Update Android port

* java/Makefile.in (clean): Fix distclean and bootstrap-clean rules.
* java/debug.sh (jdb_port):
(attach_existing):
(num_pids):
(line): Add new options to upload a gdbserver binary to the device.

* java/org/gnu/emacs/EmacsActivity.java (EmacsActivity): Make
focusedActivities public.
* java/org/gnu/emacs/EmacsContextMenu.java (EmacsContextMenu):
New class.
* java/org/gnu/emacs/EmacsDrawRectangle.java (perform): Fix
bounds computation.
* java/org/gnu/emacs/EmacsGC.java (markDirty): Set stroke width
explicitly.
* java/org/gnu/emacs/EmacsService.java (EmacsService)
(getLocationOnScreen, nameKeysym): New functions.
* java/org/gnu/emacs/EmacsView.java (EmacsView): Disable focus
highlight.
(onCreateContextMenu, popupMenu, cancelPopupMenu): New
functions.
* java/org/gnu/emacs/EmacsWindow.java (EmacsWindow): Implement a
kind of ``override redirect'' window for tooltips.
* src/android.c (struct android_emacs_service): New method
`name_keysym'.
(android_run_select_thread, android_init_events):
(android_select): Release select thread on semaphores instead of
signals to avoid one nasty race on SIGUSR2 delivery.
(android_init_emacs_service): Initialize new method.
(android_create_window): Handle CW_OVERRIDE_REDIRECT.
(android_move_resize_window, android_map_raised)
(android_translate_coordinates, android_get_keysym_name)
(android_build_string, android_exception_check): New functions.
* src/android.h: Update prototypes.

* src/androidfns.c (android_set_parent_frame, Fx_create_frame)
(unwind_create_tip_frame, android_create_tip_frame)
(android_hide_tip, compute_tip_xy, Fx_show_tip, Fx_hide_tip)
(syms_of_androidfns): Implement tooltips and iconification
reporting.

* src/androidgui.h (enum android_window_value_mask): Add
CWOverrideRedirect.
(struct android_set_window_attributes): Add `override_redirect'.
(ANDROID_IS_MODIFIER_KEY): Recognize Caps Lock.

* src/androidmenu.c (struct android_emacs_context_menu): New
struct.
(android_init_emacs_context_menu, android_unwind_local_frame)
(android_push_local_frame, android_menu_show, init_androidmenu):
New functions.

* src/androidterm.c (handle_one_android_event): Fix NULL pointer
dereference.
(android_fullscreen_hook): Handle fullscreen correctly.
(android_draw_box_rect): Fix top line.
(get_keysym_name): Implement function.
(android_create_terminal): Remove scroll bar stubs and add menu
hook.

* src/androidterm.h: Update prototypes.
* src/emacs.c (android_emacs_init): Initialize androidmenu.c.
* xcompile/Makefile.in: Fix clean rules.

java/org/gnu/emacs/EmacsContextMenu.java

@@ -0,0 +1,213 @@
+/* Communication module for Android terminals.  -*- c-file-style: "GNU" -*-
+
+Copyright (C) 2023 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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.
+
+GNU Emacs 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 GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
+
+package org.gnu.emacs;
+
+import java.util.List;
+import java.util.ArrayList;
+
+import android.content.Context;
+import android.content.Intent;
+
+import android.os.Bundle;
+
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+
+import android.widget.PopupMenu;
+
+/* Context menu implementation.  This object is built from JNI and
+   describes a menu hiearchy.  Then, `inflate' can turn it into an
+   Android menu, which can be turned into a popup (or other kind of)
+   menu.  */
+
+public class EmacsContextMenu
+{
+  private class Item
+  {
+    public int itemID;
+    public String itemName;
+    public EmacsContextMenu subMenu;
+    public boolean isEnabled;
+  };
+
+  public List<Item> menuItems;
+  public String title;
+  private EmacsContextMenu parent;
+
+  /* Create a context menu with no items inside and the title TITLE,
+     which may be NULL.  */
+
+  public static EmacsContextMenu
+  createContextMenu (String title)
+  {
+    EmacsContextMenu menu;
+
+    menu = new EmacsContextMenu ();
+    menu.menuItems = new ArrayList<Item> ();
+    menu.title = title;
+
+    return menu;
+  }
+
+  /* Add a normal menu item to the context menu with the id ITEMID and
+     the name ITEMNAME.  Enable it if ISENABLED, else keep it
+     disabled.  */
+
+  public void
+  addItem (int itemID, String itemName, boolean isEnabled)
+  {
+    Item item;
+
+    item = new Item ();
+    item.itemID = itemID;
+    item.itemName = itemName;
+    item.isEnabled = isEnabled;
+
+    menuItems.add (item);
+  }
+
+  /* Create a disabled menu item with the name ITEMNAME.  */
+
+  public void
+  addPane (String itemName)
+  {
+    Item item;
+
+    item = new Item ();
+    item.itemName = itemName;
+
+    menuItems.add (item);
+  }
+
+  /* Add a submenu to the context menu with the specified title and
+     item name.  */
+
+  public EmacsContextMenu
+  addSubmenu (String itemName, String title)
+  {
+    EmacsContextMenu submenu;
+    Item item;
+
+    item = new Item ();
+    item.itemID = 0;
+    item.itemName = itemName;
+    item.subMenu = createContextMenu (title);
+    item.subMenu.parent = this;
+
+    menuItems.add (item);
+    return item.subMenu;
+  }
+
+  /* Add the contents of this menu to MENU.  */
+
+  private void
+  inflateMenuItems (Menu menu)
+  {
+    Intent intent;
+    MenuItem menuItem;
+    Menu submenu;
+
+    for (Item item : menuItems)
+      {
+	if (item.subMenu != null)
+	  {
+	    /* This is a submenu.  Create the submenu and add the
+	       contents of the menu to it.  */
+	    submenu = menu.addSubMenu (item.itemName);
+	    inflateMenuItems (submenu);
+	  }
+	else
+	  {
+	    menuItem = menu.add (item.itemName);
+
+	    /* If the item ID is zero, then disable the item.  */
+	    if (item.itemID == 0 || !item.isEnabled)
+	      menuItem.setEnabled (false);
+	  }
+      }
+  }
+
+  /* Enter the items in this context menu to MENU.  Create each menu
+     item with an Intent containing a Bundle, where the key
+     "emacs:menu_item_hi" maps to the high 16 bits of the
+     corresponding item ID, and the key "emacs:menu_item_low" maps to
+     the low 16 bits of the item ID.  */
+
+  public void
+  expandTo (Menu menu)
+  {
+    inflateMenuItems (menu);
+  }
+
+  /* Return the parent or NULL.  */
+
+  public EmacsContextMenu
+  parent ()
+  {
+    return parent;
+  }
+
+  /* Like display, but does the actual work and runs in the main
+     thread.  */
+
+  private boolean
+  display1 (EmacsWindow window, int xPosition, int yPosition)
+  {
+    return window.view.popupMenu (this, xPosition, yPosition);
+  }
+
+  /* Display this context menu on WINDOW, at xPosition and
+     yPosition.  */
+
+  public boolean
+  display (final EmacsWindow window, final int xPosition,
+	   final int yPosition)
+  {
+    Runnable runnable;
+    final Holder<Boolean> rc;
+
+    rc = new Holder<Boolean> ();
+
+    runnable = new Runnable () {
+	@Override
+	public void
+	run ()
+	{
+	  synchronized (this)
+	    {
+	      rc.thing = display1 (window, xPosition, yPosition);
+	      notify ();
+	    }
+	}
+      };
+
+    try
+      {
+	runnable.wait ();
+      }
+    catch (InterruptedException e)
+      {
+	EmacsNative.emacsAbort ();
+      }
+
+    return rc.thing;
+  }
+};