gecko-dev/dom/plugins/base/nsPluginsDir.h

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2.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsPluginsDir_h_
#define nsPluginsDir_h_
#include "nsError.h"
#include "nsIFile.h"
/**
* nsPluginsDir is nearly obsolete. Directory Service should be used instead.
* It exists for the sake of one static function.
*/
class nsPluginsDir {
public:
/**
* Determines whether or not the given file is actually a plugin file.
*/
static bool IsPluginFile(nsIFile* file);
};
struct PRLibrary;
struct nsPluginInfo {
char* fName; // name of the plugin
char* fDescription; // etc.
uint32_t fVariantCount;
char** fMimeTypeArray;
char** fMimeDescriptionArray;
char** fExtensionArray;
char* fFileName;
char* fFullPath;
char* fVersion;
};
/**
* Provides cross-platform access to a plugin file. Deals with reading
* properties from the plugin file, and loading the plugin's shared
* library. Insulates core nsIPluginHost implementations from these
* details.
*/
class nsPluginFile {
PRLibrary* pLibrary;
nsCOMPtr<nsIFile> mPlugin;
public:
/**
* If spec corresponds to a valid plugin file, constructs a reference
* to a plugin file on disk. Plugins are typically located using the
* nsPluginsDir class.
*/
explicit nsPluginFile(nsIFile* spec);
virtual ~nsPluginFile();
/**
* Loads the plugin into memory using NSPR's shared-library loading
* mechanism. Handles platform differences in loading shared libraries.
*/
nsresult LoadPlugin(PRLibrary **outLibrary);
/**
* Obtains all of the information currently available for this plugin.
* Has a library outparam which will be non-null if a library load was required.
*/
nsresult GetPluginInfo(nsPluginInfo &outPluginInfo, PRLibrary **outLibrary);
/**
* Should be called after GetPluginInfo to free all allocated stuff
*/
nsresult FreePluginInfo(nsPluginInfo &PluginInfo);
};
#endif /* nsPluginsDir_h_ */