2440d2c1cf
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2091 a95241bf-73f2-0310-859d-f6bbb57e9c96
91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
/*****************************************************************************/
|
|
// FolderWatcher
|
|
//
|
|
// Author
|
|
// Michael Pfeiffer
|
|
//
|
|
// This application and all source files used in its construction, except
|
|
// where noted, are licensed under the MIT License, and have been written
|
|
// and are:
|
|
//
|
|
// Copyright (c) 2002 OpenBeOS Project
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the "Software"),
|
|
// to deal in the Software without restriction, including without limitation
|
|
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
// and/or sell copies of the Software, and to permit persons to whom the
|
|
// Software is furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
/*****************************************************************************/
|
|
|
|
#ifndef _FOLDER_WATCHER_H
|
|
#define _FOLDER_WATCHER_H
|
|
|
|
#include <Directory.h>
|
|
#include <Entry.h>
|
|
#include <Handler.h>
|
|
#include <Looper.h>
|
|
#include <String.h>
|
|
#include <StorageDefs.h>
|
|
|
|
|
|
class FolderListener {
|
|
public:
|
|
// entry created or moved into folder
|
|
virtual void EntryCreated(node_ref* node, entry_ref* entry) {};
|
|
// entry removed from folder (or moved to another folder)
|
|
virtual void EntryRemoved(node_ref* node) {};
|
|
// attribute of an entry has changed
|
|
virtual void AttributeChanged(node_ref* node) {};
|
|
};
|
|
|
|
|
|
// The class FolderWatcher watches creation, deletion of files in a directory
|
|
// and optionally watches attribute changes of files in the directory.
|
|
class FolderWatcher : public BHandler {
|
|
typedef BHandler inherited;
|
|
|
|
private:
|
|
BDirectory fFolder;
|
|
FolderListener* fListener;
|
|
bool fWatchAttrChanges;
|
|
|
|
bool BuildEntryRef(BMessage* msg, const char* dirName, entry_ref* entry);
|
|
bool BuildNodeRef(BMessage* msg, node_ref* node);
|
|
|
|
void HandleCreatedEntry(BMessage* msg, const char* dirName);
|
|
void HandleRemovedEntry(BMessage* msg);
|
|
void HandleChangedAttr(BMessage* msg);
|
|
|
|
public:
|
|
// start node watching (optionally watch attribute changes)
|
|
FolderWatcher(BLooper* looper, const BDirectory& folder, bool watchAttrChanges = false);
|
|
// stop node watching
|
|
virtual ~FolderWatcher();
|
|
|
|
void MessageReceived(BMessage* msg);
|
|
|
|
// the directory
|
|
BDirectory* Folder() { return &fFolder; }
|
|
|
|
// set listener that is notified of changes in the directory
|
|
void SetListener(FolderListener* listener);
|
|
|
|
// start/stop watching of attribute changes
|
|
status_t StartAttrWatching(node_ref* node);
|
|
status_t StopAttrWatching(node_ref* node);
|
|
};
|
|
|
|
#endif
|