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/*
* Copyright (C) 2014 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.systemui.statusbar;
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.View;
import com.android.systemui.R;
/**
* A frame layout containing the actual payload of the notification, including the contracted and
* expanded layout. This class is responsible for clipping the content and and switching between the
* expanded and contracted view depending on its clipped size.
*/
public class NotificationContentView extends ExpandableView {
private final Rect mClipBounds = new Rect();
private View mContractedChild;
private View mExpandedChild;
private int mSmallHeight;
public NotificationContentView(Context context, AttributeSet attrs) {
super(context, attrs);
mSmallHeight = getResources().getDimensionPixelSize(R.dimen.notification_min_height);
mActualHeight = mSmallHeight;
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
updateClipping();
}
public void setContractedChild(View child) {
if (mContractedChild != null) {
removeView(mContractedChild);
}
sanitizeContractedLayoutParams(child);
addView(child);
mContractedChild = child;
selectLayout();
}
public void setExpandedChild(View child) {
if (mExpandedChild != null) {
removeView(mExpandedChild);
}
addView(child);
mExpandedChild = child;
selectLayout();
}
@Override
public void setActualHeight(int actualHeight, boolean notifyListeners) {
super.setActualHeight(actualHeight, notifyListeners);
selectLayout();
updateClipping();
}
@Override
public int getMaxHeight() {
// The maximum height is just the laid out height.
return getHeight();
}
@Override
public int getMinHeight() {
return mSmallHeight;
}
@Override
public void setClipTopAmount(int clipTopAmount) {
super.setClipTopAmount(clipTopAmount);
updateClipping();
}
private void updateClipping() {
mClipBounds.set(0, mClipTopAmount, getWidth(), mActualHeight);
setClipBounds(mClipBounds);
}
private void sanitizeContractedLayoutParams(View contractedChild) {
LayoutParams lp = (LayoutParams) contractedChild.getLayoutParams();
lp.height = mSmallHeight;
contractedChild.setLayoutParams(lp);
}
private void selectLayout() {
if (mActualHeight <= mSmallHeight || mExpandedChild == null) {
if (mContractedChild.getVisibility() != View.VISIBLE) {
mContractedChild.setVisibility(View.VISIBLE);
}
if (mExpandedChild != null && mExpandedChild.getVisibility() != View.INVISIBLE) {
mExpandedChild.setVisibility(View.INVISIBLE);
}
} else {
if (mExpandedChild.getVisibility() != View.VISIBLE) {
mExpandedChild.setVisibility(View.VISIBLE);
}
if (mContractedChild.getVisibility() != View.INVISIBLE) {
mContractedChild.setVisibility(View.INVISIBLE);
}
}
}
public void notifyContentUpdated() {
selectLayout();
}
@Override
public boolean isContentExpandable() {
return mExpandedChild != null;
}
}
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