no need for IPC on Android, removes the need for the cache-hack

removing the cache on each launch prevented opening files via intents
(i.e. from your mail application) unless the viewer was already running,
as it also deleted the temporary file that was created from the intent.

Change-Id: I0a4d9432f475e8434902ae11fc2b0c35fd25a71f

android/Bootstrap/src/org/libreoffice/kit/LibreOfficeKit.java

@@ -64,8 +64,7 @@ public final class LibreOfficeKit
         Log.i(LOGTAG, String.format("Initializing LibreOfficeKit, dataDir=%s\n", dataDir));
 
         redirectStdio(true);
-        // ToDo: ugly workaround - find out why it segfaults with existing cachedir
+
-        deleteRecursive(activity.getApplication().getCacheDir());
         String cacheDir = activity.getApplication().getCacheDir().getAbsolutePath();
         String apkFile = activity.getApplication().getPackageResourcePath();
 
@@ -93,20 +92,6 @@ public final class LibreOfficeKit
         }
         initializeDone = true;
     }
-    /**
-     * Deletes files and recursively deletes directories.
-     *
-     * @param file
-     *            File or directory to be deleted.
-     */
-    private static void deleteRecursive(File file) {
-        Log.d(LOGTAG, "deleting cacheDir recursively - this is only a workaround - fixme please");
-        if (file.isDirectory()) {
-            for (File child : file.listFiles())
-                deleteRecursive(child);
-        }
-        file.delete();
-    }
 
     // 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

desktop/source/app/officeipcthread.cxx

@@ -54,7 +54,7 @@ using namespace ::com::sun::star::frame;
 
 namespace {
 
-#if HAVE_FEATURE_DESKTOP || defined(ANDROID)
+#if HAVE_FEATURE_DESKTOP
 
 static char const ARGUMENT_PREFIX[] = "InternalIPC::Arguments";
 static char const SEND_ARGUMENTS[] = "InternalIPC::SendArguments";
@@ -101,7 +101,7 @@ namespace desktop
 
 namespace {
 
-#if HAVE_FEATURE_DESKTOP || defined(ANDROID)
+#if HAVE_FEATURE_DESKTOP
 
 class Parser: public CommandLineArgs::Supplier {
 public:
@@ -435,7 +435,7 @@ OfficeIPCThread::Status OfficeIPCThread::EnableOfficeIPCThread()
     if( pGlobalOfficeIPCThread.is() )
         return IPC_STATUS_OK;
 
-#if HAVE_FEATURE_DESKTOP || defined(ANDROID)
+#if HAVE_FEATURE_DESKTOP
     OUString aUserInstallPath;
     OUString aDummy;
 
@@ -443,8 +443,6 @@ OfficeIPCThread::Status OfficeIPCThread::EnableOfficeIPCThread()
 
     PipeMode nPipeMode = PIPEMODE_DONTKNOW;
 
-#ifndef ANDROID // On Android it might be that we still for some reason need the pipe?
-
     // In LibreOfficeKit-based programs we want to be totally independent from any other LibreOffice
     // instance or LOKit-using program. Certainly no need for any IPC pipes by definition, as we
     // don't have any reason to do any IPC. Why we even call this EnableOfficeIPCThread function
@@ -459,7 +457,6 @@ OfficeIPCThread::Status OfficeIPCThread::EnableOfficeIPCThread()
         nPipeMode = PIPEMODE_CREATED;
     }
     else
-#endif
     {
         // The name of the named pipe is created with the hashcode of the user installation directory (without /user). We have to retrieve
         // this information from a unotools implementation.
@@ -685,12 +682,10 @@ bool OfficeIPCThread::IsEnabled()
 
 void OfficeIPCThread::execute()
 {
-#if HAVE_FEATURE_DESKTOP || defined(ANDROID)
+#if HAVE_FEATURE_DESKTOP
 
-#ifndef ANDROID
     if (comphelper::LibreOfficeKit::isActive())
         return;
-#endif
 
     do
     {