android/source/src/java/org/libreoffice/ui/FileUtilities.java

   1 /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9 package org.libreoffice.ui;
  10
  11 import java.util.Map;
  12 import java.util.HashMap;
  13
  14 import android.content.ContentResolver;
  15 import android.database.Cursor;
  16 import android.net.Uri;
  17 import android.provider.OpenableColumns;
  18 import android.util.Log;
  19
  20 public class FileUtilities {
  21
  22     private static final String LOGTAG = FileUtilities.class.getSimpleName();
  23
  24     // These have to be in sync with the file_view_modes resource.
  25     static final int DOC = 0;
  26     static final int CALC = 1;
  27     static final int IMPRESS = 2;
  28     static final int DRAWING = 3;
  29
  30     static final int UNKNOWN = 10;
  31
  32     public static final String MIMETYPE_OPENDOCUMENT_TEXT = "application/vnd.oasis.opendocument.text";
  33     public static final String MIMETYPE_OPENDOCUMENT_SPREADSHEET = "application/vnd.oasis.opendocument.spreadsheet";
  34     public static final String MIMETYPE_OPENDOCUMENT_PRESENTATION = "application/vnd.oasis.opendocument.presentation";
  35     public static final String MIMETYPE_OPENDOCUMENT_GRAPHICS = "application/vnd.oasis.opendocument.graphics";
  36     public static final String MIMETYPE_PDF = "application/pdf";
  37
  38     private static final Map<String, Integer> mExtnMap = new HashMap<String, Integer>();
  39     static {
  40         // Please keep this in sync with AndroidManifest.xml
  41         // and 'SUPPORTED_MIME_TYPES' in LibreOfficeUIActivity.java
  42
  43         // ODF
  44         mExtnMap.put(".odt", DOC);
  45         mExtnMap.put(".odg", DRAWING);
  46         mExtnMap.put(".odp",  IMPRESS);
  47         mExtnMap.put(".ods",  CALC);
  48         mExtnMap.put(".fodt", DOC);
  49         mExtnMap.put(".fodg", DRAWING);
  50         mExtnMap.put(".fodp",  IMPRESS);
  51         mExtnMap.put(".fods",  CALC);
  52
  53         // ODF templates
  54         mExtnMap.put(".ott", DOC);
  55         mExtnMap.put(".otg", DRAWING);
  56         mExtnMap.put(".otp",  IMPRESS);
  57         mExtnMap.put(".ots",  CALC);
  58
  59         // MS
  60         mExtnMap.put(".rtf",  DOC);
  61         mExtnMap.put(".doc",  DOC);
  62         mExtnMap.put(".vsd", DRAWING);
  63         mExtnMap.put(".vsdx", DRAWING);
  64         mExtnMap.put(".pub", DRAWING);
  65         mExtnMap.put(".ppt",  IMPRESS);
  66         mExtnMap.put(".pps",  IMPRESS);
  67         mExtnMap.put(".xls",  CALC);
  68
  69         // MS templates
  70         mExtnMap.put(".dot",  DOC);
  71         mExtnMap.put(".pot",  IMPRESS);
  72         mExtnMap.put(".xlt",  CALC);
  73         mExtnMap.put(".vstx", DRAWING);
  74
  75         // OOXML
  76         mExtnMap.put(".docx", DOC);
  77         mExtnMap.put(".pptx", IMPRESS);
  78         mExtnMap.put(".ppsx", IMPRESS);
  79         mExtnMap.put(".xlsx", CALC);
  80
  81         // OOXML templates
  82         mExtnMap.put(".dotx", DOC);
  83         mExtnMap.put(".potx", IMPRESS);
  84         mExtnMap.put(".xltx", CALC);
  85
  86         // Other
  87         mExtnMap.put(".csv",  CALC);
  88         mExtnMap.put(".wps",  DOC);
  89         mExtnMap.put(".key",  IMPRESS);
  90         mExtnMap.put(".abw",  DOC);
  91         mExtnMap.put(".pmd",  DRAWING);
  92         mExtnMap.put(".emf",  DRAWING);
  93         mExtnMap.put(".svm",  DRAWING);
  94         mExtnMap.put(".wmf",  DRAWING);
  95         mExtnMap.put(".svg",  DRAWING);
  96     }
  97
  98     public static String getExtension(String filename) {
  99         if (filename == null)
 100             return "";
 101         int nExt = filename.lastIndexOf('.');
 102         if (nExt < 0)
 103             return "";
 104         return filename.substring(nExt);
 105     }
 106
 107     private static int lookupExtension(String filename) {
 108         String extn = getExtension(filename);
 109         if (!mExtnMap.containsKey(extn))
 110             return UNKNOWN;
 111         return mExtnMap.get(extn);
 112     }
 113
 114     static int getType(String filename) {
 115         int type = lookupExtension (filename);
 116         Log.d(LOGTAG, "extn : " + filename + " -> " + type);
 117         return type;
 118     }
 119
 120     /**
 121      * Returns whether the passed MIME type is one for a document template.
 122      */
 123     public static boolean isTemplateMimeType(final String mimeType) {
 124         // this works for ODF and OOXML template MIME types
 125         return mimeType != null && mimeType.endsWith("template");
 126     }
 127
 128     public static String stripExtensionFromFileName(final String fileName)
 129     {
 130         return fileName.split("\\.[A-Za-z0-9]*$")[0];
 131     }
 132
 133     /**
 134      * Tries to retrieve the display (which should be the document name)
 135      * for the given URI using the given resolver.
 136      */
 137     public static String retrieveDisplayNameForDocumentUri(ContentResolver resolver, Uri docUri) {
 138         String displayName = "";
 139         // try to retrieve original file name
 140         Cursor cursor = null;
 141         try {
 142             String[] columns = {OpenableColumns.DISPLAY_NAME};
 143             cursor = resolver.query(docUri, columns, null, null, null);
 144             if (cursor != null && cursor.moveToFirst()) {
 145                 displayName = cursor.getString(cursor.getColumnIndexOrThrow(OpenableColumns.DISPLAY_NAME));
 146             }
 147         } catch (SecurityException e) {
 148             // thrown e.g. when Uri has become invalid, e.g. corresponding file has been deleted
 149             Log.i(LOGTAG, "SecurityException when trying to receive display name for Uri " + docUri);
 150         } finally {
 151             if (cursor != null) {
 152                 cursor.close();
 153             }
 154         }
 155         return displayName;
 156     }
 157 }
 158
 159 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */