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 androidx.appcompat.widget;
18
19import static androidx.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.util.AttributeSet;
26import android.view.inputmethod.EditorInfo;
27import android.view.inputmethod.InputConnection;
28import android.widget.AutoCompleteTextView;
29
30import androidx.annotation.DrawableRes;
31import androidx.annotation.Nullable;
32import androidx.annotation.RestrictTo;
33import androidx.appcompat.R;
34import androidx.appcompat.content.res.AppCompatResources;
35import androidx.core.view.TintableBackgroundView;
36
37/**
38 * A {@link AutoCompleteTextView} which supports compatible features on older versions of the
39 * platform, including:
40 * <ul>
41 *     <li>Allows dynamic tint of its background via the background tint methods in
42 *     {@link androidx.core.view.ViewCompat}.</li>
43 *     <li>Allows setting of the background tint using {@link R.attr#backgroundTint} and
44 *     {@link R.attr#backgroundTintMode}.</li>
45 * </ul>
46 *
47 * <p>This will automatically be used when you use {@link AutoCompleteTextView} in your layouts
48 * and the top-level activity / dialog is provided by
49 * <a href="{@docRoot}topic/libraries/support-library/packages.html#v7-appcompat">appcompat</a>.
50 * You should only need to manually use this class when writing custom views.</p>
51 */
52public class AppCompatAutoCompleteTextView extends AutoCompleteTextView implements
53        TintableBackgroundView {
54
55    private static final int[] TINT_ATTRS = {
56            android.R.attr.popupBackground
57    };
58
59    private final AppCompatBackgroundHelper mBackgroundTintHelper;
60    private final AppCompatTextHelper mTextHelper;
61
62    public AppCompatAutoCompleteTextView(Context context) {
63        this(context, null);
64    }
65
66    public AppCompatAutoCompleteTextView(Context context, AttributeSet attrs) {
67        this(context, attrs, R.attr.autoCompleteTextViewStyle);
68    }
69
70    public AppCompatAutoCompleteTextView(Context context, AttributeSet attrs, int defStyleAttr) {
71        super(TintContextWrapper.wrap(context), attrs, defStyleAttr);
72
73        TintTypedArray a = TintTypedArray.obtainStyledAttributes(getContext(), attrs,
74                TINT_ATTRS, defStyleAttr, 0);
75        if (a.hasValue(0)) {
76            setDropDownBackgroundDrawable(a.getDrawable(0));
77        }
78        a.recycle();
79
80        mBackgroundTintHelper = new AppCompatBackgroundHelper(this);
81        mBackgroundTintHelper.loadFromAttributes(attrs, defStyleAttr);
82
83        mTextHelper = new AppCompatTextHelper(this);
84        mTextHelper.loadFromAttributes(attrs, defStyleAttr);
85        mTextHelper.applyCompoundDrawablesTints();
86    }
87
88    @Override
89    public void setDropDownBackgroundResource(@DrawableRes int resId) {
90        setDropDownBackgroundDrawable(AppCompatResources.getDrawable(getContext(), resId));
91    }
92
93    @Override
94    public void setBackgroundResource(@DrawableRes int resId) {
95        super.setBackgroundResource(resId);
96        if (mBackgroundTintHelper != null) {
97            mBackgroundTintHelper.onSetBackgroundResource(resId);
98        }
99    }
100
101    @Override
102    public void setBackgroundDrawable(Drawable background) {
103        super.setBackgroundDrawable(background);
104        if (mBackgroundTintHelper != null) {
105            mBackgroundTintHelper.onSetBackgroundDrawable(background);
106        }
107    }
108
109    /**
110     * This should be accessed via
111     * {@link androidx.core.view.ViewCompat#setBackgroundTintList(android.view.View, ColorStateList)}
112     *
113     * @hide
114     */
115    @RestrictTo(LIBRARY_GROUP)
116    @Override
117    public void setSupportBackgroundTintList(@Nullable ColorStateList tint) {
118        if (mBackgroundTintHelper != null) {
119            mBackgroundTintHelper.setSupportBackgroundTintList(tint);
120        }
121    }
122
123    /**
124     * This should be accessed via
125     * {@link androidx.core.view.ViewCompat#getBackgroundTintList(android.view.View)}
126     *
127     * @hide
128     */
129    @RestrictTo(LIBRARY_GROUP)
130    @Override
131    @Nullable
132    public ColorStateList getSupportBackgroundTintList() {
133        return mBackgroundTintHelper != null
134                ? mBackgroundTintHelper.getSupportBackgroundTintList() : null;
135    }
136
137    /**
138     * This should be accessed via
139     * {@link androidx.core.view.ViewCompat#setBackgroundTintMode(android.view.View, PorterDuff.Mode)}
140     *
141     * @hide
142     */
143    @RestrictTo(LIBRARY_GROUP)
144    @Override
145    public void setSupportBackgroundTintMode(@Nullable PorterDuff.Mode tintMode) {
146        if (mBackgroundTintHelper != null) {
147            mBackgroundTintHelper.setSupportBackgroundTintMode(tintMode);
148        }
149    }
150
151    /**
152     * This should be accessed via
153     * {@link androidx.core.view.ViewCompat#getBackgroundTintMode(android.view.View)}
154     *
155     * @hide
156     */
157    @RestrictTo(LIBRARY_GROUP)
158    @Override
159    @Nullable
160    public PorterDuff.Mode getSupportBackgroundTintMode() {
161        return mBackgroundTintHelper != null
162                ? mBackgroundTintHelper.getSupportBackgroundTintMode() : null;
163    }
164
165    @Override
166    protected void drawableStateChanged() {
167        super.drawableStateChanged();
168        if (mBackgroundTintHelper != null) {
169            mBackgroundTintHelper.applySupportBackgroundTint();
170        }
171        if (mTextHelper != null) {
172            mTextHelper.applyCompoundDrawablesTints();
173        }
174    }
175
176    @Override
177    public void setTextAppearance(Context context, int resId) {
178        super.setTextAppearance(context, resId);
179        if (mTextHelper != null) {
180            mTextHelper.onSetTextAppearance(context, resId);
181        }
182    }
183
184    @Override
185    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
186        return AppCompatHintHelper.onCreateInputConnection(super.onCreateInputConnection(outAttrs),
187                outAttrs, this);
188    }
189}
190