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+;;; jao-embark-targets.el --- embark actions                 -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2021  jao
+
+;; Author: jao <mail@jao.io>
+;; Keywords: convenience
+
+;; This program 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.
+
+;; This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Embark targets and actions
+
+;;; Code:
+
+(require 'embark)
+
+(declare-function w3m-anchor "w3m")
+
+(defvar jao-embark-targets-video-url-rx
+  (format "^https?://\\(?:www\\.\\)?%s/.+"
+          (regexp-opt '("youtu.be"
+                        "youtube.com"
+                        "blip.tv"
+                        "vimeo.com"
+                        "infoq.com")
+                      t))
+  "A regular expression matching URLs that point to video streams")
+
+(defun jao-embark-targets--w3m-anchor ()
+  (when (not (region-active-p))
+    (when-let ((url (or (w3m-anchor) w3m-current-url)))
+      (cons 'url url))))
+
+(defun jao-embark-targets--refine-url (url)
+  (if (string-match-p jao-embark-targets-video-url-rx url)
+      (cons 'video-url url)
+    (cons 'url url)))
+
+(defun jao-embark-targets-play-video-url (&optional url)
+  (interactive "sURL: ")
+  (let ((cmd (format "mpv %s" (shell-quote-argument url))))
+    (start-process-shell-command "mpv" nil cmd)))
+
+(embark-define-keymap jao-embark-targets-video-url-map
+  "Actions on URLs pointing to remote video streams."
+  :parent embark-url-map
+  ("p" jao-embark-targets-play-video-url))
+
+(define-key embark-url-map (kbd "f") #'browse-url-firefox)
+
+(add-to-list 'embark-target-finders #'jao-embark-targets--w3m-anchor)
+(add-to-list 'embark-transformer-alist '(url . jao-embark-targets--refine-url))
+(add-to-list 'embark-keymap-alist '(video-url . jao-embark-targets-video-url-map))
+
+(provide 'jao-embark-targets)
+;;; jao-embark-targets.el ends here