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03-demo.lisp
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03-demo.lisp
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;;; As this demo uses eval do not run over the internet.
;;; This app gives access to its users your local files.
(defpackage #:clog-demo-3
(:use #:cl #:clog #:clog-gui)
(:export start-demo))
(in-package :clog-demo-3)
(defclass app-data ()
((copy-buf
:accessor copy-buf
:initform ""
:documentation "Copy buffer")))
(defun read-file (infile)
(with-open-file (instream infile :direction :input :if-does-not-exist nil)
(when instream
(let ((string (make-string (file-length instream))))
(read-sequence string instream)
string))))
(defun write-file (string outfile &key (action-if-exists :rename))
(check-type action-if-exists (member nil :error :new-version :rename :rename-and-delete
:overwrite :append :supersede))
(with-open-file (outstream outfile :direction :output :if-exists action-if-exists)
(write-sequence string outstream)))
(defun capture-eval (form)
(let ((result (make-array '(0) :element-type 'base-char
:fill-pointer 0 :adjustable t))
(eval-result))
(with-output-to-string (stream result)
(let ((*standard-output* stream)
(*error-output* stream))
(setf eval-result (eval (read-from-string (format nil "(progn ~A)" form))))))
(format nil "~A~%=>~A~%" result eval-result)))
(defun do-ide-file-new (obj)
(let ((win (create-gui-window obj :title "New window"
:height 400
:width 650)))
(set-on-window-size win (lambda (obj)
(js-execute obj
(format nil "editor_~A.resize()" (html-id win)))))
(set-on-window-size-done win (lambda (obj)
(js-execute obj
(format nil "editor_~A.resize()" (html-id win)))))
(create-child win
(format nil
"<script>
var editor_~A = ace.edit('~A-body');
editor_~A.setTheme('ace/theme/xcode');
editor_~A.session.setMode('ace/mode/lisp');
editor_~A.session.setTabSize(3);
editor_~A.focus();
</script>"
(html-id win) (html-id win)
(html-id win)
(html-id win)
(html-id win)
(html-id win)))))
(defun do-ide-file-open (obj)
(server-file-dialog obj "Open..." "./"
(lambda (fname)
(when fname
(do-ide-file-new obj)
(setf (window-title (current-window obj)) fname)
(js-execute obj
(format nil
"editor_~A.setValue('~A');editor_~A.moveCursorTo(0,0);"
(html-id (current-window obj))
(escape-string (read-file fname))
(html-id (current-window obj))))))))
(defun do-ide-file-save-as (obj)
(let* ((cw (current-window obj))
(dir (directory-namestring (window-title cw))))
(when cw
(server-file-dialog obj "Save As.." dir
(lambda (fname)
(window-focus cw)
(when fname
(setf (window-title cw) fname)
(write-file (js-query obj (format nil "editor_~A.getValue()"
(html-id cw)))
fname)))
:initial-filename (when (equal (window-title cw) "New Window")
(window-title cw))))))
(defun do-ide-file-save (obj)
(if (equalp (window-title (current-window obj)) "New Window")
(do-ide-file-save-as obj)
(let* ((cw (current-window obj))
(fname (window-title cw)))
(write-file (js-query obj (format nil "editor_~A.getValue()"
(html-id cw)))
fname)
(setf (window-title cw) "SAVED")
(sleep 2)
(setf (window-title cw) fname))))
(defun do-ide-edit-copy (obj)
(let ((cw (current-window obj)))
(when cw
(let ((app (connection-data-item obj "app-data")))
(setf (copy-buf app) (js-query obj
(format nil "editor_~A.execCommand('copy');~
navigator.clipboard.writeText(editor_~A.getCopyText());~
editor_~A.getCopyText();"
(html-id cw) (html-id cw) (html-id cw))))))))
(defun do-ide-edit-undo (obj)
(let ((cw (current-window obj)))
(when cw
(do-ide-edit-copy obj)
(js-execute obj (format nil "editor_~A.execCommand('undo')"
(html-id cw))))))
(defun do-ide-edit-redo (obj)
(let ((cw (current-window obj)))
(when cw
(js-execute obj (format nil "editor_~A.execCommand('redo')"
(html-id cw))))))
(defun do-ide-edit-cut (obj)
(let ((cw (current-window obj)))
(when cw
(do-ide-edit-copy obj)
(js-execute obj (format nil "editor_~A.execCommand('cut')"
(html-id cw))))))
(defun do-ide-edit-paste (obj)
(let ((cw (current-window obj)))
(when cw
;; Note this methods uses the global clip buffer and not (copy-buf app)
;; on copy and paste we set both the global and local buffer.
(js-execute obj (format nil "navigator.clipboard.readText().then(function(text) {~
editor_~A.execCommand('paste', text)~
})"
(html-id cw))))))
(defun do-ide-lisp-eval-file (obj)
(let ((cw (current-window obj)))
(when cw
(let* ((form-string (js-query obj (format nil "editor_~A.getValue()"
(html-id (current-window obj)))))
(result (capture-eval form-string)))
(do-ide-file-new obj)
(setf cw (current-window obj))
(js-execute obj (format nil "editor_~A.setValue('~A');editor_~A.moveCursorTo(0,0);"
(html-id cw)
(escape-string result)
(html-id cw)))))))
(defun do-ide-help-about (obj)
(let ((about (create-gui-window obj
:title "About"
:content "<div class='w3-black'>
<center><img src='/img/clogwicon.png'></center>
<center>CLOG</center>
<center>The Common Lisp Omnificent GUI</center></div>
<div><p><center>Demo 3</center>
<center>(c) 2021 - David Botton</center></p></div>"
:hidden t
:width 200
:height 215)))
(window-center about)
(setf (visiblep about) t)
(set-on-window-can-size about (lambda (obj)
(declare (ignore obj))()))))
(defun on-new-window (body)
(set-html-on-close body "Connection Lost")
(let ((app (make-instance 'app-data)))
(setf (connection-data-item body "app-data") app))
(clog-gui-initialize body)
;; This is the Ace js code editor. This cdn works for most, if fails (getting
;; New as a blank window,etc) you can cd clog/static-files/ and run
;; git clone https://github.com/ajaxorg/ace-builds/
;; and uncomment this line and comment out the next:
;; (load-script (html-document body) "/ace-builds/src-noconflict/ace.js")
(load-script (html-document body) "https://pagecdn.io/lib/ace/1.4.12/ace.js")
(add-class body "w3-teal")
(let* ((menu (create-gui-menu-bar body))
(icon (create-gui-menu-icon menu :on-click #'do-ide-help-about))
(file (create-gui-menu-drop-down menu :content "File"))
(edit (create-gui-menu-drop-down menu :content "Edit"))
(lisp (create-gui-menu-drop-down menu :content "Lisp"))
(wind (create-gui-menu-drop-down menu :content "Window"))
(help (create-gui-menu-drop-down menu :content "Help")))
(declare (ignore icon))
(create-gui-menu-item file :content "New" :on-click #'do-ide-file-new)
(create-gui-menu-item file :content "Open" :on-click #'do-ide-file-open)
(create-gui-menu-item file :content "Save" :on-click #'do-ide-file-save)
(create-gui-menu-item file :content "Save As" :on-click #'do-ide-file-save-as)
(create-gui-menu-item edit :content "Undo" :on-click #'do-ide-edit-undo)
(create-gui-menu-item edit :content "Redo" :on-click #'do-ide-edit-redo)
(create-gui-menu-item edit :content "Copy" :on-click #'do-ide-edit-copy)
(create-gui-menu-item edit :content "Cut" :on-click #'do-ide-edit-cut)
(create-gui-menu-item edit :content "Paste" :on-click #'do-ide-edit-paste)
(create-gui-menu-item lisp :content "Eval File" :on-click #'do-ide-lisp-eval-file)
(create-gui-menu-item wind :content "Maximize All" :on-click #'maximize-all-windows)
(create-gui-menu-item wind :content "Normalize All" :on-click #'normalize-all-windows)
(create-gui-menu-window-select wind)
(create-gui-menu-item help :content "About" :on-click #'do-ide-help-about)
(create-gui-menu-full-screen menu))
(set-on-before-unload (window body) (lambda(obj)
(declare (ignore obj))
;; return empty string to prevent nav off page
"")))
(defun start-demo ()
"Start demo."
(initialize #'on-new-window)
(open-browser))