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Archived:FEP causing browser to crash on S60 2nd and 3rd Editions (Known Issue)

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__NOTOC__
 
__NOTOC__
 
__NOEDITSECTION__
 
__NOEDITSECTION__
{|border="2" cellspacing="0" cellpadding="4" width="100%"
+
{{KnowledgeBase
|colspan = "2"|
+
|id=KIS000411
=====3d-party FEP causing browser to crash =====
+
|platform=S60 2nd Edition, FP2 and FP3<br>S60 3rd Edition
|KIS000411
+
|devices=
 +
|category=
 +
|subcategory=
 +
|creationdate=September 21, 2006
 +
|keywords=
 +
}}
  
|-
+
==Overview==
|
+
There is a bug in S60 browser code that can cause a crash with 3rd-party FEPs. &nbsp;After installing a 3rd-party FEP, the browser crashes on launch, causing a KERN-EXEC 3 panic.
=====Overview=====
+
|colspan = "2"|There is a bug in S60 browser code that can cause a crash with 3rd-party FEPs. &nbsp;After installing a 3rd-party FEP, the browser crashes on launch, causing a KERN-EXEC 3 panic.
+
  
|-
+
==Description==
|
+
This bug can be worked around by implementing your own MAknEditingStateIndicator that has empty methods. This &nbsp;will avert the browser from crashing but may have unexpected behavior with some other components, so extended testing with other editors is advised.<br>To implement this indicator interface you will need a header file which is not part of the SDK until S60 3rd Edition, Feature Pack 1. The header (akneditstateindicator.h), included in the S60 3rd Edition, FP1 SDK, can be used also with previous S60 platform versions that are affected by this issue.
=====Reported against=====
+
|colspan = "2"|S60 2nd Edition, FP2 and FP3<br>S60 3rd Edition
+
  
|-
+
==Solution==
|
+
The dummy indicator implementation would be something like this:<br>//------------------------------------------------------------------------------<br>// FepIndicator.h:<br><nowiki>#</nowiki>include <nowiki><</nowiki>akneditstateindicator.h<nowiki>></nowiki> &nbsp;// for MAknEditingStateIndicator<br>class CFepIndicator : public CBase, public MAknEditingStateIndicator<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>public:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;enum TIndicatorState<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EStateNone = 1,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EStateNumeric,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EStateAlphabat<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki>;<br>public:<br>&nbsp;&nbsp;&nbsp;&nbsp;static CFepIndicator* NewL();<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>~</nowiki>CFepIndicator();<br>&nbsp;&nbsp;&nbsp;&nbsp;virtual void SetState(TIndicatorState aState);<br>&nbsp;&nbsp;&nbsp;&nbsp;// From MAknEditingStateIndicator<br>&nbsp;&nbsp;&nbsp;&nbsp;void SetState(TAknEditingState aState);<br>&nbsp;&nbsp;&nbsp;&nbsp;CAknIndicatorContainer* IndicatorContainer();<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// ...<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki>;<br>// FepControl.cpp:<br>void CExampleFepControl::ConstructL()<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;CreateWindowL();<br>&nbsp;&nbsp;&nbsp;&nbsp;SetNonFocusing();<br>&nbsp;&nbsp;&nbsp;&nbsp;RWindow& window = Window();<br>&nbsp;&nbsp;&nbsp;&nbsp;window.SetOrdinalPosition(0, ECoeWinPriorityFep);<br>&nbsp;&nbsp;&nbsp;&nbsp;TPoint fepControlPos(0, 0);<br>&nbsp;&nbsp;&nbsp;&nbsp;SetExtent(fepControlPos, TSize(0,0));<br>&nbsp;&nbsp;&nbsp;&nbsp;window.SetExtent(fepControlPos, TSize(0,0));<br>&nbsp;&nbsp;&nbsp;&nbsp;window.SetNonFading(ETrue);<br>&nbsp;&nbsp;&nbsp;&nbsp;// Create multi-tap input engine<br>&nbsp;&nbsp;&nbsp;&nbsp;iMultiTapEngine = CExampleFepMultiTapEngine::NewL(*this);<br>&nbsp;&nbsp;&nbsp;&nbsp;// Create status pane indicator<br>&nbsp;&nbsp;&nbsp;&nbsp;iIndicator = CFepIndicator::NewL();<br>&nbsp;&nbsp;&nbsp;&nbsp;CAknEnv::Static()-<nowiki>></nowiki>SwapEditingStateIndicator(iIndicator);<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki><br>&nbsp;// FepIndicator.cpp:<br>void CFepIndicator::SetState(TAknEditingState */aState*/)<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;CAknIndicatorContainer* CFepIndicator::IndicatorContainer()<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;return NULL;<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;//------------------------------------------------------------------------------
=====Date identified=====
+
|colspan = "2"|September 21, 2006
+
  
|-
 
|
 
=====Symptoms=====
 
|colspan = "2"|-
 
 
|-
 
|
 
=====Detailed description=====
 
|colspan = "2"|This bug can be worked around by implementing your own MAknEditingStateIndicator that has empty methods. This &nbsp;will avert the browser from crashing but may have unexpected behavior with some other components, so extended testing with other editors is advised.<br>To implement this indicator interface you will need a header file which is not part of the SDK until S60 3rd Edition, Feature Pack 1. The header (akneditstateindicator.h), included in the S60 3rd Edition, FP1 SDK, can be used also with previous S60 platform versions that are affected by this issue.
 
 
|-
 
|
 
=====How to reproduce=====
 
|colspan = "2"|-
 
 
|-
 
|
 
=====Solution=====
 
|colspan = "2"|The dummy indicator implementation would be something like this:<br>//------------------------------------------------------------------------------<br>// FepIndicator.h:<br><nowiki>#</nowiki>include <nowiki><</nowiki>akneditstateindicator.h<nowiki>></nowiki> &nbsp;// for MAknEditingStateIndicator<br>class CFepIndicator : public CBase, public MAknEditingStateIndicator<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>public:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;enum TIndicatorState<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EStateNone = 1,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EStateNumeric,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EStateAlphabat<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki>;<br>public:<br>&nbsp;&nbsp;&nbsp;&nbsp;static CFepIndicator* NewL();<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>~</nowiki>CFepIndicator();<br>&nbsp;&nbsp;&nbsp;&nbsp;virtual void SetState(TIndicatorState aState);<br>&nbsp;&nbsp;&nbsp;&nbsp;// From MAknEditingStateIndicator<br>&nbsp;&nbsp;&nbsp;&nbsp;void SetState(TAknEditingState aState);<br>&nbsp;&nbsp;&nbsp;&nbsp;CAknIndicatorContainer* IndicatorContainer();<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// ...<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki>;<br>// FepControl.cpp:<br>void CExampleFepControl::ConstructL()<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;CreateWindowL();<br>&nbsp;&nbsp;&nbsp;&nbsp;SetNonFocusing();<br>&nbsp;&nbsp;&nbsp;&nbsp;RWindow& window = Window();<br>&nbsp;&nbsp;&nbsp;&nbsp;window.SetOrdinalPosition(0, ECoeWinPriorityFep);<br>&nbsp;&nbsp;&nbsp;&nbsp;TPoint fepControlPos(0, 0);<br>&nbsp;&nbsp;&nbsp;&nbsp;SetExtent(fepControlPos, TSize(0,0));<br>&nbsp;&nbsp;&nbsp;&nbsp;window.SetExtent(fepControlPos, TSize(0,0));<br>&nbsp;&nbsp;&nbsp;&nbsp;window.SetNonFading(ETrue);<br>&nbsp;&nbsp;&nbsp;&nbsp;// Create multi-tap input engine<br>&nbsp;&nbsp;&nbsp;&nbsp;iMultiTapEngine = CExampleFepMultiTapEngine::NewL(*this);<br>&nbsp;&nbsp;&nbsp;&nbsp;// Create status pane indicator<br>&nbsp;&nbsp;&nbsp;&nbsp;iIndicator = CFepIndicator::NewL();<br>&nbsp;&nbsp;&nbsp;&nbsp;CAknEnv::Static()-<nowiki>></nowiki>SwapEditingStateIndicator(iIndicator);<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki><br>&nbsp;// FepIndicator.cpp:<br>void CFepIndicator::SetState(TAknEditingState */aState*/)<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;CAknIndicatorContainer* CFepIndicator::IndicatorContainer()<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>{</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;return NULL;<br>&nbsp;&nbsp;&nbsp;&nbsp;<nowiki>}</nowiki><br>&nbsp;&nbsp;&nbsp;&nbsp;//------------------------------------------------------------------------------
 
 
|-
 
 
[[Category:Known Issue]][[Category:Symbian C++]][[Category:S60 2nd Edition]][[Category:S60 3rd Edition]]
 
[[Category:Known Issue]][[Category:Symbian C++]][[Category:S60 2nd Edition]][[Category:S60 3rd Edition]]

Revision as of 18:39, 23 October 2008

Template:KBKI


Article Metadata
CompatibilityArticle
Created: (21 Sep 2006)
Last edited: extkbeditor2 (23 Oct 2008)

Overview

There is a bug in S60 browser code that can cause a crash with 3rd-party FEPs.  After installing a 3rd-party FEP, the browser crashes on launch, causing a KERN-EXEC 3 panic.

Description

This bug can be worked around by implementing your own MAknEditingStateIndicator that has empty methods. This  will avert the browser from crashing but may have unexpected behavior with some other components, so extended testing with other editors is advised.
To implement this indicator interface you will need a header file which is not part of the SDK until S60 3rd Edition, Feature Pack 1. The header (akneditstateindicator.h), included in the S60 3rd Edition, FP1 SDK, can be used also with previous S60 platform versions that are affected by this issue.

Solution

The dummy indicator implementation would be something like this:
//------------------------------------------------------------------------------
// FepIndicator.h:
#include <akneditstateindicator.h>  // for MAknEditingStateIndicator
class CFepIndicator : public CBase, public MAknEditingStateIndicator
    {
public:
        enum TIndicatorState
            {
            EStateNone = 1,
            EStateNumeric,
            EStateAlphabat
            };
public:
    static CFepIndicator* NewL();
    ~CFepIndicator();
    virtual void SetState(TIndicatorState aState);
    // From MAknEditingStateIndicator
    void SetState(TAknEditingState aState);
    CAknIndicatorContainer* IndicatorContainer();
       // ...
    };
// FepControl.cpp:
void CExampleFepControl::ConstructL()
    {
    CreateWindowL();
    SetNonFocusing();
    RWindow& window = Window();
    window.SetOrdinalPosition(0, ECoeWinPriorityFep);
    TPoint fepControlPos(0, 0);
    SetExtent(fepControlPos, TSize(0,0));
    window.SetExtent(fepControlPos, TSize(0,0));
    window.SetNonFading(ETrue);
    // Create multi-tap input engine
    iMultiTapEngine = CExampleFepMultiTapEngine::NewL(*this);
    // Create status pane indicator
    iIndicator = CFepIndicator::NewL();
    CAknEnv::Static()->SwapEditingStateIndicator(iIndicator);
    }
 // FepIndicator.cpp:
void CFepIndicator::SetState(TAknEditingState */aState*/)
    {
    }
    CAknIndicatorContainer* CFepIndicator::IndicatorContainer()
    {
    return NULL;
    }
    //------------------------------------------------------------------------------

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