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Thu, 03/25/2010 - 11:15

duddy67

Joined: 31/10/2009

Posts: 56

Detect if the backspace key is hold down ?

Hi,

Here's my plugin's code wich detect if backspace key is pressed:

var onKey = function( event )
 {
    switch ( event.data.keyCode )
         {
          case 8 :               // BACKSPACE
      
          //code...
     }
 };


CKEDITOR.plugins.add('detectbackspace',
{
    init: function(editor)
    {
        var pluginName = 'detectbackspace';
   editor.on( 'key', onKey, editor );
    }

});

It works when backspace key is pressed then released (ex: when I delete a string character by character).
But it doesn't work anymore if I hold down the backspace key (onKeyPressed).

How can I detect if the backspace key is hold down ?

PLease help.

Fri, 03/26/2010 - 10:00

duddy67

Joined: 31/10/2009

Posts: 56

Re: Detect if the backspace key is hold down ?

No response... as usual ! :mrgreen:

So can someone tells me how to get the type of an event (event.type) with CKeditor API ?

Fri, 03/26/2010 - 11:59

alfonsoml

Joined: 31/12/2006

Posts: 3735

Re: Detect if the backspace key is hold down ?

Use the $ to get the native event: http://docs.cksource.com/ckeditor_api/s ... ent.html#$

Sat, 03/27/2010 - 09:26

duddy67

Joined: 31/10/2009

Posts: 56

Re: Detect if the backspace key is hold down ?

Thanks for your answer.

But please could you show me how to get the native event, I'm lost.
I spend 3 days on it (check the doc) but I still don't know how to make
it works in my plugin.

Thanks for advance.

Sat, 03/27/2010 - 14:19

duddy67

Joined: 31/10/2009

Posts: 56

Re: Detect if the backspace key is hold down ?

I tried this in my code:

event = new CKEDITOR.dom.event(event);

and the available methods of event.$ are:

name value :key
sender value :[object Object]
editor value :[object Object]
data value :[object Object]
listenerData value :undefined
stop value :function () {
    d = true;
}
cancel value :function () {
    f = true;
}
removeListener value :function () {
    l.removeListener(d, e);
}

What method is supposed to give me the type of the event ?
Are you sure it's possible ?

Sat, 03/27/2010 - 22:54

alfonsoml

Joined: 31/12/2006

Posts: 3735

Re: Detect if the backspace key is hold down ?

I think that you are highly confused. The ckeditor "key" event is a syntetic event, it's not a wrapper for a native event (although it's fired based on one) and calling the constructor of CKEDITOR.dom.event won't magically add the properties of a native dom event to an object.

You need to setup your native listener and then you'll be able to read the event.$

Sun, 03/28/2010 - 09:25

duddy67

Joined: 31/10/2009

Posts: 56

Re: Detect if the backspace key is hold down ?

As you said I'm highly confused and lost, that's why I'm asking for help.
I tried but I really don't know how to setup my native listener (too few indications in the doc).
So could you please give me a piece of code or something that makes me get it ?

Thanks for advance.

Tue, 03/30/2010 - 11:54

duddy67

Joined: 31/10/2009

Posts: 56

Re: Detect if the backspace key is hold down ?

I get some clues here:

http://unixpapa.com/js/key.html

The tip is when a key is hold down there's an auto-repeat, but I saw
that in FF under Linux there's no auto-repeat :?: I'm too much confused ! (I'm under Linux/FF).
So it seems really tricky.

Can someone pleaaaase help me to detect when the backspace key is holding down ???