
+ LPFORMATETC pFE, LPSTGMEDIUM pSTM, DWORD aTymed);
+
+ // Implement the native clipboard behavior.
+ NS_IMETHOD SetNativeClipboardData(nsITransferable* aTransferable,
+ nsIClipboardOwner* aOwner,
+ int32_t aWhichClipboard) override;
+ NS_IMETHOD GetNativeClipboardData(nsITransferable* aTransferable,
+ int32_t aWhichClipboard) override;
+
+ static bool IsInternetShortcut(const nsAString& inFileName);
+ static bool FindURLFromLocalFile(IDataObject* inDataObject, UINT inIndex,
+ void** outData, uint32_t* outDataLen);
+ static bool FindURLFromNativeURL(IDataObject* inDataObject, UINT inIndex,
+ void** outData, uint32_t* outDataLen);
+ static bool FindUnicodeFromPlainText(IDataObject* inDataObject, UINT inIndex,
+ void** outData, uint32_t* outDataLen);
+ static bool FindPlatformHTML(IDataObject* inDataObject, UINT inIndex,
+ void** outData, uint32_t* outStartOfData,
+ uint32_t* outDataLen);
+
+ static void ResolveShortcut(nsIFile* inFileName, nsACString& outURL);
+ static nsresult GetTempFilePath(const nsAString& aFileName,
+ nsAString& aFilePath);
+ static nsresult SaveStorageOrStream(IDataObject* aDataObject, UINT aIndex,
+ const nsAString& aFileName);
+
+ nsIWidget* mWindow;
+};
+
+#define SET_FORMATETC(fe, cf, td, asp, li, med) \
+ { \
+ (fe).cfFormat = cf; \
+ (fe).ptd = td; \
+ (fe).dwAspect = asp; \
+ (fe).lindex = li; \
+ (fe).tymed = med; \
+ }
+
+#endif // nsClipboard_h__