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/*
* Copyright (c) 2020, the SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Noncopyable.h>
#include <AK/WeakPtr.h>
#include <LibGUI/TextDocument.h>
#include <LibGfx/Palette.h>
namespace GUI {
enum class SyntaxLanguage {
PlainText,
Cpp,
Javascript
};
struct TextStyle {
Color color;
const Gfx::Font* font { nullptr };
};
class SyntaxHighlighter {
AK_MAKE_NONCOPYABLE(SyntaxHighlighter);
AK_MAKE_NONMOVABLE(SyntaxHighlighter);
public:
virtual ~SyntaxHighlighter();
virtual SyntaxLanguage language() const = 0;
virtual void rehighlight(Gfx::Palette) = 0;
virtual void highlight_matching_token_pair();
virtual bool is_identifier(void*) const { return false; };
virtual bool is_navigatable(void*) const { return false; };
void attach(TextEditor& editor);
void detach();
void cursor_did_change();
protected:
SyntaxHighlighter() {}
WeakPtr<TextEditor> m_editor;
struct MatchingTokenPair {
void* open;
void* close;
};
virtual Vector<MatchingTokenPair> matching_token_pairs() const = 0;
virtual bool token_types_equal(void*, void*) const = 0;
struct BuddySpan {
int index { -1 };
GUI::TextDocumentSpan span_backup;
};
bool m_has_brace_buddies { false };
BuddySpan m_brace_buddies[2];
};
}
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