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/*
* Copyright (c) 2020-2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGUI/Forward.h>
#include <LibGUI/Label.h>
#include <LibGUI/TableView.h>
#include <LibGUI/TextEditor.h>
#include <LibGUI/Window.h>
#include <LibIPC/Decoder.h>
namespace GUI {
class AutocompleteProvider {
AK_MAKE_NONCOPYABLE(AutocompleteProvider);
AK_MAKE_NONMOVABLE(AutocompleteProvider);
public:
virtual ~AutocompleteProvider() = default;
enum class Language {
Unspecified,
Cpp,
};
struct Entry {
String completion;
size_t partial_input_length { 0 };
Language language { Language::Unspecified };
String display_text {};
enum class HideAutocompleteAfterApplying {
No,
Yes,
};
HideAutocompleteAfterApplying hide_autocomplete_after_applying { HideAutocompleteAfterApplying::Yes };
};
struct ProjectLocation {
String file;
size_t line { 0 };
size_t column { 0 };
bool operator==(const ProjectLocation&) const;
};
enum class DeclarationType {
Function,
Struct,
Class,
Variable,
PreprocessorDefinition,
Namespace,
Member,
};
struct Declaration {
String name;
ProjectLocation position;
DeclarationType type;
String scope;
bool operator==(const Declaration&) const;
};
virtual void provide_completions(Function<void(Vector<Entry>)>) = 0;
#define FOR_EACH_SEMANTIC_TYPE \
__SEMANTIC(Unknown) \
__SEMANTIC(Regular) \
__SEMANTIC(Keyword) \
__SEMANTIC(Type) \
__SEMANTIC(Identifier) \
__SEMANTIC(String) \
__SEMANTIC(Number) \
__SEMANTIC(IncludePath) \
__SEMANTIC(PreprocessorStatement) \
__SEMANTIC(Comment) \
__SEMANTIC(Whitespace) \
__SEMANTIC(Function) \
__SEMANTIC(Variable) \
__SEMANTIC(CustomType) \
__SEMANTIC(Namespace) \
__SEMANTIC(Member) \
__SEMANTIC(Parameter) \
__SEMANTIC(PreprocessorMacro)
struct TokenInfo {
enum class SemanticType : u32 {
#define __SEMANTIC(x) x,
FOR_EACH_SEMANTIC_TYPE
#undef __SEMANTIC
} type { SemanticType::Unknown };
size_t start_line { 0 };
size_t start_column { 0 };
size_t end_line { 0 };
size_t end_column { 0 };
static constexpr const char* type_to_string(SemanticType t)
{
switch (t) {
#define __SEMANTIC(x) \
case SemanticType::x: \
return #x;
FOR_EACH_SEMANTIC_TYPE
#undef __SEMANTIC
}
VERIFY_NOT_REACHED();
};
};
void attach(TextEditor& editor)
{
VERIFY(!m_editor);
m_editor = editor;
}
void detach() { m_editor.clear(); }
protected:
AutocompleteProvider() = default;
WeakPtr<TextEditor> m_editor;
};
class AutocompleteBox final {
public:
explicit AutocompleteBox(TextEditor&);
~AutocompleteBox() = default;
void update_suggestions(Vector<AutocompleteProvider::Entry>&& suggestions);
bool is_visible() const;
void show(Gfx::IntPoint suggestion_box_location);
void close();
bool has_suggestions() { return m_suggestion_view->model()->row_count() > 0; }
void next_suggestion();
void previous_suggestion();
AutocompleteProvider::Entry::HideAutocompleteAfterApplying apply_suggestion();
private:
WeakPtr<TextEditor> m_editor;
RefPtr<GUI::Window> m_popup_window;
RefPtr<GUI::TableView> m_suggestion_view;
RefPtr<GUI::Label> m_no_suggestions_view;
};
}
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