310 lines
11 KiB
Java

package com.cradle.iitc_mobile;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Build;
import android.preference.PreferenceManager;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.webkit.ConsoleMessage;
import android.webkit.GeolocationPermissions;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.Toast;
import com.cradle.iitc_mobile.async.CheckHttpResponse;
import java.util.HashSet;
import java.util.Set;
@SuppressLint("SetJavaScriptEnabled")
public class IITC_WebView extends WebView {
// fullscreen modes
public static final int FS_ENABLED = (1 << 0);
public static final int FS_SYSBAR = (1 << 1);
public static final int FS_ACTIONBAR = (1 << 2);
public static final int FS_STATUSBAR = (1 << 3);
public static final int FS_NAVBAR = (1 << 4);
private WebSettings mSettings;
private IITC_WebViewClient mIitcWebViewClient;
private IITC_JSInterface mJsInterface;
private IITC_Mobile mIitc;
private SharedPreferences mSharedPrefs;
private int mFullscreenStatus = 0;
private Runnable mNavHider;
private boolean mDisableJs = false;
private String mDefaultUserAgent;
private final String mDesktopUserAgent = "Mozilla/5.0 (X11; Linux x86_64; rv:17.0)" +
" Gecko/20130810 Firefox/17.0 Iceweasel/17.0.8";
// init web view
private void iitc_init(Context c) {
if (isInEditMode()) return;
mIitc = (IITC_Mobile) c;
mSettings = getSettings();
mSettings.setJavaScriptEnabled(true);
mSettings.setDomStorageEnabled(true);
mSettings.setAllowFileAccess(true);
mSettings.setGeolocationEnabled(true);
mSettings.setAppCacheEnabled(true);
mSettings.setDatabasePath(getContext().getApplicationInfo().dataDir + "/databases/");
mSettings.setAppCachePath(getContext().getCacheDir().getAbsolutePath());
mJsInterface = new IITC_JSInterface(mIitc);
addJavascriptInterface(mJsInterface, "android");
mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(mIitc);
mDefaultUserAgent = mSettings.getUserAgentString();
setUserAgent();
mNavHider = new Runnable() {
@Override
public void run() {
if (isInFullscreen() && (getFullscreenStatus() & (FS_NAVBAR)) != 0) {
setSystemUiVisibility(SYSTEM_UI_FLAG_HIDE_NAVIGATION);
}
}
};
setWebChromeClient(new WebChromeClient() {
/**
* our webchromeclient should share geolocation with the iitc script
*
* allow access by default
*/
@Override
public void onGeolocationPermissionsShowPrompt(String origin,
GeolocationPermissions.Callback callback) {
callback.invoke(origin, true, false);
}
/**
* display progress bar in activity
*/
@Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
// maximum for newProgress is 100
// maximum for setProgress is 10,000
((Activity) getContext()).setProgress(newProgress * 100);
}
/**
* remove splash screen if any JS error occurs
*/
@Override
public boolean onConsoleMessage(ConsoleMessage consoleMessage) {
if (consoleMessage.messageLevel() == ConsoleMessage.MessageLevel.ERROR) {
mIitc.setLoadingState(false);
}
return super.onConsoleMessage(consoleMessage);
}
});
mIitcWebViewClient = new IITC_WebViewClient(c);
setWebViewClient(mIitcWebViewClient);
}
// constructors -------------------------------------------------
public IITC_WebView(Context context) {
super(context);
iitc_init(context);
}
public IITC_WebView(Context context, AttributeSet attrs) {
super(context, attrs);
iitc_init(context);
}
public IITC_WebView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
iitc_init(context);
}
// ----------------------------------------------------------------
@Override
public void loadUrl(String url) {
// if in edit text mode, don't load javascript otherwise the keyboard closes.
HitTestResult testResult = getHitTestResult();
if (url.startsWith("javascript:") && testResult != null &&
testResult.getType() == HitTestResult.EDIT_TEXT_TYPE) {
// let window.show(...) interupt input
// window.show(...) is called if one of the action bar buttons
// is clicked
if (!url.startsWith("javascript: window.show(")) {
Log.d("iitcm", "in insert mode. do not load script.");
return;
}
}
// do nothing if script is enabled;
if (mDisableJs) {
Log.d("iitcm", "javascript injection disabled...return");
return;
}
if (!url.startsWith("javascript:")) {
// force https if enabled in settings
SharedPreferences sharedPref = PreferenceManager
.getDefaultSharedPreferences(getContext());
if (sharedPref.getBoolean("pref_force_https", true)) {
url = url.replace("http://", "https://");
} else {
url = url.replace("https://", "http://");
}
// disable splash screen if a http error code is responded
new CheckHttpResponse(mJsInterface, mIitc).execute(url);
Log.d("iitcm", "loading url: " + url);
}
super.loadUrl(url);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
getHandler().removeCallbacks(mNavHider);
getHandler().postDelayed(mNavHider, 2000);
return super.onTouchEvent(event);
}
@Override
public void setSystemUiVisibility(int visibility) {
getHandler().postDelayed(mNavHider, 2000);
super.setSystemUiVisibility(visibility);
}
@Override
public void onWindowFocusChanged(boolean hasWindowFocus) {
if (hasWindowFocus) {
getHandler().postDelayed(mNavHider, 2000);
} else {
getHandler().removeCallbacks(mNavHider);
}
super.onWindowFocusChanged(hasWindowFocus);
}
public void toggleFullscreen() {
mFullscreenStatus ^= FS_ENABLED;
WindowManager.LayoutParams attrs = mIitc.getWindow().getAttributes();
// toggle notification bar
if (isInFullscreen()) {
// show a toast with instructions to exit the fullscreen mode again
Toast.makeText(mIitc, "Press back button to exit fullscreen", Toast.LENGTH_SHORT).show();
if ((mFullscreenStatus & FS_ACTIONBAR) != 0) {
mIitc.getNavigationHelper().hideActionBar();
}
if ((mFullscreenStatus & FS_SYSBAR) != 0) {
attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
}
if ((mFullscreenStatus & FS_NAVBAR) != 0) {
setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
}
if ((mFullscreenStatus & FS_STATUSBAR) != 0) {
loadUrl("javascript: $('#updatestatus').hide();");
}
} else {
attrs.flags &= ~WindowManager.LayoutParams.FLAG_FULLSCREEN;
mIitc.getNavigationHelper().showActionBar();
loadUrl("javascript: $('#updatestatus').show();");
}
mIitc.getWindow().setAttributes(attrs);
}
void updateFullscreenStatus() {
Set<String> entries = mSharedPrefs.getStringSet("pref_fullscreen", new HashSet<String>());
mFullscreenStatus &= FS_ENABLED;
// default values...android has no nice way to add default values to multiSelectListPreferences
if (entries.isEmpty()) {
mFullscreenStatus += FS_ACTIONBAR | FS_SYSBAR;
}
for (String entry : entries) {
mFullscreenStatus += Integer.parseInt(entry);
}
}
int getFullscreenStatus() {
return mFullscreenStatus;
}
public boolean isInFullscreen() {
return (mFullscreenStatus & FS_ENABLED) != 0;
}
public IITC_WebViewClient getWebViewClient() {
return mIitcWebViewClient;
}
public IITC_JSInterface getJSInterface() {
return mJsInterface;
}
public void updateCaching(boolean login) {
switch (Integer.parseInt(mSharedPrefs.getString("pref_caching", "1"))) {
case 0:
mSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
break;
case 2:
mSettings.setCacheMode(WebSettings.LOAD_DEFAULT);
break;
default:
if (getUrl() != null) {
login |= getUrl().contains("accounts.google.com");
}
// use cache if on mobile network...saves traffic
if (!isConnectedToWifi() && !login) {
Log.d("iitcm", "not connected to wifi...load tiles from cache");
mSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
} else {
if (login) {
Log.d("iitcm", "login...load tiles from network");
} else {
Log.d("iitcm", "connected to wifi...load tiles from network");
}
mSettings.setCacheMode(WebSettings.LOAD_DEFAULT);
}
break;
}
}
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private boolean isConnectedToWifi() {
ConnectivityManager conMan = (ConnectivityManager) getContext()
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo wifi = conMan.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
// since jelly bean you can mark wifi networks as mobile hotspots
// settings -> data usage -> menu -> mobile hotspots
// ConnectivityManager.isActiveNetworkMeter returns if the currently used wifi-network
// is ticked as mobile hotspot or not.
// --> IITC_WebView.isConnectedToWifi should return 'false' if connected to mobile hotspot
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
return ((wifi.getState() == NetworkInfo.State.CONNECTED) &&
!conMan.isActiveNetworkMetered());
}
return (wifi.getState() == NetworkInfo.State.CONNECTED);
}
public void disableJS(boolean val) {
mDisableJs = val;
}
public void setUserAgent() {
String ua = mSharedPrefs.getBoolean("pref_fake_user_agent", false) ? mDesktopUserAgent : mDefaultUserAgent;
Log.d("iitcm", "setting user agent to: " + ua);
mSettings.setUserAgentString(ua);
}
}