Source/CBActionSupportPlugin.m

   1 /*
   2  * Adium is the legal property of its developers, whose names are listed in the copyright file included
   3  * with this source distribution.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the License,
   7  * or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
  10  * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
  11  * Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  15  */
  16
  17 #import <Adium/AIContentControllerProtocol.h>
  18 #import "CBActionSupportPlugin.h"
  19
  20 /*!
  21  * @class CBActionSupportPlugin
  22  * @brief Simple content filter to turn "/me blah" into "<span class='actionMessageUserName'>Name of contact </span><span class="actionMessageBody">blah</span>"
  23  */
  24 @implementation CBActionSupportPlugin
  25
  26 /*!
  27  * @brief Install
  28  */
  29 - (void)installPlugin
  30 {
  31         [[adium contentController] registerContentFilter:self ofType:AIFilterMessageDisplay direction:AIFilterOutgoing];
  32         [[adium contentController] registerContentFilter:self ofType:AIFilterMessageDisplay direction:AIFilterIncoming];
  33 }
  34
  35 - (void)uninstallPlugin
  36 {
  37         [[adium contentController] unregisterContentFilter:self];
  38 }
  39
  40 #pragma mark -
  41
  42 /*!
  43  * @brief Filter
  44  */
  45 - (NSAttributedString *)filterAttributedString:(NSAttributedString *)inAttributedString context:(id)context
  46 {
  47         NSMutableAttributedString   *ourMessage = nil;
  48
  49         if (inAttributedString &&
  50                 [inAttributedString length] &&
  51                 [[inAttributedString string] rangeOfString:@"/me"
  52                                                                                    options:NSLiteralSearch
  53                                                                                          range:NSMakeRange(0, [inAttributedString length])].location != NSNotFound) {
  54                 NSMutableString *str;
  55                 NSString                *startReplacement = @"%actionMessage%", *endReplacement = @"%/actionMessage%";
  56                 NSRange                 extent;
  57                 unsigned                replacementLength;
  58
  59                 ourMessage = [[inAttributedString mutableCopyWithZone:[inAttributedString zone]] autorelease];
  60                 str = [ourMessage mutableString];
  61
  62         //      startReplacement = [startReplacement stringByAppendingString:[[[[[adium interfaceController] activeChat] account] displayName] stringByAppendingString:@" "]];
  63         //      endReplacement = @"";
  64
  65                 replacementLength = [startReplacement length] + [endReplacement length];
  66
  67                 extent = NSMakeRange(0, [str length]);
  68                 do { //while (extent.length)
  69                         NSRange lineRange, searchRange, meRange;
  70                         signed shift = 0;
  71                         unsigned endInsertPoint;
  72
  73                         lineRange = NSMakeRange(extent.location, 1);
  74                         endInsertPoint = 0;
  75                         [str getLineStart:&lineRange.location
  76                                       end:&lineRange.length
  77                               contentsEnd:&endInsertPoint
  78                                  forRange:lineRange];
  79                         lineRange.length -= lineRange.location;
  80
  81                         searchRange = NSMakeRange(lineRange.location, endInsertPoint - lineRange.location);
  82                         meRange = [str rangeOfString:@"/me " options:(NSLiteralSearch | NSCaseInsensitiveSearch) range:searchRange];
  83
  84                         if (meRange.location == lineRange.location && meRange.length == 4) {
  85                                 NSAttributedString *endSplat = [[NSAttributedString alloc] initWithString:endReplacement
  86                                                                                                                                                         attributes:[ourMessage attributesAtIndex:endInsertPoint-1
  87                                                                                                                                                                                                           effectiveRange:nil]];
  88                                 [ourMessage insertAttributedString:endSplat atIndex:endInsertPoint];
  89                                 [endSplat release];
  90
  91                                 [ourMessage replaceCharactersInRange:meRange withString:startReplacement];
  92
  93                                 shift = meRange.length - replacementLength;
  94                         }
  95
  96                         shift += lineRange.length;
  97                         if (shift > extent.length) shift = extent.length;
  98                         extent.location += shift;
  99                         extent.length   -= shift;
 100                 } while (extent.length);
 101         }
 102
 103         return (ourMessage ? ourMessage : inAttributedString);
 104 }
 105
 106 /*!
 107  * @brief Filter priority
 108  */
 109 - (float)filterPriority
 110 {
 111         return DEFAULT_FILTER_PRIORITY;
 112 }
 113
 114 @end