Settings: External automatic rule settings.

 - Add external automatic rule settings page with the common
   settings for all rules (enabled, name, zen mode).
 - Pull common rule-instance settings into settings base class, share
   with existing schedule rule settings.
 - New page not searchable since it is at the rule-instance level.
 - Obtain external rule information from existing conditions provider
   metadata.  Includes rule type caption, sub-configuration activity,
   and default condition id.
 - If external condition providers exist with the appropriate metadata,
   display the external rule types as options in the new rule dialog.
   (max of 3 external types)
 - Pull common managed service listing code out of common settings base
   class and into a more reusable helper class.

Bug: 20064962
Change-Id: Ibc13607490b7312a7d9f7f3bd61c3cfcf71a2794

1 files changed, 61 insertions, 172 deletions

diff --git a/src/com/android/settings/notification/ManagedServiceSettings.java b/src/com/android/settings/notification/ManagedServiceSettings.java
index 7be644e..cc9e734 100644
--- a/src/com/android/settings/notification/ManagedServiceSettings.java
+++ b/src/com/android/settings/notification/ManagedServiceSettings.java
@@ -16,28 +16,17 @@
 
 package com.android.settings.notification;
 
-import android.app.ActivityManager;
 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.DialogFragment;
 import android.app.ListFragment;
-import android.content.BroadcastReceiver;
 import android.content.ComponentName;
-import android.content.ContentResolver;
 import android.content.Context;
 import android.content.DialogInterface;
-import android.content.Intent;
-import android.content.IntentFilter;
 import android.content.pm.PackageItemInfo;
 import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
-import android.database.ContentObserver;
-import android.net.Uri;
 import android.os.Bundle;
-import android.os.Handler;
-import android.provider.Settings;
-import android.util.Slog;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -49,17 +38,15 @@ import android.widget.TextView;
 
 import com.android.settings.R;
 
-import java.util.HashSet;
 import java.util.List;
 
 public abstract class ManagedServiceSettings extends ListFragment {
     private static final boolean SHOW_PACKAGE_NAME = false;
 
     private final Config mConfig;
-    private PackageManager mPM;
-    private ContentResolver mCR;
 
-    private final HashSet<ComponentName> mEnabledServices = new HashSet<ComponentName>();
+    private PackageManager mPM;
+    private ServiceListing mServiceListing;
     private ServiceListAdapter mListAdapter;
 
     abstract protected Config getConfig();
@@ -68,68 +55,18 @@ public abstract class ManagedServiceSettings extends ListFragment {
         mConfig = getConfig();
     }
 
-    private final ContentObserver mSettingsObserver = new ContentObserver(new Handler()) {
-        @Override
-        public void onChange(boolean selfChange, Uri uri) {
-            updateList();
-        }
-    };
-
-    private final BroadcastReceiver mPackageReceiver = new BroadcastReceiver() {
-        @Override
-        public void onReceive(Context context, Intent intent) {
-            updateList();
-        }
-    };
-
-    public class ScaryWarningDialogFragment extends DialogFragment {
-        static final String KEY_COMPONENT = "c";
-        static final String KEY_LABEL = "l";
-
-        public ScaryWarningDialogFragment setServiceInfo(ComponentName cn, String label) {
-            Bundle args = new Bundle();
-            args.putString(KEY_COMPONENT, cn.flattenToString());
-            args.putString(KEY_LABEL, label);
-            setArguments(args);
-            return this;
-        }
-
-        @Override
-        public Dialog onCreateDialog(Bundle savedInstanceState) {
-            super.onCreate(savedInstanceState);
-            final Bundle args = getArguments();
-            final String label = args.getString(KEY_LABEL);
-            final ComponentName cn = ComponentName.unflattenFromString(args.getString(KEY_COMPONENT));
-
-            final String title = getResources().getString(mConfig.warningDialogTitle, label);
-            final String summary = getResources().getString(mConfig.warningDialogSummary, label);
-            return new AlertDialog.Builder(getActivity())
-                    .setMessage(summary)
-                    .setTitle(title)
-                    .setCancelable(true)
-                    .setPositiveButton(android.R.string.ok,
-                            new DialogInterface.OnClickListener() {
-                                public void onClick(DialogInterface dialog, int id) {
-                                    mEnabledServices.add(cn);
-                                    saveEnabledServices();
-                                }
-                            })
-                    .setNegativeButton(android.R.string.cancel,
-                            new DialogInterface.OnClickListener() {
-                                public void onClick(DialogInterface dialog, int id) {
-                                    // pass
-                                }
-                            })
-                    .create();
-        }
-    }
-
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
 
         mPM = getActivity().getPackageManager();
-        mCR = getActivity().getContentResolver();
+        mServiceListing = new ServiceListing(getActivity(), mConfig);
+        mServiceListing.addCallback(new ServiceListing.Callback() {
+            @Override
+            public void onServicesReloaded(List<ServiceInfo> services) {
+                updateList(services);
+            }
+        });
         mListAdapter = new ServiceListAdapter(getActivity());
     }
 
@@ -145,122 +82,31 @@ public abstract class ManagedServiceSettings extends ListFragment {
     @Override
     public void onResume() {
         super.onResume();
-        updateList();
-
-        // listen for package changes
-        IntentFilter filter = new IntentFilter();
-        filter.addAction(Intent.ACTION_PACKAGE_ADDED);
-        filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
-        filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
-        filter.addAction(Intent.ACTION_PACKAGE_REPLACED);
-        filter.addDataScheme("package");
-        getActivity().registerReceiver(mPackageReceiver, filter);
-
-        mCR.registerContentObserver(Settings.Secure.getUriFor(mConfig.setting),
-                false, mSettingsObserver);
+        mServiceListing.reload();
+        mServiceListing.setListening(true);
     }
 
     @Override
     public void onPause() {
         super.onPause();
-
-        getActivity().unregisterReceiver(mPackageReceiver);
-        mCR.unregisterContentObserver(mSettingsObserver);
-    }
-
-    private void loadEnabledServices() {
-        mEnabledServices.clear();
-        final String flat = Settings.Secure.getString(mCR, mConfig.setting);
-        if (flat != null && !"".equals(flat)) {
-            final String[] names = flat.split(":");
-            for (int i = 0; i < names.length; i++) {
-                final ComponentName cn = ComponentName.unflattenFromString(names[i]);
-                if (cn != null) {
-                    mEnabledServices.add(cn);
-                }
-            }
-        }
-    }
-
-    private void saveEnabledServices() {
-        StringBuilder sb = null;
-        for (ComponentName cn : mEnabledServices) {
-            if (sb == null) {
-                sb = new StringBuilder();
-            } else {
-                sb.append(':');
-            }
-            sb.append(cn.flattenToString());
-        }
-        Settings.Secure.putString(mCR,
-                mConfig.setting,
-                sb != null ? sb.toString() : "");
+        mServiceListing.setListening(false);
     }
 
-    private void updateList() {
-        loadEnabledServices();
-
-        getServices(mConfig, mListAdapter, mPM);
+    private void updateList(List<ServiceInfo> services) {
+        mListAdapter.clear();
+        mListAdapter.addAll(services);
         mListAdapter.sort(new PackageItemInfo.DisplayNameComparator(mPM));
 
         getListView().setAdapter(mListAdapter);
     }
 
-    protected static int getEnabledServicesCount(Config config, Context context) {
-        final String flat = Settings.Secure.getString(context.getContentResolver(), config.setting);
-        if (flat == null || "".equals(flat)) return 0;
-        final String[] components = flat.split(":");
-        return components.length;
-    }
-
-    protected static int getServicesCount(Config c, PackageManager pm) {
-        return getServices(c, null, pm);
-    }
-
-    private static int getServices(Config c, ArrayAdapter<ServiceInfo> adapter, PackageManager pm) {
-        int services = 0;
-        if (adapter != null) {
-            adapter.clear();
-        }
-        final int user = ActivityManager.getCurrentUser();
-
-        List<ResolveInfo> installedServices = pm.queryIntentServicesAsUser(
-                new Intent(c.intentAction),
-                PackageManager.GET_SERVICES | PackageManager.GET_META_DATA,
-                user);
-
-        for (int i = 0, count = installedServices.size(); i < count; i++) {
-            ResolveInfo resolveInfo = installedServices.get(i);
-            ServiceInfo info = resolveInfo.serviceInfo;
-
-            if (!c.permission.equals(info.permission)) {
-                Slog.w(c.tag, "Skipping " + c.noun + " service "
-                        + info.packageName + "/" + info.name
-                        + ": it does not require the permission "
-                        + c.permission);
-                continue;
-            }
-            if (adapter != null) {
-                adapter.add(info);
-            }
-            services++;
-        }
-        return services;
-    }
-
-    private boolean isServiceEnabled(ServiceInfo info) {
-        final ComponentName cn = new ComponentName(info.packageName, info.name);
-        return mEnabledServices.contains(cn);
-    }
-
     @Override
     public void onListItemClick(ListView l, View v, int position, long id) {
         ServiceInfo info = mListAdapter.getItem(position);
         final ComponentName cn = new ComponentName(info.packageName, info.name);
-        if (mEnabledServices.contains(cn)) {
+        if (mServiceListing.isEnabled(cn)) {
             // the simple version: disabling
-            mEnabledServices.remove(cn);
-            saveEnabledServices();
+            mServiceListing.setEnabled(cn, false);
         } else {
             // show a scary dialog
             new ScaryWarningDialogFragment()
@@ -269,6 +115,48 @@ public abstract class ManagedServiceSettings extends ListFragment {
         }
     }
 
+    public class ScaryWarningDialogFragment extends DialogFragment {
+        static final String KEY_COMPONENT = "c";
+        static final String KEY_LABEL = "l";
+
+        public ScaryWarningDialogFragment setServiceInfo(ComponentName cn, String label) {
+            Bundle args = new Bundle();
+            args.putString(KEY_COMPONENT, cn.flattenToString());
+            args.putString(KEY_LABEL, label);
+            setArguments(args);
+            return this;
+        }
+
+        @Override
+        public Dialog onCreateDialog(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            final Bundle args = getArguments();
+            final String label = args.getString(KEY_LABEL);
+            final ComponentName cn = ComponentName.unflattenFromString(args
+                    .getString(KEY_COMPONENT));
+
+            final String title = getResources().getString(mConfig.warningDialogTitle, label);
+            final String summary = getResources().getString(mConfig.warningDialogSummary, label);
+            return new AlertDialog.Builder(getActivity())
+                    .setMessage(summary)
+                    .setTitle(title)
+                    .setCancelable(true)
+                    .setPositiveButton(android.R.string.ok,
+                            new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int id) {
+                                    mServiceListing.setEnabled(cn, true);
+                                }
+                            })
+                    .setNegativeButton(android.R.string.cancel,
+                            new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int id) {
+                                    // pass
+                                }
+                            })
+                    .create();
+        }
+    }
+
     private static class ViewHolder {
         ImageView icon;
         TextView name;
@@ -327,7 +215,8 @@ public abstract class ManagedServiceSettings extends ListFragment {
             } else {
                 vh.description.setVisibility(View.GONE);
             }
-            vh.checkbox.setChecked(isServiceEnabled(info));
+            final ComponentName cn = new ComponentName(info.packageName, info.name);
+            vh.checkbox.setChecked(mServiceListing.isEnabled(cn));
         }
     }