ReactTextInlineImageShadowNode.java

/**
 * Copyright (c) 2015-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

package com.facebook.react.views.text;

import javax.annotation.Nullable;

import java.util.Locale;

import android.content.Context;
import android.net.Uri;

import com.facebook.common.util.UriUtil;
import com.facebook.react.uimanager.LayoutShadowNode;
import com.facebook.react.uimanager.ReactProp;
import com.facebook.react.uimanager.ReactShadowNode;

/**
 * {@link ReactShadowNode} class for Image embedded within a TextView.
 *
 */
public class ReactTextInlineImageShadowNode extends LayoutShadowNode {

  private @Nullable Uri mUri;

  @ReactProp(name = "src")
  public void setSource(@Nullable String source) {
    Uri uri = null;
    if (source != null) {
      try {
        uri = Uri.parse(source);
        // Verify scheme is set, so that relative uri (used by static resources) are not handled.
        if (uri.getScheme() == null) {
          uri = null;
        }
      } catch (Exception e) {
        // ignore malformed uri, then attempt to extract resource ID.
      }
      if (uri == null) {
        uri = getResourceDrawableUri(getThemedContext(), source);
      }
    }
    if (uri != mUri) {
      markUpdated();
    }
    mUri = uri;
  }

  public @Nullable Uri getUri() {
    return mUri;
  }

  // TODO: t9053573 is tracking that this code should be shared
  private static @Nullable Uri getResourceDrawableUri(Context context, @Nullable String name) {
    if (name == null || name.isEmpty()) {
      return null;
    }
    name = name.toLowerCase(Locale.getDefault()).replace("-", "_");
    int resId = context.getResources().getIdentifier(
        name,
        "drawable",
        context.getPackageName());
    return new Uri.Builder()
        .scheme(UriUtil.LOCAL_RESOURCE_SCHEME)
        .path(String.valueOf(resId))
        .build();
  }

  @Override
  public boolean isVirtual() {
    return true;
  }

}