AppOpsService: Add MODE_ASK support to AppOps.

Add support for new mode(MODE_ASK) in AppOpsService to show a permission
dialog box to user to confirm user permission before allowing or ignoring
that operation.
All strict operations (defined in AppOpsManager) are going to be in
MODE_ASK by default.
Operations will be moved to MODE_ALLOWED or MODE_IGNORED according to
user's choice.

Change-Id: I1314125a2b8be558e422e4a9eea0ff066c21bf94

1 files changed, 82 insertions, 0 deletions

diff --git a/services/core/java/com/android/server/PermissionDialogReqQueue.java b/services/core/java/com/android/server/PermissionDialogReqQueue.java
new file mode 100644
index 0000000..ee94427
--- /dev/null
+++ b/services/core/java/com/android/server/PermissionDialogReqQueue.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Not a Contribution.
+ *
+ * Copyright (C) 2006 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.server;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class PermissionDialogReqQueue {
+    public PermissionDialog getDialog() {
+        return mDialog;
+    }
+
+    public void setDialog(PermissionDialog mDialog) {
+        this.mDialog = mDialog;
+    }
+
+    public final static class PermissionDialogReq {
+        public void set(int res) {
+            synchronized (this) {
+                mHasResult = true;
+                mResult = res;
+                notifyAll();
+            }
+        }
+
+        public int get() {
+            synchronized (this) {
+                while (!mHasResult) {
+                    try {
+                        wait();
+                    } catch (InterruptedException e) {
+                    }
+                }
+            }
+            return mResult;
+        }
+
+        boolean mHasResult = false;
+        int mResult;
+    }
+
+    private PermissionDialog mDialog;
+    private List<PermissionDialogReq> resultList;
+
+    public PermissionDialogReqQueue() {
+        mDialog = null;
+        resultList = new ArrayList<PermissionDialogReq>();
+    }
+
+    public void register(PermissionDialogReq res) {
+        synchronized (this) {
+            resultList.add(res);
+        }
+    }
+
+    public void notifyAll(int mode) {
+        synchronized (this) {
+            while (resultList.size() != 0) {
+                PermissionDialogReq res = resultList.get(0);
+                res.set(mode);
+                resultList.remove(0);
+            }
+        }
+    }
+}