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/*
* Copyright (C) 2017 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.google.android.setupdesign.items;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.TypedArray;
import android.graphics.PorterDuff.Mode;
import android.graphics.drawable.Drawable;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import androidx.core.view.AccessibilityDelegateCompat;
import androidx.core.view.ViewCompat;
import androidx.core.view.accessibility.AccessibilityNodeInfoCompat;
import androidx.core.view.accessibility.AccessibilityNodeInfoCompat.AccessibilityActionCompat;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.TextView;
import com.google.android.setupdesign.R;
import com.google.android.setupdesign.util.LayoutStyler;
import com.google.android.setupdesign.view.CheckableLinearLayout;
/**
* A switch item which is divided into two parts: the start (left for LTR) side shows the title and
* summary, and when that is clicked, will expand to show a longer summary. The end (right for LTR)
* side is a switch which can be toggled by the user.
*
* <p>Note: It is highly recommended to use this item with recycler view rather than list view,
* because list view draws the touch ripple effect on top of the item, rather than letting the item
* handle it. Therefore you might see a double-ripple, one for the expandable area and one for the
* entire list item, when using this in list view.
*/
public class ExpandableSwitchItem extends SwitchItem
implements OnCheckedChangeListener, OnClickListener {
private CharSequence collapsedSummary;
private CharSequence expandedSummary;
private boolean isExpanded = false;
private final AccessibilityDelegateCompat accessibilityDelegate =
new AccessibilityDelegateCompat() {
@Override
public void onInitializeAccessibilityNodeInfo(
View view, AccessibilityNodeInfoCompat nodeInfo) {
super.onInitializeAccessibilityNodeInfo(view, nodeInfo);
nodeInfo.addAction(
isExpanded()
? AccessibilityActionCompat.ACTION_COLLAPSE
: AccessibilityActionCompat.ACTION_EXPAND);
}
@Override
public boolean performAccessibilityAction(View view, int action, Bundle args) {
boolean result;
switch (action) {
case AccessibilityNodeInfoCompat.ACTION_COLLAPSE:
case AccessibilityNodeInfoCompat.ACTION_EXPAND:
setExpanded(!isExpanded());
result = true;
break;
default:
result = super.performAccessibilityAction(view, action, args);
break;
}
return result;
}
};
public ExpandableSwitchItem() {
super();
setIconGravity(Gravity.TOP);
}
public ExpandableSwitchItem(Context context, AttributeSet attrs) {
super(context, attrs);
final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SudExpandableSwitchItem);
collapsedSummary = a.getText(R.styleable.SudExpandableSwitchItem_sudCollapsedSummary);
expandedSummary = a.getText(R.styleable.SudExpandableSwitchItem_sudExpandedSummary);
setIconGravity(a.getInt(R.styleable.SudItem_sudIconGravity, Gravity.TOP));
a.recycle();
}
@Override
protected int getDefaultLayoutResource() {
return R.layout.sud_items_expandable_switch;
}
@Override
public CharSequence getSummary() {
return isExpanded ? getExpandedSummary() : getCollapsedSummary();
}
/** @return True if the item is currently expanded. */
public boolean isExpanded() {
return isExpanded;
}
/** Sets whether the item should be expanded. */
public void setExpanded(boolean expanded) {
if (isExpanded == expanded) {
return;
}
isExpanded = expanded;
notifyItemChanged();
}
/** @return The summary shown when in collapsed state. */
public CharSequence getCollapsedSummary() {
return collapsedSummary;
}
/**
* Sets the summary text shown when the item is collapsed. Corresponds to the {@code
* app:sudCollapsedSummary} XML attribute.
*/
public void setCollapsedSummary(CharSequence collapsedSummary) {
this.collapsedSummary = collapsedSummary;
if (!isExpanded()) {
notifyChanged();
}
}
/** @return The summary shown when in expanded state. */
public CharSequence getExpandedSummary() {
return expandedSummary;
}
/**
* Sets the summary text shown when the item is expanded. Corresponds to the {@code
* app:sudExpandedSummary} XML attribute.
*/
public void setExpandedSummary(CharSequence expandedSummary) {
this.expandedSummary = expandedSummary;
if (isExpanded()) {
notifyChanged();
}
}
@Override
public void onBindView(View view) {
// TODO: If it is possible to detect, log a warning if this is being used with ListView.
super.onBindView(view);
View content = view.findViewById(R.id.sud_items_expandable_switch_content);
content.setOnClickListener(this);
if (content instanceof CheckableLinearLayout) {
CheckableLinearLayout checkableLinearLayout = (CheckableLinearLayout) content;
checkableLinearLayout.setChecked(isExpanded());
// On lower versions
ViewCompat.setAccessibilityLiveRegion(
checkableLinearLayout,
isExpanded()
? ViewCompat.ACCESSIBILITY_LIVE_REGION_POLITE
: ViewCompat.ACCESSIBILITY_LIVE_REGION_NONE);
ViewCompat.setAccessibilityDelegate(checkableLinearLayout, accessibilityDelegate);
}
tintCompoundDrawables(view);
// Expandable switch item has focusability on the expandable layout on the left, and the
// switch on the right, but not the item itself.
view.setFocusable(false);
LayoutStyler.applyPartnerCustomizationLayoutPaddingStyle(content);
}
@Override
public void onClick(View v) {
setExpanded(!isExpanded());
}
// Tint the expand arrow with the text color
private void tintCompoundDrawables(View view) {
final TypedArray a =
view.getContext().obtainStyledAttributes(new int[] {android.R.attr.textColorPrimary});
final ColorStateList tintColor = a.getColorStateList(0);
a.recycle();
if (tintColor != null) {
TextView titleView = (TextView) view.findViewById(R.id.sud_items_title);
for (Drawable drawable : titleView.getCompoundDrawables()) {
if (drawable != null) {
drawable.setColorFilter(tintColor.getDefaultColor(), Mode.SRC_IN);
}
}
if (VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN_MR1) {
for (Drawable drawable : titleView.getCompoundDrawablesRelative()) {
if (drawable != null) {
drawable.setColorFilter(tintColor.getDefaultColor(), Mode.SRC_IN);
}
}
}
}
}
}
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