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nsCopySupport.h

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#ifndef nsCopySupport_h__
#define nsCopySupport_h__

#include "nscore.h"

class nsISelection;
class nsIDocument;
class nsIImageLoadingContent;
class nsIContent;
class nsITransferable;
class nsACString;
class nsAString;
class nsIDOMNode;

class nsCopySupport
{
  // class of static helper functions for copy support
  public:
    static nsresult HTMLCopy(nsISelection *aSel, nsIDocument *aDoc, PRInt16 aClipboardID);
    static nsresult DoHooks(nsIDocument *aDoc, nsITransferable *aTrans,
                            PRBool *aDoPutOnClipboard);
    static nsresult IsPlainTextContext(nsISelection *aSel, nsIDocument *aDoc, PRBool *aIsPlainTextContext);

    // Get the selection, or entire document, in the format specified by the mime type
    // (text/html or text/plain). If aSel is non-null, use it, otherwise get the entire
    // doc.
    static nsresult GetContents(const nsACString& aMimeType, PRUint32 aFlags, nsISelection *aSel, nsIDocument *aDoc, nsAString& outdata);
    
    static nsresult ImageCopy(nsIImageLoadingContent* aImageElement,
                              PRInt32 aCopyFlags);

    // Given the current selection, find the target that
    // before[copy,cut,paste] and [copy,cut,paste] events will fire on.
    static nsresult GetClipboardEventTarget(nsISelection *aSel,
                                            nsIDOMNode **aEventTarget);
};

#endif

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