#398 Check the URL (and draw the check) only on blur

Checking the URL on every text change can lead to privacy issues (e.g. if a subdomain is also an existing domain and a request is done to this domain).

app/src/main/java/it/niedermann/owncloud/notes/android/activity/SettingsActivity.java

@@ -76,6 +76,13 @@ public class SettingsActivity extends AppCompatActivity {
             }
         }
 
+        field_url.setOnFocusChangeListener(new View.OnFocusChangeListener() {
+            @Override
+            public void onFocusChange(View v, boolean hasFocus) {
+                new URLValidatorAsyncTask().execute(getNormalizedUrl());
+            }
+        });
+
         field_url.addTextChangedListener(new TextWatcher() {
             @Override
             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
@@ -83,15 +90,7 @@ public class SettingsActivity extends AppCompatActivity {
 
             @Override
             public void onTextChanged(CharSequence s, int start, int before, int count) {
-                String url = field_url.getText().toString().trim();
+                String url = getNormalizedUrl();
-
-                if (!url.endsWith("/")) {
-                    url += "/";
-                }
-                if (!url.startsWith("http://") && !url.startsWith("https://")) {
-                    url = "https://" + url;
-                }
-                new URLValidatorAsyncTask().execute(url);
 
                 if (NotesClientUtil.isHttp(url)) {
                     urlWarnHttp.setVisibility(View.VISIBLE);
@@ -202,6 +201,23 @@ public class SettingsActivity extends AppCompatActivity {
         }
     }
 
+    /**
+     * Takes care about protocol and a slash at the end.
+     * @return normalized Url
+     */
+    private String getNormalizedUrl() {
+        String url = field_url.getText().toString().trim();
+
+        if (!url.endsWith("/")) {
+            url += "/";
+        }
+        if (!url.startsWith("http://") && !url.startsWith("https://")) {
+            url = "https://" + url;
+        }
+
+        return url;
+    }
+
     /************************************ Async Tasks ************************************/
 
     /**