Bug 193991

Version:            (using KDE 4.2.85)
Installed from:    Ubuntu Packages

Mixing Double and single clicks can be confusing for users.


 We need to examine the actual purpose of the distinction, and be aware of physical limitations and accessibility needs of our users. 

Double clicks are used by default on windows for actions that need a quick sanity check, like "I am not a cat, yes I want to open this file" Another safety feature of mice, is that a double click is not registered when the mouse is moving, and sometimes single clicks are not registered when moving.


 Basically, where an application requests a double click now, we change the code to require the "quick confirm action required" action, which could be a single click for those who prefer that, or unable to double click, or a specific key or phrase being typed into the computer to confirm the action needs to occur. 

Where actions take single clicks to trigger actions, the "safe action triggers" option could be selected.

This selection of what confirmation is required could be configured in each  application, and remain consistent with other parts of the system by using the same actions.  (each application could of course have custom levels too to override the system default, and some would remain hard coded to accept single clicks) 

 These options would be presented in it's own system settings tab under input.

 It would be called "actions" options would include: quick action

safe action  default would be  single click ( with small movement )
quick confirm defaults to  double click (with small movement)
long confirm defaults to  single click with dialog (btw, implementation detail keyboard focus needs to be on cancel!)


Each action/confirm combo could be configured to be exactly the same! this is for people who have great coordination and have to do tasks repeatedly / and or mistakes are cheaper than dirt

here are the options for each action:
 how many clicks " " in how much time" 
 button depression time 
 how much movement (select units, percent of screen, pixels, inches, cm) 
 gesture
 keys pressed simultaneously (link to the keyshorcuts, select the one that needs to be on)
 dialog
  require password?
  delay before key activation hasten The same options are available for the other types of actions. 
  use quick confirm or quick confirm? (must avoid endless loop)
 script

Many of these options would not be visible in the system settings tab. They would be tucked into advanced and or be editable in the configuration file. 

Applications that need to use this are: 
1. kdownloader -- when I download a file, I want to be able to tell it that it needs at least long confirm to run the file on my system, I want it to take a double click and a dialog "are you sure?" (not really, I really just want quick confirm, but the "are you sure" is what windows does" There is no way that I want it to be a quick confirm... ;)

 2. Konqueror -- just to download a file, I want a long confirm...  also closing a tab is a quick confirm, closing a window with multiple tabs could be a quick confirm or a long confirm depending on preference

 3. Dolphin -- I desperately require opening files to be a quick confirm, and selecting items to be a safe action.

 4. System Settings -- I desperately need the system settings browser to be a safe action, because it behaves like a browser, and doesn't do harm by just browsing. (right now it's tied in with the single/double click action, and it's aggravating) 

5. There are more where this distinction is useful. Thank you

See also:
103007
40563