Revert "Revert "Slices permission model""

This reverts commit 1214c878a839d99b1b29c8c31fc93af2ba949338.

Test: boot device
Bug: 72270082
Bug: 68751119
Change-Id: I7d0e709a04ffeb8b877aef539a978ee251a75742
diff --git a/packages/SystemUI/src/com/android/systemui/SlicePermissionActivity.java b/packages/SystemUI/src/com/android/systemui/SlicePermissionActivity.java
new file mode 100644
index 0000000..302face
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/SlicePermissionActivity.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2018 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.systemui;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.slice.SliceManager;
+import android.app.slice.SliceProvider;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.content.DialogInterface.OnDismissListener;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+import android.widget.CheckBox;
+import android.widget.TextView;
+
+public class SlicePermissionActivity extends Activity implements OnClickListener,
+        OnDismissListener {
+
+    private static final String TAG = "SlicePermissionActivity";
+
+    private CheckBox mAllCheckbox;
+
+    private Uri mUri;
+    private String mCallingPkg;
+    private String mProviderPkg;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        mUri = getIntent().getParcelableExtra(SliceProvider.EXTRA_BIND_URI);
+        mCallingPkg = getIntent().getStringExtra(SliceProvider.EXTRA_PKG);
+        mProviderPkg = getIntent().getStringExtra(SliceProvider.EXTRA_PROVIDER_PKG);
+
+        try {
+            PackageManager pm = getPackageManager();
+            CharSequence app1 = pm.getApplicationInfo(mCallingPkg, 0).loadLabel(pm);
+            CharSequence app2 = pm.getApplicationInfo(mProviderPkg, 0).loadLabel(pm);
+            AlertDialog dialog = new AlertDialog.Builder(this)
+                    .setTitle(getString(R.string.slice_permission_title, app1, app2))
+                    .setView(R.layout.slice_permission_request)
+                    .setNegativeButton(R.string.slice_permission_deny, this)
+                    .setPositiveButton(R.string.slice_permission_allow, this)
+                    .setOnDismissListener(this)
+                    .show();
+            TextView t1 = dialog.getWindow().getDecorView().findViewById(R.id.text1);
+            t1.setText(getString(R.string.slice_permission_text_1, app2));
+            TextView t2 = dialog.getWindow().getDecorView().findViewById(R.id.text2);
+            t2.setText(getString(R.string.slice_permission_text_2, app2));
+            mAllCheckbox = dialog.getWindow().getDecorView().findViewById(
+                    R.id.slice_permission_checkbox);
+            mAllCheckbox.setText(getString(R.string.slice_permission_checkbox, app1));
+        } catch (NameNotFoundException e) {
+            Log.e(TAG, "Couldn't find package", e);
+            finish();
+        }
+    }
+
+    @Override
+    public void onClick(DialogInterface dialog, int which) {
+        if (which == DialogInterface.BUTTON_POSITIVE) {
+            getSystemService(SliceManager.class).grantPermissionFromUser(mUri, mCallingPkg,
+                    mAllCheckbox.isChecked());
+        }
+        finish();
+    }
+
+    @Override
+    public void onDismiss(DialogInterface dialog) {
+        finish();
+    }
+}