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telega-sticker.el
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;;; telega-sticker.el --- Stickers for the telega -*- lexical-binding:t -*-
;; Copyright (C) 2019 by Zajcev Evgeny.
;; Author: Zajcev Evgeny <[email protected]>
;; Created: Fri Feb 8 21:08:24 2019
;; Keywords:
;; telega is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; telega is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with telega. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;;; Code:
(require 'seq) ;seq-doseq
(require 'telega-core)
(require 'telega-tdlib)
(require 'telega-util)
(require 'telega-media)
;; shutup compiler
(defvar ido-matches)
(defvar ivy--index)
(defvar ivy--old-cands)
(declare-function telega-chatbuf-sticker-insert "telega-chat" (sticker))
(declare-function telega-chatbuf-animation-insert "telega-chat" (animation))
(defvar telega-help-win--emoji nil
"Emoji for which help window is displayed.")
(make-variable-buffer-local 'telega-help-win--emoji)
(defvar telega-help-win--stickerset nil
"Stickerset for which help window is displayed.")
(make-variable-buffer-local 'telega-help-win--stickerset)
(defvar telega-sticker--use-thumbnail nil
"Bind this variable to non-nil to use thumbnail instead of image.
Thumbnail is a smaller (and faster) version of sticker image.")
(defvar telega-sticker-button-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map button-map)
(define-key map (kbd "f") 'telega-sticker-toggle-favorite)
(define-key map (kbd "*") 'telega-sticker-toggle-favorite)
(define-key map (kbd "i") 'telega-sticker-help)
(define-key map (kbd "h") 'telega-sticker-help)
map))
(define-button-type 'telega-sticker
:supertype 'telega
:inserter 'telega-ins--sticker-image
; 'read-only t
'keymap telega-sticker-button-map)
(defun telega-sticker-at (&optional pos)
"Retur sticker at POS."
(let ((button (button-at (or pos (point)))))
(when (and button (eq (button-type button) 'telega-sticker))
(button-get button :value))))
(defun telega-sticker-static-p (sticker)
"Return non-nil if sticker is a static sticker."
(eq 'stickerTypeStatic (telega--tl-type (plist-get sticker :type))))
(defsubst telega-sticker--file (sticker)
"Return STICKER's file."
(telega-file--renew sticker :sticker))
(defsubst telega-sticker--thumb-file (sticker)
"Return STICKER's thumbnail file."
;; NOTE: return only for non-animated thumbnails, otherwise
;; minithumbnail will be used
(when-let ((thumb (plist-get sticker :thumbnail)))
(when (memq (telega--tl-type (plist-get thumb :format))
'(thumbnailFormatJpeg thumbnailFormatPng thumbnailFormatWebp))
(telega-file--renew thumb :file))))
(defsubst telega-sticker-favorite-p (sticker)
"Return non-nil if STICKER is in favorite list."
(memq (telega--tl-get sticker :sticker :id) telega--stickers-favorite))
(defun telega-sticker--download (sticker)
"Ensure STICKER data is downloaded.
Download only if `telega-use-images' is non-nil."
(let ((sticker-file (telega-sticker--file sticker))
(thumb-file (telega-sticker--thumb-file sticker)))
(when telega-use-images
(when (telega-file--need-download-p thumb-file)
(telega-file--download thumb-file 6))
(unless telega-sticker--use-thumbnail
(when (telega-file--need-download-p sticker-file)
(telega-file--download sticker-file 2))))
))
(defsubst telega-sticker-emoji (sticker &optional no-properties)
"Return STICKER's emoji or empty string."
(or (telega-tl-str sticker :emoji no-properties) ""))
(defun telega-stickerset--download (sset)
"Ensure sticker set SSET data is downloaded."
(seq-doseq (sticker (plist-get sset :stickers))
(telega-sticker--download sticker)))
(defun telega-stickerset--ensure (sset)
"Ensure sticker set SSET is put into `telega--stickersets'."
(setf (alist-get (plist-get sset :id) telega--stickersets nil nil 'equal)
sset)
(when telega-sticker-set-download
(telega-stickerset--download sset))
sset)
(defun telega-stickerset-get (set-id &optional locally-p callback)
"Get stickerset by SET-ID.
If LOCALLY-P is non-nil, then do not perform request to telega-server.
If CALLBACK is specified and stickerset is not yet fetched, then
fetch stickerset asynchronously and call the CALLBACK function
with one argument - stickerset."
(declare (indent 2))
(let ((sset (cdr (assoc set-id telega--stickersets))))
(if (or locally-p sset)
sset
(telega--getStickerSet set-id callback))))
(defun telega-stickerset-installed-p (sset)
"Return non-nil if sticker set SSET is installed."
(member (plist-get sset :id) telega--stickersets-installed-ids))
(defun telega-sticker--dice-get (dice-value &optional locally-p callback)
"Return sticker for the DICE-VALUE.
Return nil, if sticker is not found.
CALLBACK is called without arguments"
(declare (indent 2))
(when-let ((dice-sset-name
(plist-get telega--options :animated_dice_sticker_set_name)))
(let ((sset (cl-find dice-sset-name
telega--stickersets-system
:key (telega--tl-prop :name)
:test #'equal)))
(if (or locally-p sset)
(cl-find (format "%d\uFE0F⃣" dice-value)
(plist-get sset :stickers)
:key #'telega-sticker-emoji
:test #'equal)
(telega--searchStickerSet dice-sset-name
(lambda (dice-sset)
(cl-assert (equal (plist-get dice-sset :name) dice-sset-name))
(setq telega--stickersets-system
(push dice-sset telega--stickersets-system))
(when callback
(funcall callback))))
))))
(defun telega-sticker--emoji-get (emoji)
"Get Animated Sticker for emoji."
;; NOTE: EMOJI itself or sticker's emoji could be a fe0f emoji
(when (telega-emoji-fe0f-p emoji)
(setq emoji (substring emoji 0 1)))
(cl-find emoji (plist-get (telega-stickerset-get
telega--animated-emojis-stickerset-id 'locally)
:stickers)
:test #'equal
:key (lambda (obj)
(let ((sticker-emoji (telega-tl-str obj :emoji)))
(if (telega-emoji-fe0f-p sticker-emoji)
(substring sticker-emoji 0 1)
sticker-emoji)))))
(defun telega-sticker-toggle-favorite (sticker)
"Toggle sticker as favorite."
(interactive (list (telega-sticker-at)))
(funcall (if (telega-sticker-favorite-p sticker)
#'telega--removeFavoriteSticker
#'telega--addFavoriteSticker)
(list :@type "inputFileId"
:id (telega--tl-get sticker :sticker :id))
(lambda (_ignoredreply)
;; Update corresponding sticker image
(telega-media--image-update
(cons sticker 'telega-sticker--create-image)
(cons sticker :sticker))
(force-window-update))))
(defun telega-sticker--svg-outline-path (svg tl-path factor &rest args)
"Draw closed TL-PATH into SVG."
(let* ((x-factor (car factor))
(y-factor (cdr factor))
(tl-path-commands (plist-get tl-path :commands))
(tl-cmd1 (aref tl-path-commands 0))
(tl-move-to (cl-ecase (telega--tl-type tl-cmd1)
(vectorPathCommandCubicBezierCurve
(plist-get tl-cmd1 :start_control_point))
(vectorPathCommandLine
(plist-get tl-cmd1 :end_point))))
(svg-path-commands
(mapconcat
(lambda (path-cmd)
(cl-ecase (telega--tl-type path-cmd)
(vectorPathCommandCubicBezierCurve
(let ((p1 (plist-get path-cmd :start_control_point))
(p2 (plist-get path-cmd :end_control_point))
(p3 (plist-get path-cmd :end_point)))
(format "C%f,%f,%f,%f,%f,%f"
(* x-factor (plist-get p1 :x))
(* y-factor (plist-get p1 :y))
(* x-factor (plist-get p2 :x))
(* y-factor (plist-get p2 :y))
(* x-factor (plist-get p3 :x))
(* y-factor (plist-get p3 :y)))))
(vectorPathCommandLine
(let ((end-point (plist-get path-cmd :end_point)))
(format "L%f,%f"
(* x-factor (plist-get end-point :x))
(* y-factor (plist-get end-point :y)))))))
tl-path-commands "\n")))
(apply #'telega-svg-path svg
(concat (format "M%f,%f\n"
(* x-factor (plist-get tl-move-to :x))
(* y-factor (plist-get tl-move-to :y)))
svg-path-commands "Z")
args)))
(defun telega-sticker--svg-outline (svg sticker &rest args)
"Draw STICKER outline path to the SVG."
(declare (indent 2))
(cl-assert (plist-get sticker :outline))
(let ((factor (cons (/ (float (dom-attr svg 'width))
(plist-get sticker :width))
(/ (float (dom-attr svg 'height))
(plist-get sticker :height)))))
(seq-doseq (outline-path (plist-get sticker :outline))
(apply #'telega-sticker--svg-outline-path
svg outline-path factor args))))
(defun telega-sticker--progress-svg (sticker)
"Generate svg for STICKER showing download progress."
(let* ((emoji (telega-sticker-emoji sticker 'no-props))
(xh (telega-chars-xheight (car telega-sticker-size)))
(w-chars (telega-chars-in-width xh))
(xw (telega-chars-xwidth w-chars))
(svg (telega-svg-create xw xh))
(font-size (/ xh 2)))
(if (plist-get sticker :outline)
(telega-sticker--svg-outline svg sticker
:fill (telega-color-name-as-hex-2digits
(or (face-foreground 'shadow) "gray50")))
;; draw emoji and progress circle
(svg-text svg (if (string-empty-p emoji)
"?"
(substring emoji 0 1))
:font-size font-size
:font-weight "bold"
:fill "white"
:font-family "monospace"
:x (/ font-size 2)
:y (+ font-size (/ font-size 3)))
(telega-svg-progress svg (telega-file--downloading-progress
(telega-sticker--file sticker))))
(telega-svg-image svg :scale 1.0
:width xw :height xh
:ascent 'center
:mask 'heuristic
;; text of correct width
:telega-text
(make-string
(or (car (plist-get sticker :telega-image-cwidth-xmargin))
w-chars)
?X))
))
(defvar telega-sticker--convert-cmd
(if (or telega-use-docker
(executable-find "dwebp")
(not (telega-ffplay-has-decoder-p "webp")))
"dwebp -nofancy -mt -o %p %w"
"ffmpeg -v quiet -i %w %p")
"Command to convert WEBP file to PNG file.
%p - png filename
%w - webp filename.")
(defun telega-sticker--webp-to-png (webp-filename)
"Convert FILENAME in webp format to png.
Return path to png file."
(let ((png-filename (concat (file-name-sans-extension webp-filename)
"_telega.png")))
(unless (file-exists-p png-filename)
(let ((convert-cmd
(telega-docker-exec-cmd
(format-spec telega-sticker--convert-cmd
(format-spec-make ?p png-filename
?w webp-filename))
'try-host-cmd-first nil 'no-error)))
(cond (convert-cmd
(telega-debug "WEBP -> PNG: %s" convert-cmd)
(shell-command-to-string convert-cmd))
((image-type-available-p 'webp)
;; NOTE: If `webp' image is supported by Emacs, use it.
;; We use webp->png converter by default, because it
;; gives better results, then Emacsen `webp' images.
(setq png-filename webp-filename))
(t
(telega-help-message 'no-dwebp-binary
"Can't find `%s' binary. `webp' system package not installed?"
(car (split-string telega-sticker--convert-cmd)))))))
(when (file-exists-p png-filename)
png-filename)))
(defun telega-sticker--create-image (sticker &optional _ignoredfile)
"Return image for the STICKER."
;; Three cases:
;; 1) Sticker downloaded
;; Just show (and cache) sticker image
;;
;; 2) Thumbnail is downloaded, while sticker still downloading
;; Show thumbnail (caching temporary), waiting for sticker to
;; be downloaded
;;
;; 3) Thumbnail and sticker downloading
;; Fallback to `telega-sticker--progress-svg', waiting for
;; thumbnail or sticker to be downloaded
(let* ((sfile (telega-sticker--file sticker))
(tfile (telega-sticker--thumb-file sticker))
(filename (or (and (or telega-sticker--use-thumbnail
(not (telega-sticker-static-p sticker)))
(telega-file--downloaded-p tfile) tfile)
(and (telega-file--downloaded-p sfile) sfile)
(and (telega-file--downloaded-p tfile) tfile)))
(img-file (or (plist-get sticker :telega-ffplay-frame-filename)
(when-let ((fn (telega--tl-get filename :local :path)))
(if (or (fboundp 'imagemagick-types)
; (image-type-available-p 'webp)
(not (equal (file-name-extension fn) "webp")))
fn
(telega-sticker--webp-to-png fn)))))
(img-type (when (fboundp 'imagemagick-types) 'imagemagick))
(cwidth-xmargin (telega-media--cwidth-xmargin
(plist-get sticker :width)
(plist-get sticker :height)
(car telega-sticker-size))))
(if img-file
(apply #'telega-create-image img-file img-type nil
:height (telega-chars-xheight (car telega-sticker-size))
;; NOTE: do not use max-width setting, it will slow
;; down displaying stickers
; :max-width (* (telega-chars-xwidth 1) (cdr telega-sticker-size))
:scale 1.0 :ascent 'center
; :mask 'heuristic
:margin (cons (cdr cwidth-xmargin) 0)
:telega-text (make-string (car cwidth-xmargin) ?X)
(when (telega-sticker-favorite-p sticker)
(list :background telega-sticker-favorite-background)))
;; Fallback to svg
(telega-sticker--progress-svg sticker))))
(defun telega-sticker--create-image-one-line (sticker &optional file)
"Create image for one-line STICKER usage."
(let ((telega-sticker-size (cons 1 (cdr telega-sticker-size))))
(telega-sticker--create-image sticker file)))
(defun telega-sticker--image (sticker &optional image-create-fun cache-prop)
"Return image for the STICKER."
(telega-media--image
(cons sticker (or image-create-fun #'telega-sticker--create-image))
(if (or (and telega-sticker--use-thumbnail
(plist-get sticker :thumbnail))
(not (telega-sticker-static-p sticker)))
(cons (plist-get sticker :thumbnail) :file)
(cons sticker :sticker))
nil cache-prop))
(defun telega-ins--sticker-image (sticker &optional slices-p)
"Inserter for the STICKER.
If SLICES-P is non-nil, then insert STICKER using slices."
(if (or (not telega-use-images)
(not (display-graphic-p (telega-x-frame))))
(telega-ins "<STICKER\u00A0" (telega-sticker-emoji sticker) ">")
(funcall (if slices-p #'telega-ins--image-slices #'telega-ins--image)
(telega-sticker--image sticker))))
(defun telega-ins--stickerset-change-button (sset)
(telega-ins--button (if (telega-stickerset-installed-p sset)
;; I18N: XXX
"Uninstall"
"Install")
:value sset
'action 'telega-button--stickerset-change-action))
(defun telega-button--stickerset-change-action (button)
(let ((sset (button-get button :value)))
(telega--changeStickerSet sset (not (telega-stickerset-installed-p sset)))
(telega-save-cursor
(telega-button--change button
(telega-ins--stickerset-change-button sset)))))
(defun telega-sticker--choosen-action (button)
"Execute action when sticker BUTTON is pressed."
(cl-assert telega--chat)
(cl-assert (eq major-mode 'help-mode))
(let ((sticker (telega-sticker-at button))
(thw-emoji telega-help-win--emoji)
(chat telega--chat))
;; NOTE: Kill help win before modifying chatbuffer, because it
;; recovers window configuration on kill
(quit-window 'kill-buffer)
(with-telega-chatbuf chat
;; Substitute emoji with sticker, in case help win has
;; `telega-help-win--emoji' set
(when thw-emoji
(let* ((input (telega-chatbuf-input-string))
(emoji (and (> (length input) 0) (substring input 0 1))))
(unless (string= emoji thw-emoji)
(error "Emoji changed %s -> %s" thw-emoji emoji))
(goto-char telega-chatbuf--input-marker)
(delete-char 1)))
(telega-chatbuf-sticker-insert sticker))))
(defun telega-ins--sticker-list (stickers &optional column)
"Insert STICKERS list int current buffer.
COLUMN specifies column to fill stickers into. By default
`fill-column' is used."
(declare (indent 1))
(seq-doseq (sticker stickers)
(telega-ins-prefix (unless (bolp) "\n")
(telega-button--insert 'telega-sticker sticker
'help-echo (let ((emoji (telega-sticker-emoji sticker)))
(concat "Emoji: " emoji " " (telega-emoji-name emoji)))
'action 'telega-sticker--choosen-action
'cursor-sensor-functions
(when (and (not (telega-sticker-static-p sticker))
telega-sticker-animated-play)
(list (telega-sticker--gen-sensor-func sticker)))
)
(when telega-sticker-set-show-emoji
(telega-ins (telega-sticker-emoji sticker) " "))
;; NOTE: `telega-ins-prefix' will insert "\n" if next sexp
;; evaluates to non-nil
(> (current-column) (or column (current-fill-column))))
;; (redisplay)
))
(defun telega-describe-stickerset (sset &optional for-chat)
"Describe the sticker set.
SSET can be either `sticker' or `stickerSetInfo'."
(with-telega-help-win "*Telegram Sticker Set*"
(setq telega--chat for-chat)
(setq telega-help-win--stickerset sset)
(telega-ins "Title: " (telega-tl-str sset :title))
(when (plist-get sset :is_official)
(telega-ins (telega-symbol 'verified)))
(telega-ins " ")
(telega-ins--stickerset-change-button sset)
(telega-ins "\n")
(telega-ins "Link: ")
(let ((link (concat (or (plist-get telega--options :t_me_url)
"https://t.me/")
"addstickers/" (plist-get sset :name))))
(telega-ins--raw-button (telega-link-props 'url link)
(telega-ins link))
(telega-ins "\n"))
(when telega-debug
(telega-ins-fmt "Get: (telega-stickerset-get \"%s\")\n"
(plist-get sset :id)))
;; NOTE: In case SSET is "stickerSetInfo" fetch real sticker set
;; and insert all the stickers
(let ((sticker-list-ins
(lambda (sticker-set)
(let ((stickers (plist-get sticker-set :stickers)))
(telega-ins-fmt "%s: %d\n"
(cl-ecase (telega--tl-type (plist-get sticker-set :sticker_type))
(stickerTypeStatic "Stickers")
(stickerTypeAnimated "Animated Stickers")
(stickerTypeVideo "Video Stickers")
(stickerTypeMask "Masks"))
(length stickers))
(telega-ins--sticker-list stickers))))
(sset-id (plist-get sset :id)))
(when (eq (telega--tl-type sset) 'stickerSetInfo)
(setq sset (telega-stickerset-get sset-id 'locally)))
;; Now SSET is always "stickerSet"
(if sset
(funcall sticker-list-ins sset)
;; Set `telega--help-win-param', so callback won't insert
;; stickers list of stickerset changes during request to
;; telega-server.
(setq telega--help-win-param sset-id)
(telega-stickerset-get sset-id nil
(telega-sticker-list--gen-ins-callback 'loading
sticker-list-ins
sset-id))))))
(defun telega-sticker-help (sticker)
"Describe sticker set for STICKER."
(interactive (list (telega-sticker-at (point))))
(telega-describe-stickerset
(telega-stickerset-get (plist-get sticker :set_id))))
(defun telega-sticker-list--gen-ins-callback (show-loading-p
&optional insert-func
for-param)
"Generate callback to be used as callback.
Insert list of stickers at MARKER position.
Functions to be used with:
`telega--getStickers', `telega--getFavoriteStickers',
`telega--getRecentStickers' or `telega--searchStickerSets'.
If FOR-PARAM is specified, then insert only if
`telega--help-win-param' is eq to FOR-PARAM."
(declare (indent 1))
(let ((marker (point-marker)))
(when show-loading-p
(telega-ins-i18n "lng_profile_loading")
(telega-ins "\n"))
(lambda (&rest insert-args)
(let ((marker-buf (marker-buffer marker)))
(when (buffer-live-p marker-buf)
(with-current-buffer marker-buf
(when (or (null for-param)
(eq telega--help-win-param for-param))
(telega-save-excursion
(let ((inhibit-read-only t))
(goto-char marker)
(when show-loading-p
(delete-region marker (point-at-eol)))
(apply insert-func insert-args))))))))))
(defun telega-sticker-choose-favorite-or-recent (for-chat)
"Choose recent sticker FOR-CHAT."
(interactive (list telega-chatbuf--chat))
(cl-assert for-chat)
(let ((help-window-select t))
(with-telega-help-win "*Telegram Stickers*"
(setq telega--chat for-chat)
;; NOTE: use callbacks for async stickers loading
(telega-ins "Favorite:\n")
(telega--getFavoriteStickers
(telega-sticker-list--gen-ins-callback 'loading
#'telega-ins--sticker-list))
(telega-ins "\nRecent:\n")
(telega--getRecentStickers nil
(telega-sticker-list--gen-ins-callback 'loading
#'telega-ins--sticker-list)))))
(defun telega-sticker-choose-emoji (emoji for-chat)
"Choose sticker by EMOJI FOR-CHAT."
(let ((help-window-select t))
(with-telega-help-win "*Telegram Stickers*"
(setq telega--chat for-chat)
(setq telega-help-win--emoji emoji)
;; NOTE: use callbacks for async stickers loading
(telega-ins "Installed:\n")
(telega--getStickers emoji nil
(telega-sticker-list--gen-ins-callback 'loading
#'telega-ins--sticker-list))
(telega-ins "\nPublic:\n")
(telega--searchStickers emoji nil
(telega-sticker-list--gen-ins-callback 'loading
#'telega-ins--sticker-list))
)))
(defun telega-stickerset--minibuf-post-command ()
"Function to complete stickerset for `completion-in-region-function'."
;; NOTE:
;; - Avoid help window selection by binding `help-window-select'
;; - Avoid smart packages (such as shackle) to handle help window by
;; binding `display-buffer-alist'
(let* ((help-window-select nil)
(display-buffer-alist nil) ;XXX
(start (minibuffer-prompt-end))
(end (point))
(str (cond ((memq 'ido-exhibit post-command-hook)
;; ido used
;;(and (boundp 'ido-cur-item) ido-matches)
(caar ido-matches))
((memq 'ivy--queue-exhibit post-command-hook)
;; ivy used
(nth ivy--index ivy--old-cands))
(t (buffer-substring start end))))
(comp (when str (car (all-completions str telega-minibuffer--choices))))
(sset-id (when comp (cadr (assoc comp telega-minibuffer--choices))))
(sset (when sset-id
(or (cl-find sset-id telega--stickersets-installed
:test 'equal
:key (telega--tl-prop :id))
(telega-stickerset-get sset-id))))
(tss-buffer (get-buffer "*Telegram Sticker Set*")))
(when (and sset
(or (not (buffer-live-p tss-buffer))
(not (with-current-buffer tss-buffer
(and (eq telega-minibuffer--chat telega--chat)
(eq sset telega-help-win--stickerset))))))
(let ((telega-sticker--use-thumbnail t))
(telega-describe-stickerset sset telega-minibuffer--chat)
;; Remove annoying "Type C-x 1 to delete the help window."
;; message
(message nil)))
;; Always pop to buffer, it might be hidden at the moment
(when (buffer-live-p tss-buffer)
(temp-buffer-window-show tss-buffer))
))
(defun telega-stickerset-name (sset)
"Return name for the sticker set SSET."
(concat (when telega-sticker-set-show-cover
(when-let ((cover (car (append (or (plist-get sset :covers)
(plist-get sset :stickers))
nil))))
;; NOTE: helm uses 'display property of the first
;; character and expects it to be string, so we add
;; zero-width space in there
(concat "\u200B"
(propertize
(telega-sticker-emoji cover)
'display (telega-sticker--image
cover #'telega-sticker--create-image-one-line
:telega-sticker-cover-1)))))
(plist-get sset :name)))
(defun telega-stickerset-completing-read (prompt &optional sticker-sets)
"Read stickerset completing their names.
If STICKER-SETS is specified, then they are used,
otherwise installed stickersets is used.
Return sticker set."
(message "Loading stickers, please wait...")
(let* ((completion-ignore-case t)
(ssets (or sticker-sets
telega--stickersets-installed
;; NOTE: "getInstalledStickerSets" could generate
;; "updateInstalledStickerSets" event, we don't
;; want to handle it, since we are already getting
;; list of installed stickersets
(let ((telega-server--inhibit-events
(cons "updateInstalledStickerSets"
telega-server--inhibit-events)))
(setq telega--stickersets-installed
(telega--getInstalledStickerSets))
(setq telega--stickersets-installed-ids
(mapcar (telega--tl-prop :id)
telega--stickersets-installed))
telega--stickersets-installed)
(user-error "No installed sticker sets")))
;; Bindings used in `telega-stickerset-completing-read'
(telega-minibuffer--chat telega-chatbuf--chat)
(telega-minibuffer--choices
(mapcar (lambda (sset)
(list (telega-stickerset-name sset) (plist-get sset :id)))
ssets))
(sset-name
(minibuffer-with-setup-hook
(lambda ()
(add-hook 'post-command-hook
'telega-stickerset--minibuf-post-command t t))
(funcall telega-completing-read-function
prompt telega-minibuffer--choices nil t))))
(cl-find (cadr (assoc sset-name telega-minibuffer--choices)) ssets
:test #'equal
:key (telega--tl-prop :id))
))
(defun telega-stickerset-choose (sset)
"Interactive choose stickerset."
(interactive (list (telega-stickerset-completing-read "Sticker set: ")))
(let ((tss-buffer (get-buffer "*Telegram Sticker Set*")))
(if (and (buffer-live-p tss-buffer)
(with-current-buffer tss-buffer
(and (eq telega-help-win--stickerset sset)
(eq telega--chat telega-chatbuf--chat))))
(select-window
(temp-buffer-window-show tss-buffer))
(let ((help-window-select t))
(telega-describe-stickerset sset telega-chatbuf--chat)))))
(defun telega-stickerset-search (query)
"Search interactively for sticker matching QUERY."
(interactive "sStickerSet query: ")
(let ((sticker-sets (telega--searchStickerSets query)))
(unless sticker-sets
(user-error "No sticker set found for: %s" query))
(telega-stickerset-choose
(if (> (length sticker-sets) 1)
;; Multiple sticker sets
(telega-stickerset-completing-read
"Sticker set: " sticker-sets)
;; Single sticker set
(car sticker-sets)))))
(defun telega-stickerset-trends (&optional premium-p)
"Show trending stickers.
If prefix argument is specified, then show trends in Premium stickers."
(interactive "P")
(let ((sticker-sets (or (when premium-p
telega--stickersets-trending-premium)
(telega--getTrendingStickerSets))))
(unless sticker-sets
(user-error "No trending sticker sets"))
(telega-stickerset-choose
(telega-stickerset-completing-read
"Trending sticker set: " sticker-sets))))
(defun telega-sticker--animate-callback (_proc frame sticker &optional for-msg)
"Callback for inline animated sticker playback."
(plist-put sticker :telega-ffplay-frame-filename (cdr frame))
(telega-media--image-update
(cons sticker 'telega-sticker--create-image) nil)
(if for-msg
(telega-msg-redisplay for-msg)
;; NOTE: just redisplay the image, not redisplaying full message
(force-window-update)))
(defun telega-sticker--animate-to-png (sticker-file xheight callback
&rest callback-args)
"Animate animated sticker to series of PNG files."
(declare (indent 2))
(cl-assert (telega-file--downloaded-p sticker-file))
;; Kill previously running animations/ffplay if any
(telega-ffplay-stop)
;; XXX: heavy heuristics to detect HiDPI displays on MacOS
;; If resulting PNG is too small and DPI is high, then consider HiDPI
;; mode is in use
;; png height = 76 * 4 = 306 is still generates pretty fast on modern PC
;; See https://t.me/emacs_telega/25785
(when (and (< xheight 76)
(> (round (/ (display-pixel-height) (/ (display-mm-height) 25.4)))
96))
(setq xheight (* xheight 4)))
(let* ((prefix (telega-temp-name "png-sticker-anim"))
(shell-cmd
(if telega-use-docker
(telega-docker-exec-cmd
(format "sh -c \"gunzip -c '%s' | tgs2png -s 0x%d - | telega-server -E %s\""
(telega--tl-get sticker-file :local :path)
xheight prefix))
(format
"gunzip -c '%s' | %s -s 0x%d - | %s -E %s"
(telega--tl-get sticker-file :local :path)
(or (executable-find "tgs2png")
(error "tgs2png not found in `exec-path', \
Install from https://github.com/zevlg/tgs2png"))
xheight (telega-server--process-command) prefix)))
(process-adaptive-read-buffering nil) ;no buffering please
(proc (start-process-shell-command
"sticker-animate" (get-buffer-create telega-ffplay-buffer-name)
shell-cmd)))
(telega-debug "Running sticker-animate: %s" shell-cmd)
(set-process-plist proc (list :prefix prefix
:nframes -1
:frames nil
:callback callback
:callback-args callback-args))
(set-process-query-on-exit-flag proc nil)
(set-process-sentinel proc 'telega-ffplay--png-sentinel)
(set-process-filter proc 'telega-ffplay--png-filter)
proc))
(defun telega-sticker--animate (sticker &optional for-msg)
"Start animating animated STICKER."
(cl-assert (not (telega-sticker-static-p sticker)))
(telega-file--download (plist-get sticker :sticker) 32
(lambda (file)
(telega-file--renew sticker :sticker)
(when (telega-file--downloaded-p file)
(cl-ecase (telega--tl-type (plist-get sticker :type))
(stickerTypeAnimated
(telega-sticker--animate-to-png file
(telega-chars-xheight (car telega-sticker-size))
#'telega-sticker--animate-callback sticker for-msg))
(stickerTypeVideo
(telega-ffplay-to-png (telega--tl-get file :local :path)
"-pix_fmt rgba -vf scale=256:256 -an"
(list #'telega-sticker--animate-callback sticker for-msg)
;; NOTE: We use "libvpx-vp9" to decode WEBM with alpha
;; channel
:vcodec "libvpx-vp9"))))
)))
(defun telega-sticker--gen-sensor-func (sticker)
"Return sensor function to animate STICKER when entered."
(cl-assert sticker)
(lambda (_window _oldpos dir)
(when (and (not (telega-sticker-static-p sticker))
telega-sticker-animated-play)
(if (eq dir 'entered)
(telega-sticker--animate sticker)
;; dir == left
(telega--cancelDownloadFile (plist-get sticker :sticker))))))
;;; Animations
(define-button-type 'telega-animation
:supertype 'telega
:inserter 'telega-ins--animation-image)
(defun telega-animation-at (&optional pos)
"Retur sticker at POS."
(let ((button (button-at (or pos (point)))))
(when (and button (eq (button-type button) 'telega-animation))
(button-get button :value))))
(defsubst telega-animation--file (animation)
"Return ANIMATIONS's file."
(telega-file--renew animation :animation))
(defalias 'telega-animation--thumb-file 'telega-sticker--thumb-file)
(defun telega-animation--download (animation)
"Ensure media content for ANIMATION has been downloaded."
(let ((animation-file (telega-animation--file animation))
(thumb-file (telega-animation--thumb-file animation)))
(when (telega-file--need-download-p thumb-file)
(telega-file--download thumb-file 5))
(when telega-animation-download-saved
(when (telega-file--need-download-p animation-file)
(telega-file--download animation-file 1)))
))
(defun telega-animation--progress-svg (animation)
"Generate svg for STICKER showing download progress."
(let* ((xh (telega-chars-xheight telega-animation-height))
(w-chars (telega-chars-in-width xh))
(xw (telega-chars-xwidth w-chars))
(svg (telega-svg-create xw xh)))
(telega-svg-progress svg (telega-file--downloading-progress
(telega-animation--file animation)))
(telega-svg-image
svg :scale 1.0
:width xw :height xh
:ascent 'center
:mask 'heuristic
;; text of correct width
:telega-text
(make-string
(or (car (plist-get animation :telega-image-cwidth-xmargin))
w-chars)
?X))
))
(defun telega-animation--create-image (animation &optional _fileignored)
"Return image for the ANIMATION."
;; Cases:
;; 1) Next inline animation frame (set in
;; `telega-animation--ffplay-callback') is available - display it
;;
;; 2) Thumbnail is downloaded, while animation still downloading
;; Show thumbnail (caching temporary), waiting for animation to
;; be downloaded
;;
;; 2.5) Animation/thumbnail is downloading, minithumbnail is
;; available - display it
;;
;; 3) Thumbnail and animation downloading
;; Fallback to svg loading image
(let* ((anim-frame-filename
(plist-get animation :telega-ffplay-frame-filename))
(minithumb (plist-get animation :minithumbnail))
(tfile (telega-animation--thumb-file animation))
(cwidth-xmargin (plist-get animation :telega-image-cwidth-xmargin)))
(unless cwidth-xmargin
(setq cwidth-xmargin (telega-media--cwidth-xmargin
(plist-get animation :width)
(plist-get animation :height)
telega-animation-height))
(plist-put animation :telega-image-cwidth-xmargin cwidth-xmargin))
(let ((img-props
(list :height (telega-chars-xheight telega-animation-height)
:scale 1.0
:ascent 'center
:margin (cons (cdr cwidth-xmargin) 0)
:telega-text (make-string (car cwidth-xmargin) ?X))))
(cond ((and anim-frame-filename
;; NOTE: Check file for existance, to avoid errors in
;; `insert-file-contents-literally' if file does not
;; exists for some strange reason
(file-exists-p anim-frame-filename))
;; Remove this prop, because file is about to be deleted
(plist-put animation :telega-ffplay-frame-filename nil)
(apply #'telega-create-image
(with-temp-buffer
(set-buffer-multibyte nil)
(insert-file-contents-literally anim-frame-filename)
(buffer-string))
(when (fboundp 'imagemagick-types) 'imagemagick) t img-props))
((telega-file--downloaded-p tfile)
(apply #'telega-create-image
(telega--tl-get tfile :local :path)
(when (fboundp 'imagemagick-types) 'imagemagick) nil img-props))
(minithumb
(telega-minithumb--create-image minithumb telega-animation-height))
(t (telega-animation--progress-svg animation))))))
(defun telega-ins--animation-image (animation &optional slices-p)
"Inserter for the ANIMATION.
If SLICES-P is non-nil, then insert ANIMATION using slices."
(let ((aimage (telega-media--image
(cons animation 'telega-animation--create-image)
(cons (plist-get animation :thumbnail) :file))))
(if slices-p
(telega-ins--image-slices aimage)
(telega-ins--image aimage))))
(defun telega-animation--choosen-action (button)
"Execute action when animation BUTTON is pressed."
(cl-assert telega--chat)
(cl-assert (eq major-mode 'help-mode))
(let ((animation (telega-animation-at button))
(chat telega--chat))
;; NOTE: Kill help win before modifying chatbuffer, because it
;; recovers window configuration on kill
(quit-window 'kill-buffer)
(with-telega-chatbuf chat
(telega-chatbuf-animation-insert animation))))
(defun telega-animation--gen-sensor-func (anim)
"Return sensor function to animate ANIM when entered."
(cl-assert anim)
(lambda (_window _oldpos dir)
(when telega-animation-play-inline
(if (eq dir 'entered)
(telega-file--download (telega-file--renew anim :animation) 32
(lambda (file)
(when (telega-file--downloaded-p file)
(telega-ffplay-to-png (telega--tl-get file :local :path) "-an"
(list #'telega-animation--ffplay-callback anim)))))
;; dir == left
(telega--cancelDownloadFile (plist-get anim :animation))))))
(defun telega-ins--animation (anim &rest props)
"Inserter for animation ANIM in help buffer.
PROPS are additional properties to the animation button."
(declare (indent 1))
(apply 'telega-button--insert 'telega-animation anim
'action 'telega-animation--choosen-action
;; NOTE: use different sensor functions, so all animations
;; can be places next to each other and still sensor
;; detection will work properly
'cursor-sensor-functions
(list (telega-animation--gen-sensor-func anim))
props))
(defun telega-animation-choose (for-chat animations &optional window-select)
"Choose one of the ANIMATIONS for insertation into FOR-CHAT."
(cl-assert for-chat)
(let ((help-window-select window-select))
(with-telega-help-win "*Telegram Animations*"
(setq telega--chat for-chat)
(seq-doseq (anim animations)
(telega-ins-prefix (unless (bolp) "\n")
(telega-ins--animation anim)
(> (current-column) (current-fill-column))))
)))
(defun telega-animation-choose-saved (for-chat)
"Choose saved animation FOR-CHAT."
(interactive (list telega-chatbuf--chat))
(telega-animation-choose for-chat (telega--getSavedAnimations) t))