/usr/include/thunderbird-11.0.1/mozilla/Omnijar.h is in thunderbird-dev 11.0.1+build1-0ubuntu2.
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* ***** 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 code.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Michael Wu <mwu@mozilla.com>
* Mike Hommey <mh@glandium.org>
*
* 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 MPL, 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 MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef mozilla_Omnijar_h
#define mozilla_Omnijar_h
#include "nscore.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsIFile.h"
#include "nsZipArchive.h"
class nsIURI;
namespace mozilla {
class Omnijar {
private:
/**
* Store an nsIFile for an omni.jar. We can store two paths here, one
* for GRE (corresponding to resource://gre/) and one for APP
* (corresponding to resource:/// and resource://app/), but only
* store one when both point to the same location (unified).
*/
static nsIFile *sPath[2];
/**
* Cached nsZipArchives for the corresponding sPath
*/
static nsZipArchive *sReader[2];
/**
* Has Omnijar::Init() been called?
*/
static bool sInitialized;
public:
enum Type {
GRE = 0,
APP = 1
};
/**
* Returns whether SetBase has been called at least once with
* a valid nsIFile
*/
static inline bool
IsInitialized()
{
return sInitialized;
}
/**
* Initializes the Omnijar API with the given directory or file for GRE and
* APP. Each of the paths given can be:
* - a file path, pointing to the omnijar file,
* - a directory path, pointing to a directory containing an "omni.jar" file,
* - nsnull for autodetection of an "omni.jar" file.
*/
static void Init(nsIFile *aGrePath = nsnull, nsIFile *aAppPath = nsnull);
/**
* Cleans up the Omnijar API
*/
static void CleanUp();
/**
* Returns an nsIFile pointing to the omni.jar file for GRE or APP.
* Returns nsnull when there is no corresponding omni.jar.
* Also returns nsnull for APP in the unified case.
*/
static inline already_AddRefed<nsIFile>
GetPath(Type aType)
{
NS_ABORT_IF_FALSE(IsInitialized(), "Omnijar not initialized");
nsCOMPtr<nsIFile> path = sPath[aType];
return path.forget();
}
/**
* Returns whether GRE or APP use an omni.jar. Returns PR_False for
* APP when using an omni.jar in the unified case.
*/
static inline bool
HasOmnijar(Type aType)
{
NS_ABORT_IF_FALSE(IsInitialized(), "Omnijar not initialized");
return !!sPath[aType];
}
/**
* Returns a nsZipArchive pointer for the omni.jar file for GRE or
* APP. Returns nsnull in the same cases GetPath() would.
*/
static inline already_AddRefed<nsZipArchive>
GetReader(Type aType)
{
NS_ABORT_IF_FALSE(IsInitialized(), "Omnijar not initialized");
nsRefPtr<nsZipArchive> reader = sReader[aType];
return reader.forget();
}
/**
* Returns a nsZipArchive pointer for the given path IAOI the given
* path is the omni.jar for either GRE or APP.
*/
static already_AddRefed<nsZipArchive> GetReader(nsIFile *aPath);
/**
* Returns the URI string corresponding to the omni.jar or directory
* for GRE or APP. i.e. jar:/path/to/omni.jar!/ for omni.jar and
* /path/to/base/dir/ otherwise. Returns an empty string for APP in
* the unified case.
* The returned URI is guaranteed to end with a slash.
*/
static nsresult GetURIString(Type aType, nsACString &result);
private:
/**
* Used internally, respectively by Init() and CleanUp()
*/
static void InitOne(nsIFile *aPath, Type aType);
static void CleanUpOne(Type aType);
}; /* class Omnijar */
} /* namespace mozilla */
#endif /* mozilla_Omnijar_h */
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