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Posted to batik-users@xmlgraphics.apache.org by x....@web.de on 2009/11/02 14:22:04 UTC
unable to add property to JavaScript node object
Hi all,
I asked the following question on the SVG-developers list, but I guess you guys can help me better: Why is it impossible to add a property to a DOM node with Batik? I have the following test SVG:
<?xml version="1.0"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" onload="init()">
<script type="text/javascript">
init = function(){
testnode = document.getElementById("testnode")
testnode.myProperty = "test"
alert(testnode.myProperty)
}
</script>
<rect id="testnode" width="100" height="100" x="150" y="150"/>
</svg>
It works perfectly in Firefox, Opera, IE+ASV and Safari, but Squiggle (Batik 1.8pre+r801641) gives me the following Java error message:
Java class "org.apache.batik.dom.svg.SVGOMRectElement" has no public instance field or method named "myProperty". (Inline <script> file:/E:/programmieren/svg/js/js_attribute_to_node_object_4.svg:6#4)
Of course I can't dynamically add a property to a Java object, but this is JavaScript, so I guess I should be able to add my custom properties. I initially thought this could be Rhino's fault, but I threw the exact same script into an HTML document and tested it with Lobo (AFAIK it uses Rhino as well). This works as expected:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script type="text/javascript">
init = function(){
testnode = document.getElementById("testnode")
testnode.myProperty = "test"
alert(testnode.myProperty)
}
</script>
</head>
<body onload="init()">
<p id="testnode">testnode</p>
</body>
</html>
Why aren't the Java DOM node objects properly wrapped as JavaScript objects? Is this by purpose or just a missing feature?
By the way, java -version on Windows XP gives me the following:
java version "1.6.0_13"
Java(TM) SE Runtime Environment (build 1.6.0_13-b03)
Java HotSpot(TM) Client VM (build 11.3-b02, mixed mode)
Any info is greatly appreciated
Thomas Weber
________________________________________________________________
DSL-Preisknaller: DSL-Komplettpakete schon für 16,99 Euro/mtl.!*
http://produkte.web.de/go/02/
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Re: unable to add property to JavaScript node object
Posted by Martin Jacobson <ja...@gmail.com>.
This works in Squiggle...
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC '-//W3C//DTD SVG 1.0//EN'
'http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd'
[
<!ATTLIST rect
xmlns:my CDATA #FIXED "http://www.web.de/xzupftom"
my:Property CDATA #IMPLIED >
]>
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" onload="init()">
<script type="text/javascript">
init = function() {
testnode = document.getElementById("testnode")
testnode.setAttributeNS("http://www.web.de/xzupftom",
"my:Property", "test");
}
</script>
<rect id="testnode" width="100" height="100" x="150" y="150"/>
</svg>
Look at the DOM when this has loaded, and you'll see the my:Property
attribute set to the value "test"
HTH
Martin
2009/11/2 Martin Jacobson <ja...@gmail.com>:
> Maybe the experts will come up with a better explanation, but this is
> the expected behaviour: the SVG DTD doesn't define a myProperty
> attribute for the rect element, so Batik (correctly) refuses to allow
> you to set its value - however, you can declare new attributes for
> most SVG elements (see the SVG specs for details). The fact that
> Firefox et al don't barf, is probably that they don't validate the
> SVG, merely test it for well-formedness.
>
> HTH
> Martin
>
>
> 2009/11/2 <x....@web.de>:
>> Hi all,
>>
>> I asked the following question on the SVG-developers list, but I guess you guys can help me better: Why is it impossible to add a property to a DOM node with Batik? I have the following test SVG:
>>
>>
>> <?xml version="1.0"?>
>> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
>> "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
>>
>> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" onload="init()">
>> <script type="text/javascript">
>> init = function(){
>> testnode = document.getElementById("testnode")
>> testnode.myProperty = "test"
>> alert(testnode.myProperty)
>> }
>> </script>
>> <rect id="testnode" width="100" height="100" x="150" y="150"/>
>> </svg>
>>
>>
>> It works perfectly in Firefox, Opera, IE+ASV and Safari, but Squiggle (Batik 1.8pre+r801641) gives me the following Java error message:
>>
>> Java class "org.apache.batik.dom.svg.SVGOMRectElement" has no public instance field or method named "myProperty". (Inline <script> file:/E:/programmieren/svg/js/js_attribute_to_node_object_4.svg:6#4)
>>
>> Of course I can't dynamically add a property to a Java object, but this is JavaScript, so I guess I should be able to add my custom properties. I initially thought this could be Rhino's fault, but I threw the exact same script into an HTML document and tested it with Lobo (AFAIK it uses Rhino as well). This works as expected:
>>
>>
>> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
>> "http://www.w3.org/TR/html4/loose.dtd">
>> <html>
>> <head>
>> <script type="text/javascript">
>> init = function(){
>> testnode = document.getElementById("testnode")
>> testnode.myProperty = "test"
>> alert(testnode.myProperty)
>> }
>> </script>
>> </head>
>> <body onload="init()">
>> <p id="testnode">testnode</p>
>> </body>
>> </html>
>>
>>
>> Why aren't the Java DOM node objects properly wrapped as JavaScript objects? Is this by purpose or just a missing feature?
>>
>> By the way, java -version on Windows XP gives me the following:
>> java version "1.6.0_13"
>> Java(TM) SE Runtime Environment (build 1.6.0_13-b03)
>> Java HotSpot(TM) Client VM (build 11.3-b02, mixed mode)
>>
>> Any info is greatly appreciated
>> Thomas Weber
>> ________________________________________________________________
>> DSL-Preisknaller: DSL-Komplettpakete schon für 16,99 Euro/mtl.!*
>> http://produkte.web.de/go/02/
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
>> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
>>
>>
>
>
>
> --
> From my MacBook Pro
>
--
>From my MacBook Pro
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Re: unable to add property to JavaScript node object
Posted by Martin Jacobson <ja...@gmail.com>.
Maybe the experts will come up with a better explanation, but this is
the expected behaviour: the SVG DTD doesn't define a myProperty
attribute for the rect element, so Batik (correctly) refuses to allow
you to set its value - however, you can declare new attributes for
most SVG elements (see the SVG specs for details). The fact that
Firefox et al don't barf, is probably that they don't validate the
SVG, merely test it for well-formedness.
HTH
Martin
2009/11/2 <x....@web.de>:
> Hi all,
>
> I asked the following question on the SVG-developers list, but I guess you guys can help me better: Why is it impossible to add a property to a DOM node with Batik? I have the following test SVG:
>
>
> <?xml version="1.0"?>
> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
> "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
>
> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" onload="init()">
> <script type="text/javascript">
> init = function(){
> testnode = document.getElementById("testnode")
> testnode.myProperty = "test"
> alert(testnode.myProperty)
> }
> </script>
> <rect id="testnode" width="100" height="100" x="150" y="150"/>
> </svg>
>
>
> It works perfectly in Firefox, Opera, IE+ASV and Safari, but Squiggle (Batik 1.8pre+r801641) gives me the following Java error message:
>
> Java class "org.apache.batik.dom.svg.SVGOMRectElement" has no public instance field or method named "myProperty". (Inline <script> file:/E:/programmieren/svg/js/js_attribute_to_node_object_4.svg:6#4)
>
> Of course I can't dynamically add a property to a Java object, but this is JavaScript, so I guess I should be able to add my custom properties. I initially thought this could be Rhino's fault, but I threw the exact same script into an HTML document and tested it with Lobo (AFAIK it uses Rhino as well). This works as expected:
>
>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
> "http://www.w3.org/TR/html4/loose.dtd">
> <html>
> <head>
> <script type="text/javascript">
> init = function(){
> testnode = document.getElementById("testnode")
> testnode.myProperty = "test"
> alert(testnode.myProperty)
> }
> </script>
> </head>
> <body onload="init()">
> <p id="testnode">testnode</p>
> </body>
> </html>
>
>
> Why aren't the Java DOM node objects properly wrapped as JavaScript objects? Is this by purpose or just a missing feature?
>
> By the way, java -version on Windows XP gives me the following:
> java version "1.6.0_13"
> Java(TM) SE Runtime Environment (build 1.6.0_13-b03)
> Java HotSpot(TM) Client VM (build 11.3-b02, mixed mode)
>
> Any info is greatly appreciated
> Thomas Weber
> ________________________________________________________________
> DSL-Preisknaller: DSL-Komplettpakete schon für 16,99 Euro/mtl.!*
> http://produkte.web.de/go/02/
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
>
>
--
>From my MacBook Pro
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To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
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