diff options
Diffstat (limited to 'support/texlab/src/features/completion/color_model.rs')
-rw-r--r-- | support/texlab/src/features/completion/color_model.rs | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/support/texlab/src/features/completion/color_model.rs b/support/texlab/src/features/completion/color_model.rs new file mode 100644 index 0000000000..f7f09b6367 --- /dev/null +++ b/support/texlab/src/features/completion/color_model.rs @@ -0,0 +1,188 @@ +use cancellation::CancellationToken; +use cstree::TextRange; +use lsp_types::CompletionParams; + +use crate::{ + features::cursor::CursorContext, + syntax::{latex, CstNode}, +}; + +use super::types::{InternalCompletionItem, InternalCompletionItemData}; + +const MODEL_NAMES: &[&str] = &["gray", "rgb", "RGB", "HTML", "cmyk"]; + +pub fn complete_color_models<'a>( + context: &'a CursorContext<CompletionParams>, + items: &mut Vec<InternalCompletionItem<'a>>, + cancellation_token: &CancellationToken, +) -> Option<()> { + cancellation_token.result().ok()?; + + let token = context.cursor.as_latex()?; + let range = if token.kind() == latex::WORD { + token.text_range() + } else { + TextRange::empty(context.offset) + }; + + check_color_definition(context, token) + .or_else(|| check_color_definition_set(context, token))?; + + for name in MODEL_NAMES { + items.push(InternalCompletionItem::new( + range, + InternalCompletionItemData::ColorModel { name }, + )); + } + + Some(()) +} + +fn check_color_definition( + context: &CursorContext<CompletionParams>, + token: &latex::SyntaxToken, +) -> Option<()> { + let group = latex::CurlyGroupWord::cast(token.parent()) + .filter(|group| context.is_inside_latex_curly(group))?; + let definition = latex::ColorDefinition::cast(group.syntax().parent()?)?; + definition + .model() + .filter(|model| model.syntax().text_range() == group.syntax().text_range())?; + Some(()) +} + +fn check_color_definition_set( + context: &CursorContext<CompletionParams>, + token: &latex::SyntaxToken, +) -> Option<()> { + let group = latex::CurlyGroupWordList::cast(token.parent()) + .filter(|group| context.is_inside_latex_curly(group))?; + let definition = latex::ColorSetDefinition::cast(group.syntax().parent()?)?; + definition + .model_list() + .filter(|model| model.syntax().text_range() == group.syntax().text_range())?; + Some(()) +} + +#[cfg(test)] +mod tests { + use cstree::TextRange; + + use crate::features::testing::FeatureTester; + + use super::*; + + #[test] + fn test_empty_latex_document() { + let request = FeatureTester::builder() + .files(vec![("main.tex", "")]) + .main("main.tex") + .line(0) + .character(0) + .build() + .completion(); + + let context = CursorContext::new(request); + let mut actual_items = Vec::new(); + complete_color_models(&context, &mut actual_items, CancellationToken::none()); + + assert!(actual_items.is_empty()); + } + + #[test] + fn test_empty_bibtex_document() { + let request = FeatureTester::builder() + .files(vec![("main.bib", "")]) + .main("main.bib") + .line(0) + .character(0) + .build() + .completion(); + + let context = CursorContext::new(request); + let mut actual_items = Vec::new(); + complete_color_models(&context, &mut actual_items, CancellationToken::none()); + + assert!(actual_items.is_empty()); + } + + #[test] + fn test_definition_simple() { + let request = FeatureTester::builder() + .files(vec![("main.tex", "\\definecolor{foo}{}")]) + .main("main.tex") + .line(0) + .character(18) + .build() + .completion(); + + let context = CursorContext::new(request); + let mut actual_items = Vec::new(); + complete_color_models(&context, &mut actual_items, CancellationToken::none()); + + assert!(!actual_items.is_empty()); + for item in actual_items { + assert_eq!(item.range, TextRange::new(18.into(), 18.into())); + } + } + + #[test] + fn test_definition_open_brace() { + let request = FeatureTester::builder() + .files(vec![("main.tex", "\\definecolor{foo}{")]) + .main("main.tex") + .line(0) + .character(18) + .build() + .completion(); + + let context = CursorContext::new(request); + let mut actual_items = Vec::new(); + complete_color_models(&context, &mut actual_items, CancellationToken::none()); + + assert!(!actual_items.is_empty()); + for item in actual_items { + assert_eq!(item.range, TextRange::new(18.into(), 18.into())); + } + } + + #[test] + fn test_definition_set_simple() { + let request = FeatureTester::builder() + .files(vec![("main.tex", "\\definecolorset{}")]) + .main("main.tex") + .line(0) + .character(16) + .build() + .completion(); + + let context = CursorContext::new(request); + let mut actual_items = Vec::new(); + complete_color_models(&context, &mut actual_items, CancellationToken::none()); + + assert!(!actual_items.is_empty()); + for item in actual_items { + assert_eq!(item.range, TextRange::new(16.into(), 16.into())); + } + } + + #[test] + fn test_definition_set_open_brace() { + let request = FeatureTester::builder() + .files(vec![("main.tex", "\\definecolorset{")]) + .main("main.tex") + .line(0) + .character(16) + .build() + .completion(); + + let context = CursorContext::new(request); + let mut actual_items = Vec::new(); + complete_color_models(&context, &mut actual_items, CancellationToken::none()); + + assert!(!actual_items.is_empty()); + for item in actual_items { + assert_eq!(item.range, TextRange::new(16.into(), 16.into())); + } + } +} |