On Aug 7, 2012, at 11:55 PM, Graham Cox wrote:
> According to the release notes for 10.7, NSTableView should now support
> contextual menus at the individual cell level:
>
>> NSTableView/NSOutlineView - Contextual menu support
>>
>> NSTableView and NSOutlineView now have better contextual menu support.
>> Please see the DragNDropOutlineView demo application for an example of how
>> to properly do contextual menus with a TableView.
>>
>> The key thing to note is that clickedRow and clickedColumn will now both be
>> valid when a contextual menu is popped up. In addition, one can dynamically
>> set the popup menu for a particular cell/column in the delegate method
>> willDisplayCell:. NSTableView handles this by properly overriding
>> menuForEvent:, setting the clickedRow/clickedColumn, and calling [NSCell
>> menuForEvent:inRect:ofView] to find the correct menu. If no menu was
>> returned, the menu for the NSTableView will be used. If one right clicks on
>> a selection of items, all the items are highlighted. One should check to see
>> if clickedRow is one of the selected rows, and if it is then do the menu
>> operation on all the selected rows. The clickedRow and clickedColumn
>> properties will still be valid when the action is sent from the NSMenuItem.
>>
>
>
> But when I implement the method in my custom cell, though it's being called
> correctly, -clickedRow and -clickedColumn are returning -1. As a result I
> can't tell which row I right-clicked, so I can't process the menu further.
> Has this change been revoked in 10.8 (which I'm using at the moment)?
>
> Code:
>
> - (NSMenu*) menuForEvent:(NSEvent *)event inRect:(NSRect)cellFrame
> ofView:(NSView *)view
> {
> NSMenu* menu = nil;
>
> if([view respondsToSelector:@selector(delegate)])
> {
> id tvDelegate = [(id)view delegate];
>
> if([view isKindOfClass:[NSTableView class]] && [tvDelegate
> respondsToSelector:@selector(contextualMenuForTableView:tableColumn:row:)])
> {
> NSTableView* tv = (NSTableView*) view;
> NSInteger row, column;
>
> row = [tv clickedRow];
> column = [tv clickedColumn];
I can't speak to why it isn't working as expected but since the "view" argument
is the table view you can use rowsInRect:/rowAtPoint: and
columnIndexesInRect:/columnAtPoint: to derive the location.
HTH,
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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