Disable `additionalTextEdits` for completion items by default (#160)

CHANGELOG.md

@@ -8,6 +8,8 @@ All notable changes to this project will be documented in this file.
 
 * New `--date` flag for `zk new` to set the current date manually.
 * [#144](https://github.com/mickael-menu/zk/issues/144) LSP auto-completion of YAML frontmatter tags.
+* [zk-nvim#26](https://github.com/mickael-menu/zk-nvim/issues/26) The LSP server doesn't use `additionalTextEdits` anymore to remove the trigger characters when completing links.
+    * You can customize the default behavior with the [`use-additional-text-edits` configuration key](docs/config-lsp.md).
 
 ### Fixed
 

docs/config-lsp.md

@@ -6,11 +6,12 @@ The `[lsp]` [configuration file](config.md) section provides settings to fine-tu
 
 Customize how completion items appear in your editor when auto-completing links with the `[lsp.completion]` sub-section.
 
-| Setting            | Type       | Description                                                                |
-|--------------------|------------|----------------------------------------------------------------------------|
-| `note-label`       | `template` | Label displayed in the completion pop-up for each note                     |
-| `note-filter-text` | `template` | Text used as a source when filtering the completion pop-up with keystrokes |
-| `note-detail`      | `template` | Additional information about a completion item                             |
+| Setting                     | Type       | Description                                                                           |
+|-----------------------------|------------|---------------------------------------------------------------------------------------|
+| `note-label`                | `template` | Label displayed in the completion pop-up for each note                                |
+| `note-filter-text`          | `template` | Text used as a source when filtering the completion pop-up with keystrokes            |
+| `note-detail`               | `template` | Additional information about a completion item                                        |
+| `use-additional-text-edits` | `boolean`  | Indicates whether `additionalTextEdits` will be used to remove the trigger characters |
 
 Each key accepts a [template](template.md) with the following context:
 

internal/adapter/lsp/server.go

@@ -22,13 +22,14 @@ import (
 
 // Server holds the state of the Language Server.
 type Server struct {
-	server            *glspserv.Server
-	notebooks         *core.NotebookStore
-	documents         *documentStore
-	noteContentParser core.NoteContentParser
-	templateLoader    core.TemplateLoader
-	fs                core.FileStorage
-	logger            util.Logger
+	server                 *glspserv.Server
+	notebooks              *core.NotebookStore
+	documents              *documentStore
+	noteContentParser      core.NoteContentParser
+	templateLoader         core.TemplateLoader
+	fs                     core.FileStorage
+	logger                 util.Logger
+	useAdditionalTextEdits opt.Bool
 }
 
 // ServerOpts holds the options to create a new Server.
@@ -60,12 +61,13 @@ func NewServer(opts ServerOpts) *Server {
 	}
 
 	server := &Server{
-		server:         glspServer,
-		notebooks:      opts.Notebooks,
-		documents:      newDocumentStore(fs, opts.Logger),
-		templateLoader: opts.TemplateLoader,
-		fs:             fs,
-		logger:         opts.Logger,
+		server:                 glspServer,
+		notebooks:              opts.Notebooks,
+		documents:              newDocumentStore(fs, opts.Logger),
+		templateLoader:         opts.TemplateLoader,
+		fs:                     fs,
+		logger:                 opts.Logger,
+		useAdditionalTextEdits: opt.NullBool,
 	}
 
 	var clientCapabilities protocol.ClientCapabilities
@@ -79,6 +81,15 @@ func NewServer(opts ServerOpts) *Server {
 			protocol.SetTraceValue(*params.Trace)
 		}
 
+		if params.ClientInfo != nil {
+			if params.ClientInfo.Name == "Visual Studio Code" {
+				// Visual Studio Code doesn't seem to support inl
+				// VSCode doesn't support deleting the trigger characters with
+				// the main TextEdit. We'll use additional text edits instead.
+				server.useAdditionalTextEdits = opt.True
+			}
+		}
+
 		capabilities := handler.CreateServerCapabilities()
 		capabilities.HoverProvider = true
 		capabilities.DefinitionProvider = true
@@ -792,17 +803,19 @@ func (s *Server) newCompletionItem(notebook *core.Notebook, note core.MinimalNot
 		return item, err
 	}
 
-	addTextEdits := []protocol.TextEdit{}
+	if s.useAdditionalTextEditsWithNotebook(notebook) {
+		addTextEdits := []protocol.TextEdit{}
 
-	// Some LSP clients (e.g. VSCode) don't support deleting the trigger
-	// characters with the main TextEdit. So let's add an additional
-	// TextEdit for that.
-	addTextEdits = append(addTextEdits, protocol.TextEdit{
-		NewText: "",
-		Range:   rangeFromPosition(pos, -2, 0),
-	})
+		// Some LSP clients (e.g. VSCode) don't support deleting the trigger
+		// characters with the main TextEdit. So let's add an additional
+		// TextEdit for that.
+		addTextEdits = append(addTextEdits, protocol.TextEdit{
+			NewText: "",
+			Range:   rangeFromPosition(pos, -2, 0),
+		})
 
-	item.AdditionalTextEdits = addTextEdits
+		item.AdditionalTextEdits = addTextEdits
+	}
 
 	return item, nil
 }
@@ -822,6 +835,12 @@ func (s *Server) newTextEditForLink(notebook *core.Notebook, note core.MinimalNo
 		return nil, err
 	}
 
+	// Overwrite [[ trigger directly if the additional text edits are disabled.
+	startOffset := 0
+	if !s.useAdditionalTextEditsWithNotebook(notebook) {
+		startOffset = -2
+	}
+
 	// Some LSP clients (e.g. VSCode) auto-pair brackets, so we need to
 	// remove the closing ]] or )) after the completion.
 	endOffset := 0
@@ -832,10 +851,17 @@ func (s *Server) newTextEditForLink(notebook *core.Notebook, note core.MinimalNo
 
 	return protocol.TextEdit{
 		NewText: link,
-		Range:   rangeFromPosition(pos, 0, endOffset),
+		Range:   rangeFromPosition(pos, startOffset, endOffset),
 	}, nil
 }
 
+func (s *Server) useAdditionalTextEditsWithNotebook(nb *core.Notebook) bool {
+	return nb.Config.LSP.Completion.UseAdditionalTextEdits.
+		Or(s.useAdditionalTextEdits).
+		OrBool(false).
+		Unwrap()
+}
+
 func positionInRange(content string, rng protocol.Range, pos protocol.Position) bool {
 	start, end := rng.IndexesIn(content)
 	i := pos.IndexIn(content)

internal/core/config.go

@@ -161,7 +161,8 @@ type LSPConfig struct {
 
 // LSPCompletionConfig holds the LSP auto-completion configuration.
 type LSPCompletionConfig struct {
-	Note LSPCompletionTemplates
+	Note                   LSPCompletionTemplates
+	UseAdditionalTextEdits opt.Bool
 }
 
 // LSPCompletionConfig holds the LSP completion templates for a particular
@@ -373,6 +374,7 @@ func ParseConfig(content []byte, path string, parentConfig Config) (Config, erro
 	if lspCompl.NoteDetail != nil {
 		config.LSP.Completion.Note.Detail = opt.NewNotEmptyString(*lspCompl.NoteDetail)
 	}
+	config.LSP.Completion.UseAdditionalTextEdits = opt.NewBoolWithPtr(lspCompl.UseAdditionalTextEdits)
 
 	// LSP diagnostics
 	lspDiags := tomlConf.LSP.Diagnostics
@@ -508,9 +510,10 @@ type tomlToolConfig struct {
 
 type tomlLSPConfig struct {
 	Completion struct {
-		NoteLabel      *string `toml:"note-label"`
-		NoteFilterText *string `toml:"note-filter-text"`
-		NoteDetail     *string `toml:"note-detail"`
+		NoteLabel              *string `toml:"note-label"`
+		NoteFilterText         *string `toml:"note-filter-text"`
+		NoteDetail             *string `toml:"note-detail"`
+		UseAdditionalTextEdits *bool   `toml:"use-additional-text-edits"`
 	}
 	Diagnostics struct {
 		WikiTitle *string `toml:"wiki-title"`

internal/core/config_test.go

@@ -126,6 +126,7 @@ func TestParseComplete(t *testing.T) {
 		paths = []
 
 		[lsp.completion]
+		use-additional-text-edits = true
 		note-label = "notelabel"
 		note-filter-text = "notefiltertext"
 		note-detail = "notedetail"
@@ -236,6 +237,7 @@ func TestParseComplete(t *testing.T) {
 					FilterText: opt.NewString("notefiltertext"),
 					Detail:     opt.NewString("notedetail"),
 				},
+				UseAdditionalTextEdits: opt.True,
 			},
 			Diagnostics: LSPDiagnosticConfig{
 				WikiTitle: LSPDiagnosticHint,

internal/util/opt/opt.go

@@ -91,3 +91,76 @@ func (s String) String() string {
 func (s String) MarshalJSON() ([]byte, error) {
 	return []byte(fmt.Sprintf(`"%v"`, s)), nil
 }
+
+// Bool holds an optional boolean value.
+type Bool struct {
+	Value *bool
+}
+
+// NullBool represents an empty optional Bool.
+var NullBool = Bool{nil}
+
+// True represents a true optional Bool.
+var True = NewBool(true)
+
+// False represents a false optional Bool.
+var False = NewBool(false)
+
+// NewBool creates a new optional Bool with the given value.
+func NewBool(value bool) Bool {
+	return Bool{&value}
+}
+
+// NewBool creates a new optional Bool with the given pointer.
+// When nil, the Bool is considered null.
+func NewBoolWithPtr(value *bool) Bool {
+	return Bool{value}
+}
+
+// IsNull returns whether the optional Bool has no value.
+func (s Bool) IsNull() bool {
+	return s.Value == nil
+}
+
+// Or returns the receiver if it is not null, otherwise the given optional
+// Bool.
+func (s Bool) Or(other Bool) Bool {
+	if s.IsNull() {
+		return other
+	} else {
+		return s
+	}
+}
+
+// OrBool returns the optional Bool value or the given default boolean if
+// it is null.
+func (s Bool) OrBool(alt bool) Bool {
+	if s.IsNull() {
+		return NewBool(alt)
+	} else {
+		return s
+	}
+}
+
+// Unwrap returns the optional Bool value or false if none is set.
+func (s Bool) Unwrap() bool {
+	if s.IsNull() {
+		return false
+	} else {
+		return *s.Value
+	}
+}
+
+func (s Bool) Equal(other Bool) bool {
+	return s.Value == other.Value ||
+		(s.Value != nil && other.Value != nil && *s.Value == *other.Value)
+}
+
+func (s Bool) MarshalJSON() ([]byte, error) {
+	value := s.Unwrap()
+	if value {
+		return []byte("true"), nil
+	} else {
+		return []byte("false"), nil
+	}
+}