[Sugar-devel] [DESIGN] Double clicks

[Edward Cherlin]

On Sat, Mar 6, 2010 at 07:39, Walter Bender <walter.bender at gmail.com> wrote:
> On Sat, Mar 6, 2010 at 6:34 AM, Sascha Silbe
> <sascha-ml-ui-sugar-devel at silbe.org> wrote:
>> On Sat, Mar 06, 2010 at 10:27:37AM +0000, Aleksey Lim wrote:
>>
>>> But looks like sugar doesn't use double clicks somewhere, was it done by
>>> intention e.g. double clicks are too complicated to reproduce?
>>
>> Please don't require multi-clicks (double, triple) anywhere (or for that
>> matter, any operation where timing is critical).
[snip]
>> CU Sascha
>>
>> --
>> http://sascha.silbe.org/
>> http://www.infra-silbe.de/
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>
> I agree with Sascha that double clicking should be avoided... Perhaps
> kids can learn it, but we will immediately make the interface unusable
> for the elderly.

Double- and triple-clicking are in a number of Sugar activities now,
with no explanation. Triple-click usually selects a whole line or a
whole paragraph. Many adults are unaware that this function is
available in their word processors or e-mail editors. For more on such
issues, see

http://wiki.sugarlabs.org/go/The_Undiscoverable

> We already use modifier keys in the interface to switch to an advanced
> behavior. Why not the usual shift and ctrl clicks?

I don't mind which mouse behavior you use, as long as you provide a
way to discover it. For example, you can put the action in a menu item
along with a hint giving the keyboard shortcut. For example, Firefox
puts this on the Edit menu along with many others.

Undo          Ctrl+Z

This is not strictly correct, since this notation sometimes means
Shift+Ctrl+z. The actual shortcut for Undo in many programs is Ctrl+z.

The most common shortcut for Select All is Ctrl+a.

> -walter
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>> dkmSiCW3rRXAg8kFJPDa4Yc6T+MoeissRCO1+oa0qqbZq7yhytPrT81X4P7f9m+d
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>> =XUwk
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>>
>
>
>
> --
> Walter Bender
> Sugar Labs
> http://www.sugarlabs.org
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>



-- 
Edward Mokurai (默雷/धर्ममेघशब्दगर्ज/دھرممیگھشبدگر ج) Cherlin
Silent Thunder is my name, and Children are my nation.
The Cosmos is my dwelling place, the Truth my destination.
http://www.earthtreasury.org/