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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "tools/accessibility/inspect/ax_tree_server.h"
#include <iostream>
#include <string>
#include "base/at_exit.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/run_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread_restrictions.h"
#include "base/values.h"
#include "content/public/browser/ax_inspect_factory.h"
#include "ui/accessibility/platform/inspect/ax_inspect_scenario.h"
#include "ui/accessibility/platform/inspect/ax_script_instruction.h"
using ui::AXTreeFormatter;
using ui::AXTreeSelector;
namespace content {
AXTreeServer::AXTreeServer(const AXTreeSelector& selector,
const ui::AXInspectScenario& scenario,
ui::AXApiType::Type api)
: error(false) {
// If an API is not supplied, use the default API for this platform.
std::unique_ptr<AXTreeFormatter> formatter =
api != ui::AXApiType::kNone ? AXInspectFactory::CreateFormatter(api)
: AXInspectFactory::CreatePlatformFormatter();
// If there are script instructions, execute the script.
if (!scenario.script_instructions.empty()) {
std::string results = formatter->EvaluateScript(selector, scenario);
if (results.empty()) {
LOG(ERROR) << "Failed to find application or execute script.";
error = true;
return;
}
printf("%s", results.c_str());
return;
}
// Otherwise, dump the tree.
// Use user provided filters with the default filter set.
std::vector<ui::AXPropertyFilter> property_filters_ext(
{{"AXRoleDescription", ui::AXPropertyFilter::ALLOW}});
property_filters_ext.insert(property_filters_ext.end(),
scenario.property_filters.begin(),
scenario.property_filters.end());
formatter->SetPropertyFilters(property_filters_ext,
AXTreeFormatter::kFiltersDefaultSet);
// Get accessibility tree as a nested dictionary.
base::Value::Dict dict = formatter->BuildTreeForSelector(selector);
if (dict.empty()) {
LOG(ERROR) << "Failed to get accessibility tree.";
error = true;
return;
}
// Write to console.
printf("%s", formatter->FormatTree(dict).c_str());
}
} // namespace content
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