| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml"> |
| <head> |
| <title>CSS Test: Canvas: Embedded documents</title> |
| <link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/> |
| <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact" /> |
| <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-03-11 --> |
| <link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/model/canvas/001.html" type="text/html"/> |
| <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#viewport"/> |
| <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#containing-block-details"/> |
| <link rel="match" href="root-canvas-001-ref.xht" /> |
| |
| <style type="text/css"> |
| div { width: 10em; height: 10em; border: solid lime; background: red; padding: 0; } |
| object { width: 10em; height: 10em; margin: 0; padding: 0; border: 0; } |
| </style> |
| </head> |
| <body> |
| <p>There should be no red, only a green square with white text and a lime green border.</p> |
| <div><object type="text/html" data="support/root-canvas-001a.html">FAIL</object></div> |
| |
| <!-- reasoning: |
| |
| Section 9.1.1: |
| # There is at most one viewport per canvas |
| -> http://www.w3.org/TR/CSS21/visuren.html#q2 |
| |
| Section 2.3.1: |
| # the term canvas describes "the space where the formatting |
| # structure is rendered." |
| -> http://www.w3.org/TR/CSS21/intro.html#q4 |
| |
| Section 2.3, item 5: |
| # From the annotated document tree, generate a formatting |
| # structure. |
| -> http://www.w3.org/TR/CSS21/intro.html#processing-model |
| |
| Section 2.3, item 1: |
| # Parse the source document and create a document tree. |
| -> http://www.w3.org/TR/CSS21/intro.html#processing-model |
| |
| ...therefore is a viewport per rendered document. Since there are |
| two documents on this page (the main one and the one in the |
| object) there are two viewports. |
| |
| The question becomes, what size is the viewport on the object |
| element. The spec doesn't define this, but if we consider the |
| desired results of the following proposed rule: |
| |
| @viewport { overflow: scroll; } |
| |
| ...I don't think it makes sense for the viewport to be anything |
| other than the size of the object element's box. |
| |
| --> |
| |
| </body> |
| </html> |
