func (ni *NotifyIcon) publishMouseEvent(publisher *MouseEventPublisher, button MouseButton) {
var p win.POINT
if !win.GetCursorPos(&p) {
lastError("GetCursorPos")
}
publisher.Publish(int(p.X), int(p.Y), button)
}
func notifyIconWndProc(hwnd win.HWND, msg uint32, wParam, lParam uintptr) (result uintptr) {
// Retrieve our *NotifyIcon from the message window.
ptr := win.GetWindowLongPtr(hwnd, win.GWLP_USERDATA)
ni := (*NotifyIcon)(unsafe.Pointer(ptr))
switch lParam {
case win.WM_LBUTTONDOWN:
ni.publishMouseEvent(&ni.mouseDownPublisher, LeftButton)
case win.WM_LBUTTONUP:
ni.publishMouseEvent(&ni.mouseUpPublisher, LeftButton)
case win.WM_RBUTTONDOWN:
ni.publishMouseEvent(&ni.mouseDownPublisher, RightButton)
case win.WM_RBUTTONUP:
ni.publishMouseEvent(&ni.mouseUpPublisher, RightButton)
win.SendMessage(hwnd, msg, wParam, win.WM_CONTEXTMENU)
case win.WM_CONTEXTMENU:
if ni.contextMenu.Actions().Len() == 0 {
break
}
win.SetForegroundWindow(hwnd)
var p win.POINT
if !win.GetCursorPos(&p) {
lastError("GetCursorPos")
}
actionId := uint16(win.TrackPopupMenuEx(
ni.contextMenu.hMenu,
win.TPM_NOANIMATION|win.TPM_RETURNCMD,
p.X,
p.Y,
hwnd,
nil))
if actionId != 0 {
if action, ok := actionsById[actionId]; ok {
action.raiseTriggered()
}
}
return 0
}
return win.DefWindowProc(hwnd, msg, wParam, lParam)
}