mDNSMacOSX/DomainBrowser/macOS/CNDomainBrowserView.m - mDNSResponder - Git at Google

 /*
  *
  * Copyright (c) 2016, 2021 Apple Inc. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #import "CNDomainBrowserView.h"
 #import "_CNDomainBrowser.h"
 #import "CNDomainBrowserPathUtils.h"

 #define BROWSER_CELL_SPACING                4
 #define BROWSER_ARROW_WIDTH                 8
 #define INITIAL_LEGACYBROWSE                1

 @implementation NSBrowser(PathArray)

 - (NSArray *)pathArrayToColumn:(NSInteger)column includeSelectedRow:(BOOL)includeSelection
 {
 	NSMutableArray * pathArray = [NSMutableArray array];
 	if (!includeSelection) column--;
 	for (NSInteger c = 0 ; c <= column ; c++)
 	{
 		NSBrowserCell *cell = [self selectedCellInColumn: c];
 		if (cell) [pathArray addObject: [cell stringValue]];
 	}

 	return(pathArray);
 }

 @end

 @interface CNDomainBrowserView ()

 @property (strong) _CNDomainBrowser *      bonjour;

 @property (strong) NSTableView	*			instanceTable;
 @property (strong) NSArrayController *		instanceC;
 @property (strong) NSTableColumn *			instanceNameColumn;
 @property (strong) NSTableColumn *			instanceServiceTypeColumn;
 @property (strong) NSTableColumn *			instancePathPopupColumn;

 @property (strong) NSBrowser *				browser;
 #if INITIAL_LEGACYBROWSE
 @property (assign) BOOL                     initialPathSet;
 #endif

 @end

 @implementation CNDomainBrowserView

 - (instancetype)initWithFrame:(NSRect)frameRect
 {
 	if (self = [super initWithFrame: frameRect])
 	{
 		[self commonInit];
 	}
 	return(self);
 }

 - (nullable instancetype)initWithCoder:(NSCoder *)coder
 {
 	if (self = [super initWithCoder: coder])
 	{
 		[self commonInit];
 	}
 	return(self);
 }

 - (void)awakeFromNib
 {
     [super awakeFromNib];

     self.bonjour = [[_CNDomainBrowser alloc] initWithDelegate:(id<_CNDomainBrowserDelegate>)self];
     _bonjour.browseRegistration = _browseRegistration;
     _bonjour.ignoreLocal = _ignoreLocal;
     _bonjour.ignoreBTMM = _ignoreBTMM;
 }


 - (void)contentViewsInit
 {
 	NSRect	frame = self.frame;
 	self.instanceC = [[NSArrayController alloc] init];

 	//	Bottom browser
     frame.origin.x = frame.origin.y = 0;
 	NSBrowser * browserView = [[NSBrowser alloc] initWithFrame: frame];
 	browserView.delegate = (id<NSBrowserDelegate>)self;
 	browserView.action = @selector(clickAction:);
 	browserView.titled = NO;
 	browserView.separatesColumns = NO;
 	browserView.allowsEmptySelection = YES;
 	browserView.allowsMultipleSelection = NO;
 	browserView.takesTitleFromPreviousColumn = NO;
 	browserView.hasHorizontalScroller = YES;
 	browserView.columnResizingType = NSBrowserNoColumnResizing;
 	browserView.minColumnWidth = 50;
     browserView.translatesAutoresizingMaskIntoConstraints = NO;
 	self.browser = browserView;

     [self addSubview: browserView];

     [self addConstraint:
      [NSLayoutConstraint constraintWithItem:_browser
                                   attribute:NSLayoutAttributeLeft
                                   relatedBy:NSLayoutRelationEqual
                                      toItem:self
                                   attribute:NSLayoutAttributeLeft
                                  multiplier:1
                                    constant:0]];
     [self addConstraint:
      [NSLayoutConstraint constraintWithItem:_browser
                                   attribute:NSLayoutAttributeRight
                                   relatedBy:NSLayoutRelationEqual
                                      toItem:self
                                   attribute:NSLayoutAttributeRight
                                  multiplier:1
                                    constant:0]];
     [self addConstraint:
      [NSLayoutConstraint constraintWithItem:_browser
                                   attribute:NSLayoutAttributeBottom
                                   relatedBy:NSLayoutRelationEqual
                                      toItem:self
                                   attribute:NSLayoutAttributeBottom
                                  multiplier:1
                                    constant:0]];
     [self addConstraint:
      [NSLayoutConstraint constraintWithItem:_browser
                                   attribute:NSLayoutAttributeTop
                                   relatedBy:NSLayoutRelationEqual
                                      toItem:self
                                   attribute:NSLayoutAttributeTop
                                  multiplier:1
                                    constant:0]];
 }

 - (void)commonInit
 {
 	[self contentViewsInit];
 }

 - (void)viewWillMoveToSuperview:(NSView *)newSuperview
 {
     [super viewWillMoveToSuperview: newSuperview];
     if (newSuperview && !_bonjour)
     {
         [self awakeFromNib];
     }
 }

 - (void)setDomainSelectionToPathArray:(NSArray *)pathArray
 {
 	NSInteger column = 0;
 	for (NSString * nextPathComponent in pathArray)
 	{
 		NSArray * subPath = [self.browser pathArrayToColumn: column includeSelectedRow: NO];
 		NSArray * rowArray = [[self.bonjour subDomainsAtDomainPath: subPath] sortedArrayUsingComparator: ^(id obj1, id obj2) {
 			return (NSComparisonResult)[ obj1[_CNSubDomainKey_subPath] compare: obj2[_CNSubDomainKey_subPath]];
 		}];
 		NSInteger nextRow = [rowArray indexOfObjectPassingTest: ^BOOL(id obj, NSUInteger index, BOOL *stop) {
 			(void)index;
 			(void)stop;
 			return [obj[_CNSubDomainKey_subPath] isEqualToString: nextPathComponent];
 		}];
 		[self.browser selectRow: nextRow inColumn: column++];
 	}
 }

 - (NSInteger)maxNumberOfVisibleSubDomainRows
 {
 	NSInteger  result = 0;

 	for (NSInteger i = self.browser.firstVisibleColumn ; i <= self.browser.lastVisibleColumn ; i++)
 	{
 		NSInteger rows = [self browser: self.browser numberOfRowsInColumn: i];
 		result = MAX(rows, result);
 	}

 	return(result);
 }

 #pragma mark - Public Methods

 - (void)setIgnoreLocal:(BOOL)ignoreLocal
 {
     _ignoreLocal = ignoreLocal;
     self.bonjour.ignoreLocal = _ignoreLocal;
 }

 - (void)setBrowseRegistration:(BOOL)browseRegistration
 {
     _browseRegistration = browseRegistration;
     self.bonjour.browseRegistration = _browseRegistration;
 }

 - (NSString *)selectedDNSDomain
 {
     NSArray * pathArray = [self.browser pathArrayToColumn: self.browser.selectedColumn includeSelectedRow: YES];
     return(DomainPathToDNSDomain(pathArray));
 }

 - (NSString *)defaultDNSDomain
 {
     return(DomainPathToDNSDomain(self.bonjour.defaultDomainPath));
 }

 - (NSArray *)flattenedDNSDomains
 {
     return(self.bonjour.flattenedDNSDomains);
 }


 - (void)startBrowse
 {
     [self.bonjour startBrowser];
 }

 - (void)stopBrowse
 {
     [self.bonjour stopBrowser];
     _initialPathSet = NO;
 }

 - (BOOL)isBrowsing
 {
     return(self.bonjour.isBrowsing);
 }

 - (CGFloat)minimumHeight
 {
     return self.selectedDNSDomain.length ? [self.browser frameOfRow: [self.browser selectedRowInColumn: self.browser.lastVisibleColumn] inColumn: self.browser.lastVisibleColumn].size.height : 0.0;
 }

 - (void)showSelectedRow
 {
     for( NSInteger i = self.browser.firstVisibleColumn ; i <= self.browser.lastVisibleColumn ; i++ )
     {
         NSInteger selRow = [self.browser selectedRowInColumn: i];
         if( selRow != NSNotFound ) [self.browser scrollRowToVisible: selRow inColumn: i];
     }
 }

 - (BOOL)foundInstanceInMoreThanLocalDomain
 {
     return( [_bonjour foundInstanceInMoreThanLocalDomain] );
 }


 #pragma mark - Notifications

 - (void)browser:(NSBrowser *)sender selectionDidChange:(NSArray *)pathArray
 {
     if (_delegate && [_delegate respondsToSelector: @selector(domainBrowserDomainSelected:)] &&
         sender == self.browser)
     {
         [_delegate domainBrowserDomainSelected: pathArray ? DomainPathToDNSDomain(pathArray) : nil];
     }
 }

 #pragma mark - NSBrowserDelegate

 - (NSInteger)browser:(NSBrowser *)sender numberOfRowsInColumn:(NSInteger)column
 {
 	return ([self.bonjour subDomainsAtDomainPath: [sender pathArrayToColumn: column includeSelectedRow: NO]].count);
 }

 - (void)browser:(NSBrowser *)sender willDisplayCell:(id)cell atRow:(NSUInteger)row column:(NSInteger)column
 {
 	//	Get the name
 	NSMutableArray * pathArray = [NSMutableArray arrayWithArray: [sender pathArrayToColumn: column includeSelectedRow: NO]];
 	NSArray * rowArray = [[self.bonjour subDomainsAtDomainPath: pathArray] sortedArrayUsingComparator: ^(id obj1, id obj2) {
 		return (NSComparisonResult)[ obj1[_CNSubDomainKey_subPath] compare: obj2[_CNSubDomainKey_subPath]];
 	}];
 	if (row < rowArray.count)
 	{
 		NSDictionary *	item = [rowArray objectAtIndex: row];
 		NSString *val = item[_CNSubDomainKey_subPath];
 		[cell setStringValue: val];

 		//	See if it's a leaf
 		[pathArray addObject: val];
 		((NSBrowserCell*)cell).leaf = (![self.bonjour subDomainsAtDomainPath: pathArray].count);

 		//	Make Default domain bold
 		if ([item[_CNSubDomainKey_defaultFlag] boolValue])	((NSBrowserCell*)cell).font = [NSFont boldSystemFontOfSize: [NSFont systemFontSizeForControlSize: sender.controlSize]];
 		else                                                ((NSBrowserCell*)cell).font = [NSFont controlContentFontOfSize: [NSFont systemFontSizeForControlSize: sender.controlSize]];
 	}
 }

 - (CGFloat)browser:(NSBrowser *)sender shouldSizeColumn:(NSInteger)column forUserResize:(BOOL)forUserResize toWidth:(CGFloat)suggestedWidth
 {
 	(void)forUserResize;
 	CGFloat newSize = 0;

 	NSArray * pathArray = [NSArray arrayWithArray: [sender pathArrayToColumn: column includeSelectedRow: NO]];
 	NSArray * rowArray = [[self.bonjour subDomainsAtDomainPath: pathArray] sortedArrayUsingComparator: ^(id obj1, id obj2) {
 		return (NSComparisonResult)[ obj1[_CNSubDomainKey_subPath] compare: obj2[_CNSubDomainKey_subPath]];
 	}];

 	for (NSDictionary * next in rowArray)
 	{
 		NSFont * font = [next[_CNSubDomainKey_defaultFlag] boolValue] ?
 						[NSFont boldSystemFontOfSize: [NSFont systemFontSizeForControlSize: sender.controlSize]]:
 						[NSFont controlContentFontOfSize: [NSFont systemFontSizeForControlSize: sender.controlSize]];
         NSArray * itemArray = [pathArray arrayByAddingObjectsFromArray: [NSArray arrayWithObject: next[_CNSubDomainKey_subPath]]];
         NSBrowserCell * cell = [[NSBrowserCell alloc] initTextCell: next[_CNSubDomainKey_subPath]];
         cell.font = font;
         cell.leaf = ([self.bonjour subDomainsAtDomainPath: itemArray].count == 0);
 		newSize = MAX(newSize, cell.cellSize.width + BROWSER_CELL_SPACING);
 		if (!cell.leaf) newSize += BROWSER_ARROW_WIDTH;
 	}

 	if (!newSize) newSize = suggestedWidth;

 	return(newSize);
 }

 #pragma mark - _CNDomainBrowser Delegates

 - (void)bonjourBrowserDomainUpdate:(NSArray *)defaultDomainPath
 {
 	(void)defaultDomainPath;
     [self.browser loadColumnZero];
 #if INITIAL_LEGACYBROWSE
     if( !_initialPathSet )
     {
         _initialPathSet = YES;
         [_delegate domainBrowserDomainUpdate: [NSString string]];
     }
     else
 #endif
     {
         [self setDomainSelectionToPathArray: self.bonjour.defaultDomainPath];
         if (_delegate && [_delegate respondsToSelector: @selector(domainBrowserDomainUpdate:)])
         {
             [_delegate domainBrowserDomainUpdate: defaultDomainPath ? DomainPathToDNSDomain(defaultDomainPath) : [NSString string]];
         }
     }
 }

 #pragma mark - Commands

 - (IBAction)clickAction:(id)sender
 {
 	(void)sender;
 	NSArray * pathArray = [self.browser pathArrayToColumn: self.browser.selectedColumn includeSelectedRow: YES];
     if (!pathArray.count && (([NSEvent modifierFlags] & NSEventModifierFlagOption ) != NSEventModifierFlagOption)) pathArray = self.bonjour.defaultDomainPath;
     [self setDomainSelectionToPathArray: pathArray];
     [self browser: self.browser selectionDidChange: pathArray];
 }

 @end

 @interface CNBonjourDomainCell()

 @property(strong)   NSMutableArray *   browserCells;

 @end

 @implementation CNBonjourDomainCell

 - (instancetype)init
 {
 	self = [super init];
 	if (self)
 	{
 		self.browserCells = [NSMutableArray array];
 	}
 	return self;
 }

 - (instancetype)initWithCoder:(NSCoder *)coder
 {
     self = [super initWithCoder:coder];
     if (self)
     {
         self.browserCells = [NSMutableArray array];
     }
     return self;
 }

 - (id)copyWithZone:(NSZone *)zone
 {
     CNBonjourDomainCell *cell = [super copyWithZone: zone];
     if (cell)
     {
         cell.browserCells = [NSMutableArray arrayWithArray: self.browserCells];
     }
     return cell;
 }

 - (void) setObjectValue:(id)objectValue
 {
     [super setObjectValue: objectValue];

     [self.browserCells removeAllObjects];
     if ([objectValue isKindOfClass: [NSString class]])
     {
         NSUInteger  count = 0;
         NSArray * subPaths = DNSDomainToDomainPath(objectValue);
         for (NSString * nextPath in subPaths)
         {
             NSBrowserCell * nextCell = [[NSBrowserCell alloc] initTextCell: nextPath];
             nextCell.leaf = (++count == subPaths.count);
             [self.browserCells addObject: nextCell];
         }
     }
 }

 - (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
 {
     CGFloat    usedWidth = BROWSER_CELL_SPACING / 2;
     for (NSBrowserCell * nextCell in self.browserCells)
     {
         NSRect nextRect = cellFrame;
         nextRect.size.width = cellFrame.size.width - usedWidth;
         nextRect.origin.x += usedWidth;

         NSSize  cellSize = [nextCell cellSizeForBounds: nextRect];
 		CGFloat yOffset = (nextRect.size.height - cellSize.height) / 2;
         nextRect.size.width = cellSize.width;
         nextRect.size.height = cellSize.height;
 		nextRect.origin.y += yOffset;

         [nextCell drawInteriorWithFrame: nextRect
                                  inView: controlView];
         usedWidth += nextRect.size.width + BROWSER_CELL_SPACING;
     }
 }

 @end

 @interface CNBonjourDomainView()

 @property(strong)   CNBonjourDomainCell *	cell;

 @end

 @implementation CNBonjourDomainView

 - (instancetype)initWithFrame:(NSRect)frameRect
 {
 	self = [super initWithFrame:frameRect];
 	if (self)
 	{
 		self.cell = [[CNBonjourDomainCell alloc] init];
 	}
 	return self;
 }

 - (instancetype)initWithCoder:(NSCoder *)coder
 {
 	self = [super initWithCoder:coder];
 	if (self)
 	{
 		self.cell = [[CNBonjourDomainCell alloc] init];
 	}
 	return self;
 }

 - (void) setDomain:(NSString *)domain
 {
     if (![domain isEqualToString: self.cell.stringValue])
     {
         self.cell.stringValue = domain;
         self.needsDisplay = YES;
     }
 }

 - (NSString *)domain
 {
 	return self.cell.stringValue;
 }

 - (void) drawRect:(NSRect)dirtyRect
 {
 	(void)dirtyRect;	// Unused
 	[self.cell drawInteriorWithFrame: self.bounds inView: self];
 }

 @end
	/*
	*
	* Copyright (c) 2016, 2021 Apple Inc. All rights reserved.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* https://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#import "CNDomainBrowserView.h"
	#import "_CNDomainBrowser.h"
	#import "CNDomainBrowserPathUtils.h"

	#define BROWSER_CELL_SPACING 4
	#define BROWSER_ARROW_WIDTH 8
	#define INITIAL_LEGACYBROWSE 1

	@implementation NSBrowser(PathArray)

	- (NSArray *)pathArrayToColumn:(NSInteger)column includeSelectedRow:(BOOL)includeSelection
	{
	NSMutableArray * pathArray = [NSMutableArray array];
	if (!includeSelection) column--;
	for (NSInteger c = 0 ; c <= column ; c++)
	{
	NSBrowserCell *cell = [self selectedCellInColumn: c];
	if (cell) [pathArray addObject: [cell stringValue]];
	}

	return(pathArray);
	}

	@end

	@interface CNDomainBrowserView ()

	@property (strong) _CNDomainBrowser * bonjour;

	@property (strong) NSTableView * instanceTable;
	@property (strong) NSArrayController * instanceC;
	@property (strong) NSTableColumn * instanceNameColumn;
	@property (strong) NSTableColumn * instanceServiceTypeColumn;
	@property (strong) NSTableColumn * instancePathPopupColumn;

	@property (strong) NSBrowser * browser;
	#if INITIAL_LEGACYBROWSE
	@property (assign) BOOL initialPathSet;
	#endif

	@end

	@implementation CNDomainBrowserView

	- (instancetype)initWithFrame:(NSRect)frameRect
	{
	if (self = [super initWithFrame: frameRect])
	{
	[self commonInit];
	}
	return(self);
	}

	- (nullable instancetype)initWithCoder:(NSCoder *)coder
	{
	if (self = [super initWithCoder: coder])
	{
	[self commonInit];
	}
	return(self);
	}

	- (void)awakeFromNib
	{
	[super awakeFromNib];

	self.bonjour = [[_CNDomainBrowser alloc] initWithDelegate:(id<_CNDomainBrowserDelegate>)self];
	_bonjour.browseRegistration = _browseRegistration;
	_bonjour.ignoreLocal = _ignoreLocal;
	_bonjour.ignoreBTMM = _ignoreBTMM;
	}


	- (void)contentViewsInit
	{
	NSRect frame = self.frame;
	self.instanceC = [[NSArrayController alloc] init];

	// Bottom browser
	frame.origin.x = frame.origin.y = 0;
	NSBrowser * browserView = [[NSBrowser alloc] initWithFrame: frame];
	browserView.delegate = (id<NSBrowserDelegate>)self;
	browserView.action = @selector(clickAction:);
	browserView.titled = NO;
	browserView.separatesColumns = NO;
	browserView.allowsEmptySelection = YES;
	browserView.allowsMultipleSelection = NO;
	browserView.takesTitleFromPreviousColumn = NO;
	browserView.hasHorizontalScroller = YES;
	browserView.columnResizingType = NSBrowserNoColumnResizing;
	browserView.minColumnWidth = 50;
	browserView.translatesAutoresizingMaskIntoConstraints = NO;
	self.browser = browserView;

	[self addSubview: browserView];

	[self addConstraint:
	[NSLayoutConstraint constraintWithItem:_browser
	attribute:NSLayoutAttributeLeft
	relatedBy:NSLayoutRelationEqual
	toItem:self
	attribute:NSLayoutAttributeLeft
	multiplier:1
	constant:0]];
	[self addConstraint:
	[NSLayoutConstraint constraintWithItem:_browser
	attribute:NSLayoutAttributeRight
	relatedBy:NSLayoutRelationEqual
	toItem:self
	attribute:NSLayoutAttributeRight
	multiplier:1
	constant:0]];
	[self addConstraint:
	[NSLayoutConstraint constraintWithItem:_browser
	attribute:NSLayoutAttributeBottom
	relatedBy:NSLayoutRelationEqual
	toItem:self
	attribute:NSLayoutAttributeBottom
	multiplier:1
	constant:0]];
	[self addConstraint:
	[NSLayoutConstraint constraintWithItem:_browser
	attribute:NSLayoutAttributeTop
	relatedBy:NSLayoutRelationEqual
	toItem:self
	attribute:NSLayoutAttributeTop
	multiplier:1
	constant:0]];
	}

	- (void)commonInit
	{
	[self contentViewsInit];
	}

	- (void)viewWillMoveToSuperview:(NSView *)newSuperview
	{
	[super viewWillMoveToSuperview: newSuperview];
	if (newSuperview && !_bonjour)
	{
	[self awakeFromNib];
	}
	}

	- (void)setDomainSelectionToPathArray:(NSArray *)pathArray
	{
	NSInteger column = 0;
	for (NSString * nextPathComponent in pathArray)
	{
	NSArray * subPath = [self.browser pathArrayToColumn: column includeSelectedRow: NO];
	NSArray * rowArray = [[self.bonjour subDomainsAtDomainPath: subPath] sortedArrayUsingComparator: ^(id obj1, id obj2) {
	return (NSComparisonResult)[ obj1[_CNSubDomainKey_subPath] compare: obj2[_CNSubDomainKey_subPath]];
	}];
	NSInteger nextRow = [rowArray indexOfObjectPassingTest: ^BOOL(id obj, NSUInteger index, BOOL *stop) {
	(void)index;
	(void)stop;
	return [obj[_CNSubDomainKey_subPath] isEqualToString: nextPathComponent];
	}];
	[self.browser selectRow: nextRow inColumn: column++];
	}
	}

	- (NSInteger)maxNumberOfVisibleSubDomainRows
	{
	NSInteger result = 0;

	for (NSInteger i = self.browser.firstVisibleColumn ; i <= self.browser.lastVisibleColumn ; i++)
	{
	NSInteger rows = [self browser: self.browser numberOfRowsInColumn: i];
	result = MAX(rows, result);
	}

	return(result);
	}

	#pragma mark - Public Methods

	- (void)setIgnoreLocal:(BOOL)ignoreLocal
	{
	_ignoreLocal = ignoreLocal;
	self.bonjour.ignoreLocal = _ignoreLocal;
	}

	- (void)setBrowseRegistration:(BOOL)browseRegistration
	{
	_browseRegistration = browseRegistration;
	self.bonjour.browseRegistration = _browseRegistration;
	}

	- (NSString *)selectedDNSDomain
	{
	NSArray * pathArray = [self.browser pathArrayToColumn: self.browser.selectedColumn includeSelectedRow: YES];
	return(DomainPathToDNSDomain(pathArray));
	}

	- (NSString *)defaultDNSDomain
	{
	return(DomainPathToDNSDomain(self.bonjour.defaultDomainPath));
	}

	- (NSArray *)flattenedDNSDomains
	{
	return(self.bonjour.flattenedDNSDomains);
	}


	- (void)startBrowse
	{
	[self.bonjour startBrowser];
	}

	- (void)stopBrowse
	{
	[self.bonjour stopBrowser];
	_initialPathSet = NO;
	}

	- (BOOL)isBrowsing
	{
	return(self.bonjour.isBrowsing);
	}

	- (CGFloat)minimumHeight
	{
	return self.selectedDNSDomain.length ? [self.browser frameOfRow: [self.browser selectedRowInColumn: self.browser.lastVisibleColumn] inColumn: self.browser.lastVisibleColumn].size.height : 0.0;
	}

	- (void)showSelectedRow
	{
	for( NSInteger i = self.browser.firstVisibleColumn ; i <= self.browser.lastVisibleColumn ; i++ )
	{
	NSInteger selRow = [self.browser selectedRowInColumn: i];
	if( selRow != NSNotFound ) [self.browser scrollRowToVisible: selRow inColumn: i];
	}
	}

	- (BOOL)foundInstanceInMoreThanLocalDomain
	{
	return( [_bonjour foundInstanceInMoreThanLocalDomain] );
	}


	#pragma mark - Notifications

	- (void)browser:(NSBrowser )sender selectionDidChange:(NSArray )pathArray
	{
	if (_delegate && [_delegate respondsToSelector: @selector(domainBrowserDomainSelected:)] &&
	sender == self.browser)
	{
	[_delegate domainBrowserDomainSelected: pathArray ? DomainPathToDNSDomain(pathArray) : nil];
	}
	}

	#pragma mark - NSBrowserDelegate

	- (NSInteger)browser:(NSBrowser *)sender numberOfRowsInColumn:(NSInteger)column
	{
	return ([self.bonjour subDomainsAtDomainPath: [sender pathArrayToColumn: column includeSelectedRow: NO]].count);
	}

	- (void)browser:(NSBrowser *)sender willDisplayCell:(id)cell atRow:(NSUInteger)row column:(NSInteger)column
	{
	// Get the name
	NSMutableArray * pathArray = [NSMutableArray arrayWithArray: [sender pathArrayToColumn: column includeSelectedRow: NO]];
	NSArray * rowArray = [[self.bonjour subDomainsAtDomainPath: pathArray] sortedArrayUsingComparator: ^(id obj1, id obj2) {
	return (NSComparisonResult)[ obj1[_CNSubDomainKey_subPath] compare: obj2[_CNSubDomainKey_subPath]];
	}];
	if (row < rowArray.count)
	{
	NSDictionary * item = [rowArray objectAtIndex: row];
	NSString *val = item[_CNSubDomainKey_subPath];
	[cell setStringValue: val];

	// See if it's a leaf
	[pathArray addObject: val];
	((NSBrowserCell*)cell).leaf = (![self.bonjour subDomainsAtDomainPath: pathArray].count);

	// Make Default domain bold
	if ([item[_CNSubDomainKey_defaultFlag] boolValue]) ((NSBrowserCell*)cell).font = [NSFont boldSystemFontOfSize: [NSFont systemFontSizeForControlSize: sender.controlSize]];
	else ((NSBrowserCell*)cell).font = [NSFont controlContentFontOfSize: [NSFont systemFontSizeForControlSize: sender.controlSize]];
	}
	}

	- (CGFloat)browser:(NSBrowser *)sender shouldSizeColumn:(NSInteger)column forUserResize:(BOOL)forUserResize toWidth:(CGFloat)suggestedWidth
	{
	(void)forUserResize;
	CGFloat newSize = 0;

	NSArray * pathArray = [NSArray arrayWithArray: [sender pathArrayToColumn: column includeSelectedRow: NO]];
	NSArray * rowArray = [[self.bonjour subDomainsAtDomainPath: pathArray] sortedArrayUsingComparator: ^(id obj1, id obj2) {
	return (NSComparisonResult)[ obj1[_CNSubDomainKey_subPath] compare: obj2[_CNSubDomainKey_subPath]];
	}];

	for (NSDictionary * next in rowArray)
	{
	NSFont * font = [next[_CNSubDomainKey_defaultFlag] boolValue] ?
	[NSFont boldSystemFontOfSize: [NSFont systemFontSizeForControlSize: sender.controlSize]]:
	[NSFont controlContentFontOfSize: [NSFont systemFontSizeForControlSize: sender.controlSize]];
	NSArray * itemArray = [pathArray arrayByAddingObjectsFromArray: [NSArray arrayWithObject: next[_CNSubDomainKey_subPath]]];
	NSBrowserCell * cell = [[NSBrowserCell alloc] initTextCell: next[_CNSubDomainKey_subPath]];
	cell.font = font;
	cell.leaf = ([self.bonjour subDomainsAtDomainPath: itemArray].count == 0);
	newSize = MAX(newSize, cell.cellSize.width + BROWSER_CELL_SPACING);
	if (!cell.leaf) newSize += BROWSER_ARROW_WIDTH;
	}

	if (!newSize) newSize = suggestedWidth;

	return(newSize);
	}

	#pragma mark - _CNDomainBrowser Delegates

	- (void)bonjourBrowserDomainUpdate:(NSArray *)defaultDomainPath
	{
	(void)defaultDomainPath;
	[self.browser loadColumnZero];
	#if INITIAL_LEGACYBROWSE
	if( !_initialPathSet )
	{
	_initialPathSet = YES;
	[_delegate domainBrowserDomainUpdate: [NSString string]];
	}
	else
	#endif
	{
	[self setDomainSelectionToPathArray: self.bonjour.defaultDomainPath];
	if (_delegate && [_delegate respondsToSelector: @selector(domainBrowserDomainUpdate:)])
	{
	[_delegate domainBrowserDomainUpdate: defaultDomainPath ? DomainPathToDNSDomain(defaultDomainPath) : [NSString string]];
	}
	}
	}

	#pragma mark - Commands

	- (IBAction)clickAction:(id)sender
	{
	(void)sender;
	NSArray * pathArray = [self.browser pathArrayToColumn: self.browser.selectedColumn includeSelectedRow: YES];
	if (!pathArray.count && (([NSEvent modifierFlags] & NSEventModifierFlagOption ) != NSEventModifierFlagOption)) pathArray = self.bonjour.defaultDomainPath;
	[self setDomainSelectionToPathArray: pathArray];
	[self browser: self.browser selectionDidChange: pathArray];
	}

	@end

	@interface CNBonjourDomainCell()

	@property(strong) NSMutableArray * browserCells;

	@end

	@implementation CNBonjourDomainCell

	- (instancetype)init
	{
	self = [super init];
	if (self)
	{
	self.browserCells = [NSMutableArray array];
	}
	return self;
	}

	- (instancetype)initWithCoder:(NSCoder *)coder
	{
	self = [super initWithCoder:coder];
	if (self)
	{
	self.browserCells = [NSMutableArray array];
	}
	return self;
	}

	- (id)copyWithZone:(NSZone *)zone
	{
	CNBonjourDomainCell *cell = [super copyWithZone: zone];
	if (cell)
	{
	cell.browserCells = [NSMutableArray arrayWithArray: self.browserCells];
	}
	return cell;
	}

	- (void) setObjectValue:(id)objectValue
	{
	[super setObjectValue: objectValue];

	[self.browserCells removeAllObjects];
	if ([objectValue isKindOfClass: [NSString class]])
	{
	NSUInteger count = 0;
	NSArray * subPaths = DNSDomainToDomainPath(objectValue);
	for (NSString * nextPath in subPaths)
	{
	NSBrowserCell * nextCell = [[NSBrowserCell alloc] initTextCell: nextPath];
	nextCell.leaf = (++count == subPaths.count);
	[self.browserCells addObject: nextCell];
	}
	}
	}

	- (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
	{
	CGFloat usedWidth = BROWSER_CELL_SPACING / 2;
	for (NSBrowserCell * nextCell in self.browserCells)
	{
	NSRect nextRect = cellFrame;
	nextRect.size.width = cellFrame.size.width - usedWidth;
	nextRect.origin.x += usedWidth;

	NSSize cellSize = [nextCell cellSizeForBounds: nextRect];
	CGFloat yOffset = (nextRect.size.height - cellSize.height) / 2;
	nextRect.size.width = cellSize.width;
	nextRect.size.height = cellSize.height;
	nextRect.origin.y += yOffset;

	[nextCell drawInteriorWithFrame: nextRect
	inView: controlView];
	usedWidth += nextRect.size.width + BROWSER_CELL_SPACING;
	}
	}

	@end

	@interface CNBonjourDomainView()

	@property(strong) CNBonjourDomainCell * cell;

	@end

	@implementation CNBonjourDomainView

	- (instancetype)initWithFrame:(NSRect)frameRect
	{
	self = [super initWithFrame:frameRect];
	if (self)
	{
	self.cell = [[CNBonjourDomainCell alloc] init];
	}
	return self;
	}

	- (instancetype)initWithCoder:(NSCoder *)coder
	{
	self = [super initWithCoder:coder];
	if (self)
	{
	self.cell = [[CNBonjourDomainCell alloc] init];
	}
	return self;
	}

	- (void) setDomain:(NSString *)domain
	{
	if (![domain isEqualToString: self.cell.stringValue])
	{
	self.cell.stringValue = domain;
	self.needsDisplay = YES;
	}
	}

	- (NSString *)domain
	{
	return self.cell.stringValue;
	}

	- (void) drawRect:(NSRect)dirtyRect
	{
	(void)dirtyRect; // Unused
	[self.cell drawInteriorWithFrame: self.bounds inView: self];
	}

	@end