Resetting SCIM when using mouse to move cursor

[Anuradha Ratnaweera-2]

Hi there,

I need to do some resetting (e.g.: commit uncommitted preedit strings)
when the cursor location changes as the result of a mouse click.

Using focus_{in,out} won't do, because the user may not leave the
active window, but only click another location of the same "text
area".

I tried using various virtual functions in IMEngineInstanceBase class,
but non of them I tested were triggered as the result of a mouse
click.  I know handling mouse clicks is not SCIM's concern, but the
change of context by cursor moving different location in text is
important to a SCIM IM module (Sinhala) I maintain.  Right now I have
a hack, but want to get rid of it.

Changing semantics (e.g.: ask users to commit before using the mouse)
is not an option, as this IM is very popular, and I don't want to
disappoint any of the present users, including myself. ;-)

Any thoughts?  Thanks in advance!

        Anuradha
--
http://www.sayura.net/anuradha/

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[Choe Hwanjin]

On Sun, Apr 27, 2008 at 1:13 AM, Anuradha Ratnaweera
<anuradha@...> wrote:
> Hi there,

Hi

>  I need to do some resetting (e.g.: commit uncommitted preedit strings)
>  when the cursor location changes as the result of a mouse click.
>
>  Using focus_{in,out} won't do, because the user may not leave the
>  active window, but only click another location of the same "text
>  area".
>
>  I tried using various virtual functions in IMEngineInstanceBase class,
>  but non of them I tested were triggered as the result of a mouse
>  click.  I know handling mouse clicks is not SCIM's concern, but the
>  change of context by cursor moving different location in text is
>  important to a SCIM IM module (Sinhala) I maintain.  Right now I have
>  a hack, but want to get rid of it.

Korean input method has the same problem.

It's the problem of applications.
Each application is responsible for calling "reset" method when users
moves the caret or click
the mouse button. But many of them do not.
So we have to report it to the app's bug tracker as a bug.

>  Changing semantics (e.g.: ask users to commit before using the mouse)
>  is not an option, as this IM is very popular, and I don't want to
>  disappoint any of the present users, including myself. ;-)
>
>  Any thoughts?  Thanks in advance!
>
>         Anuradha
>  --
>  http://www.sayura.net/anuradha/
>
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[Choe Hwanjin]

On Sun, Apr 27, 2008 at 12:07 PM, Choe Hwanjin <choe.hwanjin@...> wrote:

> On Sun, Apr 27, 2008 at 1:13 AM, Anuradha Ratnaweera
>  <anuradha@...> wrote:
>  > Hi there,
>
>  Hi
>
>
>  >  I need to do some resetting (e.g.: commit uncommitted preedit strings)
>  >  when the cursor location changes as the result of a mouse click.
>  >
>  >  Using focus_{in,out} won't do, because the user may not leave the
>  >  active window, but only click another location of the same "text
>  >  area".
>  >
>  >  I tried using various virtual functions in IMEngineInstanceBase class,
>  >  but non of them I tested were triggered as the result of a mouse
>  >  click.  I know handling mouse clicks is not SCIM's concern, but the
>  >  change of context by cursor moving different location in text is
>  >  important to a SCIM IM module (Sinhala) I maintain.  Right now I have
>  >  a hack, but want to get rid of it.
>
>  Korean input method has the same problem.
>
>  It's the problem of applications.
>  Each application is responsible for calling "reset" method when users
>  moves the caret or click
>  the mouse button. But many of them do not.
>  So we have to report it to the app's bug tracker as a bug.
>
>  >  Changing semantics (e.g.: ask users to commit before using the mouse)
>  >  is not an option, as this IM is very popular, and I don't want to
>  >  disappoint any of the present users, including myself. ;-)
>  >

So what kind of application did you test?

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[Dushara]

I've got the same problem for the scim wijesekera IMEngine. I've
tested with Kate.

Dushara


On 27/04/2008, Choe Hwanjin <choe.hwanjin@...> wrote:

> On Sun, Apr 27, 2008 at 12:07 PM, Choe Hwanjin <choe.hwanjin@...> wrote:
>  > On Sun, Apr 27, 2008 at 1:13 AM, Anuradha Ratnaweera
>  >  <anuradha@...> wrote:
>  >  > Hi there,
>  >
>  >  Hi
>  >
>  >
>  >  >  I need to do some resetting (e.g.: commit uncommitted preedit strings)
>  >  >  when the cursor location changes as the result of a mouse click.
>  >  >
>  >  >  Using focus_{in,out} won't do, because the user may not leave the
>  >  >  active window, but only click another location of the same "text
>  >  >  area".
>  >  >
>  >  >  I tried using various virtual functions in IMEngineInstanceBase class,
>  >  >  but non of them I tested were triggered as the result of a mouse
>  >  >  click.  I know handling mouse clicks is not SCIM's concern, but the
>  >  >  change of context by cursor moving different location in text is
>  >  >  important to a SCIM IM module (Sinhala) I maintain.  Right now I have
>  >  >  a hack, but want to get rid of it.
>  >
>  >  Korean input method has the same problem.
>  >
>  >  It's the problem of applications.
>  >  Each application is responsible for calling "reset" method when users
>  >  moves the caret or click
>  >  the mouse button. But many of them do not.
>  >  So we have to report it to the app's bug tracker as a bug.
>  >
>  >  >  Changing semantics (e.g.: ask users to commit before using the mouse)
>  >  >  is not an option, as this IM is very popular, and I don't want to
>  >  >  disappoint any of the present users, including myself. ;-)
>  >  >
>
>
> So what kind of application did you test?
>
>
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[Anuradha Ratnaweera-2]

On Sun, Apr 27, 2008 at 8:39 AM, Choe Hwanjin <choe.hwanjin@...> wrote:
>
>  So what kind of application did you test?

I tested kate and gedit.  This is bad enough, because we are talking
about GTK and QT.

        Anuradha
--
http://www.sayura.net/anuradha/

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[Jens Petersen]

Anuradha Ratnaweera さんは書きました:
> On Sun, Apr 27, 2008 at 8:39 AM, Choe Hwanjin <choe.hwanjin@...> wrote:
>>  So what kind of application did you test?
>
> I tested kate and gedit.  This is bad enough, because we are talking
> about GTK and QT.

It would be good if you could detail the OS and versions of the software
you are testing (in particular the scim and KDE versions).

Jens

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[Choe Hwanjin]

On Mon, Apr 28, 2008 at 8:41 AM, Jens Petersen <petersen@...> wrote:

> Anuradha Ratnaweera さんは書きました:
>
> > On Sun, Apr 27, 2008 at 8:39 AM, Choe Hwanjin <choe.hwanjin@...> wrote:
>  >>  So what kind of application did you test?
>  >
>  > I tested kate and gedit.  This is bad enough, because we are talking
>  > about GTK and QT.
>
>  It would be good if you could detail the OS and versions of the software
>  you are testing (in particular the scim and KDE versions).

I've just tested it with scim 1.4.6 and gedit 2.18.2 and scim-hangul
engine 0.3.1.
And gedit works fine.
When I click mouse button to move the cursor, the preedit string is committed.

But kate doesn't.
Maybe the qt or kate itself has a bug on implementation of input
method interaction.
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[Anuradha Ratnaweera-2]

On Mon, Apr 28, 2008 at 5:11 AM, Jens Petersen <petersen@...> wrote:
>
>  It would be good if you could detail the OS and versions of the software
> you are testing (in particular the scim and KDE versions).

Here are the versions of software I tested.

BTW, I am interested in not only preedit string committing, but to
catch the event of cursor changing by a mouse click.  Some of them
*may* auto commit preedit strings.

All these software may have additional patches, as I am using stock
versions coming with Debian Lenny.

scim 1.4.7
gtk 2.12.9
qt 3.3.8
gedit 2.22.1
kate 3.5.9
KDE 3.5.9

OS: Debian GNU/Linux Lenny with all the recent updates.

        Anuradha
--
http://www.sayura.net/anuradha/

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