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client/components/main/helpers.js

@@ -0,0 +1,63 @@
+var Helpers = {
+  error: function() {
+    return Session.get('error');
+  },
+
+  toLowerCase: function(text) {
+    return text && text.toLowerCase();
+  },
+
+  toUpperCase: function(text) {
+    return text && text.toUpperCase();
+  },
+
+  firstChar: function(text) {
+    return text && text[0].toUpperCase();
+  },
+
+  session: function(prop) {
+    return Session.get(prop);
+  },
+
+  getUser: function(userId) {
+    return Users.findOne(userId);
+  }
+};
+
+// Register all Helpers
+_.each(Helpers, function(fn, name) { Blaze.registerHelper(name, fn); });
+
+// XXX I believe we should compute a HTML rendered field on the server that
+// would handle markdown, emojies and user mentions. We can simply have two
+// fields, one source, and one compiled version (in HTML) and send only the
+// compiled version to most users -- who don't need to edit.
+// In the meantime, all the transformation are done on the client using the
+// Blaze API.
+var at = HTML.CharRef({html: '@', str: '@'});
+Blaze.Template.registerHelper('mentions', new Template('mentions', function() {
+  var view = this;
+  var content = Blaze.toHTML(view.templateContentBlock);
+  var currentBoard = Session.get('currentBoard');
+  var knowedUsers = _.map(currentBoard.members, function(member) {
+    member.username = Users.findOne(member.userId).username;
+    return member;
+  });
+
+  var mentionRegex = /\B@(\w*)/gi;
+  var currentMention, knowedUser, href, linkClass, linkValue, link;
+  while (currentMention = mentionRegex.exec(content)) {
+
+    knowedUser = _.findWhere(knowedUsers, { username: currentMention[1] });
+    if (! knowedUser)
+      continue;
+
+    linkValue = [' ', at, knowedUser.username];
+    href = Router.url('Profile', { username: knowedUser.username });
+    linkClass = 'atMention' + (knowedUser.userId === Meteor.userId() ? ' me' : '');
+    link = HTML.A({ href: href, 'class': linkClass }, linkValue);
+
+    content = content.replace(currentMention[0], Blaze.toHTML(link));
+  }
+
+  return HTML.Raw(content);
+}));