Do a bunch of work on publisher autocompletion JS

app/views/aspects/index.html.haml

@@ -6,6 +6,8 @@
 - content_for :head do
   = include_javascripts :home
 
+= hidden_field_tag :contact_json, @contacts.map{|contact| contact.person}.to_json
+
 .span-15.append-2
   = render 'aspects/no_contacts_message', :aspect => @aspect, :contact_count => @contacts.count
 

app/views/layouts/_header.html.haml

@@ -54,4 +54,3 @@
       .facebox_content
         #add_aspect_pane
           = render "aspects/new_aspect"
-

public/javascripts/jquery.autocomplete-custom.js

@@ -13,6 +13,7 @@
 
 ;(function($) {
 
+  function lastWord(s){return s;} //Fuck you
 $.fn.extend({
 	autocomplete: function(urlOrData, options) {
 		var isUrl = typeof urlOrData == "string";
@@ -233,7 +234,7 @@ $.Autocompleter = function(input, options) {
 
 		previousValue = currentValue;
 
-		currentValue = lastWord(currentValue);
+		currentValue = options.searchTermFromValue(currentValue);
 		if ( currentValue.length >= options.minChars) {
 			$input.addClass(options.loadingClass);
 			if (!options.matchCase)
@@ -258,13 +259,6 @@ $.Autocompleter = function(input, options) {
 		return result;
 	}
 
-	function lastWord(value) {
-		if ( !options.multiple )
-			return value;
-		var words = trimWords(value);
-		return words[words.length - 1];
-	}
-
 	// fills in the input box w/the first match (assumed to be the best match)
 	// q: the term entered
 	// sValue: the first matching result
@@ -386,6 +380,7 @@ $.Autocompleter = function(input, options) {
 };
 
 $.Autocompleter.defaults = {
+  searchTermFromValue: lastWord,
 	inputClass: "ac_input",
 	resultsClass: "ac_results",
 	loadingClass: "ac_loading",

public/javascripts/publisher.js

@@ -13,13 +13,68 @@ var Publisher = {
     Publisher.form().removeClass('closed');
     Publisher.form().find(".options_and_submit").show();
   },
-  form: function(){return $('#publisher');},
+  cachedForm : false,
+  form: function(){
+    if(!Publisher.cachedForm){
+      Publisher.cachedForm = $('#publisher');
+    }
+    return Publisher.cachedForm;
+  },
+  cachedInput : false,
+  input: function(){
+    if(!Publisher.cachedInput){
+      Publisher.cachedInput = Publisher.form().find('#status_message_fake_message');
+    }
+    return Publisher.cachedInput;
+  },
+
   updateHiddenField: function(evt){
    Publisher.form().find('#status_message_message').val(
-        Publisher.form().find('#status_message_fake_message').val());
+    Publisher.input().val());
+  },
+  autocompletion: {
+    options : function(){return {
+      minChars : 1,
+      max : 5,
+      searchTermFromValue: Publisher.autocompletion.searchTermFromValue,
+      scroll : false,
+      formatItem: function(row, i, max) {
+          return row.name;
+      },
+      formatMatch: function(row, i, max) {
+          return row.name;
+      },
+      formatResult: function(row) {
+          return row.name;
+      }
+    };},
+
+    selectItemCallback :  function(event, data, formatted) {
+      var textarea = Publisher.input();
+      textarea.val(formatted);
+    },
+
+    searchTermFromValue: function(value)
+    {
+      matches = value.match(/@(.+)/);
+      if(matches){
+        return matches[1];
+      }else{
+        return '';
+      }
+    },
+    contactsJSON: function(){
+      return $.parseJSON($('#contact_json').val());
     },
     initialize: function(){
-    var $publisher = Publisher.form();
+      Publisher.input().autocomplete(Publisher.autocompletion.contactsJSON(),
+        Publisher.autocompletion.options());
+      Publisher.input().result(Publisher.autocompletion.selectItemCallback);
+    }
+  },
+  initialize: function() {
+    Publisher.cachedForm = false;
+    Publisher.cachedInput = false;
     $("div.public_toggle input").live("click", function(evt) {
       $("#publisher_service_icons").toggleClass("dim");
       if ($(this).attr('checked') == true) {
@@ -31,10 +86,11 @@ var Publisher = {
       Publisher.close();
     };
 
+    Publisher.autocompletion.initialize();
     Publisher.updateHiddenField();
-    $publisher.find('#status_message_fake_message').change(
+    Publisher.form().find('#status_message_fake_message').change(
         Publisher.updateHiddenField);
-    $publisher.find("textarea").bind("focus", function(evt) {
+    Publisher.form().find("textarea").bind("focus", function(evt) {
       Publisher.open();
       $(this).css('min-height', '42px');
     });

spec/javascripts/publisher-spec.js

@@ -78,4 +78,25 @@ describe("Publisher", function() {
           Publisher.form().find('#status_message_fake_message').val());
       });
     });
+    describe("autocompletion", function(){
+      describe("searchTermFromValue", function(){
+        var func;
+        beforeEach(function(){func = Publisher.autocompletion.searchTermFromValue;});
+        it("returns everything after an @", function(){
+          expect(func('not @dan grip')).toBe('dan grip');
+        });
+        it("returns nothing if there is no @", function(){
+          expect(func('dan')).toBe('');
+        });
+        it("returns nothing for just an @", function(){
+          expect(func('@')).toBe('');
+        });
+        it("returns everything after the last @", function(){
+          expect(func('@siojfoi @dan"')).toBe('dan"');
+        });
+        it("returns nothing if there are letters preceding the @", function(){
+          expect(func('ioj@asdo')).toBe('');
+        });
+      });
+    });
 });