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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.
#ifndef CHROME_BROWSER_UI_WEBUI_DISCARDS_GRAPH_DUMP_IMPL_H_
#define CHROME_BROWSER_UI_WEBUI_DISCARDS_GRAPH_DUMP_IMPL_H_
#include <memory>
#include "base/memory/ref_counted_memory.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "chrome/browser/ui/webui/discards/discards.mojom.h"
#include "components/performance_manager/public/graph/frame_node.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/public/graph/page_node.h"
#include "components/performance_manager/public/graph/process_node.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
// TODO(siggi): Add workers to the WebUI graph.
class DiscardsGraphDumpImpl : public discards::mojom::GraphDump,
public performance_manager::GraphOwned,
public performance_manager::FrameNodeObserver,
public performance_manager::PageNodeObserver,
public performance_manager::ProcessNodeObserver {
public:
DiscardsGraphDumpImpl();
~DiscardsGraphDumpImpl() override;
// Creates a new DiscardsGraphDumpImpl to service |receiver| and passes its
// ownership to |graph|.
static void CreateAndBind(
mojo::PendingReceiver<discards::mojom::GraphDump> receiver,
performance_manager::Graph* graph);
// Exposed for testing.
void BindWithGraph(
performance_manager::Graph* graph,
mojo::PendingReceiver<discards::mojom::GraphDump> receiver);
protected:
// WebUIGraphDump implementation.
void SubscribeToChanges(
mojo::PendingRemote<discards::mojom::GraphChangeStream> change_subscriber)
override;
// GraphOwned implementation.
void OnPassedToGraph(performance_manager::Graph* graph) override;
void OnTakenFromGraph(performance_manager::Graph* graph) override;
// FrameNodeObserver implementation:
void OnFrameNodeAdded(
const performance_manager::FrameNode* frame_node) override;
void OnBeforeFrameNodeRemoved(
const performance_manager::FrameNode* frame_node) override;
// Ignored.
void OnIsCurrentChanged(
const performance_manager::FrameNode* frame_node) override {}
// Ignored.
void OnNetworkAlmostIdleChanged(
const performance_manager::FrameNode* frame_node) override {}
// Ignored.
void OnFrameLifecycleStateChanged(
const performance_manager::FrameNode* frame_node) override {}
// Ignored.
void OnOriginTrialFreezePolicyChanged(
const performance_manager::FrameNode* frame_node,
const InterventionPolicy& previous_value) override {}
void OnURLChanged(const performance_manager::FrameNode* frame_node,
const GURL& previous_value) override;
// Ignored.
void OnIsAdFrameChanged(
const performance_manager::FrameNode* frame_node) override {}
// Ignored.
void OnFrameIsHoldingWebLockChanged(
const performance_manager::FrameNode* frame_node) override {}
// Ignored.
void OnFrameIsHoldingIndexedDBLockChanged(
const performance_manager::FrameNode* frame_node) override {}
// Ignored.
void OnNonPersistentNotificationCreated(
const performance_manager::FrameNode* frame_node) override {}
// Ignored.
void OnPriorityAndReasonChanged(
const performance_manager::FrameNode* frame_node) override {}
// PageNodeObserver implementation:
void OnPageNodeAdded(const performance_manager::PageNode* page_node) override;
void OnBeforePageNodeRemoved(
const performance_manager::PageNode* page_node) override;
void OnIsVisibleChanged(
const performance_manager::PageNode* page_node) override {} // Ignored.
void OnIsAudibleChanged(
const performance_manager::PageNode* page_node) override {} // Ignored.
void OnIsLoadingChanged(
const performance_manager::PageNode* page_node) override {} // Ignored.
void OnUkmSourceIdChanged(
const performance_manager::PageNode* page_node) override {} // Ignored.
// Ignored.
void OnPageLifecycleStateChanged(
const performance_manager::PageNode* page_node) override {}
// Ignored.
void OnPageOriginTrialFreezePolicyChanged(
const performance_manager::PageNode* page_node) override {}
// Ignored.
void OnPageIsHoldingWebLockChanged(
const performance_manager::PageNode* page_node) override {}
// Ignored.
void OnPageIsHoldingIndexedDBLockChanged(
const performance_manager::PageNode* page_node) override {}
void OnMainFrameUrlChanged(
const performance_manager::PageNode* page_node) override;
// Ignored.
void OnPageAlmostIdleChanged(
const performance_manager::PageNode* page_node) override {}
void OnMainFrameDocumentChanged(
const performance_manager::PageNode* page_node) override {}
void OnTitleUpdated(const performance_manager::PageNode* page_node) override {
} // Ignored.
void OnFaviconUpdated(
const performance_manager::PageNode* page_node) override;
// ProcessNodeObserver implementation:
void OnProcessNodeAdded(
const performance_manager::ProcessNode* process_node) override;
void OnProcessLifetimeChange(
const performance_manager::ProcessNode* process_node) override;
void OnBeforeProcessNodeRemoved(
const performance_manager::ProcessNode* process_node) override;
void OnExpectedTaskQueueingDurationSample(
const performance_manager::ProcessNode* process_node) override {
} // Ignored.
// Ignored.
void OnMainThreadTaskLoadIsLow(
const performance_manager::ProcessNode* process_node) override {}
// Ignored.
void OnAllFramesInProcessFrozen(
const performance_manager::ProcessNode* process_node) override {}
private:
// The favicon requests happen on the UI thread. This helper class
// maintains the state required to do that.
class FaviconRequestHelper;
FaviconRequestHelper* EnsureFaviconRequestHelper();
void StartPageFaviconRequest(const performance_manager::PageNode* page_node);
void StartFrameFaviconRequest(
const performance_manager::FrameNode* frame_node);
void SendFrameNotification(const performance_manager::FrameNode* frame,
bool created);
void SendPageNotification(const performance_manager::PageNode* page,
bool created);
void SendProcessNotification(const performance_manager::ProcessNode* process,
bool created);
void SendDeletionNotification(const performance_manager::Node* node);
void SendFaviconNotification(
int64_t serialization_id,
scoped_refptr<base::RefCountedMemory> bitmap_data);
static void BindOnPMSequence(
mojo::PendingReceiver<discards::mojom::GraphDump> receiver,
performance_manager::Graph* graph);
static void OnConnectionError(DiscardsGraphDumpImpl* impl);
performance_manager::Graph* graph_ = nullptr;
std::unique_ptr<FaviconRequestHelper> favicon_request_helper_;
// The current change subscriber to this dumper. This instance is subscribed
// to every node in |graph_| save for the system node, so long as there is a
// subscriber.
mojo::Remote<discards::mojom::GraphChangeStream> change_subscriber_;
mojo::Receiver<discards::mojom::GraphDump> receiver_{this};
SEQUENCE_CHECKER(sequence_checker_);
base::WeakPtrFactory<DiscardsGraphDumpImpl> weak_factory_{this};
DISALLOW_COPY_AND_ASSIGN(DiscardsGraphDumpImpl);
};
#endif // CHROME_BROWSER_UI_WEBUI_DISCARDS_GRAPH_DUMP_IMPL_H_
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