mirror of
https://github.com/gnustep/apps-gorm.git
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141 lines
3 KiB
Objective-C
141 lines
3 KiB
Objective-C
/* IBPlugin.m
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*
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* Copyright (C) 2007 Free Software Foundation, Inc.
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*
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* Author: Gregory John Casamento <greg_casamento@yahoo.com>
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* Date: 2007
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*
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* This file is part of GNUstep.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
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*/
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#include <Foundation/Foundation.h>
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#include <AppKit/AppKit.h>
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#include "IBPlugin.h"
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static NSMapTable *instanceMap = 0;
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@implementation IBPlugin
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+ (void) initialize
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{
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if (instanceMap == 0)
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{
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instanceMap = NSCreateMapTable(NSNonRetainedObjectMapKeyCallBacks,
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NSObjectMapValueCallBacks, 2);
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}
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}
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// Getting the shared plugin...
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/**
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* Returns the shared instance of the plugin.
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*/
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+ (id)sharedInstance
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{
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NSString *className = [self className];
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id instance = NSMapGet(instanceMap, className);
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if(instance == nil)
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{
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instance = [[[self class] alloc] init];
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NSMapInsert(instanceMap, className, instance);
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RELEASE(instance);
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}
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return instance;
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}
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// Loading and unloading plugin resources.
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/**
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* Notifies the receiver that the plugin will be loaded.
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*/
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- (void) didLoad
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{
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// do nothing... will be overridden.
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}
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/**
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* Notifies the receiver that the plugin will be unloaded.
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*/
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- (void) willUnload
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{
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// do nothing... will be overridden.
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}
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// Getting the plugins nib files.
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/**
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* Return the array of custom nib filenames. You are required to override
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* this method when creating a plugin.
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*/
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- (NSArray *) libraryNibNames
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{
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return nil;
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}
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// Configuring the plugin
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/**
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* Returns the name of the plugin to be displayed.
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*/
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- (NSString *) label
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{
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return [self className];
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}
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/**
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* The preferences panel/view that should be added to the preferences drop
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* down and preferences window.
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*/
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- (NSView *) preferencesView
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{
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return nil;
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}
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/**
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* Returns the list of frameworks needed to support the plugin.
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*/
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- (NSArray *) requiredFrameworks
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{
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return nil;
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}
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// Pasteboard notifications...
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/**
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* Notifies the receiver that one of it's components will be added to the
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* document.
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*/
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- (NSArray *) pasteboardObjectsForDraggedLibraryView: (NSView *)view
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{
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return nil;
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}
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/**
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* Notifies the receiver that objects were added to the document.
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*/
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- (void) document: (id<IBDocuments>)document
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didAddDraggedObjects: (NSArray *)roots
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fromDraggedLibraryView: (NSView *)view
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{
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// do nothing;
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}
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- (void) dealloc
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{
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NSMapRemove(instanceMap,[self className]);
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[super dealloc];
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}
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@end
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