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PiperOrigin-RevId: 565755048
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@ -60,6 +60,7 @@ mediapipe_ts_library(
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":graph_runner_factory_api",
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":listener_types",
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":platform_utils",
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":run_script_helper",
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":wasm_module_private",
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],
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)
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@ -98,6 +99,18 @@ mediapipe_ts_library(
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deps = [":platform_utils"],
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)
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genrule(
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name = "run_script_genrule",
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srcs = ["run_script_helper.ts.template"],
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outs = ["run_script_helper.ts"],
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cmd = "cp $< $@",
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)
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mediapipe_ts_library(
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name = "run_script_helper",
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srcs = ["run_script_helper.ts"],
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)
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jasmine_node_test(
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name = "platform_utils_test",
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deps = [
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@ -1,6 +1,6 @@
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// Placeholder for internal dependency on assertTruthy
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// Placeholder for internal dependency on jsloader
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import {isWebKit} from '../../web/graph_runner/platform_utils';
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import {runScript} from '../../web/graph_runner/run_script_helper';
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// Placeholder for internal dependency on trusted resource url
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import {GraphRunnerApi, ImageSource} from './graph_runner_api';
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@ -717,26 +717,6 @@ export class GraphRunner implements GraphRunnerApi {
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}
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}
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// Quick private helper to run the given script safely
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async function runScript(scriptUrl: string|string) {
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if (typeof importScripts === 'function') {
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importScripts(scriptUrl.toString());
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} else {
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const script = document.createElement('script');
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script.setAttribute('src', scriptUrl);
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script.setAttribute('crossorigin', 'anonymous');
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return new Promise<void>((resolve) => {
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script.addEventListener('load', () => {
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resolve();
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}, false);
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script.addEventListener('error', () => {
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resolve();
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}, false);
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document.body.appendChild(script);
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});
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}
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}
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/** {@override CreateMediaPipeLibApi} */
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export const createMediaPipeLib: CreateMediaPipeLibApi = async<LibType>(
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constructorFcn: WasmMediaPipeConstructor<LibType>,
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28
mediapipe/web/graph_runner/run_script_helper.ts.template
Normal file
28
mediapipe/web/graph_runner/run_script_helper.ts.template
Normal file
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@ -0,0 +1,28 @@
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// Placeholder for internal dependency on jsloader
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// Placeholder for internal dependency on trusted resource url
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/**
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* Fetches each URL in urls, executes them one-by-one in the order they are
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* passed, and then returns (or throws if something went amiss).
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*/
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declare function importScripts(...urls: Array<string|URL>): void;
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// Quick helper to run the given script safely
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export async function runScript(scriptUrl: string) {
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if (typeof importScripts === 'function') {
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importScripts(scriptUrl.toString());
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} else {
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const script = document.createElement('script');
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script.setAttribute('src', scriptUrl);
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script.setAttribute('crossorigin', 'anonymous');
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return new Promise<void>((resolve, revoke) => {
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script.addEventListener('load', () => {
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resolve();
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}, false);
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script.addEventListener('error', e => {
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revoke(e);
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}, false);
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document.body.appendChild(script);
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});
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}
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}
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