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.content.res.ColorStateList;
21import android.content.res.Resources;
22import android.content.res.TypedArray;
23import android.graphics.drawable.Drawable;
24import android.util.AttributeSet;
25import android.util.TypedValue;
26
27/**
28 * A class that wraps a {@link android.content.res.TypedArray} and provides the same public API
29 * surface. The purpose of this class is so that we can intercept the {@link #getDrawable(int)}
30 * call and tint the result.
31 *
32 * @hide
33 */
34public class TintTypedArray {
35
36    private final Context mContext;
37    private final TypedArray mWrapped;
38
39    private TintManager mTintManager;
40
41    public static TintTypedArray obtainStyledAttributes(Context context, AttributeSet set,
42            int[] attrs) {
43        TypedArray array = context.obtainStyledAttributes(set, attrs);
44        return new TintTypedArray(context, array);
45    }
46
47    public static TintTypedArray obtainStyledAttributes(Context context, AttributeSet set,
48            int[] attrs, int defStyleAttr, int defStyleRes) {
49        TypedArray array = context.obtainStyledAttributes(set, attrs, defStyleAttr, defStyleRes);
50        return new TintTypedArray(context, array);
51    }
52
53    private TintTypedArray(Context context, TypedArray array) {
54        mContext = context;
55        mWrapped = array;
56    }
57
58    public Drawable getDrawable(int index) {
59        if (mWrapped.hasValue(index)) {
60            final int resourceId = mWrapped.getResourceId(index, 0);
61            if (resourceId != 0) {
62                return getTintManager().getDrawable(resourceId);
63            }
64        }
65        return mWrapped.getDrawable(index);
66    }
67
68    public Drawable getDrawableIfKnown(int index) {
69        if (mWrapped.hasValue(index)) {
70            final int resourceId = mWrapped.getResourceId(index, 0);
71            if (resourceId != 0) {
72                return getTintManager().getDrawable(resourceId, true);
73            }
74        }
75        return null;
76    }
77
78    public int length() {
79        return mWrapped.length();
80    }
81
82    public int getIndexCount() {
83        return mWrapped.getIndexCount();
84    }
85
86    public int getIndex(int at) {
87        return mWrapped.getIndex(at);
88    }
89
90    public Resources getResources() {
91        return mWrapped.getResources();
92    }
93
94    public CharSequence getText(int index) {
95        return mWrapped.getText(index);
96    }
97
98    public String getString(int index) {
99        return mWrapped.getString(index);
100    }
101
102    public String getNonResourceString(int index) {
103        return mWrapped.getNonResourceString(index);
104    }
105
106    public boolean getBoolean(int index, boolean defValue) {
107        return mWrapped.getBoolean(index, defValue);
108    }
109
110    public int getInt(int index, int defValue) {
111        return mWrapped.getInt(index, defValue);
112    }
113
114    public float getFloat(int index, float defValue) {
115        return mWrapped.getFloat(index, defValue);
116    }
117
118    public int getColor(int index, int defValue) {
119        return mWrapped.getColor(index, defValue);
120    }
121
122    public ColorStateList getColorStateList(int index) {
123        return mWrapped.getColorStateList(index);
124    }
125
126    public int getInteger(int index, int defValue) {
127        return mWrapped.getInteger(index, defValue);
128    }
129
130    public float getDimension(int index, float defValue) {
131        return mWrapped.getDimension(index, defValue);
132    }
133
134    public int getDimensionPixelOffset(int index, int defValue) {
135        return mWrapped.getDimensionPixelOffset(index, defValue);
136    }
137
138    public int getDimensionPixelSize(int index, int defValue) {
139        return mWrapped.getDimensionPixelSize(index, defValue);
140    }
141
142    public int getLayoutDimension(int index, String name) {
143        return mWrapped.getLayoutDimension(index, name);
144    }
145
146    public int getLayoutDimension(int index, int defValue) {
147        return mWrapped.getLayoutDimension(index, defValue);
148    }
149
150    public float getFraction(int index, int base, int pbase, float defValue) {
151        return mWrapped.getFraction(index, base, pbase, defValue);
152    }
153
154    public int getResourceId(int index, int defValue) {
155        return mWrapped.getResourceId(index, defValue);
156    }
157
158    public CharSequence[] getTextArray(int index) {
159        return mWrapped.getTextArray(index);
160    }
161
162    public boolean getValue(int index, TypedValue outValue) {
163        return mWrapped.getValue(index, outValue);
164    }
165
166    public int getType(int index) {
167        return mWrapped.getType(index);
168    }
169
170    public boolean hasValue(int index) {
171        return mWrapped.hasValue(index);
172    }
173
174    public TypedValue peekValue(int index) {
175        return mWrapped.peekValue(index);
176    }
177
178    public String getPositionDescription() {
179        return mWrapped.getPositionDescription();
180    }
181
182    public void recycle() {
183        mWrapped.recycle();
184    }
185
186    public int getChangingConfigurations() {
187        return mWrapped.getChangingConfigurations();
188    }
189
190    public TintManager getTintManager() {
191        if (mTintManager == null) {
192            mTintManager = TintManager.get(mContext);
193        }
194        return mTintManager;
195    }
196
197}
198