Re: NSBrowser and double click
Re: NSBrowser and double click
- Subject: Re: NSBrowser and double click
- From: Corbin Dunn <email@hidden>
- Date: Mon, 26 Jul 2010 12:48:05 -0700
On Jul 26, 2010, at 12:32 PM, mark wrote:
>> On 25/07/2010, at 9:00 AM, mark wrote:
>>
>>> A problem which is driving me spastic:
>>> I have an NSBrowser that allowes multiple selection.
>>> When I double click one of the selected items, all other selected items deselect.
>>> I have set the doubleaction and action methods and correct target. These are called AFTER the deselection.
>>> I have tried to override doClick and that doesn't prevent the deselection.
>>> Any ideas?
>>
>> In general this is the expected behaviour. Most stuff that handles multiple selection doesn't wait to see if a click is going to end up as the first of a double-click, and so processes the first click in a straightforward way. Typically, this is to deselect everything except what was clicked (unless modifier keys are down that might extend or flip the selection). On the second click, the double-click is detected and the double action triggered.
>
> How does the Finder do it?
It uses the "item based" browser API in 10.6, which behaves correctly. The "matrix based" browser has the bug you mentioned.
corbin
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