Files
rktplayer/gui.rkt
2026-02-24 23:28:18 +01:00

303 lines
10 KiB
Racket

#lang racket
(require web-racket
racket/runtime-path
racket/gui
racket-sprintf
"utils.rkt"
"music-library.rkt"
"translate.rkt"
"playlist.rkt"
"player.rkt"
)
(provide
(all-from-out web-racket)
rktplayer%
)
(define-runtime-path rktplayer-start "gui/rktplayer.html")
(define player-menu
(λ ()
(menu 'main-menu
(menu-item 'm-file (tr "File")
#:submenu
(menu (menu-item 'm-select-library-dir (tr "Select Music Library Folder"))
(menu-item 'm-set-lang (tr "Set language"))
(menu-item 'm-quit (tr "Quit") #:separator #t)))
)
))
(define rktplayer%
(class ww-webview%
(inherit-field settings)
(super-new
[html-file rktplayer-start]
)
(define closed #f)
(define el-seeker #f)
(define el-library #f)
(define el-playlist #f)
(define el-at #f)
(define el-length #f)
(define music-library (send settings get 'music-library (find-system-path 'home-dir)))
(define current-music-path #f)
(define playlist #f)
(define current-at-seconds 0)
(define current-length-seconds 0)
(define (update-time at-seconds length-seconds)
(let ((as (inexact->exact (round at-seconds)))
(ls (inexact->exact (round length-seconds))))
(when (or (not (= current-at-seconds as))
(not (= current-length-seconds ls)))
(set! current-at-seconds as)
(set! current-length-seconds ls)
(let ((as-str (sprintf "%02d:%02d:%02d"
(quotient as 3600)
(quotient (remainder as 3600) 60)
(remainder (remainder as 3600) 60)))
(ls-str (sprintf "%02d:%02d:%02d"
(quotient ls 3600)
(quotient (remainder ls 3600) 60)
(remainder (remainder ls 3600) 60)))
)
(unless closed
(send el-at set-inner-html! as-str)
(send el-length set-inner-html! ls-str)
(let ((seeker (exact->inexact (/ (* 100 as) ls))))
(displayln (format "seeker = ~a" seeker))
(send el-seeker set! (format "~a" seeker)))
)
)
)
)
)
(define current-track-nr #f)
(define (update-track-nr nr)
(let ((id (λ () (string->symbol (format "track-~a" (+ current-track-nr 1))))))
(unless (eq? current-track-nr #f)
(displayln (format "current track: ~a" (id)))
(let ((el (send this element (id))))
(send el remove-class! "current")))
(set! current-track-nr nr)
(unless (eq? current-track-nr #f)
(displayln (format "current track: ~a" (id)))
(let ((el (send this element (id))))
(send el add-class! "current")))
)
)
(define player (new player%
[time-updater update-time]
[track-nr-updater update-track-nr]
[settings settings]
))
(define inner-html-handlers (make-hash))
(define/override (html-loaded)
(super html-loaded)
(ww-connect 'play play)
(ww-connect 'prev previous-track)
(ww-connect 'next next-track)
(ww-connect 'repeat repeat)
(ww-connect 'volume volume)
(set! el-seeker (send this element 'seek))
(displayln (format "el-seeker: ~a" (send el-seeker get)))
(let ((seek-reactor (make-delayed-reactor 0.3 (λ (percentage) (send this seek-to percentage)))))
(send el-seeker on-change! seek-reactor))
(set! el-library (send this element 'library))
(set! el-playlist (send this element 'tracks))
(set! el-at (send this element 'time))
(set! el-length (send this element 'totaltime))
(send this set-menu! (player-menu))
(send this connect-menu! 'm-quit (λ () (send this quit)))
(send this connect-menu! 'm-select-library-dir (λ () (send this select-library)))
(send this update-library)
)
(define/public (update-playlist)
(let ((html (send playlist to-html)))
(send el-playlist set-inner-html! html)
(update-track-nr current-track-nr)
)
)
(define/public (update-library)
(when (eq? current-music-path #f)
(set! current-music-path music-library))
(let* ((nr 0)
(l (filter (λ (r) (music-lib-relevant? (cadr r)))
(map (λ (e)
(set! nr (+ nr 1))
(list (format "row-~a" nr) (build-path current-music-path e) (format "path-~a" nr)))
(directory-list current-music-path)))))
(displayln current-music-path)
(displayln music-library)
(unless (equal? (format "~a" current-music-path) (format "~a" music-library))
(set! l (cons (list "lib-up" "" "lib-up") l))
)
(let ((html (mktable l 'music-library library-formatter)))
(let ((handle (send el-library set-inner-html! html)))
(hash-set! inner-html-handlers handle
(λ (oke)
(when oke
(send this bind 'dblclick "td.library-entry")
(send this bind 'click "td.library-entry")
(send this bind 'contextmenu "td.library-entry")
(for-each (λ (row)
(let ((path-id (string->symbol (caddr row))))
(let ((el (send this new-element path-id)))
(send el connect 'dblclick
(λ (args)
(send this path-choosen (cadr row))))
(send el connect 'click
(λ (args) #t))
(send el connect 'contextmenu
(λ (evt)
(send this context-for-path evt (cadr row))))
)))
l)
))))
))
)
(define/override (inner-html-set handle oke)
(ww-debug "inner-html-set called")
(let ((cb (hash-ref inner-html-handlers handle #f)))
(ww-debug (format "got cb = ~a for handle ~a" cb handle))
(when cb
(hash-remove! inner-html-handlers handle)
(cb oke)))
)
(define/public (path-choosen path)
(let ((path-part (if (equal? path "") ".." (format "~a" path))))
(let ((npath (if (string=? path-part "..")
(build-path current-music-path path-part)
path)))
(when (directory-exists? npath)
(set! current-music-path (normalize-path npath))
(send this update-library)
)
)
)
)
(define/public (context-for-path evt path)
(let ((items (list
(menu-item 'm-play-this (tr "Play this") #:callback (λ () (send this play-path path))))))
(when (file-exists? path)
(set! items (append items
(list
(menu-item 'm-add-this (tr "Add this") #:callback (λ () (send this add-path path)))))))
(set! items (append items
(list
(menu-item 'm-booklet (tr "Open booklet") #:callback (λ () (send this open-booklet path))) ;; todo check if pdf file exists
(menu-item 'm-folder (tr "Open containing folder") #:callback (λ () (send this open-folder path)))
)))
(let* ((mnu (menu 'library-popup items))
(js-evt (hash-ref evt 'js_evt (make-hash)))
(clientX (hash-ref js-evt 'clientX 60))
(clientY (hash-ref js-evt 'clientY 60))
)
(send this popup-menu mnu clientX clientY)
)
)
)
(define/public (play-path path)
(displayln (format "Playing ~a" path))
(set! playlist (new playlist% [start-map path]))
(send playlist read-tracks)
(displayln (format "number of tracks: ~a" (send playlist length)))
(send this update-playlist)
(send player play playlist)
)
(define/public (add-path path)
(send playlist add-track path)
(send this update-playlist)
)
(define/public (open-booklet path)
(displayln (format "Open booklet ~a" path)))
(define/public (open-folder path)
(displayln path)
(let ((folder (if (file-exists? path) (path-only path) path)))
(open-file-manager folder)))
;(shell-execute #f folder #f #f 'sw_show)))
(define/public (play)
(displayln "Play button clicked")
)
(define/public (next-track)
(send player next)
)
(define/public (previous-track)
(send player previous)
)
(define/public (repeat)
(displayln "Repeat")
)
(define/public (volume)
(displayln "Volume")
)
(define/public (seek-to percentage)
(displayln (format "Seeking to percentage: ~a" percentage))
)
(define/public (quit)
(displayln (format "Quitting"))
(send player quit)
(set! closed #t)
(send this close))
(define/public (select-library)
;(set! music-library "c:\\Users\\Hans")
(let ((handle (send this choose-dir
(tr "Choose the folder containing your music library")
(if (string? music-library) music-library (path->string music-library))
)))
(displayln (format "Selecting Music Library with handle: ~a" handle))
)
)
(define/override (dir-choosen handle choosen dir)
(when choosen
(set! music-library dir)
(send settings set! 'music-library dir)
(set! current-music-path #f)
(send this update-library)))
(begin
(let ((lang (send settings get 'lang 'en)))
(displayln (format "RktPlayer started, current language: ~a" lang)))
)
)
)