1 files changed, 69 insertions, 0 deletions
diff --git a/web-ui/app/js/mixins/with_mail_tagging.js b/web-ui/app/js/mixins/with_mail_tagging.js
new file mode 100644
index 00000000..1fc1c3bd
--- /dev/null
+++ b/web-ui/app/js/mixins/with_mail_tagging.js
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2014 ThoughtWorks, Inc.
+ *
+ * Pixelated is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Pixelated is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+define(
+  ['page/events', 'features'],
+  function (events, features) {
+  'use strict';
+    function withMailTagging () {
+      this.updateTags = function(mail, tags) {
+        this.trigger(document, events.mail.tags.update, {ident: mail.ident, tags: tags});
+      };
+
+      this.attachTagCompletion = function(mail) {
+        this.tagFilter = function (parsedResult) {
+            var filtered = _.filter(parsedResult, function (tag) {return ! _.contains(mail.tags, tag.name); });
+            return _.map(filtered, function(tag) { return {value: Handlebars.Utils.escapeExpression(tag.name)}; });
+        };
+
+        this.tagCompleter = new Bloodhound({
+          datumTokenizer: function(d) { return [d.value]; },
+          queryTokenizer: function(q) { return [q.trim()]; },
+          remote: {
+            url: '/tags?skipDefaultTags=true&q=%QUERY',
+            filter: this.tagFilter
+          }
+        });
+
+        this.tagCompleter.initialize();
+
+        this.select('newTagInput').typeahead({
+          hint: true,
+          highlight: true,
+          minLength: 1
+        }, {
+          source: this.tagCompleter.ttAdapter()
+        });
+      };
+
+      this.createNewTag = function () {
+        var tagsCopy = this.attr.mail.tags.slice();
+        tagsCopy.push(this.select('newTagInput').val());
+        this.tagCompleter.clear();
+        this.tagCompleter.clearPrefetchCache();
+        this.tagCompleter.clearRemoteCache();
+        this.updateTags(this.attr.mail, _.uniq(tagsCopy));
+      };
+
+      this.after('displayMail', function () {
+        this.on(this.select('newTagInput'), 'typeahead:selected typeahead:autocompleted', this.createNewTag);
+      });
+    }
+
+    return withMailTagging;
+  }
+);