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/**
ScriptingSupport
Code for loading scripting
Copy and include this file into your application project.
NOTE: Please, do not modify this file. It is part of the StepTalk and
depends on its interface.
Copyright (c) 2002 Stefan Urbanek
Written by: Stefan Urbanek <urbanek@host.sk>
Date: 2002 Apr 13
This file is part of the StepTalk project.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "STScriptingSupport.h"
#include <AppKit/NSApplication.h>
#include <AppKit/NSPanel.h>
#include <Foundation/NSArray.h>
#include <Foundation/NSBundle.h>
#include <Foundation/NSEnumerator.h>
#include <Foundation/NSFileManager.h>
#include <Foundation/NSPathUtilities.h>
#include <Foundation/NSString.h>
@interface NSApplication (STPrivateMethods)
- (BOOL)setUpApplicationScripting;
- (NSBundle *) _applicationScriptingBundle;
@end
@implementation NSApplication(STApplicationScriptingInit)
- (BOOL)initializeApplicationScripting
{
NSBundle *bundle;
if(![self isScriptingSupported])
{
NSRunAlertPanel(@"Invalid usage of scripting support",
@"Please, contact the author of this application "
@"and let him know about this error. The author forgot "
@"to check whether the scripting is supported or not.",
@"Cancel", nil, nil);
return NO;
}
NSLog(@"Loading application scripting support");
bundle = [self _applicationScriptingBundle];
if(bundle)
{
/* Load the bundle! */
[[bundle principalClass] class];
if([self respondsToSelector:@selector(setUpApplicationScripting)])
{
return [self setUpApplicationScripting];
}
else
{
NSRunAlertPanel(@"Broken scripting support",
@"Scripting support cannot be loaded, because "
@"the application scripting bundle is broken.",
@"Cancel", nil, nil);
return NO;
}
}
else
{
NSRunAlertPanel(@"Broken scripting support",
@"Application scripting bundle cannot be loaded.",
@"Cancel", nil, nil);
return NO;
}
}
- (BOOL)isScriptingSupported
{
return ([self _applicationScriptingBundle] != nil);
}
- (NSBundle *)_applicationScriptingBundle
{
NSFileManager *manager = [NSFileManager defaultManager];
NSEnumerator *enumerator;
NSString *path;
NSArray *paths;
BOOL isDir;
paths = NSStandardLibraryPaths();
enumerator = [paths objectEnumerator];
while( (path = [enumerator nextObject]) )
{
path = [path stringByAppendingPathComponent:@"Bundles"];
path = [path stringByAppendingPathComponent:@"ApplicationScripting"];
path = [path stringByAppendingPathExtension:@"bundle"];
if( [manager fileExistsAtPath:path isDirectory:&isDir] && isDir)
{
return [NSBundle bundleWithPath:path];
}
}
return nil;
}
- (void)_loadAppTalkAndRetryAction:(SEL)sel with:(id)anObject
{
static BOOL isIn = NO;
if(isIn)
{
NSLog(@"Error occured while loading application scripting support");
isIn = NO;
return;
}
isIn = YES;
if([self initializeApplicationScripting])
{
[self performSelector:sel withObject:anObject];
}
isIn = NO;
}
- (id)_loadAppTalkAndRetryAction:(SEL)sel
{
static BOOL isIn = NO;
id retval = nil;
if(isIn)
{
NSLog(@"Error occured while loading application scripting support");
isIn = NO;
return nil;
}
isIn = YES;
if([self initializeApplicationScripting])
{
retval = [self performSelector:sel];
}
isIn = NO;
return retval;
}
- (void)orderFrontScriptsPanel:(id)sender
{
[self _loadAppTalkAndRetryAction:_cmd with:sender];
}
- (void)orderFrontTranscriptWindow:(id)sender
{
[self _loadAppTalkAndRetryAction:_cmd with:sender];
}
- (NSMenu *)scriptingMenu
{
return [self _loadAppTalkAndRetryAction:_cmd];
}
@end
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