Hi.
I'm not familiar with any VML Plugins, so I can't say if that would
work. As I said, removing VML from RAP this is a rather complicated task
that should only be attempted by someone familiar with the RAP
JavaScript Code. Otherwise I is very likely to break something. And of
course the application will look somewhat like a Windows 95 application
as a result.
To be frank, I think this whole approach (ripping out parts of IE) is a
bad. I know it's not your Idea, but I would still strongly suggest to
try to negotiate with those in charge to either install the security
fix, switch to another browser, or update the OS. A second service
release such as 1.5.2 is by based on months of feedback on 1.5.0 and
1.5.1. When hacking RAP in that way is there is a considerable risk that
it will introduce a new bug in this otherwise stable release -
especially when done by a non-expert and not tested by a whole developer
community.
I'm sorry if that isn't what you hoped to hear. If you see no other way
than to modify RAP, at the very least let a JavaScript expert do it.
Greetings,
Tim
Am 09.05.2014 12:42, schrieb [email protected]:
Hi Tim,
yersterday we tried this one by removing all gradients, animations,
rounded corners, but then the events were no longer propagated, so we
could see some sort of button (very ugly though) but were not able to
click them.
As we understood the code in [1] when the engine says that VML is
supported, a renderClass of VML-type would always be instantiated
which in our opinion leads to javascript errors that kill something in
the application. But we're no javascript experts (that's why we use RAP).
Would it be possible in your opinion, when we use IE 8 without enabled
vgx.dll but with installed VMLViewer-Plugin? Maybe the service
provider of our customers could implement this, assuming there's no
known security issue.
Greetings,
Frank
Von: Tim Buschtöns <[email protected]>
An: RAP project development-related communication <[email protected]>
Datum: 09.05.2014 12:22
Betreff: Re: [rap-dev] Support Internet Explorer < 9 without VML
Gesendet von: [email protected]
------------------------------------------------------------------------
Hi.
It should be possible to modify any RAP version to work without VML,
assuming the "classic" theme is used (as it doesn't use
gradients/rounded borders) and no Canvas widgets are used.
The ProgressBar widget is also problematic, but could be modified to
work without VML.
However, these changes aren't trivial and I can not give you some
easy-to-follow tutorial to implement them. I would have to do it
myself and probably need at least few days for that.
Greetings,
Tim
Am 09.05.2014 08:24, schrieb [email protected]_
<mailto:[email protected]>:
Hello,
we are using RAP 1.5.2 for about 7 applications among 400 customers.
Most of them still stick to Windows XP and therefore to IE 8 (because
our customers are mostly bank institutes who depend on external IT
service provider).
Recently a security vulnerability in the Microsoft VML-Library came up
which was fixed by an out-of-band patch
(_http://support.microsoft.com/kb/2964358_relating to
_https://technet.microsoft.com/de-de/library/security/ms14-021_).
Instead of using this patch the service provider of our customers
suggested disabling the VML-capabilities of IE by unregistering the
dll "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll". This makes
every RAP-application non-functional on IE < 9, because it tries to
initialize an org.eclipse.rwt.VML in org.eclipse.rwt.GraphicsUtil, if
the engine reports to support VML [1].
As far as we can see, IE up to version 8 reports as engine name
"mshtml", which in org.eclipse.rwt.Client leads to returning true in
function supportsVml. [2]
So the question is: Is it possible to get around this with
a) not having the customers upgrade to IE >= 9
b) not having the customers use a different browser
c) not having the customers to re-enable the vgx.dll
?
Best regards
Frank Jakop
Teamleiter
________________________
arxes-tolina GmbH
Salzufer 8, 10587 Berlin_
__http://www.arxes-tolina.de_ <http://www.arxes-tolina.de/>
[1]
statics : {
_renderClass : *null*,
init : *function*() {
*if*( *this*._renderClass == *null*) {
*if*( org.eclipse.rwt.Client.supportsVml() ) {
*this*._renderClass = org.eclipse.rwt.VML;
} *else**if*( org.eclipse.rwt.Client.supportsSvg() ) {
*this*._renderClass = org.eclipse.rwt.SVG;
}
*if*( *this*._renderClass != *null*) {
*this*._renderClass.init();
}
}
},
[2]
supportsVml : function() {
return ( this.getEngine() === "mshtml" ) && ( this.getVersion()
>= 5.5 );
},
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