Themes: Let ThemeService handle all theme processing [3/3]

Change-Id: Ied877eb5f1e96774d2e415970034d0b892765134

1 files changed, 66 insertions, 0 deletions

diff --git a/src/org/cyanogenmod/themes/provider/PreferenceUtils.java b/src/org/cyanogenmod/themes/provider/PreferenceUtils.java
new file mode 100644
index 0000000..09d62bb
--- /dev/null
+++ b/src/org/cyanogenmod/themes/provider/PreferenceUtils.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2014 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 org.cyanogenmod.themes.provider;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class PreferenceUtils {
+    public static final String PREF_INSTALLED_THEMES_PROCESSING = "installed_themes_processing";
+
+    public static SharedPreferences getSharedPreferences(Context context) {
+        if (context == null) return null;
+        return context.getSharedPreferences(context.getPackageName(), Context.MODE_PRIVATE);
+    }
+
+    public static Set<String> getInstalledThemesBeingProcessed(Context context) {
+        SharedPreferences prefs = getSharedPreferences(context);
+        if (prefs == null) return null;
+
+        return prefs.getStringSet(PREF_INSTALLED_THEMES_PROCESSING, null);
+    }
+
+    public static void addThemeBeingProcessed(Context context, String pkgName) {
+        SharedPreferences prefs = getSharedPreferences(context);
+        if (prefs != null) {
+            Set<String> updatedThemes = new HashSet<String>();
+            Set<String> current = prefs.getStringSet(PREF_INSTALLED_THEMES_PROCESSING, null);
+            if (current != null) {
+                updatedThemes.addAll(current);
+            }
+            if (updatedThemes.add(pkgName)) {
+                prefs.edit().putStringSet(PREF_INSTALLED_THEMES_PROCESSING, updatedThemes).apply();
+            }
+        }
+    }
+
+    public static void removeThemeBeingProcessed(Context context, String pkgName) {
+        SharedPreferences prefs = getSharedPreferences(context);
+        if (prefs != null) {
+            Set<String> updatedThemes = new HashSet<String>();
+            Set<String> current = prefs.getStringSet(PREF_INSTALLED_THEMES_PROCESSING, null);
+            if (current != null) {
+                updatedThemes.addAll(current);
+            }
+            if (updatedThemes.remove(pkgName)) {
+                prefs.edit().putStringSet(PREF_INSTALLED_THEMES_PROCESSING, updatedThemes).apply();
+            }
+        }
+    }
+}