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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.android.setupwizardlib.template;
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 androidx.annotation.DrawableRes;
import com.android.setupwizardlib.R;
import com.android.setupwizardlib.TemplateLayout;
/**
* A {@link Mixin} for setting an icon on the template layout.
*/
public class IconMixin implements Mixin {
private TemplateLayout mTemplateLayout;
/**
* @param layout The template layout that this Mixin is a part of.
* @param attrs XML attributes given to the layout.
* @param defStyleAttr The default style attribute as given to the constructor of the layout.
*/
public IconMixin(TemplateLayout layout, AttributeSet attrs, int defStyleAttr) {
mTemplateLayout = layout;
final Context context = layout.getContext();
final TypedArray a =
context.obtainStyledAttributes(attrs, R.styleable.SuwIconMixin, defStyleAttr, 0);
final @DrawableRes int icon = a.getResourceId(R.styleable.SuwIconMixin_android_icon, 0);
if (icon != 0) {
setIcon(icon);
}
a.recycle();
}
/**
* Sets the icon on this layout. The icon can also be set in XML using {@code android:icon}.
*
* @param icon A drawable icon.
*/
public void setIcon(Drawable icon) {
final ImageView iconView = getView();
if (iconView != null) {
iconView.setImageDrawable(icon);
iconView.setVisibility(icon != null ? View.VISIBLE : View.GONE);
}
}
/**
* Sets the icon on this layout. The icon can also be set in XML using {@code android:icon}.
*
* @param icon A drawable icon resource.
*/
public void setIcon(@DrawableRes int icon) {
final ImageView iconView = getView();
if (iconView != null) {
// Note: setImageResource on the ImageView is overridden in AppCompatImageView for
// support lib users, which enables vector drawable compat to work on versions pre-L.
iconView.setImageResource(icon);
iconView.setVisibility(icon != 0 ? View.VISIBLE : View.GONE);
}
}
/**
* @return The icon previously set in {@link #setIcon(Drawable)} or {@code android:icon}
*/
public Drawable getIcon() {
final ImageView iconView = getView();
return iconView != null ? iconView.getDrawable() : null;
}
/**
* Sets the content description of the icon view
*/
public void setContentDescription(CharSequence description) {
final ImageView iconView = getView();
if (iconView != null) {
iconView.setContentDescription(description);
}
}
/**
* @return The content description of the icon view
*/
public CharSequence getContentDescription() {
final ImageView iconView = getView();
return iconView != null ? iconView.getContentDescription() : null;
}
/**
* @return The ImageView responsible for displaying the icon.
*/
protected ImageView getView() {
return (ImageView) mTemplateLayout.findManagedViewById(R.id.suw_layout_icon);
}
}
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