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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:set ts=4 sw=4 sts=4 et: */
/* 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 __nsmimeinfoimpl_h___
#define __nsmimeinfoimpl_h___
#include "nsIMIMEInfo.h"
#include "nsIAtom.h"
#include "nsString.h"
#include "nsTArray.h"
#include "nsIMutableArray.h"
#include "nsIFile.h"
#include "nsCOMPtr.h"
#include "nsIURI.h"
#include "nsIProcess.h"
/**
* UTF8 moz-icon URI string for the default handler application's icon, if
* available.
*/
#define PROPERTY_DEFAULT_APP_ICON_URL "defaultApplicationIconURL"
/**
* UTF8 moz-icon URI string for the user's preferred handler application's
* icon, if available.
*/
#define PROPERTY_CUSTOM_APP_ICON_URL "customApplicationIconURL"
/**
* 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:
NS_DECL_THREADSAFE_ISUPPORTS
// I'd use NS_DECL_NSIMIMEINFO, but I don't want GetHasDefaultHandler
NS_IMETHOD GetFileExtensions(nsIUTF8StringEnumerator **_retval) override;
NS_IMETHOD SetFileExtensions(const nsACString & aExtensions) override;
NS_IMETHOD ExtensionExists(const nsACString & aExtension, bool *_retval) override;
NS_IMETHOD AppendExtension(const nsACString & aExtension) override;
NS_IMETHOD GetPrimaryExtension(nsACString & aPrimaryExtension) override;
NS_IMETHOD SetPrimaryExtension(const nsACString & aPrimaryExtension) override;
NS_IMETHOD GetType(nsACString & aType) override;
NS_IMETHOD GetMIMEType(nsACString & aMIMEType) override;
NS_IMETHOD GetDescription(nsAString & aDescription) override;
NS_IMETHOD SetDescription(const nsAString & aDescription) override;
NS_IMETHOD Equals(nsIMIMEInfo *aMIMEInfo, bool *_retval) override;
NS_IMETHOD GetPreferredApplicationHandler(nsIHandlerApp * *aPreferredAppHandler) override;
NS_IMETHOD SetPreferredApplicationHandler(nsIHandlerApp * aPreferredAppHandler) override;
NS_IMETHOD GetPossibleApplicationHandlers(nsIMutableArray * *aPossibleAppHandlers) override;
NS_IMETHOD GetDefaultDescription(nsAString & aDefaultDescription) override;
NS_IMETHOD LaunchWithFile(nsIFile *aFile) override;
NS_IMETHOD LaunchWithURI(nsIURI *aURI,
nsIInterfaceRequestor *aWindowContext) override;
NS_IMETHOD GetPreferredAction(nsHandlerInfoAction *aPreferredAction) override;
NS_IMETHOD SetPreferredAction(nsHandlerInfoAction aPreferredAction) override;
NS_IMETHOD GetAlwaysAskBeforeHandling(bool *aAlwaysAskBeforeHandling) override;
NS_IMETHOD SetAlwaysAskBeforeHandling(bool aAlwaysAskBeforeHandling) override;
NS_IMETHOD GetPossibleLocalHandlers(nsIArray **_retval) override;
enum HandlerClass {
eMIMEInfo,
eProtocolInfo
};
// nsMIMEInfoBase methods
explicit nsMIMEInfoBase(const char *aMIMEType = "");
explicit nsMIMEInfoBase(const nsACString& aMIMEType);
nsMIMEInfoBase(const nsACString& aType, HandlerClass aClass);
void SetMIMEType(const nsACString & aMIMEType) { mSchemeOrType = aMIMEType; }
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);
/**
* Return whether this MIMEInfo has any extensions
*/
bool HasExtensions() const { return mExtensions.Length() != 0; }
protected:
virtual ~nsMIMEInfoBase(); // must be virtual, as the the base class's Release should call the subclass's destructor
/**
* 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 nsresult LaunchDefaultWithFile(nsIFile* aFile) = 0;
/**
* Loads the URI with the OS default app.
*
* @param aURI The URI to pass off to the OS.
*/
virtual nsresult LoadUriInternal(nsIURI *aURI) = 0;
static already_AddRefed<nsIProcess> InitProcess(nsIFile* aApp,
nsresult* aResult);
/**
* This method can be used to launch the file or URI with a single
* argument (typically either a file path or a URI spec). This is
* meant as a helper method for implementations of
* LaunchWithURI/LaunchDefaultWithFile.
*
* @param aApp The application to launch (may not be null)
* @param aArg The argument to pass on the command line
*/
static nsresult LaunchWithIProcess(nsIFile* aApp,
const nsCString &aArg);
static nsresult LaunchWithIProcess(nsIFile* aApp,
const nsString &aArg);
/**
* Given a file: nsIURI, return the associated nsIFile
*
* @param aURI the file: URI in question
* @param aFile the associated nsIFile (out param)
*/
static nsresult GetLocalFileFromURI(nsIURI *aURI,
nsIFile **aFile);
// member variables
nsTArray<nsCString> mExtensions; ///< array of file extensions associated w/ this MIME obj
nsString mDescription; ///< human readable description
nsCString mSchemeOrType;
HandlerClass mClass;
nsCOMPtr<nsIHandlerApp> mPreferredApplication;
nsCOMPtr<nsIMutableArray> mPossibleApplications;
nsHandlerInfoAction mPreferredAction; ///< preferred action to associate with this type
nsString mPreferredAppDescription;
nsString mDefaultAppDescription;
bool mAlwaysAskBeforeHandling;
};
/**
* 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. For local
* applications, launching is done using nsIProcess, native path of the file to
* open as first argument.
*/
class nsMIMEInfoImpl : public nsMIMEInfoBase {
public:
explicit nsMIMEInfoImpl(const char *aMIMEType = "") : nsMIMEInfoBase(aMIMEType) {}
explicit nsMIMEInfoImpl(const nsACString& aMIMEType) : nsMIMEInfoBase(aMIMEType) {}
nsMIMEInfoImpl(const nsACString& aType, HandlerClass aClass) :
nsMIMEInfoBase(aType, aClass) {}
virtual ~nsMIMEInfoImpl() {}
// nsIMIMEInfo methods
NS_IMETHOD GetHasDefaultHandler(bool *_retval);
NS_IMETHOD GetDefaultDescription(nsAString& aDefaultDescription);
// additional methods
/**
* Sets the default application. Supposed to be only called by the OS Helper
* App Services; the default application is immutable after it is first set.
*/
void SetDefaultApplication(nsIFile* aApp) { if (!mDefaultApplication) mDefaultApplication = aApp; }
protected:
// nsMIMEInfoBase methods
/**
* The base class implementation is to use LaunchWithIProcess in combination
* with mDefaultApplication. Subclasses can override that behaviour.
*/
virtual nsresult LaunchDefaultWithFile(nsIFile* aFile);
/**
* Loads the URI with the OS default app. This should be overridden by each
* OS's implementation.
*/
virtual nsresult LoadUriInternal(nsIURI *aURI) = 0;
nsCOMPtr<nsIFile> mDefaultApplication; ///< default application associated with this type.
};
#endif //__nsmimeinfoimpl_h___
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