--- a/MoinMoin/static/js/index_action.js	Sun Jul 15 21:19:17 2012 +0530
+++ b/MoinMoin/static/js/index_action.js	Sun Jul 15 21:27:27 2012 +0530
@@ -1,121 +1,250 @@
 /*
- * Script for the actions performed on the items at index page.
+ * Click and submit handlers for form elements on the global index page.
  * Copyright 2011, AkashSinha<akash2607@gmail.com>
+ * License: GNU GPL v2 (or any later version), see LICENSE.txt for details.
  */
+
 /*jslint browser: true, */
 /*global $:false */
 
-var actionLoading = [];
-actionLoading["delete"] = "Deleting..";
-actionLoading.destroy = "Destroying..";
-
-var actionDone = [];
-actionDone["delete"] = "deleted";
-actionDone.destroy = "destroyed";
-
-function enablelink(downloadlink) {
-    "use strict";
-    var url = downloadlink.attr("title");
-    downloadlink.attr("href", url);
-    downloadlink.addClass("active-link");
-}
-
-function disablelink(downloadlink) {
-    "use strict";
-    downloadlink.attr("href", "about:blank");
-    downloadlink.removeClass("active-link");
-}
-
-function showpop(action) {
-    "use strict";
-    $(".popup-container").css("display", "none");
-    if (action === "newitem") {
-        $("#popup-for-newitem").css("display", "block");
-        $("#file_upload").appendTo("#popup-for-newitem .popup-body");
-        $(".upload-form").css("display", "block");
-    } else {
-        $("#popup-for-action").css("display", "block");
-        $(".popup-comment").removeClass("blank");
-        $(".popup-comment").val("");
-        $(".popup-action").val(action);
-    }
-    $("#popup").fadeIn();
-    $("#lightbox").css("display", "block");
-}
-
-function hidepop() {
-    "use strict";
-    $("#popup").css("display", "none");
-    $("#lightbox").css("display", "none");
-}
-
-function hide(item_link) {
-    "use strict";
-    item_link.parent().remove();
-}
-
-function show_conflict(item_link) {
-    "use strict";
-    item_link.removeClass().addClass("moin-conflict");
-    item_link.parent().removeClass();
-}
-
-function do_action(comment, action) {
-    "use strict";
-    var links = [], itemnames, actionTrigger, url;
-    $(".selected-item").children("a.moin-item").each(function () {
-        var itemname = $(this).attr("title");
-        links.push(itemname);
-    });
-    itemnames = JSON.stringify(links);
-    actionTrigger = "moin-" + action + "-trigger";
-    url = $("#" + actionTrigger).attr("data-actionurl");
-    $("#popup").css("display", "none");
-    $(".moin-index-message span").text(actionLoading[action]);
-    $(".moin-index-message").css("display", "block");
-    $.post(url, {
-        itemnames: itemnames,
-        comment: comment
-    }, function (data) {
-        var itemnames = data.itemnames,
-            action_status = data.status,
-            success_item = 0,
-            left_item = 0,
-            message;
-        $.each(itemnames, function (itemindex, itemname) {
-            if (action_status[itemindex]) {
-                hide($('.selected-item').children('a.moin-item[title="' + itemname + '"]'));
-                success_item += 1;
-            } else {
-                show_conflict($('.selected-item').children('a.moin-item[title="' + itemname + '"]'));
-                left_item += 1;
-            }
-        });
-        message = "Items " + actionDone[action] + ": " + success_item;
-        if (left_item) {
-            message += ", Items not " + actionDone[action] + ": " + left_item + ".";
-        }
-        $(".moin-index-message span").text(message);
-        setTimeout(function () {
-            $(".moin-index-message").fadeOut();
-        }, 4000);
-    }, "json");
-}
-
+// This anonymous function is executed once after a global index page loads.
 $("document").ready(function () {
     "use strict";
+
+    var POPUP_FADE_TIME = 200, // fade in, fade out times for selected popups
+        IFRAME_CREATE_DELAY = 200, // delay between start of multiple downloads
+        IFRAME_REMOVE_DELAY = 3000, // life expectancy of iframe used for file downloads
+        MESSAGE_VIEW_TIME = 4000, // life expectancy of delete/destroy status messages
+        ACTION_LOADING = {"delete": "Deleting..", "destroy": "Destroying.."}, // process started messages
+        ACTION_DONE = {"delete": "deleted", "destroy": "destroyed"}; // process completed messages
+
+    // called by click handlers New Item, Delete item, and Destroy item within Actions dropdown menu
+    function showpop(action) {
+        // hide Actions popup and show either New Item or Comment popup
+        $(".popup-container").css("display", "none");
+        if (action === "newitem") {
+            $("#popup-for-newitem").css("display", "block");
+            $("#file_upload").appendTo("#popup-for-newitem .popup-body");
+            $(".upload-form").css("display", "block");
+        } else {
+            $("#popup-for-action").css("display", "block");
+            $(".popup-comment").removeClass("blank");
+            $(".popup-comment").val("");
+            $(".popup-action").val(action);
+        }
+        $("#popup").fadeIn();
+        $("#lightbox").css("display", "block");
+    }
+
+    // called by click handlers within "Create new item" and "Please provide comment" popups
+    function hidepop() {
+        // hide popup
+        $("#popup").css("display", "none");
+        $("#lightbox").css("display", "none");
+    }
+
+    // called by Actions Download click handler
+    function startFileDownload(elem) {
+        // create a hidden iframe to start a file download, then remove it after 3 seconds
+        var frame = $('<iframe style="display: none;"></iframe>');
+        frame.attr('src', $(elem).attr('href'));
+        $(elem).after(frame);
+        setTimeout(function () { frame.remove(); }, IFRAME_REMOVE_DELAY);
+    }
+
+    // called by do_action when an item is successfully deleted or destroyed
+    function hide(item_link) {
+        // remove a deleted or destroyed item from current display
+        item_link.parent().remove();
+    }
+
+    // called by do_action when item cannot be deleted or destroyed
+    function show_conflict(item_link) {
+        // mark an item as having failed a delete or destroy operation
+        item_link.removeClass().addClass("moin-conflict");
+        item_link.parent().removeClass();
+    }
+
+    // executed via the "provide comment" popup triggered by an Actions Delete or Destroy selection
+    function do_action(comment, action) {
+        // create an array of selected item names
+        var links = [],
+            itemnames,
+            actionTrigger,
+            url;
+        $(".selected-item").children("a.moin-item").each(function () {
+            var itemname = $(this).attr("title");
+            links.push(itemname);
+        });
+        // hide comment popup, display "deleting..." or "destroying..."
+        $("#popup").css("display", "none");
+        $(".moin-index-message span").text(ACTION_LOADING[action]);
+        $(".moin-index-message").css("display", "block");
+        // create a transaction to delete or destroy selected items
+        itemnames = JSON.stringify(links);
+        actionTrigger = "moin-" + action + "-trigger";
+        url = $("#" + actionTrigger).attr("data-actionurl");
+        $.post(url, {
+            itemnames: itemnames,
+            comment: comment
+        }, function (data) {
+            // process post results
+            var itemnames = data.itemnames,
+                action_status = data.status,
+                success_item = 0,
+                left_item = 0,
+                message;
+            $.each(itemnames, function (itemindex, itemname) {
+                // hide (remove) deleted/destroyed items, or show conflict (ACL rules, or ?)
+                if (action_status[itemindex]) {
+                    hide($('.selected-item').children('a.moin-item[title="' + itemname + '"]'));
+                    success_item += 1;
+                } else {
+                    show_conflict($('.selected-item').children('a.moin-item[title="' + itemname + '"]'));
+                    left_item += 1;
+                }
+            });
+            // show a message summarizing delete/destroy results for 4 seconds
+            message = "Items " + ACTION_DONE[action] + ": " + success_item;
+            if (left_item) {
+                message += ", Items not " + ACTION_DONE[action] + ": " + left_item + ".";
+            }
+            $(".moin-index-message span").text(message);
+            setTimeout(function () {
+                $(".moin-index-message").fadeOut();
+            }, MESSAGE_VIEW_TIME);
+        }, "json");
+    }
+
+    // -- Select All handlers start here
+
+    // add click handler to "Select All" tab to select/deselect all items
+    $(".moin-select-allitem").click(function () {
+        // toggle classes
+        if ($(this).hasClass("allitem-toselect")) {
+            $(".moin-item-index div").removeClass().addClass("selected-item");
+            $(this).removeClass("allitem-toselect").addClass("allitem-selected");
+        } else {
+            $(this).removeClass("allitem-selected").addClass("allitem-toselect");
+            $(".moin-item-index div").removeClass();
+        }
+    });
+
+    // -- Actions handlers start here
+
+    // add click handler to "Actions" drop down list
+    // also executed via .click call when user clicks on an action (new, download, delete, destroy)
+    $(".show-action").click(function () {
+        // show/hide actions drop down list
+        var actionsDiv = $(this).parent().parent();
+        if (actionsDiv.find("ul:first").is(":visible")) {
+            actionsDiv.find("ul:first").fadeOut(POPUP_FADE_TIME);
+            actionsDiv.removeClass("action-visible");
+        } else {
+            actionsDiv.find("ul:first").fadeIn(POPUP_FADE_TIME);
+            actionsDiv.addClass("action-visible");
+        }
+    });
+
+    // add click handler to "New Item" action tab entry
+    $("#moin-create-newitem").click(function () {
+        // show new item popup and hide actions dropdown
+        showpop("newitem");
+        $(".show-action").trigger("click");
+    });
+
+    // add click handler to close button "X" on new item popup
+    $(".popup-cancel").click(function () {
+        // if files are selected for upload, add to drag and drop area; hide popup
+        if ($("#popup-for-newitem:visible").length) {
+            $("#file_upload").appendTo("#moin-upload-cont");
+            $(".upload-form").css("display", "none");
+        }
+        hidepop();
+    });
+
+    // add submit handler to "Create" button on new item popup
+    // This is a workaround for browsers that do not support "required" attribute (ie9, safari 5.1)
+    // note: The creation of a new item is performed via action=... attribute on form
+    $("#popup-for-newitem").find("form:first").submit(function () {
+        // if no item name was provided show hint and stop form action
+        var itembox = $(this).children("input[name='newitem']"),
+            itemname = itembox.val();
+        if ($.trim(itemname) === "") {
+            itembox.addClass("blank");
+            itembox.focus();
+            return false;
+        }
+    });
+
+    // add click handler to "Download" button of Actions dropdown
+    $("#moin-download-trigger").click(function () {
+        if (!($("div.selected-item").length)) {
+            // no items selected, show message for 4 seconds
+            $(".moin-index-message span").text("Nothing was selected.");
+            $(".moin-index-message").fadeIn();
+            setTimeout(function () {
+                $(".moin-index-message").fadeOut();
+            }, MESSAGE_VIEW_TIME);
+        } else {
+            // download selected files (add small delay to start of multiple downloads for IE9)
+            $(".selected-item").children(".moin-download-link").each(function (index, element) {
+                // at 0 ms IE9 skipped 41 of 42 downloads, at 100 ms IE9 skipped 14 of 42, success at 200 ms
+                var wait = index * IFRAME_CREATE_DELAY;
+                setTimeout(function () { startFileDownload(element); }, wait);
+            });
+        }
+        // hide the list of actions
+        $(".show-action").trigger("click");
+    });
+
+    // add click handler to "Delete" and "Destroy" buttons of Actions dropdown
+    $(".moin-action-tab").click(function () {
+        // Show error msg if nothing selected, else show comment popup. Hide actions dropdown.
+        if (!($("div.selected-item").length)) {
+            $(".moin-index-message span").text("Nothing was selected.");
+            $(".moin-index-message").fadeIn();
+            setTimeout(function () {
+                $(".moin-index-message").fadeOut();
+            }, MESSAGE_VIEW_TIME);
+        } else {
+            if (this.id === "moin-delete-trigger") {
+                showpop("delete");
+            } else {
+                showpop("destroy");
+            }
+        }
+        $(".show-action").trigger("click");
+    });
+
+    // add click handler to "Submit" button on "Please provide comment..." popup
+    $(".popup-submit").click(function () {
+        // process delete or destroy action
+        var comment = $(".popup-comment").val(),
+            action = $(".popup-action").val();
+        comment = $.trim(comment);
+        do_action(comment, action);
+        hidepop();
+    });
+
+    // -- Filter by content type handlers start here
+
+    // add click handler to "Filter by content type" button
     $(".moin-contenttypes-wrapper").children("div").click(function () {
+        // show/hide content type dropdown
         var wrapper = $(this).parent();
         if (wrapper.find("form:visible").length) {
-            $(".moin-contenttypes-wrapper").find("form").fadeOut(200);
+            $(".moin-contenttypes-wrapper").find("form").fadeOut(POPUP_FADE_TIME);
             $(this).removeClass().addClass("ct-hide");
         } else {
-            $(".moin-contenttypes-wrapper").find("form").fadeIn(200);
+            $(".moin-contenttypes-wrapper").find("form").fadeIn(POPUP_FADE_TIME);
             $(this).removeClass().addClass("ct-shown");
         }
     });
 
+    // add click handler to "Toggle" button on "Filter by content type" dropdown
     $(".filter-toggle").click(function () {
+        // reverse checked/unchecked for each content type
         $(".moin-contenttypes-wrapper form").find("input[type='checkbox']").each(function () {
             if ($(this).attr("checked")) {
                 $(this).removeAttr("checked");
@@ -126,7 +255,9 @@
         return false;
     });
 
+    // add click handler to "More" button on "Filter by content type" dropdown
     $(".filter-more").click(function () {
+        // show/hide help text describing each content type
         var helper_texts = $(".moin-contenttypes-wrapper form").find(".helper-text:visible");
         if (helper_texts.length) {
             helper_texts.fadeOut();
@@ -137,113 +268,19 @@
         return false;
     });
 
+    // -- individual item handlers start here
+
+    // add click handlers to all items shown on global index page
     $(".moin-select-item").click(function () {
-        var downloadlink;
+        // toggle selection classes
         if ($(this).parent().hasClass("selected-item")) {
             $(this).parent().removeClass("selected-item");
-            downloadlink = $(this).parent().children(".moin-download-link");
-            disablelink(downloadlink);
             if ($(".moin-select-allitem").hasClass("allitem-selected")) {
                 $(".moin-select-allitem").removeClass("allitem-selected").addClass("allitem-toselect");
             }
         } else {
             $(this).parent().addClass("selected-item");
-            downloadlink = $(this).parent().children(".moin-download-link");
-            enablelink(downloadlink);
-        }
-    });
-
-    $(".show-action").click(function () {
-        var actionsDiv = $(this).parent().parent();
-        if (actionsDiv.find("ul:first").is(":visible")) {
-            actionsDiv.find("ul:first").fadeOut(200);
-            actionsDiv.removeClass("action-visible");
-        } else {
-            actionsDiv.find("ul:first").fadeIn(200);
-            actionsDiv.addClass("action-visible");
-        }
-    });
-
-    $(".moin-select-allitem").click(function () {
-        var downloadlink;
-        if ($(this).hasClass("allitem-toselect")) {
-            $(".moin-item-index div").removeClass().addClass("selected-item");
-            $(".moin-item-index div").each(function () {
-                downloadlink = $(this).children(".moin-download-link");
-                enablelink(downloadlink);
-            });
-            $(this).removeClass("allitem-toselect").addClass("allitem-selected");
-        } else {
-            $(this).removeClass("allitem-selected").addClass("allitem-toselect");
-            $(".moin-item-index div").removeClass();
-            $(".moin-item-index div").each(function () {
-                downloadlink = $(this).children(".moin-download-link");
-                disablelink(downloadlink);
-            });
         }
     });
-
-    $(".moin-action-tab").click(function () {
-        if (!($("div.selected-item").length)) {
-            $(".moin-index-message span").text("Nothing was selected.");
-            $(".moin-index-message").fadeIn();
-            setTimeout(function () {
-                $(".moin-index-message").fadeOut();
-            }, 4000);
-        } else {
-            if (this.id === "moin-delete-trigger") {
-                showpop("delete");
-            } else {
-                showpop("destroy");
-            }
-        }
-        $(".show-action").trigger("click");
-    });
-
-    $("#moin-create-newitem").click(function () {
-        showpop("newitem");
-        $(".show-action").trigger("click");
-
-    });
-
-    $(".popup-cancel").click(function () {
-        if ($("#popup-for-newitem:visible").length) {
-            $("#file_upload").appendTo("#moin-upload-cont");
-            $(".upload-form").css("display", "none");
-        }
-        hidepop();
-    });
+});
 
-    $(".popup-submit").click(function () {
-        var comment = $(".popup-comment").val(),
-            action = $(".popup-action").val();
-        comment = $.trim(comment);
-        do_action(comment, action);
-        hidepop();
-    });
-
-    $("#popup-for-newitem").find("form:first").submit(function () {
-        var itembox = $(this).children("input[name='newitem']"),
-            itemname = itembox.val();
-        if ($.trim(itemname) === "") {
-            itembox.addClass("blank");
-            itembox.focus();
-            return false;
-        }
-    });
-
-    $("#moin-download-trigger").click(function () {
-        if (!($("a.active-link").length)) {
-            $(".moin-index-message span").text("Nothing was selected.");
-            $(".moin-index-message").fadeIn();
-            setTimeout(function () {
-                $(".moin-index-message").fadeOut();
-            }, 4000);
-        }
-        $(".show-action").trigger("click");
-    });
-
-    $('.moin-download-link').multiDownload();
-    $('#moin-download-trigger').multiDownload('click', { delay: 3000 });
-
-});

--- a/MoinMoin/templates/index.html	Sun Jul 15 21:19:17 2012 +0530
+++ b/MoinMoin/templates/index.html	Sun Jul 15 21:27:27 2012 +0530
@@ -9,7 +9,6 @@
 
 {% block head_scripts %}
 {{ super() }}
-    <script src="{{ url_for('serve.files', name='jquery_multi_download', filename='jquery.multiDownload.js') }}"></script>
     <script src="{{ url_for('static', filename='js/index_action.js') }}"></script>
 {% endblock %}
 
@@ -121,8 +120,7 @@
             <div>
                 <span class="moin-select-item">&nbsp;</span>
                 {% set mimetype = "application/x.moin.download" %}
-                <a href="about:blank" title="{{ url_for('.download_item', item_name=fullname, mimetype=mimetype) }}"
-                   class="moin-download-link">
+                <a href="{{ url_for('.download_item', item_name=fullname, mimetype=mimetype) }}" class="moin-download-link">
                 </a>
                 <a href="{{ url_for('.show_item', item_name=fullname) }}"
                    class="{{ contenttype|contenttype_to_class }} moin-item"

--- a/MoinMoin/themes/foobar/templates/index.html	Sun Jul 15 21:19:17 2012 +0530
+++ b/MoinMoin/themes/foobar/templates/index.html	Sun Jul 15 21:27:27 2012 +0530
@@ -2,7 +2,6 @@
 {% import "forms.html" as forms with context %}
 {% block head_scripts %}
 {{ super() }}
-    <script src="{{ url_for('serve.files', name='jquery_multi_download', filename='jquery.multiDownload.js') }}"></script>
     <script src="{{ url_for('static', filename='js/index_action.js') }}"></script>
 {% endblock %}
 
@@ -115,8 +114,7 @@
             <div>
                 <span class="moin-select-item">&nbsp;</span>
                 {% set mimetype = "application/x.moin.download" %}
-                <a href="about:blank" title="{{ url_for('.download_item', item_name=fullname, mimetype=mimetype) }}"
-                   class="moin-download-link">
+                <a href="{{ url_for('.download_item', item_name=fullname, mimetype=mimetype) }}" class="moin-download-link">
                 </a>
                 <a href="{{ url_for('.show_item', item_name=fullname) }}" 
                    class="{{ contenttype|contenttype_to_class }} moin-item"

--- a/setup.py	Sun Jul 15 21:19:17 2012 +0530
+++ b/setup.py	Sun Jul 15 21:27:27 2012 +0530
@@ -105,7 +105,6 @@
         'XStatic-TWikiDraw-moin>=2004.10.23.2',
         'XStatic-AnyWikiDraw>=0.14.2',
         'XStatic-svg-edit-moin>=2011.07.07.2',
-        'XStatic-multiDownload>=20110717.1',
     ],
     # optional features and their list of requirements
     extras_require={

--- a/wikiconfig.py	Sun Jul 15 21:19:17 2012 +0530
+++ b/wikiconfig.py	Sun Jul 15 21:27:27 2012 +0530
@@ -61,7 +61,7 @@
     )
     # see https://bitbucket.org/thomaswaldmann/xstatic for infos about xstatic:
     from xstatic.main import XStatic
-    mod_names = ['jquery', 'jquery_file_upload', 'jquery_multi_download',
+    mod_names = ['jquery', 'jquery_file_upload',
                  'ckeditor',
                  'svgweb',
                  'svgedit_moin', 'twikidraw_moin', 'anywikidraw',