I'm with a NSMenu in an agent application (without the icon in the dock). When a button from this menu is tapped, I want to show a generic NSWindowController.
My menu button action:
- (IBAction)menuButtonTapped:(id)sender {
MyWindowController *myWindow = [[MyWindowController alloc] initWithWindowNibName:#"MyWindowController"];
[myWindow showWindow:nil];
[[myWindow window] makeMainWindow];
}
But the window just "flashes" in the screen (it shows and disappears really fast).
Any solution?
The reason the window is showing up for a split second and then disappearing has to do with ARC and how you go about creating the instance of the window controller:
- (IBAction)menuButtonTapped:(id)sender {
MyWindowController *myWindow = [[MyWindowController alloc]
initWithWindowNibName:#"MyWindowController"];
[myWindow showWindow:nil];
[[myWindow window] makeMainWindow];
}
Under ARC, the myWindow instance will be valid for the scope where it is defined. In other words, after the last [[myWindow window] makeMainWindow]; line is reached and run, the window controller will be released and deallocated, and as a result, its window will be removed from the screen.
Generally speaking, for items or objects you create that you want to "stick around", you should define them as an instance variable with a strong property.
For example, your .h would look something like this:
#class MyWindowController;
#interface MDAppController : NSObject
#property (nonatomic, strong) MyWindowController *windowController;
#end
And the revised menuButtonTapped: method would look something like this:
- (IBAction)menuButtonTapped:(id)sender {
if (self.windowController == nil) {
self.windowController = [[MyWindowController alloc]
initWithWindowNibName:#"MyWindowController"];
}
[self.windowController showWindow:nil];
}
Use this:
[[myWindow window] makeKeyAndOrderFront:self];
Related
I have a window I want to display as a modal window (OS X 10.10). I'm loading the NIB for the window and am able to set the title successfully and then display the window. But whatever I do to try to affect the window position doesn't work.
This works (part of NSWindowController sub-class):
[[self window] setTitle:title];
[[NSApplication sharedApplication] runModalForWindow:[self window]];
Here are ways with which I've tried to affect the position after setting the title:
[[self window] setFrameOrigin: NSMakePoint(200.0, 200.0) ];
[[self window] setFrameTopLeftPoint: NSMakePoint(200.0, 200.0) ];
[[self window] setFrame: NSMakeRect(200, 300, [[self window] frame].size.width, [[self window] frame].size.height) display:YES];
(I've tried other values as well - just for testing, but nothing.)
I can even query the
[[self window] frame]
and it pretends to accept the new values, but the window stubbornly keeps showing up in the same position.
What gives?
I have solved this by
1- Make a new NSWindow subclass, overriding the center method, where you just make the frame of the new window positioned at whatever NSPoint you want:
class CenteredInParentWindow: NSWindow {
var parentMinX : CGFloat?
var parentMinY : CGFloat?
override func center() {
guard let parentMinX = parentMinX, let parentMinY = parentMinY else {
super.center()
return
}
self.setFrameOrigin(NSPoint(x: parentMinX, y: parentMinY))
}
}
2 - Set WindowController's window class to be the new NSWindow subclass, in Storyboard.
3- Instatiate the window controller and set the attributes of the subclassed window
let myWindowController = self.storyboard!.instantiateController(withIdentifier: "windowID") as! PlansWindowController
if let customWindow = myWindowController.window as? CenteredInParentWindow {
customWindow.parentMinX = NSApplication.shared.mainWindow?.frame.minX
customWindow.parentMinY = NSApplication.shared.mainWindow?.frame.minY
}
NSApp.runModal(for: myWindowController.window!)
}
You may need runModal method for making the window a modal one. Don't forget to include NSApp.stopModal() in the windowWillClose method which is available in NSWindowDelegate in your View controller
I am showing a sheet within my main window. I present the sheet using this code:
AddContactWindowController *addContact = [[AddContactWindowController alloc] initWithWindowNibName:#"AddContactWindow"];
addContact.currentViewController = myView;
self.addWindowController = addContact;
[self.view.window beginSheet: addContact.window completionHandler:^(NSModalResponse returnCode) {
NSLog(#"completionHandler called");
}];
AddContactWindowController is a NSWindowController subclass. It has a view controller within it. Inside the view is a "close" button which invokes this:
[[[self view] window] close];
This does close the window, but the completionHandler from beginSheet is not invoked. This causes me problems down the road.
Is there any particular way we should close the NSWindow sheet for the completion handler to be successfully called? I've also tried [[[self view] window] orderOut:self] but that doesn't work either.
Thanks.
You will want to call -endSheet:returnCode: on your window, rather than just ordering it out.
You must properly finish the modal session.
I used to call - (void)performClose:(id)sender and stop the modal session in the delegate method.
- (void)windowWillClose:(NSNotification *)notification {
[NSApp stopModal];
}
But for a sheet, endSheet looks more appropriate.
self.addWindowController = addContact;
[self.view.window beginSheet:self.addWindowController.window];
...
...
[self.view.window endSheet:self.addWindowController.window];
self.addWindowController = nil
I'm making an app which lives in status bar. When status item is clicked, NSPopover pops up.
It looks like this:
Here's the problem: I want it to be "transient", that is if I click anywhere outside of the popover, it will close. And while NSPopoverBehaviorTransient works fine when popover is in a window, it doesn't work when it's in status bar.
How can I implement such behavior myself?
It turned out to be easy:
- (IBAction)openPopover:(id)sender
{
// (open popover)
if(popoverTransiencyMonitor == nil)
{
popoverTransiencyMonitor = [NSEvent addGlobalMonitorForEventsMatchingMask:NSLeftMouseDownMask|NSRightMouseDownMask handler:^(NSEvent* event)
{
[self closePopover:sender];
}];
}
}
- (IBAction)closePopover:(id)sender
{
if(popoverTransiencyMonitor)
{
[NSEvent removeMonitor:popoverTransiencyMonitor];
popoverTransiencyMonitor = nil;
}
// (close popover)
}
What wasn't easy, though, is that there are nasty issues with having a popover pop out of NSStatusItem (it didn't behave as desired when Mission Control was invoked or space switched to a full-screen window). I had to implement a custom window that always floats above the NSStatusItem and deals with switching to a full-screen window etc. It seemed easy, but clearly status items weren't designed for something like that ;)
The approach that I use is similar to the above answer except I have everything combined into one method instead of using two separate IBActions.
First, I declare the following properties
#property (strong, nonatomic) NSStatusItem *statusItem;
#property (strong, nonatomic) NSEvent *popoverTransiencyMonitor;
#property (weak, nonatomic) IBOutlet NSPopover *popover;
#property (weak, nonatomic) IBOutlet NSView *popoverView;
then in awakeFromNib I set up the status bar item
- (void)awakeFromNib {
self.statusItem = [[NSStatusBar systemStatusBar] statusItemWithLength:NSVariableStatusItemLength];
self.statusItem.title = #"Title";
self.statusItem.highlightMode = YES;
self.statusItem.action = #selector(itemClicked:);
}
followed by the method that is called when the status bar item is clicked
- (void)itemClicked:(id)sender {
[[self popover] showRelativeToRect:[sender bounds] ofView:sender preferredEdge:NSMinYEdge];
if (self.popoverTransiencyMonitor == nil) {
self.popoverTransiencyMonitor = [NSEvent addGlobalMonitorForEventsMatchingMask:(NSLeftMouseDownMask | NSRightMouseDownMask | NSKeyUpMask) handler:^(NSEvent* event) {
[NSEvent removeMonitor:self.popoverTransiencyMonitor];
self.popoverTransiencyMonitor = nil;
[self.popover close];
}];
}
}
which makes the popover appear and also close when the user clicks outside the view.
Note that in Interface Builder you must set the behavior of the popover to Transient so the popover will close when the user clicks the status item.
I have a NSDocument class, where I'd need to access the main menu window, the one that gets opened when the app start. When I operate in that window from the app all seems to work, but when trying to do the same operations from readFromFileWrapper:ofType:error: the window I access seems to be nil. Why this happens?
EDIT: Some code which deals with this:
- (BOOL)readFromFileWrapper:(NSFileWrapper *)fileWrapper ofType:(NSString *)typeName error:(NSError **)outError
{
if([[NSFileManager alloc] fileExistsAtPath:[NSString stringWithFormat:#"%#/Project.plist",[[self fileURL] path]]]) {
NSLog(#"%#", [[self fileURL] path]);
NSDictionary *project = [NSDictionary dictionaryWithContentsOfFile:[NSString stringWithFormat:#"%#/Project.plist",[[self fileURL] path]]];
if([[project objectForKey:#"type"] isEqualToString:#"vote"]) {
[self openProject:[[self fileURL] path] type:#"vote"];
return YES;
} else if([[project objectForKey:#"type"] isEqualToString:#"quiz"]) {
[self openProject:[[self fileURL] path] type:#"quiz"];
return YES;
} else {
return NO;
}
} else {
return NO;
}
}
That is my readFromFileWrapper:ofType:error: method. Here is my openProject:type: method:
-(void)openProject:(NSString *)filepath type:(NSString *)type
{
NSLog(#"Opening project # %#",filepath);
NSLog(#"%#", [MainWindow description]);
[projectDesignerView setFrame:[[[[MainWindow contentView] subviews] objectAtIndex:0] frame]];
[projectDesignerToolbar setFrame:[MainWindow frame] display:FALSE];
[[MainWindow contentView] replaceSubview:[[[MainWindow contentView] subviews]objectAtIndex:0] with:projectDesignerView];
[[projectDesignerToolbar toolbar] setShowsBaselineSeparator:YES];
[MainWindow setToolbar:[projectDesignerToolbar toolbar]];
[MainWindow setRepresentedFilename:filepath];
[MainWindow setTitle:[NSString stringWithFormat:#"%# - %#", [[filepath lastPathComponent] stringByDeletingPathExtension], [projectDesignerToolbar title]]];
NSString *path = [[NSBundle mainBundle] pathForResource:#"projectDesigner" ofType:#"html"];
NSURL *url = [NSURL fileURLWithPath:path];
[[projectDesignerWebview mainFrame] loadRequest:[NSURLRequest requestWithURL:url]];
}
NSLog(#"%#", [MainWindow description]); returns nil, when MainWindow should be the Main App Window. I think the problem is that double-clicking on a file reallocs all, and hence is failing.
It's not entirely clear what you're asking. You mention that MainWindow is an outlet in MainMenu.xib but you don't specify what class is defining the outlet.
If this window is designed to have a single main "project" window then you should assign the outlet property in your application delegate.
You can then access this from other classes using something like [(YourAppDelegate*)[NSApp delegate] mainWindow];.
If, however, you are trying to obtain a reference to the window of the current document then it's a little bit more complicated.
The reason that NSDocument does not have a window outlet by default is that it is designed to work with instances of NSWindowController that themselves manage the various windows related to the document. This is so a document can have multiple windows showing different views of the same data, additional palettes related to the document and so on. Each instance of NSWindowController would have its own window nib file and window outlet.
By default, NSDocument creates a single instance of NSWindowController for you if you do not specifically create and assign NSWindowController instances to the document. This is automatic, you don't need to even know the window controller exists.
That means that if you aren't managing your document windows with NSWindowController instances yourself, you can get the window attached to the NSWindowController that is automatically-created by NSDocument like so:
/* Only implement this in an NSDocument instance where the
automatic window controller is being used.
If the document has multiple window controllers, you must
keep track of the main window controller yourself
and return its window
*/
- (NSWindow*)documentWindow
{
if([[self windowControllers] count] == 1)
{
return [[[self windowControllers] firstObject] window];
}
return nil;
}
The normal way to handle this is to add an IBOutlet to your NSDocument subclass, then hook it up to the document window in the .xib file.
In your .h:
#interface MyDocument : NSDocument
#property (nonatomic, assign) IBOutlet NSWindow *docWindow;
#end
In your .m:
#implementation MyDocument : NSDocument
#synthesize docWindow;
#end
Then, the most important part, open up MyDocument.xib (or whatever it's called), and drag a connection from File's Owner (assuming that's your NSDocument subclass, which it is by default) to the main document window, and hook it up to the docWindow outlet.
I am trying to open one window from another using makeKeyAndOrderFront. The new window appears, but does not receive focus.
The code for the main window is:
#import "SecondWindowController.h"
#implementation FirstWindowController
-(IBAction)showSecondWindow:(id)sender
{
if (!secondWindowController)
secondWindowController = [[SecondWindowController alloc] init];
[[secondWindowController window] makeKeyAndOrderFront:self];
}
SecondWindowController is a NSWindowController, as follows:
#implementation SecondWindowController
-(id)init
{
if (![super initWithWindowNibName:#"SecondWindow"])
return nil;
return self;
}
I've also tried putting [secondWindowController showWindow:self] before the makeKeyAndOrderFront but it doesn't make a difference.
Did you make sure the window outlet for SecondWindowController is hooked up to the window in your NIB? The window could be displayed just by loading the NIB, even if the outlet is not hooked up.
Are you using a borderless window? If so you need to override canBecomeKeyWindow and return YES
Try this:
if (!secondWindowController)
secondWindowController = [[SecondWindowController alloc] init];
NSApplication *thisApp = [NSApplication sharedApplication];
[thisApp activateIgnoringOtherApps:YES];
[[secondWindowController window] makeKeyAndOrderFront:self];