move preview toggle function into composer/preview.js

public/src/modules/composer.js

@@ -382,15 +382,17 @@ define('composer', [
 			});
 
 			bodyEl.val(draft ? draft : postData.body);
+
 			preview.render(postContainer, function() {
 				preview.matchScroll(postContainer);
 			});
+			preview.handleToggler(postContainer);
+
 			drafts.init(postContainer, postData);
 
 			resize.handleResize(postContainer);
 
 			handleHelp(postContainer);
-			handleTogglePreview(postContainer);
 
 			$(window).trigger('action:composer.loaded', {
 				post_uuid: post_uuid
@@ -419,27 +421,6 @@ define('composer', [
 		});
 	}
 
-	function handleTogglePreview(postContainer) {
-		var showBtn = postContainer.find('.write-container .toggle-preview'),
-			hideBtn = postContainer.find('.preview-container .toggle-preview');
-
-		hideBtn.on('click', function() {
-			$('.preview-container').addClass('hide');
-			$('.write-container').addClass('maximized');
-			showBtn.removeClass('hide');
-
-			$('.write').focus();
-		});
-
-		showBtn.on('click', function() {
-			$('.preview-container').removeClass('hide');
-			$('.write-container').removeClass('maximized');
-			showBtn.addClass('hide');
-
-			$('.write').focus();
-		});
-	}
-
 	function updateTitle(postData, postContainer) {
 		var titleEl = postContainer.find('.title');
 

public/src/modules/composer/preview.js

@@ -44,5 +44,26 @@ define('composer/preview', function() {
 		preview.scrollTop(Math.max(preview[0].scrollHeight - preview.height(), 0) * scrollPercent);
 	};
 
+	preview.handleToggler = function(postContainer) {
+		var showBtn = postContainer.find('.write-container .toggle-preview'),
+			hideBtn = postContainer.find('.preview-container .toggle-preview');
+
+		hideBtn.on('click', function() {
+			$('.preview-container').addClass('hide');
+			$('.write-container').addClass('maximized');
+			showBtn.removeClass('hide');
+
+			$('.write').focus();
+		});
+
+		showBtn.on('click', function() {
+			$('.preview-container').removeClass('hide');
+			$('.write-container').removeClass('maximized');
+			showBtn.addClass('hide');
+
+			$('.write').focus();
+		});
+	};
+
 	return preview;
 });