Fixed word count grammar

Closes #349
- Added utility function to pluralize when appropriate.

core/client/assets/lib/jquery-utils.js

@@ -82,4 +82,17 @@
 
     $('.overlay').hideAway(); // TODO: Move to a more sensible global file.
 
+    /**
+     * Adds appropriate inflection for pluralizing the singular form of a word when appropriate.
+     * This is an overly simplistic implementation that does not handle irregular plurals.
+     * @param {Number} count 
+     * @param {String} singularWord
+     * @returns {String}
+     */
+    $.pluralize = function inflect(count, singularWord) {
+    	var base = [count, ' ', singularWord];
+
+        return (count === 1) ? base.join('') : base.concat('s').join('');
+    };
+
 }());

core/client/views/editor.js

@@ -305,9 +305,9 @@
             preview.innerHTML = this.converter.makeHtml(this.editor.getValue());
             view.$('.js-drop-zone').upload({editor: true});
             Countable.once(preview, function (counter) {
-                view.$('.entry-word-count').text(counter.words + ' words');
-                view.$('.entry-character-count').text(counter.characters + ' characters');
-                view.$('.entry-paragraph-count').text(counter.paragraphs + ' paragraphs');
+                view.$('.entry-word-count').text($.pluralize(counter.words, 'word'));
+                view.$('.entry-character-count').text($.pluralize(counter.characters, 'character'));
+                view.$('.entry-paragraph-count').text($.pluralize(counter.paragraphs, 'paragraph'));
             });
         },
 

core/test/functional/admin/03_editor_test.js

@@ -84,3 +84,46 @@ casper.test.begin("Haunted markdown in editor works", 3, function suite(test) {
         test.done();
     });
 });
+
+casper.test.begin("Word count and plurality", 4, function suite(test) {
+
+    casper.test.filename = "editor_plurality_test.png";
+
+    casper.start(url + "ghost/editor", function testTitleAndUrl() {
+        test.assertTitle("", "Ghost admin has no title");
+    }).viewport(1280, 1024);
+
+    casper.then(function checkZeroPlural() {
+        test.assertSelectorHasText('.entry-word-count', '0 words', 'count of 0 produces plural "words".');
+    });
+
+    casper.then(function () {
+        casper.writeContentToCodeMirror('test');
+    });
+
+    // We must wait after sending keys to CodeMirror
+    casper.wait(1000, function doneWait() {
+        this.echo('I\'ve waited for 1 seconds.');
+    });
+
+    casper.then(function checkSinglular() {
+        test.assertSelectorHasText('.entry-word-count', '1 word', 'count of 1 produces singular "word".');
+    });
+
+    casper.then(function () {
+        casper.writeContentToCodeMirror('test'); // append another word, assumes newline
+    });
+
+    // We must wait after sending keys to CodeMirror
+    casper.wait(1000, function doneWait() {
+        this.echo('I\'ve waited for 1 seconds.');
+    });
+
+    casper.then(function checkPlural() {
+        test.assertSelectorHasText('.entry-word-count', '2 words', 'count of 2 produces plural "words".');
+    });
+
+    casper.run(function () {
+        test.done();
+    });
+});