I added these two outlets to my AppController.j:
#outlet CPWindow theWindow;
#outlet CPWindow thePanel;
theWindow fills the whole browser window (setFullPlatformWindow:YES).
Now I'm using a CPToolbarItem (inside a CPToolbar which I added to theWindow) performing this method on click:
- (IBAction)showPanel:(id)aSender {
// ...
[CPApp runModalForWindow:thePanel];
}
I've created all these UI elements in Interface Builder.
When I'm closing thePanel, theWindow seems to stuck - it is not possible to click buttons or interact with elements in theWindow in any other way.
What's going wrong here?
It's likely you're not dismissing your panel successfully, and so its modal state remains active. Try this in the code responsible for closing your panel:
[CPApp abortModal];
[thePanel close];
Related
In my MAC app, in one use case, I prompt an window to the user and give him 2 options (say buttons Save and Cancel). I want to force the user to select either of the 2 buttons to close the window.
But currently I find that if the user hits "Command + w" key when window has the focus, the window gets closed. In the .xib resource file, I uncheck the "close" option but that only disables the close option in the window UI.
How do I make sure that my window ignores the "Command+w" key and stays as is without closing.
Have also tried removing the notification by adding below code in awakeFromNib method but did not help.
[[NSNotificationCenter defaultCenter] removeObserver:NSWindowWillCloseNotification ];
Have also tried to implement "windowShouldClose" delegate method and return NO, but this method is never called. The documentation too says that this method is not reliable.
You should use an NSAlert for this sort of prompt, probably run as a sheet on the window. That would avoid the problem of closing it.
In any case, the window's delegate can implement -windowShouldClose: to control if a window is allowed to close. You can make an object (often the window controller) be its delegate by declaring that it adopts the NSWindowDelegate protocol and connecting the window's delegate outlet to that object.
I recently had to solve a similar problem. I'm not sure that this is the 'right' way to do it. But it worked for my purposes, and might work for you.
By default, I think, the 'Close Window' (CMD+W) menu item is bound to the action 'performClose' on first-responder. If you remove this binding and instead bind to a custom IBAction on your application delegate or main window controller, it allows you to conditionally call the close method of the current key-window if it is not matching the instance that you want to keep alive.
#property (strong, nonatomic) MyWindowController *unstoppable;
-(IBAction)killActiveWindow:(id)sender
{
NSWindow *keyWindow = [[NSApplication sharedApplication]keyWindow];
if ([keyWindow isNotEqualTo: unstoppable.window]){
NSLog(#" CMD+W Closing Window %#",keyWindow.title);
[keyWindow close];
}
}
Right-clicking the Exit icon yields an empty window. Can't Ctrl-drag a connection to any IB elements or corresponding source files. Docs give no love. Doesn't appear in nib files, only storyboards. My assumption is that it's a corollary to segues, but I don't see any new methods to back it up. Anyone?
I had a hard time following the accepted answer so here is more detail.
Given the photo below on view controller C you can "exit" back to any view controller in the segue path.
ViewController A you can write:
- (IBAction)done:(UIStoryboardSegue *)segue {
// Optional place to read data from closing controller
}
ViewController B you can write:
- (IBAction)back:(UIStoryboardSegue *)segue {
// Optional place to read data from closing controller
}
ViewController C you control drag from "back" button to the green exit option and select back:
ViewController C you control drag from "done" button to the green exit option and select done:
Note: Even though the methods are on other view controllers they show up for the ViewController C's exit. Control dragging and selecting a method defines which ViewController to unwind to.
There's a lot of information in the WWDC video "Session 407 - Adopting Storyboards in your App."
Say you have two view controllers linked by a segue. Implement the following exit action on the first view controller:
- (IBAction)done:(UIStoryboardSegue *)segue {
NSLog(#"Popping back to this view controller!");
// reset UI elements etc here
}
Then, on Storyboard scene for the second view controller, Ctrl-drag from a UI element, such as a button, to the exit icon at the bottom of this view controller. The done: action you added to the code of the first controller will appear as an option. Now, activating the button you Ctrl-dragged to the exit icon will pop back to the first view controller and maintain its original state (ie UI elements such as text input supposedly still intact).
As addition to Eric answer here is how it works with swift:
The function you add to the destination controller looks like:
#IBAction func backFromOtherController(segue: UIStoryboardSegue) {
NSLog("I'm back from other controller!")
}
I have a Cocoa app with a table view and a few other controls. When the app launches and the window is shown, a blue focus ring is drawn around the table view.
How can I get rid of that focus ring? I'd like nothing to have the focus when the window first shows.
The window has initialFirstResponder binding that shows which control will be active when the window becomes active. Change the initialFirstResponder or adjust tableview settings in interface builder to hide the focus ring
The best way I've found of stopping any of the controls from being the first responder when a window is first displayed is in the window controller:
Swift 3:
class YourWindowController: NSWindowController {
override func windowDidLoad() {
super.windowDidLoad()
// Wait a frame before setting the first responder to be the window itself.
// We can't just set it right now, because if the first responder is set
// to the window now the system just interprets that as meaning that we
// want the default behavior where it automatically selects a view to be
// the first responder.
DispatchQueue.main.async {
window!.makeFirstResponder(nil)
}
}
}
It's messy, and sometimes when the window loads you see the focus ring starting to appear on one of the controls for one frame, but I haven't found a better way yet.
I am trying to write a Mac application which runs in the menubar, which when clicked, displays an iOS-like popover. Similar to Flexibit's Fantastical, or The Iconfactory's Take Five.
I am using INPopoverController which seems to work great.
My problem is that when the user clicks on anything in the popover view, the popover becomes the key window. Is there a way to stop this from happening?
In INPopoverWindow:
- (BOOL)canBecomeKeyWindow
{
return YES;
}
means that the popover can become a key window. You can either change it to return NO, or subclass INPopoverWindow and override that method to return NO.
I have the following situation:
There is one custom view inside of the first window that contains a NSTableView.
There is a second window which acts as a form for the current object behind the selection of the table view inside the first window.
Some more details:
I’ve implemented the setDoubleAction: behavior in the NSTableView that basically opens the second window
The table view is bound to the arrangedObjects of an (subclassed) NSArrayController
The specific interface elements in the second window (that opens on double click) are bound to the selection of the NSArrayController
I’ve subclassed the NSArrayController and modified the following functions:
At first I changed addObject: (or add:, this doesn’t really matter):
- (void)addObject:(id)object
{
[super addObject:object];
[self saveTemplatesToDisk];
}
Then I changed remove:
- (void)remove:(id)sender
{
[super remove:sender];
[self saveTemplatesToDisk];
}
The action that opens the preference sheet is just a one liner: [NSApp beginSheet:preferenceWindow modalForWindow:[_preferenceView window] modalDelegate:nil didEndSelector:NULL contextInfo:NULL];
The code that get’s executed after the user presses the return key / OK button isn’t complicated either.
It just saves the current content of the array controller to disk and closes the second window:
- (IBAction)endPreferenceSheet:(id)sender
{
[templateArrayController saveTemplatesToDisk];
[NSApp endSheet:preferenceWindow];
[preferenceWindow orderOut:nil];
}
Finally here’s my problem / question
When I press the return key in the second window, the window closes, the data gets saved and the NSTableView gets properly reloaded without any further interaction. But when I press on the OK button with the mouse, nothing seems to happen. Here’s the interesting part: when I now select another row in the table view in the first window after the second window disappeared, the previously selected row (read: the updated object) gets properly reloaded and displays the content I’ve edited in the second window that has interface elements bound to the selection.
Basically my implementation works, but not when the user uses the mouse to close the window.
The only difference I can spot is the currentEvent, but I can’t imagine how this could change the behavior of this simple application.
When I press the OK button with the mouse: NSEvent: type=LMouseUp loc=(563.055,30.1484) time=58450.2 flags=0 win=0x0 winNum=5371 ctxt=0x0 evNum=8093 click=1 buttonNumber=0 pressure=0 subtype=NSTabletPointEventSubtype deviceID=0 x=19469 y=15838 z=0 buttons=0x0 pressure=0.000000 tilt={0.453108, -0.140629} rotation=0.000000 tangentialPressure=0.000000 vendor1-3=(0, 0, 0)
When I press return: NSEvent: type=KeyDown loc=(0,300) time=58474.8 flags=0 win=0x0 winNum=5371 ctxt=0x0 chars="
" unmodchars="
" repeat=0 keyCode=36
Any ideas how I can solve my problem?
Remember the responder chain: The keyboard event starts at the first responder, which will be the field editor, then (if that doesn't handle it) goes to the next responder, which will be the table view. The mouse event goes directly to the view that the user clicked on, which is the button.
So, the difference is that the table view handles the return event, but it never sees the mouse event. When the user clicks, you simply get an action message from the button—the table view remains in in editing mode.
The solution is to have the action method tell the controller to commit editing before proceeding with the actual action.