169608 2008-08-22 20:43:55 +0000 Background-attachment: scroll should scroll within the containing block, not within the viewport 2009-01-26 12:19:52 +0000 1 1 2 Applications konqueror khtml renderer 4.1.0 Microsoft Windows Microsoft Windows VERIFIED FIXED NOR normal --- 0 browserbugs2 konqueror-bugs-null germain 0 oldest_to_newest 640055 0 browserbugs2 2008-08-22 20:43:55 +0000 Version: (using KDE 4.1.0) Compiler: cc OS: Linux Installed from: Debian stable Packages According to CSS 1, section 5.3.5 and CSS 2.1, section 14.2.1, when background-attachment is scroll, then an image should scroll within its containing block, not within the viewport. Instructions: resize vertically the browser window to change the vertical dimension of the viewport. Expected results: the lime squared + image should remain vertically in the middle of its containining block, which is the body which has a lime border. The lime squared + image should not scroll up and down. Relevant URLs: http://www.gtalbot.org/BrowserBugsSection/MSIE7Bugs/#bug7 http://www.gtalbot.org/BrowserBugsSection/MSIE7Bugs/BackgroundCenterOfBodyBugInIE7.html https://bugs.webkit.org/show_bug.cgi?id=10794 Regards, Gérard 640373 1 browserbugs2 2008-08-23 23:10:14 +0000 Konqueror 4.1 / Windows XP screenshot: http://browsershots.org/http://www.gtalbot.org/BrowserBugsSection/MSIE7Bugs/BackgroundCenterOfBodyBugInIE7.html http://browsershots.org/screenshots/c499d76efbc8944534c54e66b90adf49/ http://api.browsershots.org/png/original/c4/c499d76efbc8944534c54e66b90adf49.png In such screenshot, the lime square [+] image should be vertically in the middle of the lime bordered <body> element, at all times, regardless of browser window viewport vertical dimension/height. 642478 2 browserbugs2 2008-08-31 18:48:01 +0000 CSS 2.1, section 14.2 The Background states: " The background of the root element becomes the background of the canvas and covers the entire canvas, anchored (for 'background-position') at the same point as it would be if it was painted only for the root element itself. The root element does not paint this background again. " http://www.w3.org/TR/CSS21/colors.html#background indicating that the background-origin to be considered for background-position is relative to the root element, not the canvas. 642565 3 germain 2008-09-01 02:07:34 +0000 SVN commit 855521 by ggarand: Consider the real root background box when computing some background properties - not the one that is extended on the whole canvas. Patch based on work by Anatoli Papirovski <apapirovski mac dot com> BUG: 169608 M +15 -2 render_box.cpp --- trunk/KDE/kdelibs/khtml/rendering/render_box.cpp #855520:855521 @@ -575,8 +575,21 @@ } } - int pw = w - hpab; - int ph = h - vpab; + int pw, ph; + if (isRoot()) { + // the root's background box 'spills out' to cover the whole canvas, so we have to + // go back to its true edge for the purpose of computing background-size + // and honouring background-origin + pw = width() - hpab; + ph = height() - vpab; + left += marginLeft(); + hpab += marginLeft() + marginRight(); + vpab += marginTop() + marginBottom(); + top += marginTop(); + } else { + pw = w - hpab; + ph = h - vpab; + } scaledImageWidth = pw; scaledImageHeight = ph; calculateBackgroundSize(bgLayer, scaledImageWidth, scaledImageHeight); 705884 4 browserbugs2 2009-01-26 12:19:52 +0000 I get expected results with Konqueror 4.1.3 for Windows. Marking as VERIFIED