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Code Issues Projects Releases Wiki Activity

Implement `fullscreen' on Android 4.0 and later

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* 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.
This commit is contained in:
Po Lu 2023-02-19 13:17:43 +08:00
parent c6809eb927
commit c8f49c9276
6 changed files with 193 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

107
java/org/gnu/emacs/EmacsActivity.java
View file

@ -26,12 +26,16 @@ import java.util.ArrayList;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.widget.FrameLayout;
import android.widget.FrameLayout.LayoutParams;
import android.view.Menu;
import android.view.View;
import android.view.Window;
import android.view.WindowInsets;
import android.view.WindowInsetsController;
import android.widget.FrameLayout.LayoutParams;
import android.widget.FrameLayout;
public class EmacsActivity extends Activity
implements EmacsWindowAttachmentManager.WindowConsumer
@ -56,6 +60,9 @@ public class EmacsActivity extends Activity
/* Whether or not this activity is paused. */
private boolean isPaused;
/* Whether or not this activity is fullscreen. */
private boolean isFullscreen;
static
{
focusedActivities = new ArrayList<EmacsActivity> ();
@ -104,6 +111,8 @@ public class EmacsActivity extends Activity
public void
detachWindow ()
{
syncFullscreenWith (null);
if (window == null)
Log.w (TAG, "detachWindow called, but there is no window");
else
@ -131,6 +140,8 @@ public class EmacsActivity extends Activity
throw new IllegalStateException ("trying to attach window when one"
+ " already exists");
syncFullscreenWith (child);
/* Record and attach the view. */
window = child;
@ -230,6 +241,9 @@ public class EmacsActivity extends Activity
public void
onWindowFocusChanged (boolean isFocused)
{
Log.d (TAG, ("onWindowFocusChanged: "
+ (isFocused ? "YES" : "NO")));
if (isFocused && !focusedActivities.contains (this))
{
focusedActivities.add (this);
@ -257,6 +271,9 @@ public class EmacsActivity extends Activity
{
isPaused = false;
/* Update the window insets. */
syncFullscreenWith (window);
EmacsWindowAttachmentManager.MANAGER.noticeDeiconified (this);
super.onResume ();
}
@ -279,4 +296,88 @@ public class EmacsActivity extends Activity
super.onContextMenuClosed (menu);
}
@SuppressWarnings ("deprecation")
public void
syncFullscreenWith (EmacsWindow emacsWindow)
{
WindowInsetsController controller;
Window window;
int behavior, flags;
View view;
if (emacsWindow != null)
isFullscreen = emacsWindow.fullscreen;
else
isFullscreen = false;
/* On Android 11 or later, use the window insets controller to
control whether or not the view is fullscreen. */
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
{
window = getWindow ();
/* If there is no attached window, return immediately. */
if (window == null)
return;
behavior = WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE;
controller = window.getInsetsController ();
controller.setSystemBarsBehavior (behavior);
if (isFullscreen)
controller.hide (WindowInsets.Type.statusBars ()
| WindowInsets.Type.navigationBars ());
else
controller.show (WindowInsets.Type.statusBars ()
| WindowInsets.Type.navigationBars ());
return;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
{
/* On Android 4.1 or later, use `setSystemUiVisibility'. */
window = getWindow ();
if (window == null)
return;
view = window.getDecorView ();
if (isFullscreen)
{
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT)
/* This flag means that Emacs will be full screen, but
the system will cancel the full screen state upon
switching to another program. */
view.setSystemUiVisibility (View.SYSTEM_UI_FLAG_FULLSCREEN);
else
{
/* These flags means that Emacs will be full screen as
long as the state flag is set. */
flags = 0;
flags |= View.SYSTEM_UI_FLAG_FULLSCREEN;
flags |= View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
flags |= View.SYSTEM_UI_FLAG_IMMERSIVE;
flags |= View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
view.setSystemUiVisibility (flags);
}
}
else
view.setSystemUiVisibility (View.SYSTEM_UI_FLAG_VISIBLE);
}
}
@Override
public void
onAttachedToWindow ()
{
super.onAttachedToWindow ();
/* Update the window insets. */
syncFullscreenWith (window);
}
};