- fix not clickable rich workspace area

- fix crash on first loading

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

scripts/analysis/findbugs-results.txt

@@ -1 +1 @@
-413
+414

src/main/java/com/owncloud/android/ui/adapter/OCFileListAdapter.java

@@ -329,7 +329,7 @@ public class OCFileListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHol
             OCFileListHeaderViewHolder headerViewHolder = (OCFileListHeaderViewHolder) holder;
             String text = currentDirectory.getRichWorkspace();
 
-            PreviewTextFragment.setText(headerViewHolder.headerText, text, getItem(position), activity);
+            PreviewTextFragment.setText(headerViewHolder.headerText, text, null, activity, true, true);
             headerViewHolder.headerView.setOnClickListener(v -> ocFileListFragmentInterface.onHeaderClicked());
         } else {
             OCFileListGridImageViewHolder gridViewHolder = (OCFileListGridImageViewHolder) holder;

src/main/java/com/owncloud/android/ui/preview/PreviewTextFragment.java

@@ -55,6 +55,7 @@ import com.owncloud.android.utils.ThemeUtils;
 import javax.inject.Inject;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.widget.SearchView;
 import io.noties.markwon.AbstractMarkwonPlugin;
 import io.noties.markwon.Markwon;
@@ -226,14 +227,22 @@ public abstract class PreviewTextFragment extends FileFragment implements Search
     }
 
     public static void setText(TextView textView, String text, OCFile file, Activity activity) {
-        setText(textView, text, file, activity, false);
+        setText(textView, text, file, activity, false, false);
     }
 
-    public static void setText(TextView textView, String text, OCFile file, Activity activity, boolean ignoreMimetype) {
-        if ((MimeTypeUtil.MIMETYPE_TEXT_MARKDOWN.equals(file.getMimeType()) || ignoreMimetype) &&
+    public static void setText(TextView textView,
+                               String text,
+                               @Nullable OCFile file,
+                               Activity activity,
+                               boolean ignoreMimetype,
+                               boolean preview) {
+        if ((ignoreMimetype || file != null && MimeTypeUtil.MIMETYPE_TEXT_MARKDOWN.equals(file.getMimeType())) &&
             android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN
             && activity != null) {
-            textView.setMovementMethod(LinkMovementMethod.getInstance());
+            if (!preview) {
+                // clickable links prevent to open full view of rich workspace
+                textView.setMovementMethod(LinkMovementMethod.getInstance());
+            }
             textView.setText(getRenderedMarkdownText(activity, text));
         } else {
             textView.setText(text);

src/main/java/com/owncloud/android/ui/preview/PreviewTextStringFragment.java

@@ -145,7 +145,7 @@ public class PreviewTextStringFragment extends PreviewTextFragment {
     void loadAndShowTextPreview() {
         if (mTextPreview != null) {
             mOriginalText = getFile().getRichWorkspace();
-            setText(mTextPreview, mOriginalText, getFile(), requireActivity(), true);
+            setText(mTextPreview, mOriginalText, getFile(), requireActivity(), true, false);
             mTextPreview.setVisibility(View.VISIBLE);
         }