localnotification.scm

#|
LambdaNative - a cross-platform Scheme framework
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|#

(c-declare #<<end-of-c-declare

#ifdef IOS
  extern char localnotification_msg[100];
  extern double localnotification_timestamp;
  extern int localnotification_gotmsg;
  int ios_localnotification_schedule(char*, double, int, char*);
  int ios_localnotification_schedule_batch(char*[], double*, int*, char*[], int, int*);
  int ios_localnotification_cancelall();
  int ios_localnotification_cancel(int id);
  void ios_localnotification_renumber();
#elif ANDROID
  extern char localnotification_msg[100];
  extern double localnotification_timestamp;
  extern int localnotification_gotmsg;
  int android_localnotification_schedule(char*, double, int, char*);
  int android_localnotification_schedule_batch(char*[], double*, int*, char*[], int, int*);
  int android_localnotification_cancel(int id);
  int android_localnotification_cancelall();
#else
  char localnotification_msg[100];
  double localnotification_timestamp = 0;
  int localnotification_gotmsg = 0;
#endif

void localnotification_renumber(){
#ifdef IOS
  ios_localnotification_renumber();
#endif
}

int localnotification_schedule_batch(char* text[], double* time, int* repeattime, char* sounds[], int len, int* ret){
#ifdef IOS
  return ios_localnotification_schedule_batch(text,time,repeattime,sounds,len,ret);
#elif ANDROID
  return android_localnotification_schedule_batch(text,time,repeattime,sounds,len,ret);
#endif
  return 0;
}

int localnotification_schedule(char* text, double time, int repeatmin, char* soundfile){
#ifdef IOS
  return ios_localnotification_schedule(text, time, repeatmin, soundfile);
#elif ANDROID
  return android_localnotification_schedule(text, time, repeatmin, soundfile);
#endif
  return 0;
}

int localnotification_cancelall(){
#ifdef IOS
  return ios_localnotification_cancelall();
#elif ANDROID
  return android_localnotification_cancelall();
#endif
  return 0;
}

int localnotification_cancel(int id){
#ifdef IOS
  return ios_localnotification_cancel(id);
#elif ANDROID
  return android_localnotification_cancel(id);
#endif
  return 0;
}

void localnotification_resetmsg(){
  localnotification_gotmsg = 0;
}

end-of-c-declare
)

;; Internal variables
(define localnotification:msg "")
(define localnotification:timestamp 0.)

;; Create local notification
(define (localnotification:validate lst)
  (let ((str (car lst))
        (time (flo (cadr lst)))
        (repeat (if (fx>= (length lst) 3) (fix (caddr lst)) 0))
        (sound (if (fx= (length lst) 4) (cadddr lst) "")))
    (if (and (> time ##now) (string? str) (fx<= (string-length str) 100))
      (list str time repeat sound)
      (list "" 0 0 "")
    )
  ))

(define (localnotification-schedule str time . repeataftermin_customsound)
  (let ((nf (localnotification:validate (append (list str time) repeataftermin_customsound))))
    (if (> (cadr nf) 0)
      (let ((ret ((c-lambda (char-string double int char-string) int
                   "___result=localnotification_schedule(___arg1,___arg2,___arg3,___arg4);")
                   (car nf) (cadr nf) (caddr nf) (cadddr nf))))
        (if (fx> ret 0) (localnotification:renumber))
        (if (fx> ret 0) ret #f)
      )
      #f
    )
  ))

(define (localnotification-schedule-batch nfs0)
  (let* ((nfs (map localnotification:validate nfs0))
         (len (length nfs))
         (ret (make-u32vector len 0))
         (texts (map car nfs))
         (times (list->f64vector (map cadr nfs)))
         (repeats (list->u32vector (map caddr nfs)))
         (sounds (map cadddr nfs))
         (r ((c-lambda (nonnull-char-string-list scheme-object scheme-object nonnull-char-string-list int scheme-object) bool
           "___result=localnotification_schedule_batch(___CAST(char**,___BODY_AS(___arg1,___tSUBTYPED)),
            ___CAST(double*,___BODY_AS(___arg2,___tSUBTYPED)),___CAST(int*,___BODY_AS(___arg3,___tSUBTYPED)),
            ___CAST(char**,___BODY_AS(___arg4,___tSUBTYPED)),___arg5,___CAST(int*,___BODY_AS(___arg6,___tSUBTYPED)));")
           texts times repeats sounds len ret)))
    (if r (localnotification:renumber))
    (map (lambda (l) (if (fx> l 0) l #f)) (u32vector->list ret))
  ))

;; Renumber notifications
(define (localnotification:renumber)
  ((c-lambda () void "localnotification_renumber")))

;; Clear notifications
(define (localnotification:cancel id)
  ((c-lambda (int) int "___result=localnotification_cancel(___arg1);") id))
(define (localnotification-cancel id)
  (let ((ret (localnotification:cancel id)))
    (if (fx> ret 0) (localnotification:renumber))
    ret
  ))
(define (localnotification-cancel-batch ids)
  (let ((ret (map (lambda (n) (localnotification:cancel n)) ids)))
    (localnotification:renumber)
    ret
  ))
(define (localnotification-cancelall)
  ((c-lambda () int "___result=localnotification_cancelall();")))

;; Retrieve local notification
(define (localnotification-getalert)
  (if ((c-lambda () bool "___result=localnotification_gotmsg;"))
    (begin
      ((c-lambda () void "localnotification_resetmsg"))
      (set! localnotification:msg ((c-lambda () char-string "___result=localnotification_msg;")))
      (set! localnotification:timestamp ((c-lambda () double "___result=localnotification_timestamp;")))
      localnotification:msg
    )
    #f
  ))

;;eof