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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/quick_insert/model/quick_insert_emoji_suggester.h"
#include <algorithm>
#include <string>
#include <string_view>
#include <utility>
#include <vector>
#include "ash/quick_insert/model/quick_insert_emoji_history_model.h"
#include "ash/quick_insert/quick_insert_search_result.h"
#include "base/check.h"
#include "base/check_deref.h"
#include "base/containers/to_vector.h"
#include "base/notreached.h"
#include "base/strings/utf_string_conversions.h"
#include "base/time/time.h"
#include "ui/base/emoji/emoji_panel_helper.h"
namespace ash {
namespace {
using HistoryItem = QuickInsertEmojiHistoryModel::EmojiHistoryItem;
constexpr std::string_view kDefaultSuggestedEmojis[] = {"🙂", "😂", "🤔",
"😢", "👏", "👍"};
constexpr size_t kSuggestedEmojisSize = 6u;
bool ContainsEmoji(const std::vector<HistoryItem>& vec,
std::string_view emoji) {
return std::ranges::any_of(vec, [emoji](const HistoryItem& item) {
return item.category == ui::EmojiPickerCategory::kEmojis &&
item.text == emoji;
});
}
} // namespace
QuickInsertEmojiSuggester::QuickInsertEmojiSuggester(
QuickInsertEmojiHistoryModel* history_model,
GetNameCallback get_name)
: get_name_(std::move(get_name)),
history_model_(CHECK_DEREF(history_model)) {
CHECK(!get_name_.is_null());
}
QuickInsertEmojiSuggester::~QuickInsertEmojiSuggester() = default;
std::vector<QuickInsertEmojiResult>
QuickInsertEmojiSuggester::GetSuggestedEmoji() const {
std::vector<HistoryItem> recent_emojis =
history_model_->GetRecentEmojis(ui::EmojiPickerCategory::kEmojis);
std::vector<HistoryItem> recent_emoticons =
history_model_->GetRecentEmojis(ui::EmojiPickerCategory::kEmoticons);
std::vector<HistoryItem> recent_symbols =
history_model_->GetRecentEmojis(ui::EmojiPickerCategory::kSymbols);
recent_emojis.reserve(std::max(
recent_emojis.size() + recent_emoticons.size() + recent_symbols.size(),
kSuggestedEmojisSize));
recent_emojis.insert(recent_emojis.end(), recent_emoticons.begin(),
recent_emoticons.end());
recent_emojis.insert(recent_emojis.end(), recent_symbols.begin(),
recent_symbols.end());
std::sort(recent_emojis.begin(), recent_emojis.end(),
[](const HistoryItem& a, const HistoryItem& b) {
return a.timestamp > b.timestamp;
});
// Fill with default emojis if history is not enough.
for (std::string_view emoji : kDefaultSuggestedEmojis) {
if (recent_emojis.size() >= kSuggestedEmojisSize) {
break;
}
if (!ContainsEmoji(recent_emojis, emoji)) {
recent_emojis.push_back({.text = std::string(emoji),
.category = ui::EmojiPickerCategory::kEmojis,
.timestamp = base::Time()});
}
}
return base::ToVector(recent_emojis, [this](const HistoryItem& item) {
switch (item.category) {
case ui::EmojiPickerCategory::kEmojis:
return QuickInsertEmojiResult::Emoji(
base::UTF8ToUTF16(item.text),
base::UTF8ToUTF16(get_name_.Run(item.text)));
case ui::EmojiPickerCategory::kEmoticons:
return QuickInsertEmojiResult::Emoticon(
base::UTF8ToUTF16(item.text),
base::UTF8ToUTF16(get_name_.Run(item.text)));
case ui::EmojiPickerCategory::kSymbols:
return QuickInsertEmojiResult::Symbol(
base::UTF8ToUTF16(item.text),
base::UTF8ToUTF16(get_name_.Run(item.text)));
case ui::EmojiPickerCategory::kGifs:
NOTREACHED();
}
});
}
} // namespace ash
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