1 files changed, 121 insertions, 0 deletions
diff --git a/src/com/android/packageinstaller/permission/ui/handheld/PermissionsFrameFragment.java b/src/com/android/packageinstaller/permission/ui/handheld/PermissionsFrameFragment.java
new file mode 100644
index 00000000..e7f63b23
--- /dev/null
+++ b/src/com/android/packageinstaller/permission/ui/handheld/PermissionsFrameFragment.java
@@ -0,0 +1,121 @@
+/*
+ * 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.permission.ui.handheld;
+
+import android.os.Bundle;
+import android.preference.PreferenceFragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.animation.Animation;
+import android.view.animation.Animation.AnimationListener;
+import android.view.animation.AnimationUtils;
+import android.widget.ListView;
+import android.widget.TextView;
+import com.android.packageinstaller.R;
+
+public abstract class PermissionsFrameFragment extends PreferenceFragment {
+    private ViewGroup mPreferencesContainer;
+
+    private View mLoadingView;
+    private ViewGroup mPrefsView;
+    private boolean mIsLoading;
+
+    /**
+     * Returns the view group that holds the preferences objects. This will
+     * only be set after {@link #onCreateView} has been called.
+     */
+    protected final ViewGroup getPreferencesContainer() {
+        return mPreferencesContainer;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.permissions_frame, container,
+                        false);
+        mPrefsView = (ViewGroup) rootView.findViewById(R.id.prefs_container);
+        if (mPrefsView == null) {
+            mPrefsView = rootView;
+        }
+        mLoadingView = rootView.findViewById(R.id.loading_container);
+        mPreferencesContainer = (ViewGroup) super.onCreateView(
+                inflater, mPrefsView, savedInstanceState);
+        setLoading(mIsLoading, false, true /* force */);
+        mPrefsView.addView(mPreferencesContainer);
+        return rootView;
+    }
+
+    protected void setLoading(boolean loading, boolean animate) {
+        setLoading(loading, animate, false);
+    }
+
+    private void setLoading(boolean loading, boolean animate, boolean force) {
+        if (mIsLoading != loading || force) {
+            mIsLoading = loading;
+            if (getView() == null) {
+                // If there is no created view, there is no reason to animate.
+                animate = false;
+            }
+            if (mPrefsView != null) {
+                setViewShown(mPrefsView, !loading, animate);
+            }
+            if (mLoadingView != null) {
+                setViewShown(mLoadingView, loading, animate);
+            }
+        }
+    }
+
+    @Override
+    public ListView getListView() {
+        ListView listView = super.getListView();
+        if (listView.getEmptyView() == null) {
+            TextView emptyView = (TextView) getView().findViewById(R.id.no_permissions);
+            listView.setEmptyView(emptyView);
+        }
+        return listView;
+    }
+
+    private void setViewShown(final View view, boolean shown, boolean animate) {
+        if (animate) {
+            Animation animation = AnimationUtils.loadAnimation(getContext(),
+                    shown ? android.R.anim.fade_in : android.R.anim.fade_out);
+            if (shown) {
+                view.setVisibility(View.VISIBLE);
+            } else {
+                animation.setAnimationListener(new AnimationListener() {
+                    @Override
+                    public void onAnimationStart(Animation animation) {
+                    }
+
+                    @Override
+                    public void onAnimationRepeat(Animation animation) {
+                    }
+
+                    @Override
+                    public void onAnimationEnd(Animation animation) {
+                        view.setVisibility(View.INVISIBLE);
+                    }
+                });
+            }
+            view.startAnimation(animation);
+        } else {
+            view.clearAnimation();
+            view.setVisibility(shown ? View.VISIBLE : View.INVISIBLE);
+        }
+    }
+}