DG IZ; cool labels fade in

app/views/comments/_new_comment.html.haml

@@ -1,4 +1,7 @@
-= form_tag("/comments", :remote => true, :class =>"new_comment", :id => "new_comment-#{post.id}") do
-  = text_area_tag "comment_text", 'leave a comment',  :size => 30, :name => 'comment[text]'
-  = hidden_field_tag  "comment_post_id", "#{post.id}", :name => "comment[post_id]"
-  = submit_tag 'comment', :id => "comment_submit_#{post.id}", :name => "commit"
+= form_for Comment.new, :remote => true do |f|
+  %p
+    %label{:for => "comment_text"} Comment
+    = f.text_area :text
+  = f.hidden_field :post_id, :value => post.id
+  %p
+    = f.submit "Comment"

app/views/layouts/application.html.haml

@@ -10,7 +10,7 @@
     = stylesheet_link_tag "application"
     /= javascript_include_tag"http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"
     = javascript_include_tag 'jquery142', 'rails', 'view'
-    = javascript_include_tag 'tiny_mce/tiny_mce.js'
+    = javascript_include_tag 'tiny_mce/tiny_mce.js','jquery.infieldlabel'
     :javascript
       var _gaq = _gaq || [];
       _gaq.push(['_setAccount', 'UA-17207587-1']);
@@ -57,6 +57,10 @@
           }, function() {
             $(this).children(".destroy_link").fadeOut(0);
           });
+
+
+
+          $("label").inFieldLabels();
         });
   /= javascript_include_tag 'satisfaction' , 'satisfaction-display'
   :javascript

app/views/shared/_publisher.haml

@@ -66,17 +66,30 @@
   #publisher_form
     = form_for StatusMessage.new, :remote => true do |f|
       = f.error_messages
-      = f.text_area :message, :value => "Message"
-      = f.submit "Post"
+      %p
+        %label{:for => "status_message_message"} Message
+        = f.text_area :message
+      %p
+        = f.submit "Post"
 
     = form_for Bookmark.new, :remote => true do |f|
       = f.error_messages
-      = f.text_area :title, :value => "Title"
-      = f.text_area :link, :value => "URL"
-      = f.submit "Post"
+      %p
+        %label{:for => "bookmark_title"} Title
+        = f.text_area :title
+      %p
+        %label{:for => "bookmark_link"} Link
+        = f.text_area :link
+      %p
+        = f.submit "Post"
 
     = form_for Blog.new, :remote => true do |f|
       = f.error_messages
-      = f.text_field :title, :value => "Title"
-      = f.text_area :body, :id => "blog_editor"
-      = f.submit "Post"
+      %p
+        %label{:for => "blog_title"} Title
+        = f.text_area :title
+      %p
+        %label{:for => "blog_body"} Body
+        = f.text_area :body
+      %p
+        = f.submit "Post"

public/javascripts/jquery.infieldlabel.js

@@ -0,0 +1,140 @@
+/*
+ * In-Field Label jQuery Plugin
+ * http://fuelyourcoding.com/scripts/infield.html
+ *
+ * Copyright (c) 2009 Doug Neiner
+ * Dual licensed under the MIT and GPL licenses.
+ * Uses the same license as jQuery, see:
+ * http://docs.jquery.com/License
+ *
+ * @version 0.1
+ */
+(function($){
+	
+    $.InFieldLabels = function(label,field, options){
+        // To avoid scope issues, use 'base' instead of 'this'
+        // to reference this class from internal events and functions.
+        var base = this;
+        
+        // Access to jQuery and DOM versions of each element
+        base.$label = $(label);
+        base.label = label;
+
+ 		base.$field = $(field);
+		base.field = field;
+        
+		base.$label.data("InFieldLabels", base);
+		base.showing = true;
+        
+        base.init = function(){
+			// Merge supplied options with default options
+            base.options = $.extend({},$.InFieldLabels.defaultOptions, options);
+
+			// Check if the field is already filled in
+			if(base.$field.val() != ""){
+				base.$label.hide();
+				base.showing = false;
+			};
+			
+			base.$field.focus(function(){
+				base.fadeOnFocus();
+			}).blur(function(){
+				base.checkForEmpty(true);
+			}).bind('keydown.infieldlabel',function(e){
+				// Use of a namespace (.infieldlabel) allows us to
+				// unbind just this method later
+				base.hideOnChange(e);
+			}).change(function(e){
+				base.checkForEmpty();
+			}).bind('onPropertyChange', function(){
+				base.checkForEmpty();
+			});
+        };
+
+		// If the label is currently showing
+		// then fade it down to the amount
+		// specified in the settings
+		base.fadeOnFocus = function(){
+			if(base.showing){
+				base.setOpacity(base.options.fadeOpacity);
+			};
+		};
+		
+		base.setOpacity = function(opacity){
+			base.$label.stop().animate({ opacity: opacity }, base.options.fadeDuration);
+			base.showing = (opacity > 0.0);
+		};
+		
+		// Checks for empty as a fail safe
+		// set blur to true when passing from
+		// the blur event
+		base.checkForEmpty = function(blur){
+			if(base.$field.val() == ""){
+				base.prepForShow();
+				base.setOpacity( blur ? 1.0 : base.options.fadeOpacity );
+			} else {
+				base.setOpacity(0.0);
+			};
+		};
+		
+		base.prepForShow = function(e){
+			if(!base.showing) {
+				// Prepare for a animate in...
+				base.$label.css({opacity: 0.0}).show();
+				
+				// Reattach the keydown event
+				base.$field.bind('keydown.infieldlabel',function(e){
+					base.hideOnChange(e);
+				});
+			};
+		};
+
+		base.hideOnChange = function(e){
+			if(
+				(e.keyCode == 16) || // Skip Shift
+				(e.keyCode == 9) // Skip Tab
+			  ) return; 
+			
+			if(base.showing){
+				base.$label.hide();
+				base.showing = false;
+			};
+			
+			// Remove keydown event to save on CPU processing
+			base.$field.unbind('keydown.infieldlabel');
+		};
+      
+		// Run the initialization method
+        base.init();
+    };
+	
+    $.InFieldLabels.defaultOptions = {
+        fadeOpacity: 0.5, // Once a field has focus, how transparent should the label be
+		fadeDuration: 300 // How long should it take to animate from 1.0 opacity to the fadeOpacity
+    };
+	
+
+    $.fn.inFieldLabels = function(options){
+        return this.each(function(){
+			// Find input or textarea based on for= attribute
+			// The for attribute on the label must contain the ID
+			// of the input or textarea element
+			var for_attr = $(this).attr('for');
+			if( !for_attr ) return; // Nothing to attach, since the for field wasn't used
+			
+			
+			// Find the referenced input or textarea element
+			var $field = $(
+				"input#" + for_attr + "[type='text']," + 
+				"input#" + for_attr + "[type='password']," + 
+				"textarea#" + for_attr
+				);
+				
+			if( $field.length == 0) return; // Again, nothing to attach
+			
+			// Only create object for input[text], input[password], or textarea
+            (new $.InFieldLabels(this, $field[0], options));
+        });
+    };
+	
+})(jQuery);

public/stylesheets/application.css

@@ -183,9 +183,6 @@ form {
     #user_name a:hover {
       color: #cc1e14; }
 
-#comment_text {
-  padding: 3px; }
-
 ul.comment_set {
   margin: 0;
     margin-top: 1em;
@@ -234,3 +231,18 @@ textarea {
   width: 100%;
   -moz-box-shadow: 0 2px 0px white;
   border-top: 1px solid #999999; }
+
+input[type='submit'] {
+  position: absolute;
+  right: 0; }
+
+form p {
+  position: relative;
+  padding: 0;
+  margin: 0; }
+
+label {
+  color: #999999;
+  position: absolute;
+  top: 3px;
+  left: 0.48em; }

public/stylesheets/sass/application.sass

@@ -215,8 +215,6 @@ form
     &:hover
       :color #CC1E14
 
-#comment_text
-  :padding 3px
 
 ul.comment_set
   :margin 0
@@ -280,3 +278,18 @@ textarea
   :-moz-box-shadow 0 2px 0px #fff
 
   :border-top 1px solid #999
+
+input[type='submit']
+  :position absolute
+  :right 0
+
+form p
+  :position relative
+  :padding 0
+  :margin 0
+
+label
+  :color #999
+  :position absolute
+  :top 3px
+  :left 0.48em