fix for CB-5534

Signed-off-by: Joe Bowser <bowserj@apache.org>

src/android/InAppBrowser.java

@@ -19,9 +19,8 @@
 package org.apache.cordova.inappbrowser;
 
 import android.annotation.SuppressLint;
-import android.app.Dialog;
+import org.apache.cordova.inappbrowser.InAppBrowserDialog;
 import android.content.Context;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
@@ -80,7 +79,7 @@ public class InAppBrowser extends CordovaPlugin {
     private static final String CLEAR_ALL_CACHE = "clearcache";
     private static final String CLEAR_SESSION_CACHE = "clearsessioncache";
 
-    private Dialog dialog;
+    private InAppBrowserDialog dialog;
     private WebView inAppWebView;
     private EditText edittext;
     private CallbackContext callbackContext;
@@ -337,12 +336,21 @@ public class InAppBrowser extends CordovaPlugin {
         this.cordova.getActivity().runOnUiThread(new Runnable() {
             @Override
             public void run() {
-                childView.loadUrl("about:blank");
+                childView.setWebViewClient(new WebViewClient() {
+                    // NB: wait for about:blank before dismissing
+                    public void onPageFinished(WebView view, String url) {
                 if (dialog != null) {
                     dialog.dismiss();
                 }
             }
         });
+                // NB: From SDK 19: "If you call methods on WebView from any thread 
+                // other than your app's UI thread, it can cause unexpected results."
+                // http://developer.android.com/guide/webapps/migrating.html#Threads
+                childView.loadUrl("about:blank");
+            }
+        });
+
         try {
             JSONObject obj = new JSONObject();
             obj.put("type", EXIT_EVENT);
@@ -350,7 +358,6 @@ public class InAppBrowser extends CordovaPlugin {
         } catch (JSONException ex) {
             Log.d(LOG_TAG, "Should never happen");
         }
-        
     }
 
     /**
@@ -398,6 +405,10 @@ public class InAppBrowser extends CordovaPlugin {
         return this.showLocationBar;
     }
 
+    private InAppBrowser getInAppBrowser(){
+        return this;
+    }
+
     /**
      * Display a new browser with the specified URL.
      *
@@ -448,15 +459,11 @@ public class InAppBrowser extends CordovaPlugin {
 
             public void run() {
                 // Let's create the main dialog
-                dialog = new Dialog(cordova.getActivity(), android.R.style.Theme_NoTitleBar);
+                dialog = new InAppBrowserDialog(cordova.getActivity(), android.R.style.Theme_NoTitleBar);
                 dialog.getWindow().getAttributes().windowAnimations = android.R.style.Animation_Dialog;
                 dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
                 dialog.setCancelable(true);
-                dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
+                dialog.setInAppBroswer(getInAppBrowser());
-                        public void onDismiss(DialogInterface dialog) {
-                            closeDialog();
-                        }
-                });
 
                 // Main container layout
                 LinearLayout main = new LinearLayout(cordova.getActivity());

src/android/InAppBrowserDialog.java

@@ -0,0 +1,54 @@
+/*
+       Licensed to the Apache Software Foundation (ASF) under one
+       or more contributor license agreements.  See the NOTICE file
+       distributed with this work for additional information
+       regarding copyright ownership.  The ASF licenses this file
+       to you under the Apache License, Version 2.0 (the
+       "License"); you may not use this file except in compliance
+       with the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+       Unless required by applicable law or agreed to in writing,
+       software distributed under the License is distributed on an
+       "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+       KIND, either express or implied.  See the License for the
+       specific language governing permissions and limitations
+       under the License.
+*/
+package org.apache.cordova.inappbrowser;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.Context;
+import android.util.Log;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * Created by Oliver on 22/11/2013.
+ */
+public class InAppBrowserDialog extends Dialog {
+    Context context;
+    InAppBrowser inAppBrowser = null;
+
+    public InAppBrowserDialog(Context context, int theme) {
+        super(context, theme);
+        this.context = context;
+    }
+
+    public void setInAppBroswer(InAppBrowser browser) {
+        this.inAppBrowser = browser;
+    }
+
+    public void onBackPressed () {
+        if (this.inAppBrowser == null) {
+            this.dismiss();
+        } else {
+            // better to go through the in inAppBrowser
+            // because it does a clean up
+            this.inAppBrowser.closeDialog();
+        }
+    }
+}