[Archive-access-cvs] SF.net SVN: archive-access:[2898] trunk/archive-access/projects/wayback/ wayback-webapp/src/main/webapp/js/disclaim-element.js

[<bra...@us...>]

Revision: 2898
          http://archive-access.svn.sourceforge.net/archive-access/?rev=2898&view=rev
Author:   bradtofel
Date:     2009-11-06 02:50:51 +0000 (Fri, 06 Nov 2009)

Log Message:
-----------
REFACTOR: extracted logic to determine if the "current" frame is the largest within a set of frames, and added a method to enable toggling the display of 2 elements depending if the "current" frame is the largest. This new method would enable a smaller "disclaimer" to be used in all other frames besides the largest, as a hint to users that the other frames are still loaded from Wayback.

Modified Paths:
--------------
    trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/js/disclaim-element.js

Modified: trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/js/disclaim-element.js
===================================================================
--- trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/js/disclaim-element.js	2009-11-06 02:38:40 UTC (rev 2897)
+++ trunk/archive-access/projects/wayback/wayback-webapp/src/main/webapp/js/disclaim-element.js	2009-11-06 02:50:51 UTC (rev 2898)
@@ -5,25 +5,40 @@
   return 0;
 }
 
+function isLargestFrame() {
+	if(top == self) {
+		return true;
+	}
+	if(top.document.body.tagName == "BODY") {
+		return false;
+	}
+	largestArea = 0;
+	largestFrame = null;
+	for(i=0;i<top.frames.length;i++) {
+		frame = top.frames[i];
+		area = getFrameArea(frame);
+		if(area > largestArea) {
+			largestFrame = frame;
+			largestArea = area;
+		}
+	}
+	return (self == largestFrame);
+}
+
 function disclaimElement(element) {
-  if(top!=self) {
-    if(top.document.body.tagName == "BODY") {
-      return;
-    }
-    largestArea = 0;
-    largestFrame = null;
-    for(i=0;i<top.frames.length;i++) {
-      frame = top.frames[i];
-      area = getFrameArea(frame);
-      if(area > largestArea) {
-        largestFrame = frame;
-        largestArea = area;
-      }
-    }
-    if(self!=largestFrame) {
-      return;
-    }
-  }
-  element.style.display="block";
-  document.body.insertBefore(element,document.body.firstChild);
+	if(isLargestFrame()) {
+		element.style.display="block";
+		document.body.insertBefore(element,document.body.firstChild);
+	}
 }
+
+function disclaimToggle(largest, nonLargest) {
+	if(isLargestFrame()) {
+		largest.style.display="block";
+		nonLargest.style.display="none";
+	} else {
+		largest.style.display="none";
+		nonLargest.style.display="block";
+	}
+}
+


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