94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
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/*==============================================================================
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Copyright 2018 by Roland Rabien
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For more information visit www.rabiensoftware.com
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==============================================================================*/
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#pragma once
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#if defined JUCE_MAC || defined JUCE_WINDOWS || defined JUCE_LINUX
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/**
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Watches a folder in the file system for changes.
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Listener callbcks will be called every time a file is
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created, modified, deleted or renamed in the watched
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folder.
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FileSystemWatcher will also recursively watch all subfolders on
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macOS and windows and will not on Linux.
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*/
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class FileSystemWatcher
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{
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public:
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//==============================================================================
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FileSystemWatcher();
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~FileSystemWatcher();
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//==============================================================================
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/** Adds a folder to be watched */
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void addFolder (const File& folder);
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/** Removes a folder from being watched */
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void removeFolder (const File& folder);
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/** Removes all folders from being watched */
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void removeAllFolders();
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/** A set of events that can happen to a file.
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When a file is renamed it will appear as the
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original filename being deleted and the new
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filename being created
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*/
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enum FileSystemEvent
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{
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fileCreated,
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fileDeleted,
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fileUpdated,
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fileRenamedOldName,
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fileRenamedNewName
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};
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//==============================================================================
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/** Receives callbacks from the FileSystemWatcher when a file changes */
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class Listener
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{
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public:
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virtual ~Listener() = default;
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/* Called when any file in the listened to folder changes with the name of
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the folder that has changed. For example, use this for a file browser that
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needs to refresh any time a file changes */
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virtual void folderChanged (const File) {}
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/* Called for each file that has changed and how it has changed. Use this callback
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if you need to reload a file when it's contents change */
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virtual void fileChanged (const File, FileSystemEvent) {}
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};
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/** Registers a listener to be told when things happen to the text.
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@see removeListener
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*/
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void addListener (Listener* newListener);
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/** Deregisters a listener.
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@see addListener
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*/
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void removeListener (Listener* listener);
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private:
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class Impl;
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void folderChanged (const File& folder);
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void fileChanged (const File& file, FileSystemEvent fsEvent);
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ListenerList<Listener> listeners;
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OwnedArray<Impl> watched;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FileSystemWatcher)
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};
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#endif
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