Accessing Button in NIB that is in my framework - cocoa

I am trying to create a simple framework with a nib that has a button on it which can be customized (selector wise and title wise.) for this, i did the following:
I added a property:
#property (nonatomic,retain) NSButton*accessoryButton;
and connected it to my outlet:
#synthesize accessoryButton = littleButton;
I then shared the instance as such:
+ (TestWindow *)sharedPanel
{
return sharedPanel ? sharedPanel : [[[self alloc] init] autorelease];
}
- (id)init
{
if (sharedPanel) {
[self dealloc];
} else {
sharedPanel = [super init];
}
return sharedPanel;
}
and load the nib:
if( !somewindow )
{
[NSBundle loadNibNamed: #"window" owner:nil];
}
[NSApp activateIgnoringOtherApps:YES];
[somewindow center];
[somewindow setLevel:NSModalPanelWindowLevel];
[somewindow makeKeyAndOrderFront:self];
When I however want to change the title for example from my sample project, it never works.
[TestWindow sharedPanel] setTitle:#"hi"]; //doesnt work
Here's my setTitle: method:
-(void)setTitle:(NSString *)buttonTitle
{
[[self accessoryButton] setTitle:buttonTitle];
[[self accessoryButton] display];
}
I don't get an error but nothing happens either. What am I missing?

Is the button nil at runtime? Are you sure your button's outlet is connected?

Does your init function get called when the NIB is loaded?

Related

traffic buttons not responding in MacOS application

I am creating an application on MacOS and I am having this problem. I am using custom traffic buttons. When the window is not active if I click they do not respond, what I get is the window becoming active.
How could I fix that so the buttons will respond even if the window is not the active one.
I have them added to a custom view, here is what I have:
My View:
#implementation TrafficView
- (id)init {
if ((self = [super init])) {
trackingArea_.reset([[NSTrackingArea alloc]
initWithRect:[self bounds]
options:(NSTrackingMouseEnteredAndExited |
NSTrackingActiveAlways |
NSTrackingInVisibleRect)
owner:self
userInfo:nil]);
[self addTrackingArea:trackingArea_.get()];
}
return self;
}
- (void)dealloc {
[super dealloc];
}
- (BOOL)acceptsFirstResponder {
return YES;
}
- (BOOL)acceptsFirstMouse:(NSEvent*)theEvent {
return YES;
}
- (void)mouseEntered:(NSEvent*)event {
mouseInside_ = YES;
for (NSView* view in self.subviews)
[view setNeedsDisplay:YES];
}
- (void)mouseExited:(NSEvent*)event {
mouseInside_ = NO;
for (NSView* view in self.subviews)
[view setNeedsDisplay:YES];
}
- (BOOL)_mouseInGroup:(NSButton *)button {
return mouseInside_;
}
#end
Now to add the buttons I do this in the window implementation (I will post the code for only one button)
trafficView_.reset([[TrafficView alloc] init]);
[self.frameView addSubview:trafficView_];
// close button is declared as NSButton
closeButton_ =
[NSWindow standardWindowButton:NSWindowCloseButton
forStyleMask:NSTitledWindowMask];
[trafficView_ addSubview:closeButton_];
Note that my custom view (trafficView_) is added to the NSThemeFrame class, self.frameView
- (NSView*)frameView {
return [[self contentView] superview];
}
I do not why the buttons do not respond.
Could someone help on this?
Thanks in advance

draggingEntered not called

I have an NSBox subclass called dragBox. I want to be able to drag it around a canvas. The code is as follows:
-(void) awakeFromNib
{
[[self superview] registerForDraggedTypes:[NSArray arrayWithObject:NSFilenamesPboardType]];
}
-(void) mouseDown:(NSEvent *)theEvent
{
[self dragImage:[[NSImage alloc] initWithContentsOfFile:#"/Users/bruce/Desktop/Untitled-1.png"] at:NSMakePoint(32, 32) offset:NSMakeSize(0,0) event:theEvent pasteboard:[NSPasteboard pasteboardWithName:NSDragPboard] source:self slideBack:YES];
}
-(NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender // validate
{
NSLog(#"Updated");
return [sender draggingSourceOperationMask];
}
-(NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender {
NSLog(#"Drag Entered");
return [sender draggingSourceOperationMask];
}
- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender {
NSLog(#"Move Box");
[self setFrameOrigin:[sender draggingLocation]];
return YES;
}
-(BOOL) prepareForDragOperation:(id<NSDraggingInfo>)sender
{NSLog(#"Prepared");
return YES;
}
Why isn't dragEntered being called? I have tried to use all the pboard types and such. Nothing seems to work. I have also changed the registerForDraggedTypes to just work off of the [self] view. The box is a subview of a canvas.
Bruce
I found that awakeFromNib was the wrong place to put my registerForDragTypes call since I am programmatically adding my view (i.e. not adding it via a Nib). I had to put the call into initWithFrame:
- (id)initWithFrame:(NSRect)frame
{
self = [super initWithFrame:frame];
if (self) {
[self registerForDraggedTypes: [NSArray arrayWithObjects:NSTIFFPboardType,NSFilenamesPboardType,nil]];
}
return self;
}
Bruce,
Your Code needs to be changed in the below way. I believe that view should be registered for drag types to make the method draggingEntered to get called.
#interface NSModifiedBox : NSBox
#end
#implementation NSModifiedBox
- (void)drawRect:(NSRect)dirtyRect
{
// Drawing code here.
[self registerForDraggedTypes:
[NSArray arrayWithObjects:NSTIFFPboardType,NSFilenamesPboardType,nil]];
[super drawRect:dirtyRect];
}
- (NSDragOperation)draggingEntered:(id )sender
{
if ((NSDragOperationGeneric & [sender draggingSourceOperationMask])
== NSDragOperationGeneric)
{
return NSDragOperationGeneric;
} // end if
// not a drag we can use
return NSDragOperationNone;
}
- (BOOL)prepareForDragOperation:(id )sender
{
return YES;
}
#end
Now Drag and Drop a NSBox on the Xib and the Modify the class of NSBox to NSModifiedBox.
Set a break point to the method "draggingEntered".
Now Drag a ".png" or ".gif" file and drop on the NSModifiedBox and you see the "draggingEntered" will get invoked
Or you can check by using NSLog as well inside a "draggingEntered".
Hope my answer will help you :)

Custom NSView Drag Destination

I'm trying to create a simple NSView that will allow a folder from Finder to be dragged onto it. A folder path is the only thing I want the view to accept as a draggable item. I've been trying to follow the Apple documentation, but so far nothing's working. So far, I've just tried to get the view to work with any file type, but I can't even seem to do that. Here's what I have so far:
-(id) initWithFrame:(NSRect)frameRect
{
if (self = [super initWithFrame:frameRect])
{
NSLog(#"getting called");
[self registerForDraggedTypes:[NSArray arrayWithObjects:NSPasteboardTypeString,
NSPasteboardTypePDF,
NSPasteboardTypeTIFF,
NSPasteboardTypePNG,
NSPasteboardTypeRTF,
NSPasteboardTypeRTFD,
NSPasteboardTypeHTML,
NSPasteboardTypeTabularText,
NSPasteboardTypeFont,
NSPasteboardTypeRuler,
NSPasteboardTypeColor,
NSPasteboardTypeSound,
NSPasteboardTypeMultipleTextSelection,
NSPasteboardTypeFindPanelSearchOptions, nil]];
}
return self;
}
-(BOOL) prepareForDragOperation: (id<NSDraggingInfo>) sender
{
NSLog(#"preparing for drag");
return YES;
}
The initWithFrame: method is getting called, but when I try to drag into the view the prepareForDragOperation: method doesn't ever seem to get called. My questions:
What am I doing wrong? Why isn't prepareForDragOperation: ever getting called?
What do I need to do to get the drag operation to only support dragging folders?
Update
I updated my registerForDraggedTypes: method with every type I could find. It now looks like this:
[self registerForDraggedTypes:[NSArray arrayWithObjects:NSPasteboardTypeString,
NSPasteboardTypePDF,
NSPasteboardTypeTIFF,
NSPasteboardTypePNG,
NSPasteboardTypeRTF,
NSPasteboardTypeRTFD,
NSPasteboardTypeHTML,
NSPasteboardTypeTabularText,
NSPasteboardTypeFont,
NSPasteboardTypeRuler,
NSPasteboardTypeColor,
NSPasteboardTypeSound,
NSPasteboardTypeMultipleTextSelection,
NSPasteboardTypeFindPanelSearchOptions,
NSStringPboardType,
NSFilenamesPboardType,
NSPostScriptPboardType,
NSTIFFPboardType,
NSRTFPboardType,
NSTabularTextPboardType,
NSFontPboardType,
NSRulerPboardType,
NSFileContentsPboardType,
NSColorPboardType,
NSRTFDPboardType,
NSHTMLPboardType,
NSURLPboardType,
NSPDFPboardType,
NSVCardPboardType,
NSFilesPromisePboardType,
NSMultipleTextSelectionPboardType, nil]];
I've noticed that the prepareForDragOperation: method isn't getting called when I drag a folder into the view. Did I miss a step?
Here's a simple little drag & drop view meeting those criteria:
MDDragDropView.h:
#interface MDDragDropView : NSView {
BOOL isHighlighted;
}
#property (assign, setter=setHighlighted:) BOOL isHighlighted;
#end
MDDragDropView.m:
#implementation MDDragDropView
#dynamic isHighlighted;
- (void)awakeFromNib {
NSLog(#"[%# %#]", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
[self registerForDraggedTypes:[NSArray arrayWithObjects:NSFilenamesPboardType, nil]];
}
- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender {
NSLog(#"[%# %#]", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
NSPasteboard *pboard = [sender draggingPasteboard];
if ([[pboard types] containsObject:NSFilenamesPboardType]) {
NSArray *paths = [pboard propertyListForType:NSFilenamesPboardType];
for (NSString *path in paths) {
NSError *error = nil;
NSString *utiType = [[NSWorkspace sharedWorkspace]
typeOfFile:path error:&error];
if (![[NSWorkspace sharedWorkspace]
type:utiType conformsToType:(id)kUTTypeFolder]) {
[self setHighlighted:NO];
return NSDragOperationNone;
}
}
}
[self setHighlighted:YES];
return NSDragOperationEvery;
}
And the rest of the methods:
- (void)draggingExited:(id <NSDraggingInfo>)sender {
[self setHighlighted:NO];
}
- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender {
return YES;
}
- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender {
[self setHighlighted:NO];
return YES;
}
- (BOOL)isHighlighted {
return isHighlighted;
}
- (void)setHighlighted:(BOOL)value {
isHighlighted = value;
[self setNeedsDisplay:YES];
}
- (void)drawRect:(NSRect)dirtyRect {
[super drawRect:dirtyRect];
if (isHighlighted) {
[NSBezierPath setDefaultLineWidth:6.0];
[[NSColor keyboardFocusIndicatorColor] set];
[NSBezierPath strokeRect:self.frame];
}
}
#end
The reason prepareForDragOperation: isn't being called is that the dragging destination sequence follows a precise set of steps, and if the earlier steps aren't implemented, or are implemented but return a "stop the drag operation" type of answer, the later methods are never reached. (In your case, it doesn't appear that you've implemented the draggingEntered: method, which would need to return something other than NSDragOperationNone to continue on in the sequence).
Before prepareForDragOperation: is sent, the view is first sent a series of dragging destination messages:
A single - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender.
Depending on the NSDragOperation mask returned from that method, the following will be called if it's implemented in your class:
Multiple - (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender.
Depending on the NSDragOperation mask returned from that method, then prepareForDragOperation: will be called.
I'm using NSURLPboardType to register for stuff being dropped from the Finder (when I drag a file or a folder to my application, it receives them as urls)
Try this. And if it works, it'll solve your second problem : just check if the URL is a folder to accept or reject the drop :
// if item is an NSURL * :
CFURLHasDirectoryPath((CFURLRef)item)
// returns true if item is the URL of a folder.

Cocoa: Right Click NSStatusItem

I am a .Net developer who need to port a small project into Mac, so I know next to nothing about Objective C. In fact the code below was just a bunch of grasping at straws and shooting in the dark.
Trying to build a Status Menu program that opens one or another window depending on if it is a left-click or a right-click/ctrl+click. Here is what I have, and it works for left-click only (obviously):
-(void) awakeFromNib{
NSBundle *bundle = [NSbundle mainBundle];
statusItem = [[NSStatusBar systemStatusBar] statusItemWithLength:NSSquareStatusItemLength] retain];
[statusImage = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:#"icon" ofType:#"png"]];
[statusItem setImage:statusImage];
[statusItem setToolTip:#"Program Name"];
[statusItem setHighlightMode:YES];
[statusItem setAction:#selector(openWin:)];
[statusItem setTarget: self];
}
-(void)openWin:(id)sender{
[self openLeftWindow:sender];
}
-(IBAction)openLeftWindow:(id)sender{
//Code to populate Left Click Window
[leftWindow makeKeyAndorderFront:nil];
}
-(IBAction)openRightWindow:(id)sender{
//Code to populate Right Click Window
[rightWindow makeKeyAndorderFront:nil];
}
It seems to me that the solution would be either an if statement in the openWin() function to determine which button is clicked (or if ctrl was held down) then run the appropriate code or to make the menu aware of both the left and right clicks. But neither of these have worked when I attempted to do so.
Thanks In Advance.
If you will be satisfied with detecting control-click and not right click, then the first block of code will do what you want. If you really need the right click detection, you will have to use a custom view instead of an image in your NSStatusItem, and the second block of code will work.
Simple Method:
- (void)openWin:(id)sender {
NSEvent *event = [NSApp currentEvent];
if([event modifierFlags] & NSControlKeyMask) {
[self openRightWindow:nil];
} else {
[self openLeftWindow:nil];
}
}
Custom view method:
- (void)awakeFromNib {
...
statusImage = ...
MyView *view = [MyView new];
view.image = statusImage;
[statusItem setView:view];
[statusItem setToolTip:#"Program Name"];
view target = self;
view action = #selector(openLeftWindow:);
view rightAction = #selector(openRightWindow:);
[view release];
//[statusImage release]; //If you are not using it anymore, you should release it.
}
MyView.h
#import <Cocoa/Cocoa.h>
#interface MyView : NSControl {
NSImage *image;
id target;
SEL action, rightAction;
}
#property (retain) NSImage *image;
#property (assign) id target;
#property (assign) SEL action, rightAction;
#end
MyView.m
#import "MyView.h"
#implementation MyView
#synthesize image, target, action, rightAction;
- (void)mouseUp:(NSEvent *)event {
if([event modifierFlags] & NSControlKeyMask) {
[NSApp sendAction:self.rightAction to:self.target from:self];
} else {
[NSApp sendAction:self.action to:self.target from:self];
}
}
- (void)rightMouseUp:(NSEvent *)event {
[NSApp sendAction:self.rightAction to:self.target from:self];
}
- (void)dealloc {
self.image = nil;
[super dealloc];
}
- (void)drawRect:(NSRect)rect {
[self.image drawInRect:self.bounds fromRect:NSZeroRect operation:NSCompositeSourceOver fraction:1];
}
#end
I would create a view and use the status items method.
-setView:
Then in the subclassed view you can detect ctrl+LMB using the following
- (void)mouseDown:(NSEvent *)theEvent
{
[super mouseDown:theEvent];
//Respond to the mouse click
if ([theEvent modifierFlags] & NSCommandKeyMask) //Command + LMB
{
//Do something
}
}
I think you can figure out the rest.
A more simplified response (Note, only works with control + click)
Properties:
#property (strong, nonatomic) NSStatusItem *statusItem;
#property (weak) IBOutlet NSMenu *statusMenu;
In Your Application Did Load:
[self.statusItem setAction:#selector(itemClicked:)];
Clicked Function:
- (void)itemClicked:(id)sender
{
NSEvent *event = [NSApp currentEvent];
if([event modifierFlags] & NSControlKeyMask) {
NSLog(#"Right Click Pressed");
[self.statusItem popUpStatusItemMenu:self.statusMenu];
} else {
// Do Nothing
NSLog(#"Left Click Pressed");
}
}

NSTextField not noticing lost focus when pressing Tab?

I can't seem to find a way to get notified when an NSTextField loses focus by pressing the Tab key. I get a nice textDidEndEditing when clicking another control or when pressing Enter, but not if I change the focus by pressing the Tab key.
Also tried to yank KeyDown and doCommandBySelector for this purpose but I got nowhere.
Any ideas?
Thanks in advance
Edit:
Forgot to mention, but I tried resignFirstResponder too. This is the code I tried:
- (BOOL)resignFirstResponder
{
NSRunAlertPanel(#"", #"Lost Focus",#"OK", nil, nil);
return [super resignFirstResponder];
}
- (BOOL)becomeFirstResponder
{
NSRunAlertPanel(#"", #"Got focus",#"OK", nil, nil);
return [super becomeFirstResponder];
}
Strangely, what happens here is that when getting focus, both becomeFirstResponder and resignFirstResponder are called one after the other. But when changing focus away from the control, neither are.
"I get a nice textDidEndEditing when
clicking another control or when
pressing Enter, but not if I change
the focus by pressing the Tab key."
As of April 2011, with OS X 10.6 libs, I'm using:
- (void)controlTextDidEndEditing:(NSNotification *)aNotification
...to listen for NSTextField losing focus, and it's working correctly. Is this possible in your situation? Is it something that used to be broken, but is now fixed by Apple?
If so, it's much less code :).
Ok, I've found a way to do it: use a window delegate to make the window return a custom field editor. This field editor keeps track of the last TextField that's been activated and calls its textDidEndEditting method when losing firstResponder itself. Here's an example of how to do it:
#import <Cocoa/Cocoa.h>
#import <AppKit/AppKit.h>
#interface MyTextField : NSTextField
- (BOOL)resignFirstResponder;
- (void)textDidEndEditing:(NSNotification *)notification;
#end
#interface MyFieldEditor : NSTextView
{
MyTextField * lastBox;
}
-(void) setLastEditBox:(MyTextField*) box;
#end
#interface MyWindowDelegate : NSWindowController
{
MyFieldEditor *fieldEditor;
}
#end
#implementation MyFieldEditor
-(void) setLastEditBox:(MyTextField*) box{ lastBox = box; }
-(id)init
{
if (self = [super init])
[self setFieldEditor:YES];
return self;
}
- (BOOL)resignFirstResponder
{
// Activate the last active editbox editting-end event
if(lastBox != nil)
{
[lastBox textShouldEndEditing:self];
lastBox = nil;
}
return [super resignFirstResponder];
}
#end
#implementation MyWindowDelegate
-(id)windowWillReturnFieldEditor:(NSWindow *)sender toObject:(id)client
{
if(fieldEditor == nil) // Return our special field editor
fieldEditor = [[[MyFieldEditor alloc] autorelease] init];
return fieldEditor;
}
#end
#implementation MyTextField
- (BOOL)resignFirstResponder
{
// We're losing first responder, inform the field editor that this was the last edit box activated
MyFieldEditor* myTf = (MyFieldEditor*) [[self window] fieldEditor:YES forObject:self];
[myTf setLastEditBox:self];
return [super resignFirstResponder];
}
- (void)textDidEndEditing:(NSNotification *)notification;
{
[super textDidEndEditing:notification];
[self setStringValue:#"RECEIVED ENDEDITING"];
}
#end
int main(int argc, char *argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSApplication *app = [NSApplication sharedApplication];
NSRect frame = NSMakeRect(100, 100, 200, 150);
// Create the window
NSWindow* window = [[[NSWindow alloc] autorelease ] initWithContentRect:frame styleMask:NSClosableWindowMask|NSResizableWindowMask
backing:NSBackingStoreBuffered defer:NO];
[window setDelegate:[[MyWindowDelegate alloc] autorelease]];
MyTextField * tf = [ [[ MyTextField alloc ] autorelease] initWithFrame: NSMakeRect( 30.0, 100.0, 150.0, 22.0 ) ];
[ [ window contentView ] addSubview: tf ];
MyTextField * tf2 = [ [[ MyTextField alloc ] autorelease] initWithFrame: NSMakeRect( 30.0, 40.0, 150.0, 22.0 ) ];
[ [ window contentView ] addSubview: tf2 ];
[window makeKeyAndOrderFront: window];
[app run];
[pool release];
return 0;
}
You have to do only this
For key Tab
self.textfield.delegate = self;
and then implement this method
- (void)control:(NSControl *)control textView:(NSTextView *)fieldEditor doCommandBySelector:(SEL)commandSelector
{
NSLog(#"Selector method is (%#)", NSStringFromSelector( commandSelector ) );
if (commandSelector == #selector(insertTab:)) {
//Do something against TAB key
//Or Call a Method
}
}
or see my answer at
Execute an Action when the Enter-Key is pressed in a NSTextField?
With the understanding that I mentioned in my other post, I figured out an answer. It's a little convoluted but it works. You have to subclass both the NSTextField and the NSWindow because you need information from both to set this up. Here's the subclasses:
HMTextField.h
#import <Foundation/Foundation.h>
#interface HMTextField : NSTextField {
}
#end
HMTextField.m
#import "HMTextField.h"
#import "HMWindow.h"
#implementation HMTextField
- (BOOL)becomeFirstResponder {
[(HMWindow*)[self window] setTfBecameFirstResponder:YES];
return [super becomeFirstResponder];
}
#end
HMWindow.h
#import <Foundation/Foundation.h>
#interface HMWindow : NSWindow {
BOOL tfIsFirstResponder, tfBecameFirstResponder;
}
#property (nonatomic, readwrite, assign) BOOL tfBecameFirstResponder;
#end
HMWindow.m
#import "HMWindow.h"
#implementation HMWindow
#synthesize tfBecameFirstResponder;
-(id)init {
if (self = [super init]) {
tfIsFirstResponder = NO;
}
return self;
}
- (NSResponder *)firstResponder {
id fr = [super firstResponder];
if ([fr isEqualTo:[self fieldEditor:NO forObject:nil]]) {
tfIsFirstResponder = YES;
} else {
if (tfIsFirstResponder && tfBecameFirstResponder) {
NSLog(#"the text field stopped being first responder");
tfBecameFirstResponder = NO;
}
tfIsFirstResponder = NO;
}
return fr;
}
#end
Make the classes and make your objects their class. You'll be notified of the first responder change from your text field where the NSLog message is in the HMWindow.m file. If you need help understanding how it works let me know.
Here's an example of how to indicate the appropriate time a custom NSTextFieldCell (NSCell) should draw its own bezel & focus ring (in the method [NSTextFieldCell drawWithFrame: inView]), by 'borrowing' the cell's highlight field, setting it when the text field gains focus, and clearing it when the text field loses focus (editing completes).
This technique overcomes some problems:
The cell can't easily determine if it has focus.
The cell can't easily determine which higher level component (e.g. text field or button) it belongs to to track via its parent
NSTextField can instantaneously resign first responder after gaining it, which could make it seem like it lost user focus when it didn't.
Since we're re-purposing the cell's "highlighted" state field, in order to communicate the focus state to the cell, be sure to return nil from the custom NSTextFieldCell's [highlightColorWithFrame: inView:] method.
#import "CustomTextField.h"
#implementation CustomTextField
-(BOOL)becomeFirstResponder {
((NSTextFieldCell *)self.cell).highlighted = true;
return [super becomeFirstResponder];
}
-(void)textDidEndEditing:(NSNotification *)notification {
((NSTextFieldCell *)self.cell).highlighted = false;
[super textDidEndEditing:notification];
}
#end
Complex answers. There is a simpler way to do it.
Don't forget to subclass your NSTextField to NotificableTextField and set its delegate to your view controller.
NotificableTextField.h:
#import <Cocoa/Cocoa.h>
#protocol NotificableTextFieldDelegate <NSObject>
#optional
- (void)textFieldStartedEditing:(NSTextField *)textField;
- (void)textFieldEndedEditing:(NSTextField *)textField;
#end
#interface NotificableTextField : NSTextField
#end
NotificableTextField.m:
#import "NotificableTextField.h"
#implementation NotificableTextField
- (void)awakeFromNib
{
[super awakeFromNib];
self.target = self;
self.action = #selector(inputEnd);
}
- (BOOL)becomeFirstResponder
{
BOOL status = [super becomeFirstResponder];
if (status && [self.delegate respondsToSelector:#selector(textFieldStartedEditing:)])
[(id<NotificableTextFieldDelegate>)self.delegate textFieldStartedEditing:self];
return status;
}
- (void)inputEnd
{
if ([self.delegate respondsToSelector:#selector(textFieldEndedEditing:)])
[(id<NotificableTextFieldDelegate>)self.delegate textFieldEndedEditing:self];
}
#end
NSTextField is a subclass of NSResponder. NSResponder has a method - (BOOL)resignFirstResponder. That will notify you when the NSTextField is no longer first responder... ie. loses focus. So subclass your NSTextField and do your stuff in there.

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