1 files changed, 17 insertions, 21 deletions

diff --git a/app/src/main/java/it/niedermann/nextcloud/deck/util/MimeTypeUtil.java b/app/src/main/java/it/niedermann/nextcloud/deck/util/MimeTypeUtil.java
index bdbb08a63..0390bf96d 100644
--- a/app/src/main/java/it/niedermann/nextcloud/deck/util/MimeTypeUtil.java
+++ b/app/src/main/java/it/niedermann/nextcloud/deck/util/MimeTypeUtil.java
@@ -1,45 +1,41 @@
 package it.niedermann.nextcloud.deck.util;
 
+import androidx.annotation.Nullable;
+
 import java.util.Locale;
 
 public class MimeTypeUtil {
 
     public static final String TEXT_PLAIN = "text/plain";
+    public static final String TEXT_VCARD = "text/vcard";
     public static final String APPLICATION_PDF = "application/pdf";
 
-    /**
-     * @return 'True' if the mime type defines image
-     */
-    public static boolean isImage(String mimeType) {
+    public static boolean isImage(@Nullable String mimeType) {
         return mimeType != null && mimeType.toLowerCase(Locale.ROOT).startsWith("image/") &&
                 !mimeType.toLowerCase(Locale.ROOT).contains("djvu");
     }
 
-    /**
-     * @return 'True' the mime type defines video
-     */
-    public static boolean isVideo(String mimeType) {
+    public static boolean isVideo(@Nullable String mimeType) {
         return mimeType != null && mimeType.toLowerCase(Locale.ROOT).startsWith("video/");
     }
 
-    /**
-     * @return 'True' the mime type defines audio
-     */
-    public static boolean isAudio(String mimeType) {
+    public static boolean isAudio(@Nullable String mimeType) {
         return mimeType != null && mimeType.toLowerCase(Locale.ROOT).startsWith("audio/");
     }
 
-    /**
-     * @return 'True' if mime type defines text
-     */
-    public static boolean isText(String mimeType) {
+    public static boolean isText(@Nullable String mimeType) {
         return mimeType != null && mimeType.toLowerCase(Locale.ROOT).startsWith("text/");
     }
 
-    /**
-     * @return 'True' if mime type defines pdf
-     */
-    public static boolean isPdf(String mimeType) {
-        return APPLICATION_PDF.equals(mimeType.toLowerCase(Locale.ROOT));
+    public static boolean isTextPlain(@Nullable String mimeType) {
+        return mimeType != null && mimeType.toLowerCase(Locale.ROOT).startsWith(TEXT_PLAIN);
+    }
+
+    public static boolean isContact(@Nullable String mimeType) {
+        return mimeType != null && mimeType.toLowerCase(Locale.ROOT).startsWith(TEXT_VCARD);
+    }
+
+    public static boolean isPdf(@Nullable String mimeType) {
+        return mimeType != null && mimeType.toLowerCase(Locale.ROOT).startsWith(APPLICATION_PDF);
     }
 }