inline-ttl: save changes in ttl settings

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/SettingsCacheTTLFragment.java

@@ -19,10 +19,10 @@ package org.sufficientlysecure.keychain.ui;
 
 
 import java.util.ArrayList;
-import java.util.Collections;
 
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
@@ -37,6 +37,7 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.ui.util.Notify;
 import org.sufficientlysecure.keychain.ui.util.Notify.Style;
 import org.sufficientlysecure.keychain.ui.util.recyclerview.DividerItemDecoration;
+import org.sufficientlysecure.keychain.util.Preferences;
 import org.sufficientlysecure.keychain.util.Preferences.CacheTTLPrefs;
 
 
@@ -80,8 +81,13 @@ public class SettingsCacheTTLFragment extends Fragment {
 
     }
 
-    private void saveKeyserverList() {
+    private void savePreference() {
-        // Preferences.getPreferences(getActivity()).setKeyServers(servers);
+        FragmentActivity activity = getActivity();
+        if (activity == null) {
+            return;
+        }
+        CacheTTLPrefs prefs = mAdapter.getPrefs();
+        Preferences.getPreferences(activity).setPassphraseCacheTtl(prefs);
     }
 
     public class CacheTTLListAdapter extends RecyclerView.Adapter<CacheTTLListAdapter.ViewHolder> {
@@ -100,6 +106,20 @@ public class SettingsCacheTTLFragment extends Fragment {
 
         }
 
+        public CacheTTLPrefs getPrefs() {
+            ArrayList<String> ttls = new ArrayList<>();
+            int defaultTtl = 0;
+            for (int i = 0; i < mPositionIsChecked.size(); i++) {
+                if (mPositionIsChecked.get(i)) {
+                    ttls.add(Integer.toString(CacheTTLPrefs.CACHE_TTLS.get(i)));
+                    if (i == mDefaultPosition) {
+                        defaultTtl = CacheTTLPrefs.CACHE_TTLS.get(i);
+                    }
+                }
+            }
+            return new CacheTTLPrefs(ttls, defaultTtl);
+        }
+
         @Override
         public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
             View view = LayoutInflater.from(parent.getContext())
@@ -144,21 +164,28 @@ public class SettingsCacheTTLFragment extends Fragment {
                 boolean isDefault = position == mDefaultPosition;
 
                 mTitle.setText(CacheTTLPrefs.CACHE_TTL_NAMES.get(ttl));
-                mChecked.setChecked(isChecked);
+                // avoid some ui flicker by skipping unnecessary updates
+                if (mChecked.isChecked() != isChecked) {
+                    mChecked.setChecked(isChecked);
+                }
+                if (mIsDefault.isChecked() != isDefault) {
+                    mIsDefault.setChecked(isDefault);
+                }
                 mIsDefault.setEnabled(isChecked);
-                mIsDefault.setChecked(isDefault);
 
                 mChecked.setOnClickListener(new OnClickListener() {
                     @Override
                     public void onClick(View v) {
                         setTtlChecked(position);
+                        savePreference();
                     }
                 });
 
                 mIsDefault.setOnClickListener(!isChecked ? null : new OnClickListener() {
                     @Override
                     public void onClick(View v) {
-                        setDefault(position);
+                        setTtlDefault(position);
+                        savePreference();
                     }
                 });
 
@@ -191,7 +218,7 @@ public class SettingsCacheTTLFragment extends Fragment {
                 int i = mDefaultPosition;
                 while (--i >= 0) {
                     if (mPositionIsChecked.get(i)) {
-                        setDefault(i);
+                        setTtlDefault(i);
                         return;
                     }
                 }
@@ -200,7 +227,7 @@ public class SettingsCacheTTLFragment extends Fragment {
                 i = mDefaultPosition;
                 while (++i < mPositionIsChecked.size()) {
                     if (mPositionIsChecked.get(i)) {
-                        setDefault(i);
+                        setTtlDefault(i);
                         return;
                     }
                 }
@@ -210,7 +237,7 @@ public class SettingsCacheTTLFragment extends Fragment {
 
             }
 
-            private void setDefault(int position) {
+            private void setTtlDefault(int position) {
                 int previousDefaultPosition = mDefaultPosition;
                 mDefaultPosition = position;
                 notifyItemChanged(previousDefaultPosition);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/Preferences.java

@@ -98,21 +98,6 @@ public class Preferences {
         editor.commit();
     }
 
-    public CacheTTLPrefs getPassphraseCacheTtl() {
-        Set<String> pref = mSharedPreferences.getStringSet(Constants.Pref.PASSPHRASE_CACHE_TTLS, null);
-        if (pref == null) {
-            return CacheTTLPrefs.getDefault();
-        }
-        int def = mSharedPreferences.getInt(Pref.PASSPHRASE_CACHE_DEFAULT, 0);
-        return new CacheTTLPrefs(pref, def);
-    }
-
-    public void setPassphraseCacheTtl(int value) {
-        SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putInt(Constants.Pref.PASSPHRASE_CACHE_TTLS, value);
-        editor.commit();
-    }
-
     public boolean getPassphraseCacheSubs() {
         return mSharedPreferences.getBoolean(Pref.PASSPHRASE_CACHE_SUBS, false);
     }
@@ -315,6 +300,22 @@ public class Preferences {
 
     }
 
+    public CacheTTLPrefs getPassphraseCacheTtl() {
+        Set<String> pref = mSharedPreferences.getStringSet(Constants.Pref.PASSPHRASE_CACHE_TTLS, null);
+        if (pref == null) {
+            return CacheTTLPrefs.getDefault();
+        }
+        int def = mSharedPreferences.getInt(Pref.PASSPHRASE_CACHE_DEFAULT, 300);
+        return new CacheTTLPrefs(pref, def);
+    }
+
+    public void setPassphraseCacheTtl(CacheTTLPrefs prefs) {
+        SharedPreferences.Editor editor = mSharedPreferences.edit();
+        editor.putStringSet(Constants.Pref.PASSPHRASE_CACHE_TTLS, prefs.getStringSet());
+        editor.putInt(Pref.PASSPHRASE_CACHE_DEFAULT, prefs.defaultTtl);
+        editor.commit();
+    }
+
     public static class CacheTTLPrefs implements Serializable {
         public static final Map<Integer,Integer> CACHE_TTL_NAMES;
         public static final ArrayList<Integer> CACHE_TTLS;
@@ -331,7 +332,6 @@ public class Preferences {
             Collections.sort(CACHE_TTLS);
         }
 
-
         public HashSet<Integer> ttlTimes;
         public int defaultTtl;
 
@@ -343,6 +343,14 @@ public class Preferences {
             }
         }
 
+        public HashSet<String> getStringSet() {
+            HashSet<String> ttlTimeStrings = new HashSet<>();
+            for (Integer ttlTime : ttlTimes) {
+                ttlTimeStrings.add(Integer.toString(ttlTime));
+            }
+            return ttlTimeStrings;
+        }
+
         public static CacheTTLPrefs getDefault() {
             ArrayList<String> ttlStrings = new ArrayList<>();
             ttlStrings.add(Integer.toString(60 * 5));