@Nullable
public static String stringFromSelector(Pointer selector) {
ID id = myFoundationLibrary.NSStringFromSelector(selector);
if (id.intValue() > 0) {
return toStringViaUTF8(id);
}
return null;
}
@Nullable
public static String toStringViaUTF8(ID cfString) {
if (cfString.intValue() == 0) return null;
int lengthInChars = myFoundationLibrary.CFStringGetLength(cfString);
int potentialLengthInBytes = 3 * lengthInChars + 1; // UTF8 fully escaped 16 bit chars, plus nul
byte[] buffer = new byte[potentialLengthInBytes];
byte ok =
myFoundationLibrary.CFStringGetCString(
cfString, buffer, buffer.length, FoundationLibrary.kCFStringEncodingUTF8);
if (ok == 0) throw new RuntimeException("Could not convert string");
return Native.toString(buffer);
}
public static boolean isPackageAtPath(@NotNull final String path) {
final ID workspace = invoke("NSWorkspace", "sharedWorkspace");
final ID result = invoke(workspace, createSelector("isFilePackageAtPath:"), nsString(path));
return result.intValue() == 1;
}