1 files changed, 83 insertions, 0 deletions
diff --git a/src/com/android/launcher3/ProtectedComponentsHelper.java b/src/com/android/launcher3/ProtectedComponentsHelper.java
new file mode 100644
index 000000000..12ec96da4
--- /dev/null
+++ b/src/com/android/launcher3/ProtectedComponentsHelper.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2015 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.android.launcher3;
+
+import android.content.ComponentName;
+import android.content.Context;
+import cyanogenmod.providers.CMSettings;
+
+import java.util.ArrayList;
+
+public class ProtectedComponentsHelper {
+    private static final int FILTER_APPS_SYSTEM_FLAG = 1;
+    private static final int FILTER_APPS_DOWNLOADED_FLAG = 2;
+    private static int sFilterApps = FILTER_APPS_SYSTEM_FLAG | FILTER_APPS_DOWNLOADED_FLAG;
+
+    private static ArrayList<ComponentName> sProtectedApps = new ArrayList<ComponentName>();
+    private static ArrayList<String> sProtectedPackages = new ArrayList<String>();
+
+    /**
+     * Gets the list of protected components from {@link CMSettings} and updates the existing list
+     * of protected apps and packages
+     * @param context Context
+     */
+    public static void updateProtectedComponentsLists(Context context) {
+        String protectedComponents = CMSettings.Secure.getString(context.getContentResolver(),
+                CMSettings.Secure.PROTECTED_COMPONENTS);
+        protectedComponents = protectedComponents == null ? "" : protectedComponents;
+        String [] flattened = protectedComponents.split("\\|");
+        sProtectedApps = new ArrayList<ComponentName>(flattened.length);
+        sProtectedPackages = new ArrayList<String>(flattened.length);
+        for (String flat : flattened) {
+            ComponentName cmp = ComponentName.unflattenFromString(flat);
+            if (cmp != null) {
+                sProtectedApps.add(cmp);
+                sProtectedPackages.add(cmp.getPackageName());
+            }
+        }
+    }
+
+    /**
+     * Checks if the given combination of {@link ComponentName} and flags is for a protected app
+     */
+    public static boolean isProtectedApp(int flags, ComponentName componentName) {
+        boolean system = isSystemFlag(flags);
+        return sProtectedApps.contains(componentName) || (system && !getShowSystemApps()) ||
+                (!system && !getShowDownloadedApps());
+    }
+
+    /**
+     * Checks if the given combination of package name and flags is for a protected package
+     */
+    public static boolean isProtectedPackage(int flags, String packageName) {
+        boolean system = isSystemFlag(flags);
+        return (sProtectedPackages.contains(packageName) || (system && !getShowSystemApps()) ||
+                (!system && !getShowDownloadedApps()));
+    }
+
+    private static boolean isSystemFlag(int flags) {
+        return (flags & AppInfo.DOWNLOADED_FLAG) == 0;
+    }
+
+    private static boolean getShowSystemApps() {
+        return (sFilterApps & FILTER_APPS_SYSTEM_FLAG) != 0;
+    }
+
+    private static boolean getShowDownloadedApps() {
+        return (sFilterApps & FILTER_APPS_DOWNLOADED_FLAG) != 0;
+    }
+}