1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.support.v7.internal.widget;
18
19import android.content.Context;
20import android.support.annotation.DrawableRes;
21import android.util.AttributeSet;
22import android.widget.ImageView;
23
24/**
25 * An tint aware {@link android.widget.ImageView}
26 *
27 * @hide
28 */
29public class TintImageView extends ImageView {
30
31    private static final int[] TINT_ATTRS = {
32            android.R.attr.background,
33            android.R.attr.src
34    };
35
36    private final TintManager mTintManager;
37
38    public TintImageView(Context context) {
39        this(context, null);
40    }
41
42    public TintImageView(Context context, AttributeSet attrs) {
43        this(context, attrs, 0);
44    }
45
46    public TintImageView(Context context, AttributeSet attrs, int defStyleAttr) {
47        super(context, attrs, defStyleAttr);
48
49        TintTypedArray a = TintTypedArray.obtainStyledAttributes(context, attrs, TINT_ATTRS,
50                defStyleAttr, 0);
51        if (a.length() > 0) {
52            if (a.hasValue(0)) {
53                setBackgroundDrawable(a.getDrawable(0));
54            }
55            if (a.hasValue(1)) {
56                setImageDrawable(a.getDrawable(1));
57            }
58        }
59        a.recycle();
60
61        // Keep the TintManager in case we need it later
62        mTintManager = a.getTintManager();
63    }
64
65    @Override
66    public void setImageResource(@DrawableRes int resId) {
67        // Intercept this call and instead retrieve the Drawable via the tint manager
68        setImageDrawable(mTintManager.getDrawable(resId));
69    }
70}
71