SetTimeout无法在on鼠标按下/ touchstart功能上执行 [英]SetTimeout not executing for on mousedown/touchstart function
响应桌面和移动设备中的touchstart和mousedown,而无需嗅探 [英]Responding to touchstart and mousedown in desktop and mobile, without sniffing
获取相对于父项的位置,而不是在mousedown / touchstart上的视口 [英]Get position relative to parent not viewport on mousedown / touchstart