com.facebook.react.views.imagehelper.ImageSource.java Source code

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Here is the source code for com.facebook.react.views.imagehelper.ImageSource.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.imagehelper;

import android.content.Context;
import android.net.Uri;
import androidx.annotation.Nullable;
import com.facebook.infer.annotation.Assertions;

/** Class describing an image source (network URI or resource) and size. */
public class ImageSource {

    private @Nullable Uri mUri;
    private String mSource;
    private double mSize;
    private boolean isResource;

    public ImageSource(Context context, String source, double width, double height) {
        mSource = source;
        mSize = width * height;

        // Important: we compute the URI here so that we don't need to hold a reference to the context,
        // potentially causing leaks.
        mUri = computeUri(context);
    }

    public ImageSource(Context context, String source) {
        this(context, source, 0.0d, 0.0d);
    }

    /** Get the source of this image, as it was passed to the constructor. */
    public String getSource() {
        return mSource;
    }

    /** Get the URI for this image - can be either a parsed network URI or a resource URI. */
    public Uri getUri() {
        return Assertions.assertNotNull(mUri);
    }

    /** Get the area of this image. */
    public double getSize() {
        return mSize;
    }

    /** Get whether this image source represents an Android resource or a network URI. */
    public boolean isResource() {
        return isResource;
    }

    private Uri computeUri(Context context) {
        try {
            Uri uri = Uri.parse(mSource);
            // Verify scheme is set, so that relative uri (used by static resources) are not handled.
            return uri.getScheme() == null ? computeLocalUri(context) : uri;
        } catch (Exception e) {
            return computeLocalUri(context);
        }
    }

    private Uri computeLocalUri(Context context) {
        isResource = true;
        return ResourceDrawableIdHelper.getInstance().getResourceDrawableUri(context, mSource);
    }
}