#6 Add CompletionContext class.

Author: CXuesong

LanguageServer.VsCode/Contracts/CompletionContext.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Newtonsoft.Json;
+
+namespace LanguageServer.VsCode.Contracts
+{
+
+    /// <summary>
+    /// Contains additional information about the context in which a completion request is triggered.
+    /// </summary>
+    /// <remarks>
+    /// When used to implement <c>textDocument/completion</c>, this instance
+    /// is only available if the client specifies to send this using
+    /// <c>ClientCapabilities.TextDocument.Completion.ContextSupport == true</c>.
+    /// </remarks>
+    [JsonObject(MemberSerialization.OptIn)]
+    public class CompletionContext
+    {
+
+        /// <summary>
+        /// Initializes a new <see cref="CompletionContext"/>
+        /// with <see cref="TriggerKind"/> set to <see cref="CompletionTriggerKind.Invoked"/>.
+        /// </summary>
+        [JsonConstructor]
+        public CompletionContext()
+        {
+            TriggerKind = CompletionTriggerKind.Invoked;
+        }
+
+        /// <summary>
+        /// Initializes a new <see cref="CompletionContext"/>
+        /// with <see cref="TriggerKind"/> set to <see cref="CompletionTriggerKind.TriggerCharacter"/>.
+        /// </summary>
+        /// <param name="triggerCharacter">The character that triggers the completion.</param>
+        public CompletionContext(char triggerCharacter)
+        {
+            TriggerKind = CompletionTriggerKind.TriggerCharacter;
+            TriggerCharacter = triggerCharacter;
+        }
+
+        /// <summary>How the completion was triggered.</summary>
+        [JsonProperty]
+        public CompletionTriggerKind TriggerKind { get; set; }
+
+        /// <summary>
+        /// The trigger character (a single character) that has trigger code complete.
+        /// Is undefined if <see cref="TriggerKind"/> is not <see cref="CompletionTriggerKind.TriggerCharacter"/>.
+        /// </summary>
+        [JsonProperty]
+        public char TriggerCharacter { get; set; }
+
+    }
+
+    /// <summary>How a completion was triggered.</summary>
+    public enum CompletionTriggerKind
+    {
+        /// <summary>
+        /// Completion was triggered by typing an identifier (24x7 code complete),
+        /// manual invocation (e.g Ctrl+Space) or via API.
+        /// </summary>
+        Invoked = 1,
+        /// <summary>
+        /// Completion was triggered by a trigger character specified by
+        /// the <see cref="CompletionRegistrationOptions.TriggerCharacters"/> property
+        /// of the <see cref="CompletionRegistrationOptions"/>.
+        /// </summary>
+        TriggerCharacter = 2,
+    }
+}