allow width/height in percent

ui.js

@@ -16,6 +16,7 @@
             onscroll : 'scroll',
             overlay : true,
             title : '',
+            body : null,
             width : 300,
             height : 300
         }
@@ -23,6 +24,7 @@
 
         if (this.options.onscroll == 'scroll') {
             Yeti.Evt.bind(window, 'scroll', function() {
+                _self.set_sizes();
                 _self.set_position();
             });
         }
@@ -31,7 +33,12 @@
         this.frame = document.createElement('div');
         this.header = document.createElement('div');
         this.title = document.createElement('span');
+
+        if (this.options.body === null) {
             this.body = document.createElement('div');
+        } else {
+            this.body = Yeti.Element(this.options.body);
+        }
 
         this.frame.style.zIndex = this.options.zindex;
         this.frame.style.position = 'absolute';
@@ -68,11 +75,9 @@
         this.frame.appendChild(this.header);
         this.frame.appendChild(this.body);
 
-        this.frame.style.width = this.options.width + 'px';
-        this.frame.style.height = this.options.height + 'px';
-
         this.set_title(this.options.title);
-        this.set_body(this.options.body);
+
+        this.set_sizes();
         this.set_position();
     }
 
@@ -82,6 +87,43 @@
         }
     }
 
+    UI.Frame.prototype.get_frame_size = function() {
+        var size = new Object(),
+            props = ['width', 'height']
+        ;
+
+        for (var i=0, _len = props.length; i<_len; i++) {
+            var key = props[i],
+                value = this.options[key]
+            ;
+
+            switch(typeof(value)) {
+                case 'number':
+                    size[key] = value;
+                    break;
+                case 'string':
+                    var idx_percent = value.lastIndexOf('%');
+                    if (idx_percent == -1) {
+                        size[key] = parseInt(value);
+                    } else {
+                        var window_size = Yeti.DOM.getWindowSize();
+                        size[key] = window_size[key] * (parseInt(value.substring(0, idx_percent)) / 100);
+                    }
+                    break;
+            }
+        }
+
+        return size;
+    }
+
+    UI.Frame.prototype.set_sizes = function() {
+        var size = this.get_frame_size();
+
+        this.frame.style.width = size.width + 'px';
+        this.frame.style.height = size.height + 'px';
+        this.body.style.height = (size.height - this.header.offsetHeight) -20 + 'px';
+    }
+
     UI.Frame.prototype.get_position = function() {
         var window_size = Yeti.DOM.getWindowSize(),
             scroll_offset = Yeti.DOM.getScrollXY()
@@ -89,7 +131,8 @@
 
         if (this.options.position == 'center') {
             var left = window_size.width / 2 + scroll_offset.X,
-                top = window_size.height / 2 + scroll_offset.Y
+                top = window_size.height / 2 + scroll_offset.Y,
+                frame_size = this.get_frame_size()
             ;
 
             /* Additional border/padding/... ? */
@@ -99,14 +142,14 @@
             }
 
             return {
-                left : left - this.options.width / 2,
-                top : top - this.options.height / 2
+                left : left - frame_size.width / 2,
+                top : top - frame_size.height / 2
             }
         }
     }
 
-    UI.Frame.prototype.set_position = function(position) {
-        var position = position || this.get_position();
+    UI.Frame.prototype.set_position = function() {
+        var position = this.get_position();
 
         this.frame.style.left = position.left + 'px';
         this.frame.style.top = position.top + 'px';
@@ -117,22 +160,12 @@
         this.title.appendChild(document.createTextNode(value));
     }
 
-    UI.Frame.prototype.set_body = function(value) {
-        var content = Yeti.Element(value);
-        if (content) {
-            Yeti.DOM.removeNodes(this.body);
-            if (content.style.display == 'none') {
-                content.style.display = 'block';
-            }
-            this.body.appendChild(content);
-        }
-    }
-
     UI.Frame.prototype.attach = function() {
         if (this.overlay) {
             this.container.appendChild(this.overlay);
         }
         this.container.appendChild(this.frame);
+        this.body.style.display = 'block';
         this.attached = true;
     }