mirror of
https://github.com/Chatterino/chatterino2.git
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56 lines
2 KiB
C++
56 lines
2 KiB
C++
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#pragma once
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#include "controllers/completion/sources/Source.hpp"
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#include <QObject>
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#include <QString>
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#include <QStringListModel>
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#include <optional>
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namespace chatterino {
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class Channel;
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/// @brief TabCompletionModel is a QStringListModel intended to provide tab
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/// completion to a ResizingTextInput. The model automatically selects a completion
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/// source based on the current query before updating the results.
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class TabCompletionModel : public QStringListModel
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{
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public:
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/// @brief Initializes a new TabCompletionModel bound to a Channel.
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/// The reference to the Channel must live as long as the TabCompletionModel.
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/// @param channel Channel reference
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/// @param parent Model parent
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explicit TabCompletionModel(Channel &channel, QObject *parent);
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/// @brief Updates the model based on the completion query
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/// @param query Completion query
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/// @param isFirstWord Whether the completion is the first word in the input
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void updateResults(const QString &query, bool isFirstWord = false);
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private:
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enum class SourceKind { Emote, User, Command, EmoteAndUser };
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/// @brief Updates the internal completion source based on the current query.
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/// The completion source will only change if the deduced completion kind
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/// changes (see deduceSourceKind).
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/// @param query Completion query
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void updateSourceFromQuery(const QString &query);
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/// @brief Attempts to deduce the source kind from the current query. If the
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/// bound Channel is not a TwitchChannel or if the query is too short, no
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/// query type will be deduced to prevent completions.
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/// @param query Completion query
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/// @return An optional SourceKind deduced from the query
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std::optional<SourceKind> deduceSourceKind(const QString &query) const;
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std::unique_ptr<completion::Source> buildSource(SourceKind kind) const;
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Channel &channel_;
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std::unique_ptr<completion::Source> source_{};
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std::optional<SourceKind> sourceKind_{};
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};
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} // namespace chatterino
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