#226: Async key gen task is stopped if progress is canceled

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentServiceHandler.java

@@ -57,15 +57,15 @@ public class KeychainIntentServiceHandler extends Handler {
     }
 
     public KeychainIntentServiceHandler(Activity activity, int progressDialogMessageId, int progressDialogStyle) {
-        this(activity, progressDialogMessageId, progressDialogStyle, false, false);
+        this(activity, progressDialogMessageId, progressDialogStyle, false, null);
     }
 
     public KeychainIntentServiceHandler(Activity activity, int progressDialogMessageId,
                                         int progressDialogStyle, boolean cancelable,
-                                        boolean finishActivityOnCancel) {
+                                        OnCancelListener onCancelListener) {
         this.mActivity = activity;
         this.mProgressDialogFragment = ProgressDialogFragment.newInstance(progressDialogMessageId,
-                progressDialogStyle, cancelable, finishActivityOnCancel);
+                progressDialogStyle, cancelable, onCancelListener);
     }
 
     public void showProgressDialog(FragmentActivity activity) {

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyActivity.java

@@ -44,8 +44,10 @@ import org.sufficientlysecure.keychain.ui.widget.UserIdEditor;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 import org.sufficientlysecure.keychain.util.Log;
 
+import android.app.Activity;
 import android.app.ProgressDialog;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
@@ -173,7 +175,7 @@ public class EditKeyActivity extends ActionBarActivity {
                 if (generateDefaultKeys) {
 
                     // Send all information needed to service generate keys in other thread
-                    Intent serviceIntent = new Intent(this, KeychainIntentService.class);
+                    final Intent serviceIntent = new Intent(this, KeychainIntentService.class);
                     serviceIntent.setAction(KeychainIntentService.ACTION_GENERATE_DEFAULT_RSA_KEYS);
 
                     // fill values for this action
@@ -185,7 +187,17 @@ public class EditKeyActivity extends ActionBarActivity {
 
                     // Message is received after generating is done in ApgService
                     KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(
-                            this, R.string.progress_generating, ProgressDialog.STYLE_SPINNER, true, true) {
+                            this, R.string.progress_generating, ProgressDialog.STYLE_SPINNER, true,
+
+                            new DialogInterface.OnCancelListener() {
+                                @Override
+                                public void onCancel(DialogInterface dialog) {
+                                    // Stop key generation on cancel
+                                    stopService(serviceIntent);
+                                    EditKeyActivity.this.setResult(Activity.RESULT_CANCELED);
+                                    EditKeyActivity.this.finish();
+                                }
+                            }) {
 
                         @Override
                         public void handleMessage(Message message) {

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java

@@ -83,7 +83,7 @@ public class DeleteFileDialogFragment extends DialogFragment {
                 intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
 
                 ProgressDialogFragment deletingDialog = ProgressDialogFragment.newInstance(
-                        R.string.progress_deleting_securely, ProgressDialog.STYLE_HORIZONTAL, false, false);
+                        R.string.progress_deleting_securely, ProgressDialog.STYLE_HORIZONTAL, false, null);
 
                 // Message is received after deleting is done in ApgService
                 KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(activity, deletingDialog) {

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java

@@ -21,6 +21,7 @@ import android.app.Activity;
 import android.app.Dialog;
 import android.app.ProgressDialog;
 import android.content.DialogInterface;
+import android.content.DialogInterface.OnCancelListener;
 import android.content.DialogInterface.OnKeyListener;
 import android.os.Bundle;
 import android.support.v4.app.DialogFragment;
@@ -32,7 +33,8 @@ public class ProgressDialogFragment extends DialogFragment {
     private static final String ARG_MESSAGE_ID = "message_id";
     private static final String ARG_STYLE = "style";
     private static final String ARG_CANCELABLE = "cancelable";
-    private static final String ARG_FINISH_ON_CANCEL = "finish_activity_on_cancel";
+
+    private OnCancelListener mOnCancelListener;
 
     /**
      * Creates new instance of this fragment
@@ -43,15 +45,16 @@ public class ProgressDialogFragment extends DialogFragment {
      * @return
      */
     public static ProgressDialogFragment newInstance(int messageId, int style, boolean cancelable,
-                                                     boolean finishActivityOnCancel) {
+                                                     OnCancelListener onCancelListener) {
         ProgressDialogFragment frag = new ProgressDialogFragment();
         Bundle args = new Bundle();
         args.putInt(ARG_MESSAGE_ID, messageId);
         args.putInt(ARG_STYLE, style);
         args.putBoolean(ARG_CANCELABLE, cancelable);
-        args.putBoolean(ARG_FINISH_ON_CANCEL, finishActivityOnCancel);
 
         frag.setArguments(args);
+        frag.mOnCancelListener = onCancelListener;
+
         return frag;
     }
 
@@ -94,6 +97,14 @@ public class ProgressDialogFragment extends DialogFragment {
         dialog.setMax(max);
     }
 
+    @Override
+    public void onCancel(DialogInterface dialog) {
+        super.onCancel(dialog);
+
+        if (this.mOnCancelListener != null)
+            this.mOnCancelListener.onCancel(dialog);
+    }
+
     /**
      * Creates dialog
      */
@@ -120,12 +131,6 @@ public class ProgressDialogFragment extends DialogFragment {
                 @Override
                 public void onClick(DialogInterface dialog, int which) {
                     dialog.cancel();
-
-                    boolean finishActivity = getArguments().getBoolean(ARG_FINISH_ON_CANCEL);
-                    if (finishActivity) {
-                        activity.setResult(Activity.RESULT_CANCELED);
-                        activity.finish();
-                    }
                 }
             });
         }

OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/SectionView.java

@@ -18,6 +18,7 @@ package org.sufficientlysecure.keychain.ui.widget;
 
 import android.app.ProgressDialog;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.Message;
@@ -211,7 +212,7 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
 
     private void createKey() {
         // Send all information needed to service to edit key in other thread
-        Intent intent = new Intent(mActivity, KeychainIntentService.class);
+        final Intent intent = new Intent(mActivity, KeychainIntentService.class);
 
         intent.setAction(KeychainIntentService.ACTION_GENERATE_KEY);
 
@@ -238,7 +239,12 @@ public class SectionView extends LinearLayout implements OnClickListener, Editor
 
         // show progress dialog
         mGeneratingDialog = ProgressDialogFragment.newInstance(R.string.progress_generating,
-                ProgressDialog.STYLE_SPINNER, true, false);
+                ProgressDialog.STYLE_SPINNER, true, new DialogInterface.OnCancelListener() {
+            @Override
+            public void onCancel(DialogInterface dialog) {
+                mActivity.stopService(intent);
+            }
+        });
 
         // Message is received after generating is done in ApgService
         KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(mActivity,