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web api interface

LaunchQueue

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Limited availability

The LaunchQueue interface of the Launch Handler API is available via the launchQueue property. When a progressive web app (PWA) is launched with a launch_handler client_mode value of focus-existing, navigate-new, or navigate-existing, LaunchQueue provides access to functionality that allows custom launch navigation handling to be implemented in the PWA. This functionality is controlled by the properties of the LaunchParams object passed into the setConsumer() callback function.

Instance Methods

  • setConsumer() Experimental
    • : Contains a callback function that handles custom launch navigation for a PWA.

Examples

if ("launchQueue" in window) {
  window.launchQueue.setConsumer((launchParams) => {
    if (launchParams.targetURL) {
      const params = new URL(launchParams.targetURL).searchParams;

      // Assuming a music player app that gets a track passed to it to be played
      const track = params.get("track");
      if (track) {
        audio.src = track;
        title.textContent = new URL(track).pathname.slice(1);
        audio.play();
      }
    }
  });
}

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also