wpadebug: Add a simple WebView activity

This provides a simple web browser that can be started and stopped from
other apps or native applications.

This activity can be started with the following command:
am start -a android.action.MAIN -c android.intent.category.LAUNCHER \
    -n w1.fi.wpadebug/.WpaWebViewActivity -e w1.fi.wpadebug.URL <URL>

If <URL> is set to FINISH the activity is finished.

Signed-hostap: Jouni Malinen <j@w1.fi>

wpadebug/AndroidManifest.xml

@@ -7,6 +7,7 @@
     <uses-permission android:name="android.permission.NFC" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
+    <uses-permission android:name="android.permission.INTERNET" />
     <application android:label="wpadebug">
         <activity android:name="w1.fi.wpadebug.MainActivity"
                   android:label="wpadebug">
@@ -44,5 +45,13 @@
 		  android:label="Credential"
 		  android:parentActivityName="w1.fi.wpadebug.WpaCredActivity">
 	</activity>
+	<activity android:name="w1.fi.wpadebug.WpaWebViewActivity"
+		  android:label="WebView"
+		  android:launchMode="singleTop"
+		  android:noHistory="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+            </intent-filter>
+	</activity>
     </application>
 </manifest>

wpadebug/src/w1/fi/wpadebug/WpaWebViewActivity.java

@@ -0,0 +1,114 @@
+/*
+ * wpadebug - wpa_supplicant and Wi-Fi debugging app for Android
+ * Copyright (c) 2013, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+package w1.fi.wpadebug;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Window;
+import android.webkit.WebChromeClient;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+import android.widget.Toast;
+
+public class WpaWebViewActivity extends Activity
+{
+    private static final String TAG = "wpadebug";
+    private static final String EXTRA_MESSAGE = "w1.fi.wpadebug.URL";
+    private WebView mWebView;
+    final Activity activity = this;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState)
+    {
+	Log.d(TAG, "WpaWebViewActivity::onCreate");
+        super.onCreate(savedInstanceState);
+
+	Intent intent = getIntent();
+	String url = intent.getStringExtra(EXTRA_MESSAGE);
+	Log.d(TAG, "url=" + url);
+	if (url.equals("FINISH")) {
+	    finish();
+	    return;
+	}
+
+	mWebView = new WebView(this);
+	mWebView.getSettings().setJavaScriptEnabled(true);
+	mWebView.setWebViewClient(new WpaWebViewClient());
+
+	getWindow().requestFeature(Window.FEATURE_PROGRESS);
+
+	mWebView.setWebChromeClient(new WebChromeClient()
+	    {
+		public void onProgressChanged(WebView view, int progress)
+		{
+		    Log.d(TAG, "progress=" + progress);
+		    activity.setProgress(progress * 1000);
+		}
+	    });
+
+        setContentView(mWebView);
+
+	mWebView.loadUrl(url);
+    }
+
+    @Override
+    public void onResume()
+    {
+	Log.d(TAG, "WpaWebViewActivity::onResume");
+        super.onResume();
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent)
+    {
+	Log.d(TAG, "WpaWebViewActivity::onNewIntent");
+	super.onNewIntent(intent);
+	String url = intent.getStringExtra(EXTRA_MESSAGE);
+	Log.d(TAG, "url=" + url);
+	setIntent(intent);
+	if (url.equals("FINISH")) {
+	    finish();
+	    return;
+	}
+	mWebView.loadUrl(url);
+    }
+
+    private class WpaWebViewClient extends WebViewClient {
+	@Override
+	public boolean shouldOverrideUrlLoading(WebView view, String url)
+	{
+	    Log.d(TAG, "shouldOverrideUrlLoading: url=" + url);
+	    Intent intent = getIntent();
+	    intent.putExtra(EXTRA_MESSAGE, url);
+
+	    view.loadUrl(url);
+	    return true;
+	}
+
+	@Override
+	public void onPageFinished(WebView view, String url)
+	{
+	    Log.d(TAG, "onPageFinished: url=" + url);
+	}
+
+	public void onReceivedError(WebView view, int errorCode,
+				    String description, String failingUrl)
+	{
+	    Log.d(TAG, "Failed to load page: errorCode=" +
+		  errorCode + " description=" + description +
+		  " URL=" + failingUrl);
+	    Toast.makeText(activity, "Failed to load page: " +
+			   description + " (URL=" + failingUrl + ")",
+			   Toast.LENGTH_LONG).show();
+	}
+    }
+}