From d276f10bcdc01b1928d4331523a0935c8fe0d8e8 Mon Sep 17 00:00:00 2001
From: DanyaPostfactum <danya.postfactum@gmail.com>
Date: Sun, 30 Jun 2013 04:07:24 +1000
Subject: [PATCH] add snippet completer

---
 lib/ace/autocomplete.js                |  5 +++--
 lib/ace/autocomplete/popup.js          |  6 ++++--
 lib/ace/autocomplete/text_completer.js |  2 +-
 lib/ace/ext/language_tools.js          | 25 +++++++++++++++++++++++--
 4 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/lib/ace/autocomplete.js b/lib/ace/autocomplete.js
index 5b6d4c30..4638d959 100644
--- a/lib/ace/autocomplete.js
+++ b/lib/ace/autocomplete.js
@@ -36,6 +36,7 @@ var AcePopup = require("./autocomplete/popup").AcePopup;
 var util = require("./autocomplete/util");
 var event = require("./lib/event");
 var lang = require("./lib/lang");
+var snippetManager = require("./snippets").snippetManager;
 
 var Autocomplete = function() {
     this.keyboardHandler = new HashHandler();
@@ -143,7 +144,7 @@ var Autocomplete = function() {
                 range.start.column -= this.completions.filterText.length;
                 this.editor.session.remove(range);
             }
-            this.editor.insert(data);
+            snippetManager.insertSnippet(this.editor, data);
         }
     };
 
@@ -172,7 +173,7 @@ var Autocomplete = function() {
 
         var matches = [];
         util.parForEach(editor.completers, function(completer, next) {
-            completer.getCompletions(session, pos, prefix, function(err, results) {
+            completer.getCompletions(editor, session, pos, prefix, function(err, results) {
                 if (!err)
                     matches = matches.concat(results);
                 next();
diff --git a/lib/ace/autocomplete/popup.js b/lib/ace/autocomplete/popup.js
index 5b7ce0b3..ece43d6a 100644
--- a/lib/ace/autocomplete/popup.js
+++ b/lib/ace/autocomplete/popup.js
@@ -128,11 +128,13 @@ var AcePopup = function(parentNode) {
             return tokens;
         if (typeof data == "string")
             data = {value: data};
+        if (!data.caption)
+            data.caption = data.value;
 
-        tokens.push({type: data.className || "", value: data.value});
+        tokens.push({type: data.className || "", value: data.caption});
         if (data.meta) {
             var maxW = popup.renderer.$size.scrollerWidth / popup.renderer.layerConfig.characterWidth;
-            if (data.meta.length + data.value.length < maxW - 2)
+            if (data.meta.length + data.caption.length < maxW - 2)
                 tokens.push({type: "rightAlignedText", value: data.meta});
         }
         return tokens;
diff --git a/lib/ace/autocomplete/text_completer.js b/lib/ace/autocomplete/text_completer.js
index 2808ff6f..8e4bc019 100644
--- a/lib/ace/autocomplete/text_completer.js
+++ b/lib/ace/autocomplete/text_completer.js
@@ -74,7 +74,7 @@ define(function(require, exports, module) {
         return wordScores;
     }
 
-    exports.getCompletions = function(session, pos, prefix, callback) {
+    exports.getCompletions = function(editor, session, pos, prefix, callback) {
         var wordScore = wordDistance(session, pos, prefix);
         var wordList = filterPrefix(prefix, Object.keys(wordScore));
         callback(null, wordList.map(function(word) {
diff --git a/lib/ace/ext/language_tools.js b/lib/ace/ext/language_tools.js
index 7133d740..4c6cbe08 100644
--- a/lib/ace/ext/language_tools.js
+++ b/lib/ace/ext/language_tools.js
@@ -37,7 +37,7 @@ var config = require("../config");
 
 var textCompleter = require("../autocomplete/text_completer");
 var keyWordCompleter = {
-    getCompletions: function(session, pos, prefix, callback) {
+    getCompletions: function(editor, session, pos, prefix, callback) {
         var keywords = session.$mode.$keywordList || [];
         keywords = keywords.filter(function(w) {
             return w.lastIndexOf(prefix, 0) == 0;
@@ -53,7 +53,28 @@ var keyWordCompleter = {
     }
 };
 
-var completers = [textCompleter, keyWordCompleter]; // todo add snippets completer
+var snippetCompleter = {
+    getCompletions: function(editor, session, pos, prefix, callback) {
+        var scope = snippetManager.$getScope(editor);
+        var snippetMap = snippetManager.snippetMap;
+        var completions = [];
+        [scope, "_"].forEach(function(scope) {
+            var snippets = snippetMap[scope] || [];
+            for (var i = snippets.length; i--;) {
+                var s = snippets[i];
+                if (s.tabTrigger && s.tabTrigger.indexOf(prefix) === 0)
+                    completions.push({
+                        caption: s.tabTrigger,
+                        value: s.content,
+                        meta: 'snippet'
+                    });
+            }
+        }, this);
+        callback(null, completions);
+    }
+};
+
+var completers = [snippetCompleter, textCompleter, keyWordCompleter];
 exports.addCompleter = function(completer) {
     completers.push(completer);
 };