The Tor Browser / file comparison
comparison: layout/reftests/native-theme/scroll-thumb-minimum-size-notheme.html
layout/reftests/native-theme/scroll-thumb-minimum-size-notheme.html
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:cf089b5dd153 |
|---|---|
| 1 <!DOCTYPE html> | |
| 2 <meta http-equiv="msthemecompatible" content="no"> | |
| 3 <div style="width: 200px; height: 200px; overflow: scroll;"> | |
| 4 <div style="width: 3725px; height: 3725px"></div> | |
| 5 </div> | |
| 6 <!-- | |
| 7 The size of the inner div is computed as follow: | |
| 8 | |
| 9 Input: | |
| 10 outer_div_size: size of the div containing the scrollbar | |
| 11 button_size: size of the scrollbar arrow buttons | |
| 12 scrollbar_thickness: width/height of a vertical/horizontal scrollbar respectively | |
| 13 thumb_size: height/width of the thumb of a vertical/horizontal scrollbar respectively | |
| 14 Output: | |
| 15 inner_div_size: size of the div to be scrolled | |
| 16 | |
| 17 Formula: | |
| 18 slider_size = outer_div_size - 2 * button_size - scrollbar_thickness | |
| 19 thumb_size = slider_size * (outer_div_size / inner_div_size) | |
| 20 which gives: | |
| 21 inner_div_size = (outer_div_size - 2 * button_size - scrollbar_thickness) * (outer_div_size / thumb_size) | |
| 22 | |
| 23 Testcase constants: | |
| 24 outer_div_size = 200 | |
| 25 | |
| 26 On XP/Vista at 96 dpi with theme disabled: | |
| 27 thumb_size = 8 (minimum size) | |
| 28 button_size = 17 | |
| 29 scrollbar_thickness = 17 | |
| 30 | |
| 31 inner_div_size = (200 - 2 * 17 - 17) * (200 / 8) = 3725 | |
| 32 --> |
