1 files changed, 54 insertions, 0 deletions
diff --git a/java/com/android/incallui/baseui/Presenter.java b/java/com/android/incallui/baseui/Presenter.java
new file mode 100644
index 000000000..581ad47c7
--- /dev/null
+++ b/java/com/android/incallui/baseui/Presenter.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2013 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.incallui.baseui;
+
+import android.os.Bundle;
+
+/** Base class for Presenters. */
+public abstract class Presenter<U extends Ui> {
+
+  private U mUi;
+
+  /**
+   * Called after the UI view has been created. That is when fragment.onViewCreated() is called.
+   *
+   * @param ui The Ui implementation that is now ready to be used.
+   */
+  public void onUiReady(U ui) {
+    mUi = ui;
+  }
+
+  /** Called when the UI view is destroyed in Fragment.onDestroyView(). */
+  public final void onUiDestroy(U ui) {
+    onUiUnready(ui);
+    mUi = null;
+  }
+
+  /**
+   * To be overriden by Presenter implementations. Called when the fragment is being destroyed but
+   * before ui is set to null.
+   */
+  public void onUiUnready(U ui) {}
+
+  public void onSaveInstanceState(Bundle outState) {}
+
+  public void onRestoreInstanceState(Bundle savedInstanceState) {}
+
+  public U getUi() {
+    return mUi;
+  }
+}