/*
* Copyright (C) 2011 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.contacts.detail;
import android.view.View.OnClickListener;
/**
* This is implemented by {@link View}s that contain an alpha layer and touch interceptor layer.
* The alpha layer covers the entire fragment and has an alpha value which makes the fragment
* contents appear "dimmed" out. The touch interceptor layer covers the entire fragment so that
* when visible, it intercepts all touch events on the {@link View}.
*/
public interface ViewOverlay {
/**
* Sets the alpha value on the alpha layer (if there is one).
*/
public void setAlphaLayerValue(float alpha);
/**
* Makes the touch intercept layer on this fragment visible (if there is one). Also adds a click
* listener which is called when there is a touch event on the layer.
*/
public void enableTouchInterceptor(OnClickListener clickListener);
/**
* Makes the touch intercept layer on this fragment gone (if there is one).
*/
public void disableTouchInterceptor();
}