Actually, many thanks for your email and report, you saved our day! You spotted a regression that our regression test environment should have caught (I am going to work on why it did not). This is especially timely: we are busy working on the 1.5 final release.
Thomas and I discussed this issue and Thomas has a fix for it that he'll commit later today. The window object was available but recent changes made it unavailable. As you mentioned, 'window' is a commonly available global variable.
In Batik, we have the window object (which has the alert/setTimeout methods etc...) and the document object available as global objects by default.
Cheers, Vincent.
D. DeCoudras wrote:
Vincent,
Thank you for further clarifying the relationship between ECMAScript and Javascript / Jscript. In the Batik context, the following code excerpt is embedded in one of my SVG files as follows:
<script type="text/ecmascript"> <![CDATA[ var svgns = "http://www.w3.org/2000/svg";; function ToggleDisplay(evt) { if ( window.svgDocument == null ) svgDocument = evt.target.ownerDocument; triadObjects = svgDocument.getElementById("Triangles");
In the above code, the ToggleDisplay(evt) function is associated with an onclick event defined elsewhere in the SVG document. When the user using Batik clicks on a graphical representation of the object that triggers this function, Batik yields an SVG Error stating, "window is not defined". With apologies, I probably shouldn't have attributed this error with my own personal schema as "freaking out" ... as others may not agree with my schema.
If I take the exact same code aforementioned and thus the exact same SVG document and click on the exact same user interface graphical representation that triggers the event with an onclick -- in Internet Explorer 5.x running on Mac OS X 10.2.6 with the Adobe SVG Viewer plug-in plugged in to IE 5.x, I do not receive any errors and the above ECMAscript executes completely (note: I wouldn't expect to see any errors being reported anyway since IE and the Adobe SVG Viewer do not have an error reporting mechanism to my knowledge).
If I remove the entire if() statement containing the reference to the global, "window" and rearrange as in:
svgDocument = evt.target.ownerDocument;
then the user interface experience works perfectly in Batik.
I am new to javascript and certainly ECMAScript, so maybe javascript is much more forgiving with respect to global variables and how they are referenced and/or declared?
Best regards,
-Don
From: Vincent Hardy <[EMAIL PROTECTED]> Reply-To: "Batik Users" <[EMAIL PROTECTED]> To: Batik Users <[EMAIL PROTECTED]> Subject: Re: Why does Squiggle complain about javascript? Date: Thu, 10 Jul 2003 14:24:41 +0200
Hi Don,
ECMAScript is the standardized language that, as far as I know, tried to make JScript and JavaScript into interoperable languages.
I do not know enough about the language differences to give a meaningful answer on how they differ. However, and this is true for ECMAScript as well, there are libraries or global objects / functions which are not part of the standard and that may (or not) be available depending on the implementation.
In the Batik context, I am not sure what you mean when you say Batik freaks out on 'window'. This is a global object we support in ECMAScript and there are samples in samples/tests/spec/scripting that use it. Could you send an example of what you see go wrong?
Regards, Vincent.
D. DeCoudras wrote:
Thanks Vincent. I also found out from experimentation that removing the type attribute altogether also works with Batik (I.e., <script> [CDATA ...). Are there any good references on the differences between ecmascript and javascript? For instance, in javascript I can refer to the global "window" but Batik freaks out if it sees the same javascript reference, so I had to remove it. I hope its not Pandora's box with respect to the differences between ecmascript and javascript. After all, our collective interest in the Batik community is to get progress SVG and get it in the hands of many.
Best regards,
-Don
From: Vincent Hardy <[EMAIL PROTECTED]> Reply-To: "Batik Users" <[EMAIL PROTECTED]> To: Batik Users <[EMAIL PROTECTED]> Subject: Re: Why does Squiggle complain about javascript? Date: Thu, 10 Jul 2003 10:12:59 +0200
Hello,
The type should be "text/ecmascript" not "text/javascript".
There are multiple examples of scripting using ECMAScript in the samples/tests/spec/scripting directory.
Regards, Vincent.
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