1 files changed, 39 insertions, 0 deletions

diff --git a/ui/source/effects.fold.js b/ui/source/effects.fold.js
new file mode 100644
index 000000000..f2738c2aa
--- /dev/null
+++ b/ui/source/effects.fold.js
@@ -0,0 +1,39 @@
+;(function($) {
+  
+  $.effects.fold = function(o) {
+
+    return this.queue(function() {
+
+      // Create element
+      var el = $(this), props = ['position','top','left'];
+      
+      // Set options
+      var mode = $.effects.setMode(el, o.options.mode || 'hide'); // Set Mode
+      var size = o.options.size || 15; // Default fold size
+      
+      // Adjust
+      $.effects.save(el, props); el.show(); // Save & Show
+      var wrapper = $.effects.createWrapper(el).css({overflow:'hidden'}); // Create Wrapper
+      var ref = (mode == 'show') ? ['width', 'height'] : ['height', 'width'];
+      var distance = (mode == 'show') ? [wrapper.width(), wrapper.height()] : [wrapper.height(), wrapper.width()];
+      if(mode == 'show') wrapper.css({height: size, width: 0}); // Shift
+      
+      // Animation
+      var animation1 = {}, animation2 = {};
+      animation1[ref[0]] = mode == 'show' ? distance[0] : size;
+      animation2[ref[1]] = mode == 'show' ? distance[1] : 0;
+      
+      // Animate
+      wrapper.animate(animation1, o.duration / 2, o.options.easing)
+      .animate(animation2, o.duration / 2, o.options.easing, function() {
+        if(mode == 'hide') el.hide(); // Hide
+        $.effects.restore(el, props); $.effects.removeWrapper(el); // Restore
+        if(o.callback) o.callback.apply(this, arguments); // Callback
+        el.dequeue();
+      });
+      
+    });
+    
+  };
+  
+})(jQuery);
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