2006-06-15 21:34:10 +02:00
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/*
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Copyright (C) 2004 SKYRIX Software AG
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This file is part of OpenGroupware.org.
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OGo is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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OGo is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with OGo; see the file COPYING. If not, write to the
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Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA.
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*/
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2007-07-30 16:10:18 +02:00
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#import <Foundation/NSNull.h>
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#import <NGExtensions/NSObject+Logs.h>
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#import <UI/MailerUI/WOContext+UIxMailer.h>
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#import "UIxMailPartViewer.h"
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#import "UIxMailRenderingContext.h"
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2006-06-15 21:34:10 +02:00
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/*
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UIxMailPartAlternativeViewer
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Display multipart/alternative parts. Most common application is for messages
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which contain text/html and text/plain, but it is also used in other
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contexts, eg in OGo appointment mails.
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TODO: We might want to give the user the possibility to access all parts
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of the alternative set.
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*/
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@interface UIxMailPartAlternativeViewer : UIxMailPartViewer
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{
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2007-10-30 20:31:35 +01:00
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id childInfo;
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2006-06-15 21:34:10 +02:00
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unsigned int childIndex;
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}
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@end
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@implementation UIxMailPartAlternativeViewer
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2008-09-10 22:35:28 +02:00
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- (void) dealloc
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{
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2007-10-30 18:24:59 +01:00
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[childInfo release];
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2006-06-15 21:34:10 +02:00
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[super dealloc];
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}
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/* caches */
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2008-09-10 22:35:28 +02:00
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- (void) resetBodyInfoCaches
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{
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2007-10-30 20:31:35 +01:00
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[childInfo release]; childInfo = nil;
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2007-10-30 18:24:59 +01:00
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childIndex = 0;
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2006-06-15 21:34:10 +02:00
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[super resetBodyInfoCaches];
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}
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/* part selection */
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2008-09-10 22:35:28 +02:00
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- (NSArray *) childPartTypes
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{
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2006-06-15 21:34:10 +02:00
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NSMutableArray *types;
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2007-10-30 20:31:35 +01:00
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unsigned i, count;
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NSArray *childParts;
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2006-06-15 21:34:10 +02:00
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2007-10-30 20:31:35 +01:00
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childParts = [[self bodyInfo] valueForKey:@"parts"];
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count = [childParts count];
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types = [NSMutableArray arrayWithCapacity:count];
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for (i = 0; i < count; i++) {
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NSString *mt, *st;
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mt = [[[childParts objectAtIndex:i] valueForKey:@"type"] lowercaseString];
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st = [[[childParts objectAtIndex:i] valueForKey:@"subtype"]
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lowercaseString];
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mt = [[mt stringByAppendingString:@"/"] stringByAppendingString:st];
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[types addObject:mt ? mt : (id)[NSNull null]];
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}
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2006-06-15 21:34:10 +02:00
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return types;
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}
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2008-09-10 22:35:28 +02:00
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- (unsigned int) _preferredTypesPart: (NSArray *) types
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{
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unsigned int count, max;
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unsigned int part;
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const NSString *priorities[] = { @"multipart/related", @"multipart/mixed",
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@"text/calendar", @"text/html",
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@"text/plain" };
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part = NSNotFound;
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max = sizeof (priorities) / sizeof (NSString *);
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for (count = 0; count < max; count++)
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{
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part = [types indexOfObject: priorities[count]];
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if (part != NSNotFound)
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break;
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}
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return part;
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}
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2007-10-30 20:31:35 +01:00
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2008-09-10 22:35:28 +02:00
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- (int) _selectPartIndexFromTypes: (NSArray *) _types
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{
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/* returns the index of the selected part or NSNotFound */
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unsigned count, max, part;
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part = [self _preferredTypesPart: _types];
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if (part == NSNotFound)
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{
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max = [_types count];
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/* then we scan for other text types and choose the first one found */
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for (count = 0; count < max; count++)
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if ([[_types objectAtIndex: count] hasPrefix:@"text/"])
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{
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part = count;
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break;
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}
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}
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if (part == NSNotFound)
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part = 0; /* as a fallback, we select the first available part */
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return part;
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2006-06-15 21:34:10 +02:00
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}
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2008-09-10 22:35:28 +02:00
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- (void) selectChildInfo
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{
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2007-10-30 20:31:35 +01:00
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unsigned idx;
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2008-09-10 22:35:28 +02:00
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2007-10-30 20:31:35 +01:00
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[childInfo release]; childInfo = nil;
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2007-10-30 18:24:59 +01:00
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childIndex = 0;
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2006-06-15 21:34:10 +02:00
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2008-09-10 22:35:28 +02:00
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idx = [self _selectPartIndexFromTypes: [self childPartTypes]];
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if (idx == NSNotFound)
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{
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[self errorWithFormat:@"could not select a part of types: %@",
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2007-10-30 20:31:35 +01:00
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[self childPartTypes]];
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2008-09-10 22:35:28 +02:00
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return;
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}
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2007-10-30 20:31:35 +01:00
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childIndex = idx + 1;
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childInfo =
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[[[[self bodyInfo] valueForKey:@"parts"] objectAtIndex:idx] retain];
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2006-06-15 21:34:10 +02:00
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}
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/* accessors */
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2008-09-10 22:35:28 +02:00
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- (id) childInfo
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{
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if (!childInfo)
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2006-06-15 21:34:10 +02:00
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[self selectChildInfo];
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2007-10-30 18:24:59 +01:00
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return childInfo;
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2006-06-15 21:34:10 +02:00
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}
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2008-09-10 22:35:28 +02:00
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- (unsigned int) childIndex
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{
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if (!childIndex)
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2006-06-15 21:34:10 +02:00
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[self selectChildInfo];
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2007-10-30 20:31:35 +01:00
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2007-10-30 18:24:59 +01:00
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return childIndex - 1;
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2006-06-15 21:34:10 +02:00
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}
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2008-09-10 22:35:28 +02:00
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- (NSString *) childPartName
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{
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2008-09-11 17:12:57 +02:00
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char buf[8];
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2008-09-10 22:35:28 +02:00
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sprintf (buf, "%d", [self childIndex] + 1);
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2007-10-30 20:31:35 +01:00
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return [NSString stringWithCString:buf];
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2006-06-15 21:34:10 +02:00
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}
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2008-09-10 22:35:28 +02:00
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- (id) childPartPath
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{
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2006-06-15 21:34:10 +02:00
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NSArray *pp;
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pp = [self partPath];
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return [pp count] > 0
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2007-10-30 20:31:35 +01:00
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? [pp arrayByAddingObject:[self childPartName]]
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: [NSArray arrayWithObject:[self childPartName]];
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2006-06-15 21:34:10 +02:00
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}
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/* nested viewers */
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2008-09-10 22:35:28 +02:00
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- (id) contentViewerComponent
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{
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2006-06-15 21:34:10 +02:00
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id info;
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info = [self childInfo];
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2007-10-30 20:31:35 +01:00
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return [[[self context] mailRenderingContext] viewerForBodyInfo:info];
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2006-06-15 21:34:10 +02:00
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}
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@end /* UIxMailPartAlternativeViewer */
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