Changes between Version 7 and Version 8 of ScalesAndZooms

Timestamp:

Jun 14, 2012 6:54:15 PM (12 years ago)

Author:

jamesr@google.com

Comment:

--

ScalesAndZooms

@@ -20 +20 @@
 WebKit supports (at least) the following types of zooms and scales:
 
-|| '''Name''' || '''Ratio''' || '''Changes viewport size (in logical pixels)''' || '''Exposed directly to web content''' ||
+|| '''Name''' || '''Ratio''' || '''Changes CSS viewport size''' || '''Exposed directly to web content''' ||
 || Device Scale || Physical pixel : Logical pixel || No || Yes - window.devicePixelRatio, CSS media queries ||
 || Page scale || Logical pixel : CSS pixel || No || No ||
@@ -31 +31 @@
 
 == Page scale ==
-Page scale is used to implement zooming gestures.  This is typically done in conjunction with using a porthole/virtual viewport model where the viewport that the user sees is a subset of the viewport as exposed to the web page.  Page scale affects the virtual viewport, not the CSS viewport, so layout is, generally speaking, not impacted by a changing page scale.  Fixed position elements are an exception to this - they are often rooted to the virtual viewport and not the CSS viewport.  This behavior is not well defined and there are many behavior differences between different ports.
+Page scale is used to implement zooming gestures.  This is typically done in conjunction with using a porthole/virtual viewport model.  The virtual viewport, which the user sees, is a subset of the viewport as exposed to the web page.  Page scale affects the virtual viewport, not the CSS viewport, so layout is, generally speaking, not impacted by a changing page scale.  Fixed position elements are an exception to this - they are often rooted to the virtual viewport and not the CSS viewport.  This behavior is not well defined and there are many behavior differences between different ports.
 
 == Page zoom ==