87cdeda93c
A future patch will port LibSyntax away from UTF-32. The less code that needs to be ported, the easier that will be.
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2020-2022, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Noncopyable.h>
|
|
#include <LibGfx/Palette.h>
|
|
#include <LibSyntax/Document.h>
|
|
#include <LibSyntax/HighlighterClient.h>
|
|
#include <LibSyntax/Language.h>
|
|
|
|
namespace Syntax {
|
|
|
|
class Highlighter {
|
|
AK_MAKE_NONCOPYABLE(Highlighter);
|
|
AK_MAKE_NONMOVABLE(Highlighter);
|
|
|
|
public:
|
|
virtual ~Highlighter() = default;
|
|
|
|
virtual Language language() const = 0;
|
|
virtual void rehighlight(Palette const&) = 0;
|
|
|
|
void attach(HighlighterClient&);
|
|
void detach();
|
|
|
|
template<typename T>
|
|
bool fast_is() const = delete;
|
|
|
|
protected:
|
|
Highlighter() = default;
|
|
|
|
// FIXME: This should be WeakPtr somehow
|
|
HighlighterClient* m_client { nullptr };
|
|
};
|
|
|
|
class ProxyHighlighterClient final : public Syntax::HighlighterClient {
|
|
public:
|
|
ProxyHighlighterClient(TextPosition start, u64 nested_kind_start_value, StringView source)
|
|
: m_text(source)
|
|
, m_start(start)
|
|
, m_nested_kind_start_value(nested_kind_start_value)
|
|
{
|
|
}
|
|
|
|
Vector<TextDocumentSpan> corrected_spans() const
|
|
{
|
|
Vector<TextDocumentSpan> spans { m_spans };
|
|
for (auto& entry : spans) {
|
|
entry.range.start() = {
|
|
entry.range.start().line() + m_start.line(),
|
|
entry.range.start().line() == 0 ? entry.range.start().column() + m_start.column() : entry.range.start().column(),
|
|
};
|
|
entry.range.end() = {
|
|
entry.range.end().line() + m_start.line(),
|
|
entry.range.end().line() == 0 ? entry.range.end().column() + m_start.column() : entry.range.end().column(),
|
|
};
|
|
if (entry.data != (u64)-1)
|
|
entry.data += m_nested_kind_start_value;
|
|
}
|
|
|
|
return spans;
|
|
}
|
|
|
|
private:
|
|
virtual StringView highlighter_did_request_text() const override { return m_text; }
|
|
virtual void highlighter_did_set_spans(Vector<TextDocumentSpan> spans) override { m_spans = move(spans); }
|
|
|
|
Vector<TextDocumentSpan> m_spans;
|
|
StringView m_text;
|
|
TextPosition m_start;
|
|
u64 m_nested_kind_start_value { 0 };
|
|
};
|
|
|
|
}
|