OC-2880: Fix bug: In the detail view, changing the orientation of the device and unsharing, menu is not refreshing

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

@@ -188,6 +188,11 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
         mRightFragmentContainer = findViewById(R.id.right_fragment_container);
         if (savedInstanceState == null) {
             createMinFragments();
+        } else {
+            Log_OC.d(TAG, "Init the secondFragment again");
+            if (mDualPane) {
+                initFragmentsWithFile();                
+            }
         }
 
         // Action bar setup
@@ -280,7 +285,7 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
         transaction.add(R.id.left_fragment_container, listOfFiles, TAG_LIST_OF_FILES);
         transaction.commit();
     }
-
+    
     private void initFragmentsWithFile() {
         if (getAccount() != null && getFile() != null) {
             /// First fragment
@@ -1343,6 +1348,10 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
     
     private void onCreateShareOperationFinish(CreateShareOperation operation, RemoteOperationResult result) {
         if (result.isSuccess()) {
+            OCFile file = getStorageManager().getFileByPath(getFile().getRemotePath());
+            if (file != null) {
+                setFile(file);
+            }
             refreshShowDetails();
             refeshListOfFilesFragment();
         }
@@ -1351,6 +1360,10 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
     
     private void onUnshareLinkOperationFinish(UnshareLinkOperation operation, RemoteOperationResult result) {
         if (result.isSuccess()) {
+            OCFile file = getStorageManager().getFileByPath(getFile().getRemotePath());
+            if (file != null) {
+                setFile(file);
+            }
             refreshShowDetails();
             refeshListOfFilesFragment();
         } else if (result.getCode() == ResultCode.SHARE_NOT_FOUND) {

src/com/owncloud/android/ui/fragment/FileDetailFragment.java

@@ -186,6 +186,10 @@ public class FileDetailFragment extends FileFragment implements
         super.onActivityCreated(savedInstanceState);
         if (mAccount != null) {
             mStorageManager = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
+            OCFile file = mStorageManager.getFileByPath(getFile().getRemotePath());
+            if (file != null) {
+                setFile(file);
+            }
         }
     }
         
@@ -314,6 +318,8 @@ public class FileDetailFragment extends FileFragment implements
         // Options shareLink
         if (!file.isShareByLink()) {
             toHide.add(R.id.action_unshare_file);
+        } else {
+            toShow.add(R.id.action_unshare_file);
         }
         
         MenuItem item = null;

src/com/owncloud/android/ui/preview/PreviewImageFragment.java

@@ -253,12 +253,6 @@ public class PreviewImageFragment extends FileFragment implements   OnRemoteOper
     public void onPrepareOptionsMenu(Menu menu) {
         super.onPrepareOptionsMenu(menu);
         
-        // Trick to update the file
-        OCFile file = ((PreviewImageActivity) getActivity()).getStorageManager().getFileByPath(getFile().getRemotePath()); 
-        if (file!= null) {
-            setFile(file);
-        }
-        
         MenuItem item = menu.findItem(R.id.action_unshare_file);
         // Options shareLink
         if (!getFile().isShareByLink()) {            

src/com/owncloud/android/ui/preview/PreviewMediaFragment.java

@@ -313,11 +313,14 @@ public class PreviewMediaFragment extends FileFragment implements
     public void onPrepareOptionsMenu(Menu menu) {
         super.onPrepareOptionsMenu(menu);
         
+        MenuItem item = menu.findItem(R.id.action_unshare_file);
         // Options shareLink
-        if (!getFile().isShareByLink()) {
-            MenuItem item = menu.findItem(R.id.action_unshare_file);
+        if (!getFile().isShareByLink()) {            
             item.setVisible(false);
             item.setEnabled(false);
+        } else {
+            item.setVisible(true);
+            item.setEnabled(true);
         }
     }