chromium/chrome/common/prerender.mojom


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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module chrome.mojom;

import "url/mojom/url.mojom";

interface PrerenderCanceler {
  // Message sent from the renderer to the browser to notify it of a
  // window.print() call which should cancel the prerender. The message is sent
  // only when the renderer is prerendering.
  CancelPrerenderForPrinting();

  // Cancels prerendering because of an unsupported method.
  CancelPrerenderForUnsupportedMethod();

  // Cancels prerendering because of an unsupported scheme.
  CancelPrerenderForUnsupportedScheme(url.mojom.Url url);

  // Cancels prerendering because of a synchronous deferred redirect.
  CancelPrerenderForSyncDeferredRedirect();
};

// PrerenderDispatcher Messages
// These are messages sent from the browser to the renderer in relation to
// running prerenders.
interface PrerenderDispatcher {
  // Signals to launcher that a prerender is running.
  PrerenderStart(int32 prerender_id);

  // Signals to launcher that a prerender is running.
  PrerenderStopLoading(int32 prerender_id);

  // Signals to launcher that a prerender has had it's 'domcontentloaded' event.
  PrerenderDomContentLoaded(int32 prerender_id);

  // Signals to a launcher that a new alias has been added to a prerender.
  PrerenderAddAlias(url.mojom.Url alias);

  // Signals to a launcher that a new alias has been added to a prerender.
  PrerenderRemoveAliases(array<url.mojom.Url> aliases);

  // Signals to a launcher that a prerender is no longer running.
  PrerenderStop(int32 prerender_id);
};