1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/reftests/native-theme/scroll-thumb-minimum-size-notheme.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,32 @@
1.4 +<!DOCTYPE html>
1.5 +<meta http-equiv="msthemecompatible" content="no">
1.6 +<div style="width: 200px; height: 200px; overflow: scroll;">
1.7 + <div style="width: 3725px; height: 3725px"></div>
1.8 +</div>
1.9 +<!--
1.10 +The size of the inner div is computed as follow:
1.11 +
1.12 +Input:
1.13 + outer_div_size: size of the div containing the scrollbar
1.14 + button_size: size of the scrollbar arrow buttons
1.15 + scrollbar_thickness: width/height of a vertical/horizontal scrollbar respectively
1.16 + thumb_size: height/width of the thumb of a vertical/horizontal scrollbar respectively
1.17 +Output:
1.18 + inner_div_size: size of the div to be scrolled
1.19 +
1.20 +Formula:
1.21 + slider_size = outer_div_size - 2 * button_size - scrollbar_thickness
1.22 + thumb_size = slider_size * (outer_div_size / inner_div_size)
1.23 + which gives:
1.24 + inner_div_size = (outer_div_size - 2 * button_size - scrollbar_thickness) * (outer_div_size / thumb_size)
1.25 +
1.26 +Testcase constants:
1.27 + outer_div_size = 200
1.28 +
1.29 +On XP/Vista at 96 dpi with theme disabled:
1.30 + thumb_size = 8 (minimum size)
1.31 + button_size = 17
1.32 + scrollbar_thickness = 17
1.33 +
1.34 + inner_div_size = (200 - 2 * 17 - 17) * (200 / 8) = 3725
1.35 +-->
