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page load perfomance improvements...
authorScott Main <smain@google.com>
Thu, 4 Jun 2009 18:10:17 +0000 (11:10 -0700)
committerScott Main <smain@google.com>
Fri, 5 Jun 2009 20:54:06 +0000 (13:54 -0700)
remove the lists.js file from the <head>, which slows down page
load a lot (over 300K), and instead load it dynamically on page load.
also remove navtree_data.js from the <head>, which also slows the load
and is only used in the reference when in tree view. This file is now
loaded during the initialization of the nav tree.

tools/droiddoc/templates-sdk/customization.cs patch | blob | history
tools/droiddoc/templates/assets/android-developer-docs.js patch | blob | history
tools/droiddoc/templates/assets/navtree.js patch | blob | history
tools/droiddoc/templates/head_tag.cs patch | blob | history

diff --git a/tools/droiddoc/templates-sdk/customization.cs b/tools/droiddoc/templates-sdk/customization.cs
index 0cb85e8..9ec1f44 100644 (file)
--- a/tools/droiddoc/templates-sdk/customization.cs
+++ b/tools/droiddoc/templates-sdk/customization.cs
@@ -151,8 +151,9 @@ def:default_left_nav() ?>
       if (!isMobile) {
         $("<a href='#' id='nav-swap' onclick='swapNav();return false;' style='font-size:10px;line-height:9px;margin-left:1em;text-decoration:none;'><span id='tree-link'>Use Tree Navigation</span><span id='panel-link' style='display:none'>Use Panel Navigation</span></a>").appendTo("#side-nav");
         chooseDefaultNav();
-        if ($("#nav-tree").is(':visible')) init_navtree("nav-tree", "<?cs var:toroot ?>", NAVTREE_DATA);
-        else {
+        if ($("#nav-tree").is(':visible')) {
+          init_default_navtree("<?cs var:toroot ?>");
+        } else {
           addLoadEvent(function() {
             scrollIntoView("packages-nav");
             scrollIntoView("classes-nav");
diff --git a/tools/droiddoc/templates/assets/android-developer-docs.js b/tools/droiddoc/templates/assets/android-developer-docs.js
index 016fa4e..160e492 100644 (file)
--- a/tools/droiddoc/templates/assets/android-developer-docs.js
+++ b/tools/droiddoc/templates/assets/android-developer-docs.js
@@ -31,6 +31,15 @@ if ((agent.indexOf("Mobile") != -1) ||
   addLoadEvent(mobileSetup);
 }
 
+/* loads the lists.js file to the page. 
+Loading this in the head was slowing page load time */
+addLoadEvent( function() {
+  var lists = document.createElement("script");
+  lists.setAttribute("type","text/javascript");
+  lists.setAttribute("src", toRoot+"reference/lists.js");
+  $("head").append($(lists));
+} );
+
 window.onresize = resizeAll;
 
 function mobileSetup() {
@@ -282,7 +291,7 @@ function swapNav() {
     nav_pref = NAV_PREF_PANELS;
   } else {
     nav_pref = NAV_PREF_TREE;
-    init_navtree("nav-tree", toRoot, NAVTREE_DATA);
+    init_default_navtree(toRoot);
   }
   var date = new Date();
   date.setTime(date.getTime()+(10*365*24*60*60*1000)); // keep this for 10 years
diff --git a/tools/droiddoc/templates/assets/navtree.js b/tools/droiddoc/templates/assets/navtree.js
index f48e1dc..8e7a91c 100644 (file)
--- a/tools/droiddoc/templates/assets/navtree.js
+++ b/tools/droiddoc/templates/assets/navtree.js
@@ -144,8 +144,20 @@ function find_page(url, data)
   return null;
 }
 
+function load_navtree_data(toroot) {
+  var navtreeData = document.createElement("script");
+  navtreeData.setAttribute("type","text/javascript");
+  navtreeData.setAttribute("src", toroot+"navtree_data.js");
+  $("head").append($(navtreeData));
+} 
+
+function init_default_navtree(toroot) {
+  load_navtree_data(toroot);
+  init_navtree("nav-tree", toroot, NAVTREE_DATA);
+}
+
 function init_navtree(navtree_id, toroot, root_nodes)
-{
+{  
   var me = new Object();
   me.toroot = toroot;
   me.node = new Object();
diff --git a/tools/droiddoc/templates/head_tag.cs b/tools/droiddoc/templates/head_tag.cs
index 61559e1..f721403 100644 (file)
--- a/tools/droiddoc/templates/head_tag.cs
+++ b/tools/droiddoc/templates/head_tag.cs
@@ -11,14 +11,12 @@ else ?>
 <link href="<?cs var:toroot ?>assets/android-developer-docs.css" rel="stylesheet" type="text/css" /><?cs 
 /if ?>
 <script src="<?cs var:toroot ?>assets/search_autocomplete.js" type="text/javascript"></script>
-<script src="<?cs var:toroot ?>reference/lists.js" type="text/javascript"></script>
 <script src="<?cs var:toroot ?>assets/jquery-resizable.min.js" type="text/javascript"></script>
 <script src="<?cs var:toroot ?>assets/android-developer-docs.js" type="text/javascript"></script>
 <script type="text/javascript">
   setToRoot("<?cs var:toroot ?>");
 </script><?cs 
 if:reference ?>
-<script src="<?cs var:toroot ?>navtree_data.js" type="text/javascript"></script>
 <script src="<?cs var:toroot ?>assets/navtree.js" type="text/javascript"></script><?cs 
 /if ?>
 <noscript>
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