android: Introduce LibreOfficeKit.java to bootstrap using LibreOfficeKit.

Change-Id: I5e1758c15684b06ab6809f62f4da6d5f50c071a9

1 files changed, 135 insertions, 0 deletions

diff --git a/android/Bootstrap/src/org/libreoffice/android/LibreOfficeKit.java b/android/Bootstrap/src/org/libreoffice/android/LibreOfficeKit.java
new file mode 100644
index 000000000000..82b889e2548f
--- /dev/null
+++ b/android/Bootstrap/src/org/libreoffice/android/LibreOfficeKit.java
@@ -0,0 +1,135 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package org.libreoffice.android;
+
+import android.app.Activity;
+import android.content.pm.ApplicationInfo;
+import android.util.Log;
+
+import java.io.File;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+
+// final because subclassing would be meaningless.
+public final class LibreOfficeKit
+{
+    // private constructor because instantiating would be meaningless
+    private LibreOfficeKit()
+    {
+    }
+
+    private static String TAG = "lo-bootstrap";
+
+    // Native methods in this class are all implemented in
+    // sal/android/lo-bootstrap.c as the lo-bootstrap library is loaded with
+    // System.loadLibrary() and Android's JNI works only to such libraries, it
+    // seems.
+
+    private static native boolean init(String dataDir,
+                                       String cacheDir,
+                                       String apkFile);
+
+    // Extracts files in the .apk that need to be extraced into the app's tree
+    static native void extract_files();
+
+/*
+    // Wrapper for getpid()
+    public static native int getpid();
+
+    // Wrapper for system()
+    public static native void system(String cmdline);
+*/
+    // Wrapper for putenv()
+    public static native void putenv(String string);
+/*
+    // A wrapper for InitVCL() in libvcl (svmain.cxx), called indirectly
+    // through the lo-bootstrap library
+    public static native void initVCL();
+
+    // A wrapper for osl_setCommandArgs(). Before calling
+    // osl_setCommandArgs(), argv[0] is prefixed with the parent directory of
+    // where the lo-bootstrap library is.
+    public static native void setCommandArgs(String[] argv);
+*/
+    // A method that starts a thread to redirect stdout and stderr writes to
+    // the Android logging mechanism, or stops the redirection.
+    public static native boolean redirect_stdio(boolean state);
+/*
+    // The DIB returned by css.awt.XBitmap.getDIB is in BGR_888 form, at least
+    // for Writer documents. We need it in Android's Bitmap.Config.ARGB_888
+    // format, which actually is RGBA_888, whee... At least in Android 4.0.3,
+    // at least on my device. No idea if it is always like that or not, the
+    // documentation sucks.
+    public static native void twiddle_BGR_to_RGBA(byte[] source, int offset, int width, int height, ByteBuffer destination);
+
+    public static native void force_full_alpha_array(byte[] array, int offset, int length);
+
+    public static native void force_full_alpha_bb(ByteBuffer buffer, int offset, int length);
+
+    public static native long new_byte_buffer_wrapper(ByteBuffer bbuffer);
+
+    public static native void delete_byte_buffer_wrapper(long bbw);
+*/
+
+    static boolean init_done = false;
+
+    // This init() method should be called from the upper Java level of
+    // LO-based apps.
+    public static synchronized void init(Activity activity)
+    {
+        if (init_done)
+            return;
+
+        String dataDir = null;
+
+        ApplicationInfo ai = activity.getApplicationInfo();
+        dataDir = ai.dataDir;
+        Log.i(TAG, String.format("dataDir=%s\n", dataDir));
+
+        redirect_stdio(true);
+
+        if (!init(dataDir,
+                  activity.getApplication().getCacheDir().getAbsolutePath(),
+                  activity.getApplication().getPackageResourcePath()))
+            return;
+
+        // Extract files from the .apk that can't be used mmapped directly from it
+        extract_files();
+
+        // If we notice that a fonts.conf file was extracted, automatically
+        // set the FONTCONFIG_FILE env var.
+        InputStream i;
+        try {
+            i = activity.getAssets().open("unpack/etc/fonts/fonts.conf");
+        }
+        catch (java.io.IOException e) {
+            i = null;
+        }
+        putenv("OOO_DISABLE_RECOVERY=1");
+        if (i != null)
+            putenv("FONTCONFIG_FILE=" + dataDir + "/etc/fonts/fonts.conf");
+
+        // TMPDIR is used by osl_getTempDirURL()
+        putenv("TMPDIR=" + activity.getCacheDir().getAbsolutePath());
+
+        init_done = true;
+    }
+
+    // Now with static loading we always have all native code in one native
+    // library which we always call liblo-native-code.so, regardless of the
+    // app. The library has already been unpacked into /data/data/<app
+    // name>/lib at installation time by the package manager.
+    static {
+        System.loadLibrary("lo-native-code");
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */