LockClock : Add external facing permission grant activity

Needed by SystemUI when toggling status bar weather.
CYNGNOS-2222
Change-Id: I693938fcc87f12d77f8e9245dfb8456925103797

2 files changed, 81 insertions, 0 deletions

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index c15f9de..5b75d91 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -71,6 +71,12 @@
             android:taskAffinity=""
             android:excludeFromRecents="true" />
 
+        <activity android:name=".weather.PermissionRequestActivity"
+            android:theme="@android:style/Theme.Translucent.NoTitleBar"
+            android:excludeFromRecents="true"
+            android:noHistory="true"
+            android:exported="true" />
+
         <!-- The Widget receiver -->
         <receiver android:name=".ClockWidgetProvider" >
             <meta-data android:name="android.appwidget.provider" android:resource="@xml/lock_clock" />
diff --git a/src/com/cyanogenmod/lockclock/weather/PermissionRequestActivity.java b/src/com/cyanogenmod/lockclock/weather/PermissionRequestActivity.java
new file mode 100644
index 0000000..0cf7be8
--- /dev/null
+++ b/src/com/cyanogenmod/lockclock/weather/PermissionRequestActivity.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod 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.cyanogenmod.lockclock.weather;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.os.ResultReceiver;
+
+public class PermissionRequestActivity extends Activity {
+
+    private static final String RESULT_RECEIVER_EXTRA = "result_receiver";
+    private static final int LOCATION_PERMISSION_REQUEST_CODE = 1;
+
+    private ResultReceiver mResultReceiver;
+    private int mResult = RESULT_CANCELED;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (hasLocationPermission()) {
+            finish();
+            return;
+        }
+
+        mResultReceiver = getIntent().getParcelableExtra(RESULT_RECEIVER_EXTRA);
+        if (mResultReceiver == null) {
+            finish();
+            return;
+        }
+
+        String[] permissions = new String[]{Manifest.permission.ACCESS_COARSE_LOCATION};
+        requestPermissions(permissions, LOCATION_PERMISSION_REQUEST_CODE);
+    }
+
+    public boolean hasLocationPermission() {
+        return checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION)
+                == PackageManager.PERMISSION_GRANTED;
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions,
+                                           int[] grantResults) {
+        if (requestCode == LOCATION_PERMISSION_REQUEST_CODE) {
+            if (grantResults.length > 0
+                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                mResult = RESULT_OK;
+            }
+        }
+        finish();
+    }
+
+    @Override
+    public void finish() {
+        if (mResultReceiver != null) {
+            mResultReceiver.send(mResult, null);
+        }
+        super.finish();
+    }
+}