mirror of
https://github.com/gnustep/libs-back.git
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0f8c5487c7
Prepare for next release. git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@25538 72102866-910b-0410-8b05-ffd578937521
1393 lines
29 KiB
Objective-C
1393 lines
29 KiB
Objective-C
/*
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||
gpbs.m
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GNUstep pasteboard server
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Copyright (C) 1997,1999 Free Software Foundation, Inc.
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Author: Richard Frith-Macdonald <richard@brainstorm.co.uk>
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Date: August 1997
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This file is part of the GNUstep Project
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 3
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of the License, or (at your option) any later version.
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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 General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with this library; see the file COPYING.
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If not, see <http://www.gnu.org/licenses/> or write to the
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Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <Foundation/Foundation.h>
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#include <AppKit/NSPasteboard.h>
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#include <GNUstepGUI/GSPasteboardServer.h>
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#include "config.h"
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#include <fcntl.h>
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#ifdef HAVE_SYSLOG_H
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#include <syslog.h>
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#endif
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#include <signal.h>
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||
#include <unistd.h>
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#include <ctype.h>
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#ifdef __MINGW__
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#include "process.h"
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#endif
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#ifndef NSIG
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#define NSIG 32
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#endif
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||
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static BOOL is_daemon = NO; /* Currently running as daemon. */
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static BOOL auto_stop = NO; /* Stop when all connections closed. */
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static char ebuf[2048];
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||
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||
static NSMutableArray *connections = nil;
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#ifdef HAVE_SYSLOG
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static int log_priority = LOG_DEBUG;
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static void
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gpbs_log (int prio)
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{
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if (is_daemon)
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{
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syslog (log_priority | prio, ebuf);
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||
}
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else if (prio == LOG_INFO)
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{
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write (1, ebuf, strlen (ebuf));
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write (1, "\n", 1);
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}
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else
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{
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write (2, ebuf, strlen (ebuf));
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write (2, "\n", 1);
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}
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if (prio == LOG_CRIT)
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{
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if (is_daemon)
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{
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syslog (LOG_CRIT, "exiting.");
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}
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else
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{
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fprintf (stderr, "exiting.\n");
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fflush (stderr);
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}
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exit(EXIT_FAILURE);
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}
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}
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#else
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#define LOG_CRIT 2
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#define LOG_DEBUG 0
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#define LOG_ERR 1
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#define LOG_INFO 0
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#define LOG_WARNING 0
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void
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gpbs_log (int prio)
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{
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write (2, ebuf, strlen (ebuf));
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write (2, "\n", 1);
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if (prio == LOG_CRIT)
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{
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fprintf (stderr, "exiting.\n");
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fflush (stderr);
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exit(EXIT_FAILURE);
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}
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}
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#endif
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@class PasteboardServer;
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@class PasteboardObject;
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@protocol XPb
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+ (id) ownerByOsPb: (NSString*)p;
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+ (BOOL) initializePasteboard;
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@end
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static Class xPbClass;
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int verbose = 0;
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#define MAXHIST 100
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PasteboardServer *server = nil;
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NSConnection *conn = nil;
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NSLock *dictionary_lock = nil;
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NSMutableDictionary *pasteboards = nil;
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@interface NSPasteboard (GNULocal)
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+ (void) _localServer: (id<GSPasteboardSvr>)s;
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@end
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@interface PasteboardData: NSObject
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{
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NSData *data;
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NSString *type;
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id owner;
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id pboard;
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BOOL wantsChangedOwner;
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BOOL hasGNUDataForType;
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BOOL hasStdDataForType;
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}
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+ (PasteboardData*) newWithType: (NSString*)aType
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owner: (id)anObject
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pboard: (id)anotherObject
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wantsChangedOwner: (BOOL)wants
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hasStdDataForType: (BOOL)StdData
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hasGNUDataForType: (BOOL)GNUData;
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- (BOOL) checkConnection: (NSConnection*)c;
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- (NSData*) data;
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- (NSData*) newDataWithVersion: (int)version;
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- (id) owner;
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- (id) pboard;
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- (void) setData: (NSData*)d;
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- (NSString*) type;
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||
- (BOOL) wantsChangedOwner;
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@end
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@implementation PasteboardData
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+ (PasteboardData*) newWithType: (NSString*)aType
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owner: (id)anObject
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pboard: (id)anotherObject
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wantsChangedOwner: (BOOL)wants
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hasStdDataForType: (BOOL)StdData
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hasGNUDataForType: (BOOL)GNUData;
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{
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PasteboardData* d = [PasteboardData alloc];
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if (d)
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{
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d->type = RETAIN(aType);
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d->owner = RETAIN(anObject);
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d->pboard = RETAIN(anotherObject);
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d->wantsChangedOwner = wants;
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d->hasStdDataForType = StdData;
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d->hasGNUDataForType = GNUData;
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}
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return d;
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}
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- (BOOL) checkConnection: (NSConnection*)c
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{
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BOOL ourConnection = NO;
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id o;
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if (owner && [owner isProxy] && [owner connectionForProxy] == c)
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{
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o = owner;
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owner = nil;
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RELEASE(o);
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o = pboard;
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pboard = nil;
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RELEASE(o);
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ourConnection = YES;
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}
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if (pboard && [pboard isProxy] && [pboard connectionForProxy] == c)
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{
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o = owner;
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owner = nil;
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RELEASE(o);
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o = pboard;
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pboard = nil;
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RELEASE(o);
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ourConnection = YES;
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}
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return ourConnection;
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}
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- (void) dealloc
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{
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RELEASE(type);
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RELEASE(data);
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RELEASE(owner);
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RELEASE(pboard);
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[super dealloc];
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}
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- (NSString*) description
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{
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return [NSString stringWithFormat: @"PasteboardData for type '%@'", type];
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}
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- (NSData*) data
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{
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if (verbose)
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{
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NSLog(@"get data for %p\n", self);
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}
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return data;
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}
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- (NSData*) newDataWithVersion: (int)version
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{
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/*
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* If the owner of this item is an X window - we can't use the data from
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* the last time the selection was accessed because the X window may have
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* changed it's selection without telling us - isn't X wonderful :-(
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*/
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if (data != nil && owner != nil
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&& [owner isProxy] == NO && [owner isKindOfClass: xPbClass] == YES)
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{
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DESTROY(data);
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}
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if (data == nil && (owner && pboard))
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{
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if (hasGNUDataForType)
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{
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[owner pasteboard: pboard
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provideDataForType: type
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andVersion: version];
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}
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else if (hasStdDataForType)
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{
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[owner pasteboard: pboard
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provideDataForType: type];
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}
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}
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return [self data];
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}
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- (id) owner
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{
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return owner;
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}
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- (id) pboard
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{
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return pboard;
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}
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- (void) setData: (NSData*)d
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{
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if (verbose)
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{
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NSLog(@"set data for %p\n", self);
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}
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ASSIGN(data, d);
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}
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- (NSString*) type
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{
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return type;
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}
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||
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||
- (BOOL) wantsChangedOwner
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{
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||
return wantsChangedOwner;
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||
}
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||
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||
@end
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||
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||
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||
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@interface PasteboardEntry: NSObject
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{
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int refNum;
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||
id owner;
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||
id pboard;
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NSMutableArray *items;
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||
BOOL wantsChangedOwner;
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||
BOOL hasGNUDataForType;
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||
BOOL hasStdDataForType;
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||
}
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||
+ (PasteboardEntry*) newWithTypes: (NSArray*)someTypes
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owner: (id)anOwner
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pboard: (id)aPboard
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ref: (int)count;
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||
- (void) addTypes: (NSArray*)types owner: (id)owner pasteboard: (id)pb;
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- (BOOL) checkConnection: (NSConnection*)c;
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- (PasteboardData*) itemForType: (NSString*)type;
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- (void) lostOwnership;
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- (id) owner;
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||
- (int) refNum;
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||
- (NSArray*) types;
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||
@end
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||
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||
@implementation PasteboardEntry
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+ (PasteboardEntry*) newWithTypes: (NSArray*)someTypes
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owner: (id)anOwner
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pboard: (id)aPboard
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ref: (int)count
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{
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PasteboardEntry* e = [PasteboardEntry alloc];
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if (e)
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{
|
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int i;
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e->owner = RETAIN(anOwner);
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e->pboard = RETAIN(aPboard);
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if (anOwner && [anOwner respondsToSelector:
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@selector(pasteboardChangedOwner:)])
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{
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e->wantsChangedOwner = YES;
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}
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if (anOwner && [anOwner respondsToSelector:
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@selector(pasteboard:provideDataForType:)])
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{
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e->hasStdDataForType = YES;
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}
|
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if (anOwner && [anOwner respondsToSelector:
|
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@selector(pasteboard:provideDataForType:andVersion:)])
|
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{
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e->hasGNUDataForType = YES;
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||
}
|
||
|
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e->items = [[NSMutableArray alloc] initWithCapacity: [someTypes count]];
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for (i = 0; i < [someTypes count]; i++)
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{
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NSString *type = [someTypes objectAtIndex: i];
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PasteboardData *d;
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|
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d = [PasteboardData newWithType: type
|
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owner: anOwner
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pboard: aPboard
|
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wantsChangedOwner: e->wantsChangedOwner
|
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hasStdDataForType: e->hasStdDataForType
|
||
hasGNUDataForType: e->hasGNUDataForType];
|
||
[e->items addObject: d];
|
||
RELEASE(d);
|
||
}
|
||
e->refNum = count;
|
||
if (verbose > 1)
|
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{
|
||
NSLog(@"New PasteboardEntry %d with items - %@", count, e->items);
|
||
}
|
||
}
|
||
return e;
|
||
}
|
||
|
||
- (void) addTypes: (NSArray*)newTypes
|
||
owner: (id)newOwner
|
||
pasteboard: (id)pb
|
||
{
|
||
int i;
|
||
BOOL wants = NO;
|
||
BOOL StdData = NO;
|
||
BOOL GNUData = NO;
|
||
|
||
if (newOwner && [newOwner respondsToSelector:
|
||
@selector(pasteboardChangedOwner:)])
|
||
{
|
||
wants = YES;
|
||
}
|
||
if (newOwner && [newOwner respondsToSelector:
|
||
@selector(pasteboard:provideDataForType:)])
|
||
{
|
||
StdData = YES;
|
||
}
|
||
if (newOwner && [newOwner respondsToSelector:
|
||
@selector(pasteboard:provideDataForType:andVersion:)])
|
||
{
|
||
GNUData = YES;
|
||
}
|
||
|
||
for (i = 0; i < [newTypes count]; i++)
|
||
{
|
||
NSString *type = (NSString*)[newTypes objectAtIndex: i];
|
||
|
||
if ([self itemForType: type] == nil)
|
||
{
|
||
PasteboardData* d;
|
||
|
||
d = [PasteboardData newWithType: type
|
||
owner: newOwner
|
||
pboard: pb
|
||
wantsChangedOwner: wants
|
||
hasStdDataForType: StdData
|
||
hasGNUDataForType: GNUData];
|
||
[items addObject: d];
|
||
RELEASE(d);
|
||
}
|
||
}
|
||
if (verbose > 1)
|
||
{
|
||
NSLog(@"Modified PasteboardEntry %d with items - %@", refNum, items);
|
||
}
|
||
}
|
||
|
||
- (BOOL) checkConnection: (NSConnection*)c
|
||
{
|
||
BOOL ourConnection = NO;
|
||
unsigned i;
|
||
id o;
|
||
|
||
if (owner && [owner isProxy] && [owner connectionForProxy] == c)
|
||
{
|
||
o = owner;
|
||
owner = nil;
|
||
RELEASE(o);
|
||
o = pboard;
|
||
pboard = nil;
|
||
RELEASE(o);
|
||
ourConnection = YES;
|
||
}
|
||
|
||
if (pboard && [pboard isProxy] && [pboard connectionForProxy] == c)
|
||
{
|
||
o = owner;
|
||
owner = nil;
|
||
RELEASE(o);
|
||
o = pboard;
|
||
pboard = nil;
|
||
RELEASE(o);
|
||
ourConnection = YES;
|
||
}
|
||
|
||
for (i = [items count]; i > 0; i--)
|
||
{
|
||
PasteboardData *d = [items objectAtIndex: i-1];
|
||
|
||
if ([d checkConnection: c] == YES && [d data] == nil && [d owner] == nil)
|
||
{
|
||
if (verbose > 1)
|
||
{
|
||
NSLog(@"Removing item from PasteboardEntry %d\n", refNum);
|
||
}
|
||
[items removeObjectAtIndex: i-1];
|
||
}
|
||
}
|
||
return ourConnection;
|
||
}
|
||
|
||
- (void) dealloc
|
||
{
|
||
RELEASE(owner);
|
||
RELEASE(pboard);
|
||
RELEASE(items);
|
||
[super dealloc];
|
||
}
|
||
|
||
- (PasteboardData*) itemForType: (NSString*)type
|
||
{
|
||
unsigned i, count;
|
||
|
||
count = [items count];
|
||
for (i = 0; i < count; i++)
|
||
{
|
||
PasteboardData *d = [items objectAtIndex: i];
|
||
|
||
if ([[d type] isEqual: type])
|
||
{
|
||
return d;
|
||
}
|
||
}
|
||
return nil;
|
||
}
|
||
|
||
- (void) lostOwnership
|
||
{
|
||
NSMutableArray *a = [NSMutableArray arrayWithCapacity: 4];
|
||
unsigned i;
|
||
|
||
NS_DURING
|
||
{
|
||
if (wantsChangedOwner == YES && owner != nil)
|
||
{
|
||
[a addObject: owner];
|
||
}
|
||
|
||
for (i = 0; i < [items count]; i++)
|
||
{
|
||
PasteboardData *d = [items objectAtIndex: i];
|
||
|
||
if ([d wantsChangedOwner] == YES && [d owner] != nil
|
||
&& [a indexOfObjectIdenticalTo: [d owner]] == NSNotFound)
|
||
{
|
||
[a addObject: [d owner]];
|
||
}
|
||
}
|
||
|
||
if (wantsChangedOwner == YES)
|
||
{
|
||
[owner pasteboardChangedOwner: pboard];
|
||
if (owner != nil)
|
||
{
|
||
[a removeObjectIdenticalTo: owner];
|
||
}
|
||
}
|
||
|
||
for (i = 0; i < [items count] && [a count] > 0; i++)
|
||
{
|
||
PasteboardData *d = [items objectAtIndex: i];
|
||
id o = [d owner];
|
||
|
||
if (o != nil && [a containsObject: o])
|
||
{
|
||
[o pasteboardChangedOwner: [d pboard]];
|
||
[a removeObjectIdenticalTo: o];
|
||
}
|
||
}
|
||
}
|
||
NS_HANDLER
|
||
{
|
||
NSLog(@"Error informing objects of ownership change - %@\n",
|
||
[localException reason]);
|
||
}
|
||
NS_ENDHANDLER
|
||
}
|
||
|
||
- (id) owner
|
||
{
|
||
return owner;
|
||
}
|
||
|
||
- (int) refNum
|
||
{
|
||
return refNum;
|
||
}
|
||
|
||
- (NSArray*) types
|
||
{
|
||
NSMutableArray* t = [NSMutableArray arrayWithCapacity: [items count]];
|
||
unsigned int i;
|
||
|
||
for (i = 0; i < [items count]; i++)
|
||
{
|
||
PasteboardData* d = [items objectAtIndex: i];
|
||
[t addObject: [d type]];
|
||
}
|
||
return t;
|
||
}
|
||
|
||
@end
|
||
|
||
|
||
|
||
@interface PasteboardObject: NSObject <GSPasteboardObj>
|
||
{
|
||
NSString *name;
|
||
int nextCount;
|
||
unsigned histLength;
|
||
NSMutableArray *history;
|
||
PasteboardEntry *current;
|
||
}
|
||
|
||
+ (PasteboardObject*) pasteboardWithName: (NSString*)name;
|
||
|
||
- (int) addTypes: (NSArray*)types
|
||
owner: (id)owner
|
||
pasteboard: (NSPasteboard*)pboard
|
||
oldCount: (int)count;
|
||
- (NSString*) availableTypeFromArray: (NSArray*)types
|
||
changeCount: (int*)count;
|
||
- (int) changeCount;
|
||
- (BOOL) checkConnection: (NSConnection*)c;
|
||
- (NSData*) dataForType: (NSString*)type
|
||
oldCount: (int)count
|
||
mustBeCurrent: (BOOL)flag;
|
||
- (int) declareTypes: (NSArray*)types
|
||
owner: (id)owner
|
||
pasteboard: (NSPasteboard*)pboard;
|
||
- (PasteboardEntry*) entryByCount: (int)count;
|
||
- (NSString*) name;
|
||
- (void) releaseGlobally;
|
||
- (BOOL) setData: (NSData*)data
|
||
forType: (NSString*)type
|
||
isFile: (BOOL)flag
|
||
oldCount: (int)count;
|
||
- (void) setHistory: (unsigned)length;
|
||
- (NSArray*) typesAndChangeCount: (int*)count;
|
||
|
||
@end
|
||
|
||
@implementation PasteboardObject
|
||
|
||
+ (void) initialize
|
||
{
|
||
pasteboards = [[NSMutableDictionary alloc] initWithCapacity: 8];
|
||
dictionary_lock = [[NSLock alloc] init];
|
||
}
|
||
|
||
+ (PasteboardObject*) pasteboardWithName: (NSString*)aName
|
||
{
|
||
static int number = 0;
|
||
PasteboardObject* pb;
|
||
|
||
[dictionary_lock lock];
|
||
while (aName == nil)
|
||
{
|
||
aName = [NSString stringWithFormat: @"%dlocalName", number++];
|
||
if ([pasteboards objectForKey: aName] == nil)
|
||
{
|
||
break; // This name is unique.
|
||
}
|
||
else
|
||
{
|
||
aName = nil; // Name already in use - try another.
|
||
}
|
||
}
|
||
|
||
pb = [pasteboards objectForKey: aName];
|
||
if (pb == nil)
|
||
{
|
||
pb = [PasteboardObject alloc];
|
||
pb->name = RETAIN(aName);
|
||
pb->nextCount = 1;
|
||
pb->histLength = 1;
|
||
pb->history = [[NSMutableArray alloc] initWithCapacity: 2];
|
||
pb->current = nil;
|
||
[pasteboards setObject: pb forKey: aName];
|
||
AUTORELEASE(pb);
|
||
}
|
||
[dictionary_lock unlock];
|
||
return pb;
|
||
}
|
||
|
||
- (int) addTypes: (NSArray*)types
|
||
owner: (id)owner
|
||
pasteboard: (NSPasteboard*)pb
|
||
oldCount: (int)count
|
||
{
|
||
PasteboardEntry *e = [self entryByCount: count];
|
||
|
||
if ([owner isProxy] == YES)
|
||
{
|
||
Protocol *p = @protocol(GSPasteboardCallback);
|
||
|
||
[owner setProtocolForProxy: p];
|
||
}
|
||
|
||
if (e)
|
||
{
|
||
id x = [xPbClass ownerByOsPb: name];
|
||
|
||
[e addTypes: types owner: owner pasteboard: pb];
|
||
|
||
/*
|
||
* If there is an X pasteboard corresponding to this pasteboard, and the
|
||
* X system doesn't currently own the pasteboard, we must inform it of
|
||
* the change in the types of data supplied by this pasteboard.
|
||
* We do this by simulating a change of pasteboard ownership.
|
||
*/
|
||
if (x != owner && x != nil)
|
||
[x pasteboardChangedOwner: pb];
|
||
return count;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
- (NSString*) availableTypeFromArray: (NSArray*)types
|
||
changeCount: (int*)count
|
||
{
|
||
PasteboardEntry *e = nil;
|
||
|
||
if (*count <= 0)
|
||
{
|
||
e = current;
|
||
}
|
||
else
|
||
{
|
||
e = [self entryByCount: *count];
|
||
}
|
||
if (e)
|
||
{
|
||
unsigned i;
|
||
|
||
*count = [e refNum];
|
||
for (i = 0; i < [types count]; i++)
|
||
{
|
||
NSString* key = [types objectAtIndex: i];
|
||
|
||
if ([e itemForType: key] != nil)
|
||
{
|
||
return key;
|
||
}
|
||
}
|
||
}
|
||
return nil;
|
||
}
|
||
|
||
- (int) changeCount
|
||
{
|
||
if (current)
|
||
{
|
||
return [current refNum];
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
- (BOOL) checkConnection: (NSConnection*)c
|
||
{
|
||
unsigned i;
|
||
BOOL found = NO;
|
||
|
||
for (i = 0; i < [history count]; i++)
|
||
{
|
||
if ([[history objectAtIndex: i] checkConnection: c] == YES)
|
||
{
|
||
found = YES;
|
||
}
|
||
}
|
||
return found;
|
||
}
|
||
|
||
- (NSData*) dataForType: (NSString*)type
|
||
oldCount: (int)count
|
||
mustBeCurrent: (BOOL)flag
|
||
{
|
||
PasteboardEntry *e = nil;
|
||
|
||
if (flag)
|
||
{
|
||
e = current;
|
||
}
|
||
else
|
||
{
|
||
e = [self entryByCount: count];
|
||
}
|
||
if (verbose)
|
||
{
|
||
NSLog(@"%@ get data for type '%@' version %d\n",
|
||
self, type, e ? [e refNum] : -1);
|
||
}
|
||
if (e)
|
||
{
|
||
PasteboardData *d = [e itemForType: type];
|
||
|
||
if (d)
|
||
{
|
||
return [d newDataWithVersion: [e refNum]];
|
||
}
|
||
}
|
||
return nil;
|
||
}
|
||
|
||
- (void) dealloc
|
||
{
|
||
RELEASE(name);
|
||
RELEASE(history);
|
||
[super dealloc];
|
||
}
|
||
|
||
- (int) declareTypes: (bycopy NSArray*)types
|
||
owner: (id)owner
|
||
pasteboard: (NSPasteboard*)pb
|
||
{
|
||
PasteboardEntry *old = RETAIN(current);
|
||
id x = [xPbClass ownerByOsPb: name];
|
||
|
||
if ([owner isProxy] == YES)
|
||
{
|
||
Protocol *p = @protocol(GSPasteboardCallback);
|
||
NSConnection *c = [owner connectionForProxy];
|
||
|
||
[owner setProtocolForProxy: p];
|
||
|
||
/* If this is on a connection we don't know about, add it to our
|
||
* list of pasteboard connections so that we can track its removal
|
||
* in order to auto_stop if necessary.
|
||
*/
|
||
if ([connections indexOfObjectIdenticalTo: c] == NSNotFound)
|
||
{
|
||
[connections addObject: c];
|
||
}
|
||
}
|
||
/*
|
||
* If neither the new nor the old owner of the pasteboard is the X
|
||
* pasteboard owner corresponding to this pasteboard, we will need
|
||
* to inform the X owner of the change of ownership.
|
||
*/
|
||
if (x == owner)
|
||
x = nil;
|
||
else if (x == [old owner])
|
||
x = nil;
|
||
|
||
current = [PasteboardEntry newWithTypes: types
|
||
owner: owner
|
||
pboard: pb
|
||
ref: nextCount++];
|
||
[history addObject: current];
|
||
RELEASE(current);
|
||
if ([history count] > histLength)
|
||
{
|
||
[history removeObjectAtIndex: 0];
|
||
}
|
||
[old lostOwnership];
|
||
RELEASE(old);
|
||
/*
|
||
* If there is an interested X pasteboard - inform it of the ownership
|
||
* change.
|
||
*/
|
||
if (x != nil)
|
||
[x pasteboardChangedOwner: pb];
|
||
if (verbose)
|
||
{
|
||
NSLog(@"%@ declare types '%@' version %d\n",
|
||
self, types, [current refNum]);
|
||
}
|
||
return [current refNum];
|
||
}
|
||
|
||
- (PasteboardEntry*) entryByCount: (int)count
|
||
{
|
||
if (current == nil)
|
||
{
|
||
return nil;
|
||
}
|
||
else if ([current refNum] == count)
|
||
{
|
||
return current;
|
||
}
|
||
else
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < [history count]; i++)
|
||
{
|
||
if ([[history objectAtIndex: i] refNum] == count)
|
||
{
|
||
return (PasteboardEntry*)[history objectAtIndex: i];
|
||
}
|
||
}
|
||
return nil;
|
||
}
|
||
}
|
||
|
||
- (NSString*) name
|
||
{
|
||
return name;
|
||
}
|
||
|
||
- (void) releaseGlobally
|
||
{
|
||
if ([name isEqual: NSDragPboard]) return;
|
||
if ([name isEqual: NSFindPboard]) return;
|
||
if ([name isEqual: NSFontPboard]) return;
|
||
if ([name isEqual: NSGeneralPboard]) return;
|
||
if ([name isEqual: NSRulerPboard]) return;
|
||
[pasteboards removeObjectForKey: name];
|
||
}
|
||
|
||
- (BOOL) setData: (NSData*)data
|
||
forType: (NSString*)type
|
||
isFile: (BOOL)flag
|
||
oldCount: (int)count
|
||
{
|
||
PasteboardEntry *e;
|
||
|
||
if (verbose)
|
||
{
|
||
NSLog(@"%@ set data for type '%@' version %d\n", self, type, count);
|
||
}
|
||
e = [self entryByCount: count];
|
||
if (e)
|
||
{
|
||
PasteboardData *d;
|
||
|
||
if (flag)
|
||
{
|
||
d = [e itemForType: NSFileContentsPboardType];
|
||
if (d)
|
||
{
|
||
[d setData: data];
|
||
}
|
||
else
|
||
{
|
||
return NO;
|
||
}
|
||
if (type && [type isEqual: NSFileContentsPboardType] == NO)
|
||
{
|
||
d = [e itemForType: type];
|
||
if (d)
|
||
{
|
||
[d setData: data];
|
||
}
|
||
else
|
||
{
|
||
return NO;
|
||
}
|
||
}
|
||
return YES;
|
||
}
|
||
else if (type)
|
||
{
|
||
d = [e itemForType: type];
|
||
if (d)
|
||
{
|
||
[d setData: data];
|
||
return YES;
|
||
}
|
||
else
|
||
{
|
||
return NO;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
return NO;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
return NO;
|
||
}
|
||
}
|
||
|
||
- (void) setHistory: (unsigned)length
|
||
{
|
||
if (length < 1) length = 1;
|
||
if (length > MAXHIST) length = MAXHIST;
|
||
|
||
histLength = length;
|
||
if (length < histLength)
|
||
{
|
||
while ([history count] > histLength)
|
||
{
|
||
[history removeObjectAtIndex: 0];
|
||
}
|
||
}
|
||
}
|
||
|
||
- (NSArray*) typesAndChangeCount: (int*)count
|
||
{
|
||
PasteboardEntry *e = nil;
|
||
|
||
if (*count <= 0)
|
||
{
|
||
e = current;
|
||
}
|
||
else
|
||
{
|
||
e = [self entryByCount: *count];
|
||
}
|
||
if (e)
|
||
{
|
||
*count = [e refNum];
|
||
return [e types];
|
||
}
|
||
return nil;
|
||
}
|
||
|
||
@end
|
||
|
||
|
||
|
||
|
||
|
||
@interface PasteboardServer : NSObject <GSPasteboardSvr>
|
||
{
|
||
NSMutableArray *permenant;
|
||
}
|
||
- (BOOL) connection: (NSConnection*)ancestor
|
||
shouldMakeNewConnection: (NSConnection*)newConn;
|
||
- (id) connectionBecameInvalid: (NSNotification*)notification;
|
||
- (id<GSPasteboardObj>) pasteboardWithName: (NSString*)name;
|
||
@end
|
||
|
||
|
||
|
||
@implementation PasteboardServer
|
||
|
||
- (BOOL) connection: (NSConnection*)ancestor
|
||
shouldMakeNewConnection: (NSConnection*)newConn;
|
||
{
|
||
[[NSNotificationCenter defaultCenter]
|
||
addObserver: self
|
||
selector: @selector(connectionBecameInvalid:)
|
||
name: NSConnectionDidDieNotification
|
||
object: newConn];
|
||
[newConn setDelegate: self];
|
||
return YES;
|
||
}
|
||
|
||
- (id) connectionBecameInvalid: (NSNotification*)notification
|
||
{
|
||
id connection = [notification object];
|
||
|
||
if (connection == conn)
|
||
{
|
||
NSLog(@"Help - pasteboard server connection has died!\n");
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
if ([connection isKindOfClass: [NSConnection class]])
|
||
{
|
||
NSEnumerator *e = [pasteboards objectEnumerator];
|
||
PasteboardObject *o;
|
||
|
||
while ((o = [e nextObject]) != nil)
|
||
{
|
||
[o checkConnection: connection];
|
||
}
|
||
}
|
||
[connections removeObjectIdenticalTo: connection];
|
||
if (auto_stop == YES && [connections count] == 0)
|
||
{
|
||
exit(EXIT_SUCCESS);
|
||
}
|
||
return self;
|
||
}
|
||
|
||
- (void) dealloc
|
||
{
|
||
RELEASE(permenant);
|
||
[super dealloc];
|
||
}
|
||
|
||
- (id) init
|
||
{
|
||
self = [super init];
|
||
if (self)
|
||
{
|
||
/*
|
||
* Tell the NSPasteboard class to use us as the server so that the X
|
||
* pasteboard owners can talk to us directly rather than over D.O.
|
||
*/
|
||
[NSPasteboard _localServer: (id<GSPasteboardSvr>)self];
|
||
|
||
/*
|
||
* Create all the pasteboards which must persist forever and add them
|
||
* to a local array.
|
||
*/
|
||
permenant = [[NSMutableArray alloc] initWithCapacity: 5];
|
||
[permenant addObject: [self pasteboardWithName: NSGeneralPboard]];
|
||
[permenant addObject: [self pasteboardWithName: NSDragPboard]];
|
||
[permenant addObject: [self pasteboardWithName: NSFontPboard]];
|
||
[permenant addObject: [self pasteboardWithName: NSRulerPboard]];
|
||
[permenant addObject: [self pasteboardWithName: NSFindPboard]];
|
||
|
||
/*
|
||
* Ensure that the OS pasteboard system is initialised.
|
||
*/
|
||
#if defined(__WIN32__) || defined(__CYGWIN__)
|
||
xPbClass = NSClassFromString(@"Win32PbOwner");
|
||
#else
|
||
xPbClass = NSClassFromString(@"XPbOwner");
|
||
#endif
|
||
|
||
/*
|
||
If the OS pasteboard system fails to initialize, pretend that it isn't
|
||
there. In practice, this happens if gpbs has been compiled with X
|
||
support but is run on a display-less system. Note that
|
||
+initializePasteboard will already have printed a warning in this case.
|
||
*/
|
||
if (xPbClass && ![xPbClass initializePasteboard])
|
||
xPbClass = nil;
|
||
}
|
||
return self;
|
||
}
|
||
|
||
- (id<GSPasteboardObj>) pasteboardWithName: (NSString*)name
|
||
{
|
||
return [PasteboardObject pasteboardWithName: name];
|
||
}
|
||
|
||
@end
|
||
|
||
|
||
|
||
static void
|
||
ihandler(int sig)
|
||
{
|
||
static BOOL beenHere = NO;
|
||
BOOL action;
|
||
const char *e;
|
||
|
||
/*
|
||
* Prevent recursion.
|
||
*/
|
||
if (beenHere == YES)
|
||
{
|
||
abort();
|
||
}
|
||
beenHere = YES;
|
||
|
||
/*
|
||
* If asked to terminate, do so cleanly.
|
||
*/
|
||
if (sig == SIGTERM)
|
||
{
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
#ifdef DEBUG
|
||
action = YES; // abort() by default.
|
||
#else
|
||
action = NO; // exit() by default.
|
||
#endif
|
||
e = getenv("CRASH_ON_ABORT");
|
||
if (e != 0)
|
||
{
|
||
if (strcasecmp(e, "yes") == 0 || strcasecmp(e, "true") == 0)
|
||
action = YES;
|
||
else if (strcasecmp(e, "no") == 0 || strcasecmp(e, "false") == 0)
|
||
action = NO;
|
||
else if (isdigit(*e) && *e != '0')
|
||
action = YES;
|
||
else
|
||
action = NO;
|
||
}
|
||
|
||
if (action == YES)
|
||
{
|
||
abort();
|
||
}
|
||
else
|
||
{
|
||
fprintf(stderr, "gpbs killed by signal %d\n", sig);
|
||
exit(sig);
|
||
}
|
||
}
|
||
|
||
static void
|
||
init(int argc, char** argv, char **env)
|
||
{
|
||
NSUserDefaults *defs;
|
||
NSProcessInfo *pInfo;
|
||
NSMutableArray *args;
|
||
unsigned count;
|
||
BOOL shouldFork = YES;
|
||
|
||
pInfo = [NSProcessInfo processInfo];
|
||
args = AUTORELEASE([[pInfo arguments] mutableCopy]);
|
||
for (count = 1; count < [args count]; count++)
|
||
{
|
||
NSString *a = [args objectAtIndex: count];
|
||
|
||
if ([a isEqualToString: @"--help"] == YES)
|
||
{
|
||
printf("gpbs\n\n");
|
||
printf("GNU Pasteboard server\n");
|
||
printf("--help\tfor help\n");
|
||
printf("--no-fork\tavoid fork() to make debugging easy\n");
|
||
printf("--verbose\tMore verbose debug output\n");
|
||
exit(EXIT_SUCCESS);
|
||
}
|
||
else if ([a isEqualToString: @"--auto"] == YES)
|
||
{
|
||
auto_stop = YES;
|
||
}
|
||
else if ([a isEqualToString: @"--daemon"] == YES)
|
||
{
|
||
is_daemon = YES;
|
||
shouldFork = NO;
|
||
}
|
||
else if ([a isEqualToString: @"--no-fork"] == YES)
|
||
{
|
||
shouldFork = NO;
|
||
}
|
||
else if ([a isEqualToString: @"--verbose"] == YES)
|
||
{
|
||
verbose++;
|
||
}
|
||
else if ([a hasPrefix: @"-"] == YES)
|
||
{
|
||
count++; // Skip user default specification
|
||
}
|
||
else if ([a length] > 0)
|
||
{
|
||
printf("gpbs - GNU Pasteboard server\n");
|
||
printf("I don't understand '%s'\n", [a cString]);
|
||
printf("--help for help\n");
|
||
exit(EXIT_SUCCESS);
|
||
}
|
||
}
|
||
|
||
for (count = 0; count < NSIG; count++)
|
||
{
|
||
#ifdef SIGPROF
|
||
if (count == SIGPROF) continue;
|
||
#endif
|
||
signal((int)count, ihandler);
|
||
}
|
||
#ifdef SIGPIPE
|
||
signal(SIGPIPE, SIG_IGN);
|
||
#endif
|
||
#ifdef SIGTTOU
|
||
signal(SIGTTOU, SIG_IGN);
|
||
#endif
|
||
#ifdef SIGTTIN
|
||
signal(SIGTTIN, SIG_IGN);
|
||
#endif
|
||
#ifdef SIGHUP
|
||
signal(SIGHUP, SIG_IGN);
|
||
#endif
|
||
signal(SIGTERM, ihandler);
|
||
|
||
if (shouldFork == YES)
|
||
{
|
||
NSFileHandle *null;
|
||
NSTask *t;
|
||
|
||
t = [NSTask new];
|
||
NS_DURING
|
||
{
|
||
[args removeObjectAtIndex: 0];
|
||
[args addObject: @"--daemon"];
|
||
[t setLaunchPath: [[NSBundle mainBundle] executablePath]];
|
||
[t setArguments: args];
|
||
[t setEnvironment: [pInfo environment]];
|
||
null = [NSFileHandle fileHandleWithNullDevice];
|
||
[t setStandardInput: null];
|
||
[t setStandardOutput: null];
|
||
[t setStandardError: null];
|
||
[t launch];
|
||
DESTROY(t);
|
||
}
|
||
NS_HANDLER
|
||
{
|
||
gpbs_log(LOG_CRIT);
|
||
DESTROY(t);
|
||
}
|
||
NS_ENDHANDLER
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
/*
|
||
* Make gpbs logging go to syslog unless overridden by user.
|
||
*/
|
||
defs = [NSUserDefaults standardUserDefaults];
|
||
[defs registerDefaults: [NSDictionary dictionaryWithObjectsAndKeys:
|
||
@"YES", @"GSLogSyslog", nil]];
|
||
}
|
||
|
||
|
||
int
|
||
main(int argc, char** argv, char **env)
|
||
{
|
||
CREATE_AUTORELEASE_POOL(pool);
|
||
NSString *hostname;
|
||
|
||
#ifdef GS_PASS_ARGUMENTS
|
||
[NSProcessInfo initializeWithArguments:argv count:argc environment:env];
|
||
#endif
|
||
|
||
init(argc, argv, env);
|
||
|
||
// [NSObject enableDoubleReleaseCheck: YES];
|
||
|
||
server = [[PasteboardServer alloc] init];
|
||
|
||
if (server == nil)
|
||
{
|
||
NSLog(@"Unable to create server object.\n");
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
/* Register a connection that provides the server object to the network */
|
||
conn = [NSConnection defaultConnection];
|
||
[conn setRootObject: server];
|
||
[conn setDelegate: server];
|
||
[[NSNotificationCenter defaultCenter]
|
||
addObserver: server
|
||
selector: @selector(connectionBecameInvalid:)
|
||
name: NSConnectionDidDieNotification
|
||
object: (id)conn];
|
||
|
||
connections = [NSMutableArray new];
|
||
|
||
hostname = [[NSUserDefaults standardUserDefaults] stringForKey: @"NSHost"];
|
||
if ([hostname length] == 0
|
||
|| [[NSHost hostWithName: hostname] isEqual: [NSHost currentHost]] == YES)
|
||
{
|
||
if ([conn registerName: PBSNAME] == NO)
|
||
{
|
||
NSLog(@"Unable to register with name server.\n");
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
NSHost *host = [NSHost hostWithName: hostname];
|
||
NSPort *port = [conn receivePort];
|
||
NSPortNameServer *ns = [NSPortNameServer systemDefaultPortNameServer];
|
||
NSArray *a;
|
||
unsigned c;
|
||
|
||
if (host == nil)
|
||
{
|
||
NSLog(@"gpbs - unknown NSHost argument ... %@ - quiting.", hostname);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
a = [host names];
|
||
c = [a count];
|
||
while (c-- > 0)
|
||
{
|
||
NSString *name = [a objectAtIndex: c];
|
||
|
||
name = [PBSNAME stringByAppendingFormat: @"-%@", name];
|
||
if ([ns registerPort: port forName: name] == NO)
|
||
{
|
||
}
|
||
}
|
||
a = [host addresses];
|
||
c = [a count];
|
||
while (c-- > 0)
|
||
{
|
||
NSString *name = [a objectAtIndex: c];
|
||
|
||
name = [PBSNAME stringByAppendingFormat: @"-%@", name];
|
||
if ([ns registerPort: port forName: name] == NO)
|
||
{
|
||
}
|
||
}
|
||
}
|
||
|
||
if (verbose)
|
||
{
|
||
NSLog(@"GNU pasteboard server startup.\n");
|
||
}
|
||
|
||
if ([[NSUserDefaults standardUserDefaults]
|
||
stringForKey: @"GSStartupNotification"])
|
||
{
|
||
[[NSDistributedNotificationCenter defaultCenter]
|
||
postNotificationName: [[NSUserDefaults standardUserDefaults]
|
||
stringForKey: @"GSStartupNotification"]
|
||
object: nil];
|
||
}
|
||
|
||
[[NSRunLoop currentRunLoop] run];
|
||
RELEASE(server);
|
||
RELEASE(pool);
|
||
exit(EXIT_SUCCESS);
|
||
}
|
||
|
||
/*
|
||
* The following dummy classe is here solely as a workaround for pre 3.3
|
||
* versions of gcc where protocols didn't work properly unless implemented
|
||
* in the source where the '@protocol()' directive is used.
|
||
*/
|
||
@interface NSPasteboardOwnerDummy : NSObject <GSPasteboardCallback>
|
||
- (void) pasteboard: (NSPasteboard*)pb
|
||
provideDataForType: (NSString*)type;
|
||
- (void) pasteboard: (NSPasteboard*)pb
|
||
provideDataForType: (NSString*)type
|
||
andVersion:(int)v;
|
||
- (void) pasteboardChangedOwner: (NSPasteboard*)pb;
|
||
@end
|
||
|
||
@implementation NSPasteboardOwnerDummy
|
||
- (void) pasteboard: (NSPasteboard*)pb
|
||
provideDataForType: (NSString*)type
|
||
{
|
||
}
|
||
- (void) pasteboard: (NSPasteboard*)pb
|
||
provideDataForType: (NSString*)type
|
||
andVersion:(int)v
|
||
{
|
||
}
|
||
- (void) pasteboardChangedOwner: (NSPasteboard*)pb
|
||
{
|
||
}
|
||
@end
|
||
|