appcompat/appcompat/src/main/java/androidx/appcompat/widget/AppCompatCheckedTextView.java

/*
 * Copyright (C) 2014 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 androidx.appcompat.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.ActionMode;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.widget.CheckedTextView;

import androidx.annotation.DrawableRes;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.content.res.AppCompatResources;
import androidx.core.widget.TextViewCompat;

/**
 * A {@link CheckedTextView} which supports compatible features on older versions of the platform.
 *
 * <p>This will automatically be used when you use {@link CheckedTextView} in your layouts
 * and the top-level activity / dialog is provided by
 * <a href="{@docRoot}topic/libraries/support-library/packages.html#v7-appcompat">appcompat</a>.
 * You should only need to manually use this class when writing custom views.</p>
 */
public class AppCompatCheckedTextView extends CheckedTextView {

    private static final int[] TINT_ATTRS = {
            android.R.attr.checkMark
    };

    private final AppCompatTextHelper mTextHelper;

    public AppCompatCheckedTextView(@NonNull Context context) {
        this(context, null);
    }

    public AppCompatCheckedTextView(@NonNull Context context, @Nullable AttributeSet attrs) {
        this(context, attrs, android.R.attr.checkedTextViewStyle);
    }

    public AppCompatCheckedTextView(
            @NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(TintContextWrapper.wrap(context), attrs, defStyleAttr);

        ThemeUtils.checkAppCompatTheme(this, getContext());

        mTextHelper = new AppCompatTextHelper(this);
        mTextHelper.loadFromAttributes(attrs, defStyleAttr);
        mTextHelper.applyCompoundDrawablesTints();

        TintTypedArray a = TintTypedArray.obtainStyledAttributes(getContext(), attrs,
                TINT_ATTRS, defStyleAttr, 0);
        setCheckMarkDrawable(a.getDrawable(0));
        a.recycle();
    }

    @Override
    public void setCheckMarkDrawable(@DrawableRes int resId) {
        setCheckMarkDrawable(AppCompatResources.getDrawable(getContext(), resId));
    }

    @Override
    public void setTextAppearance(Context context, int resId) {
        super.setTextAppearance(context, resId);
        if (mTextHelper != null) {
            mTextHelper.onSetTextAppearance(context, resId);
        }
    }

    @Override
    protected void drawableStateChanged() {
        super.drawableStateChanged();
        if (mTextHelper != null) {
            mTextHelper.applyCompoundDrawablesTints();
        }
    }

    @Override
    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
        return AppCompatHintHelper.onCreateInputConnection(super.onCreateInputConnection(outAttrs),
                outAttrs, this);
    }

    /**
     * See
     * {@link TextViewCompat#setCustomSelectionActionModeCallback(TextView, ActionMode.Callback)}
     */
    @Override
    public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) {
        super.setCustomSelectionActionModeCallback(TextViewCompat
                .wrapCustomSelectionActionModeCallback(this, actionModeCallback));
    }
}