xref: /aosp_15_r20/external/perfetto/ui/src/base/assets.ts (revision 6dbdd20afdafa5e3ca9b8809fa73465d530080dc)

// Copyright (C) 2024 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.

import {getServingRoot} from './http_utils';

let rootUrl = '';

/**
 * This function must be called once while bootstrapping in a direct script
 * context (i.e. not a promise or callback). Typically frontend/index.ts.
 */
export function initAssets() {
  rootUrl = getServingRoot();
}

/**
 * Returns the absolute url of an asset.
 * assetSrc('assets/image.jpg') -> '/v123-deadbef/assets/image.png';
 */
export function assetSrc(relPath: string) {
  return rootUrl + relPath;
}