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142 lines
3.8 KiB
C++
142 lines
3.8 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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// Original file Copyright Crytek GMBH or its affiliates, used under license.
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#ifndef CRYINCLUDE_EDITOR_UTIL_FILECHANGEMONITOR_H
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#define CRYINCLUDE_EDITOR_UTIL_FILECHANGEMONITOR_H
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#pragma once
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#if !defined(Q_MOC_RUN)
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#include <AzCore/std/containers/set.h>
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#include <QFileInfoList>
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#include <QFileSystemWatcher>
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#include <QObject>
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#include <QQueue>
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#include <QScopedPointer>
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#endif
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class CFileChangeMonitorListener;
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struct SFileChangeInfo
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{
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enum EChangeType
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{
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//! error or unknown change type
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eChangeType_Unknown,
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//! the file was created
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eChangeType_Created,
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//! the file was deleted
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eChangeType_Deleted,
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//! the file was modified (size changed,write)
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eChangeType_Modified,
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//! this is the old name of a renamed file
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eChangeType_RenamedOldName,
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//! this is the new name of a renamed file
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eChangeType_RenamedNewName
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};
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SFileChangeInfo()
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: changeType(eChangeType_Unknown)
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{
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}
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bool operator==(const SFileChangeInfo& rhs) const
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{
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return changeType == rhs.changeType && filename == rhs.filename;
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}
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QString filename;
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EChangeType changeType;
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};
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// Monitors directory for any changed files
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class CFileChangeMonitor : public QObject
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{
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public:
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friend class CEditorFileMonitor;
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typedef AZStd::set<CFileChangeMonitorListener*> TListeners;
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protected:
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explicit CFileChangeMonitor(QObject* parent = nullptr);
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~CFileChangeMonitor();
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void Initialize();
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static void DeleteInstance();
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static CFileChangeMonitor* s_pFileMonitorInstance;
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public:
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static CFileChangeMonitor* Instance();
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bool MonitorItem(const QString& sItem);
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void StopMonitor();
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void SetEnabled(bool bEnable);
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bool IsEnabled();
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//! get next modified file, this file will be delete from list after calling this function,
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//! call it until HaveModifiedFiles return true or this function returns false
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void Subscribe(CFileChangeMonitorListener* pListener);
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void Unsubscribe(CFileChangeMonitorListener* pListener);
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bool IsDirectory(const char* pFilename);
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bool IsFile(const char* pFilename);
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bool IsLoggingChanges() const
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{
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return ed_logFileChanges != 0;
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}
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void AddIgnoreFileMask(const char* pMask);
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void RemoveIgnoreFileMask(const char* pMask, int aAfterDelayMsec = 1000);
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private:
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void OnDirectoryChange(const QString &path);
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void OnFileChange(const QString &path);
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void NotifyListeners(const QString &path, SFileChangeInfo::EChangeType changeType);
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int ed_logFileChanges;
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QScopedPointer<QFileSystemWatcher> m_watcher;
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TListeners m_listeners;
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QQueue<SFileChangeInfo> m_changes;
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QStringList m_ignoreMasks;
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QHash<QString, QFileInfoList> m_entries;
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};
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// Used as base class (aka interface) to subscribe for file change events
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class CFileChangeMonitorListener
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{
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public:
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CFileChangeMonitorListener()
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: m_pMonitor(NULL)
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{
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}
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virtual ~CFileChangeMonitorListener()
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{
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if (m_pMonitor)
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{
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m_pMonitor->Unsubscribe(this);
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}
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}
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virtual void OnFileMonitorChange(const SFileChangeInfo& rChange) = 0;
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void SetMonitor(CFileChangeMonitor* pMonitor)
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{
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m_pMonitor = pMonitor;
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}
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private:
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CFileChangeMonitor* m_pMonitor;
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};
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#endif // CRYINCLUDE_EDITOR_UTIL_FILECHANGEMONITOR_H
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