Cocoa Button that will light up with mouse over
Setup a tracking area for the view with addTrackingArea (provided you are using Leopard or newer OS X). You'll get events on mouse enter and mouse exit.
something below maybe the answer.
class HoverButton: NSButton{
var backgroundColor: NSColor?
var hoveredBackgroundColor: NSColor?
var pressedBackgroundColor: NSColor?
private var hovered: Bool = false
override var wantsUpdateLayer:Bool{
return true
}
required init?(coder: NSCoder) {
super.init(coder: coder)
self.commonInit()
}
override init(frame frameRect: NSRect) {
super.init(frame: frameRect)
self.commonInit()
}
func commonInit(){
self.wantsLayer = true
self.createTrackingArea()
self.hovered = false
self.hoveredBackgroundColor = NSColor.selectedTextBackgroundColor()
self.pressedBackgroundColor = NSColor.selectedTextBackgroundColor()
self.backgroundColor = NSColor.clearColor()
}
private var trackingArea: NSTrackingArea!
func createTrackingArea(){
if(self.trackingArea != nil){
self.removeTrackingArea(self.trackingArea!)
}
let circleRect = self.bounds
let flag = NSTrackingAreaOptions.MouseEnteredAndExited.rawValue + NSTrackingAreaOptions.ActiveInActiveApp.rawValue
self.trackingArea = NSTrackingArea(rect: circleRect, options: NSTrackingAreaOptions(rawValue: flag), owner: self, userInfo: nil)
self.addTrackingArea(self.trackingArea)
}
override func mouseEntered(theEvent: NSEvent) {
self.hovered = true
NSCursor.pointingHandCursor().set()
self.needsDisplay = true
}
override func mouseExited(theEvent: NSEvent) {
self.hovered = false
NSCursor.arrowCursor().set()
self.needsDisplay = true
}
override func updateLayer() {
if(hovered){
if (self.cell!.highlighted){
self.layer?.backgroundColor = pressedBackgroundColor?.CGColor
}
else{
self.layer?.backgroundColor = hoveredBackgroundColor?.CGColor
}
}
else{
self.layer?.backgroundColor = backgroundColor?.CGColor
}
}
}
link: https://github.com/fancymax/HoverButton