gecko-dev/uriloader/exthandler/nsMIMEInfoImpl.cpp

373 строки
9.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=4 sw=4 sts=4 et: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* 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.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* decision by deleting the provisions above and replace them with the notice
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* ***** END LICENSE BLOCK ***** */
#include "nsMIMEInfoImpl.h"
#include "nsXPIDLString.h"
#include "nsReadableUtils.h"
#include "nsStringEnumerator.h"
#include "nsIProcess.h"
// nsISupports methods
NS_IMPL_THREADSAFE_ISUPPORTS1(nsMIMEInfoBase, nsIMIMEInfo)
// nsMIMEInfoImpl methods
nsMIMEInfoBase::nsMIMEInfoBase(const char *aMIMEType) :
mMIMEType(aMIMEType),
mPreferredAction(nsIMIMEInfo::saveToDisk),
mAlwaysAskBeforeHandling(PR_TRUE)
{
}
nsMIMEInfoBase::nsMIMEInfoBase(const nsACString& aMIMEType) :
mMIMEType(aMIMEType),
mPreferredAction(nsIMIMEInfo::saveToDisk),
mAlwaysAskBeforeHandling(PR_TRUE)
{
}
nsMIMEInfoBase::~nsMIMEInfoBase()
{
}
NS_IMETHODIMP
nsMIMEInfoBase::GetFileExtensions(nsIUTF8StringEnumerator** aResult)
{
return NS_NewUTF8StringEnumerator(aResult, &mExtensions, this);
}
NS_IMETHODIMP
nsMIMEInfoBase::ExtensionExists(const nsACString& aExtension, PRBool *_retval)
{
NS_ASSERTION(!aExtension.IsEmpty(), "no extension");
PRBool found = PR_FALSE;
PRUint32 extCount = mExtensions.Count();
if (extCount < 1) return NS_OK;
for (PRUint8 i=0; i < extCount; i++) {
nsCString* ext = (nsCString*)mExtensions.CStringAt(i);
if (ext->Equals(aExtension, nsCaseInsensitiveCStringComparator())) {
found = PR_TRUE;
break;
}
}
*_retval = found;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetPrimaryExtension(nsACString& _retval)
{
PRUint32 extCount = mExtensions.Count();
if (extCount < 1) return NS_ERROR_NOT_INITIALIZED;
_retval = *(mExtensions.CStringAt(0));
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetPrimaryExtension(const nsACString& aExtension)
{
NS_ASSERTION(!aExtension.IsEmpty(), "no extension");
PRUint32 extCount = mExtensions.Count();
PRUint8 i;
PRBool found = PR_FALSE;
for (i=0; i < extCount; i++) {
nsCString* ext = (nsCString*)mExtensions.CStringAt(i);
if (ext->Equals(aExtension, nsCaseInsensitiveCStringComparator())) {
found = PR_TRUE;
break;
}
}
if (found) {
mExtensions.RemoveCStringAt(i);
}
mExtensions.InsertCStringAt(aExtension, 0);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::AppendExtension(const nsACString& aExtension)
{
mExtensions.AppendCString(aExtension);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetMIMEType(nsACString& aMIMEType)
{
if (mMIMEType.IsEmpty())
return NS_ERROR_NOT_INITIALIZED;
aMIMEType = mMIMEType;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetDescription(nsAString& aDescription)
{
aDescription = mDescription;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetDescription(const nsAString& aDescription)
{
mDescription = aDescription;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::Equals(nsIMIMEInfo *aMIMEInfo, PRBool *_retval)
{
if (!aMIMEInfo) return NS_ERROR_NULL_POINTER;
nsCAutoString type;
nsresult rv = aMIMEInfo->GetMIMEType(type);
if (NS_FAILED(rv)) return rv;
*_retval = mMIMEType.Equals(type);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetMacType(PRUint32 *aMacType)
{
*aMacType = mMacType;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetMacType(PRUint32 aMacType)
{
mMacType = aMacType;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetMacCreator(PRUint32 *aMacCreator)
{
*aMacCreator = mMacCreator;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetMacCreator(PRUint32 aMacCreator)
{
mMacCreator = aMacCreator;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetFileExtensions(const nsACString& aExtensions)
{
mExtensions.Clear();
nsCString extList( aExtensions );
PRInt32 breakLocation = -1;
while ( (breakLocation= extList.FindChar(',') )!= -1)
{
mExtensions.AppendCString(Substring(extList.get(), extList.get() + breakLocation));
extList.Cut(0, breakLocation+1 );
}
if ( !extList.IsEmpty() )
mExtensions.AppendCString( extList );
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetApplicationDescription(nsAString& aApplicationDescription)
{
if (mPreferredAppDescription.IsEmpty() && mPreferredApplication) {
// Don't want to cache this, just in case someone resets the app
// without changing the description....
mPreferredApplication->GetLeafName(aApplicationDescription);
} else {
aApplicationDescription = mPreferredAppDescription;
}
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetApplicationDescription(const nsAString& aApplicationDescription)
{
mPreferredAppDescription = aApplicationDescription;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetDefaultDescription(nsAString& aDefaultDescription)
{
aDefaultDescription = mDefaultAppDescription;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetPreferredApplicationHandler(nsIFile ** aPreferredAppHandler)
{
*aPreferredAppHandler = mPreferredApplication;
NS_IF_ADDREF(*aPreferredAppHandler);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetPreferredApplicationHandler(nsIFile * aPreferredAppHandler)
{
mPreferredApplication = aPreferredAppHandler;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetPreferredAction(nsMIMEInfoHandleAction * aPreferredAction)
{
*aPreferredAction = mPreferredAction;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetPreferredAction(nsMIMEInfoHandleAction aPreferredAction)
{
mPreferredAction = aPreferredAction;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::GetAlwaysAskBeforeHandling(PRBool * aAlwaysAsk)
{
*aAlwaysAsk = mAlwaysAskBeforeHandling;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::SetAlwaysAskBeforeHandling(PRBool aAlwaysAsk)
{
mAlwaysAskBeforeHandling = aAlwaysAsk;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoBase::LaunchWithFile(nsIFile* aFile)
{
if (mPreferredAction == useHelperApp) {
if (!mPreferredApplication)
return NS_ERROR_FILE_NOT_FOUND;
return LaunchWithIProcess(mPreferredApplication, aFile);
}
else if (mPreferredAction == useSystemDefault) {
return LaunchDefaultWithFile(aFile);
}
return NS_ERROR_INVALID_ARG;
}
void
nsMIMEInfoBase::CopyBasicDataTo(nsMIMEInfoBase* aOther)
{
aOther->mMIMEType = mMIMEType;
aOther->mDefaultAppDescription = mDefaultAppDescription;
aOther->mExtensions = mExtensions;
aOther->mMacType = mMacType;
aOther->mMacCreator = mMacCreator;
}
/* static */
nsresult
nsMIMEInfoBase::LaunchWithIProcess(nsIFile* aApp, nsIFile* aFile)
{
NS_ASSERTION(aApp && aFile, "Unexpected null pointer, fix caller");
nsresult rv;
nsCOMPtr<nsIProcess> process = do_CreateInstance(NS_PROCESS_CONTRACTID, &rv);
if (NS_FAILED(rv))
return rv;
if (NS_FAILED(rv = process->Init(aApp)))
return rv;
nsCAutoString path;
aFile->GetNativePath(path);
const char * strPath = path.get();
PRUint32 pid;
return process->Run(PR_FALSE, &strPath, 1, &pid);
}
// nsMIMEInfoImpl implementation
NS_IMETHODIMP
nsMIMEInfoImpl::GetDefaultDescription(nsAString& aDefaultDescription)
{
if (mDefaultAppDescription.IsEmpty() && mDefaultApplication) {
// Don't want to cache this, just in case someone resets the app
// without changing the description....
mDefaultApplication->GetLeafName(aDefaultDescription);
} else {
aDefaultDescription = mDefaultAppDescription;
}
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoImpl::GetHasDefaultHandler(PRBool * _retval)
{
*_retval = PR_FALSE;
if (mDefaultApplication) {
PRBool exists;
*_retval = NS_SUCCEEDED(mDefaultApplication->Exists(&exists)) && exists;
}
return NS_OK;
}
nsresult
nsMIMEInfoImpl::LaunchDefaultWithFile(nsIFile* aFile)
{
if (!mDefaultApplication)
return NS_ERROR_FILE_NOT_FOUND;
return LaunchWithIProcess(mDefaultApplication, aFile);
}