0
Files
src/pdf/metrics_handler.cc
David Tseng 16345f58a3 [pdf-a11y]: collect metrics for tagged PDFs
This change introduces a metric to see what percentage of PDFs opened by
accessibility users are tagged.

Bug: none
Test: cq. Manually verified with a tagged PDF, untagged/inaccessible PDF
Change-Id: I1037950f4b2af469ff92d07e6552eb4499d65816
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5448476
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: David Tseng <dtseng@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1289583}
2024-04-18 21:15:26 +00:00

45 lines
1.3 KiB
C++

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "pdf/metrics_handler.h"
#include <vector>
#include "base/metrics/histogram_functions.h"
#include "pdf/document_metadata.h"
namespace chrome_pdf {
namespace {
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class PdfHasAttachment {
kNo = 0,
kYes = 1,
kMaxValue = kYes,
};
} // namespace
MetricsHandler::MetricsHandler() = default;
MetricsHandler::~MetricsHandler() = default;
void MetricsHandler::RecordDocumentMetrics(const DocumentMetadata& metadata) {
base::UmaHistogramEnumeration("PDF.Version", metadata.version);
base::UmaHistogramCustomCounts("PDF.PageCount", metadata.page_count, 1,
1000000, 50);
base::UmaHistogramEnumeration(
"PDF.HasAttachment", metadata.has_attachments ? PdfHasAttachment::kYes
: PdfHasAttachment::kNo);
base::UmaHistogramEnumeration("PDF.FormType", metadata.form_type);
}
void MetricsHandler::RecordAccessibilityIsDocTagged(bool is_tagged) {
base::UmaHistogramBoolean("Accessibility.PDF.IsPDFTagged", is_tagged);
}
} // namespace chrome_pdf