gecko-dev/xpinstall/src/nsInstallVersion.cpp

356 lines
8.7 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Communicator client 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 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
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsSoftwareUpdate.h"
#include "nsInstallVersion.h"
#include "nsIDOMInstallVersion.h"
#include "nscore.h"
#include "nsIFactory.h"
#include "nsISupports.h"
#include "nsIScriptGlobalObject.h"
#include "prprf.h"
#include "prmem.h"
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
static NS_DEFINE_IID(kIScriptObjectOwnerIID, NS_ISCRIPTOBJECTOWNER_IID);
static NS_DEFINE_IID(kIInstallVersion_IID, NS_IDOMINSTALLVERSION_IID);
nsInstallVersion::nsInstallVersion()
{
mScriptObject = nsnull;
}
nsInstallVersion::~nsInstallVersion()
{
}
NS_IMETHODIMP
nsInstallVersion::QueryInterface(REFNSIID aIID,void** aInstancePtr)
{
if (aInstancePtr == NULL)
{
return NS_ERROR_NULL_POINTER;
}
// Always NULL result, in case of failure
*aInstancePtr = NULL;
if ( aIID.Equals(kIScriptObjectOwnerIID))
{
*aInstancePtr = (void*) ((nsIScriptObjectOwner*)this);
AddRef();
return NS_OK;
}
else if ( aIID.Equals(kIInstallVersion_IID) )
{
*aInstancePtr = (void*) ((nsIDOMInstallVersion*)this);
AddRef();
return NS_OK;
}
else if ( aIID.Equals(kISupportsIID) )
{
*aInstancePtr = (void*)(nsISupports*)(nsIScriptObjectOwner*)this;
AddRef();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMPL_ADDREF(nsInstallVersion)
NS_IMPL_RELEASE(nsInstallVersion)
NS_IMETHODIMP
nsInstallVersion::GetScriptObject(nsIScriptContext *aContext, void** aScriptObject)
{
NS_PRECONDITION(nsnull != aScriptObject, "null arg");
nsresult res = NS_OK;
if (nsnull == mScriptObject)
{
res = NS_NewScriptInstallVersion(aContext,
(nsISupports *)(nsIDOMInstallVersion*)this,
nsnull,
&mScriptObject);
}
*aScriptObject = mScriptObject;
return res;
}
NS_IMETHODIMP
nsInstallVersion::SetScriptObject(void *aScriptObject)
{
mScriptObject = aScriptObject;
return NS_OK;
}
// this will go away when our constructors can have parameters.
NS_IMETHODIMP
nsInstallVersion::Init(PRInt32 aMajor, PRInt32 aMinor, PRInt32 aRelease, PRInt32 aBuild)
{
major = aMajor;
minor = aMinor;
release = aRelease;
build = aBuild;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::Init(const nsString& version)
{
PRInt32 errorCode;
PRInt32 aMajor, aMinor, aRelease, aBuild;
major = minor = release = build = 0;
errorCode = nsInstallVersion::StringToVersionNumbers(version, &aMajor, &aMinor, &aRelease, &aBuild);
if (NS_SUCCEEDED(errorCode))
{
Init(aMajor, aMinor, aRelease, aBuild);
}
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::GetMajor(PRInt32* aMajor)
{
*aMajor = major;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::SetMajor(PRInt32 aMajor)
{
major = aMajor;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::GetMinor(PRInt32* aMinor)
{
*aMinor = minor;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::SetMinor(PRInt32 aMinor)
{
minor = aMinor;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::GetRelease(PRInt32* aRelease)
{
*aRelease = release;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::SetRelease(PRInt32 aRelease)
{
release = aRelease;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::GetBuild(PRInt32* aBuild)
{
*aBuild = build;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::SetBuild(PRInt32 aBuild)
{
build = aBuild;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::CompareTo(nsIDOMInstallVersion* aVersion, PRInt32* aReturn)
{
PRInt32 aMajor, aMinor, aRelease, aBuild;
aVersion->GetMajor(&aMajor);
aVersion->GetMinor(&aMinor);
aVersion->GetRelease(&aRelease);
aVersion->GetBuild(&aBuild);
CompareTo(aMajor, aMinor, aRelease, aBuild, aReturn);
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::CompareTo(const nsString& aString, PRInt32* aReturn)
{
nsInstallVersion inVersion;
inVersion.Init(aString);
return CompareTo(&inVersion, aReturn);
}
NS_IMETHODIMP
nsInstallVersion::CompareTo(PRInt32 aMajor, PRInt32 aMinor, PRInt32 aRelease, PRInt32 aBuild, PRInt32* aReturn)
{
int diff;
if ( major == aMajor )
{
if ( minor == aMinor )
{
if ( release == aRelease )
{
if ( build == aBuild )
diff = EQUAL;
else if ( build > aBuild )
diff = BLD_DIFF;
else
diff = BLD_DIFF_MINUS;
}
else if ( release > aRelease )
diff = REL_DIFF;
else
diff = REL_DIFF_MINUS;
}
else if ( minor > aMinor )
diff = MINOR_DIFF;
else
diff = MINOR_DIFF_MINUS;
}
else if ( major > aMajor )
diff = MAJOR_DIFF;
else
diff = MAJOR_DIFF_MINUS;
*aReturn = diff;
return NS_OK;
}
NS_IMETHODIMP
nsInstallVersion::ToString(nsString& aReturn)
{
char *result=NULL;
result = PR_sprintf_append(result, "%d.%d.%d.%d", major, minor, release, build);
aReturn.AssignWithConversion(result);
PR_FREEIF(result);
return NS_OK;
}
nsresult
nsInstallVersion::StringToVersionNumbers(const nsString& version, PRInt32 *aMajor, PRInt32 *aMinor, PRInt32 *aRelease, PRInt32 *aBuild)
{
PRInt32 errorCode;
int dot = version.FindChar('.', 0);
if ( dot == -1 )
{
*aMajor = version.ToInteger(&errorCode);
}
else
{
nsString majorStr;
version.Mid(majorStr, 0, dot);
*aMajor = majorStr.ToInteger(&errorCode);
int prev = dot+1;
dot = version.FindChar('.',prev);
if ( dot == -1 )
{
nsString minorStr;
version.Mid(minorStr, prev, version.Length() - prev);
*aMinor = minorStr.ToInteger(&errorCode);
}
else
{
nsString minorStr;
version.Mid(minorStr, prev, dot - prev);
*aMinor = minorStr.ToInteger(&errorCode);
prev = dot+1;
dot = version.FindChar('.',prev);
if ( dot == -1 )
{
nsString releaseStr;
version.Mid(releaseStr, prev, version.Length() - prev);
*aRelease = releaseStr.ToInteger(&errorCode);
}
else
{
nsString releaseStr;
version.Mid(releaseStr, prev, dot - prev);
*aRelease = releaseStr.ToInteger(&errorCode);
prev = dot+1;
if ( (int)version.Length() > dot )
{
nsString buildStr;
version.Mid(buildStr, prev, version.Length() - prev);
*aBuild = buildStr.ToInteger(&errorCode);
}
}
}
}
return errorCode;
}