Re: NSTextField sendActionOn:
I finally had a breakthrough! I'm not sure it's the "best" solution but it
works and hopefully will be instructive for others trying to do the same thing
connection views. There's a lot of steps (which is why I think it may not be
the "best") so I'll try to be as clear as possible.
1) when a user clicks their mouse in my subclasses NSTextField I send this
action:
BOOL theResult = [NSApp sendAction:@selector(notifyViewOfMouseDown) to:nil
from:nil];
2) my subclassed view has a method that executes when this action is sent:
- (void)notifyViewOfMouseDown {
NSDictionary *d = [NSDictionary dictionaryWithObject:self
forKey:@"view"];
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc postNotificationName:SRVIsSelectedChanged object:self userInfo:d];
}
This allows me to package up the view and send it along in a notification.
Packaging the view is **key** here because this is the view that needs to be
selected. My subclassed NSCollectionView is registered as an observer of this
notification. When it receives this notification I execute this code to update
the array controller with a new selectedObject
- (void)handleViewSelections:(NSNotification *)note {
View *v = [[note userInfo] objectForKey:@"view"];
int limit = [[self content] count];
for (int i = 0; i < limit; i++) {
NSCollectionViewItem *item = [self itemAtIndex:i];
View *thisView = [item view];
if ([thisView isEqual:v]) {
[item setSelected:YES]; //my subclassed
NSCollectionViewItem knows how to set itself as selected and update the array
controller
}
}
}
Boy, I'm glad I figured that out! I'm sure there are a lot more experienced
programmers than me out there so if anyone can think of a way I can do this
without so many steps I'd be glad to learn from them.
Jonathan, thanks for your suggestion. My subclassed NSTextField didn't respond
to superview. I wish it did, it would have saved me a step. To adapt your
solution I'd need to register each newly created view in my NSCollectionView
link that back to the NSCollectionViewItem that has the code to set itself as
selected and to update the array controller. I had to delete your reply from
this message to make it thru the listserve size
limit.___
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Re: NSTextField sendActionOn:
On 17 Jan 2010, at 16:30, Brad Stone wrote:
> Here's why I need this - I've been trying to solve this problem for 2 weeks!
>
> This issue all revolves around a NSCollectionView. Each CollectionViewItem
> has a view containing a NSTextField, NSDatePicker, NSButton (checkbox), and
> an NSLevelIndicator. The selection index of my CollectionView is binded to
> the selection index of an NSArrayController. The problem I having is if the
> user performs a mouseDown in the TextField I need to update the
> selectionIndex of the array controller so the CollectionView will show the
> appropriate view as selected. Without this, the wrong view is selected.
> Here's a quick example:
>
> 1) click the add button twice to create two items in my collectionView.
> Items with index 0 and 1. Since item 1 was the last one created, it is
> selected (I have it showing a grey box).
> 2) click your mouse into the text field of the item at index 0 and start
> typing
>
> The user would expect item 0 to be the selected item but it's not. The array
> controller still thinks item 1 is selected. It needs to be told otherwise.
> If the user pressed the remove button item 1 would be removed.
>
> This is why I want to fire an action when the user inserts into the text
> field (just like I do when the user clicks the checkbox). I want to change
> the selectedObject in the array controller. The problem I'm having with
> subclassing the NSTextField is I can't figure out how to get the
> CollectionViewItem from the subclassed TextField.
Does -superview not do the trick?
Sometimes when I need to activate views on mouse clicks I use the following
approach.
Subclass NSWindow and register the views I need click detection in with
NSWindow - addClickView:
In NSWindow -sendEvent: I check to see if we have a hit and dispatch a message
on the view
Might help you out.
@interface MGSClickWindow : NSWindow {
NSHashTable *_clickViews;
}
- (void)addClickView:(NSView *)aView;
@end
@implementation MGSClickWindow
/*
NSWindow designated initialiser
*/
- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)windowStyle
backing:(NSBackingStoreType)bufferingType defer:(BOOL)deferCreation
{
if ((self = [super initWithContentRect:contentRect
styleMask:windowStyle backing:bufferingType defer:deferCreation])) {
_clickViews = [NSHashTable hashTableWithWeakObjects];
}
return self;
}
/*
add a click view
click view must be a sub view of the NSWindow contentView
*/
- (void)addClickView:(NSView *)aView
{
if ([aView isDescendantOf:[self contentView]] && [aView
respondsToSelector:@selector(subviewClicked:)]) {
// _clickViews will maintain a weak ref to aView so we don't
need
// to remove it
[_clickViews addObject:aView];
}
}
/*
send event
This action method dispatches mouse and keyboard events sent to the window by
the NSApplication object.
*/
- (void)sendEvent:(NSEvent *)event
{
// look for mouse down
if ([event type] == NSLeftMouseDown) {
// look for deepest subview
NSView *deepView = [[self contentView] hitTest:[event
locationInWindow]];
if (deepView) {
for (NSView *aClickView in [_clickViews allObjects]) {
if ([deepView isDescendantOf:aClickView]) {
[(id)aClickView
subviewClicked:deepView];
break;
}
}
}
}
[super sendEvent:event];
}
@end
> If I could I could then execute my method to update the ArrayController. I
> tried creating an IBOutlet to the CollectionView, the ArrayController and the
> CollectionViewItem but they all come back as nil. I think I read here that
> IBOutlets don't work in this instance. I also tried setting up my own
> Notification but the CollectionViewItem never receives it (other objects do).
>
> This is tricky, any help you may have would be appreciated.
>
> Brad
>
>
>
> On Jan 17, 2010, at 6:12 AM, Graham Cox wrote:
>
>>
>> On 17/01/2010, at 3:56 PM, Brad Stone wrote:
>>
>>> I was able to capture the mouseDown event in the field but only in a
>>> subclass which is causing me problems elsewhere.
>>
>>
>> Indeed, a mouse click is not the only reason a field might become focused -
>> the user could tab into it as well.
>>
>> Overriding -becomeFirstResponder should do it.
>>
>> Taking a step back though, WHY do you need to get notified here? What are
>> you trying to do? There might be a better way.
>>
>> --Graham
>>
>>
>>
>>
>
> ___
>
> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>
> Please do not post admi
Re: NSTextField sendActionOn:
Here's why I need this - I've been trying to solve this problem for 2 weeks! This issue all revolves around a NSCollectionView. Each CollectionViewItem has a view containing a NSTextField, NSDatePicker, NSButton (checkbox), and an NSLevelIndicator. The selection index of my CollectionView is binded to the selection index of an NSArrayController. The problem I having is if the user performs a mouseDown in the TextField I need to update the selectionIndex of the array controller so the CollectionView will show the appropriate view as selected. Without this, the wrong view is selected. Here's a quick example: 1) click the add button twice to create two items in my collectionView. Items with index 0 and 1. Since item 1 was the last one created, it is selected (I have it showing a grey box). 2) click your mouse into the text field of the item at index 0 and start typing The user would expect item 0 to be the selected item but it's not. The array controller still thinks item 1 is selected. It needs to be told otherwise. If the user pressed the remove button item 1 would be removed. This is why I want to fire an action when the user inserts into the text field (just like I do when the user clicks the checkbox). I want to change the selectedObject in the array controller. The problem I'm having with subclassing the NSTextField is I can't figure out how to get the CollectionViewItem from the subclassed TextField. If I could I could then execute my method to update the ArrayController. I tried creating an IBOutlet to the CollectionView, the ArrayController and the CollectionViewItem but they all come back as nil. I think I read here that IBOutlets don't work in this instance. I also tried setting up my own Notification but the CollectionViewItem never receives it (other objects do). This is tricky, any help you may have would be appreciated. Brad On Jan 17, 2010, at 6:12 AM, Graham Cox wrote: > > On 17/01/2010, at 3:56 PM, Brad Stone wrote: > >> I was able to capture the mouseDown event in the field but only in a >> subclass which is causing me problems elsewhere. > > > Indeed, a mouse click is not the only reason a field might become focused - > the user could tab into it as well. > > Overriding -becomeFirstResponder should do it. > > Taking a step back though, WHY do you need to get notified here? What are you > trying to do? There might be a better way. > > --Graham > > > > ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTextField sendActionOn:
On 17/01/2010, at 3:56 PM, Brad Stone wrote: > I was able to capture the mouseDown event in the field but only in a subclass > which is causing me problems elsewhere. Indeed, a mouse click is not the only reason a field might become focused - the user could tab into it as well. Overriding -becomeFirstResponder should do it. Taking a step back though, WHY do you need to get notified here? What are you trying to do? There might be a better way. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTextField sendActionOn:
On 17 Jan 2010, at 04:56, Brad Stone wrote: > I tried that (textDidBeginEditing) but it fires only after the user hits a > key to begin typing, not when they first enter the field (i.e. the action > that makes the focus ring show up). I want to be notified as soon as the > user clicks in the field to get the cursor in there. I was able to capture > the mouseDown event in the field but only in a subclass which is causing me > problems elsewhere. > If subclassing is out (for whatever) and your OS X target is 10.6 then you could try observing NSWindow firstResponder. Subclassing is the way to go though IMHO. Regards Jonathan Mitchell Developer http://www.mugginsoft.com > On Jan 16, 2010, at 3:08 PM, Matthew Lindfield Seager wrote: > >> On Sunday, January 17, 2010, Brad Stone wrote: >>> The best I can do for the NSTextField is bind an action and in, IB, in the >>> TextFieldAttributes set "Action" to "Sent on End Editing" which sends the >>> action after the first character is type. I want the action sent as soon >>> as the field gains focus. >> >> Googling "nstextfield begin editing notification" without the quotes >> takes one straight to the fine manual. See textDidBeginEditing in >> particular. >> >> Hope that is what you are after. >> >> Regards, >> Matt > > ___ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/jonathan%40mugginsoft.com > > This email sent to jonat...@mugginsoft.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTextField sendActionOn:
I tried that (textDidBeginEditing) but it fires only after the user hits a key to begin typing, not when they first enter the field (i.e. the action that makes the focus ring show up). I want to be notified as soon as the user clicks in the field to get the cursor in there. I was able to capture the mouseDown event in the field but only in a subclass which is causing me problems elsewhere. On Jan 16, 2010, at 3:08 PM, Matthew Lindfield Seager wrote: > On Sunday, January 17, 2010, Brad Stone wrote: >> The best I can do for the NSTextField is bind an action and in, IB, in the >> TextFieldAttributes set "Action" to "Sent on End Editing" which sends the >> action after the first character is type. I want the action sent as soon as >> the field gains focus. > > Googling "nstextfield begin editing notification" without the quotes > takes one straight to the fine manual. See textDidBeginEditing in > particular. > > Hope that is what you are after. > > Regards, > Matt ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTextField sendActionOn:
On Sunday, January 17, 2010, Brad Stone wrote: > The best I can do for the NSTextField is bind an action and in, IB, in the > TextFieldAttributes set "Action" to "Sent on End Editing" which sends the > action after the first character is type. I want the action sent as soon as > the field gains focus. Googling "nstextfield begin editing notification" without the quotes takes one straight to the fine manual. See textDidBeginEditing in particular. Hope that is what you are after. Regards, Matt ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSTextField sendActionOn:
I have an NSTextField and an NSDatePicker on a view. As soon as the user clicks into either on (and before they type anything) I want to send an action. I thought I'd use sendActionOn: but I can't get it to work. The best I can do for the NSTextField is bind an action and in, IB, in the TextFieldAttributes set "Action" to "Sent on End Editing" which sends the action after the first character is type. I want the action sent as soon as the field gains focus. Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
