OC-2868: Fix bug: Unshare a file that does not exist any more, no message is shown

res/values/strings.xml

@@ -250,5 +250,6 @@
 	<string name="share_link_no_support_share_api">Sorry, sharing is not enabled on your server. Please contact your administrator.</string>
 	<string name="share_link_file_no_exist">Unable to share this file or folder. Please, make sure it exists</string>
 	<string name="share_link_file_error">An error occurred while trying to share this file or folder</string>
+	<string name="unshare_link_file_no_exist">Unable to unshare this file or folder. It does not exist.</string>
 	<string name="unshare_link_file_error">An error occurred while trying to unshare this file or folder</string>
 </resources>

src/com/owncloud/android/files/FileOperationsHelper.java

@@ -146,7 +146,7 @@ public class FileOperationsHelper {
         
         if (isSharedSupported(callerActivity)) {
             // Unshare the file
-            UnshareLinkOperation unshare = new UnshareLinkOperation(file);
+            UnshareLinkOperation unshare = new UnshareLinkOperation(file, callerActivity);
             unshare.execute(callerActivity.getStorageManager(), 
                     callerActivity, 
                     callerActivity.getRemoteOperationListener(), 

src/com/owncloud/android/operations/UnshareLinkOperation.java

@@ -17,11 +17,14 @@
 
 package com.owncloud.android.operations;
 
+import android.content.Context;
+
 import com.owncloud.android.datamodel.OCFile;
 import com.owncloud.android.lib.network.OwnCloudClient;
 import com.owncloud.android.lib.operations.common.OCShare;
 import com.owncloud.android.lib.operations.common.RemoteOperationResult;
 import com.owncloud.android.lib.operations.common.RemoteOperationResult.ResultCode;
+import com.owncloud.android.lib.operations.remote.ExistenceCheckRemoteOperation;
 import com.owncloud.android.lib.operations.remote.RemoveRemoteShareOperation;
 import com.owncloud.android.operations.common.SyncOperation;
 import com.owncloud.android.utils.Log_OC;
@@ -37,9 +40,12 @@ public class UnshareLinkOperation extends SyncOperation {
     private static final String TAG = UnshareLinkOperation.class.getSimpleName();
     
     private OCFile mFile;
+    private Context mContext;
+    
     
-    public UnshareLinkOperation(OCFile file) {
+    public UnshareLinkOperation(OCFile file, Context context) {
         mFile = file;
+        mContext = context;
     }
 
     @Override
@@ -66,7 +72,11 @@ public class UnshareLinkOperation extends SyncOperation {
                 getStorageManager().removeShare(share);
                 
                 if (result.getCode() == ResultCode.SHARE_NOT_FOUND) {
-                    result = new RemoteOperationResult(ResultCode.OK);
+                    if (existsFile(client, mFile.getRemotePath())) {
+                        result = new RemoteOperationResult(ResultCode.OK);
+                    } else {
+                        getStorageManager().removeFile(mFile, true, true);
+                    }
                 }
             } 
                 
@@ -76,5 +86,11 @@ public class UnshareLinkOperation extends SyncOperation {
 
         return result;
     }
+    
+    private boolean existsFile(OwnCloudClient client, String remotePath){
+        ExistenceCheckRemoteOperation existsOperation = new ExistenceCheckRemoteOperation(remotePath, mContext, false);
+        RemoteOperationResult result = existsOperation.execute(client);
+        return result.isSuccess();
+    }
 
 }

src/com/owncloud/android/ui/activity/FileActivity.java

@@ -381,7 +381,10 @@ public class FileActivity extends SherlockFragmentActivity implements OnRemoteOp
     private void onUnshareLinkOperationFinish(UnshareLinkOperation operation, RemoteOperationResult result) {
         dismissLoadingDialog();
         
-        if (!result.isSuccess()){    // Generic error
+        if (result.getCode() == ResultCode.SHARE_NOT_FOUND)  {        // Error --> SHARE_NOT_FOUND
+            Toast t = Toast.makeText(this, getString(R.string.unshare_link_file_no_exist), Toast.LENGTH_LONG);
+            t.show();
+        } else if (!result.isSuccess()){    // Generic error
             // Show a Message, operation finished without success
             Toast t = Toast.makeText(this, getString(R.string.unshare_link_file_error), Toast.LENGTH_LONG);
             t.show();

src/com/owncloud/android/ui/activity/FileDisplayActivity.java

@@ -1350,7 +1350,7 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
 
     
     private void onUnshareLinkOperationFinish(UnshareLinkOperation operation, RemoteOperationResult result) {
-        if (result.isSuccess()) {
+        if (result.isSuccess() || result.getCode() == ResultCode.SHARE_NOT_FOUND) {
             refreshShowDetails();
             refeshListOfFilesFragment();
         }