autumn-lisp-game-jam-2024/modules/dom/element.scm

85 lines
2.5 KiB
Scheme

;;; Copyright (C) 2024 David Thompson <dave@spritely.institute>
;;;
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;; http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.
;;; Commentary:
;;;
;;; Element bindings.
;;;
;;; Code:
(define-module (dom element)
#:use-module (hoot ffi)
#:export (element-value
set-element-value!
element-width set-element-width!
element-height set-element-height!
append-child!
remove!
replace-with!
set-attribute!
remove-attribute!
clone-element
element-checked?
set-element-checked!))
(define-foreign element-value
"element" "value"
(ref extern) -> (ref string))
(define-foreign set-element-value!
"element" "setValue"
(ref extern) (ref string) -> none)
(define-foreign element-width
"element" "width"
(ref extern) -> i32)
(define-foreign element-height
"element" "height"
(ref extern) -> i32)
(define-foreign set-element-width!
"element" "setWidth"
(ref extern) i32 -> none)
(define-foreign set-element-height!
"element" "setHeight"
(ref extern) i32 -> none)
(define-foreign append-child!
"element" "appendChild"
(ref extern) (ref extern) -> (ref extern))
(define-foreign remove!
"element" "remove"
(ref extern) -> none)
(define-foreign replace-with!
"element" "replaceWith"
(ref extern) (ref extern) -> none)
(define-foreign %set-attribute!
"element" "setAttribute"
(ref extern) (ref string) (ref string) -> none)
(define-foreign remove-attribute!
"element" "removeAttribute"
(ref extern) (ref string) -> none)
(define-foreign clone-element
"element" "clone"
(ref extern) -> (ref extern))
(define-foreign %element-checked?
"element" "checked"
(ref null extern) -> i32)
(define (element-checked? elem)
(= (%element-checked? elem) 1))
(define-foreign set-element-checked!
"element" "setChecked"
(ref null extern) i32 -> none)
(define (set-attribute! elem name val)
(if (string=? name "checked")
(set-element-checked! elem (if val 1 0))
(%set-attribute! elem name val)))