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RE: [CSSOM] GetComputedStyle : choose the unit

From: Ludger Buenger <ludger.buenger@realobjects.com>
Date: Mon, 23 Mar 2009 19:20:14 +0100
Message-ID: <96458C389BF1724995FFD7FAD889263722D4E3@ex.nc-sb.de>
To: "Innovimax SARL" <innovimax@gmail.com>, <www-style@w3.org>
 

This is already possible in a slightly different way, so please read the fine standard!

 

Try this:

 

CSSPrimitiveValue widthValue = ((CSSPrimitiveValue)getComputedStyle(element).getPropertyCSSValue(“width”));

 

int widthInEM = widthValue.getFloatValue(CSSPrimitiveValue.CSS_EM);

or

int widthInPX = widthValue.getFloatValue(CSSPrimitiveValue.CSS_PX);

 

For convenience, I omitted instance, type null and other checks…

 

 

Ludger

 

 

From: www-style-request@w3.org [mailto:www-style-request@w3.org] On Behalf Of Innovimax SARL
Sent: Monday, March 23, 2009 6:08 PM
To: www-style@w3.org
Subject: [CSSOM] GetComputedStyle : choose the unit

 

Dear,

For the moment in http://dev.w3.org/csswg/cssom/


We can find

[[
interface ViewCSS {
  CSSStyleDeclaration getComputedStyle(in Element elt);
  CSSStyleDeclaration getComputedStyle(in Element elt, in DOMString pseudoElt);
};
The getComputedStyle method must return a live CSSStyleDeclaration object that contains the computed style declaration block for elt, when the pseudoElt argument is null, the empty string or omitted. Otherwise, for the pseudo-element pseudoElt of elt. [CSS]
]]

And then
[[
interface CSSStyleDeclaration {
           attribute DOMString cssText;
  DOMString getPropertyValue(in DOMString property);
  DOMString getPropertyPriority(in DOMString property);
  DOMString removeProperty(in DOMString property);
  void setProperty(in DOMString property, in DOMString value);
  void setProperty(in DOMString property, in DOMString value, in DOMString priority);
  readonly attribute unsigned long length;
  DOMString item(in unsigned long index);
  readonly attribute CSSRule parentRule;
};
]]

So it means, if I want to have access to the width of an element
getComputedStyle(el, "").getPropertyValue("width");

I propose to add a new parameter to getPropertyValue so that you can choose the unit

something like

getComputedStyle(el, "").getPropertyValue("width", "px");

And even to get information with respect to relative value

getComputedStyle(el, "").getPropertyValue("width", "em");


Regards,

Mohamed ZERGAOUI

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Innovimax SARL
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Tel : +33 9 52 475787
Fax : +33 1 4356 1746
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Received on Monday, 23 March 2009 18:22:02 GMT

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