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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.printspooler.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.CompoundButton;
import android.widget.LinearLayout;
import com.android.printspooler.R;
/**
* This class represents the frame of page in the print preview list
* that contains the page and a footer.
*/
public final class PreviewPageFrame extends LinearLayout {
private final float mSelectedElevation;
private final float mNotSelectedElevation;
private final float mSelectedPageAlpha;
private final float mNotSelectedAlpha;
public PreviewPageFrame(Context context, AttributeSet attrs) {
super(context, attrs);
mSelectedElevation = mContext.getResources().getDimension(
R.dimen.selected_page_elevation);
mNotSelectedElevation = mContext.getResources().getDimension(
R.dimen.unselected_page_elevation);
mSelectedPageAlpha = mContext.getResources().getFraction(
R.fraction.page_selected_alpha, 1, 1);
mNotSelectedAlpha = mContext.getResources().getFraction(
R.fraction.page_unselected_alpha, 1, 1);
}
@Override
public CharSequence getAccessibilityClassName() {
return CompoundButton.class.getName();
}
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
super.onInitializeAccessibilityEvent(event);
event.setChecked(isSelected());
}
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setSelected(false);
info.setCheckable(true);
info.setChecked(isSelected());
}
public void setSelected(boolean selected, boolean animate) {
if (isSelected() == selected) {
return;
}
setSelected(selected);
if (selected) {
if (animate) {
animate().translationZ(mSelectedElevation)
.alpha(mSelectedPageAlpha);
} else {
setTranslationZ(mSelectedElevation);
setAlpha(mSelectedPageAlpha);
}
} else {
if (animate) {
animate().translationZ(mNotSelectedElevation)
.alpha(mNotSelectedAlpha);
} else {
setTranslationZ(mNotSelectedElevation);
setAlpha(mNotSelectedAlpha);
}
}
}
}
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