Make js-video-player support save/restore session data.

app/js-video-player/buffer.py

@@ -39,7 +39,25 @@ class AppBuffer(BrowserBuffer):
         index_file = "file://" + (os.path.join(os.path.dirname(__file__), "index.html"))
         self.buffer_widget.setUrl(QUrl(index_file))
 
+        for method_name in ["toggle_play", "toggle_fullscreen"]:
+            self.build_js_method(method_name)
+
         QTimer.singleShot(500, self.play_video)
 
+    def save_session_data(self):
+        return str(self.buffer_widget.execute_js("get_current_time();"))
+
+    def restore_session_data(self, session_data):
+        self.position = session_data
+        QTimer.singleShot(600, self.restore_seek_position)
+
+    def restore_seek_position(self):
+        self.buffer_widget.eval_js("set_current_time('{}');".format(self.position))
+
     def play_video(self):
         self.buffer_widget.eval_js("play('{}');".format("file://" + self.url))
+
+    def build_js_method(self, method_name):
+        def _do ():
+            self.buffer_widget.eval_js("{}();".format(method_name))
+        setattr(self, method_name, _do)

app/js-video-player/index.html

@@ -19,5 +19,21 @@
          var video = document.getElementById('player');
          video.setAttribute('src', file);
      }
+
+     function toggle_play() {
+         player.togglePlay();
+     }
+
+     function toggle_fullscreen() {
+         player.fullscreen.toggle();
+     }
+
+     function get_current_time() {
+         return player.currentTime;
+     }
+
+     function set_current_time(time) {
+         player.currentTime = parseFloat(time);
+     }
     </script>
 </body>

core/browser.py

@@ -405,6 +405,7 @@ class BrowserBuffer(Buffer):
             settings.setAttribute(QWebEngineSettings.JavascriptEnabled, self.emacs_var_dict["eaf-browser-enable-javascript"] == "true")
             settings.setAttribute(QWebEngineSettings.FullScreenSupportEnabled, True)
             settings.setAttribute(QWebEngineSettings.PlaybackRequiresUserGesture, False)
+            settings.setAttribute(QWebEngineSettings.DnsPrefetchEnabled, True)
         except Exception:
             pass
 

eaf.el

@@ -367,6 +367,18 @@ Try not to modify this alist directly.  Use `eaf-setq' to modify instead."
   "The keybinding of EAF Video Player."
   :type 'cons)
 
+(defcustom eaf-js-video-player-keybinding
+  '(("SPC" . "toggle_play")
+    ("f" . "toggle_fullscreen")
+    ("M-g" . "exit_fullscreen")
+    ("<f12>" . "open_dev_tool_page")
+    ("C--" . "zoom_out")
+    ("C-=" . "zoom_in")
+    ("C-0" . "zoom_reset")
+    )
+  "The keybinding of EAF JS Video Player."
+  :type 'cons)
+
 (defcustom eaf-image-viewer-keybinding
   '(("n" . "load_next_image")
     ("p" . "load_prev_image")
@@ -555,6 +567,7 @@ Then EAF will start by gdb, please send new issue with `*eaf*' buffer content wh
   '(("browser" . eaf-browser-keybinding)
     ("pdf-viewer" . eaf-pdf-viewer-keybinding)
     ("video-player" . eaf-video-player-keybinding)
+    ("js-video-player" . eaf-js-video-player-keybinding)
     ("image-viewer" . eaf-image-viewer-keybinding)
     ("camera" . eaf-camera-keybinding)
     ("terminal" . eaf-terminal-keybinding)