330 lines
12 KiB
Plaintext
330 lines
12 KiB
Plaintext
// This file Copyright © 2009-2022 Transmission authors and contributors.
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// It may be used under the MIT (SPDX: MIT) license.
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// License text can be found in the licenses/ folder.
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#include <libtransmission/transmission.h>
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#include <libtransmission/web-utils.h> //tr_addressIsIP()
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#import "TrackerCell.h"
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#import "TrackerNode.h"
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#define PADDING_HORIZONAL 3.0
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#define PADDING_STATUS_HORIZONAL 3.0
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#define ICON_SIZE 16.0
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#define PADDING_BETWEEN_ICON_AND_NAME 4.0
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#define PADDING_ABOVE_ICON 1.0
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#define PADDING_ABOVE_NAME 1.0
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#define PADDING_BETWEEN_LINES 1.0
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#define PADDING_BETWEEN_LINES_ON_SAME_LINE 4.0
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#define COUNT_WIDTH 40.0
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@interface TrackerCell ()
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@property(nonatomic, readonly) NSImage* favIcon;
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@property(nonatomic, readonly) NSAttributedString* attributedName;
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@property(nonatomic, readonly) NSMutableDictionary* fNameAttributes;
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@property(nonatomic, readonly) NSMutableDictionary* fStatusAttributes;
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- (void)loadTrackerIcon:(NSString*)baseAddress;
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- (NSRect)imageRectForBounds:(NSRect)bounds;
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- (NSRect)rectForNameWithString:(NSAttributedString*)string inBounds:(NSRect)bounds;
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- (NSRect)rectForCountWithString:(NSAttributedString*)string withAboveRect:(NSRect)aboveRect inBounds:(NSRect)bounds;
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- (NSRect)rectForCountLabelWithString:(NSAttributedString*)string withRightRect:(NSRect)rightRect inBounds:(NSRect)bounds;
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- (NSRect)rectForStatusWithString:(NSAttributedString*)string
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withAboveRect:(NSRect)aboveRect
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withRightRect:(NSRect)rightRect
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inBounds:(NSRect)bounds;
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- (NSAttributedString*)attributedStatusWithString:(NSString*)statusString;
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- (NSAttributedString*)attributedCount:(NSInteger)count;
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@end
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@implementation TrackerCell
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//make the favicons accessible to all tracker cells
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NSCache* fTrackerIconCache;
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NSMutableSet* fTrackerIconLoading;
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+ (void)initialize
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{
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fTrackerIconCache = [[NSCache alloc] init];
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fTrackerIconLoading = [[NSMutableSet alloc] init];
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}
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- (instancetype)init
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{
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if ((self = [super init]))
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{
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NSMutableParagraphStyle* paragraphStyle = [NSParagraphStyle.defaultParagraphStyle mutableCopy];
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paragraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;
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_fNameAttributes = [[NSMutableDictionary alloc]
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initWithObjectsAndKeys:[NSFont messageFontOfSize:12.0], NSFontAttributeName, paragraphStyle, NSParagraphStyleAttributeName, nil];
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_fStatusAttributes = [[NSMutableDictionary alloc]
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initWithObjectsAndKeys:[NSFont messageFontOfSize:9.0], NSFontAttributeName, paragraphStyle, NSParagraphStyleAttributeName, nil];
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}
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return self;
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}
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- (id)copyWithZone:(NSZone*)zone
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{
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TrackerCell* copy = [super copyWithZone:zone];
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copy->_fNameAttributes = _fNameAttributes;
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copy->_fStatusAttributes = _fStatusAttributes;
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return copy;
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}
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- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView*)controlView
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{
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//icon
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[self.favIcon drawInRect:[self imageRectForBounds:cellFrame] fromRect:NSZeroRect operation:NSCompositingOperationSourceOver
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fraction:1.0
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respectFlipped:YES
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hints:nil];
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//set table colors
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NSColor *nameColor, *statusColor;
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if (self.backgroundStyle == NSBackgroundStyleEmphasized)
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{
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nameColor = statusColor = NSColor.whiteColor;
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}
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else
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{
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nameColor = NSColor.labelColor;
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statusColor = NSColor.secondaryLabelColor;
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}
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self.fNameAttributes[NSForegroundColorAttributeName] = nameColor;
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self.fStatusAttributes[NSForegroundColorAttributeName] = statusColor;
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TrackerNode* node = (TrackerNode*)self.objectValue;
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//name
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NSAttributedString* nameString = self.attributedName;
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NSRect const nameRect = [self rectForNameWithString:nameString inBounds:cellFrame];
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[nameString drawInRect:nameRect];
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//count strings
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NSAttributedString* seederString = [self attributedCount:node.totalSeeders];
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NSRect const seederRect = [self rectForCountWithString:seederString withAboveRect:nameRect inBounds:cellFrame];
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[seederString drawInRect:seederRect];
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NSAttributedString* leecherString = [self attributedCount:node.totalLeechers];
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NSRect const leecherRect = [self rectForCountWithString:leecherString withAboveRect:seederRect inBounds:cellFrame];
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[leecherString drawInRect:leecherRect];
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NSAttributedString* downloadedString = [self attributedCount:node.totalDownloaded];
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NSRect const downloadedRect = [self rectForCountWithString:downloadedString withAboveRect:leecherRect inBounds:cellFrame];
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[downloadedString drawInRect:downloadedRect];
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//count label strings
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NSString* seederLabelBaseString = [NSLocalizedString(@"Seeders", "tracker peer stat") stringByAppendingFormat:@": "];
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NSAttributedString* seederLabelString = [self attributedStatusWithString:seederLabelBaseString];
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NSRect const seederLabelRect = [self rectForCountLabelWithString:seederLabelString withRightRect:seederRect inBounds:cellFrame];
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[seederLabelString drawInRect:seederLabelRect];
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NSString* leecherLabelBaseString = [NSLocalizedString(@"Leechers", "tracker peer stat") stringByAppendingFormat:@": "];
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NSAttributedString* leecherLabelString = [self attributedStatusWithString:leecherLabelBaseString];
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NSRect const leecherLabelRect = [self rectForCountLabelWithString:leecherLabelString withRightRect:leecherRect
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inBounds:cellFrame];
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[leecherLabelString drawInRect:leecherLabelRect];
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NSString* downloadedLabelBaseString = [NSLocalizedString(@"Downloaded", "tracker peer stat") stringByAppendingFormat:@": "];
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NSAttributedString* downloadedLabelString = [self attributedStatusWithString:downloadedLabelBaseString];
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NSRect const downloadedLabelRect = [self rectForCountLabelWithString:downloadedLabelString withRightRect:downloadedRect
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inBounds:cellFrame];
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[downloadedLabelString drawInRect:downloadedLabelRect];
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//status strings
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NSAttributedString* lastAnnounceString = [self attributedStatusWithString:node.lastAnnounceStatusString];
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NSRect const lastAnnounceRect = [self rectForStatusWithString:lastAnnounceString withAboveRect:nameRect
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withRightRect:seederLabelRect
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inBounds:cellFrame];
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[lastAnnounceString drawInRect:lastAnnounceRect];
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NSAttributedString* nextAnnounceString = [self attributedStatusWithString:node.nextAnnounceStatusString];
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NSRect const nextAnnounceRect = [self rectForStatusWithString:nextAnnounceString withAboveRect:lastAnnounceRect
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withRightRect:leecherLabelRect
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inBounds:cellFrame];
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[nextAnnounceString drawInRect:nextAnnounceRect];
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NSAttributedString* lastScrapeString = [self attributedStatusWithString:node.lastScrapeStatusString];
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NSRect const lastScrapeRect = [self rectForStatusWithString:lastScrapeString withAboveRect:nextAnnounceRect
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withRightRect:downloadedLabelRect
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inBounds:cellFrame];
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[lastScrapeString drawInRect:lastScrapeRect];
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}
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#pragma mark - Private
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- (NSImage*)favIcon
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{
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id icon = nil;
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NSURL* address = [NSURL URLWithString:((TrackerNode*)self.objectValue).fullAnnounceAddress];
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NSString* host;
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if ((host = address.host))
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{
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//don't try to parse ip address
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BOOL const separable = !tr_addressIsIP(host.UTF8String);
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NSArray* hostComponents = separable ? [host componentsSeparatedByString:@"."] : nil;
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//let's try getting the tracker address without using any subdomains
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NSString* baseAddress;
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if (separable && hostComponents.count > 1)
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{
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baseAddress = [NSString stringWithFormat:@"http://%@.%@", hostComponents[hostComponents.count - 2], hostComponents.lastObject];
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}
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else
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{
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baseAddress = [NSString stringWithFormat:@"http://%@", host];
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}
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icon = [fTrackerIconCache objectForKey:baseAddress];
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if (!icon)
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{
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[self loadTrackerIcon:baseAddress];
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}
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}
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if ((icon && icon != [NSNull null]))
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{
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return icon;
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}
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if (@available(macOS 11.0, *))
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{
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NSImage* result = [NSImage imageWithSystemSymbolName:@"globe" accessibilityDescription:nil];
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[result lockFocus];
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[NSColor.textColor set];
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NSRect imageRect = { NSZeroPoint, [result size] };
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NSRectFillUsingOperation(imageRect, NSCompositingOperationSourceIn);
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[result unlockFocus];
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return result;
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}
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return [NSImage imageNamed:@"FavIcon"];
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}
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#warning better favicon detection
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- (void)loadTrackerIcon:(NSString*)baseAddress
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{
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if ([fTrackerIconLoading containsObject:baseAddress])
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{
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return;
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}
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[fTrackerIconLoading addObject:baseAddress];
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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NSImage* icon = nil;
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NSArray<NSString*>* filenamesToTry = @[ @"favicon.png", @"favicon.ico" ];
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for (NSString* filename in filenamesToTry)
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{
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NSURL* favIconUrl = [NSURL URLWithString:[baseAddress stringByAppendingPathComponent:filename]];
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NSURLRequest* request = [NSURLRequest requestWithURL:favIconUrl cachePolicy:NSURLRequestUseProtocolCachePolicy
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timeoutInterval:30.0];
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NSData* iconData = [NSURLConnection sendSynchronousRequest:request returningResponse:NULL error:NULL];
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if (iconData)
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{
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icon = [[NSImage alloc] initWithData:iconData];
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if (icon)
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{
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break;
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}
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}
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}
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dispatch_async(dispatch_get_main_queue(), ^{
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if (icon)
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{
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[fTrackerIconCache setObject:icon forKey:baseAddress];
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[[self controlView] setNeedsDisplay:YES];
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}
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else
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{
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[fTrackerIconCache setObject:[NSNull null] forKey:baseAddress];
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}
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[fTrackerIconLoading removeObject:baseAddress];
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});
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});
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}
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- (NSRect)imageRectForBounds:(NSRect)bounds
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{
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return NSMakeRect(NSMinX(bounds) + PADDING_HORIZONAL, NSMinY(bounds) + PADDING_ABOVE_ICON, ICON_SIZE, ICON_SIZE);
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}
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- (NSRect)rectForNameWithString:(NSAttributedString*)string inBounds:(NSRect)bounds
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{
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NSRect result;
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result.origin.x = NSMinX(bounds) + PADDING_HORIZONAL + ICON_SIZE + PADDING_BETWEEN_ICON_AND_NAME;
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result.origin.y = NSMinY(bounds) + PADDING_ABOVE_NAME;
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result.size.height = [string size].height;
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result.size.width = NSMaxX(bounds) - NSMinX(result) - PADDING_HORIZONAL;
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return result;
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}
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- (NSRect)rectForCountWithString:(NSAttributedString*)string withAboveRect:(NSRect)aboveRect inBounds:(NSRect)bounds
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{
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return NSMakeRect(
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NSMaxX(bounds) - PADDING_HORIZONAL - COUNT_WIDTH,
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NSMaxY(aboveRect) + PADDING_BETWEEN_LINES,
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COUNT_WIDTH,
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[string size].height);
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}
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- (NSRect)rectForCountLabelWithString:(NSAttributedString*)string withRightRect:(NSRect)rightRect inBounds:(NSRect)bounds
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{
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NSRect result = rightRect;
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result.size.width = [string size].width;
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result.origin.x -= NSWidth(result);
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return result;
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}
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- (NSRect)rectForStatusWithString:(NSAttributedString*)string
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withAboveRect:(NSRect)aboveRect
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withRightRect:(NSRect)rightRect
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inBounds:(NSRect)bounds
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{
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NSRect result;
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result.origin.x = NSMinX(bounds) + PADDING_STATUS_HORIZONAL;
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result.origin.y = NSMaxY(aboveRect) + PADDING_BETWEEN_LINES;
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result.size.height = [string size].height;
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result.size.width = NSMinX(rightRect) - PADDING_BETWEEN_LINES_ON_SAME_LINE - NSMinX(result);
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return result;
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}
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- (NSAttributedString*)attributedName
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{
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NSString* name = ((TrackerNode*)self.objectValue).host;
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return [[NSAttributedString alloc] initWithString:name attributes:self.fNameAttributes];
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}
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- (NSAttributedString*)attributedStatusWithString:(NSString*)statusString
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{
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return [[NSAttributedString alloc] initWithString:statusString attributes:self.fStatusAttributes];
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}
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- (NSAttributedString*)attributedCount:(NSInteger)count
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{
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NSString* countString = count != -1 ? [NSString stringWithFormat:@"%ld", count] : NSLocalizedString(@"N/A", "tracker peer stat");
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return [[NSAttributedString alloc] initWithString:countString attributes:self.fStatusAttributes];
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}
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@end
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