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+//
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+// AutoSaveManager.m
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+// PDF Reader Pro Edition
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+//
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+// Created by Niehaoyu on 2023/08/10.
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+//
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+
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+#import "AutoSaveManager.h"
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+
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+@interface AutoSaveManager ()
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+
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+@property (nonatomic, strong) NSMutableDictionary *infoDict;
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+
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+@property (nonatomic, strong, readwrite) NSMutableArray *originalPaths;//保存的原文件信息
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+
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+@property (nonatomic, strong, readwrite) NSMutableArray *autoSavePaths;
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+
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+@property (nonatomic, copy, readwrite) NSString *autoSaveFolder;
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+
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+@end
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+
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+@implementation AutoSaveManager
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+
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++ (AutoSaveManager *)manager {
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+ static AutoSaveManager *__manager = nil;
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+ if (!__manager) {
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+ __manager = [[super allocWithZone:NULL] init];
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+ }
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+ return __manager;
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+}
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+
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++ (instancetype)allocWithZone:(struct _NSZone *)zone {
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+ return AutoSaveManager.manager;
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+}
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+
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+- (id)init {
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+ self = [super init];
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+ if (self) {
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+
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+ self.autoSaveEnabled = [[NSUserDefaults standardUserDefaults] boolForKey:@"ComAutoSaveKey"];
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+
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+ if ([[NSUserDefaults standardUserDefaults] floatForKey:@"AutoSaveTimeIntervalKey"]) {
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+ self.timeInterval = [[NSUserDefaults standardUserDefaults] floatForKey:@"AutoSaveTimeIntervalKey"];
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+ } else {
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+ self.timeInterval = 15;
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+ }
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+
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+ [self loadData];
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+
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+ self.autoSaveDidEndAction = YES;
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+
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+ }
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+ return self;
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+}
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+
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+- (void)loadData {
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+
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+ NSString *cachesPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject];
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+
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+ if ([[NSFileManager defaultManager] fileExistsAtPath:[cachesPath stringByAppendingPathComponent:[NSBundle mainBundle].bundleIdentifier]]) {
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+ cachesPath = [cachesPath stringByAppendingPathComponent:[NSBundle mainBundle].bundleIdentifier];
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+ }
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+ cachesPath = [cachesPath stringByAppendingPathComponent:@"autoSaveFolder"];
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+ if (![[NSFileManager defaultManager] fileExistsAtPath:cachesPath]) {
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+ [[NSFileManager defaultManager] createDirectoryAtPath:cachesPath withIntermediateDirectories:YES attributes:nil error:nil];
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+ }
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+ self.autoSaveFolder = cachesPath;
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+
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+#if DEBUG
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+ NSLog(@"autoSaveFolder===%@",cachesPath);
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+#endif
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+
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+ NSString *plistPath = [NSString stringWithFormat:@"%@/autoSaveInfo.plist",self.autoSaveFolder];
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+ NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithContentsOfFile:plistPath];
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+ if (dict.allKeys.count == 0) {
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+ return;
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+ }
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+
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+ self.infoDict = dict;
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+
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+ if (!self.autoSavePaths) {
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+ self.autoSavePaths = [[NSMutableArray alloc] init];
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+ }
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+
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+ if (!self.originalPaths) {
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+ self.originalPaths = [[NSMutableArray alloc] init];
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+ }
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+ [self.originalPaths addObjectsFromArray:dict.allKeys];
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+
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+ self.opendPaths = [[NSMutableArray alloc] init];
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+
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+ NSArray *arr = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:self.autoSaveFolder error:nil];
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+ for (NSString *fileName in arr) {
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+ NSString *savedKey = [self.autoSaveFolder stringByAppendingPathComponent:fileName];
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+ if ([dict.allValues containsObject:savedKey]) {
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+ [self.autoSavePaths addObject:savedKey];
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+ }else {
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+ if ([fileName isEqualToString:@"autoSaveInfo.plist"]) {
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+
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+ } else {
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+ [[NSFileManager defaultManager] removeItemAtPath:savedKey error:nil];
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+ }
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+ }
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+ }
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+}
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+
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+#pragma mark - Setter
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+- (void)setAutoSaveEnabled:(BOOL)autoSaveEnabled {
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+ _autoSaveEnabled = autoSaveEnabled;
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+
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+ [[NSUserDefaults standardUserDefaults] setBool:_autoSaveEnabled forKey:@"ComAutoSaveKey"];
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+ [[NSUserDefaults standardUserDefaults] synchronize];
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+}
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+
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+- (void)setTimeInterval:(CGFloat)timeInterval {
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+ _timeInterval = timeInterval;
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+
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+ [[NSUserDefaults standardUserDefaults] setFloat:_timeInterval forKey:@"AutoSaveTimeIntervalKey"];
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+ [[NSUserDefaults standardUserDefaults] synchronize];
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+}
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+
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+- (NSString *)URLEncodedString:(NSString *)string {
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+ CFStringRef stringRef = CFBridgingRetain(string);
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+#pragma clang diagnostic push
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+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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+ CFStringRef encoded = CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
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+ stringRef,
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+ NULL,
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+ CFSTR("!*'\"();:@&=+$,/?%#[]% "),
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+ kCFStringEncodingUTF8);
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+#pragma clang diagnostic pop
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+ CFRelease(stringRef);
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+ return CFBridgingRelease(encoded);
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+}
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+
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+- (NSString *)getValidFilePath:(NSString *)oldPath {
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+ NSFileManager *fileManager = [NSFileManager defaultManager];
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+ NSDictionary *fileDic = [fileManager attributesOfItemAtPath:oldPath error:nil];
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+ NSString *fileType = [fileDic objectForKey:NSFileType];
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+ int i =1;
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+ NSString *newPath = oldPath;
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+ while ([fileManager fileExistsAtPath:newPath]) {
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+ if ([fileType isEqualToString:NSFileTypeDirectory]) {
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+ newPath = [oldPath stringByAppendingFormat:@"(%d)",i];
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+ } else {
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+ NSString *fileExtension = [oldPath pathExtension];
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+ newPath = [[oldPath stringByDeletingPathExtension] stringByAppendingFormat:@"(%d).%@",i,fileExtension];
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+ }
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+ i++;
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+ }
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+ return newPath;
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+}
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+
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+#pragma mark - Public Method
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+- (void)clearCache {
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+ if ([[NSFileManager defaultManager] fileExistsAtPath:self.autoSaveFolder]) {
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+ [[NSFileManager defaultManager] removeItemAtPath:self.autoSaveFolder error:nil];
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+ }
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+ if (![[NSFileManager defaultManager] fileExistsAtPath:self.autoSaveFolder]) {
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+ [[NSFileManager defaultManager] createDirectoryAtPath:self.autoSaveFolder withIntermediateDirectories:YES attributes:nil error:nil];
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+ }
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+}
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+
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+- (NSString *)autoSaveWithPath:(NSString *)filePath {
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+
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+ NSString *autoSaveFolder = self.autoSaveFolder;
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+
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+ NSString *plistPath = [NSString stringWithFormat:@"%@/autoSaveInfo.plist",autoSaveFolder];
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+ NSString *savePath = [NSString stringWithFormat:@"%@/%@_%@.%@",autoSaveFolder,filePath.lastPathComponent.stringByDeletingPathExtension,@"recovered",filePath.pathExtension];
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+
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+ if ([[NSFileManager defaultManager] fileExistsAtPath:plistPath]) {
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+ NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithContentsOfFile:plistPath];
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+ if ([dict.allKeys containsObject:filePath]) {
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+ savePath = [dict valueForKey:filePath];
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+ }
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+ if (savePath.length > 0 && filePath.length > 0) {
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+ if ([dict.allValues containsObject:savePath]) {
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+ //不同路径下同名文件的保存覆盖的情况处理
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+ NSArray *values = [[NSArray alloc] initWithArray:dict.allValues];
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+
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+ for (NSString *key in dict.allKeys) {
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+ NSString *value = [dict objectForKey:key];
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+ if ([savePath isEqualToString:value] &&
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+ ![key isEqualToString:filePath]) {
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+ int count = 1;
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+ savePath = [NSString stringWithFormat:@"%@/%@_%@(%d).%@",autoSaveFolder,filePath.lastPathComponent.stringByDeletingPathExtension,@"recovered",count,filePath.pathExtension];
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+ while ([values containsObject:savePath]) {
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+ count ++;
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+ savePath = [NSString stringWithFormat:@"%@/%@_%@(%d).%@",autoSaveFolder,filePath.lastPathComponent.stringByDeletingPathExtension,@"recovered",count,filePath.pathExtension];
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+ }
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+ }
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+ }
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+ }
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+ [dict setValue:savePath forKey:filePath];
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+ }
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+ [dict writeToURL:[NSURL fileURLWithPath:plistPath] error:nil];
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+ } else {
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+ NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
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+ if (savePath.length > 0 && filePath.length > 0) {
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+ [dict setValue:savePath forKey:filePath];
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+ }
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+ [dict writeToURL:[NSURL fileURLWithPath:plistPath] error:nil];
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+
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+ }
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+ return savePath;
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+}
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+
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+- (void)removeAutoSavePath:(NSString *)filePath {
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+
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+ NSString *autoSaveFolder = self.autoSaveFolder;
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+
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+ NSString *plistPath = [NSString stringWithFormat:@"%@/autoSaveInfo.plist",autoSaveFolder];
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+ if ([[NSFileManager defaultManager] fileExistsAtPath:plistPath]) {
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+ NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithContentsOfFile:plistPath];
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+ if ([dict valueForKey:filePath]) {
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+ NSString *savePath = [dict valueForKey:filePath];
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+ if ([[NSFileManager defaultManager] fileExistsAtPath:savePath]) {
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+ [[NSFileManager defaultManager] removeItemAtPath:savePath error:nil];
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+ }
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+ [dict removeObjectForKey:filePath];
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+ }
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+
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+ if (dict.allKeys.count > 0) {
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+ [dict writeToURL:[NSURL fileURLWithPath:plistPath] error:nil];
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+ } else {
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+ [[NSFileManager defaultManager] removeItemAtPath:plistPath error:nil];
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+ }
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+ }
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+
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+}
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+
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+@end
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