VLCLibrarySearchDisplayDataSource.m 9.6 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285
/*****************************************************************************
 * VLCLibrarySearchDisplayDataSource.m
 * VLC for iOS
 *****************************************************************************
 * Copyright (c) 2017 VideoLAN. All rights reserved.
 * $Id$
 *
 * Authors: Carola Nitz <nitz.carola # gmail.com>
 *
 * Refer to the COPYING file of the official project for license.
 *****************************************************************************/

#import "VLCLibrarySearchDisplayDataSource.h"
#import "VLCPlaylistTableViewCell.h"

static NSString *PlaylistCellIdentifier = @"PlaylistCell";

@interface VLCLibrarySearchDisplayDataSource() <UITableViewDataSource>
{
    NSMutableArray *_searchData;
}
@end

@implementation VLCLibrarySearchDisplayDataSource

- (instancetype)init
{
    self = [super init];
    if (self) {
        _searchData = [NSMutableArray new];
    }
    return self;
}

- (NSString *)cellIdentifier
{
    return PlaylistCellIdentifier;
}

- (UINib *)nibclass
{
    return [UINib nibWithNibName:@"VLCPlaylistTableViewCell" bundle:nil];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    @synchronized (_searchData) {
        return _searchData.count;
    }
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    VLCPlaylistTableViewCell *cell = (VLCPlaylistTableViewCell *)[tableView dequeueReusableCellWithIdentifier:PlaylistCellIdentifier forIndexPath:indexPath];

    [cell collapsWithAnimation:NO];

    NSInteger row = indexPath.row;

    @synchronized (_searchData) {
        if (row < _searchData.count)
            cell.mediaObject = _searchData[row];
    }

    return cell;
}

- (NSManagedObject *)objectAtIndex:(NSUInteger)index
{
    @synchronized (_searchData) {
        return index < _searchData.count ? _searchData[index] : nil;
    }
}

- (void)removeAllObjects
{
    @synchronized (_searchData) {
        [_searchData removeAllObjects];
    }
}

- (void)addObject:(NSManagedObject *)object
{
    @synchronized (_searchData) {
        [_searchData addObject:object];
    }
}

- (void)shouldReloadTableForSearchString:(NSString *)searchString searchableFiles:(NSArray *)files
{
    [self removeAllObjects];
    NSRange nameRange;

    for (NSManagedObject *item in files) {

        if ([item isKindOfClass:[MLAlbum class]]) {
            nameRange = [self _searchAlbum:(MLAlbum *)item forString:searchString];
        } else if ([item isKindOfClass:[MLAlbumTrack class]]) {
            nameRange = [self _searchAlbumTrack:(MLAlbumTrack *)item forString:searchString];
        } else if ([item isKindOfClass:[MLShowEpisode class]]) {
            nameRange = [self _searchShowEpisode:(MLShowEpisode *)item forString:searchString];
        } else if ([item isKindOfClass:[MLShow class]]) {
            nameRange = [self _searchShow:(MLShow *)item forString:searchString];
        } else if ([item isKindOfClass:[MLLabel class]])
            nameRange = [self _searchLabel:(MLLabel *)item forString:searchString];
        else // simple file
            nameRange = [self _searchFile:(MLFile*)item forString:searchString];

        if (nameRange.location != NSNotFound)
            [self addObject:item];
    }
}

- (NSRange)_searchAlbumTrack:(MLAlbumTrack *)albumTrack forString:(NSString *)searchString
{
    NSString *trackTitle = albumTrack.title;
    NSRange nameRange = [trackTitle rangeOfString:searchString options:NSCaseInsensitiveSearch];
    if (nameRange.location != NSNotFound)
        return nameRange;

    NSMutableArray *stringsToSearch = [[NSMutableArray alloc] initWithObjects:trackTitle, nil];
    if ([albumTrack artist])
        [stringsToSearch addObject:[albumTrack artist]];
    if ([albumTrack genre])
        [stringsToSearch addObject:[albumTrack genre]];

    NSArray *substrings = [searchString componentsSeparatedByString:@" "];
    NSUInteger substringCount = substrings.count;
    NSUInteger searchStringCount = stringsToSearch.count;

    for (NSUInteger x = 0; x < substringCount; x++) {
        for (NSUInteger y = 0; y < searchStringCount; y++) {
            nameRange = [stringsToSearch[y] rangeOfString:substrings[x] options:NSCaseInsensitiveSearch];
            if (nameRange.location != NSNotFound)
                break;
        }
        if (nameRange.location != NSNotFound)
            break;
    }
    return nameRange;
}

- (NSRange)_searchAlbum:(MLAlbum *)album forString:(NSString *)searchString
{
    NSString *albumName = [album name];
    NSRange nameRange = [albumName rangeOfString:searchString options:NSCaseInsensitiveSearch];
    if (nameRange.location != NSNotFound)
        return nameRange;

    if ([album releaseYear]) {
        nameRange = [[album releaseYear] rangeOfString:searchString options:NSCaseInsensitiveSearch];
        if (nameRange.location != NSNotFound)
            return nameRange;
    }

    /* split search string into substrings and try again */
    NSArray *substrings = [searchString componentsSeparatedByString:@" "];
    NSUInteger substringCount = substrings.count;
    if (substringCount > 1) {
        for (NSUInteger x = 0; x < substringCount; x++) {
            nameRange = [searchString rangeOfString:substrings[x] options:NSCaseInsensitiveSearch];
            if (nameRange.location != NSNotFound)
                break;
        }
    }

    if (nameRange.location != NSNotFound)
        return nameRange;

    /* search our tracks if we can't find what the user is looking for */
    NSArray *tracks = [album sortedTracks];
    NSUInteger trackCount = tracks.count;
    for (NSUInteger x = 0; x < trackCount; x++) {
        nameRange = [self _searchAlbumTrack:tracks[x] forString:searchString];
        if (nameRange.location != NSNotFound)
            break;
    }
    return nameRange;
}

- (NSRange)_searchShowEpisode:(MLShowEpisode *)episode forString:(NSString *)searchString
{
    /* basic search first, then try more complex things */
    NSString *episodeName = [episode name];
    NSRange nameRange;

    if (episodeName) {
        nameRange = [episodeName rangeOfString:searchString options:NSCaseInsensitiveSearch];
        if (nameRange.location != NSNotFound)
            return nameRange;
    }

    /* split search string into substrings and try again */
    NSArray *substrings = [searchString componentsSeparatedByString:@" "];
    NSUInteger substringCount = substrings.count;
    if (substringCount > 1) {
        for (NSUInteger x = 0; x < substringCount; x++) {
            nameRange = [searchString rangeOfString:substrings[x] options:NSCaseInsensitiveSearch];
            if (nameRange.location != NSNotFound)
                break;
        }
    }

    return nameRange;
}

- (NSRange)_searchShow:(MLShow *)mediaShow forString:(NSString *)searchString
{
    /* basic search first, then try more complex things */
    NSRange nameRange = [[mediaShow name] rangeOfString:searchString options:NSCaseInsensitiveSearch];

    if (nameRange.location != NSNotFound)
        return nameRange;

    /* split search string into substrings and try again */
    NSArray *substrings = [searchString componentsSeparatedByString:@" "];
    NSUInteger substringCount = substrings.count;
    if (substringCount > 1) {
        for (NSUInteger x = 0; x < substringCount; x++) {
            nameRange = [searchString rangeOfString:substrings[x] options:NSCaseInsensitiveSearch];
            if (nameRange.location != NSNotFound)
                break;
        }
    }
    if (nameRange.location != NSNotFound)
        return nameRange;

    /* user didn't search for our show name, let's do a deeper search on the episodes */
    NSArray *episodes = [mediaShow sortedEpisodes];
    NSUInteger episodeCount = episodes.count;
    for (NSUInteger x = 0; x < episodeCount; x++)
        nameRange = [self _searchShowEpisode:episodes[x] forString:searchString];

    return nameRange;
}

- (NSRange)_searchLabel:(MLLabel *)mediaLabel forString:(NSString *)searchString
{
    /* basic search first, then try more complex things */
    NSRange nameRange = [[mediaLabel name] rangeOfString:searchString options:NSCaseInsensitiveSearch];

    if (nameRange.location != NSNotFound)
        return nameRange;

    /* user didn't search for our label name, let's do a deeper search */
    NSArray *files = [mediaLabel sortedFolderItems];
    NSUInteger fileCount = files.count;
    for (NSUInteger x = 0; x < fileCount; x++) {
        nameRange = [self _searchFile:files[x] forString:searchString];
        if (nameRange.location != NSNotFound)
            break;
    }
    return nameRange;
}

- (NSRange)_searchFile:(MLFile *)mediaFile forString:(NSString *)searchString
{
    /* basic search first, then try more complex things */
    NSRange nameRange = [[mediaFile title] rangeOfString:searchString options:NSCaseInsensitiveSearch];
    if (nameRange.location != NSNotFound)
        return nameRange;

    NSMutableArray *stringsToSearch = [[NSMutableArray alloc] initWithObjects:[mediaFile title], nil];
    if ([mediaFile artist])
        [stringsToSearch addObject:[mediaFile artist]];
    if ([mediaFile releaseYear])
        [stringsToSearch addObject:[mediaFile releaseYear]];

    NSArray *substrings = [searchString componentsSeparatedByString:@" "];
    NSUInteger substringCount = substrings.count;
    NSUInteger searchStringCount = stringsToSearch.count;

    for (NSUInteger x = 0; x < substringCount; x++) {
        for (NSUInteger y = 0; y < searchStringCount; y++) {
            nameRange = [stringsToSearch[y] rangeOfString:substrings[x] options:NSCaseInsensitiveSearch];
            if (nameRange.location != NSNotFound)
                break;
        }
        if (nameRange.location != NSNotFound)
            break;
    }

    return nameRange;
}
@end