15443 2012-01-06 18:39:41 +0000 CSSMatrix is defined, but there's no way to get one 2012-02-23 05:20:24 +0000 1 1 1 Unclassified CSS Transforms unspecified All All RESOLVED LATER P2 normal --- 1 ayg smfr ayg cmarrin dino dschulze eoconnor smfr oldest_to_newest 62342 0 ayg 2012-01-06 18:39:41 +0000 http://dev.w3.org/csswg/css3-transforms/ defines a CSSMatrix interface with a bunch of methods. However, nothing in the spec provides any way to obtain a CSSMatrix, except by calling methods on an existing CSSMatrix. Either there should be some way to create a CSSMatrix -- maybe define a constructor? -- or the definition should be removed. (FWIW, window.CSSMatrix is undefined in all browsers I tested in. Either browsers don't actually implement the interface, or they implement it with [NoInterfaceObject]. grep -IR CSSMatrix . in mozilla-central returns no results.) 62345 1 smfr 2012-01-06 19:02:52 +0000 foo = new CSSMatrix('rotate(10deg)') works in webkit. 62346 2 ayg 2012-01-06 19:46:33 +0000 Is this only the Safari port? In Chrome 17 dev, I get "Uncaught ReferenceError: CSSMatrix is not defined". 62616 3 cmarrin 2012-01-12 21:35:04 +0000 (In reply to comment #2) > Is this only the Safari port? In Chrome 17 dev, I get "Uncaught > ReferenceError: CSSMatrix is not defined". In WebKit you have to say WebKitCSSMatrix, for instance: javascript:alert(new WebKitCSSMatrix('rotate(10deg)')) in the address bar works for me. 62668 4 ayg 2012-01-13 17:03:47 +0000 Aha, okay. Then I think the IDL should have this line added before it: [Constructor(optional DOMString transform)] and some prose like """ When the constructor for CSSMatrix is invoked, the parameter <var>transform</var> must be parsed according to the rules for parsing the <a href=#transform-property>transform property</a>. If parsing succeeds, return a CSSMatrix representing the matrix corresponding to <var>transform</var>. Otherwise, if <var>transform</var> is the empty string or is omitted, return a CSSMatrix representing the identity matrix. Otherwise, <a href=http://dvcs.w3.org/hg/domcore/raw-file/tip/dom-core.html#concept-throw>throw</a> a SyntaxError exception. """ (This doesn't define how whitespace stripping works, but that's not a big deal for now.) 64472 5 dschulze 2012-02-23 05:20:24 +0000 This gets delayed to CSS4 Transforms.