1 files changed, 149 insertions, 0 deletions
diff --git a/src/com/android/packageinstaller/util/Utils.java b/src/com/android/packageinstaller/util/Utils.java
new file mode 100644
index 00000000..f0d88d32
--- /dev/null
+++ b/src/com/android/packageinstaller/util/Utils.java
@@ -0,0 +1,149 @@
+/*
+ * 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.packageinstaller.util;
+
+import android.Manifest;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.content.res.Resources;
+import android.content.res.Resources.Theme;
+import android.graphics.drawable.Drawable;
+import android.util.ArraySet;
+import android.util.Log;
+import android.util.TypedValue;
+
+import com.android.packageinstaller.permission.model.AppPermissionGroup;
+import com.android.packageinstaller.permission.model.AppPermissions;
+import com.android.packageinstaller.permission.model.PermissionApps.PermissionApp;
+import com.android.packageinstaller.permission.utils.LocationUtils;
+
+import java.util.List;
+
+public class Utils {
+
+    private static final String LOG_TAG = "Utils";
+
+    public static final String OS_PKG = "android";
+
+    public static final String[] MODERN_PERMISSION_GROUPS = {
+            Manifest.permission_group.CALENDAR,
+            Manifest.permission_group.CAMERA,
+            Manifest.permission_group.CONTACTS,
+            Manifest.permission_group.LOCATION,
+            Manifest.permission_group.SENSORS,
+            Manifest.permission_group.SMS,
+            Manifest.permission_group.PHONE,
+            Manifest.permission_group.MICROPHONE,
+            Manifest.permission_group.STORAGE
+    };
+
+    private static final Intent LAUNCHER_INTENT = new Intent(Intent.ACTION_MAIN, null)
+                            .addCategory(Intent.CATEGORY_LAUNCHER);
+
+    private Utils() {
+        /* do nothing - hide constructor */
+    }
+
+    public static Drawable loadDrawable(PackageManager pm, String pkg, int resId) {
+        try {
+            return pm.getResourcesForApplication(pkg).getDrawable(resId, null);
+        } catch (Resources.NotFoundException | PackageManager.NameNotFoundException e) {
+            Log.d(LOG_TAG, "Couldn't get resource", e);
+            return null;
+        }
+    }
+
+    public static boolean isModernPermissionGroup(String name) {
+        for (String modernGroup : MODERN_PERMISSION_GROUPS) {
+            if (modernGroup.equals(name)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static boolean shouldShowPermission(AppPermissionGroup group, String packageName) {
+        // We currently will not show permissions fixed by the system.
+        // which is what the system does for system components.
+        if (group.isSystemFixed() && !LocationUtils.isLocationGroupAndProvider(
+                group.getName(), packageName)) {
+            return false;
+        }
+
+        final boolean isPlatformPermission = group.getDeclaringPackage().equals(OS_PKG);
+        // Show legacy permissions only if the user chose that.
+        if (isPlatformPermission
+                && !Utils.isModernPermissionGroup(group.getName())) {
+            return false;
+        }
+        return true;
+    }
+
+    public static boolean shouldShowPermission(PermissionApp app) {
+        // We currently will not show permissions fixed by the system
+        // which is what the system does for system components.
+        if (app.isSystemFixed() && !LocationUtils.isLocationGroupAndProvider(
+                app.getPermissionGroup().getName(), app.getPackageName())) {
+            return false;
+        }
+
+        return true;
+    }
+
+    public static Drawable applyTint(Context context, Drawable icon, int attr) {
+        Theme theme = context.getTheme();
+        TypedValue typedValue = new TypedValue();
+        theme.resolveAttribute(attr, typedValue, true);
+        icon = icon.mutate();
+        icon.setTint(context.getColor(typedValue.resourceId));
+        return icon;
+    }
+
+    public static Drawable applyTint(Context context, int iconResId, int attr) {
+        return applyTint(context, context.getDrawable(iconResId), attr);
+    }
+
+    public static ArraySet<String> getLauncherPackages(Context context) {
+        ArraySet<String> launcherPkgs = new ArraySet<>();
+        for (ResolveInfo info :
+            context.getPackageManager().queryIntentActivities(LAUNCHER_INTENT, 0)) {
+            launcherPkgs.add(info.activityInfo.packageName);
+        }
+
+        return launcherPkgs;
+    }
+
+    public static List<ApplicationInfo> getAllInstalledApplications(Context context) {
+        return context.getPackageManager().getInstalledApplications(0);
+    }
+
+    public static boolean isSystem(PermissionApp app, ArraySet<String> launcherPkgs) {
+        return isSystem(app.getAppInfo(), launcherPkgs);
+    }
+
+    public static boolean isSystem(AppPermissions app, ArraySet<String> launcherPkgs) {
+        return isSystem(app.getPackageInfo().applicationInfo, launcherPkgs);
+    }
+
+    public static boolean isSystem(ApplicationInfo info, ArraySet<String> launcherPkgs) {
+        return info.isSystemApp() && (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) == 0
+                && !launcherPkgs.contains(info.packageName);
+    }
+}