pjs/uriloader/exthandler/nsMIMEInfoImpl.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* compliance with the License. You may obtain a copy of the License at
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*
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* License.
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*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
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#ifndef __nsmimeinfoimpl_h___
#define __nsmimeinfoimpl_h___
#include "nsIMIMEInfo.h"
#include "nsIAtom.h"
#include "nsString.h"
#include "nsVoidArray.h"
#include "nsIFile.h"
#include "nsCOMPtr.h"
#include "nsIURI.h"
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/**
* Basic implementation of nsIMIMEInfo. Incomplete - it is meant to be
* subclassed, and GetHasDefaultHandler as well as LaunchDefaultWithFile need to
* be implemented.
*/
class nsMIMEInfoBase : public nsIMIMEInfo {
public:
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NS_DECL_ISUPPORTS
// I'd use NS_DECL_NSIMIMEINFO, but I don't want GetHasDefaultHandler
NS_IMETHOD GetFileExtensions(nsIUTF8StringEnumerator **_retval);
NS_IMETHOD SetFileExtensions(const nsACString & aExtensions);
NS_IMETHOD ExtensionExists(const nsACString & aExtension, PRBool *_retval);
NS_IMETHOD AppendExtension(const nsACString & aExtension);
NS_IMETHOD GetPrimaryExtension(nsACString & aPrimaryExtension);
NS_IMETHOD SetPrimaryExtension(const nsACString & aPrimaryExtension);
NS_IMETHOD GetMIMEType(nsACString & aMIMEType);
NS_IMETHOD SetMIMEType(const nsACString & aMIMEType);
NS_IMETHOD GetDescription(nsAString & aDescription);
NS_IMETHOD SetDescription(const nsAString & aDescription);
NS_IMETHOD GetMacType(PRUint32 *aMacType);
NS_IMETHOD SetMacType(PRUint32 aMacType);
NS_IMETHOD GetMacCreator(PRUint32 *aMacCreator);
NS_IMETHOD SetMacCreator(PRUint32 aMacCreator);
NS_IMETHOD Equals(nsIMIMEInfo *aMIMEInfo, PRBool *_retval);
NS_IMETHOD GetPreferredApplicationHandler(nsIFile * *aPreferredApplicationHandler);
NS_IMETHOD SetPreferredApplicationHandler(nsIFile * aPreferredApplicationHandler);
NS_IMETHOD GetApplicationDescription(nsAString & aApplicationDescription);
NS_IMETHOD SetApplicationDescription(const nsAString & aApplicationDescription);
NS_IMETHOD GetDefaultDescription(nsAString & aDefaultDescription);
NS_IMETHOD LaunchWithFile(nsIFile *aFile);
NS_IMETHOD GetPreferredAction(nsMIMEInfoHandleAction *aPreferredAction);
NS_IMETHOD SetPreferredAction(nsMIMEInfoHandleAction aPreferredAction);
NS_IMETHOD GetAlwaysAskBeforeHandling(PRBool *aAlwaysAskBeforeHandling);
NS_IMETHOD SetAlwaysAskBeforeHandling(PRBool aAlwaysAskBeforeHandling);
// nsMIMEInfoBase methods
nsMIMEInfoBase(const char *aMIMEType = "") NS_HIDDEN;
virtual ~nsMIMEInfoBase(); // must be virtual, as the the base class's Release should call the subclass's destructor
void SetDefaultDescription(const nsString& aDesc) { mDefaultAppDescription = aDesc; }
/**
* Copies basic data of this MIME Info Implementation to the given other
* MIME Info. The data consists of the MIME Type, the (default) description,
* the MacOS type and creator, and the extension list (this object's
* extension list will replace aOther's list, not append to it). This
* function also ensures that aOther's primary extension will be the same as
* the one of this object.
*/
void CopyBasicDataTo(nsMIMEInfoBase* aOther);
protected:
/**
* Launch the default application for the given file.
* For even more control over the launching, override launchWithFile.
* Also see the comment about nsIMIMEInfo in general, above.
*
* @param aFile The file that should be opened
*/
virtual NS_HIDDEN_(nsresult) LaunchDefaultWithFile(nsIFile* aFile) = 0;
/**
* This method can be used to launch the file using nsIProcess, with the
* path of the file being the first parameter to the executable. This is
* meant as a helper method for implementations of
* LaunchWithFile/LaunchDefaultWithFile.
* Neither aApp nor aFile may be null.
*
* @param aApp The application to launch
* @param aFile The file to open in the application
*/
static NS_HIDDEN_(nsresult) LaunchWithIProcess(nsIFile* aApp, nsIFile* aFile);
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// member variables
nsCStringArray mExtensions; // array of file extensions associated w/ this MIME obj
nsString mDescription; // human readable description
PRUint32 mMacType, mMacCreator; // Mac file type and creator
nsCString mMIMEType;
nsCOMPtr<nsIFile> mPreferredApplication; // preferred application associated with this type.
nsMIMEInfoHandleAction mPreferredAction; // preferred action to associate with this type
nsString mPreferredAppDescription;
nsString mDefaultAppDescription;
PRBool mAlwaysAskBeforeHandling;
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};
/**
* This is a complete implementation of nsIMIMEInfo, and contains all necessary
* methods. However, depending on your platform you may want to use a different
* way of launching applications. This class stores the default application in a
* member variable and provides a function for setting it. Launching is done
* using nsIProcess, native path of the file to open as first argument.
*/
class nsMIMEInfoImpl : public nsMIMEInfoBase {
public:
nsMIMEInfoImpl(const char *aMIMEType = "") : nsMIMEInfoBase(aMIMEType) {}
virtual ~nsMIMEInfoImpl() {}
// nsIMIMEInfo methods
NS_IMETHOD GetHasDefaultHandler(PRBool *_retval);
NS_IMETHOD GetDefaultDescription(nsAString& aDefaultDescription);
// additional methods
void SetDefaultApplication(nsIFile* aApp) { mDefaultApplication = aApp; }
protected:
// nsMIMEInfoBase methods
/**
* The base class implementation is to use LaunchWithIProcess in combination
* with mDefaultApplication. Subclasses can override that behaviour.
*/
virtual NS_HIDDEN_(nsresult) LaunchDefaultWithFile(nsIFile* aFile);
nsCOMPtr<nsIFile> mDefaultApplication; // default application associated with this type.
};
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#endif //__nsmimeinfoimpl_h___