[jawsscripts] Re: Does any event trigger when you use the quick nav keys?
- From: chad.foster@xxxxxxxxxx
- To: jawsscripts@xxxxxxxxxxxxx
- Date: Sun, 9 Mar 2008 17:13:33 -0400
You will need to insert your plugin script file as the default IE
script source and binary files, then use the renamed shipping FS IE
files.
So your files will be named "Internet Explorer.jss" and "Internet
Explorer.jsb," and you can rename the shipping IE script files to
something along the lines of "FS_Internet Explorer.jss" and
"FS_Internet Explorer.jsb."
In your custom-written IE script file, insert the following line:
Use "FS_Internet Explorer.jsb"
Then your KeyPressedEvent copy will take priority over the shipping IE
copy, and you will need to call the shipping IE KeyPressedEvent in
circumstances requiring no custom processing.
You can write a batch file to do all the file renaming for you if it
needs to be done routinely e.g. upgrades of JAWS.
--Chad
On 3/9/08, Bryan Garaventa <bgaraventa11@xxxxxxxxxxxxxx> wrote:
> I'm not sure if this behavior is a bug in my version of JAWS9, or is
> standard behavior with IE7, but I cannot get KeyPressedEvent to fire.
>
> The scripts need to be set up as an external script set, so I'm adding them
> to the default IE7 scripts using the usual line
> use "ScriptPlugin.jsb"
>
> Due to the nature of the scripts, I won't be able to depend on a
> modification of the default KeyPressedEvent function within the default IE
> script set. The plugin that I'm making is going to be distributed
> publically, and will be compatible with several different JAWS versions,
> including IE6.
>
> I see that there is a KeyPressedEvent function within the default IE7 script
> file, would this be conflicting with mine?
>
> Also, I've tried the following code blocks, which would solve the problem if
> they worked...
>
> Script FocusToNextField ()
> PerformScript FocusToNextField()
> let g_i_isWithinTarget = isTargetObject ()
> EndScript
> Script FocusToPriorField ()
> PerformScript FocusToPriorField()
> let g_i_isWithinTarget = isTargetObject ()
> EndScript
>
> Both of the above scripts are also within the default IE7 script file, so
> I'm wondering if there is a conflict.
>
> Strangely though, the following script blocks work fine, even though they
> too are also within the default IE7 script file as well...
>
> Script SayNextLine ()
> PerformScript SayNextLine()
> let g_i_isWithinTarget = isTargetObject ()
> EndScript
> Script SayPriorLine ()
> PerformScript SayPriorLine()
> let g_i_isWithinTarget = isTargetObject ()
> EndScript
>
> So, leading me to conclude, I really have no idea what's going on...
>
>
> ----- Original Message -----
> From: "Dennis Brown" <DennisTBrown@xxxxxxxxxxx>
> To: <jawsscripts@xxxxxxxxxxxxx>
> Sent: Sunday, March 09, 2008 9:20 AM
> Subject: [jawsscripts] Re: Does any event trigger when you use the quick nav
> keys?
>
>
> > Also use a variable that determines if quick nav keys are activated.
> > There is a function and a flag for this, so run the function in
> > FocusChangedEvent to set or unset the global flag, then use that flag as
> > your first step in the condition statement in KeyPressedEvent. That makes
> > it less intrusive on regular keypresses.
> > Also check for FormsMode flag in that same condition so it doesn't
> > activate if entering text in a form field.
> >
> > Thanks,
> > Dennis Brown
> > ----- Original Message -----
> > From: <chad.foster@xxxxxxxxxx>
> > To: <jawsscripts@xxxxxxxxxxxxx>
> > Sent: Sunday, March 09, 2008 10:34 AM
> > Subject: [jawsscripts] Re: Does any event trigger when you use the quick
> > nav keys?
> >
> >
> >> You should insert some logic into KeyPressedEvent to make sure your
> >> logic needs to fire, not just fire your logic every time this event is
> >> fired. So you would want to check for:
> >>
> >> (1) Is the nIsScriptKey parameter variable TRUE or FALSE? You only
> >> want to proceed if it is TRUE.
> >> (2) Is the Virtual PC cursor active? You should proceed if it is TRUE.
> >> (3) Is the KeyPressedEvent being fired from a quicknav key? You will
> >> need to write a function to determine if the current script key is a
> >> quicknav key combination. Note: use the length of the
> >> GetCurrentScriptKey function's return value, along with StringSegment
> >> using the plus sign (+) as the delimiter.
> >> (4) If all of these conditions are met, fire your logic, otherwise,
> >> return.
> >>
> >> Using the order I listed above minimizes overhead, since you are
> >> proceeding in the order of operations that use less memory up-front.
> >>
> >>
> >> --Chad
> >>
> >>
> >> On 3/8/08, Bryan Garaventa <bgaraventa11@xxxxxxxxxxxxxx> wrote:
> >>> This won't work though, the script checks for a condition by querying
> >>> elements on a web page, then when the condition is found, a variable
> >>> object
> >>> for the DOM is stored, and a scheduled event runs to check on the
> >>> condition
> >>> of a specific element every two seconds.
> >>>
> >>> If this script were triggered every time a key is pressed, it would be
> >>> way
> >>> too intrusive and would degrade performance.
> >>>
> >>> It does work if I attach the script to the main navigation commands like
> >>> prior line, next line, paragraph, etc., but the only condition that gets
> >>> past the script handler however, is when the quick nav keys are used to
> >>> jump
> >>> directly into a form element, which doesn't look to trigger any sort of
> >>> event like FocusChangeEvent, or FocusPointMovedEvent.
> >>>
> >>> If there isn't a basic event handler for this, then I guess I'll just
> >>> have
> >>> to attach key assignments to e and f to check for the condition, then
> >>> continue on to the quick nav command. It's a bit clunky like this
> >>> though.
> >>>
> >>>
> >>> ----- Original Message -----
> >>> From: <chad.foster@xxxxxxxxxx>
> >>> To: <jawsscripts@xxxxxxxxxxxxx>
> >>> Sent: Saturday, March 08, 2008 3:53 PM
> >>> Subject: [jawsscripts] Re: Does any event trigger when you use the quick
> >>> nav
> >>> keys?
> >>>
> >>>
> >>> > Bryan, check out KeyPressedEvent.
> >>> >
> >>> >
> >>> > --Chad
> >>> >
> >>> >
> >>> > On 3/8/08, Bryan Garaventa <bgaraventa11@xxxxxxxxxxxxxx> wrote:
> >>> >> I'm trying to attach an event that runs when you use the quick nav
> >>> >> keys
> >>> >> such
> >>> >> as F or E on a web page. Is there any event that deals with this?
> >>> >>
> >>> >> Thanks,
> >>> >>
> >>> >> Bryan
> >>> >>
> >>> >> __________
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> >>> >>
> >>> >>
> >>> >
> >>> >
> >>> > --
> >>> > Chad Foster
> >>> > Access Technology Solutions
> >>> > http://www.GO-ATS.net
> >>> > __________
> >>> > View the list's information and change your settings at
> >>> > //www.freelists.org/list/jawsscripts
> >>> >
> >>>
> >>> __________
> >>> View the list's information and change your settings at
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> >>>
> >>
> >>
> >> --
> >> Chad Foster
> >> Access Technology Solutions
> >> http://www.GO-ATS.net
> >> __________
> >> View the list's information and change your settings at
> >> //www.freelists.org/list/jawsscripts
> >>
> >>
> >
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>
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>
--
Chad Foster
Access Technology Solutions
http://www.GO-ATS.net
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