+package com.owncloud.android.authentication;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+
+import com.owncloud.android.MainApp;
+import com.owncloud.android.ui.activity.PinCodeActivity;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class PassCodeManager {
+
+ private static final Set<Class> sExemptOfPasscodeActivites;
+
+ static {
+ sExemptOfPasscodeActivites = new HashSet<Class>();
+ sExemptOfPasscodeActivites.add(PinCodeActivity.class);
+ // other activities may be exempted, if needed
+ }
+
+ private static int PASS_CODE_TIMEOUT = 1000;
+ // keeping a "low" value (not 0) is the easiest way to avoid prevent the pass code is requested on rotations
+
+ public static PassCodeManager mPassCodeManagerInstance = null;
+
+ public static PassCodeManager getPassCodeManager() {
+ if (mPassCodeManagerInstance == null) {
+ mPassCodeManagerInstance = new PassCodeManager();
+ }
+ return mPassCodeManagerInstance;
+ }
+
+ private Long mTimestamp = 0l;
+ private int mVisibleActivitiesCounter = 0;
+
+ protected PassCodeManager() {};
+
+ public void onActivityStarted(Activity activity) {
+ if (!sExemptOfPasscodeActivites.contains(activity.getClass()) &&
+ passCodeShouldBeRequested()
+ ){
+
+ Intent i = new Intent(MainApp.getAppContext(), PinCodeActivity.class);
+ i.setAction(PinCodeActivity.ACTION_REQUEST);
+ i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
+ activity.startActivity(i);
+ }
+
+ mVisibleActivitiesCounter++; // AFTER passCodeShouldBeRequested was checked
+ }
+
+ public void onActivityStopped(Activity activity) {
+ if (mVisibleActivitiesCounter > 0) {
+ mVisibleActivitiesCounter--;
+ }
+ setUnlockTimestamp();
+ }
+
+ private boolean passCodeShouldBeRequested(){
+ if ((System.currentTimeMillis() - mTimestamp) > PASS_CODE_TIMEOUT &&
+ mVisibleActivitiesCounter <= 0
+ ){
+ SharedPreferences appPrefs = PreferenceManager.getDefaultSharedPreferences(MainApp.getAppContext());
+ if (appPrefs.getBoolean("set_pincode", false)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ private void setUnlockTimestamp() {
+ mTimestamp = System.currentTimeMillis();
+ }
+
+}