com.facebook.react.views.text.TextInlineImageSpan.java Source code

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Here is the source code for com.facebook.react.views.text.TextInlineImageSpan.java

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/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

package com.facebook.react.views.text;

import android.graphics.drawable.Drawable;
import android.text.Spannable;
import android.text.style.ReplacementSpan;
import android.view.View;
import android.widget.TextView;
import androidx.annotation.Nullable;

/** Base class for inline image spans. */
public abstract class TextInlineImageSpan extends ReplacementSpan implements ReactSpan {

    /**
     * For TextInlineImageSpan we need to update the Span to know that the window is attached and the
     * TextView that we will set as the callback on the Drawable.
     *
     * @param spannable The spannable that may contain TextInlineImageSpans
     * @param view The view which will be set as the callback for the Drawable
     */
    public static void possiblyUpdateInlineImageSpans(Spannable spannable, TextView view) {
        TextInlineImageSpan[] spans = spannable.getSpans(0, spannable.length(), TextInlineImageSpan.class);
        for (TextInlineImageSpan span : spans) {
            span.onAttachedToWindow();
            span.setTextView(view);
        }
    }

    /** Get the drawable that is span represents. */
    public abstract @Nullable Drawable getDrawable();

    /** Called by the text view from {@link View#onDetachedFromWindow()}, */
    public abstract void onDetachedFromWindow();

    /** Called by the text view from {@link View#onStartTemporaryDetach()}. */
    public abstract void onStartTemporaryDetach();

    /** Called by the text view from {@link View#onAttachedToWindow()}. */
    public abstract void onAttachedToWindow();

    /** Called by the text view from {@link View#onFinishTemporaryDetach()}. */
    public abstract void onFinishTemporaryDetach();

    /** Set the textview that will contain this span. */
    public abstract void setTextView(TextView textView);

    /** Get the width of the span. */
    public abstract int getWidth();

    /** Get the height of the span. */
    public abstract int getHeight();
}