Implement `fullscreen' on Android 4.0 and later

* doc/emacs/android.texi (Android Windowing): Document what new
frame parameters are now supported.
* java/org/gnu/emacs/EmacsActivity.java (EmacsActivity): New
field `isFullscreen'.
(detachWindow, attachWindow): Sync fullscreen state.
(onWindowFocusChanged): Add more logging.
(onResume): Restore previous fullscreen state.
(syncFullscreen): New function.
* java/org/gnu/emacs/EmacsWindow.java (EmacsWindow)
(setFullscreen): New function.
* src/android.c (struct android_emacs_window): Add new method.
(android_init_emacs_window): Look up new method.
(android_set_fullscreen): New function.
* src/androidgui.h:
* src/androidterm.c (android_fullscreen_hook): Implement
accordingly.

1 files changed, 26 insertions, 0 deletions

diff --git a/java/org/gnu/emacs/EmacsWindow.java b/java/org/gnu/emacs/EmacsWindow.java
index 0eca35cec61..90fc4c44198 100644
--- a/java/org/gnu/emacs/EmacsWindow.java
+++ b/java/org/gnu/emacs/EmacsWindow.java
@@ -128,6 +128,9 @@ public class EmacsWindow extends EmacsHandleObject
      events.  */
   public LinkedHashMap<Integer, String> eventStrings;
 
+  /* Whether or not this window is fullscreen.  */
+  public boolean fullscreen;
+
   public
   EmacsWindow (short handle, final EmacsWindow parent, int x, int y,
 	       int width, int height, boolean overrideRedirect)
@@ -1179,4 +1182,27 @@ public class EmacsWindow extends EmacsHandleObject
 
     return any;
   }
+
+  public void
+  setFullscreen (final boolean isFullscreen)
+  {
+    EmacsService.SERVICE.runOnUiThread (new Runnable () {
+	@Override
+	public void
+	run ()
+	{
+	  EmacsActivity activity;
+	  Object tem;
+
+	  fullscreen = isFullscreen;
+	  tem = getAttachedConsumer ();
+
+	  if (tem != null)
+	    {
+	      activity = (EmacsActivity) getAttachedConsumer ();
+	      activity.syncFullscreenWith (EmacsWindow.this);
+	    }
+	}
+      });
+  }
 };