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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/accessibility/ax_mode_histogram_logger.h"
#include "base/metrics/histogram_functions.h"
namespace ui {
namespace {
void RecordModeFlag(AXHistogramPrefix prefix,
AXMode::ModeFlagHistogramValue flag) {
switch (prefix) {
case AXHistogramPrefix::kNone:
base::UmaHistogramEnumeration(
"Accessibility.ModeFlag", flag,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_MAX);
break;
case AXHistogramPrefix::kBlink:
base::UmaHistogramEnumeration(
"Blink.Accessibility.ModeFlag", flag,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_MAX);
}
}
} // anonymous namespace
void RecordAccessibilityModeHistograms(AXHistogramPrefix prefix,
AXMode mode,
AXMode previous_mode) {
if (mode == previous_mode) {
return;
}
// Record individual mode flags transitioning from unset to set state.
int new_mode_flags = mode.flags() & (~previous_mode.flags());
if (new_mode_flags) {
if (new_mode_flags & AXMode::kNativeAPIs) {
RecordModeFlag(prefix,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_NATIVE_APIS);
}
if (new_mode_flags & AXMode::kWebContents) {
RecordModeFlag(prefix,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_WEB_CONTENTS);
}
if (new_mode_flags & AXMode::kInlineTextBoxes) {
RecordModeFlag(
prefix,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_INLINE_TEXT_BOXES);
}
if (new_mode_flags & AXMode::kExtendedProperties) {
RecordModeFlag(
prefix,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_EXTENDED_PROPERTIES);
}
if (new_mode_flags & AXMode::kHTML) {
RecordModeFlag(prefix, AXMode::ModeFlagHistogramValue::UMA_AX_MODE_HTML);
}
if (new_mode_flags & AXMode::kHTMLMetadata) {
RecordModeFlag(prefix,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_HTML_METADATA);
}
if (new_mode_flags & AXMode::kLabelImages) {
RecordModeFlag(prefix,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_LABEL_IMAGES);
}
if (new_mode_flags & AXMode::kPDFPrinting) {
RecordModeFlag(prefix, AXMode::ModeFlagHistogramValue::UMA_AX_MODE_PDF);
}
if (new_mode_flags & AXMode::kAnnotateMainNode) {
RecordModeFlag(
prefix,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_ANNOTATE_MAIN_NODE);
}
// ui::AXMode::kFromPlatform is unconditionally filtered out and is
// therefore never present in `mode`.
CHECK(!mode.has_mode(ui::AXMode::kFromPlatform));
if (new_mode_flags & AXMode::kScreenReader) {
RecordModeFlag(prefix,
AXMode::ModeFlagHistogramValue::UMA_AX_MODE_SCREEN_READER);
}
}
// Record forms control flag transitioning from unset to set.
int new_filter_mode_flags =
mode.filter_flags() & (~previous_mode.filter_flags());
if (new_filter_mode_flags & AXMode::kFormsAndLabelsOnly) {
switch (prefix) {
case AXHistogramPrefix::kNone:
base::UmaHistogramBoolean(
"Accessibility.ExperimentalModeFlag.FormControls", true);
break;
case AXHistogramPrefix::kBlink:
base::UmaHistogramBoolean(
"Blink.Accessibility.ExperimentalModeFlag.FormControls", true);
}
}
// Record exact match to a named bundle.
AXMode::BundleHistogramValue bundle;
if (mode == kAXModeBasic) {
bundle = AXMode::BundleHistogramValue::kBasic;
} else if (mode == kAXModeWebContentsOnly) {
bundle = AXMode::BundleHistogramValue::kWebContentsOnly;
} else if (mode == kAXModeComplete) {
bundle = AXMode::BundleHistogramValue::kComplete;
} else if (mode == kAXModeFormControls) {
bundle = AXMode::BundleHistogramValue::kFormControls;
} else {
bundle = AXMode::BundleHistogramValue::kUnnamed;
}
switch (prefix) {
case AXHistogramPrefix::kNone:
base::UmaHistogramEnumeration("Accessibility.Bundle", bundle);
break;
case AXHistogramPrefix::kBlink:
base::UmaHistogramEnumeration("Blink.Accessibility.Bundle", bundle);
}
}
} // namespace ui
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