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Update Android port

* doc/emacs/android.texi (Android Startup): Document `content'
special directory.
* java/debug.sh (is_root): Improve /bin/tee detection.
* java/org/gnu/emacs/EmacsNative.java (EmacsNative): New
function `dup'.
* java/org/gnu/emacs/EmacsOpenActivity.java (EmacsOpenActivity)
(checkReadableOrCopy, onCreate): Create content directory names
when the file is not readable.
* java/org/gnu/emacs/EmacsService.java (EmacsService)
(openContentUri, checkContentUri): New functions.
* src/android.c (struct android_emacs_service): New methods.
(android_content_name_p, android_get_content_name)
(android_check_content_access): New function.
(android_fstatat, android_open): Implement opening content URIs.
(dup): Export to Java.
(android_init_emacs_service): Initialize new methods.
(android_faccessat): Implement content file names.
This commit is contained in:
Po Lu 2023-02-21 15:28:06 +08:00
parent d197d73491
commit 7aa4ffddd8
6 changed files with 379 additions and 13 deletions

View file

@ -57,6 +57,8 @@ import android.os.Build;
import android.os.Bundle;
import android.os.ParcelFileDescriptor;
import android.util.Log;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
@ -69,6 +71,8 @@ import java.io.UnsupportedEncodingException;
public class EmacsOpenActivity extends Activity
implements DialogInterface.OnClickListener
{
private static final String TAG = "EmacsOpenActivity";
private class EmacsClientThread extends Thread
{
private ProcessBuilder builder;
@ -178,12 +182,16 @@ public class EmacsOpenActivity extends Activity
dialog.show ();
}
/* Check that the specified FILE is readable. If it is not, then
copy the file in FD to a location in the system cache
directory and return the name of that file. */
/* Check that the specified FILE is readable. If Android 4.4 or
later is being used, return URI formatted into a `/content/' file
name.
If it is not, then copy the file in FD to a location in the
system cache directory and return the name of that file. */
private String
checkReadableOrCopy (String file, ParcelFileDescriptor fd)
checkReadableOrCopy (String file, ParcelFileDescriptor fd,
Uri uri)
throws IOException, FileNotFoundException
{
File inFile;
@ -191,12 +199,34 @@ public class EmacsOpenActivity extends Activity
InputStream stream;
byte buffer[];
int read;
String content;
Log.d (TAG, "checkReadableOrCopy: " + file);
inFile = new File (file);
if (inFile.setReadable (true))
if (inFile.canRead ())
return file;
Log.d (TAG, "checkReadableOrCopy: NO");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
{
content = "/content/" + uri.getEncodedAuthority ();
for (String segment : uri.getPathSegments ())
content += "/" + Uri.encode (segment);
/* Append the URI query. */
if (uri.getEncodedQuery () != null)
content += "?" + uri.getEncodedQuery ();
Log.d (TAG, "checkReadableOrCopy: " + content);
return content;
}
/* inFile is now the file being written to. */
inFile = new File (getCacheDir (), inFile.getName ());
buffer = new byte[4098];
@ -398,7 +428,7 @@ public class EmacsOpenActivity extends Activity
if (names != null)
fileName = new String (names, "UTF-8");
fileName = checkReadableOrCopy (fileName, fd);
fileName = checkReadableOrCopy (fileName, fd, uri);
}
catch (FileNotFoundException exception)
{