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// Copyright 2014 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.
#ifndef CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_
#define CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_
#include <memory>
#include <string>
#include <vector>
#include "base/callback_forward.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "content/public/common/manifest.h"
#include "content/public/renderer/render_frame_observer.h"
#include "mojo/public/cpp/bindings/binding_set.h"
#include "third_party/blink/public/platform/modules/manifest/manifest_manager.mojom.h"
class GURL;
namespace blink {
class WebURLResponse;
}
namespace content {
class ManifestFetcher;
// The ManifestManager is a helper class that takes care of fetching and parsing
// the Manifest of the associated RenderFrame. It uses the ManifestFetcher and
// the ManifestParser in order to do so.
//
// Consumers should use the mojo ManifestManager interface to use this class.
class ManifestManager : public RenderFrameObserver,
public blink::mojom::ManifestManager {
public:
static bool CanFetchManifest(RenderFrame* render_frame);
explicit ManifestManager(RenderFrame* render_frame);
~ManifestManager() override;
// RenderFrameObserver implementation.
void DidChangeManifest() override;
void DidCommitProvisionalLoad(bool is_new_navigation,
bool is_same_document_navigation) override;
void BindToRequest(blink::mojom::ManifestManagerRequest request);
private:
enum ResolveState {
ResolveStateSuccess,
ResolveStateFailure
};
using InternalRequestManifestCallback =
base::OnceCallback<void(const GURL&,
const Manifest&,
const blink::mojom::ManifestDebugInfo*)>;
// RenderFrameObserver implementation.
void OnDestruct() override;
// blink::mojom::ManifestManager implementation.
void RequestManifest(RequestManifestCallback callback) override;
void RequestManifestDebugInfo(
RequestManifestDebugInfoCallback callback) override;
void RequestManifestImpl(InternalRequestManifestCallback callback);
void FetchManifest();
void OnManifestFetchComplete(const GURL& document_url,
const blink::WebURLResponse& response,
const std::string& data);
void ResolveCallbacks(ResolveState state);
std::unique_ptr<ManifestFetcher> fetcher_;
// Whether the RenderFrame may have an associated Manifest. If true, the frame
// may have a manifest, if false, it can't have one. This boolean is true when
// DidChangeManifest() is called, if it is never called, it means that the
// associated document has no <link rel='manifest'>.
bool may_have_manifest_;
// Whether the current Manifest is dirty.
bool manifest_dirty_;
// Current Manifest. Might be outdated if manifest_dirty_ is true.
Manifest manifest_;
// The URL of the current manifest.
GURL manifest_url_;
// Current Manifest debug information.
blink::mojom::ManifestDebugInfoPtr manifest_debug_info_;
std::vector<InternalRequestManifestCallback> pending_callbacks_;
mojo::BindingSet<blink::mojom::ManifestManager> bindings_;
DISALLOW_COPY_AND_ASSIGN(ManifestManager);
};
} // namespace content
#endif // CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_
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