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/*
* Copyright 2018 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 android.media.update;
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
/**
* Helper class for connecting the public API to an updatable implementation.
*
* @see ViewGroupProvider
*
* @hide
*/
public abstract class ViewGroupHelper<T extends ViewGroupProvider> extends ViewGroup {
/** @hide */
final public T mProvider;
/** @hide */
public ViewGroupHelper(ProviderCreator<T> creator,
Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
mProvider = creator.createProvider(this, new SuperProvider(),
new PrivateProvider());
}
/** @hide */
// TODO @SystemApi
public T getProvider() {
return mProvider;
}
@Override
protected void onAttachedToWindow() {
mProvider.onAttachedToWindow_impl();
}
@Override
protected void onDetachedFromWindow() {
mProvider.onDetachedFromWindow_impl();
}
@Override
public CharSequence getAccessibilityClassName() {
return mProvider.getAccessibilityClassName_impl();
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
return mProvider.onTouchEvent_impl(ev);
}
@Override
public boolean onTrackballEvent(MotionEvent ev) {
return mProvider.onTrackballEvent_impl(ev);
}
@Override
public void onFinishInflate() {
mProvider.onFinishInflate_impl();
}
@Override
public void setEnabled(boolean enabled) {
mProvider.setEnabled_impl(enabled);
}
@Override
public void onVisibilityAggregated(boolean isVisible) {
mProvider.onVisibilityAggregated_impl(isVisible);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
mProvider.onLayout_impl(changed, left, top, right, bottom);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
mProvider.onMeasure_impl(widthMeasureSpec, heightMeasureSpec);
}
@Override
protected int getSuggestedMinimumWidth() {
return mProvider.getSuggestedMinimumWidth_impl();
}
@Override
protected int getSuggestedMinimumHeight() {
return mProvider.getSuggestedMinimumHeight_impl();
}
// setMeasuredDimension is final
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
return mProvider.dispatchTouchEvent_impl(ev);
}
@Override
protected boolean checkLayoutParams(LayoutParams p) {
return mProvider.checkLayoutParams_impl(p);
}
@Override
protected LayoutParams generateDefaultLayoutParams() {
return mProvider.generateDefaultLayoutParams_impl();
}
@Override
public LayoutParams generateLayoutParams(AttributeSet attrs) {
return mProvider.generateLayoutParams_impl(attrs);
}
@Override
protected LayoutParams generateLayoutParams(LayoutParams lp) {
return mProvider.generateLayoutParams_impl(lp);
}
@Override
public boolean shouldDelayChildPressedState() {
return mProvider.shouldDelayChildPressedState_impl();
}
@Override
protected void measureChildWithMargins(View child, int parentWidthMeasureSpec, int widthUsed,
int parentHeightMeasureSpec, int heightUsed) {
mProvider.measureChildWithMargins_impl(child,
parentWidthMeasureSpec, widthUsed, parentHeightMeasureSpec, heightUsed);
}
/** @hide */
public class SuperProvider implements ViewGroupProvider {
@Override
public CharSequence getAccessibilityClassName_impl() {
return ViewGroupHelper.super.getAccessibilityClassName();
}
@Override
public boolean onTouchEvent_impl(MotionEvent ev) {
return ViewGroupHelper.super.onTouchEvent(ev);
}
@Override
public boolean onTrackballEvent_impl(MotionEvent ev) {
return ViewGroupHelper.super.onTrackballEvent(ev);
}
@Override
public void onFinishInflate_impl() {
ViewGroupHelper.super.onFinishInflate();
}
@Override
public void setEnabled_impl(boolean enabled) {
ViewGroupHelper.super.setEnabled(enabled);
}
@Override
public void onAttachedToWindow_impl() {
ViewGroupHelper.super.onAttachedToWindow();
}
@Override
public void onDetachedFromWindow_impl() {
ViewGroupHelper.super.onDetachedFromWindow();
}
@Override
public void onVisibilityAggregated_impl(boolean isVisible) {
ViewGroupHelper.super.onVisibilityAggregated(isVisible);
}
@Override
public void onLayout_impl(boolean changed, int left, int top, int right, int bottom) {
// abstract method; no super
}
@Override
public void onMeasure_impl(int widthMeasureSpec, int heightMeasureSpec) {
ViewGroupHelper.super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
public int getSuggestedMinimumWidth_impl() {
return ViewGroupHelper.super.getSuggestedMinimumWidth();
}
@Override
public int getSuggestedMinimumHeight_impl() {
return ViewGroupHelper.super.getSuggestedMinimumHeight();
}
@Override
public void setMeasuredDimension_impl(int measuredWidth, int measuredHeight) {
ViewGroupHelper.super.setMeasuredDimension(measuredWidth, measuredHeight);
}
@Override
public boolean dispatchTouchEvent_impl(MotionEvent ev) {
return ViewGroupHelper.super.dispatchTouchEvent(ev);
}
@Override
public boolean checkLayoutParams_impl(LayoutParams p) {
return ViewGroupHelper.super.checkLayoutParams(p);
}
@Override
public LayoutParams generateDefaultLayoutParams_impl() {
return ViewGroupHelper.super.generateDefaultLayoutParams();
}
@Override
public LayoutParams generateLayoutParams_impl(AttributeSet attrs) {
return ViewGroupHelper.super.generateLayoutParams(attrs);
}
@Override
public LayoutParams generateLayoutParams_impl(LayoutParams lp) {
return ViewGroupHelper.super.generateLayoutParams(lp);
}
@Override
public boolean shouldDelayChildPressedState_impl() {
return ViewGroupHelper.super.shouldDelayChildPressedState();
}
@Override
public void measureChildWithMargins_impl(View child,
int parentWidthMeasureSpec, int widthUsed,
int parentHeightMeasureSpec, int heightUsed) {
ViewGroupHelper.super.measureChildWithMargins(child,
parentWidthMeasureSpec, widthUsed, parentHeightMeasureSpec, heightUsed);
}
}
/** @hide */
public class PrivateProvider implements ViewGroupProvider {
@Override
public CharSequence getAccessibilityClassName_impl() {
return ViewGroupHelper.this.getAccessibilityClassName();
}
@Override
public boolean onTouchEvent_impl(MotionEvent ev) {
return ViewGroupHelper.this.onTouchEvent(ev);
}
@Override
public boolean onTrackballEvent_impl(MotionEvent ev) {
return ViewGroupHelper.this.onTrackballEvent(ev);
}
@Override
public void onFinishInflate_impl() {
ViewGroupHelper.this.onFinishInflate();
}
@Override
public void setEnabled_impl(boolean enabled) {
ViewGroupHelper.this.setEnabled(enabled);
}
@Override
public void onAttachedToWindow_impl() {
ViewGroupHelper.this.onAttachedToWindow();
}
@Override
public void onDetachedFromWindow_impl() {
ViewGroupHelper.this.onDetachedFromWindow();
}
@Override
public void onVisibilityAggregated_impl(boolean isVisible) {
ViewGroupHelper.this.onVisibilityAggregated(isVisible);
}
@Override
public void onLayout_impl(boolean changed, int left, int top, int right, int bottom) {
ViewGroupHelper.this.onLayout(changed, left, top, right, bottom);
}
@Override
public void onMeasure_impl(int widthMeasureSpec, int heightMeasureSpec) {
ViewGroupHelper.this.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
public int getSuggestedMinimumWidth_impl() {
return ViewGroupHelper.this.getSuggestedMinimumWidth();
}
@Override
public int getSuggestedMinimumHeight_impl() {
return ViewGroupHelper.this.getSuggestedMinimumHeight();
}
@Override
public void setMeasuredDimension_impl(int measuredWidth, int measuredHeight) {
ViewGroupHelper.this.setMeasuredDimension(measuredWidth, measuredHeight);
}
@Override
public boolean dispatchTouchEvent_impl(MotionEvent ev) {
return ViewGroupHelper.this.dispatchTouchEvent(ev);
}
@Override
public boolean checkLayoutParams_impl(LayoutParams p) {
return ViewGroupHelper.this.checkLayoutParams(p);
}
@Override
public LayoutParams generateDefaultLayoutParams_impl() {
return ViewGroupHelper.this.generateDefaultLayoutParams();
}
@Override
public LayoutParams generateLayoutParams_impl(AttributeSet attrs) {
return ViewGroupHelper.this.generateLayoutParams(attrs);
}
@Override
public LayoutParams generateLayoutParams_impl(LayoutParams lp) {
return ViewGroupHelper.this.generateLayoutParams(lp);
}
@Override
public boolean shouldDelayChildPressedState_impl() {
return ViewGroupHelper.this.shouldDelayChildPressedState();
}
@Override
public void measureChildWithMargins_impl(View child,
int parentWidthMeasureSpec, int widthUsed,
int parentHeightMeasureSpec, int heightUsed) {
ViewGroupHelper.this.measureChildWithMargins(child,
parentWidthMeasureSpec, widthUsed, parentHeightMeasureSpec, heightUsed);
}
}
/** @hide */
@FunctionalInterface
public interface ProviderCreator<T extends ViewGroupProvider> {
T createProvider(ViewGroupHelper<T> instance, ViewGroupProvider superProvider,
ViewGroupProvider privateProvider);
}
}
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