| // Copyright 2016 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_PAGE_LOAD_METRICS_OBSERVERS_DOCUMENT_WRITE_PAGE_LOAD_METRICS_OBSERVER_H_ |
| #define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_DOCUMENT_WRITE_PAGE_LOAD_METRICS_OBSERVER_H_ |
| |
| #include "base/macros.h" |
| #include "chrome/browser/page_load_metrics/page_load_metrics_observer.h" |
| |
| namespace internal { |
| |
| // Expose metrics for tests. |
| extern const char kHistogramDocWriteParseStartToFirstContentfulPaint[]; |
| extern const char kHistogramDocWriteBlockParseStartToFirstContentfulPaint[]; |
| extern const char kHistogramDocWriteBlockCount[]; |
| extern const char kHistogramDocWriteBlockReloadCount[]; |
| |
| } // namespace internal |
| |
| class DocumentWritePageLoadMetricsObserver |
| : public page_load_metrics::PageLoadMetricsObserver { |
| public: |
| DocumentWritePageLoadMetricsObserver() = default; |
| |
| // page_load_metrics::PageLoadMetricsObserver implementation: |
| void OnFirstContentfulPaintInPage( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& extra_info) override; |
| |
| void OnFirstMeaningfulPaintInMainFrameDocument( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& extra_info) override; |
| |
| void OnParseStop( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& extra_info) override; |
| |
| void OnLoadingBehaviorObserved( |
| const page_load_metrics::PageLoadExtraInfo& extra_info) override; |
| |
| enum DocumentWriteLoadingBehavior { |
| LOADING_BEHAVIOR_BLOCK, |
| LOADING_BEHAVIOR_RELOAD, |
| LOADING_BEHAVIOR_SAME_SITE_DIFF_SCHEME, |
| LOADING_BEHAVIOR_MAX |
| }; |
| |
| private: |
| static void LogLoadingBehaviorMetrics(DocumentWriteLoadingBehavior behavior, |
| ukm::SourceId source_id); |
| |
| void LogDocumentWriteBlockFirstContentfulPaint( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& info); |
| |
| void LogDocumentWriteBlockParseStop( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& info); |
| |
| void LogDocumentWriteBlockFirstMeaningfulPaint( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& info); |
| |
| bool doc_write_same_site_diff_scheme_ = false; |
| bool doc_write_block_observed_ = false; |
| bool doc_write_block_reload_observed_ = false; |
| |
| DISALLOW_COPY_AND_ASSIGN(DocumentWritePageLoadMetricsObserver); |
| }; |
| |
| #endif // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_DOCUMENT_WRITE_PAGE_LOAD_METRICS_OBSERVER_H_ |