android: Show original instead of temp file name

When a temporary file is created in Android Viewer
(e.g. when a file is passed from another app, like
a file explorer or an email app), still show the
original file name in the toolbar, instead of the
name of the temporary file (like
"LibreOffice1588848072959345750.tmp").

Change-Id: I86f5cebfa8e2986fe812ace16c0df324d1420955
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112643
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
(cherry picked from commit a7c0039542fb015e34c56ec25f92f59a4c6ba1fa)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112621
Tested-by: Michael Weghorn <m.weghorn@posteo.de>

1 files changed, 31 insertions, 1 deletions

diff --git a/android/source/src/java/org/libreoffice/LibreOfficeMainActivity.java b/android/source/src/java/org/libreoffice/LibreOfficeMainActivity.java
index cbc628e94e48..a9a192099008 100644
--- a/android/source/src/java/org/libreoffice/LibreOfficeMainActivity.java
+++ b/android/source/src/java/org/libreoffice/LibreOfficeMainActivity.java
@@ -11,12 +11,14 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.AssetFileDescriptor;
 import android.content.res.AssetManager;
+import android.database.Cursor;
 import android.graphics.RectF;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.provider.OpenableColumns;
 import android.support.design.widget.BottomSheetBehavior;
 import android.support.design.widget.Snackbar;
 import android.support.v4.widget.DrawerLayout;
@@ -192,7 +194,13 @@ public class LibreOfficeMainActivity extends AppCompatActivity implements Settin
                 if (copyFileToTemp() && mTempFile != null) {
                     mInputFile = mTempFile;
                     Log.d(LOGTAG, "SCHEME_CONTENT: getPath(): " + getIntent().getData().getPath());
-                    toolbarTop.setTitle(mInputFile.getName());
+
+                    String displayName = extractDisplayNameFromIntent();
+                    if (displayName.isEmpty()) {
+                        // fall back to using temp file name
+                        displayName = mInputFile.getName();
+                    }
+                    toolbarTop.setTitle(displayName);
                 } else {
                     // TODO: can't open the file
                     Log.e(LOGTAG, "couldn't create temporary file from " + getIntent().getData());
@@ -490,6 +498,28 @@ public class LibreOfficeMainActivity extends AppCompatActivity implements Settin
 
     }
 
+    /**
+     * Tries to retrieve display name for data in Intent,
+     * which should be the file name.
+     */
+    private String extractDisplayNameFromIntent() {
+        String displayName = "";
+        // try to retrieve original file name
+        Cursor cursor = null;
+        try {
+            String[] columns = {OpenableColumns.DISPLAY_NAME};
+            cursor = getContentResolver().query(getIntent().getData(), columns, null, null);
+            if (cursor != null && cursor.moveToFirst()) {
+                displayName = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
+            }
+        } finally {
+            if (cursor != null) {
+                cursor.close();
+            }
+        }
+        return displayName;
+    }
+
     public List<DocumentPartView> getDocumentPartView() {
         return mDocumentPartView;
     }