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transmission/macosx/InfoTrackersViewController.mm

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// This file Copyright © 2010-2023 Transmission authors and contributors.
// It may be used under the MIT (SPDX: MIT) license.
// License text can be found in the licenses/ folder.
#import "InfoTrackersViewController.h"
#import "Torrent.h"
#import "TrackerCell.h"
#import "TrackerNode.h"
#import "TrackerTableView.h"
static CGFloat const kTrackerGroupSeparatorHeight = 14.0;
typedef NS_ENUM(NSInteger, TrackerSegmentTag) {
TrackerSegmentTagAdd = 0,
TrackerSegmentTagRemove = 1,
};
@interface InfoTrackersViewController ()
@property(nonatomic, copy) NSArray<Torrent*>* fTorrents;
@property(nonatomic) BOOL fSet;
@property(nonatomic) NSMutableArray* fTrackers;
@property(nonatomic) IBOutlet TrackerTableView* fTrackerTable;
@property(nonatomic, readonly) TrackerCell* fTrackerCell;
@property(nonatomic) IBOutlet NSSegmentedControl* fTrackerAddRemoveControl;
@end
@implementation InfoTrackersViewController
- (instancetype)init
{
if ((self = [super initWithNibName:@"InfoTrackersView" bundle:nil]))
{
self.title = NSLocalizedString(@"Trackers", "Inspector view -> title");
_fTrackerCell = [[TrackerCell alloc] init];
}
return self;
}
- (void)awakeFromNib
{
[self.fTrackerAddRemoveControl.cell setToolTip:NSLocalizedString(@"Add a tracker", "Inspector view -> tracker buttons")
forSegment:TrackerSegmentTagAdd];
[self.fTrackerAddRemoveControl.cell setToolTip:NSLocalizedString(@"Remove selected trackers", "Inspector view -> tracker buttons")
forSegment:TrackerSegmentTagRemove];
CGFloat const height = [NSUserDefaults.standardUserDefaults floatForKey:@"InspectorContentHeightTracker"];
if (height != 0.0)
{
NSRect viewRect = self.view.frame;
viewRect.size.height = height;
self.view.frame = viewRect;
}
}
- (void)setInfoForTorrents:(NSArray<Torrent*>*)torrents
{
//don't check if it's the same in case the metadata changed
self.fTorrents = torrents;
self.fSet = NO;
}
- (void)updateInfo
{
if (!self.fSet)
{
[self setupInfo];
}
if (self.fTorrents.count == 0)
{
return;
}
//get updated tracker stats
if (self.fTrackerTable.editedRow == -1)
{
NSArray* oldTrackers = self.fTrackers;
if (self.fTorrents.count == 1)
{
self.fTrackers = self.fTorrents[0].allTrackerStats;
}
else
{
self.fTrackers = [[NSMutableArray alloc] init];
for (Torrent* torrent in self.fTorrents)
{
[self.fTrackers addObjectsFromArray:torrent.allTrackerStats];
}
}
self.fTrackerTable.trackers = self.fTrackers;
if (oldTrackers && [self.fTrackers isEqualToArray:oldTrackers])
{
self.fTrackerTable.needsDisplay = YES;
}
else
{
[self.fTrackerTable reloadData];
}
}
else
{
NSAssert1(self.fTorrents.count == 1, @"Attempting to add tracker with %ld transfers selected", self.fTorrents.count);
NSIndexSet* addedIndexes = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(self.fTrackers.count - 2, 2)];
NSArray* tierAndTrackerBeingAdded = [self.fTrackers objectsAtIndexes:addedIndexes];
self.fTrackers = self.fTorrents[0].allTrackerStats;
[self.fTrackers addObjectsFromArray:tierAndTrackerBeingAdded];
self.fTrackerTable.trackers = self.fTrackers;
NSIndexSet *updateIndexes = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, self.fTrackers.count - 2)],
*columnIndexes = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, self.fTrackerTable.tableColumns.count)];
[self.fTrackerTable reloadDataForRowIndexes:updateIndexes columnIndexes:columnIndexes];
}
}
- (void)saveViewSize
{
[NSUserDefaults.standardUserDefaults setFloat:NSHeight(self.view.frame) forKey:@"InspectorContentHeightTracker"];
}
- (void)clearView
{
self.fTrackers = nil;
}
- (NSInteger)numberOfRowsInTableView:(NSTableView*)tableView
{
return self.fTrackers ? self.fTrackers.count : 0;
}
- (id)tableView:(NSTableView*)tableView objectValueForTableColumn:(NSTableColumn*)column row:(NSInteger)row
{
id item = self.fTrackers[row];
if ([item isKindOfClass:[NSDictionary class]])
{
NSInteger const tier = [item[@"Tier"] integerValue];
NSString* tierString = tier == -1 ?
NSLocalizedString(@"New Tier", "Inspector -> tracker table") :
[NSString stringWithFormat:NSLocalizedString(@"Tier %ld", "Inspector -> tracker table"), tier];
if (self.fTorrents.count > 1)
{
tierString = [tierString stringByAppendingFormat:@" - %@", item[@"Name"]];
}
return tierString;
}
else
{
return item; //TrackerNode or NSString
}
}
- (NSCell*)tableView:(NSTableView*)tableView dataCellForTableColumn:(NSTableColumn*)tableColumn row:(NSInteger)row
{
BOOL const tracker = [self.fTrackers[row] isKindOfClass:[TrackerNode class]];
return tracker ? self.fTrackerCell : [tableColumn dataCellForRow:row];
}
- (CGFloat)tableView:(NSTableView*)tableView heightOfRow:(NSInteger)row
{
//check for NSDictionary instead of TrackerNode because of display issue when adding a row
if ([self.fTrackers[row] isKindOfClass:[NSDictionary class]])
{
return kTrackerGroupSeparatorHeight;
}
else
{
return tableView.rowHeight;
}
}
- (BOOL)tableView:(NSTableView*)tableView shouldEditTableColumn:(NSTableColumn*)tableColumn row:(NSInteger)row
{
//don't allow tier row to be edited by double-click
return NO;
}
- (void)tableViewSelectionDidChange:(NSNotification*)notification
{
[self.fTrackerAddRemoveControl setEnabled:self.fTrackerTable.numberOfSelectedRows > 0 forSegment:TrackerSegmentTagRemove];
}
- (BOOL)tableView:(NSTableView*)tableView isGroupRow:(NSInteger)row
{
return NO;
}
- (BOOL)tableView:(NSTableView*)tableView shouldSelectRow:(NSInteger)row
{
id node = self.fTrackers[row];
if ([node isKindOfClass:[TrackerNode class]])
{
return YES;
}
return NO;
}
- (NSString*)tableView:(NSTableView*)tableView
toolTipForCell:(NSCell*)cell
rect:(NSRectPointer)rect
tableColumn:(NSTableColumn*)column
row:(NSInteger)row
mouseLocation:(NSPoint)mouseLocation
{
id node = self.fTrackers[row];
if ([node isKindOfClass:[TrackerNode class]])
{
return ((TrackerNode*)node).fullAnnounceAddress;
}
else
{
return nil;
}
}
- (void)tableView:(NSTableView*)tableView
setObjectValue:(id)object
forTableColumn:(NSTableColumn*)tableColumn
row:(NSInteger)row
{
Torrent* torrent = self.fTorrents[0];
BOOL added = NO;
for (NSString* tracker in [object componentsSeparatedByString:@"\n"])
{
if ([torrent addTrackerToNewTier:tracker])
{
added = YES;
}
}
if (!added)
{
NSBeep();
}
//reset table with either new or old value
self.fTrackers = torrent.allTrackerStats;
self.fTrackerTable.trackers = self.fTrackers;
[self.fTrackerTable reloadData];
[self.fTrackerTable deselectAll:self];
[NSNotificationCenter.defaultCenter postNotificationName:@"UpdateUI" object:nil]; //in case sort by tracker
}
- (void)addRemoveTracker:(id)sender
{
//don't allow add/remove when currently adding - it leads to weird results
if (self.fTrackerTable.editedRow != -1)
{
return;
}
[self updateInfo];
if ([[sender cell] tagForSegment:[sender selectedSegment]] == TrackerSegmentTagRemove)
{
[self removeTrackers];
}
else
{
[self addTrackers];
}
}
#pragma mark - Private
- (void)setupInfo
{
NSUInteger const numberSelected = self.fTorrents.count;
if (numberSelected != 1)
{
if (numberSelected == 0)
{
self.fTrackers = nil;
self.fTrackerTable.trackers = nil;
[self.fTrackerTable reloadData];
}
self.fTrackerTable.torrent = nil;
[self.fTrackerAddRemoveControl setEnabled:NO forSegment:TrackerSegmentTagAdd];
[self.fTrackerAddRemoveControl setEnabled:NO forSegment:TrackerSegmentTagRemove];
}
else
{
self.fTrackerTable.torrent = self.fTorrents[0];
[self.fTrackerAddRemoveControl setEnabled:YES forSegment:TrackerSegmentTagAdd];
[self.fTrackerAddRemoveControl setEnabled:NO forSegment:TrackerSegmentTagRemove];
}
[self.fTrackerTable deselectAll:self];
self.fSet = YES;
}
#warning doesn't like blank addresses
- (void)addTrackers
{
[self.view.window makeKeyWindow];
NSAssert1(self.fTorrents.count == 1, @"Attempting to add tracker with %ld transfers selected", self.fTorrents.count);
[self.fTrackers addObject:@{ @"Tier" : @-1 }];
[self.fTrackers addObject:@""];
self.fTrackerTable.trackers = self.fTrackers;
[self.fTrackerTable reloadData];
[self.fTrackerTable selectRowIndexes:[NSIndexSet indexSetWithIndex:self.fTrackers.count - 1] byExtendingSelection:NO];
[self.fTrackerTable editColumn:[self.fTrackerTable columnWithIdentifier:@"Tracker"] row:self.fTrackers.count - 1
withEvent:nil
select:YES];
}
- (void)removeTrackers
{
NSMutableDictionary* removeIdentifiers = [NSMutableDictionary dictionaryWithCapacity:self.fTorrents.count];
NSUInteger removeTrackerCount = 0;
NSIndexSet* selectedIndexes = self.fTrackerTable.selectedRowIndexes;
BOOL groupSelected = NO;
NSUInteger groupRowIndex = NSNotFound;
NSMutableIndexSet* removeIndexes = [NSMutableIndexSet indexSet];
for (NSUInteger i = 0; i < self.fTrackers.count; ++i)
{
id object = self.fTrackers[i];
if ([object isKindOfClass:[TrackerNode class]])
{
TrackerNode* node = (TrackerNode*)object;
if (groupSelected || [selectedIndexes containsIndex:i])
{
Torrent* torrent = node.torrent;
NSMutableSet* removeSet;
if (!(removeSet = removeIdentifiers[torrent]))
{
removeSet = [NSMutableSet set];
removeIdentifiers[torrent] = removeSet;
}
[removeSet addObject:node.fullAnnounceAddress];
++removeTrackerCount;
[removeIndexes addIndex:i];
}
else
{
groupRowIndex = NSNotFound; //don't remove the group row
}
}
else
{
//mark the previous group row for removal, if necessary
if (groupRowIndex != NSNotFound)
{
[removeIndexes addIndex:groupRowIndex];
}
groupSelected = [selectedIndexes containsIndex:i];
if (!groupSelected && i > selectedIndexes.lastIndex)
{
groupRowIndex = NSNotFound;
break;
}
groupRowIndex = i;
}
}
//mark the last group for removal, too
if (groupRowIndex != NSNotFound)
{
[removeIndexes addIndex:groupRowIndex];
}
NSAssert2(
removeTrackerCount <= removeIndexes.count,
@"Marked %ld trackers to remove, but only removing %ld rows",
removeTrackerCount,
removeIndexes.count);
//we might have no trackers if remove right after a failed add (race condition ftw)
#warning look into having a failed add apply right away, so that this can become an assert
if (removeTrackerCount == 0)
{
return;
}
if ([NSUserDefaults.standardUserDefaults boolForKey:@"WarningRemoveTrackers"])
{
NSAlert* alert = [[NSAlert alloc] init];
if (removeTrackerCount > 1)
{
alert.messageText = [NSString
localizedStringWithFormat:NSLocalizedString(@"Are you sure you want to remove %lu trackers?", "Remove trackers alert -> title"),
removeTrackerCount];
alert.informativeText = NSLocalizedString(
@"Once removed, Transmission will no longer attempt to contact them."
" This cannot be undone.",
"Remove trackers alert -> message");
}
else
{
alert.messageText = NSLocalizedString(@"Are you sure you want to remove this tracker?", "Remove trackers alert -> title");
alert.informativeText = NSLocalizedString(
@"Once removed, Transmission will no longer attempt to contact it."
" This cannot be undone.",
"Remove trackers alert -> message");
}
[alert addButtonWithTitle:NSLocalizedString(@"Remove", "Remove trackers alert -> button")];
[alert addButtonWithTitle:NSLocalizedString(@"Cancel", "Remove trackers alert -> button")];
alert.showsSuppressionButton = YES;
NSInteger result = [alert runModal];
if (alert.suppressionButton.state == NSControlStateValueOn)
{
[NSUserDefaults.standardUserDefaults setBool:NO forKey:@"WarningRemoveTrackers"];
}
if (result != NSAlertFirstButtonReturn)
{
return;
}
}
[self.fTrackerTable beginUpdates];
for (Torrent* torrent in removeIdentifiers)
{
[torrent removeTrackers:removeIdentifiers[torrent]];
}
//reset table with either new or old value
self.fTrackers = [[NSMutableArray alloc] init];
for (Torrent* torrent in self.fTorrents)
{
[self.fTrackers addObjectsFromArray:torrent.allTrackerStats];
}
[self.fTrackerTable removeRowsAtIndexes:removeIndexes withAnimation:NSTableViewAnimationSlideLeft];
self.fTrackerTable.trackers = self.fTrackers;
[self.fTrackerTable endUpdates];
[NSNotificationCenter.defaultCenter postNotificationName:@"UpdateUI" object:nil]; //in case sort by tracker
}
@end