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
Related
In building a custom NSButton, I've run into a problem handling highlight behavior. After clicking down on the button, holding, and dragging the cursor outside the button's bounds, mouseExited: and mouseEntered: events are not delivered. I understand the reason why, because in mouseDown: calling [super mouseDown:event]; will block until the click is released.
In researching this I came across this Stack Overflow post which describes the same problem. The solution noted is to add NSTrackingEnabledDuringMouseDrag to the NSTrackingArea options, which I have done, yet I continue to see this problem. I tried the other proposed solution with handling the next events in a loop, but this resulted in odd behavior. The button text color turns black on mouse down instead of highlighting the dimmed color, and it doesn't unhighlight upon releasing the mouse, it remains black.
I am using Xcode 9.3, running on macOS 10.13.4.
Here is my NSButton subclass:
#interface BorderlessButton : NSButton {
NSColor *_tempColor;
}
#property (strong, nonatomic) NSColor *color;
#end
#interface BorderlessButton ()
#property (nonatomic) BOOL pressed;
#end
#implementation BorderlessButton
- (id)init {
if (self = [super init]) {
[self setUp];
}
return self;
}
- (id)initWithFrame:(NSRect)frameRect {
if (self = [super initWithFrame:frameRect]) {
[self setUp];
}
return self;
}
- (id)initWithCoder:(NSCoder *)aDecoder {
if (self = [super initWithCoder:aDecoder]) {
[self setUp];
}
return self;
}
- (void)setUp {
_color = [NSColor redColor];
[self setTitle:self.title];
[self setButtonType:NSButtonTypeMomentaryChange];
[self setBordered:NO];
NSTrackingArea *area = [[NSTrackingArea alloc] initWithRect:self.bounds
options:NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways | NSTrackingEnabledDuringMouseDrag
owner:self
userInfo:nil];
[self addTrackingArea:area];
}
- (void)setTitle:(NSString *)title {
[super setTitle:title];
NSMutableAttributedString *colorTitle = [[NSMutableAttributedString alloc] initWithAttributedString:[self attributedTitle]];
[colorTitle addAttributes:#{NSFontAttributeName: self.font, NSForegroundColorAttributeName: self.color} range:NSMakeRange(0, [colorTitle length])];
[self setAttributedTitle:colorTitle];
}
- (void)setColor:(NSColor *)color {
_color = color;
[self setTitle:self.title];
}
- (void)mouseDown:(NSEvent *)event {
self.pressed = YES;
[self highlight:YES];
[super mouseDown:event]; // this blocks until released
[self mouseUp:event];
}
- (void)mouseUp:(NSEvent *)event {
self.pressed = NO;
[self highlight:NO];
[super mouseUp:event];
}
//FIXME: Not called after mouse press down and hold then exit
- (void)mouseExited:(NSEvent *)event {
if (self.pressed) {
[self highlight:NO];
}
[super mouseExited:event];
}
- (void)mouseEntered:(NSEvent *)event {
if (self.pressed) {
[self highlight:YES];
}
[super mouseEntered:event];
}
- (void)highlight:(BOOL)flag {
if (flag) {
if (self.isEnabled) {
NSColor *dimmedColor = [self dimmedColor];
_tempColor = _color;
self.color = dimmedColor;
[self setTitle:self.title];
}
} else {
if (self.isEnabled) {
self.color = _tempColor;
[self setTitle:self.title];
}
}
}
- (NSColor *)dimmedColor {
return [self.color colorWithAlphaComponent:0.5];
}
#end
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 :)
iam a newbie in Xcode programming and i didnt find the right answer in another Tread.
My Question: I have a Detailview with a CardQuestion(TextView) and a CardAnser(TextView).
How is the method to change the invisible Answer to visible.
On Action the Button "Show Answer".
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = self.chosenCard.name;
self.cardName.text = self.chosenCard.name;
self.cardQuestion.text = self.chosenCard.question;
self.cardAnswer.text = self.chosenCard.answer;
}
- (void)viewDidUnload
{
[self setCardName:nil];
[self setCardQuestion:nil];
[self setCardAnswer:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (IBAction)toAnswerButton:(id)sender{
}
#end
I hope you can understand my question.
UIView subviews (including UILabel, UITextField and UITextView) have a hidden property. Set that to YES to hide a view and to NO to unhide it. You can also set this property in Interface Builder.
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?
I created a local event loop and showed up a borderless window (derived from NSPanel),
I found in the event loop there's no NSMouseMoved event received, although I can receive Mouse button down/up events.
What should I do to get the NSMouseMoved events? I found making the float window as key window can receive the NSMouseMoved events, but I don't want to change key window. And it appears this is possible, because I found after clicking the test App Icon in System Dock Bar, I can receive the mousemoved events, and the key window/mainwindow are unchanged.
Here's the my test code: (Create a Cocoa App project names FloatWindowTest, and put a button to link with the onClick: IBAction).
Thanks in advance!
-Jonny
#import "FloatWindowTestAppDelegate.h"
#interface FloatWindow : NSPanel
#end
#interface FloatWindowContentView : NSView
#end
#implementation FloatWindowTestAppDelegate
#synthesize window;
- (void)delayedAction:(id)sender
{
// What does this function do?
// 1. create a float window
// 2. create a local event loop
// 3. print out the events got from nextEventMatchingMask.
// 4. send it to float window.
// What is the problem?
// In local event loop, althrough the event mask has set NSMouseMovedMask
// there's no mouse moved messages received.
//
FloatWindow* floatWindow = [[FloatWindow alloc] init];
NSEvent* event = [NSApp currentEvent];
NSPoint screenOrigin = [[self window] convertBaseToScreen:[event locationInWindow]];
[floatWindow setFrameTopLeftPoint:screenOrigin];
[floatWindow orderFront:nil];
//Making the float window as Key window will work, however
//change active window is not anticipated.
//[floatWindow makeKeyAndOrderFront:nil];
BOOL done = NO;
while (!done)
{
NSAutoreleasePool* pool = [NSAutoreleasePool new];
NSUInteger eventMask = NSLeftMouseDownMask|
NSLeftMouseUpMask|
NSMouseMovedMask|
NSMouseEnteredMask|
NSMouseExitedMask|
NSLeftMouseDraggedMask;
NSEvent* event = [NSApp nextEventMatchingMask:eventMask
untilDate:[NSDate distantFuture]
inMode:NSDefaultRunLoopMode
dequeue:YES];
//why I cannot get NSMouseMoved event??
NSLog(#"new event %#", [event description]);
[floatWindow sendEvent:event];
[pool drain];
}
[floatWindow release];
return;
}
-(IBAction)onClick:(id)sender
{
//Tried to postpone the local event loop
//after return from button's mouse tracking loop.
//but not fixes this problem.
[[NSRunLoop currentRunLoop]
performSelector:#selector(delayedAction:)
target:self
argument:nil
order:0
modes:[NSArray arrayWithObject:NSDefaultRunLoopMode]];
}
#end
#implementation FloatWindow
- (id)init
{
NSRect contentRect = NSMakeRect(200,300,200,300);
self = [super initWithContentRect:contentRect
styleMask:NSTitledWindowMask
backing:NSBackingStoreBuffered
defer:YES];
if (self) {
[self setLevel:NSFloatingWindowLevel];
NSRect frameRect = [self frameRectForContentRect:contentRect];
NSView* view = [[[FloatWindowContentView alloc]
initWithFrame:frameRect] autorelease];
[self setContentView:view];
[self setAcceptsMouseMovedEvents:YES];
[self setIgnoresMouseEvents:NO];
}
return self;
}
- (BOOL)becomesKeyOnlyIfNeeded
{
return YES;
}
- (void)becomeMainWindow
{
NSLog(#"becomeMainWindow");
[super becomeMainWindow];
}
- (void)becomeKeyWindow
{
NSLog(#"becomeKeyWindow");
[super becomeKeyWindow];
}
#end
#implementation FloatWindowContentView
- (BOOL)acceptsFirstMouse:(NSEvent *)theEvent
{
return YES;
}
- (BOOL)acceptsFirstResponder
{
return YES;
}
- (id)initWithFrame:(NSRect)frameRect
{
self = [super initWithFrame:frameRect];
if (self) {
NSTrackingArea* area;
area = [[NSTrackingArea alloc] initWithRect:frameRect
options:NSTrackingActiveAlways|
NSTrackingMouseMoved|
NSTrackingMouseEnteredAndExited
owner:self
userInfo:nil];
[self addTrackingArea:area];
[area release];
}
return self;
}
- (void)drawRect:(NSRect)rect
{
[[NSColor redColor] set];
NSRectFill([self bounds]);
}
- (BOOL)becomeFirstResponder
{
NSLog(#"becomeFirstResponder");
return [super becomeFirstResponder];
}
#end
I think I find the right answer. This is somehow related to tell NSWindow to accept MouseMoved event. but what to my surprise is, The window should accept mouseMoved events isn't the Floating Window, but the current Key window. So the solution is simple, just enable key window to accept mouse moved events before starting tracking, and revert the switch after ending tracking.