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// Copyright (c) 2013 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.
//
// The |Misspelling| object stores the misspelling, a spellcheck suggestion for
// it, and user's action on it. The misspelling is stored as |context|,
// |location|, and |length| instead of only misspelled text, because the
// spellcheck algorithm uses the context.
#include "components/spellcheck/browser/misspelling.h"
#include "base/strings/string_number_conversions.h"
#include "base/values.h"
namespace {
// Builds a value from a list of spellcheck suggestions.
std::unique_ptr<base::Value> BuildSuggestionsValue(
const std::vector<base::string16>& list) {
std::unique_ptr<base::ListValue> result(new base::ListValue);
result->AppendStrings(list);
return std::move(result);
}
// Builds a value from a spellcheck action.
std::unique_ptr<base::Value> BuildUserActionValue(
const SpellcheckAction& action) {
std::unique_ptr<base::ListValue> result(new base::ListValue);
result->Append(action.Serialize());
return std::move(result);
}
} // namespace
Misspelling::Misspelling()
: location(0), length(0), hash(0), timestamp(base::Time::Now()) {}
Misspelling::Misspelling(const base::string16& context,
size_t location,
size_t length,
const std::vector<base::string16>& suggestions,
uint32_t hash)
: context(context),
location(location),
length(length),
suggestions(suggestions),
hash(hash),
timestamp(base::Time::Now()) {}
Misspelling::Misspelling(const Misspelling& other) = default;
Misspelling::~Misspelling() {}
std::unique_ptr<base::DictionaryValue> SerializeMisspelling(
const Misspelling& misspelling) {
std::unique_ptr<base::DictionaryValue> result(new base::DictionaryValue);
result->SetString(
"timestamp",
base::Int64ToString(static_cast<long>(misspelling.timestamp.ToJsTime())));
result->SetInteger("misspelledLength", misspelling.length);
result->SetInteger("misspelledStart", misspelling.location);
result->SetString("originalText", misspelling.context);
result->SetString("suggestionId", base::UintToString(misspelling.hash));
result->Set("suggestions",
BuildSuggestionsValue(misspelling.suggestions).release());
result->Set("userActions",
BuildUserActionValue(misspelling.action).release());
return result;
}
base::string16 GetMisspelledString(const Misspelling& misspelling) {
// Feedback sender does not create Misspelling objects for spellcheck results
// that are out-of-bounds of checked text length.
if (misspelling.location > misspelling.context.length())
return base::string16();
return misspelling.context.substr(misspelling.location, misspelling.length);
}
size_t ApproximateSerializedSize(const Misspelling& misspelling) {
// Estimated by eyeballing JSON overhead.
const size_t kNumberOfOverheadBytes = 180;
size_t result = misspelling.context.length() + kNumberOfOverheadBytes;
for (const base::string16& suggestion : misspelling.suggestions)
result += suggestion.size();
return result;
}
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