Add conditionals to Settings

Also add Airplane Mode and Hotspot conditionals (more to come soon)

Change-Id: I11f206db59f7c715f416fb5852b8f0fcb857a247

src/com/android/settings/dashboard/conditional/HotspotCondition.java

@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.dashboard.conditional;
+
+import android.content.BroadcastReceiver;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.graphics.drawable.Icon;
+import android.net.wifi.WifiConfiguration;
+import android.net.wifi.WifiManager;
+import com.android.settings.R;
+import com.android.settings.TetherSettings;
+import com.android.settings.Utils;
+import com.android.settingslib.TetherUtil;
+
+public class HotspotCondition extends Condition {
+
+    private final WifiManager mWifiManager;
+
+    public HotspotCondition(ConditionManager manager) {
+        super(manager);
+        mWifiManager = mManager.getContext().getSystemService(WifiManager.class);
+    }
+
+    @Override
+    public void refreshState() {
+        boolean wifiTetherEnabled = TetherUtil.isWifiTetherEnabled(mManager.getContext());
+        setActive(wifiTetherEnabled);
+    }
+
+    @Override
+    protected void onSilenceChanged(boolean silenced) {
+        // Only need to listen for hotspot changes when hotspot has been silenced.
+        PackageManager pm = mManager.getContext().getPackageManager();
+        pm.setComponentEnabledSetting(new ComponentName(mManager.getContext(), Receiver.class),
+                silenced ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
+                        : PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
+                PackageManager.DONT_KILL_APP);
+    }
+
+    @Override
+    public Icon getIcon() {
+        return Icon.createWithResource(mManager.getContext(), R.drawable.ic_hotspot);
+    }
+
+    private String getSsid() {
+        WifiConfiguration wifiConfig = mWifiManager.getWifiApConfiguration();
+        if (wifiConfig == null) {
+            return mManager.getContext().getString(
+                    com.android.internal.R.string.wifi_tether_configure_ssid_default);
+        } else {
+            return wifiConfig.SSID;
+        }
+    }
+
+    @Override
+    public CharSequence getTitle() {
+        return mManager.getContext().getString(R.string.condition_hotspot_title);
+    }
+
+    @Override
+    public CharSequence getSummary() {
+        return mManager.getContext().getString(R.string.condition_hotspot_summary, getSsid());
+    }
+
+    @Override
+    public CharSequence[] getActions() {
+        return new CharSequence[] { mManager.getContext().getString(R.string.condition_turn_off) };
+    }
+
+    @Override
+    public void onPrimaryClick() {
+        Utils.startWithFragment(mManager.getContext(), TetherSettings.class.getName(), null, null,
+                0, R.string.tether_settings_title_all, null);
+    }
+
+    @Override
+    public void onActionClick(int index) {
+        if (index == 0) {
+            TetherUtil.setWifiTethering(false, mManager.getContext());
+            setActive(false);
+        } else {
+            throw new IllegalArgumentException("Unexpected index " + index);
+        }
+    }
+
+    public static class Receiver extends BroadcastReceiver {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (WifiManager.WIFI_AP_STATE_CHANGED_ACTION.equals(intent.getAction())) {
+                ConditionManager.get(context).getCondition(HotspotCondition.class)
+                        .refreshState();
+            }
+        }
+    }
+}