Keary, I am checking whether or not the user is trying to edit multiple items in my delegate's - (BOOL)control:(NSControl *)control textShouldEndEditing:(NSText *)fieldEditor
If the choose to not complete editing, I should be able to discard editing on the bound NSArrayController, but my control still has focus after calling discardEditing. Thoughts? Patrick On Jan 2, 2013, at 9:10 PM, Keary Suska wrote: > On Jan 2, 2013, at 7:29 PM, Patrick Cusack wrote: > >> Ok, I do have a delegate for my controls and am currently using >> control:textShouldEndEditing:. If I return no, however, my control still has >> focus, and I can't think of a programmatic way to lose focus without >> committing changes. > > You would call -discardEditing on the NSObjectController that should be > managing the detail interface. > >> On Jan 2, 2013, at 5:20 PM, Keary Suska wrote: >> >>> On Jan 2, 2013, at 9:59 AM, Patrick Cusack wrote: >>> >>>> Sorry, I might not be clear. I have a table view that is bound to an >>>> NSArraryController. I want users to be able to edit single and multiple >>>> selections from a detail view that has NSTextfields and ComboBoxes. There >>>> are occasions where users forget that they have selected multiple items >>>> and proceed to edit cues, unaware that they are actually mutating more >>>> than one row of data. When an editor tabs into a control like the >>>> NSTextField or NSComboBox, I want to give them a chance to discard >>>> editing. I can easily deduce that multiple items in my NSArrayController >>>> are selected, throw an NSRunAlert, and give users an option to make a >>>> choice, but at that point, I have already entered focus into the control >>>> and any attempt to leave that control will still change the selected >>>> items. I tried overriding acceptsFirstResponder, and conducting my test in >>>> that selector, but acceptsFirstResponder gets called more than once, and >>>> then the control passes focus onto the next control in the kew view loop. >>>> Really what I want to a accomplish is to discard the editing and resign >>>> focus from the control. >>> >>> No--my error--you did say that you are editing in a detail interface. The >>> only thing I can think of is to register a controller as the delegate for >>> the detail fields, then you have access to control:textShouldEndEditing: >>> and friends (look for the NSControlTextEditingDelegate protocol in the >>> docs). All NSControl subclasses use these so it should work for your combo >>> boxes as well. >>> >>>> On Jan 2, 2013, at 6:41 AM, Keary Suska wrote: >>>> >>>>> On Jan 2, 2013, at 12:05 AM, livinginlosange...@mac.com wrote: >>>>> >>>>>> I have an application where a user can select multiple rows of data from >>>>>> an NSArrayController and edit those rows from a detail view. Now, there >>>>>> are cases where users have inadvertently changed the values for multiple >>>>>> rows of data when they did not intend to. How can I warn a user when >>>>>> they enter a texfield or nscombobox that they are about to edit multiple >>>>>> rows of data and gracefully give them a way to back out? I noticed that >>>>>> there is no way to discard editing when in a textfield. Is that the >>>>>> case? I am using the control: textShouldEndEditing: delegate method >>>>>> which allow me to get 90% of the way there, but the textfield retains >>>>>> focus, and I can not tab out of the field without getting my warning. >>>>>> Ideally, pressing "esc" should allow me to discard any editing and make >>>>>> the field lose focus. >>>>> >>>>> IIRC you can set a delegate to the table view and implement >>>>> tableView:shouldEditTableColumn:row:, and you should be able to prevent >>>>> editing from even starting until the user has confirmed. > > > Keary Suska > Esoteritech, Inc. > "Demystifying technology for your home or business" > _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
