From 8d00476ed296e3a43de28f5719d2d289d4436ad9 Mon Sep 17 00:00:00 2001
From: Hans Dijkema <hans@dijkewijk.nl>
Date: Tue, 3 Mar 2026 16:42:10 +0100
Subject: [PATCH] -

---
 private/css.rkt                               | 211 +++++
 private/menu.rkt                              | 178 ++++
 .../racket-webview-ffi.rkt                    |   0
 .../racket-webview-qt.rkt                     |   2 +-
 .../racket-webview.rkt                        |  26 +-
 private/utils.rkt                             |  64 ++
 private/web-racket.rkt                        | 819 ++++++++++++++++++
 utils.rkt                                     |  22 -
 8 files changed, 1289 insertions(+), 33 deletions(-)
 create mode 100644 private/css.rkt
 create mode 100644 private/menu.rkt
 rename racket-webview-ffi.rkt => private/racket-webview-ffi.rkt (100%)
 rename racket-webview-qt.rkt => private/racket-webview-qt.rkt (99%)
 rename racket-webview.rkt => private/racket-webview.rkt (89%)
 create mode 100644 private/utils.rkt
 create mode 100644 private/web-racket.rkt
 delete mode 100644 utils.rkt

diff --git a/private/css.rkt b/private/css.rkt
new file mode 100644
index 0000000..1c2d8ae
--- /dev/null
+++ b/private/css.rkt
@@ -0,0 +1,211 @@
+(module css racket/base
+
+  (require racket/string)
+
+  (provide css-style
+           css-style->list
+
+           set-css!
+           get-css
+           clear-css!
+           css-keys
+
+           css-style?
+
+           string->css-style
+           css-style->string
+
+           stylesheet
+           stylesheet?
+           
+           stylesheet-set!
+           stylesheet-get
+           stylesheet-clear!
+           stylesheet-keys
+
+           stylesheet->string
+           string->stylesheet
+           )
+
+  (define-struct style
+    (
+     [style #:auto #:mutable]
+     )
+    #:auto-value #f
+    #:transparent)
+
+  (define-struct css-stylesheet
+    (
+     [sheet #:auto #:mutable]
+     )
+     #:auto-value (make-hashalw)
+    #:transparent)
+
+  (define st-style style-style)
+  (define st-style! set-style-style!)
+  (define make-st make-style)
+  (define st? style?)
+  (define stylesheet? css-stylesheet?)
+  (define make-stylesheet make-css-stylesheet)
+  (define stylesheet-sheet css-stylesheet-sheet)
+  
+  
+  (define (css-style style_or_styles . args)
+    (if (symbol? style_or_styles)
+        (let ((css (if (null? args) "" (car args)))
+              (st (make-st)))
+          (st-style! st (make-hash))
+          (hash-set! (st-style st) style_or_styles css)
+          st)
+        (let* ((st (make-st))
+               (h (begin (st-style! st (make-hash)) (st-style st))))
+          (for-each (lambda (st)
+                      (let ((entry (car st))
+                            (css (cadr st)))
+                        (hash-set! h entry (format "~a" css))))
+                    style_or_styles)
+          st)))
+
+  (define (set-css! st entry css)
+    (hash-set! (st-style st) entry css)
+    st)
+
+  (define (get-css st entry)
+    (hash-ref (st-style st) entry ""))
+
+  (define (clear-css! st entry)
+    (hash-remove! (st-style st) entry))
+
+  (define (css-style? st)
+    (st? st))
+
+  (define (css-keys st)
+    (hash-keys (st-style st)))
+
+  (define (css-style->list st)
+    (let* ((h (st-style st))
+           (keys (hash-keys h)))
+      (map (lambda (k)
+             (list k (hash-ref h k)))
+           keys)))
+
+  (define (css-style->string st . custom-sep)
+    (let* ((sep (if (null? custom-sep) " " (car custom-sep)))
+           (h (st-style st))
+           (keys (hash-keys h)))
+      (letrec ((f (lambda (keys)
+                    (if (null? keys)
+                        ""
+                        (let ((key (car keys)))
+                          (string-append (symbol->string key)
+                                         ": "
+                                         (hash-ref h key)
+                                         ";"
+                                         sep
+                                         (f (cdr keys))))
+                        ))
+                  ))
+        (string-trim (f keys)))))
+
+
+  (define re-style-split #px"\\s*[;]\\s*")
+  (define re-style-kv-split #px"\\s*[:]\\s*")
+  
+  (define (split-style-string style)
+    (let ((sp-style (regexp-split re-style-split style)))
+      (letrec ((f (lambda (entries)
+                    (if (null? entries)
+                        '()
+                        (let* ((entry (string-trim (car entries)))
+                               (kv (regexp-split re-style-kv-split entry))
+                               (key (car kv))
+                               (skey (if (string? key)
+                                         (string->symbol key)
+                                         key))
+                               (val (if (= (length kv) 2) (cadr kv) ""))
+                               (keyval (list skey val))
+                               )
+                          (if (string=? entry "")
+                              (f (cdr entries))
+                              (cons keyval (f (cdr entries)))))
+                        ))
+                  ))
+        (f sp-style))))
+
+
+  
+  (define (string->css-style style-str)
+    (css-style (split-style-string style-str)))
+
+
+  (define (stylesheet entry_or_entries . style)
+    (if (symbol? entry_or_entries)
+        (let* ((st (car style))
+               (ss (make-stylesheet))
+               (h (stylesheet-sheet ss)))
+          (if (css-style? st)
+              (begin
+                (hash-set! h entry_or_entries st)
+                ss)
+              (error "A css-style is expected")))
+        (let* ((ss (make-stylesheet))
+               (h (stylesheet-sheet ss)))
+          (for-each (lambda (entry)
+                      (let* ((key (car entry))
+                             (s (cadr entry)))
+                        (if (css-style? s)
+                            (hash-set! h key s)
+                            (error (format "A css-style is expected for ~a"
+                                           key)))
+                        ))
+                    entry_or_entries)
+          ss)))
+
+  (define (string->stylesheet str)
+    (error "Not implemented yet")
+    #t)
+
+  (define (stylesheet-entry->string e)
+    (if (list? e)
+        (if (null? e)
+            ""
+            (string-append (stylesheet-entry->string (car e))
+                           " "
+                           (stylesheet-entry->string (cdr e))))
+        (format "~a" e)))
+
+  (define (stylesheet->string ss)
+    (let* ((h (stylesheet-sheet ss))
+           (keys (hash-keys h))
+           (sep "\n"))
+      (letrec ((f (lambda (keys)
+                    (if (null? keys)
+                        ""
+                        (let* ((key (car keys))
+                               (st (hash-ref h key)))
+                          (string-append (stylesheet-entry->string key) " {\n  "
+                                         (css-style->string  st "\n  ")
+                                         "\n}\n"
+                                         (f (cdr keys))))))
+                  ))
+        (f keys))))
+
+  (define (stylesheet-set! ss key style)
+    (let ((h (stylesheet-sheet ss)))
+      (hash-set! h key style)
+      ss))
+
+  (define (stylesheet-get ss key)
+    (let ((h (stylesheet-sheet ss)))
+      (hash-ref h key (make-st))))
+
+  (define (stylesheet-clear! ss key)
+    (let ((h (stylesheet-sheet ss)))
+      (hash-remove! h key)))
+
+  (define (stylesheet-keys ss)
+    (let ((h (stylesheet-sheet ss)))
+      (hash-keys h)))
+  
+  
+  ); end of module
\ No newline at end of file
diff --git a/private/menu.rkt b/private/menu.rkt
new file mode 100644
index 0000000..f36f55f
--- /dev/null
+++ b/private/menu.rkt
@@ -0,0 +1,178 @@
+(module menu racket/base
+
+  (require json)
+  
+  (provide menu
+           menu-item
+           is-menu?
+           menu-set-callback!
+           menu-set-icon!
+           menu-set-title!
+           menu->json
+           with-menu-item
+           menu-for-each
+           ww-menu-item-callback
+           ww-menu-item-id
+           ww-menu-id
+           )
+
+
+  (define-struct ww-menu-item
+    (id [title #:mutable] [icon-file #:mutable] [callback #:mutable] [submenu #:mutable] [separator #:mutable])
+    #:transparent)
+  
+  (define-struct ww-menu
+    (id [items #:mutable])
+    #:transparent
+    )
+
+  (define (is-menu? mnu)
+    (if (ww-menu? mnu)
+        (if (list? (ww-menu-items mnu))
+            (letrec ((f (lambda (m)
+                          (if (null? m)
+                              #t
+                              (if (ww-menu-item? (car m))
+                                  (if (eq? (ww-menu-item-submenu (car m)) #f)
+                                      (f (cdr m))
+                                      (and (is-menu? (ww-menu-item-submenu (car m)))
+                                           (f (cdr m))))
+                                  #f)
+                              ))
+                        ))
+              (f (ww-menu-items mnu)))
+            #f)
+        #f))
+
+  (define (menu . items)
+    (let ((menu-id #f))
+      (when (symbol? (car items))
+        (set! menu-id (car items))
+        (set! items (cdr items)))
+      (when (list? (car items))
+        (set! items (car items)))
+      (make-ww-menu menu-id items)))
+
+  (define (menu-item id title
+                     #:icon-file [icon-file #f]
+                     #:callback [callback (lambda args #t)]
+                     #:submenu [submenu #f]
+                     #:separator [separator #f])
+    (unless (symbol? id)
+      (error "menu-item needs an id of symbol?"))
+    (unless (string? title)
+      (error "menu-item needs a title of string?"))
+    (unless (or (eq? icon-file #f) (string? icon-file) (path? icon-file))
+      (error "menu-item's optional argument icon-file must be #f,  string? or path?"))
+    (unless (or (eq? submenu #f) (is-menu? submenu))
+      (error "menu-item's optional argument submenu must be #f or is-menu?"))
+    (unless (boolean? separator)
+      (error "menu-item's optional argument separator must be boolean?"))
+    (make-ww-menu-item id title icon-file callback submenu separator))
+
+  (define (menu->hash menu . for-json)
+    (let ((fj (if (null? for-json) #f (car for-json))))
+      (unless (is-menu? menu)
+        (error "menu->hash must be called with a menu"))
+      (let* ((items (ww-menu-items menu))
+             (r (map (λ (item)
+                       (let ((h (make-hasheq)))
+                         (hash-set! h 'id (format "~a" (ww-menu-item-id item)))
+                         (hash-set! h 'name (ww-menu-item-title item))
+                         (unless (eq? (ww-menu-item-icon-file item) #f)
+                           (hash-set! h 'icon (ww-menu-item-icon-file item)))
+                         (unless (eq? (ww-menu-item-submenu item) #f)
+                           (hash-set! h 'submenu (menu->hash (ww-menu-item-submenu item) fj)))
+                         (unless (eq? (ww-menu-item-separator item) #f)
+                           (hash-set! h 'separator #t))
+                         h
+                         )) items))
+             )
+        (let ((h (make-hasheq)))
+          (hash-set! h 'menu r)
+          (hash-set! h 'id (if fj (format "~a" (ww-menu-id menu)) (ww-menu-id menu)))
+          h))))
+
+  (define (menu-for-each menu cb)
+    (let ((items (ww-menu-items menu)))
+      (letrec ((f (λ (items)
+                    (if (null? items)
+                        #t
+                        (let ((item (car items)))
+                          (let ((submenu (ww-menu-item-submenu item)))
+                            (if (eq? submenu #f)
+                                (cb item)
+                                (menu-for-each submenu cb)))
+                          (f (cdr items))
+                          )
+                        )
+                    )
+                  ))
+        (f items))))
+
+  (define (menu->json menu)
+    (let ((o (open-output-string)))
+      (write-json (menu->hash menu #t) o)
+      (get-output-string o)))
+
+  (define (find-menu-item menu id)
+    (let ((items (ww-menu-items menu)))
+      (letrec ((f (λ (items)
+                    (if (null? items)
+                        #f
+                        (let ((item (car items)))
+                          (if (eq? (ww-menu-item-id item) id)
+                              item
+                              (let ((submenu (ww-menu-item-submenu item)))
+                                (if (eq? submenu #f)
+                                    (f (cdr items))
+                                    (let ((found-item (find-menu-item submenu id)))
+                                      (if (eq? found-item #f)
+                                          (f (cdr items))
+                                          found-item))
+                                    ))
+                              ))
+                        ))
+                  ))
+        (f items))))
+
+  (define (with-menu-item menu id cb)
+    (unless (is-menu? menu)
+      (error "menu must be of is-menu?"))
+    (unless (symbol? id)
+      (error "id must be of symbol?"))
+    (let ((item (find-menu-item menu id)))
+      (if (eq? item #f)
+          (error (format "cannot find id'~a in given menu" id))
+          (cb item)))
+    menu)
+      
+  (define (menu-set-title! menu id title)
+    (unless (string? title)
+      (error "title must be of string?"))
+    (with-menu-item menu id
+      (λ (item)
+        (set-ww-menu-item-title! item title))))
+  
+  (define (menu-set-icon! menu id icon)
+    (unless (or (eq? icon #f) (path? icon) (string? icon))
+      (error "title must be of #f, string? or path?"))
+    (with-menu-item menu id
+      (λ (item)
+        (set-ww-menu-item-icon-file! item icon))))
+
+  (define (menu-set-callback! menu id cb)
+    (unless (procedure? cb)
+      (error "callback must be of procedure?"))
+    (with-menu-item menu id
+      (λ (item)
+        (set-ww-menu-item-callback! item cb))))
+          
+  ); end of module
+
+
+
+
+
+  
+  
\ No newline at end of file
diff --git a/racket-webview-ffi.rkt b/private/racket-webview-ffi.rkt
similarity index 100%
rename from racket-webview-ffi.rkt
rename to private/racket-webview-ffi.rkt
diff --git a/racket-webview-qt.rkt b/private/racket-webview-qt.rkt
similarity index 99%
rename from racket-webview-qt.rkt
rename to private/racket-webview-qt.rkt
index bb13019..053b7a7 100644
--- a/racket-webview-qt.rkt
+++ b/private/racket-webview-qt.rkt
@@ -34,7 +34,7 @@
 
 (define lib-type 'release)
 
-(define-runtime-path lib-dir "lib")
+(define-runtime-path lib-dir "../lib")
 
 (define libname (let ((os (system-type 'os*)))
                   (cond ((eq? os 'windows) (format "rktwebview.dll"))
diff --git a/racket-webview.rkt b/private/racket-webview.rkt
similarity index 89%
rename from racket-webview.rkt
rename to private/racket-webview.rkt
index db838d0..e7d301e 100644
--- a/racket-webview.rkt
+++ b/private/racket-webview.rkt
@@ -21,6 +21,7 @@
          webview-move
          webview-resize
          webview-bind!
+         webview-standard-file-getter
          )
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -30,7 +31,7 @@
 (define current-servlet-port 8083)
 (define current-window-nr    1)
 
-(define-runtime-path js-path "js")
+(define-runtime-path js-path "../js")
 
 (define (default-boilerplate-js)
   (let ((file (build-path js-path "boilerplate.js")))
@@ -153,6 +154,18 @@
 (define (webview-run-js wv js)
   (rkt-webview-run-js (wv-handle wv) js))
 
+(define (webview-standard-file-getter base-path
+                                      #:not-exist [on-not-exist (λ (file base-path path) path)]
+                                      )
+  (λ (file)
+    (let ((f (if (string=? file "/") "index.html" file)))
+      (when (string-prefix? f "/")
+        (set! f (substring f 1)))
+      (let ((p (build-path base-path f)))
+        (if (not (file-exists? p))
+            (on-not-exist file base-path p)
+            p)))))
+
 ;(define (webview-call-js wv js)
 ;  (let ((result (rkt_webview_call_js (wv-handle wv) js)))
 ;    result))
@@ -161,16 +174,9 @@
 ;; testing
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-(define-runtime-path example-path "example")
+(define-runtime-path example-path "../example")
 
-(define (file-getter file)
-  (displayln (format "file-getter: ~a" file))
-  (let ((f (if (string=? file "/") "index.html" file)))
-    (when (string-prefix? f "/")
-      (set! f (substring f 1)))
-    (let ((p (build-path example-path f)))
-      (displayln p)
-      p)))
+(define file-getter (webview-standard-file-getter example-path))
 
 (define (test)
   (let* ((cb (λ (handle evt)
diff --git a/private/utils.rkt b/private/utils.rkt
new file mode 100644
index 0000000..a786b97
--- /dev/null
+++ b/private/utils.rkt
@@ -0,0 +1,64 @@
+#lang racket/base
+
+
+(provide while
+       until
+       get-lib-path
+       do-for
+       )
+
+(define-syntax while
+(syntax-rules ()
+  ((_ cond body ...)
+   (letrec ((while-f (lambda (last-result)
+                       (if cond
+                           (let ((last-result (begin
+                                                body
+                                                ...)))
+                             (while-f last-result))
+                           last-result))))
+     (while-f #f))
+   )
+  ))
+
+(define-syntax until
+(syntax-rules ()
+  ((_ cond body ...)
+   (letrec ((until-f (lambda (last-result)
+                       (if cond
+                           last-result
+                           (let ((last-reult (begin
+                                               body
+                                               ...)))
+                             (until-f last-result))))))
+     (until-f #f)))))
+
+(define-syntax do-for
+(syntax-rules ()
+  ((_ (init cond next) body ...)
+   (begin
+     init
+     (letrec ((do-for-f (lamba ()
+                               (if cond
+                                   (begin
+                                     (begin
+                                       body
+                                       ...)
+                                     next
+                                     (do-for-f))))))
+       (do-for-f))))))
+
+(define (get-lib-path lib)
+(let ((platform (system-type)))
+  (cond
+    [(eq? platform 'windows) 
+     (let ((try1 (build-path (current-directory) ".." "lib" "dll" lib))
+           (try2 (build-path (current-directory) "lib" "dll" lib)))
+       (if (file-exists? try1)
+           try1
+           try2)
+       )]
+    [else
+     (error (format "Install the shared library: ~a" lib))]
+    )))
+               
diff --git a/private/web-racket.rkt b/private/web-racket.rkt
new file mode 100644
index 0000000..64484a8
--- /dev/null
+++ b/private/web-racket.rkt
@@ -0,0 +1,819 @@
+(module web-racket racket/gui
+
+  (require racket/gui
+           "racket-webview.rkt"
+           "css.rkt"
+           "menu.rkt"
+	   racket-sprintf
+           ;"webui-wire-download.rkt"
+           "utils.rkt"
+           html-printer
+           (prefix-in g: gregor)
+           (prefix-in g: gregor/time)
+           gregor-utils
+           net/sendurl
+           racket/path
+           xml
+           )
+  
+  (provide ww-element%
+
+           ww-input%
+           ww-input-email%
+           ww-input-date%
+           ww-input-time%
+           ww-input-datetime%
+           ww-input-range%
+           
+           ww-webview%
+           ww-webview-dialog%
+           ww-settings%
+           ww-webview-message%
+
+           ww-start
+           ww-stop
+           ww-set-debug
+           ww-debug
+           ww-error
+           ww-set-log-level
+           ww-log-level
+           ww-exec-js
+
+           (all-from-out "css.rkt")
+           (all-from-out "menu.rkt")
+
+           ww-set-custom-webui-wire-command!
+           ww-get-webui-wire-version
+           ww-display-log
+           ww-tail-log
+           )
+
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+  ;; Regexes
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+  (define re-resize #px"([0-9]+)\\s+([0-9]+)")
+  (define re-move re-resize)
+  (define re-file-open #px"([0-9]+)[:]([^:]+)[:](.*)")
+  (define re-choose-dir re-file-open)
+  (define re-navigate #px"(.*)[:]([^:]+)[:]([^:]+)$")
+  
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+  ;; GUI classes
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+  (define _std_x 100)
+  (define _std_y 100)
+  (define _std_w 800)
+  (define _std_h 600)
+
+  (define (next-window-init-position)
+    (set! _std_x (+ _std_x 75))
+    (set! _std_y (+ _std_y 50))
+    (call-with-values
+     get-display-size
+     (lambda (w h)
+       (when (> (+ _std_y _std_h) h)
+         (set! _std_y 50))
+       (when (> (+ _std_x _std_w) w)
+         (set! _std_x 50))
+       )))
+
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+  ;; Class representing an element in the HTML page
+  ;;   each element is identified by an id. 
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+  (define ww-element%
+    (class object%
+      (init-field [win-id #f] [id #f])
+      
+      (define/public (get-win-id)
+        win-id)
+
+      (define/public (get-id)
+        id)
+
+      (define/public (win)
+        (let ((w (hash-ref windows (ww-win-id win-id) #f)))
+          w))
+
+      (define connected-callbacks (make-hash))
+
+      (define/public (callback evt . args)
+        (ww-debug (format "WW-ELEMENT%: Callback for ~a - ~a - ~a" id evt args))
+        (let ((cb (hash-ref connected-callbacks evt #f)))
+          (unless (eq? cb #f)
+            (with-handlers ([exn:fail?
+                             (λ (e)
+                               (ww-error (format "callback for ~a: ~a" evt e)))])
+              (apply cb args)))))
+
+      (define/public (exec-js js)
+        (ww-exec-js win-id js))
+
+      (define/public (connect evt func)
+        (hash-set! connected-callbacks evt func))
+
+      (define/public (disconnect evt)
+        (hash-remove! connected-callbacks evt))
+
+      (define/public (add-style! st)
+        (ww-add-style win-id id st))
+
+      (define/public (set-style! st)
+        (ww-set-style win-id id st))
+
+      (define/public (style)
+        (ww-get-style win-id id))
+
+      (define/public (get-attr a)
+        (ww-get-attr win-id id a))
+
+      (define/public (set-attr! a val)
+        (ww-set-attr win-id id a val))
+
+      (define/public (del-attr a)
+        (ww-del-attr win-id id a))
+
+      (define/public (get-attrs)
+        (ww-get-attrs win-id id))
+
+      (define/public (add-class! cl)
+        (ww-add-class win-id id cl))
+
+      (define/public (remove-class! cl)
+        (ww-remove-class win-id id cl))
+
+      (define/public (has-class? cl)
+        (ww-has-class? win-id id cl))
+
+      (define/public (enable)
+        (send this remove-class! 'disabled))
+
+      (define/public (enabled?)
+        (not (send this disabled?)))
+
+      (define/public (disable)
+        (send this add-class! 'disabled))
+
+      (define/public (disabled?)
+        (send this has-class? 'disabled))
+
+      (define/public (display . args)
+        (let ((d (if (null? args) "block" (car args))))
+          (send this add-style! (css-style 'display d))))
+
+      (define/public (hide)
+        (send this display "none"))
+
+      (define/public (show)
+        (send this display "block"))
+
+      (define/public (show-inline)
+        (send this display "inline-block"))
+
+      (define/public (set-inner-html! html-or-sexpr)
+        (if (string? html-or-sexpr)
+            (ww-set-inner-html win-id id html-or-sexpr)
+            (set-inner-html! (xexpr->html5 html-or-sexpr))))
+
+      (super-new)
+      )
+    )
+
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+  ;; Classes representing different kinds of input/textarea elements in html
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+  (define-syntax inp-set!
+    (syntax-rules ()
+      ((_ var val)
+       (set! var val))))
+  
+
+  ;;;; Generic input
+  (define ww-input%
+    (class ww-element%
+
+      (define cb #f)
+      (define val #f)
+
+      (define/public (value-converter v)
+        v)
+
+      (define/public (get)
+        val)
+
+      (define/public (on-change! callback)
+        (inp-set! cb callback)
+        (cb val)
+        )
+
+      (define/public (set! v)
+        (inp-set! val v)
+        (ww-set-value (send this get-win-id)
+                      (send this get-id) v))
+
+      (define/override (disable)
+        (super disable)
+        (ww-set-attr (send this get-win-id)
+                     (send this get-id) 'disabled ""))
+
+      (define/override (enable)
+        (super enable)
+        (ww-del-attr (send this get-win-id)
+                     (send this get-id) 'disabled))
+          
+      (super-new)
+
+      (begin
+
+        (let ((v (ww-get-value (send this get-win-id) (send this get-id))))
+          (inp-set! val (send this value-converter v)))
+        
+        (send this connect 'input (λ (data)
+                                    (ww-debug "WW-INPUT% 'input event:" data)
+                                    (let ((js-evt (hash-ref data 'js_evt #f)))
+                                      (ww-debug "WW-INPUT% 'input event, js-evt = " js-evt)
+                                      (unless (eq? js-evt #f)
+                                        (when (hash-has-key? js-evt 'value)
+                                          (let ((v (hash-ref js-evt 'value)))
+                                            (inp-set! val v)
+                                            (unless (eq? cb #f)
+                                              (cb v))
+                                            ))))
+                                    ))
+        (send (send this win) bind 'input (format "#~a" (send this get-id)))
+        )
+      ))
+
+
+  ;;;; Email input
+  (define ww-input-email%
+    (class ww-input%
+
+      (super-new)))
+
+  ;;;; Date input
+  (define ww-input-date%
+    (class ww-input%
+
+      (define/override (get)
+        (let ((val (super get)))
+          (g:parse-date val "yyyy-MM-dd")))
+
+      (define/override (set! d)
+        (when (racket-date? d)
+          (set! (date->moment d)))
+        (unless (or (g:date? d) (g:moment? d) (g:datetime? d))
+          (error "set! - gregor date expected"))
+        (super set! (sprintf "%04d-%02d-%02d" (g:->year d) (g:->month d) (g:->day d)))
+        d)
+
+      (super-new)
+      ))
+
+  ;;;; Time input
+  (define ww-input-time%
+    (class ww-input%
+
+      (define/override (get)
+        (let ((val (super get)))
+          (with-handlers ([exn:fail?
+                           (λ (e) (g:parse-time val "HH:mm"))])
+            (g:parse-time val "HH:mm:ss"))))
+
+      (define/override (set! t)
+        (when (racket-date? t)
+          (set! (date->moment t)))
+        (unless (or (g:time? t) (g:datetime? t) (g:moment? t))
+          (error "set! - gregor time?, moment? or datetime? expected"))
+        (super set! (sprintf "%02d:%02d:%02d" (g:->hours t) (g:->minutes t) (g:->seconds t))))
+
+      (super-new)
+      ))
+
+  ;;;;; Date-time local
+  (define ww-input-datetime%
+    (class ww-input%
+
+      (define/override (get)
+        (let ((val (super get)))
+          (with-handlers ([exn:fail?
+                           (λ (e) (g:parse-moment val "yyyy-MM-dd'T'HH:mm:ss"))])
+            (g:parse-moment val "yyyy-MM-dd'T'HH:mm"))))
+
+      (define/override (set! m)
+        (when (racket-date? m)
+          (set! date->moment m))
+        (unless (or (g:datetime? m) (g:moment? m) (g:date? m) (g:time? m))
+          (error "set! - gregor time? , date?, datetime? or moment? expected"))
+        #t)
+
+      (super-new)
+      )
+    )
+
+  ;;;; Range
+  (define ww-input-range%
+    (class ww-input%
+
+      (define/override (value-converter v)
+        (string->number v))
+      
+      (super-new)
+      ))
+
+
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+  ;; Classes representing WebView Windows. 
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+  
+  (define ww-webview%
+    (class object%
+      
+      (init-field [profile 'default-profile]
+                  [settings #f]
+                  [use-browser #f]
+                  [parent-id #f]
+                  [parent #f]
+                  [title "Racket HTML Window"]
+                  [x (if (eq? settings #f) _std_x (send settings get 'window-x _std_x))]
+                  [y (if (eq? settings #f) _std_y (send settings get 'window-y _std_y))]
+                  [width (if (eq? settings #f) _std_w (send settings get 'window-width _std_w))]
+                  [height (if (eq? settings #f) _std_h (send settings get 'window-height _std_h))]
+                  [icon #f]
+                  [menu #f]
+                  [html-file #f]
+                  )
+
+      (define win-id #f)
+
+      (define menu-cbs (make-hash))
+      (define elements (make-hash))
+      (define html-handle #f)
+
+      (define/public (clone-settings section)
+        (if (eq? settings #f)
+            #f
+            (send settings clone section)))
+      
+      (define (event-handler content)
+        (let ((evt (hash-ref content 'event #f)))
+          (ww-debug (format "win-id=~a '~a ~a" win-id evt content))
+          (cond
+            ([eq? evt 'page-loaded] (let ((page-handle (hash-ref content 'page_handle 'none)))
+                                      (ww-debug (format "html-handle: ~a, page-handle: ~a, equal?: ~a"
+                                                        html-handle
+                                                        page-handle
+                                                        (equal? html-handle page-handle)))
+                                      (when (and (number? html-handle) (number? page-handle) (= html-handle page-handle))
+                                        (send this html-loaded))))
+            ([eq? evt 'click] (handle-click (string->symbol (hash-ref content 'id)) content))
+            ([eq? evt 'dblclick] (handle-dblclick (string->symbol (hash-ref content 'id)) content))
+            ([eq? evt 'contextmenu] (handle-contextmenu (string->symbol (hash-ref content 'id)) content))
+            ([eq? evt 'input] (handle-input (string->symbol (hash-ref content 'id)) content))
+            ([eq? evt 'change] (handle-change (string->symbol (hash-ref content 'id)) content))
+            ([eq? evt 'resized] (let* ((width* (hash-ref content 'width))
+                                       (height* (hash-ref content 'height))
+                                       )
+                                  (set! width width*)
+                                  (set! height height*)
+                                  (unless (eq? settings #f)
+                                    (send settings set 'window-width width)
+                                    (send settings set 'window-height height))
+                                  ))
+            ([eq? evt 'moved] (let* ((x* (hash-ref content 'x))
+                                     (y* (hash-ref content 'y))
+                                     )
+                                (set! x x*)
+                                (set! y y*)
+                                (unless (eq? settings #f)
+                                  (send settings set 'window-x x)
+                                  (send settings set 'window-y y))
+                                ))
+            ([eq? evt 'close-request] (when (send this can-close?)
+                                        (send this close)))
+            ([eq? evt 'menu-item-choosen] (let* ((menu-id (string->symbol (hash-ref content 'item)))
+                                                 (cb (hash-ref menu-cbs menu-id #f)))
+                                            (unless (eq? cb #f)
+                                              (cb))))
+            ([eq? evt 'navigate] (let* ((url (hash-ref content 'url))
+                                        (kind (string->symbol (hash-ref content
+                                                                        'navigation-kind)))
+                                        (type (string->symbol (hash-ref content
+                                                                        'navigation-type)))
+                                        )
+                                   (send this handle-navigate url type kind)))
+            ([eq? evt 'choose-dir] (let* ((handle (hash-ref content 'handle))
+                                          (choosen (hash-ref content 'choosen))
+                                          (dir (hash-ref content 'dir))
+                                          )
+                                     (send this dir-choosen handle choosen dir)))
+            ([eq? evt 'inner-html-set] (let* ((handle (hash-ref content 'handle))
+                                              (has-been-set (hash-ref content 'oke)))
+                                         (send this inner-html-set handle has-been-set)))
+            )
+          )
+        )
+
+      (define/public (handle-click element-id data)
+        (let ((el (hash-ref elements element-id #f)))
+          (unless (eq? el #f)
+            (send el callback 'click data))))
+
+      (define/public (handle-dblclick element-id data)
+        (let ((el (hash-ref elements element-id #f)))
+          (unless (eq? el #f)
+            (send el callback 'dblclick data))))
+
+      (define/public (handle-contextmenu element-id data)
+        (let ((el (hash-ref elements element-id #f)))
+          (unless (eq? el #f)
+            (send el callback 'contextmenu data))))
+
+      (define/public (handle-change element-id data)
+        (let ((el (hash-ref elements element-id #f)))
+          (unless (eq? el #f)
+            (send el callback 'change data 'value))))
+
+      (define/public (handle-input element-id data)
+        (let ((el (hash-ref elements element-id #f)))
+          (unless (eq? el #f)
+            (send el callback 'input data))))
+
+      (define/public (handle-navigate url type kind)
+        (let ((method (if (eq? kind 'set-html) 'set-html-file! 'set-url)))
+          (cond
+            ([eq? type 'standard]
+             (dynamic-send this method url))
+            (else (ww-error (format "Don't know what to do for ~a - ~a" type url)))
+            )
+          )
+        )
+
+      (define/public (get-win-id) win-id)
+
+      (define/public (exec-js js)
+        (ww-exec-js win-id js))
+
+      (define (cl-selector tag type)
+        (cond
+          ([eq? tag 'INPUT]
+           (cond
+             ([eq? type 'text] ww-input%)
+             ([eq? type 'date] ww-input-date%)
+             ([eq? type 'datetime-local] ww-input-datetime%)
+             ([eq? type 'range] ww-input-range%)
+             (else ww-input%)))
+          (else ww-element%)))
+
+      (define/public (bind event selector . forced-cl)
+        (ww-debug (format "call to bind ~a ~a ~a" event selector forced-cl))
+        (let ((infos (ww-bind win-id event selector)))
+          (for-each (λ (info)
+                      (let* ((id (car info))
+                             (tag (cadr info))
+                             (type (caddr info)))
+                        (ww-debug (format "bind: ~a ~a ~a" id tag type))
+                        (let ((cl (if (null? forced-cl)
+                                      (cl-selector tag type)
+                                      (car forced-cl))))
+                          (unless (hash-has-key? elements id)
+                            (hash-set! elements id 'in-the-making)
+                            (hash-set! elements id
+                                       (new cl [win-id win-id] [id id]))))))
+                    infos)))
+
+      (define/public (bind-inputs)
+        (bind 'change 'input )
+        (bind 'change 'textarea)
+        #t
+        )
+
+      (define/public (bind-buttons)
+        (bind 'click 'button)
+        )
+
+      (define/public (element id)
+        (unless (hash-has-key? elements id)
+          (let ((info (ww-element-info win-id id)))
+            (let* ((el-id (car info))
+                   (tag (cadr info))
+                   (type (caddr info))
+                   (exist (cadddr info))
+                   )
+              (unless exist
+                (ww-debug (format "Element ~a does not exist!" id)))
+              (let* ((cl (cl-selector tag type))
+                     (obj (new cl [win-id win-id] [id id])))
+                (hash-set! elements el-id obj)
+                ))
+            (element id))
+          )
+        (hash-ref elements id))
+
+      (define/public (new-element id . cl-selector)
+        (unless (hash-has-key? elements id)
+          (let ((cl (if (null? cl-selector) ww-element% (car cl-selector))))
+            (let ((obj (new cl [win-id win-id] [id id])))
+              (hash-set! elements id obj))))
+        (hash-ref elements id))
+
+      (define/public (get-elements selector)
+        (ww-get-elements win-id selector))
+
+      (define/public (move x y)
+        (ww-move win-id x y))
+
+      (define/public (resize x y)
+        (ww-resize win-id x y))
+
+      (define/public (get-x) x)
+      (define/public (get-y) y)
+      (define/public (get-width) width)
+      (define/public (get-height) height)
+      (define/public (geom) (list x y width height))
+
+      (define/public (set-title! t)
+        (set! title t)
+        (ww-set-title win-id t))
+
+      (define/public (get-title)
+        title)
+
+      (define/public (set-icon! icn)
+        (ww-set-icon win-id icn))
+
+      (define/public (set-html-file! file)
+        (let* ((full-path (if (string? file)
+                              (string->path file)
+                              file))
+               (folder (path-only full-path))
+               (the-file (file-name-from-path full-path))
+               )
+          (ww-debug (format "set-html-file! ~a, ~a" folder the-file))
+          (set! html-file file)
+          (when folder 
+            (ww-cwd folder))
+          (set! html-handle (ww-set-html-file win-id the-file))
+          (ww-debug (format "html file set to ~a" the-file))
+          ))
+
+      (define/public (set-html html)
+        (let* ((tmpfile "/tmp/test.html")
+               (fh (open-output-file tmpfile #:exists 'replace)))
+          ;(displayln tmpfile)
+          (display html fh)
+          (close-output-port fh)
+          (send this set-html-file! tmpfile)
+          )
+        )
+
+      (define/public (set-url url)
+        (send-url url))
+
+      (define/public (html-loaded)
+        (send this bind-buttons)
+        (send this bind-inputs))
+
+      (define/public (get-html-file)
+        html-file)
+
+      (define/public (show)
+        (ww-set-show-state win-id 'show))
+
+      (define/public (hide)
+        (ww-set-show-state win-id 'hide))
+
+      (define/public (maximize)
+        (ww-set-show-state win-id 'maximize))
+
+      (define/public (normalize)
+        (ww-set-show-state win-id 'normalize))
+
+      (define/public (minimize)
+        (ww-set-show-state win-id 'minimize))
+
+      (define/public (fullscreen)
+        (ww-set-show-state win-id 'fullscreen))
+
+      (define/public (show-state)
+        (ww-get-show-state win-id))
+
+      (define/public (can-close?)
+        #t)
+      
+      (define/public (close)
+        (ww-close win-id)
+        (hash-remove! windows (ww-win-id win-id))
+        (hash-remove! windows-evt-handlers (ww-win-id win-id))
+        (when (= (hash-count windows) 0)
+          (ww-stop))
+        )
+
+      (define/public (set-menu! menu-def)
+        (ww-set-menu win-id menu-def))
+
+      (define/public (connect-menu! id cb)
+        (hash-set! menu-cbs id cb))
+
+      (define/public (disconnect-menu! id)
+        (hash-remove! menu-cbs id)
+        )
+
+      (define/public (popup-menu menu-def x y)
+        (ww-popup-menu win-id menu-def x y)
+        (let* ((ids (list))
+               (clear-connections (λ ()
+                                   (for-each (λ (id)
+                                               (send this disconnect-menu! id))
+                                             ids))))
+          (menu-for-each menu-def
+                         (λ (item)
+                           (let ((cb (ww-menu-item-callback item))
+                                 (id (ww-menu-item-id item)))
+                             (set! ids (cons id ids))
+                             (send this connect-menu! id (λ ()
+                                                           (clear-connections)
+                                                           (cb))))))
+          (connect-menu! (ww-menu-id menu-def) (λ () (clear-connections)))
+          (set! ids (cons (ww-menu-id menu-def) ids))
+          )
+        )
+
+      ; files and directories
+      (define/public (file-open caption base-dir filters)
+        (let ((r (ww-file-open win-id caption base-dir filters)))
+          (if (eq? (car r) #f)
+              #f
+              (let ((m (regexp-match re-file-open (cdr r))))
+                (if (eq? m #f)
+                    #f
+                    (let ((file (cadddr m)))
+                      (ww-from-string file))
+                    )
+                )
+              )
+          )
+        )
+
+      (define/public (file-save caption base-dir filters . overwrite)
+        (let ((o (if (null? overwrite) #f (car overwrite))))
+          (let ((r (ww-file-save win-id caption base-dir filters o)))
+            (if (eq? (car r) #f)
+                #f
+                (let ((m (regexp-match re-file-open (cdr r))))
+                  (if (eq? m #f)
+                      #f
+                      (let ((file (cadddr m)))
+                        (ww-from-string file))
+                      )
+                  )
+                )
+            )
+          )
+        )
+
+      (define/public (choose-dir caption base-dir)
+        (let ((bdir (string-trim base-dir)))
+          (when (or (string=? bdir "") (string=? bdir ".") (string=? bdir ".."))
+            (set! bdir (path->string (find-system-path 'home-dir))))
+          (while (and (> (string-length bdir) 0)
+                      (or (string-suffix? bdir "\\") (string-suffix? bdir "/")))
+                 (set! bdir (substring bdir 0 (- (string-length bdir) 1)))
+                 )
+          (when (string=? bdir "")
+            (set! bdir (path->string (find-system-path 'home-dir))))
+          (when (or (string-suffix? bdir "\\") (string-suffix? bdir "/"))
+            (set! bdir (substring bdir 0 (- (string-length bdir) 1))))
+          (ww-debug (format "ww-choose-dir ~a ~a ~a" win-id caption bdir))
+          (let ((r (ww-choose-dir win-id caption bdir)))
+            (ww-debug (format "choose-dir: ~a" r))
+            (if (eq? r 'cmd-nok)
+                #f
+                r))))
+
+      (define/public (dir-choosen handle choosen dir)
+        (ww-debug (format "dir-choosen: handle=~a, choosen=~a, dir=~a" handle choosen dir))
+        )
+
+      (define/public (inner-html-set handle oke)
+        (ww-debug (format "inner-html-set ~a: ~a" handle oke))
+        )
+
+      (define/public (inherit-checks)
+        #t)
+
+      ; Supers first
+      (super-new)
+
+      ; construct
+      (begin
+        (send this inherit-checks)
+        
+        ;(when (= (hash-count windows) 0)
+        ;  (ww-start))
+
+        ;(when (eq? parent-id #f)
+        ;  (unless (eq? parent #f)
+        ;    (set! parent-id (send parent get-win-id))))
+
+        ;(when (eq? parent #f)
+        ;  (unless (eq? parent-id #f)
+        ;    (set! parent (ww-get-window-for-id parent-id))))
+        
+        (next-window-init-position)
+        
+        ;(set! win-id
+        ;      (if (eq? parent-id #f)
+        ;          (ww-new profile use-browser)
+        ;          (ww-new profile use-browser parent-id)))
+        (set! win-id (webview-create
+                      (λ (file) file)
+        (when (eq? win-id #f)
+          (error "Window could not be constructed"))
+
+        (hash-set! windows-evt-handlers (ww-win-id win-id) event-handler)
+        (hash-set! windows (ww-win-id win-id) this)
+
+        (ww-resize win-id width height)
+
+        (when parent
+            (let* ((parent-width (send parent get-width))
+                   (parent-height (send parent get-height))
+                   (parent-x (send parent get-x))
+                   (parent-y (send parent get-y))
+                   )
+              (set! x (+ parent-x (/ (- parent-width width) 2)))
+              (set! y (+ parent-y (/ (- parent-height height) 2)))
+              )
+          )
+        (ww-move win-id x y)
+        
+        (send this set-title! title)
+        
+        (unless (eq? icon #f)
+          (send this set-icon! icon))
+        
+        (unless (eq? menu #f)
+          (send this set-menu! menu))
+        
+        (unless (eq? html-file #f)
+          (send this set-html-file! html-file))
+        )
+
+    ))
+
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+  ;; Classes representing WebView Dialogs
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+  (define ww-webview-dialog%
+    (class ww-webview%
+      (super-new)
+
+      (inherit-field parent)
+
+      (define/override (inherit-checks)
+        (when (eq? parent #f)
+          (error "A parent must be given")))
+      ))
+
+
+  (define ww-webview-message%
+    (class ww-webview-dialog%
+      (super-new)
+
+      (send this set-html
+            "<html><head><title>Message</title></head><body><h3 id=\"msg\">[msg]</h3><p id=\"submsg\">[submsg]</p></body></html>"
+            )
+      )
+    )
+
+  (define (set-global-stylesheet st)
+    (ww-set-stylesheet st))
+
+  (define (get-global-stylesheet)
+    (ww-get-stylesheet))
+
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+  ;; Classes for settings
+  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+  (define ww-settings%
+    (class object%
+      (super-new)
+      (define/public (set key value)
+        (error "ww-settings%: set not implemented, override in your specific subclass"))
+      (define/public (get key . default)
+        (error "ww-settings%: get not implemented, override in your specific subclass"))
+      (define/public (clone new-section)
+        (error "ww-settings%: clone not implemented, override in your specific subclass"))
+      (define/public (set! key value)
+        (send this set key value))
+      )
+    )
+ 
+  ); end of module
diff --git a/utils.rkt b/utils.rkt
deleted file mode 100644
index 00679f5..0000000
--- a/utils.rkt
+++ /dev/null
@@ -1,22 +0,0 @@
-#lang racket/base
-
-(provide while)
-
-(define-syntax while
-  (syntax-rules ()
-    ((_ cond
-        body ...)
-     (letrec ((while (λ ()
-                       (if cond
-                           (begin
-                             (displayln "cond = true")
-                             (begin body ...)
-                             (while))
-                           (begin
-                             (displayln "cond = false")
-                             'done)))
-                     ))
-       (while)))
-    )
-  )
-                             
\ No newline at end of file