2008 06 08Double and Triple Click
OK, that's pretty stupid :) but I had trouble figuring out what part of Cocoa handled double clicks. Turns out there's a
clickCount message in NSEvent that will do just that.
Compared to Javascript :
| JS | ObjC | |
| mouse down | onmousedown | mouseDown |
| mouse up | onmouseup | mouseUp |
| click | onclick | mouseUp, check [event clickCount]==1 |
| double click | ondblclick | mouseUp, check [event clickCount]==2 |
| triple click paragraph selection | - | mouseUp, check [event clickCount]==3 |
clickCount also lives for mousedown, so you can check things like triple mouse down. No great use I suppose but it's there.