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// Copyright 2022 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.
#include "pdf/metrics_handler.h"
#include <vector>
#include "base/metrics/histogram_functions.h"
#include "pdf/document_metadata.h"
#include "pdf/file_extension.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,
};
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class PdfIsTagged {
kNo = 0,
kYes = 1,
kMaxValue = kYes,
};
} // namespace
MetricsHandler::MetricsHandler() = default;
MetricsHandler::~MetricsHandler() = default;
void MetricsHandler::RecordAttachmentTypes(
const std::vector<DocumentAttachmentInfo>& attachments) {
for (const auto& info : attachments) {
base::UmaHistogramEnumeration("PDF.AttachmentType",
FileNameToExtensionIndex(info.name));
}
}
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.IsTagged", metadata.tagged ? PdfIsTagged::kYes : PdfIsTagged::kNo);
base::UmaHistogramEnumeration("PDF.FormType", metadata.form_type);
}
} // namespace chrome_pdf
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