Tweak how auto fullscreen option works

When auto fullscreen is enabled, enter fullscreen on each media load
unless player is in floating mode in which probably user wants it to remain.

src/player.js

@@ -18,7 +18,6 @@ class ClapperPlayer extends PlayerBase
         super._init();
 
         this.seek_done = true;
-        this.doneStartup = false;
         this.needsFastSeekRestore = false;
         this.customVideoTitle = null;
 
@@ -429,20 +428,21 @@ class ClapperPlayer extends PlayerBase
         debug(`URI loaded: ${uri}`);
         this.needsTocUpdate = true;
 
-        if(!this.doneStartup) {
-            this.doneStartup = true;
-
         if(settings.get_boolean('fullscreen-auto')) {
             const root = player.widget.get_root();
             const clapperWidget = root.get_child();
-                if(!clapperWidget.isFullscreenMode) {
+            /* Do not enter fullscreen when already in it
+             * or when in floating mode */
+            if(
+                !clapperWidget.isFullscreenMode
+                && clapperWidget.controlsRevealer.reveal_child
+            ) {
                 this.playOnFullscreen = true;
                 root.fullscreen();
 
                 return;
             }
         }
-        }
         this.play();
     }