Check status before nominating for deletion

app/src/main/java/fr/free/nrw/commons/delete/DeleteTask.java

@@ -1,10 +1,10 @@
 package fr.free.nrw.commons.delete;
 
+import android.app.AlertDialog;
 import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
 import android.os.AsyncTask;
-import android.widget.Button;
-import android.widget.Toast;
-
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Locale;
@@ -12,14 +12,19 @@ import java.util.Locale;
 import javax.inject.Inject;
 
 import fr.free.nrw.commons.Media;
+import fr.free.nrw.commons.R;
 import fr.free.nrw.commons.auth.SessionManager;
 import fr.free.nrw.commons.di.ApplicationlessInjection;
 import fr.free.nrw.commons.mwapi.MediaWikiApi;
 import timber.log.Timber;
 
-import static android.view.View.GONE;
+import static android.support.v4.content.ContextCompat.startActivity;
 
-public class DeleteTask extends AsyncTask<Void, Void, Boolean> {
+public class DeleteTask extends AsyncTask<Void, Void, Integer> {
+
+    private static final int SUCCESS = 0;
+    private static final int FAILED = -1;
+    private static final int ALREADY_DELETED = -2;
 
     @Inject MediaWikiApi mwApi;
     @Inject SessionManager sessionManager;
@@ -43,7 +48,7 @@ public class DeleteTask extends AsyncTask<Void, Void, Boolean> {
     }
 
     @Override
-    protected Boolean doInBackground(Void ...voids) {
+    protected Integer doInBackground(Void ...voids) {
         String editToken;
         String authCookie;
         String summary = "Nominating " + media.getFilename() +" for deletion.";
@@ -51,15 +56,25 @@ public class DeleteTask extends AsyncTask<Void, Void, Boolean> {
         authCookie = sessionManager.getAuthCookie();
         mwApi.setAuthCookie(authCookie);
 
+        try{
+            if (mwApi.pageExists("Commons:Deletion_requests/"+media.getFilename())){
+                return ALREADY_DELETED;
+            }
+        }
+        catch (Exception e) {
+            Timber.d(e.getMessage());
+            return FAILED;
+        }
+
         try {
             editToken = mwApi.getEditToken();
         }
         catch (Exception e){
             Timber.d(e.getMessage());
-            return false;
+            return FAILED;
         }
         if (editToken.equals("+\\")) {
-            return false;
+            return FAILED;
         }
 
         Calendar calendar = Calendar.getInstance();
@@ -75,7 +90,7 @@ public class DeleteTask extends AsyncTask<Void, Void, Boolean> {
         }
         catch (Exception e) {
             Timber.d(e.getMessage());
-            return false;
+            return FAILED;
         }
 
         String subpageString = "=== [[:" + media.getFilename() + "]] ===\n" +
@@ -83,11 +98,11 @@ public class DeleteTask extends AsyncTask<Void, Void, Boolean> {
                 " ~~~~";
         try{
             mwApi.edit(editToken,subpageString+"\n",
-                    "Commons:Deletion requests/"+media.getFilename(),summary);
+                    "Commons:Deletion_requests/"+media.getFilename(),summary);
         }
         catch (Exception e) {
             Timber.d(e.getMessage());
-            return false;
+            return FAILED;
         }
 
         String logPageString = "\n{{Commons:Deletion requests/" + media.getFilename() +
@@ -96,11 +111,11 @@ public class DeleteTask extends AsyncTask<Void, Void, Boolean> {
         String date = sdf.format(calendar.getTime());
         try{
             mwApi.appendEdit(editToken,logPageString+"\n",
-                    "Commons:Deletion requests/"+date,summary);
+                    "Commons:Deletion_requests/"+date,summary);
         }
         catch (Exception e) {
             Timber.d(e.getMessage());
-            return false;
+            return FAILED;
         }
 
         String userPageString = "\n{{subst:idw|" + media.getFilename() +
@@ -111,20 +126,49 @@ public class DeleteTask extends AsyncTask<Void, Void, Boolean> {
         }
         catch (Exception e) {
             Timber.d(e.getMessage());
-            return false;
+            return FAILED;
         }
-        return true;
+        return SUCCESS;
     }
 
     @Override
-    protected void onPostExecute(Boolean result) {
+    protected void onPostExecute(Integer result) {
-        String toastText = "";
+        String message = "";
-        if (result) {
+        String title = "";
-            toastText = "Successfully requested deletion.";
+        switch (result){
+            case SUCCESS:
+                title = "Success";
+                message = "Successfully nominated " + media.getDisplayTitle() + " deletion.\n" +
+                        "Check the webpage for more details";
+                break;
+            case FAILED:
+                title = "Failed";
+                message = "Could not request deletion. Something went wrong.";
+                break;
+            case ALREADY_DELETED:
+                title = "Already Nominated";
+                message = media.getDisplayTitle() + " has already been nominated for deletion.\n" +
+                        "Check the webpage for more details";
+                break;
         }
-        else{
+        AlertDialog alert;
-            toastText = "Could not request deletion.";
+        AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        builder.setTitle(title);
+        builder.setMessage(message);
+        builder.setCancelable(true);
+        builder.setPositiveButton(
+                R.string.ok,
+                new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {}
+                });
+        builder.setNeutralButton(R.string.view_browser,
+                new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {
+                        Intent browserIntent = new Intent(Intent.ACTION_VIEW, media.getFilePageTitle().getMobileUri());
+                        startActivity(context,browserIntent,null);
                     }
-        Toast.makeText(context, toastText, Toast.LENGTH_SHORT).show();
+                });
+        alert = builder.create();
+        alert.show();
     }
 }

app/src/main/java/fr/free/nrw/commons/media/MediaDetailFragment.java

@@ -15,6 +15,7 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewTreeObserver;
+import android.view.WindowManager;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.LinearLayout;
@@ -298,18 +299,11 @@ public class MediaDetailFragment extends CommonsDaggerSupportFragment {
         }
         if (delete.getVisibility()==View.VISIBLE){
             delete.setOnClickListener(v -> {
-                AlertDialog alert;
-                AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
-                builder.setMessage("Sure you want to delete?");
-                builder.setCancelable(true);
-                builder.setPositiveButton(
-                        R.string.yes,
-                        new DialogInterface.OnClickListener() {
-                            public void onClick(DialogInterface dialog, int id) {
                 AlertDialog.Builder alert = new AlertDialog.Builder(getActivity());
-                                alert.setTitle("Why should this file be deleted?");
+                alert.setMessage("Why should this file be deleted?");
                 final EditText input = new EditText(getActivity());
                 alert.setView(input);
+                input.requestFocus();
                 alert.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                     public void onClick(DialogInterface dialog, int whichButton) {
                         String reason = input.getText().toString();
@@ -318,38 +312,35 @@ public class MediaDetailFragment extends CommonsDaggerSupportFragment {
                     }
                 });
                 alert.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
-                                    public void onClick(DialogInterface dialog, int whichButton) {}
+                    public void onClick(DialogInterface dialog, int whichButton) {
+                    }
                 });
                 AlertDialog d = alert.create();
                 input.addTextChangedListener(new TextWatcher() {
                     private void handleText() {
                         final Button okButton = d.getButton(AlertDialog.BUTTON_POSITIVE);
-                                        if(input.getText().length() == 0) {
+                        if (input.getText().length() == 0) {
                             okButton.setEnabled(false);
                         } else {
                             okButton.setEnabled(true);
                         }
                     }
+
                     @Override
                     public void afterTextChanged(Editable arg0) {
                         handleText();
                     }
+
                     @Override
-                                    public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
+                    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+                    }
+
                     @Override
-                                    public void onTextChanged(CharSequence s, int start, int before, int count) {}
+                    public void onTextChanged(CharSequence s, int start, int before, int count) {
+                    }
                 });
                 d.show();
                 d.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(false);
-                            }
-                        });
-                builder.setNegativeButton(
-                        R.string.no,
-                        new DialogInterface.OnClickListener() {
-                            public void onClick(DialogInterface dialog, int id) {}
-                        });
-                alert = builder.create();
-                alert.show();
             });
         }
     }

app/src/main/java/fr/free/nrw/commons/mwapi/ApacheHttpClientMediaWikiApi.java

@@ -205,6 +205,13 @@ public class ApacheHttpClientMediaWikiApi implements MediaWikiApi {
                 .getNodes("/api/query/pages/page/imageinfo").size() > 0;
     }
 
+    @Override
+    public boolean pageExists(String pageName) throws IOException {
+        return Double.parseDouble( api.action("query")
+                .param("titles", pageName)
+                .get()
+                .getString("/api/query/pages/page/@_idx")) != -1;
+    }
 
     @Override
     @Nullable

app/src/main/java/fr/free/nrw/commons/mwapi/MediaWikiApi.java

@@ -28,6 +28,8 @@ public interface MediaWikiApi {
 
     boolean fileExistsWithName(String fileName) throws IOException;
 
+    boolean pageExists(String pageName) throws IOException;
+
     String findThumbnailByFilename(String filename) throws IOException;
 
     boolean logEvents(LogBuilder[] logBuilders);

app/src/main/res/values/strings.xml

@@ -231,6 +231,7 @@
   <string name="no_web_browser">No web browser found to open URL</string>
   <string name="null_url">Error! URL not found</string>
   <string name="nominate_deletion">Nominate for Deletion</string>
+  <string name="view_browser">View in Browser</string>
 
   <string name="nearby_location_has_not_changed">Location has not changed.</string>
   <string name="nearby_location_not_available">Location not available.</string>