package eu.codebits.plasmas;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.net.http.SslError;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.webkit.DownloadListener;
import android.webkit.GeolocationPermissions;
import android.webkit.JavascriptInterface;
import android.webkit.SslErrorHandler;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
import static eu.codebits.plasmas.util.NetworkInterfaces.getIPAddress;
import static eu.codebits.plasmas.util.NetworkInterfaces.getMACAddress;
import eu.codebits.plasmas.util.SystemUiHider;
/**
* A textbook JavaScript interface class that exposes our utility functions
*/
class HardwareInterface {
Context mContext;
HardwareInterface(Context c) {
mContext = c;
}
@JavascriptInterface
public String IPAddress() {
return getIPAddress(null, true);
}
@JavascriptInterface
public String MACAddress() {
return getMACAddress(null);
}
}
/**
* A full-screen activity that shows and hides the system UI (i.e. status bar
* and navigation/system bar) with user interaction.
*
* @see SystemUiHider
*/
public class FullScreenWebViewActivity extends Activity {
/**
* Whether or not the system UI should be auto-hidden after
* {@link #AUTO_HIDE_DELAY_MILLIS} milliseconds.
*/
private static final boolean AUTO_HIDE = true;
/**
* If {@link #AUTO_HIDE} is set, the number of milliseconds to wait after
* user interaction before hiding the system UI.
*/
private static final int AUTO_HIDE_DELAY_MILLIS = 10;
/**
* The flags to pass to {@link SystemUiHider#getInstance}.
*/
private static final int HIDER_FLAGS = SystemUiHider.FLAG_HIDE_NAVIGATION;
/**
* The instance of the {@link SystemUiHider} for this activity.
*/
private SystemUiHider mSystemUiHider;
public class CustomWebChromeClient extends WebChromeClient {
@Override
public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {
// Always grant permission since the app itself requires location
// permission and the user has therefore already granted it
callback.invoke(origin, true, false);
}
}
private void rebuildWebview() {
}
private static final String TAG = "WebViewActivity";
private Activity activity;
private Intent intent;
WebView webView;
@Override
public void onNewIntent(Intent intent) {
super.onNewIntent(intent);
Uri uri = intent.getData();
String url;
if (uri == null) {
url = getString(R.string.initial_url);
} else {
url = uri.toString();
}
//Log.i(TAG, "Displaying: " + url);
webView.freeMemory();
webView.loadUrl(url);
}
@SuppressLint({"SetJavaScriptEnabled", "NewApi"})
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
intent = getIntent();
activity = this;
setContentView(R.layout.activity_fullscreen);
webView = (WebView) findViewById(R.id.webView);
webView.setWebChromeClient(new CustomWebChromeClient());
webView.addJavascriptInterface(new HardwareInterface(this), "Android");
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false; // handle redirects internally (stop launching the default browser)
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed(); // allow self-unsigned SSL certificates for dev
}
@Override
public void onReceivedError(final WebView view, int errorCode, String description, String failingUrl) {
// load a blank page and retry, rather heavy-handedly
Log.w(TAG, String.format("%d: Could not load %s: %s", errorCode, failingUrl, description));
view.loadData(getString(R.string.blank_page), "text/html", null);
Toast.makeText(activity, "Network error", Toast.LENGTH_SHORT).show();
final String retryUrl = failingUrl;
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Toast.makeText(activity, "Retrying...", Toast.LENGTH_SHORT).show();
view.loadUrl(retryUrl);
}
}, 1000);
//super.onReceivedError(view, errorCode, description, failingUrl);
}
@Override
public void onPageFinished(WebView view, String url) {
// inject device information into the DOM
webView.loadUrl(
String.format("javascript:(function() {window.device = Object({'MACAddress':'%s', 'IPAddress':'%s'})})()",
getMACAddress(null), getIPAddress(null, true))
);
}
});
webView.setDownloadListener(new DownloadListener() {
// allow us to download stuff inside this webview for dev
public void onDownloadStart(String url, String userAgent,
String contentDisposition, String mimetype,
long contentLength) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
}
});
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.getSettings().setGeolocationEnabled(true); // let us send back minimal info from JS
webView.getSettings().setMediaPlaybackRequiresUserGesture(false); // start media automatically (if we can get it to work)
webView.getSettings().setUseWideViewPort(true); // use viewport meta tag if present
webView.loadUrl(getString(R.string.initial_url));
final View controlsView = findViewById(R.id.fullscreen_content_controls);
// Set up an instance of SystemUiHider to control the system UI for
// this activity.
mSystemUiHider = SystemUiHider.getInstance(this, webView, HIDER_FLAGS);
mSystemUiHider.setup();
mSystemUiHider.setOnVisibilityChangeListener(new SystemUiHider.OnVisibilityChangeListener() {
// Cached values.
int mControlsHeight;
int mShortAnimTime;
@Override
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
public void onVisibilityChange(boolean visible) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
// If the ViewPropertyAnimator API is available
// (Honeycomb MR2 and later), use it to animate the
// in-layout UI controls at the bottom of the
// screen.
if (mControlsHeight == 0) {
mControlsHeight = controlsView.getHeight();
}
if (mShortAnimTime == 0) {
mShortAnimTime = getResources().getInteger(
android.R.integer.config_shortAnimTime);
}
controlsView.animate()
.translationY(visible ? 0 : mControlsHeight)
.setDuration(mShortAnimTime);
} else {
// If the ViewPropertyAnimator APIs aren't
// available, simply show or hide the in-layout UI
// controls.
controlsView.setVisibility(visible ? View.VISIBLE : View.GONE);
}
if (visible && AUTO_HIDE) {
// Schedule a hide().
delayedHide(AUTO_HIDE_DELAY_MILLIS);
}
}
});
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Trigger the initial hide() shortly after the activity has been
// created, to briefly hint to the user that UI controls
// are available.
delayedHide(100);
}
@Override
public void onBackPressed() {
if (getResources().getInteger(R.integer.back_button_in_webview) > 0) {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
} else {
super.onBackPressed();
}
}
/**
* Touch listener to use for in-layout UI controls to delay hiding the
* system UI. This is to prevent the jarring behavior of controls going away
* while interacting with activity UI.
*/
View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if (AUTO_HIDE) {
delayedHide(AUTO_HIDE_DELAY_MILLIS);
}
return false;
}
};
Handler mHideHandler = new Handler();
Runnable mHideRunnable = new Runnable() {
@Override
public void run() {
mSystemUiHider.hide();
}
};
/**
* Schedules a call to hide() in [delay] milliseconds, canceling any
* previously scheduled calls.
*/
private void delayedHide(int delayMillis) {
mHideHandler.removeCallbacks(mHideRunnable);
mHideHandler.postDelayed(mHideRunnable, delayMillis);
}
}