Tapestry 5
  1. Tapestry 5
  2. TAP5-1541

Optimization load of scripts (javascripts and stylesheets)

    Details

    • Type: Improvement Improvement
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 5.3, 5.2.4
    • Fix Version/s: 5.3
    • Component/s: tapestry-core
    • Labels:
      None

      Description

      While loading the script in the page, we are checking if the list of extra scripts are already included in the document.scripts or document.styleSheets.

      This process involves going through this documents scripts for each script we are loading, and since we are doing some processing each time the client side execution time it seriously affected.

      In order to reduce these process needed for each document script, we are creating a temporary array with the processed info, so we only need to do the check if the scripts are in this array.

          1. Eclipse Workspace Patch 1.0
            #P tapestry-core
            Index: src/main/resources/org/apache/tapestry5/tapestry.js
            ===================================================================
          • src/main/resources/org/apache/tapestry5/tapestry.js (revision 1132663)
            +++ src/main/resources/org/apache/tapestry5/tapestry.js (working copy)
            @@ -2097,28 +2097,47 @@
      • elements) contains the given asset URL.
      • @param collection
      • * @param prop
      • * property to check ('src' for script, 'href' to style).
      • @param assetURL
      • complete URL (i.e., with protocol, host and port) to the asset
        */
      • contains : function(collection, prop, assetURL) {
      • return $A(collection).any(
        + contains : function(collection, assetURL) {
        + return collection.any(
        function(element) { - var existing = element[prop]; - if (!existing || existing.blank()) - return false; - - var complete = Prototype.Browser.IE ? Tapestry - .rebuildURL(existing) : existing; - - return complete == assetURL; + return element == assetURL; + }

        );

      return false;
      },
      +
      + /**
      + * Return collection with no blank elements
      + *
      + * @param collection
      + * @param prop
      + * property to check ('src' for script, 'href' to style).
      + */
      + getDocumentCollection : function(collection, prop) {
      + var documentScrips = [];

      + $A(collection).each(
      + function(element)

      { + var existing = element[prop] + + if (!existing || existing.blank()) + return false; + + var complete = Prototype.Browser.IE ? Tapestry + .rebuildURL(existing) : existing; + + documentScrips.push(complete); + }

      + );
      +
      + return $A(documentScrips);
      + },
      +
      /**

      • Add scripts, as needed, to the document, then waits for them all to load,
      • and finally, calls the callback function.
        @@ -2131,13 +2150,14 @@
        addScripts : function(scripts, callback) {

      var scriptsToLoad = [];
      +
      + var documentScrips = this.getDocumentCollection(document.scripts, "src");

      /* scripts may be null or undefined */
      (scripts || []).each(function(s) {
      var assetURL = Tapestry.rebuildURL(s);

      • if (Tapestry.ScriptManager.contains(document.scripts, "src",
      • assetURL))
        + if (Tapestry.ScriptManager.contains(documentScrips, assetURL))
        return;

      scriptsToLoad.push(assetURL);
      @@ -2167,13 +2187,14 @@
      return;

      var head = $$('head').first();
      +
      + var documentStyleSheets = this.getDocumentCollection(document.styleSheets, "href");

      $(stylesheets).each(
      function(s) {
      var assetURL = Tapestry.rebuildURL(s.href);

      • if (Tapestry.ScriptManager.contains(document.styleSheets,
      • 'href', assetURL))
        + if (Tapestry.ScriptManager.contains(documentStyleSheets, assetURL))
        return;
        var element = new Element('link', {
        type : 'text/css',

        Activity

        Hide
        Pedro Ayala added a comment -

        Please ignore the first attachment, the second one add a simple optimization.

        Show
        Pedro Ayala added a comment - Please ignore the first attachment, the second one add a simple optimization.
        Hide
        Howard M. Lewis Ship added a comment -

        This was fixed as part of TAP5-1708.

        Show
        Howard M. Lewis Ship added a comment - This was fixed as part of TAP5-1708 .

          People

          • Assignee:
            Howard M. Lewis Ship
            Reporter:
            Pedro Ayala
          • Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development