Home » Eclipse Projects » Remote Application Platform (RAP) » Text widget on Linux with russian characters
| Text widget on Linux with russian characters [message #66982] |
Wed, 19 December 2007 01:09  |
Eclipse User |
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Originally posted by: sergeyaldonin.gmail.com
Hello,
We use RAP (build rap-1.0.1-R-target-3.3-20071207-1851) and we have a
problem.
We use "Text" widget:
Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout());
Text text = new Text(composite, SWT.BORDER);
text.addModifyListener(new ModifyListener() {
public void modifyText(ModifyEvent event) {
System.out.println(">>" + ((Text) event.widget).getText());
}
});
If RAP client started on Linux (we tried Firefox, Opera browsers) and
input any russian characters into Text widget - listener not notify.
If input english characters - all right.
If client RAP started on Windows and input russian or english characters
- all right.
Help solve this problem, please.
Thanks
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| Re: Text widget on Linux with russian characters [message #67264 is a reply to message #67254] |
Mon, 24 December 2007 05:17  |
| Eclipse User |
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Hi,
just to be sure: did you ever tried it on a windows client? Are there
the same problems? Just wondering if it's the RAP js implementation or
maybe really a os-related thing.
Greets
Benny
Sergey A. wrote:
> Hi Rüdiger,
>
> Thanks for your attention for our problem.
>
> We don't do copy & paste russian characters (but we try copy & paste -
> request is not sent to the server).
> We just input russian characters to the Text widget.
> Well, we inspect requests at the Firebug plugin for Firefox. Request is
> not sent to the server.
>
> If we input string that contains any not russian characters (english
> characters, numbers, "space" and other special symbols) - request sent
> to the server. And on server then we have full string (with russian and
> not russian characters).
>
> Well, we have problem when use russian characters only.
>
> Maybe we have some problems with RAP javascript code? Or some specific
> preferences for linux browsers.
>
> Best regards
>
> Rüdiger Herrmann wrote:
>> Sergey,
>>
>> just a wild guess: do you copy & paste the Russian characters? I am
>> aware that some people reported that when *pasting* text it may happen
>> that it is not sent to the server. But we couldn't reproduce the
>> problem until now.
>> Can you tell whether a request is sent at all? And if so, what it
>> contains?
>>
>> Cheers,
>> Rüdiger
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| Re: Text widget on Linux with russian characters [message #68096 is a reply to message #67274] |
Wed, 02 January 2008 12:54 |
| Eclipse User |
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Originally posted by: rherrmann.innoopract.com
This is a multi-part message in MIME format.
--------------070003010901000303000001
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Sergey,
to me this sounds like a client-side problem. It would help to know
whether the JavaScript keystroke-listener that RAP uses in order to send
the modify-event is ever triggered.
As I neither have a Linux at hand nor a Russian keyboard I attached a
version of TextUtil.js with debug messages. If you replace the original
one (located in the ...rwt plug-in, in js/org/eclipse/swt/TextUtil.js)
with this one, you should see at least see "modifyTextAction" in the
debug window/Firebug console.
Please note that you need to have debug messages enabled by launching
the application with "-Dorg.eclipse.rwt.clientLogLevel=ALL".
Cheers,
Rüdiger
Sergey A. wrote:
> Hi,
>
> Yes, we tried it on a windows client. There are no problem.
>
> Best regards
>
> Benjamin Muskalla wrote:
>> Hi,
>>
>> just to be sure: did you ever tried it on a windows client? Are there
>> the same problems? Just wondering if it's the RAP js implementation or
>> maybe really a os-related thing.
>>
>> Greets
>> Benny
--------------070003010901000303000001
Content-Type: application/x-javascript;
name="TextUtil.js"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="TextUtil.js"
/*********************************************************** ********************
* Copyright (c) 2007 Innoopract Informationssysteme GmbH.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Innoopract Informationssysteme GmbH - initial API and implementation
************************************************************ ******************/
qx.Class.define( "org.eclipse.swt.TextUtil", {
statics : {
// TODO [rh] workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=201080
// the fix is to exchange the _onblur implementation of qx.ui.forms.Text
// with our own one, that checks parent != null before calling
// setSelectionLength
hijack : function( text ) {
text.removeEventListener( "blur", text._onblur );
text._onblur = function() {
var vValue = this.getComputedValue().toString();
if( this._textOnFocus != vValue ) {
this.setValue( vValue );
}
if( this.getParent() != null ) {
this.setSelectionLength( 0 );
}
};
text.addEventListener( "blur", text._onblur );
},
//////////////////////////////////////////////////////////// ///
// Functions for ModifyEvents and maintenance of the text/value
modifyText : function( evt ) {
var text = evt.getTarget();
if( !org_eclipse_rap_rwt_EventUtil_suspend
&& org.eclipse.swt.TextUtil._isModifyingKey( evt.getKeyIdentifier() ) )
{
// if not yet done, register an event listener that adds a request param
// with the text widgets' content just before the request is sent
if( !org.eclipse.swt.TextUtil._isModified( text ) ) {
var req = org.eclipse.swt.Request.getInstance();
req.addEventListener( "send", org.eclipse.swt.TextUtil._onSend, text );
org.eclipse.swt.TextUtil._setModified( text, true );
}
}
org.eclipse.swt.TextUtil.updateSelection( text, null );
},
/**
* This function gets assigned to the 'keyup' event of a text widget if
* there was a server-side ModifyListener registered.
*/
modifyTextAction : function( evt ) {
var text = evt.getTarget();
text.debug( "modifyTextAction" );
if( !org_eclipse_rap_rwt_EventUtil_suspend
&& !org.eclipse.swt.TextUtil._isModified( text )
&& org.eclipse.swt.TextUtil._isModifyingKey( evt.getKeyIdentifier() ) )
{
text.debug( "modifyTextAction: first modifying key" );
var req = org.eclipse.swt.Request.getInstance();
// Register 'send'-listener that adds a request param with current text
if( !org.eclipse.swt.TextUtil._isModified( text ) ) {
req.addEventListener( "send", org.eclipse.swt.TextUtil._onSend, text );
org.eclipse.swt.TextUtil._setModified( text, true );
text.debug( "modifyTextAction: register send-listener" );
}
// add modifyText-event with sender-id to request parameters
var widgetManager = org.eclipse.swt.WidgetManager.getInstance();
var id = widgetManager.findIdByWidget(text);
req.addEvent( "org.eclipse.swt.events.modifyText", id );
// register listener that is notified when a request is sent
qx.client.Timer.once( org.eclipse.swt.TextUtil._delayedModifyText,
text,
500 );
}
org.eclipse.swt.TextUtil.updateSelection( text, null );
},
/**
* This function gets assigned to the 'blur' event of a text widget if there
* was a server-side ModifyListener registered.
*/
modifyTextOnBlur : function( evt ) {
if( !org_eclipse_rap_rwt_EventUtil_suspend
&& org.eclipse.swt.TextUtil._isModified( evt.getTarget() ) )
{
var widgetManager = org.eclipse.swt.WidgetManager.getInstance();
var id = widgetManager.findIdByWidget( evt.getTarget() );
var req = org.eclipse.swt.Request.getInstance();
req.addEvent( "org.eclipse.swt.events.modifyText", id );
req.send();
}
},
_onSend : function( evt ) {
// NOTE: 'this' references the text widget
var widgetManager = org.eclipse.swt.WidgetManager.getInstance();
var id = widgetManager.findIdByWidget( this );
var req = org.eclipse.swt.Request.getInstance();
req.addParameter( id + ".text", this.getComputedValue() );
// remove the _onSend listener and change the text widget state to 'unmodified'
req.removeEventListener( "send", org.eclipse.swt.TextUtil._onSend, this );
org.eclipse.swt.TextUtil._setModified( this, false );
// Update the value property (which is qooxdoo-wise only updated on
// focus-lost) to be in sync with server-side
if( this.getFocused() ) {
this.setValue( this.getComputedValue() );
}
},
_delayedModifyText : function( evt ) {
// NOTE: this references the text widget (see qx.client.Timer.once above)
if( org.eclipse.swt.TextUtil._isModified( this ) ) {
var req = org.eclipse.swt.Request.getInstance();
req.send();
}
},
_isModified : function( widget ) {
return widget.getUserData("modified") == true;
},
_setModified : function( widget, modified ) {
return widget.setUserData("modified", modified);
},
/**
* Determines whether the given keyIdentifier potentially modifies the
* content of a text widget.
*/
_isModifyingKey : function( keyIdentifier ) {
var result = false;
switch( keyIdentifier ) {
// Modifier keys
case "Shift":
case "Control":
case "Alt":
case "Meta":
case "Win":
// Navigation keys
case "Up":
case "Down":
case "Left":
case "Right":
case "Home":
case "End":
case "PageUp":
case "PageDown":
case "Tab":
// Context menu key
case "Apps":
//
case "Escape":
case "Insert":
case "Enter":
//
case "CapsLock":
case "NumLock":
case "Scroll":
case "PrintScreen":
// Function keys 1 - 12
case "F1":
case "F2":
case "F3":
case "F4":
case "F5":
case "F6":
case "F7":
case "F8":
case "F9":
case "F10":
case "F11":
case "F12":
break;
default:
result = true;
}
return result;
},
//////////////////////////////////////////////////////////// ///////
// Functions to maintain the selection-start and -length properties
onMouseUp : function( evt ) {
if( !org_eclipse_rap_rwt_EventUtil_suspend ) {
var text = evt.getTarget();
org.eclipse.swt.TextUtil.updateSelection( text, null );
}
},
updateSelection : function( text, enclosingWidget ) {
// TODO [rh] executing the code below for a TextArea leads to Illegal
// Argument
if( text.classname != "qx.ui.form.TextArea" ) {
var widget = enclosingWidget != null ? enclosingWidget : text;
var start = text.getSelectionStart();
var length = text.getSelectionLength();
if( text.getUserData( "selectionStart" ) != start ) {
text.setUserData( "selectionStart", start );
org.eclipse.swt.TextUtil._setPropertyParam( widget,
"selectionStart",
start );
}
if( text.getUserData( "selectionLength" ) != length ) {
text.setUserData( "selectionLength", length );
org.eclipse.swt.TextUtil._setPropertyParam( widget,
"selectionCount",
length );
}
}
},
// TODO [rst] not text specific, move this function to Request
_setPropertyParam : function( widget, name, value ) {
var widgetManager = org.eclipse.swt.WidgetManager.getInstance();
var id = widgetManager.findIdByWidget( widget );
var req = org.eclipse.swt.Request.getInstance();
req.addParameter( id + "." + name, value );
},
setSelection : function( text, start, length ) {
if( text.isCreated() && !text.getUserData( "pooled" ) ) {
org.eclipse.swt.TextUtil._doSetSelection( text, start, length );
}
else {
text.setUserData( "onAppear.selectionStart", start );
text.setUserData( "onAppear.selectionLength", length );
text.addEventListener( "appear",
org.eclipse.swt.TextUtil._onAppearSetSelection );
}
},
_onAppearSetSelection : function( evt ) {
var text = evt.getTarget();
var start = text.getUserData( "onAppear.selectionStart" );
var length = text.getUserData( "onAppear.selectionLength" );
org.eclipse.swt.TextUtil._doSetSelection( text, start, length );
text.removeEventListener( "appear",
org.eclipse.swt.TextUtil._onAppearSetSelection );
},
_doSetSelection : function( text, start, length ) {
text.setUserData( "selectionStart", start );
text.setSelectionStart( start );
text.setUserData( "selectionLength", length );
text.setSelectionLength( length );
},
// TODO [rst] Workaround for pooling problems with wrap property in IE.
// These methods can probably be dropped once qx bug 300 is fixed.
setWrap : function( text, wrap ) {
if( text.isCreated() && !text.getUserData( "pooled" ) ) {
text.setWrap( wrap );
} else {
text.setUserData( "onAppear.wrap", wrap );
text.addEventListener( "appear",
org.eclipse.swt.TextUtil._onAppearSetWrap );
}
},
_onAppearSetWrap : function( evt ) {
var text = evt.getTarget();
var wrap = text.getUserData( "onAppear.wrap" );
text.setUserData( "onAppear.wrap", undefined );
text.setWrap( wrap );
text.removeEventListener( "appear",
org.eclipse.swt.TextUtil._onAppearSetWrap );
},
////////////////////////////
// SelectionListener support
/**
* This function is registered server-side if a SelectionListener should
* be notified about the widgetDefaultSelection event that occurs when
* Enter was pressed.
*/
widgetDefaultSelected : function( evt ) {
if( !org_eclipse_rap_rwt_EventUtil_suspend ) {
if( evt.getKeyIdentifier() == "Enter"
&& !evt.isShiftPressed()
&& !evt.isAltPressed()
&& !evt.isCtrlPressed()
&& !evt.isMetaPressed() )
{
evt.setPropagationStopped( true );
var widgetManager = org.eclipse.swt.WidgetManager.getInstance();
var id = widgetManager.findIdByWidget( evt.getTarget() );
var req = org.eclipse.swt.Request.getInstance();
req.addEvent( "org.eclipse.swt.events.widgetDefaultSelected", id );
req.send();
}
}
}
}
});
--------------070003010901000303000001--
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