serenity/Userland/Applications/Spreadsheet/CellSyntaxHighlighter.cpp

/*
 * Copyright (c) 2020, the SerenityOS developers.
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include "CellSyntaxHighlighter.h"
#include <LibGUI/TextEditor.h>
#include <LibGfx/Palette.h>
#include <LibJS/Lexer.h>

namespace Spreadsheet {

void CellSyntaxHighlighter::rehighlight(const Palette& palette)
{
    auto text = m_client->get_text();
    m_client->spans().clear();
    if (!text.starts_with('=')) {
        m_client->do_update();
        return;
    }

    JS::SyntaxHighlighter::rehighlight(palette);

    // Highlight the '='
    m_client->spans().empend(
        GUI::TextRange { { 0, 0 }, { 0, 1 } },
        Gfx::TextAttributes {
            palette.syntax_keyword(),
            Optional<Color> {},
            false,
            false,
        },
        (u64)-1,
        false);

    if (m_cell && m_cell->exception()) {
        auto& traceback = m_cell->exception()->traceback();
        auto& range = traceback.first().source_range;
        GUI::TextRange text_range { { range.start.line - 1, range.start.column }, { range.end.line - 1, range.end.column } };
        m_client->spans().prepend(
            GUI::TextDocumentSpan {
                text_range,
                Gfx::TextAttributes {
                    Color::Black,
                    Color::Red,
                    false,
                    false,
                },
                (u64)-1,
                false });
    }
    m_client->do_update();
}

CellSyntaxHighlighter::~CellSyntaxHighlighter()
{
}

}