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.widget;
18
19import static android.support.annotation.RestrictTo.Scope.LIBRARY_GROUP;
20
21import android.content.Context;
22import android.content.res.ColorStateList;
23import android.graphics.PorterDuff;
24import android.graphics.drawable.Drawable;
25import android.support.annotation.DrawableRes;
26import android.support.annotation.Nullable;
27import android.support.annotation.RestrictTo;
28import android.support.v4.view.TintableBackgroundView;
29import android.support.v7.appcompat.R;
30import android.support.v7.content.res.AppCompatResources;
31import android.util.AttributeSet;
32import android.widget.MultiAutoCompleteTextView;
33
34/**
35 * A {@link MultiAutoCompleteTextView} which supports compatible features on older version of the
36 * platform, including:
37 * <ul>
38 *     <li>Supports {@link R.attr#textAllCaps} style attribute which works back to
39 *     {@link android.os.Build.VERSION_CODES#GINGERBREAD Gingerbread}.</li>
40 *     <li>Allows dynamic tint of its background via the background tint methods in
41 *     {@link android.support.v4.view.ViewCompat}.</li>
42 *     <li>Allows setting of the background tint using {@link R.attr#backgroundTint} and
43 *     {@link R.attr#backgroundTintMode}.</li>
44 * </ul>
45 *
46 * <p>This will automatically be used when you use {@link MultiAutoCompleteTextView} in your layouts.
47 * You should only need to manually use this class when writing custom views.</p>
48 */
49public class AppCompatMultiAutoCompleteTextView extends MultiAutoCompleteTextView
50        implements TintableBackgroundView {
51
52    private static final int[] TINT_ATTRS = {
53            android.R.attr.popupBackground
54    };
55
56    private final AppCompatBackgroundHelper mBackgroundTintHelper;
57    private final AppCompatTextHelper mTextHelper;
58
59    public AppCompatMultiAutoCompleteTextView(Context context) {
60        this(context, null);
61    }
62
63    public AppCompatMultiAutoCompleteTextView(Context context, AttributeSet attrs) {
64        this(context, attrs, R.attr.autoCompleteTextViewStyle);
65    }
66
67    public AppCompatMultiAutoCompleteTextView(Context context, AttributeSet attrs, int defStyleAttr) {
68        super(TintContextWrapper.wrap(context), attrs, defStyleAttr);
69
70        TintTypedArray a = TintTypedArray.obtainStyledAttributes(getContext(), attrs,
71                TINT_ATTRS, defStyleAttr, 0);
72        if (a.hasValue(0)) {
73            setDropDownBackgroundDrawable(a.getDrawable(0));
74        }
75        a.recycle();
76
77        mBackgroundTintHelper = new AppCompatBackgroundHelper(this);
78        mBackgroundTintHelper.loadFromAttributes(attrs, defStyleAttr);
79
80        mTextHelper = AppCompatTextHelper.create(this);
81        mTextHelper.loadFromAttributes(attrs, defStyleAttr);
82        mTextHelper.applyCompoundDrawablesTints();
83    }
84
85    @Override
86    public void setDropDownBackgroundResource(@DrawableRes int resId) {
87        setDropDownBackgroundDrawable(AppCompatResources.getDrawable(getContext(), resId));
88    }
89
90    @Override
91    public void setBackgroundResource(@DrawableRes int resId) {
92        super.setBackgroundResource(resId);
93        if (mBackgroundTintHelper != null) {
94            mBackgroundTintHelper.onSetBackgroundResource(resId);
95        }
96    }
97
98    @Override
99    public void setBackgroundDrawable(Drawable background) {
100        super.setBackgroundDrawable(background);
101        if (mBackgroundTintHelper != null) {
102            mBackgroundTintHelper.onSetBackgroundDrawable(background);
103        }
104    }
105
106    /**
107     * This should be accessed via
108     * {@link android.support.v4.view.ViewCompat#setBackgroundTintList(android.view.View, ColorStateList)}
109     *
110     * @hide
111     */
112    @RestrictTo(LIBRARY_GROUP)
113    @Override
114    public void setSupportBackgroundTintList(@Nullable ColorStateList tint) {
115        if (mBackgroundTintHelper != null) {
116            mBackgroundTintHelper.setSupportBackgroundTintList(tint);
117        }
118    }
119
120    /**
121     * This should be accessed via
122     * {@link android.support.v4.view.ViewCompat#getBackgroundTintList(android.view.View)}
123     *
124     * @hide
125     */
126    @RestrictTo(LIBRARY_GROUP)
127    @Override
128    @Nullable
129    public ColorStateList getSupportBackgroundTintList() {
130        return mBackgroundTintHelper != null
131                ? mBackgroundTintHelper.getSupportBackgroundTintList() : null;
132    }
133
134    /**
135     * This should be accessed via
136     * {@link android.support.v4.view.ViewCompat#setBackgroundTintMode(android.view.View, PorterDuff.Mode)}
137     *
138     * @hide
139     */
140    @RestrictTo(LIBRARY_GROUP)
141    @Override
142    public void setSupportBackgroundTintMode(@Nullable PorterDuff.Mode tintMode) {
143        if (mBackgroundTintHelper != null) {
144            mBackgroundTintHelper.setSupportBackgroundTintMode(tintMode);
145        }
146    }
147
148    /**
149     * This should be accessed via
150     * {@link android.support.v4.view.ViewCompat#getBackgroundTintMode(android.view.View)}
151     *
152     * @hide
153     */
154    @RestrictTo(LIBRARY_GROUP)
155    @Override
156    @Nullable
157    public PorterDuff.Mode getSupportBackgroundTintMode() {
158        return mBackgroundTintHelper != null
159                ? mBackgroundTintHelper.getSupportBackgroundTintMode() : null;
160    }
161
162    @Override
163    protected void drawableStateChanged() {
164        super.drawableStateChanged();
165        if (mBackgroundTintHelper != null) {
166            mBackgroundTintHelper.applySupportBackgroundTint();
167        }
168        if (mTextHelper != null) {
169            mTextHelper.applyCompoundDrawablesTints();
170        }
171    }
172
173    @Override
174    public void setTextAppearance(Context context, int resId) {
175        super.setTextAppearance(context, resId);
176        if (mTextHelper != null) {
177            mTextHelper.onSetTextAppearance(context, resId);
178        }
179    }
180}
181