Slides can now open files

editor/mapedit.fnl

@@ -186,7 +186,8 @@
 (fn advanced? [object]
   (or object.advanced
       (and (= object.advanced nil)
-           object.func)))
+           (not= object.func "")
+           (not= object.func nil))))
 
 (fn MapEditView.draw-object-advanced-editor [self object x y]
   (let [(func y) (textfield self "Word" object.func x y 100 200)

presentation/engine.fnl

@@ -19,22 +19,32 @@
   (set self.imagecache {})
   (set self.islide 1)
   (set self.ielem 0)
+  (set self.cleanup {})
   (self:advance))
 
+(fn SlideshowView.cleanup-slide [self]
+  (each [_ f (pairs self.cleanup)] (f))
+  (set self.cleanup {}))
+
 (fn SlideshowView.next-slide [self]
   (set self.islide (if (>= self.islide (length self.slides)) 1 (+ self.islide 1)))
   (set self.ielem 0)
+  (self:cleanup-slide)
   (self:advance))
 
 (fn SlideshowView.prev-slide [self]
   (set self.islide (if (<= self.islide 1) (length self.slides) (- self.islide 1)))
   (set self.ielem (+ 1 (length (. self.slides self.islide))))
+  (self:cleanup-slide)
   (self:back))
 
 (fn SlideshowView.ielemNext [self ielem di]
   (let [slide (. self.slides self.islide)
         elem (. slide ielem)]
     (when elem
+      (when elem.action
+        (if (= di 1) (tset self.cleanup ielem (elem:action))
+            (. self.cleanup ielem) ((. self.cleanup ielem))))
       (if elem.pause-after ielem
         (self:ielemNext (+ ielem di) di)))))
 

presentation/slides.fnl

@@ -1,6 +1,7 @@
 (local util (require :lib.util))
 (local lume (require :lib.lume))
 (local {: parse} (util.require :presentation.engine))
+(local core (require :core))
 (local style (require :core.style))
 (local h
   {:style true
@@ -20,9 +21,25 @@
 
 (fn bgimg [filename] {:image filename :justify :center :overlay true :alpha 0.3 :topPadding 0})
 
+(fn view-cleanup [view]
+  (let [root core.root_view.root_node
+        node (root:get_node_for_view view)]
+    (when node (node:close_active_view root))))
+
+(fn openfile [filename ?split]
+  {:action (fn []
+    (let [focused-view core.active_view
+          d (core.open_doc filename)
+          focused-node (core.root_view:get_active_node)
+          node (when ?split (focused-node:split ?split))
+          view (core.root_view:open_doc d)]
+      (when ?split (core.set_active_view focused-view)) ; don't switch focus
+      #(view-cleanup view)))})
+
 (parse [
-  [h "" ""
-     "Honeylisp" ""
+  [h "" "" ""
+     "Honeylisp"
+     "" "" ""
    (np **) "Jeremy Penner"
            "https://spindleyq.itch.io/"
            "https://blog.information-superhighway.net/"
@@ -43,31 +60,21 @@
    ** "In 2020, I did the Global Game Jam on my 286."
       "Finished 'Shareware Episode 1' a couple of months later."]
   [h "The Idea"
-   ** "What if I took a similar DIY approach with modern tools?"
+   ** "What if I took a similar DIY approach with modern tooling?"
       "* I'd done Forth; what about Lisp?"
+      "  https://fennel-lang.org/"
       "* How far can I push fast iterative development?"
       "* Could I integrate an editor?"
       "* How can I leverage emulation?"]
-  [h "Honeylisp"
-   ** "* Written in Fennel, a Lisp that compiles to Lua"
-      "* Assembler"
-      "* Forth-like 'virtual machine' / inner interpreter"
-      "* 'lite' editor, ported to love2d"
-      "  * Integrated custom editors"
-      "* MAME integration"
-      "  * Upload new builds directly into RAM"
-      "  * Interactive code injection"
-      "  * Hot code reload"
-      "* Tape upload"
-      "* ProDOS disk image generation"]
-  ;; DEMO before tech dive
-  [h "Assembler"
+  [h "Step 1: Assembler"
      ** "Represent instructions using Fennel data literals"
+      (openfile :asm/asm.fnl :right)
       "  [:lda 0xff]"
       "Represent labels with Fennel strings"
       "  :loop [:bne :loop]"
       "Lexical scope with nested blocks"
       "  [:block :loop (generate-loop-code) [:bne :loop]]"]
+;   ;; DEMO before tech dive
   [h "Wait WTF Is An Assembler"
    ** "It's just converting mnemonics to bytes, right?"
       {:image "presentation/pics/assembly-markup.png" :justify :center :pause-after true}
@@ -78,7 +85,7 @@
       "  [:db 123] [:dw 12345] [:bytes \"HELLO WORLD\"] [:ref :hello]"
       "Must be able to line up bytes on page boundaries"
       "  [:align 0x100]"]
-  [h "Virtual Machine"
+  [h "Step 2: Virtual Machine"
      {:image "presentation/pics/thinkhard.png" :justify :center}
    ** "Not super keen on writing a complicated compiler"
       "I'm already very comfortable with Forth"