| Section "InputClass" |
| Identifier "generic mouse for Chromium OS" |
| MatchIsPointer "on" |
| MatchDevicePath "/dev/input/event*" |
| # Map mouse vertical scroll wheel to buttons 8 and 9. |
| # These scroll button events are only used for mice and processed slightly |
| # differently in Chrome than buttons 4 and 5, which are used for trackpad |
| # scrolling. |
| # Unfortunately, this disables mouse wheel scrolling in the crosh shell. |
| Option "ButtonMapping" "1 2 3 8 9" |
| # 3-Button Mouse emulation, while useful for copy/paste, causes mouse |
| # clicks to miss their targets when the mouse is moving quickly. |
| # This is particularly noticeable on quick click+drags. |
| Option "Emulate3Buttons" "false" |
| Option "AccelerationProfile" "8" # Chromium accel profile |
| Option "VelocityScale" "1" |
| Option "ConstantDeceleration" "1000" |
| Option "Evdev Wheel Button Acceleration" "0" |
| Option "Evdev Wheel Axes Acceleration" "1" |
| # Some mice expose Absolute axes, which take precedence over relative, |
| # which causes all axes valuator labels to be absolute. E.g., we get |
| # ABS_X instead of REL_X for horizontal movement. This is especially |
| # bad for scroll wheel activity, b/c Chrome looks for specific |
| # relative valuators for that; if absolute valuators are used, scroll |
| # wheel won't work. |
| Option "IgnoreAbsoluteAxes" "true" |
| EndSection |
