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LibGUI: Assign folding regions for GML files

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Each {} block is now treated as a folding region, so that they can be
collapsed and expanded in TextEditor, GML Playground, HackStudio, and
anywhere else that uses the syntax highlighter. :^)
This commit is contained in:
Sam Atkins 2023-02-23 15:35:03 +00:00 • committed by Andreas Kling
parent d169af117d
commit cac14a3f0a
1 changed files with 19 additions and 0 deletions
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19
Userland/Libraries/LibGUI/GML/SyntaxHighlighter.cpp
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@ -1,6 +1,7 @@
/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
* Copyright (c) 2023, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -44,7 +45,11 @@ void SyntaxHighlighter::rehighlight(Palette const& palette)
Lexer lexer(text);
auto tokens = lexer.lex();
Vector<Token> folding_region_start_tokens;
Vector<GUI::TextDocumentSpan> spans;
Vector<GUI::TextDocumentFoldingRegion> folding_regions;
for (auto& token : tokens) {
GUI::TextDocumentSpan span;
span.range.set_start({ token.m_start.line, token.m_start.column });
@ -55,8 +60,22 @@ void SyntaxHighlighter::rehighlight(Palette const& palette)
span.is_skippable = false;
span.data = static_cast<u64>(token.m_type);
spans.append(span);
// Create folding regions for {} blocks
if (token.m_type == Token::Type::LeftCurly) {
folding_region_start_tokens.append(token);
} else if (token.m_type == Token::Type::RightCurly) {
if (!folding_region_start_tokens.is_empty()) {
auto left_curly = folding_region_start_tokens.take_last();
GUI::TextDocumentFoldingRegion region;
region.range.set_start({ left_curly.m_end.line, left_curly.m_end.column });
region.range.set_end({ token.m_start.line, token.m_start.column });
folding_regions.append(region);
}
}
}
m_client->do_set_spans(move(spans));
m_client->do_set_folding_regions(move(folding_regions));
m_has_brace_buddies = false;
highlight_matching_token_pair();