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223 lines
9.2 KiB
C++
223 lines
9.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:set ts=4 sw=4 sts=4 et: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Dan Mosedale <dmose@mozilla.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef __nsmimeinfoimpl_h___
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#define __nsmimeinfoimpl_h___
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#include "nsIMIMEInfo.h"
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#include "nsIAtom.h"
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#include "nsString.h"
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#include "nsTArray.h"
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#include "nsIMutableArray.h"
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#include "nsIFile.h"
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#include "nsCOMPtr.h"
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#include "nsIURI.h"
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/**
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* UTF8 moz-icon URI string for the default handler application's icon, if
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* available.
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*/
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#define PROPERTY_DEFAULT_APP_ICON_URL "defaultApplicationIconURL"
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/**
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* UTF8 moz-icon URI string for the user's preferred handler application's
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* icon, if available.
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*/
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#define PROPERTY_CUSTOM_APP_ICON_URL "customApplicationIconURL"
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/**
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* Basic implementation of nsIMIMEInfo. Incomplete - it is meant to be
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* subclassed, and GetHasDefaultHandler as well as LaunchDefaultWithFile need to
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* be implemented.
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*/
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class nsMIMEInfoBase : public nsIMIMEInfo {
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public:
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NS_DECL_ISUPPORTS
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// I'd use NS_DECL_NSIMIMEINFO, but I don't want GetHasDefaultHandler
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NS_IMETHOD GetFileExtensions(nsIUTF8StringEnumerator **_retval);
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NS_IMETHOD SetFileExtensions(const nsACString & aExtensions);
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NS_IMETHOD ExtensionExists(const nsACString & aExtension, PRBool *_retval);
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NS_IMETHOD AppendExtension(const nsACString & aExtension);
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NS_IMETHOD GetPrimaryExtension(nsACString & aPrimaryExtension);
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NS_IMETHOD SetPrimaryExtension(const nsACString & aPrimaryExtension);
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NS_IMETHOD GetType(nsACString & aType);
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NS_IMETHOD GetMIMEType(nsACString & aMIMEType);
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NS_IMETHOD GetDescription(nsAString & aDescription);
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NS_IMETHOD SetDescription(const nsAString & aDescription);
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NS_IMETHOD Equals(nsIMIMEInfo *aMIMEInfo, PRBool *_retval);
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NS_IMETHOD GetPreferredApplicationHandler(nsIHandlerApp * *aPreferredAppHandler);
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NS_IMETHOD SetPreferredApplicationHandler(nsIHandlerApp * aPreferredAppHandler);
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NS_IMETHOD GetPossibleApplicationHandlers(nsIMutableArray * *aPossibleAppHandlers);
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NS_IMETHOD GetDefaultDescription(nsAString & aDefaultDescription);
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NS_IMETHOD LaunchWithFile(nsIFile *aFile);
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NS_IMETHOD LaunchWithURI(nsIURI *aURI,
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nsIInterfaceRequestor *aWindowContext);
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NS_IMETHOD GetPreferredAction(nsHandlerInfoAction *aPreferredAction);
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NS_IMETHOD SetPreferredAction(nsHandlerInfoAction aPreferredAction);
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NS_IMETHOD GetAlwaysAskBeforeHandling(PRBool *aAlwaysAskBeforeHandling);
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NS_IMETHOD SetAlwaysAskBeforeHandling(PRBool aAlwaysAskBeforeHandling);
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NS_IMETHOD GetPossibleLocalHandlers(nsIArray **_retval);
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enum HandlerClass {
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eMIMEInfo,
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eProtocolInfo
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};
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// nsMIMEInfoBase methods
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nsMIMEInfoBase(const char *aMIMEType = "") NS_HIDDEN;
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nsMIMEInfoBase(const nsACString& aMIMEType) NS_HIDDEN;
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nsMIMEInfoBase(const nsACString& aType, HandlerClass aClass) NS_HIDDEN;
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virtual ~nsMIMEInfoBase(); // must be virtual, as the the base class's Release should call the subclass's destructor
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void SetMIMEType(const nsACString & aMIMEType) { mType = aMIMEType; }
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void SetDefaultDescription(const nsString& aDesc) { mDefaultAppDescription = aDesc; }
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/**
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* Copies basic data of this MIME Info Implementation to the given other
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* MIME Info. The data consists of the MIME Type, the (default) description,
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* the MacOS type and creator, and the extension list (this object's
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* extension list will replace aOther's list, not append to it). This
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* function also ensures that aOther's primary extension will be the same as
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* the one of this object.
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*/
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void CopyBasicDataTo(nsMIMEInfoBase* aOther);
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/**
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* Return whether this MIMEInfo has any extensions
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*/
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PRBool HasExtensions() const { return mExtensions.Length() != 0; }
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protected:
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/**
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* Launch the default application for the given file.
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* For even more control over the launching, override launchWithFile.
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* Also see the comment about nsIMIMEInfo in general, above.
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*
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* @param aFile The file that should be opened
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*/
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virtual NS_HIDDEN_(nsresult) LaunchDefaultWithFile(nsIFile* aFile) = 0;
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/**
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* Loads the URI with the OS default app.
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*
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* @param aURI The URI to pass off to the OS.
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*/
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virtual NS_HIDDEN_(nsresult) LoadUriInternal(nsIURI *aURI) = 0;
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/**
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* This method can be used to launch the file or URI with a single
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* argument (typically either a file path or a URI spec). This is
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* meant as a helper method for implementations of
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* LaunchWithURI/LaunchDefaultWithFile.
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*
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* @param aApp The application to launch (may not be null)
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* @param aArg The argument to pass on the command line
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*/
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static NS_HIDDEN_(nsresult) LaunchWithIProcess(nsIFile* aApp,
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const nsCString &aArg);
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/**
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* Given a file: nsIURI, return the associated nsILocalFile
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*
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* @param aURI the file: URI in question
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* @param aFile the associated nsILocalFile (out param)
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*/
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static NS_HIDDEN_(nsresult) GetLocalFileFromURI(nsIURI *aURI,
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nsILocalFile **aFile);
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// member variables
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nsTArray<nsCString> mExtensions; ///< array of file extensions associated w/ this MIME obj
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nsString mDescription; ///< human readable description
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nsCString mType;
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HandlerClass mClass;
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nsCOMPtr<nsIHandlerApp> mPreferredApplication;
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nsCOMPtr<nsIMutableArray> mPossibleApplications;
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nsHandlerInfoAction mPreferredAction; ///< preferred action to associate with this type
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nsString mPreferredAppDescription;
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nsString mDefaultAppDescription;
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PRBool mAlwaysAskBeforeHandling;
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};
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/**
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* This is a complete implementation of nsIMIMEInfo, and contains all necessary
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* methods. However, depending on your platform you may want to use a different
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* way of launching applications. This class stores the default application in a
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* member variable and provides a function for setting it. For local
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* applications, launching is done using nsIProcess, native path of the file to
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* open as first argument.
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*/
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class nsMIMEInfoImpl : public nsMIMEInfoBase {
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public:
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nsMIMEInfoImpl(const char *aMIMEType = "") : nsMIMEInfoBase(aMIMEType) {}
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nsMIMEInfoImpl(const nsACString& aMIMEType) : nsMIMEInfoBase(aMIMEType) {}
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nsMIMEInfoImpl(const nsACString& aType, HandlerClass aClass) :
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nsMIMEInfoBase(aType, aClass) {}
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virtual ~nsMIMEInfoImpl() {}
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// nsIMIMEInfo methods
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NS_IMETHOD GetHasDefaultHandler(PRBool *_retval);
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NS_IMETHOD GetDefaultDescription(nsAString& aDefaultDescription);
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// additional methods
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/**
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* Sets the default application. Supposed to be only called by the OS Helper
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* App Services; the default application is immutable after it is first set.
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*/
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void SetDefaultApplication(nsIFile* aApp) { if (!mDefaultApplication) mDefaultApplication = aApp; }
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protected:
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// nsMIMEInfoBase methods
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/**
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* The base class implementation is to use LaunchWithIProcess in combination
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* with mDefaultApplication. Subclasses can override that behaviour.
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*/
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virtual NS_HIDDEN_(nsresult) LaunchDefaultWithFile(nsIFile* aFile);
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/**
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* Loads the URI with the OS default app. This should be overridden by each
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* OS's implementation.
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*/
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virtual NS_HIDDEN_(nsresult) LoadUriInternal(nsIURI *aURI) = 0;
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nsCOMPtr<nsIFile> mDefaultApplication; ///< default application associated with this type.
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};
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#endif //__nsmimeinfoimpl_h___
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