From c2b097b8252e7649f50017f3bcc12e72d4730ac0 Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Thu, 5 Dec 2013 23:44:44 +0400
Subject: [PATCH] add includeScopes for velocity mode

---
 lib/ace/ext/language_tools.js | 50 +++++++++++++++++++++++------------
 lib/ace/snippets.js           | 17 +++++++++---
 lib/ace/snippets/velocity.js  |  1 +
 3 files changed, 47 insertions(+), 21 deletions(-)

diff --git a/lib/ace/ext/language_tools.js b/lib/ace/ext/language_tools.js
index e5cd8bb4..e0ed0ec7 100644
--- a/lib/ace/ext/language_tools.js
+++ b/lib/ace/ext/language_tools.js
@@ -46,10 +46,9 @@ var keyWordCompleter = {
 
 var snippetCompleter = {
     getCompletions: function(editor, session, pos, prefix, callback) {
-        var scope = snippetManager.$getScope(editor);
         var snippetMap = snippetManager.snippetMap;
         var completions = [];
-        [scope, "_"].forEach(function(scope) {
+        snippetManager.getActiveScopes(editor).forEach(function(scope) {
             var snippets = snippetMap[scope] || [];
             for (var i = snippets.length; i--;) {
                 var s = snippets[i];
@@ -80,22 +79,39 @@ var expandSnippet = {
             editor.execCommand("indent");
     },
     bindKey: "tab"
-}
+};
 
 var onChangeMode = function(e, editor) {
-    var mode = editor.session.$mode;
-    var id = mode.$id
-    if (!snippetManager.files) snippetManager.files = {};
-    if (id && !snippetManager.files[id]) {
-        var snippetFilePath = id.replace("mode", "snippets");
-        config.loadModule(snippetFilePath, function(m) {
-            if (m) {
-                snippetManager.files[id] = m;
-                m.snippets = snippetManager.parseSnippetFile(m.snippetText);
-                snippetManager.register(m.snippets, m.scope);
+    loadSnippetsForMode(editor.session.$mode);
+};
+
+var loadSnippetsForMode = function(mode) {
+    var id = mode.$id;
+    if (!snippetManager.files)
+        snippetManager.files = {};
+    loadSnippetFile(id);
+    if (mode.modes)
+        mode.modes.forEach(loadSnippetsForMode);
+};
+
+var loadSnippetFile = function(id) {
+    if (!id || snippetManager.files[id])
+        return;
+    var snippetFilePath = id.replace("mode", "snippets");
+    snippetManager.files[id] = {};
+    config.loadModule(snippetFilePath, function(m) {
+        if (m) {
+            snippetManager.files[id] = m;
+            m.snippets = snippetManager.parseSnippetFile(m.snippetText);
+            snippetManager.register(m.snippets, m.scope);
+            if (m.includeScopes) {
+                snippetManager.snippetMap[m.scope].includeScopes = m.includeScopes;
+                m.includeScopes.forEach(function(x) {
+                    loadSnippetFile("ace/mode/" + x);
+                });
             }
-        });
-    }
+        }
+    });
 };
 
 var Editor = require("../editor").Editor;
@@ -103,7 +119,7 @@ require("../config").defineOptions(Editor.prototype, "editor", {
     enableBasicAutocompletion: {
         set: function(val) {
             if (val) {
-                this.completers = completers
+                this.completers = completers;
                 this.commands.addCommand(Autocomplete.startCommand);
             } else {
                 this.commands.removeCommand(Autocomplete.startCommand);
@@ -116,7 +132,7 @@ require("../config").defineOptions(Editor.prototype, "editor", {
             if (val) {
                 this.commands.addCommand(expandSnippet);
                 this.on("changeMode", onChangeMode);
-                onChangeMode(null, this)
+                onChangeMode(null, this);
             } else {
                 this.commands.removeCommand(expandSnippet);
                 this.off("changeMode", onChangeMode);
diff --git a/lib/ace/snippets.js b/lib/ace/snippets.js
index 50c32383..d061dbba 100644
--- a/lib/ace/snippets.js
+++ b/lib/ace/snippets.js
@@ -396,16 +396,26 @@ var SnippetManager = function() {
         return scope;
     };
 
+    this.getActiveScopes = function(editor) {
+        var scope = this.$getScope(editor);
+        var scopes = [scope];
+        var snippetMap = this.snippetMap;
+        if (snippetMap[scope] && snippetMap[scope].includeScopes) {
+            scopes.push.apply(scopes, snippetMap[scope].includeScopes);
+        }
+        scopes.push("_");
+        return scopes;
+    };
+
     this.expandWithTab = function(editor) {
         var cursor = editor.getCursorPosition();
         var line = editor.session.getLine(cursor.row);
         var before = line.substring(0, cursor.column);
         var after = line.substr(cursor.column);
 
-        var scope = this.$getScope(editor);
         var snippetMap = this.snippetMap;
         var snippet;
-        [scope, "_"].some(function(scope) {
+        this.getActiveScopes(editor).some(function(scope) {
             var snippets = snippetMap[scope];
             if (snippets)
                 snippet = this.findMatchingSnippet(snippets, before, after);
@@ -562,10 +572,9 @@ var SnippetManager = function() {
         return list;
     };
     this.getSnippetByName = function(name, editor) {
-        var scope = editor && this.$getScope(editor);
         var snippetMap = this.snippetNameMap;
         var snippet;
-        [scope, "_"].some(function(scope) {
+        this.getActiveScopes(editor).some(function(scope) {
             var snippets = snippetMap[scope];
             if (snippets)
                 snippet = snippets[name];
diff --git a/lib/ace/snippets/velocity.js b/lib/ace/snippets/velocity.js
index ef59f621..ba522dd2 100644
--- a/lib/ace/snippets/velocity.js
+++ b/lib/ace/snippets/velocity.js
@@ -3,5 +3,6 @@ define(function(require, exports, module) {
 
 exports.snippetText = require("../requirejs/text!./velocity.snippets");
 exports.scope = "velocity";
+exports.includeScopes = ["html", "javascript", "css"];
 
 });