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/*
* Copyright (C) 2015 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.setupwizardlib.items;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.setupwizardlib.R;
/**
* Definition of an item in an {@link ItemHierarchy}. An item is usually defined in XML and inflated
* using {@link ItemInflater}.
*/
public class Item extends AbstractItem {
private boolean enabled = true;
private Drawable icon;
private int layoutRes;
private CharSequence summary;
private CharSequence title;
private boolean visible = true;
public Item() {
super();
layoutRes = getDefaultLayoutResource();
}
public Item(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SuwItem);
enabled = a.getBoolean(R.styleable.SuwItem_android_enabled, true);
icon = a.getDrawable(R.styleable.SuwItem_android_icon);
title = a.getText(R.styleable.SuwItem_android_title);
summary = a.getText(R.styleable.SuwItem_android_summary);
layoutRes = a.getResourceId(R.styleable.SuwItem_android_layout, getDefaultLayoutResource());
visible = a.getBoolean(R.styleable.SuwItem_android_visible, true);
a.recycle();
}
protected int getDefaultLayoutResource() {
return R.layout.suw_items_default;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
notifyItemChanged();
}
@Override
public int getCount() {
return isVisible() ? 1 : 0;
}
@Override
public boolean isEnabled() {
return enabled;
}
public void setIcon(Drawable icon) {
this.icon = icon;
notifyItemChanged();
}
public Drawable getIcon() {
return icon;
}
public void setLayoutResource(int layoutResource) {
layoutRes = layoutResource;
notifyItemChanged();
}
@Override
public int getLayoutResource() {
return layoutRes;
}
public void setSummary(CharSequence summary) {
this.summary = summary;
notifyItemChanged();
}
public CharSequence getSummary() {
return summary;
}
public void setTitle(CharSequence title) {
this.title = title;
notifyItemChanged();
}
public CharSequence getTitle() {
return title;
}
public void setVisible(boolean visible) {
if (this.visible == visible) {
return;
}
this.visible = visible;
if (!visible) {
notifyItemRangeRemoved(0, 1);
} else {
notifyItemRangeInserted(0, 1);
}
}
public boolean isVisible() {
return visible;
}
@Override
public int getViewId() {
return getId();
}
@Override
public void onBindView(View view) {
TextView label = (TextView) view.findViewById(R.id.suw_items_title);
label.setText(getTitle());
TextView summaryView = (TextView) view.findViewById(R.id.suw_items_summary);
CharSequence summary = getSummary();
if (summary != null && summary.length() > 0) {
summaryView.setText(summary);
summaryView.setVisibility(View.VISIBLE);
} else {
summaryView.setVisibility(View.GONE);
}
final View iconContainer = view.findViewById(R.id.suw_items_icon_container);
final Drawable icon = getIcon();
if (icon != null) {
final ImageView iconView = (ImageView) view.findViewById(R.id.suw_items_icon);
// Set the image drawable to null before setting the state and level to avoid affecting
// any recycled drawable in the ImageView
iconView.setImageDrawable(null);
onMergeIconStateAndLevels(iconView, icon);
iconView.setImageDrawable(icon);
iconContainer.setVisibility(View.VISIBLE);
} else {
iconContainer.setVisibility(View.GONE);
}
view.setId(getViewId());
}
/**
* Copies state and level information from {@link #getIcon()} to the currently bound view's
* ImageView. Subclasses can override this method to change whats being copied from the icon to
* the ImageView.
*/
protected void onMergeIconStateAndLevels(ImageView iconView, Drawable icon) {
iconView.setImageState(icon.getState(), false /* merge */);
iconView.setImageLevel(icon.getLevel());
}
}
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