handled more error cases

src/main/java/eu/siacs/conversations/ui/ConversationFragment.java

@@ -44,6 +44,7 @@ import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
 import eu.siacs.conversations.entities.Downloadable;
+import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.entities.DownloadablePlaceholder;
 import eu.siacs.conversations.entities.Message;
 import eu.siacs.conversations.entities.MucOptions;
@@ -421,6 +422,14 @@ public class ConversationFragment extends Fragment {
 	}
 
 	private void resendMessage(Message message) {
+		if (message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) {
+			DownloadableFile file = activity.xmppConnectionService.getFileBackend().getFile(message);
+			if (!file.exists()) {
+				Toast.makeText(activity,R.string.file_deleted,Toast.LENGTH_SHORT).show();
+				message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
+				return;
+			}
+		}
 		activity.xmppConnectionService.resendFailedMessages(message);
 	}
 

src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java

@@ -1,6 +1,8 @@
 package eu.siacs.conversations.ui.adapter;
 
 import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
 import android.graphics.Typeface;
 import android.net.Uri;
 import android.text.Spannable;
@@ -495,7 +497,11 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 			} else if (d.getStatus() == Downloadable.STATUS_CHECKING) {
 				displayInfoMessage(viewHolder,activity.getString(R.string.checking_image));
 			} else if (d.getStatus() == Downloadable.STATUS_DELETED) {
-				displayInfoMessage(viewHolder,activity.getString(R.string.image_file_deleted));
+				if (item.getType() == Message.TYPE_FILE) {
+					displayInfoMessage(viewHolder, activity.getString(R.string.file_deleted));
+				} else {
+					displayInfoMessage(viewHolder, activity.getString(R.string.image_file_deleted));
+				}
 			} else if (d.getStatus() == Downloadable.STATUS_OFFER) {
 				if (item.getType() == Message.TYPE_FILE) {
 					displayDownloadableMessage(viewHolder,item,activity.getString(R.string.download_file,d.getMimeType()));
@@ -558,10 +564,19 @@ public class MessageAdapter extends ArrayAdapter<Message> {
 	}
 
 	public void openDonwloadable(DownloadableFile file) {
-		Log.d(Config.LOGTAG,"file "+file.getAbsolutePath());
+		if (!file.exists()) {
-		Intent intent = new Intent(Intent.ACTION_VIEW);
+			Toast.makeText(activity,R.string.file_deleted,Toast.LENGTH_SHORT).show();
-		intent.setDataAndType(Uri.fromFile(file), file.getMimeType());
+			return;
-		getContext().startActivity(intent);
+		}
+		Intent openIntent = new Intent(Intent.ACTION_VIEW);
+		openIntent.setDataAndType(Uri.fromFile(file), file.getMimeType());
+		PackageManager manager = activity.getPackageManager();
+		List<ResolveInfo> infos = manager.queryIntentActivities(openIntent, 0);
+		if (infos.size() > 0) {
+			getContext().startActivity(openIntent);
+		} else {
+			Toast.makeText(activity,R.string.no_application_found_to_open_file,Toast.LENGTH_SHORT).show();
+		}
 	}
 
 	public interface OnContactPictureClicked {

src/main/res/values/strings.xml

@@ -322,4 +322,5 @@
     <string name="cancel_transmission">Cancel transmission</string>
     <string name="file_transmission_failed">file transmission failed</string>
     <string name="file_deleted">The file has been deleted</string>
+    <string name="no_application_found_to_open_file">No application found to open file</string>
 </resources>