dojo.position return different values on WebKit based platforms

[steveshaw@…]

Steps:

• Create a group shape -> shape = owner.createGroup();
• transform the shape (x, y) ->

shape.setTransform(null); var matrix = { xx: 1.0, yy: 1.0, dx: 100, dy: 100 }; shape.setTransform(matrix);

• Query for it's position -> dojo.position(shape.rawNode, true);

In FireFox? it returns the translated value relative to it's parent. In WebKit? browsers (Safari / Chrome) it is unchanged.

[davidmark]

What version(s) of Safari and FF? Makes a huge difference for dojo.position (e.g. may or may not be using getBoundingClientRect).

Browser sniffing may be the culprit as well.

[davidmark]

Replying to davidmark:

What version(s) of Safari and FF? Makes a huge difference for dojo.position (e.g. may or may not be using getBoundingClientRect).

Browser sniffing may be the culprit as well.

Of course, the function is all tangled up with browser sniffing. Each sniff is a placeholder for a problem that was never properly investigated, diagnosed or solved.

		if(node["getBoundingClientRect"]){
			// IE6+, FF3+, super-modern WebKit, and Opera 9.6+ all take this branch
			ret = node.getBoundingClientRect();
			ret = { x: ret.left, y: ret.top, w: ret.right - ret.left, h: ret.bottom - ret.top };
		//>>excludeStart("webkitMobile", kwArgs.webkitMobile);
			if(d.isIE){
				// On IE there's a 2px offset that we need to adjust for, see _getIeDocumentElementOffset()
				var offset = d._getIeDocumentElementOffset();

				// fixes the position in IE, quirks mode
				ret.x -= offset.x + (d.isQuirks ? db.clientLeft+db.offsetLeft : 0);
				ret.y -= offset.y + (d.isQuirks ? db.clientTop+db.offsetTop : 0);
			}else if(d.isFF == 3){
				// In FF3 you have to subtract the document element margins.
				// Fixed in FF3.5 though.
				var cs = gcs(dh);
				ret.x -= px(dh, cs.marginLeft) + px(dh, cs.borderLeftWidth);
				ret.y -= px(dh, cs.marginTop) + px(dh, cs.borderTopWidth);
			}
		//>>excludeEnd("webkitMobile");
		}else{
			// FF2 and older WebKit

Of course, the documentElement should _never_ have margins (think about what that would look like.)

The IE quirks mode stuff is wrong too, but that is irrelevant here.

So, is it a "super modern" WebKit? that is giving you problems?

[Eugene Lazutkin]

More reports: ​http://article.gmane.org/gmane.comp.web.dojo.user/53293

[Eugene Lazutkin]

Hmm, it is more core than GFX.

[dylan]

Consider cleaning this code up for 1.12.

[dylan]

Ticket planning... move current 1.13 tickets out to 1.15 to make it easier to move tickets into the 1.13 milestone.