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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__
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