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// 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.
#include "chrome/browser/android/contextualsearch/contextual_search_field_trial.h"
#include "base/command_line.h"
#include "base/strings/string_number_conversions.h"
#include "components/variations/variations_associated_data.h"
namespace {
const char kContextualSearchFieldTrialName[] = "ContextualSearch";
const char kFalseValue[] = "false";
const char kAnyNonEmptyValue[] = "1";
const char kContextualSearchResolverUrl[] = "contextual-search-resolver-url";
const char kContextualSearchSurroundingSizeParamName[] = "surrounding_size";
const char kContextualSearchIcingSurroundingSizeParamName[] =
"icing_surrounding_size";
const char kContextualSearchSendURLDisabledParamName[] = "disable_send_url";
const char kContextualSearchDecodeMentionsDisabledParamName[] =
"disable_decode_mentions";
// The default size of the content surrounding the selection to gather, allowing
// room for other parameters.
const int kContextualSearchDefaultContentSize = 1536;
} // namespace
// static
const int
ContextualSearchFieldTrial::kContextualSearchDefaultIcingSurroundingSize =
400;
ContextualSearchFieldTrial::ContextualSearchFieldTrial()
: is_resolver_url_prefix_cached_(false),
is_surrounding_size_cached_(false),
surrounding_size_(0),
is_icing_surrounding_size_cached_(false),
icing_surrounding_size_(0),
is_send_base_page_url_disabled_cached_(false),
is_send_base_page_url_disabled_(false),
is_decode_mentions_disabled_cached_(false),
is_decode_mentions_disabled_(false) {}
ContextualSearchFieldTrial::~ContextualSearchFieldTrial() {}
std::string ContextualSearchFieldTrial::GetResolverURLPrefix() {
if (!is_resolver_url_prefix_cached_) {
is_resolver_url_prefix_cached_ = true;
resolver_url_prefix_ = GetSwitch(kContextualSearchResolverUrl);
if (resolver_url_prefix_.empty())
resolver_url_prefix_ = GetParam(kContextualSearchResolverUrl);
}
return resolver_url_prefix_;
}
int ContextualSearchFieldTrial::GetSurroundingSize() {
return GetIntParamValueOrDefault(kContextualSearchSurroundingSizeParamName,
kContextualSearchDefaultContentSize,
&is_surrounding_size_cached_,
&surrounding_size_);
}
int ContextualSearchFieldTrial::GetIcingSurroundingSize() {
return GetIntParamValueOrDefault(
kContextualSearchIcingSurroundingSizeParamName,
kContextualSearchDefaultIcingSurroundingSize,
&is_icing_surrounding_size_cached_, &icing_surrounding_size_);
}
bool ContextualSearchFieldTrial::IsSendBasePageURLDisabled() {
return GetBooleanParam(kContextualSearchSendURLDisabledParamName,
&is_send_base_page_url_disabled_cached_,
&is_send_base_page_url_disabled_);
}
bool ContextualSearchFieldTrial::IsDecodeMentionsDisabled() {
return GetBooleanParam(kContextualSearchDecodeMentionsDisabledParamName,
&is_decode_mentions_disabled_cached_,
&is_decode_mentions_disabled_);
}
bool ContextualSearchFieldTrial::GetBooleanParam(const std::string& name,
bool* is_value_cached,
bool* cached_value) {
if (!*is_value_cached) {
*is_value_cached = true;
std::string string_value = GetSwitch(name);
// A switch with an empty value is true.
bool has_switch = HasSwitch(name);
if (has_switch && string_value.empty())
string_value = kAnyNonEmptyValue;
if (!has_switch)
string_value = GetParam(name);
*cached_value = !string_value.empty() && string_value != kFalseValue;
}
return *cached_value;
}
int ContextualSearchFieldTrial::GetIntParamValueOrDefault(
const std::string& name,
const int default_value,
bool* is_value_cached,
int* cached_value) {
if (!*is_value_cached) {
*is_value_cached = true;
std::string param_string = GetSwitch(name);
if (param_string.empty())
param_string = GetParam(name);
int param_int;
if (!param_string.empty() && base::StringToInt(param_string, ¶m_int))
*cached_value = param_int;
else
*cached_value = default_value;
}
return *cached_value;
}
bool ContextualSearchFieldTrial::HasSwitch(const std::string& name) {
return base::CommandLine::ForCurrentProcess()->HasSwitch(name);
}
std::string ContextualSearchFieldTrial::GetSwitch(const std::string& name) {
if (!HasSwitch(name))
return std::string();
else
return base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(name);
}
std::string ContextualSearchFieldTrial::GetParam(const std::string& name) {
return variations::GetVariationParamValue(kContextualSearchFieldTrialName,
name);
}
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