Added permission handling and support for API 23

app/build.gradle

@@ -5,7 +5,7 @@ android {
     buildToolsVersion "23.0.0"
     defaultConfig {
         minSdkVersion 14
-        targetSdkVersion 22
+        targetSdkVersion 23
         versionName "4.1.1a"
     }
     sourceSets {

app/src/main/AndroidManifest.xml

@@ -4,8 +4,6 @@
     package="acr.browser.lightning" >
 
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="com.android.browser.permission.READ_HISTORY_BOOKMARKS" />
-    <uses-permission android:name="com.android.browser.permission.WRITE_HISTORY_BOOKMARKS" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

app/src/main/java/acr/browser/lightning/activity/BrowserActivity.java

@@ -118,6 +118,7 @@ import acr.browser.lightning.object.DrawerArrowDrawable;
 import acr.browser.lightning.object.SearchAdapter;
 import acr.browser.lightning.preference.PreferenceManager;
 import acr.browser.lightning.receiver.NetworkReceiver;
+import acr.browser.lightning.utils.PermissionsManager;
 import acr.browser.lightning.utils.ProxyUtils;
 import acr.browser.lightning.utils.ThemeUtils;
 import acr.browser.lightning.utils.UrlUtils;
@@ -2868,4 +2869,10 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
             }
         }
     };
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        PermissionsManager.getInstance().notifyPermissionsChange(permissions);
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+    }
 }

app/src/main/java/acr/browser/lightning/activity/SettingsActivity.java

@@ -4,6 +4,7 @@
 package acr.browser.lightning.activity;
 
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.v7.widget.Toolbar;
 import android.view.MenuItem;
 import android.view.View;
@@ -14,6 +15,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import acr.browser.lightning.R;
+import acr.browser.lightning.utils.PermissionsManager;
 
 public class SettingsActivity extends ThemableSettingsActivity {
 
@@ -56,4 +58,10 @@ public class SettingsActivity extends ThemableSettingsActivity {
         finish();
         return true;
     }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        PermissionsManager.getInstance().notifyPermissionsChange(permissions);
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+    }
 }

app/src/main/java/acr/browser/lightning/fragment/BookmarkSettingsFragment.java

@@ -3,8 +3,10 @@
  */
 package acr.browser.lightning.fragment;
 
+import android.Manifest;
 import android.app.Activity;
 import android.content.DialogInterface;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Environment;
 import android.preference.Preference;
@@ -17,7 +19,7 @@ import java.util.Comparator;
 
 import acr.browser.lightning.R;
 import acr.browser.lightning.database.BookmarkManager;
-import acr.browser.lightning.preference.PreferenceManager;
+import acr.browser.lightning.utils.PermissionsManager;
 
 public class BookmarkSettingsFragment extends PreferenceFragment implements Preference.OnPreferenceClickListener {
 
@@ -28,6 +30,11 @@ public class BookmarkSettingsFragment extends PreferenceFragment implements Pref
     private BookmarkManager mBookmarkManager;
     private File[] mFileList;
     private String[] mFileNameList;
+    private PermissionsManager mPermissionsManager;
+    private static String[] REQUIRED_PERMISSIONS = new String[]{
+            Manifest.permission.READ_EXTERNAL_STORAGE,
+            Manifest.permission.WRITE_EXTERNAL_STORAGE
+    };
     private static final File mPath = new File(Environment.getExternalStorageDirectory().toString());
 
     @Override
@@ -41,11 +48,14 @@ public class BookmarkSettingsFragment extends PreferenceFragment implements Pref
         mBookmarkManager = BookmarkManager.getInstance(mActivity.getApplicationContext());
 
         initPrefs();
+
+        mPermissionsManager = PermissionsManager.getInstance();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+            mPermissionsManager.requestPermissionsIfNecessary(getActivity(), REQUIRED_PERMISSIONS);
+        }
     }
 
     private void initPrefs() {
-        // mPreferences storage
-        PreferenceManager mPreferences = PreferenceManager.getInstance();
 
         Preference exportpref = findPreference(SETTINGS_EXPORT);
         Preference importpref = findPreference(SETTINGS_IMPORT);
@@ -58,11 +68,15 @@ public class BookmarkSettingsFragment extends PreferenceFragment implements Pref
     public boolean onPreferenceClick(Preference preference) {
         switch (preference.getKey()) {
             case SETTINGS_EXPORT:
-                mBookmarkManager.exportBookmarks(getActivity());
+                if (PermissionsManager.checkPermissions(getActivity(), REQUIRED_PERMISSIONS)) {
+                    mBookmarkManager.exportBookmarks(getActivity());
+                }
                 return true;
             case SETTINGS_IMPORT:
-                loadFileList(null);
+                if (PermissionsManager.checkPermissions(getActivity(), REQUIRED_PERMISSIONS)) {
-                createDialog();
+                    loadFileList(null);
+                    createDialog();
+                }
                 return true;
             default:
                 return false;
@@ -87,12 +101,11 @@ public class BookmarkSettingsFragment extends PreferenceFragment implements Pref
             mFileList = new File[0];
         }
 
-        Arrays.sort(mFileList, new SortName());
-
         if (mFileList == null) {
             mFileNameList = new String[0];
             mFileList = new File[0];
         } else {
+            Arrays.sort(mFileList, new SortName());
             mFileNameList = new String[mFileList.length];
         }
         for (int n = 0; n < mFileList.length; n++) {

app/src/main/java/acr/browser/lightning/utils/PermissionsManager.java

@@ -0,0 +1,75 @@
+package acr.browser.lightning.utils;
+
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.support.annotation.NonNull;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Copyright 8/22/2015 Anthony Restaino
+ */
+public class PermissionsManager {
+
+    private static PermissionsManager mInstance;
+    private Set<String> mPendingRequests = new HashSet<>();
+
+    public static PermissionsManager getInstance() {
+        if (mInstance == null) {
+            mInstance = new PermissionsManager();
+        }
+        return mInstance;
+    }
+
+    public void requestPermissionsIfNecessary(Activity activity, @NonNull String[] permissions) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M || activity == null) {
+            return;
+        }
+        List<String> permList = new ArrayList<>();
+        for (String perm : permissions) {
+            if (activity.checkSelfPermission(perm) != PackageManager.PERMISSION_GRANTED
+                    && !mPendingRequests.contains(perm)) {
+                permList.add(perm);
+            }
+        }
+        if (!permList.isEmpty()) {
+            String[] permsToRequest = permList.toArray(new String[permList.size()]);
+            mPendingRequests.addAll(permList);
+            activity.requestPermissions(permsToRequest, 1);
+        }
+
+    }
+
+    public static boolean checkPermission(Activity activity, @NonNull String permission) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+            return true;
+        } else if (activity == null) {
+            return false;
+        }
+        return activity.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
+    }
+
+    public static boolean checkPermissions(Activity activity, @NonNull String[] permissions) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+            return true;
+        } else if (activity == null) {
+            return false;
+        }
+        boolean permissionsNecessary = true;
+        for (String perm : permissions) {
+            permissionsNecessary &= activity.checkSelfPermission(perm) == PackageManager.PERMISSION_GRANTED;
+        }
+        return permissionsNecessary;
+    }
+
+    public void notifyPermissionsChange(String[] permissions) {
+        for (String perm : permissions) {
+            mPendingRequests.remove(perm);
+        }
+    }
+
+}

app/src/main/java/acr/browser/lightning/view/LightningView.java

@@ -4,6 +4,7 @@
 
 package acr.browser.lightning.view;
 
+import android.Manifest;
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.ActivityNotFoundException;
@@ -62,6 +63,7 @@ import acr.browser.lightning.download.LightningDownloadListener;
 import acr.browser.lightning.preference.PreferenceManager;
 import acr.browser.lightning.utils.AdBlock;
 import acr.browser.lightning.utils.IntentUtils;
+import acr.browser.lightning.utils.PermissionsManager;
 import acr.browser.lightning.utils.ThemeUtils;
 import acr.browser.lightning.utils.Utils;
 
@@ -93,6 +95,8 @@ public class LightningView {
             0, 0, -1.0f, 0, 255, // blue
             0, 0, 0, 1.0f, 0 // alpha
     };
+    private PermissionsManager mPermissionsManager;
+    private static final String[] PERMISSIONS = new String[]{Manifest.permission.ACCESS_FINE_LOCATION};
 
     public LightningView(Activity activity, String url, boolean darkTheme, boolean isIncognito) {
 
@@ -101,6 +105,7 @@ public class LightningView {
         mIsIncognitoTab = isIncognito;
         mTitle = new Title(activity, darkTheme);
         mAdBlock = AdBlock.getInstance(activity.getApplicationContext());
+        mPermissionsManager = PermissionsManager.getInstance();
 
         mWebpageBitmap = mTitle.mDefaultIcon;
 
@@ -288,10 +293,13 @@ public class LightningView {
 
         if (!mIsIncognitoTab) {
             settings.setGeolocationEnabled(mPreferences.getLocationEnabled());
+            if (mPreferences.getLocationEnabled() && !PermissionsManager.checkPermissions(mActivity, PERMISSIONS)) {
+                mPermissionsManager.requestPermissionsIfNecessary(mActivity, PERMISSIONS);
+            }
         } else {
             settings.setGeolocationEnabled(false);
         }
-        if (API < 19) {
+        if (API < Build.VERSION_CODES.KITKAT) {
             switch (mPreferences.getFlashSupport()) {
                 case 0:
                     settings.setPluginState(PluginState.OFF);
@@ -709,10 +717,10 @@ public class LightningView {
 
     public class LightningWebClient extends WebViewClient {
 
-        final Context mActivity;
+        final Activity mActivity;
 
-        LightningWebClient(Context context) {
+        LightningWebClient(Activity activity) {
-            mActivity = context;
+            mActivity = activity;
         }
 
         @Override
@@ -932,10 +940,10 @@ public class LightningView {
 
     public class LightningChromeClient extends WebChromeClient {
 
-        final Context mActivity;
+        final Activity mActivity;
 
-        LightningChromeClient(Context context) {
+        LightningChromeClient(Activity activity) {
-            mActivity = context;
+            mActivity = activity;
         }
 
         @Override
@@ -969,6 +977,7 @@ public class LightningView {
         @Override
         public void onGeolocationPermissionsShowPrompt(final String origin,
                                                        final GeolocationPermissions.Callback callback) {
+            mPermissionsManager.requestPermissionsIfNecessary(mActivity, PERMISSIONS);
             final boolean remember = true;
             AlertDialog.Builder builder = new AlertDialog.Builder(mActivity);
             builder.setTitle(mActivity.getString(R.string.location));