refactor and implement autoAnimateSlides template

src/nimiSlides.nim

@@ -4,6 +4,9 @@ import nimib
 import nimib/[capture, config]
 import markdown
 
+import nimiSlides/[autoAnimation, conversions]
+export autoAnimation, conversions
+
 type
   FragmentAnimation* = enum
     fadeIn = "fade-in" # the default
@@ -396,24 +399,6 @@ template listItem*(animation: FragmentAnimation, body: untyped) =
 
 template listItem*(body: untyped) =
   listItem(fadeInThenSemiOut, body)
-
-
-proc toHSlice*(h: HSlice[int, int]): HSlice[int, int] = h
-proc toHSlice*(h: int): HSlice[int, int] = h .. h
-
-
-proc toSet*(x: set[range[0..65535]]): set[range[0..65535]] = x
-proc toSet*(x: int): set[range[0..65535]] = {x}
-proc toSet*(x: Slice[int]): set[range[0..65535]] =
-  for y in x:
-    result.incl y
-proc toSet*(x: seq[Slice[int]]): set[range[0..65535]] =
-  for s in x:
-    result.incl s.toSet()
-proc toSet*(x: set[range[0..255]]): set[range[0..65535]] =
-  for y in x:
-    result.incl y
-
 
 template animateCode*(lines: string, body: untyped) =
   newNbCodeBlock("animateCode", body):

src/nimiSlides/autoAnimation.nim

@@ -0,0 +1,19 @@
+import nimib
+import ./[conversions]
+
+template autoAnimateSlides*(nSlides: int, body: untyped) =
+  for autoAnimateCounter {.inject.} in 1 .. nSlides:
+    slide(slideOptions(autoAnimate=true)):
+      body
+
+template showOn*(showOnSlides: varargs[set[range[0..65535]], toSet], body: untyped) = # how to auto convert to set like in varargs?
+  # use vararg and union all results!
+  # This way you don't need to use the set syntax but can pass in `showOn(1, 2, 3)` instead.
+  var totalSet: set[range[0..65535]]
+  for x in showOnSlides:
+    totalSet.incl x
+
+  if autoAnimateCounter in totalSet:
+    body
+  # The if-statement will cause some troubles for some code if it assumes it will be run in the same scope :/
+  # To fix that we would need to require static inputs

src/nimiSlides/conversions.nim

@@ -0,0 +1,15 @@
+proc toHSlice*(h: HSlice[int, int]): HSlice[int, int] = h
+proc toHSlice*(h: int): HSlice[int, int] = h .. h
+
+
+proc toSet*(x: set[range[0..65535]]): set[range[0..65535]] = x
+proc toSet*(x: int): set[range[0..65535]] = {x}
+proc toSet*(x: Slice[int]): set[range[0..65535]] =
+  for y in x:
+    result.incl y
+proc toSet*(x: seq[Slice[int]]): set[range[0..65535]] =
+  for s in x:
+    result.incl s.toSet()
+proc toSet*(x: set[range[0..255]]): set[range[0..65535]] =
+  for y in x:
+    result.incl y