1 files changed, 81 insertions, 0 deletions
diff --git a/src/com/android/launcher3/util/ComponentKey.java b/src/com/android/launcher3/util/ComponentKey.java
new file mode 100644
index 000000000..6a7df4318
--- /dev/null
+++ b/src/com/android/launcher3/util/ComponentKey.java
@@ -0,0 +1,81 @@
+package com.android.launcher3.util;
+
+/**
+ * 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.
+ */
+
+import android.content.ComponentName;
+import android.content.Context;
+import com.android.launcher3.compat.UserHandleCompat;
+import com.android.launcher3.compat.UserManagerCompat;
+
+import java.util.Arrays;
+
+public class ComponentKey {
+
+    public final ComponentName componentName;
+    public final UserHandleCompat user;
+
+    private final int mHashCode;
+
+    public ComponentKey(ComponentName componentName, UserHandleCompat user) {
+        assert (componentName != null);
+        assert (user != null);
+        this.componentName = componentName;
+        this.user = user;
+        mHashCode = Arrays.hashCode(new Object[] {componentName, user});
+
+    }
+
+    /**
+     * Creates a new component key from an encoded component key string in the form of
+     * [flattenedComponentString#userId].  If the userId is not present, then it defaults
+     * to the current user.
+     */
+    public ComponentKey(Context context, String componentKeyStr) {
+        int userDelimiterIndex = componentKeyStr.indexOf("#");
+        if (userDelimiterIndex != -1) {
+            String componentStr = componentKeyStr.substring(0, userDelimiterIndex);
+            Long componentUser = Long.valueOf(componentKeyStr.substring(userDelimiterIndex + 1));
+            componentName = ComponentName.unflattenFromString(componentStr);
+            user = UserManagerCompat.getInstance(context)
+                    .getUserForSerialNumber(componentUser.longValue());
+        } else {
+            // No user provided, default to the current user
+            componentName = ComponentName.unflattenFromString(componentKeyStr);
+            user = UserHandleCompat.myUserHandle();
+        }
+        mHashCode = Arrays.hashCode(new Object[] {componentName, user});
+    }
+
+    /**
+     * Encodes a component key as a string of the form [flattenedComponentString#userId].
+     */
+    public String flattenToString(Context context) {
+        return componentName.flattenToString() + "#" +
+                UserManagerCompat.getInstance(context).getSerialNumberForUser(user);
+    }
+
+    @Override
+    public int hashCode() {
+        return mHashCode;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        ComponentKey other = (ComponentKey) o;
+        return other.componentName.equals(componentName) && other.user.equals(user);
+    }
+}
+\ No newline at end of file