/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* JavaScript for SOGoContacts */

var cachedContacts = {};

var usersRightsWindowHeight = 200;
var usersRightsWindowWidth = 450;

var Contact = {
    currentAddressBook: null,
    currentContact: null,
    deleteContactsRequestCount: null
};

function validateEditorInput(sender) {
    var errortext = "";
    var field;
  
    field = document.pageform.subject;
    if (field.value == "")
        errortext = errortext + labels.error_missingsubject + "\n";

    if (!hasRecipients())
        errortext = errortext + labels.error_missingrecipients + "\n";
  
    if (errortext.length > 0) {
        alert(labels.error_validationfailed + ":\n"
              + errortext);
        return false;
    }
    return true;
}

function openContactsFolder(contactsFolder, reload, idx) {
    if ((contactsFolder && contactsFolder != Contact.currentAddressBook)
        || reload) {
        Contact.currentAddressBook = contactsFolder;
        var url = URLForFolderID(Contact.currentAddressBook) +
            "/view?noframe=1";

        var searchValue = search["value"];
        if (searchValue && searchValue.length > 0)
            url += ("&search=" + search["criteria"]
                    + "&value=" + escape(searchValue.utf8encode()));
        var sortAttribute = sorting["attribute"];
        if (sortAttribute && sortAttribute.length > 0)
            url += ("&sort=" + sorting["attribute"]
                    + "&asc=" + sorting["ascending"]);

        var selection;
        if (idx) {
            selection = [idx];
        }
        else if (contactsFolder == Contact.currentAddressBook) {
            var contactsList = $("contactsList");
            if (contactsList)
                selection = contactsList.getSelectedRowsId();
            //        else
            //           window.alert("no contactsList");
        }
        else
            selection = null;

        if (document.contactsListAjaxRequest) {
            document.contactsListAjaxRequest.aborted = true;
            document.contactsListAjaxRequest.abort();
        }
        document.contactsListAjaxRequest
            = triggerAjaxRequest(url, contactsListCallback, selection);
    }
}

function openContactsFolderAtIndex(element) {
    var idx = element.getAttribute("idx");
    var url = URLForFolderID(Contact.currentAddressBook) + "/view?noframe=1&idx=" + idx;

    if (document.contactsListAjaxRequest) {
        document.contactsListAjaxRequest.aborted = true;
        document.contactsListAjaxRequest.abort();
    }
    document.contactsListAjaxRequest
        = triggerAjaxRequest(url, contactsListCallback);
}

function contactsListCallback(http) {
    if (http.readyState == 4) {
        if (http.status == 200) {
            document.contactsListAjaxRequest = null;
            
            var div = $("contactsListContent");
            var table = $("contactsList");
            if (table) {
                // Update table
                var data = http.responseText;
                var html = data.replace(/^(.*\n)*.*(<table(.*\n)*)$/, "$2");
                var tbody = table.tBodies[0];
                var tmp = document.createElement('div');
                $(tmp).update(html);
                table.replaceChild($(tmp).select("table tbody")[0], tbody);
            }
            else {
                // Add table
                div.update(http.responseText);
                table = $("contactsList");
                table.multiselect = true;
                table.observe("mousedown", onContactSelectionChange);
                configureSortableTableHeaders(table);
                TableKit.Resizable.init(table, {'trueResize' : true, 'keepWidth' : true});
                configureDraggables();
            }
            var rows = table.tBodies[0].rows;
            for (var i = 0; i < rows.length; i++) {
                var row = $(rows[i]);
                row.observe("mousedown", onRowClick);
                row.observe("dblclick", onContactRowDblClick);
                row.observe("selectstart", listRowMouseDownHandler);
                row.observe("contextmenu", onContactContextMenu);
            }
            
            if (sorting["attribute"] && sorting["attribute"].length > 0) {
                var sortHeader;
                if (sorting["attribute"] == "c_cn")
                    sortHeader = $("nameHeader");
                else if (sorting["attribute"] == "c_mail")
                    sortHeader = $("mailHeader");
                else if (sorting["attribute"] == "c_screenname")
                    sortHeader = $("screenNameHeader");
                else if (sorting["attribute"] == "c_o")
                    sortHeader = $("orgHeader");
                else if (sorting["attribute"] == "c_telephonenumber")
                    sortHeader = $("phoneHeader");
                else
                    sortHeader = null;
                
                if (sortHeader) {
                    var sortImages = $(table.tHead).select(".sortImage");
                    $(sortImages).each(function(item) {
                            item.remove();
                        });
                    
                    var sortImage = createElement("img", "messageSortImage", "sortImage");
                    sortHeader.insertBefore(sortImage, sortHeader.firstChild);
                    if (sorting["ascending"])
                        sortImage.src = ResourcesURL + "/title_sortdown_12x12.png";
                    else
                        sortImage.src = ResourcesURL + "/title_sortup_12x12.png";
                }
            }
            
            var selected = http.callbackData;
            if (selected) {
                for (var i = 0; i < selected.length; i++) {
                    var row = $(selected[i]);
                    if (row) {
                        var rowPosition = row.rowIndex * row.getHeight();
                        if (div.getHeight() < rowPosition)
                            div.scrollTop = rowPosition; // scroll to selected contact
                        row.selectElement();
                    }
                }
            }
        }
        else {
            var table = $("contactsList");
            if (table) {
                var sortImages = $(table.tHead).select(".sortImage");
                $(sortImages).each(function(item) {
                        item.remove();
                    });
                var tBody = $(table.tBodies[0]);
                var length = tBody.rows.length;
                for (var i = length - 1; i > -1; i--)
                    tBody.removeChild(tBody.rows[i]);
            }
        }
    }
    else
        log ("ajax problem 1: status = " + http.status);
}

function onContactContextMenu(event) {
    var contactsList = $("contactsList");
    var menu = $("contactMenu");
    menu.observe("hideMenu", onContactContextMenuHide);
    if (contactsList)
        popupMenu(event, "contactMenu", contactsList.getSelectedRows());
}

function onContactContextMenuHide(event) {
    var topNode = $("contactsList");

    if (topNode.menuSelectedEntry) {
        $(topNode.menuSelectedEntry).deselect();
        topNode.menuSelectedEntry = null;
    }
    if (topNode.menuSelectedRows) {
        var nodes = topNode.menuSelectedRows;
        for (var i = 0; i < nodes.length; i++)
            $(nodes[i]).selectElement();
        topNode.menuSelectedRows = null;
    }
}

function onFolderMenuHide(event) {
    var topNode = $('d');

    if (topNode.menuSelectedEntry) {
        topNode.menuSelectedEntry.deselect();
        topNode.menuSelectedEntry = null;
    }
    if (topNode.selectedEntry)
        topNode.selectedEntry.selectElement();
}

function _onContactMenuAction(folderItem, action, refresh) {
    var selectedFolders = $("contactFolders").getSelectedNodes();
    var folderId = $(folderItem).readAttribute("folderId");
    if (folderId)
      folderId = folderId.substring (1);
    if (Object.isArray(document.menuTarget) && selectedFolders.length > 0) {
        var selectedFolderId = $(selectedFolders[0]).readAttribute("id");
        var contactIds = $(document.menuTarget).collect(function(row) {
                return row.getAttribute("id");
            });

        for (var i = 0; i < contactIds.length; i++) {
            if (contactIds[i].endsWith ("vlf")) {
                alert (labels["Lists can't be moved or copied."]);
                return false;
            }
        }

        var url = ApplicationBaseURL + selectedFolderId + "/" + action 
            + "?folder=" + folderId + "&uid="
            + contactIds.join("&uid=");
    
        if (refresh)
            triggerAjaxRequest(url, actionContactCallback, selectedFolderId);
        else
            triggerAjaxRequest(url, actionContactCallback);
    }
}

function onContactMenuCopy(event) {
    _onContactMenuAction(this, "copy", false);
}

function onContactMenuMove(event) {
    _onContactMenuAction(this, "move", true);
}

function onMenuExportContact (event) {
    var selectedFolders = $("contactFolders").getSelectedNodes();
    var selectedFolderId = $(selectedFolders[0]).readAttribute("id");
    if (selectedFolderId != "/shared") {
        var contactIds = $(document.menuTarget).collect(function(row) {
                                                        return row.getAttribute("id");
                                                        });
        var url = ApplicationBaseURL + selectedFolderId + "/export"
          + "?uid=" + contactIds.join("&uid=");
        window.location.href = url;
    }
}

function actionContactCallback(http) {
    if (http.readyState == 4)
        if (isHttpStatus204(http.status)) {
            var refreshFolderId = http.callbackData;
            if (refreshFolderId)
                openContactsFolder(refreshFolderId, true);
        }
        else {
            var html = new Element("div").update(http.responseText);
            var error = html.select("p").first().firstChild.nodeValue.trim();
            log("actionContactCallback failed: error " + http.status + " (" + error + ")");
            if (parseInt(http.status) == 403)
                window.alert(clabels["You don't have the required privileges to perform the operation."]);
            else if (error)
                window.alert(labels[error]);
            refreshCurrentFolder();
        }
}

function loadContact(idx) {
    if (document.contactAjaxRequest) {
        document.contactAjaxRequest.aborted = true;
        document.contactAjaxRequest.abort();
    }

    if (cachedContacts[Contact.currentAddressBook + "/" + idx]) {
        var div = $('contactView');
        Contact.currentContact = idx;
        div.innerHTML = cachedContacts[Contact.currentAddressBook + "/" + idx];
    }
    else {
        var url = (URLForFolderID(Contact.currentAddressBook)
                   + "/" + idx + "/view?noframe=1");
        document.contactAjaxRequest
            = triggerAjaxRequest(url, contactLoadCallback, idx);
    }
}

function contactLoadCallback(http) {
    var div = $('contactView');

    if (http.readyState == 4
        && http.status == 200) {
        document.contactAjaxRequest = null;
        var content = http.responseText;
        cachedContacts[Contact.currentAddressBook + "/" + http.callbackData] = content;
        Contact.currentContact = http.callbackData;
        div.innerHTML = content;
    }
    else {
        log ("ajax problem 2: " + http.status);
        refreshCurrentFolder();
    }
}

var rowSelectionCount = 0;

validateControls();

function showElement(e, shouldShow) {
    e.style.display = shouldShow ? "" : "none";
}

function enableElement(e, shouldEnable) {
    if(!e)
        return;
    if(shouldEnable) {
        if(e.hasAttribute("disabled"))
            e.removeAttribute("disabled");
    }
    else {
        e.setAttribute("disabled", "1");
    }
}

function validateControls() {
    var e = $("moveto");
    this.enableElement(e, rowSelectionCount > 0);
}

function moveTo(uri) {
    alert("MoveTo: " + uri);
}

/* contact menu entries */
function onContactRowDblClick(event) {
    var cname = this.getAttribute('id');

    openContactWindow(URLForFolderID(Contact.currentAddressBook)
                      + "/" + cname + "/edit", cname);

    return false;
}

function onContactSelectionChange(event) {
    var rows = this.getSelectedRowsId();
  
    if (rows.length == 1) {
        var node = $(rows[0]);
        loadContact(node.getAttribute('id'));
    }
    else if (rows.length > 1) {
        $('contactView').update();
        Contact.currentContact = null;
    }
}

function onMenuEditContact(event) {
    onToolbarEditSelectedContacts(event);
}

function onMenuWriteToContact(event) {
    onToolbarWriteToSelectedContacts(event);

    if (document.body.hasClassName("popup"))
        window.close();
}

function onMenuAIMContact(event) {
    var contactRow = $(document.menuTarget.getAttribute('id'));
    var aimCell = contactRow.down('td', 2);

    window.location.href = "aim:goim?ScreenName=" + aimCell.firstChild.nodeValue;
}

function onMenuDeleteContact(event) {
    onToolbarDeleteSelectedContacts(event);
}

function onToolbarEditSelectedContacts(event) {
    var contactsList = $('contactsList');
    var rows = contactsList.getSelectedRowsId();

    if (rows.length == 0) {
        window.alert(labels["Please select a contact."]);
        return false;
    }

    for (var i = 0; i < rows.length; i++) {
        openContactWindow(URLForFolderID(Contact.currentAddressBook)
                          + "/" + rows[i] + "/edit", rows[i]);
    }

    return false;
}

function onToolbarWriteToSelectedContacts(event) {
    var contactsList = $('contactsList');
    var rows = contactsList.getSelectedRowsId();
    var rowsWithEmail = 0;

    if (rows.length == 0) {
        openMailComposeWindow(ApplicationBaseURL + "Mail/compose");
        return false;
    }

    openMailComposeWindow(ApplicationBaseURL + "../Mail/compose"
                          + "?folder=" + Contact.currentAddressBook.substring(1)
                          + "&uid=" + rows.join("&uid="));

    if (document.body.hasClassName("popup"))
        window.close();
  
    return false;
}

function onToolbarDeleteSelectedContacts(event) {
    var contactsList = $('contactsList');
    var rows = contactsList.getSelectedRowsId();

    if (rows.length) {
        var label = labels["Are you sure you want to delete the selected contacts?"];
        if (window.confirm(label)) {
            for (var i = 0; i < rows.length; i++) {
                delete cachedContacts[Contact.currentAddressBook + "/" + rows[i]];
                var urlstr = (URLForFolderID(Contact.currentAddressBook) + "/"
                              + rows[i] + "/delete");
                Contact.deleteContactsRequestCount++;
                triggerAjaxRequest(urlstr, onContactDeleteEventCallback,
                                   rows[i]);
            }
        }
    }
    else {
        window.alert(labels["Please select a contact."]);
    }

    return false;
}

function onContactDeleteEventCallback(http) {
    if (http.readyState == 4) {
        if (isHttpStatus204(http.status)) {
            var row = $(http.callbackData);
            if (Contact.currentContact == http.callbackData) {
                $("contactView").update();
                Contact.currentContact = null;
            }
            Contact.deleteContactsRequestCount--;
            if (Contact.deleteContactsRequestCount == 0) {
                var nextRow = row.next("tr");
                if (!nextRow)
                    nextRow = row.previous("tr");
                if (nextRow) {
                    Contact.currentContact = nextRow.getAttribute("id");
                    nextRow.selectElement();
                    loadContact(Contact.currentContact);
                }
            }
            row.parentNode.removeChild(row);
        }
        else if (parseInt(http.status) == 403) {
            var row = $(http.callbackData);
            var displayName = row.down("TD.displayName").firstChild.nodeValue.trim();
            Contact.deleteContactsRequestCount--;
            window.alert(labels["You cannot delete the card of \"%{0}\"."].formatted(displayName));
        }
    }
}

function newEmailTo(sender) {
    var mailto = sanitizeMailTo(sender.parentNode.parentNode.menuTarget.innerHTML);

    if (mailto.length > 0)
        openMailComposeWindow("compose?mailto=" + mailto);

    return false; /* stop following the link */
}

function onHeaderClick(event) {
    var headerId = this.getAttribute("id");
    var newSortAttribute;
    if (headerId == "nameHeader")
        newSortAttribute = "c_cn";
    else if (headerId == "mailHeader")
        newSortAttribute = "c_mail";
    else if (headerId == "screenNameHeader")
        newSortAttribute = "c_screenname";
    else if (headerId == "orgHeader")
        newSortAttribute = "c_o";
    else if (headerId == "phoneHeader")
        newSortAttribute = "c_telephonenumber";

    if (sorting["attribute"] == newSortAttribute)
        sorting["ascending"] = !sorting["ascending"];
    else {
        sorting["attribute"] = newSortAttribute;
        sorting["ascending"] = true;
    }

    refreshCurrentFolder();

    Event.stop(event);
}

function newContact(sender) {
    openContactWindow(URLForFolderID(Contact.currentAddressBook) + "/newcontact");

    return false; /* stop following the link */
}

function newList(sender) {
    openContactWindow(URLForFolderID(Contact.currentAddressBook) + "/newlist");
    return false;
}

function onFolderSelectionChange(event) {
    var folderList = $("contactFolders");
    var nodes = folderList.getSelectedNodes();

    if (event) {
        var node = getTarget(event);
        if (node.tagName == 'UL')
            return;
    }

    $("contactView").update();
    Contact.currentContact = null;

    if (nodes[0].hasClassName("denied")) {
        var div = $("contactsListContent");
        div.update();
    }
    else {
        search = {};
        $("searchValue").value = "";
        initCriteria();
        openContactsFolder(nodes[0].getAttribute("id"));
    }
}

function refreshCurrentFolder() {
    openContactsFolder(Contact.currentAddressBook, true);
}

function onConfirmContactSelection(event) {
    var tag = this.getAttribute("name");
    var folderLi = $(Contact.currentAddressBook);
    var currentAddressBookName = folderLi.innerHTML;
    var selectorList = null;
    var initialValues = null;
	
    var contactsList = $("contactsList");
    var rows = contactsList.getSelectedRows();
    for (i = 0; i < rows.length; i++) {
        var cid = rows[i].getAttribute("id");
        var cname = '' + rows[i].getAttribute("contactname");
        var email = '' + rows[i].cells[1].innerHTML;
		
        window.opener.addContact(tag, currentAddressBookName + '/' + cname,
                                 cid, cname, email);
    }

    preventDefault(event);
}

function refreshContacts(cname) {
    openContactsFolder(Contact.currentAddressBook, true, cname);
    delete cachedContacts[Contact.currentAddressBook + "/" + cname];
    loadContact(cname);

    return false;
}

function onAddressBookNew(event) {
    createFolder(window.prompt(labels["Name of the Address Book"], ""),
                 appendAddressBook);
    preventDefault(event);
}

function appendAddressBook(name, folder) {
    var owner;
    var result = true;

    if (folder) {
        owner = getSubscribedFolderOwner(folder);
        folder = accessToSubscribedFolder(folder);
    }
    else
        folder = "/" + name;

    if (!owner)
        owner = UserLogin;

    if ($(folder))
        result = false;
    else {
        var contactFolders = $("contactFolders");
        var items = contactFolders.childNodesWithTag("li");
        var li = document.createElement("li");
        li = Element.extend(li);

        // Add the calendar to the proper place
        var i = getListIndexForFolder(items, owner, name);
        if (i != items.length) // User is subscribed to other calendars of the same owner
            contactFolders.insertBefore(li, items[i]);
        else 
            contactFolders.appendChild(li);

        li.setAttribute("id", folder);
        li.setAttribute("owner", owner);
        li.addClassName("local");
        li.appendChild(document.createTextNode(name
                                               .replace("&lt;", "<", "g")
                                               .replace("&gt;", ">", "g")));
        setEventsOnAddressBook(li);
        updateAddressBooksMenus();
        configureDroppables();
    }

    return result;
}

function newUserFolderCallback(folderData) {
    var folder = $(folderData["folder"]);
    if (!folder)
        appendAddressBook(folderData["folderName"], folderData["folder"]);
}

function onAddressBookAdd(event) {
    openUserFolderSelector(newUserFolderCallback, "contact");

    preventDefault(event);
}

function onFolderUnsubscribeCB(folderId) {
    var node = $(folderId);
    node.parentNode.removeChild(node);
    var personal = $("/personal");
    personal.selectElement();
    onFolderSelectionChange();
}

function onAddressBookImport(event) {
    var node = $("contactFolders").getSelectedNodes().first();
    var folderId = node.getAttribute("id");

    var url = ApplicationBaseURL + folderId + "/import";
    $("uploadForm").action = url;
    $("uploadCancel").onclick = hideContactsImport;
    $("contactsFile").value = "";

    var cellPosition = node.cumulativeOffset();
    var cellDimensions = node.getDimensions();
    var left = cellDimensions['width'] - 20;
    var top = cellPosition[1];

    var div = $("uploadDialog");
    var res = $("uploadResults");
    div.style.top = top + "px";
    res.style.top = top + "px";
    div.style.left = left + "px";
    res.style.left = left + "px";
    div.style.display = "block";
}
function hideContactsImport () {
    $("uploadDialog").style.display = "none";
}
function hideImportResults () {
    $("uploadResults").style.display = "none";
}
function validateUploadForm () {
    rc = false;
    if ($("contactsFile").value.length)
      rc = true;
    return rc;
}
function uploadCompleted (response) {
    response = response.replace (/<pre>/, "");
    response = response.replace (/<\/pre>/, "");
    data = response.evalJSON (true);

    var div = $("uploadResults");
    $("uploadOK").onclick = hideImportResults;
    $("uploadResultsContent").update (data.message);

    if (data.imported > 0)
      refreshCurrentFolder ();

    hideContactsImport ();
    $("uploadResults").style.display = "block";
}

function onAddressBookRemove(event) {
    var selector = $("contactFolders");
    var nodes = selector.getSelectedNodes();
    if (nodes.length > 0) {
        var node = $(nodes[0]);
        node.deselect();
        var owner = node.getAttribute("owner");
        if (owner == "nobody") {
            var label = labels["You cannot remove nor unsubscribe from a public addressbook."];
            window.alert(label);
        }
        else if (owner == UserLogin) {
            var folderIdElements = node.getAttribute("id").split(":");
            var abId = folderIdElements[0].substr(1);
            deletePersonalAddressBook(abId);
            var personal = $("/personal");
            personal.selectElement();
            onFolderSelectionChange();
        }
        else {
            var folderId = node.getAttribute("id");
            unsubscribeFromFolder(folderId, owner, onFolderUnsubscribeCB, folderId);
        }
    }

    preventDefault(event);
}

function deletePersonalAddressBook(folderId) {
    if (folderId == "personal") {
        var label = labels["You cannot remove nor unsubscribe from your personal addressbook."];
        window.alert(label);
    }
    else {
        var label
            = labels["Are you sure you want to delete the selected address book?"];
        if (window.confirm(label)) {
            if (document.deletePersonalABAjaxRequest) {
                document.deletePersonalABAjaxRequest.aborted = true;
                document.deletePersonalABAjaxRequest.abort();
            }
            var url = ApplicationBaseURL + folderId + "/delete";
            document.deletePersonalABAjaxRequest
                = triggerAjaxRequest(url, deletePersonalAddressBookCallback,
                                     folderId);
        }
    }
}

function deletePersonalAddressBookCallback(http) {
    if (http.readyState == 4) {
        if (isHttpStatus204(http.status)) {
            var ul = $("contactFolders");
	
            var children = ul.childNodesWithTag("li");
            var i = 0;
            var done = false;
            while (!done && i < children.length) {
                var currentFolderId = children[i].getAttribute("id").substr(1);
                if (currentFolderId == http.callbackData) {
                    ul.removeChild(children[i]);
                    done = true;
                }
                else
                    i++;
            }
        }
        document.deletePersonalABAjaxRequest = null;
    }
    else
        log ("ajax problem 5: " + http.status);
}

function configureDragHandles() {
    var handle = $("dragHandle");
    if (handle) {
        handle.addInterface(SOGoDragHandlesInterface);
        handle.leftBlock = $("contactFoldersList");
        handle.rightBlock = $("rightPanel");
        handle.leftMargin = 100;
    }

    handle = $("rightDragHandle");
    if (handle) {
        handle.addInterface(SOGoDragHandlesInterface);
        handle.upperBlock = $("contactsListContent");
        handle.lowerBlock = $("contactView");
    }
}

function lookupDeniedFolders() {
    var list = $("contactFolders").childNodesWithTag("li");
    for (var i = 0; i < list.length; i++) {
        var folderID = list[i].getAttribute("id");
        var url = URLForFolderID(folderID) + "/canAccessContent";
        triggerAjaxRequest(url, deniedFoldersLookupCallback, folderID);
    }
}

function deniedFoldersLookupCallback(http) {
    if (http.readyState == 4) {
        var denied = ! isHttpStatus204(http.status);
        var entry = $(http.callbackData);
        if (denied)
            entry.addClassName("denied");
        else
            entry.removeClassName("denied");
    }
}

function configureAbToolbar() {
    var toolbar = $("abToolbar");
    if (toolbar) {
        var links = toolbar.childNodesWithTag("a");
        $(links[0]).observe("click", onAddressBookNew);
        $(links[1]).observe("click", onAddressBookAdd);
        $(links[2]).observe("click", onAddressBookRemove);
    }
}

function configureAddressBooks() {
    var contactFolders = $("contactFolders");
    if (contactFolders) {
        contactFolders.observe("mousedown", listRowMouseDownHandler);
        contactFolders.observe("click", onFolderSelectionChange);
        contactFolders.attachMenu("contactFoldersMenu");
        var lis = contactFolders.childNodesWithTag("li");
        for (var i = 0; i < lis.length; i++)
            setEventsOnAddressBook(lis[i]);
    
        lookupDeniedFolders();
        configureDroppables();

        var personalFolder = $("/personal");
        personalFolder.selectElement();
        openContactsFolder("/personal");
    }
}

function onAddressBookMenuPrepareVisibility() {
    var selectedFolder = $("contactFolders").getSelectedNodes()[0];
    if (selectedFolder) {
        var selectedFolderId = selectedFolder.readAttribute("id");
        $(this).select("li").each(function(menuEntry) {
                if (menuEntry.readAttribute("folderId") == selectedFolderId)
                    menuEntry.addClassName("disabled");
                else
                    menuEntry.removeClassName("disabled");
            });
    }

    return true;
}

function updateAddressBooksMenus() {
    var contactFoldersList = $("contactFolders");
    if (contactFoldersList) {
        var pageContent = $("pageContent");
        var contactFolders = contactFoldersList.select("li");
        var contactActions = new Hash({ move: onContactMenuMove,
                                        copy: onContactMenuCopy });
        var actions = contactActions.keys();
        for (var j = 0; j < actions.size(); j++) {
            var key = actions[j];
            var callbacks = new Array();
            var menuId = key + "ContactMenu";
            var menuDIV = $(menuId);
            if (menuDIV)
                menuDIV.parentNode.removeChild(menuDIV);
	
            menuDIV = document.createElement("div");
            pageContent.appendChild(menuDIV);
	
            var menu = document.createElement("ul");
            menuDIV.appendChild(menu);
	
            $(menuDIV).addClassName("menu");
            menuDIV.setAttribute("id", menuId);
	
            var submenuIds = new Array();
            for (var i = 0; i < contactFolders.length; i++) {
                if (contactFolders[i].hasClassName("local")) {
                    var menuEntry = new Element("li",
                                                { folderId: contactFolders[i].readAttribute("id"),
                                                  owner: contactFolders[i].readAttribute("owner") }
                                                ).update(contactFolders[i].innerHTML);
                    menu.appendChild(menuEntry);
                    callbacks.push(contactActions.get(key));
                }
            }
            menuDIV.prepareVisibility = onAddressBookMenuPrepareVisibility;
            initMenu(menuDIV, callbacks);
        }
    }
}
  
function setEventsOnAddressBook(folder) {
    var node = $(folder);

    node.observe("mousedown", listRowMouseDownHandler);
    node.observe("click", onRowClick);
    node.observe("dblclick", onAddressBookModify);
}

function onAddressBookModify(event) {
    var folders = $("contactFolders");
    var selected = folders.getSelectedNodes()[0];

    if (UserLogin == selected.getAttribute("owner")) {
        var currentName = selected.innerHTML;
        var newName = window.prompt(labels["Address Book Name"],
                                    currentName);
        if (newName && newName.length > 0
            && newName != currentName) {
            var url = (URLForFolderID(selected.getAttribute("id"))
                       + "/renameFolder?name=" + escape(newName.utf8encode()));
            triggerAjaxRequest(url, folderRenameCallback,
                               {node: selected, name: newName});
        }
    } else
        window.alert(clabels["Unable to rename that folder!"]);
}

function folderRenameCallback(http) {
    if (http.readyState == 4) {
        if (isHttpStatus204(http.status)) {
            var dict = http.callbackData;
            dict["node"].innerHTML = dict["name"];
        }
    }
}

function onMenuSharing(event) {
    if ($(this).hasClassName("disabled"))
        return;

    var folders = $("contactFolders");
    var selected = folders.getSelectedNodes()[0];
    var owner = selected.getAttribute("owner");
    if (owner == "nobody")
        window.alert(clabels["The user rights cannot be"
                             + " edited for this object!"]);
    else {
        var title = this.innerHTML;
        var url = URLForFolderID(selected.getAttribute("id"));

        openAclWindow(url + "/acls", title);
    }
}

function onAddressBooksMenuPrepareVisibility() {
    var folders = $("contactFolders");
    var selected = folders.getSelectedNodes();

    if (selected.length > 0) {
        var folderOwner = selected[0].getAttribute("owner");

        var menu = $("contactFoldersMenu").down("ul");;
        var listElements = menu.childNodesWithTag("li");
        var modifyOption = $(listElements[0]);
        var removeOption = $(listElements[5]);
        var sharingOption = $(listElements[listElements.length - 1]);

        // Disable the "Sharing" and "Modify" options when address book
        // is not owned by user
        if (folderOwner == UserLogin || IsSuperUser) {
            modifyOption.removeClassName("disabled");
            sharingOption.removeClassName("disabled");
        }
        else {
            modifyOption.addClassName("disabled");
            sharingOption.addClassName("disabled");
        }

        // Disable the "remove" option when address book is public
        if (folderOwner == "nobody")
            removeOption.addClassName("disabled");
        else
            removeOption.removeClassName("disabled");

        return true;
    }

    return false;
}

function onContactMenuPrepareVisibility() {
    var contactRows = document.menuTarget;
    var selectedFolder = $("contactFolders").getSelectedNodes().first();
    var options = { write: false,
                    aim: false };

    var elements = $(this).down("ul").childElements();
    var writeOption = elements[2];
    var aimOption = elements[3];
    var deleteOption = elements[5];
    var moveOption = elements[7];

    $A(contactRows).each(function(contactRow) {
            var cells = contactRow.getElementsByTagName('td');
            var emailCell = cells[1];
            options.write |= (emailCell.firstChild != null);
            var aimCell = cells[2];
            options.aim |= (aimCell.firstChild != null);
        });

    if (options.write)
        writeOption.removeClassName("disabled");
    else
        writeOption.addClassName("disabled");
    if (options.aim)
        aimOption.removeClassName("disabled");
    else
        aimOption.addClassName("disabled");

    if ($(selectedFolder).hasClassName("remote")) {
        // Remote address books are always read-only
        deleteOption.addClassName("disabled");
        moveOption.addClassName("disabled");
    }
    else {
        deleteOption.removeClassName("disabled");
        moveOption.removeClassName("disabled");
    }
	
    return true;
}

function getMenus() {
    var menus = {};
    menus["contactFoldersMenu"] = new Array(onAddressBookModify, "-", newContact,
                                            null, "-", onAddressBookImport, 
                                            onAddressBookRemove, "-",
                                            onMenuSharing);
    menus["contactMenu"] = new Array(onMenuEditContact, "-",
                                     onMenuWriteToContact, onMenuAIMContact,
                                     "-", onMenuDeleteContact, "-",
                                     "moveContactMenu", "copyContactMenu", 
                                     onMenuExportContact);
    menus["searchMenu"] = new Array(setSearchCriteria);
   
    var contactFoldersMenu = $("contactFoldersMenu");
    if (contactFoldersMenu)
        contactFoldersMenu.prepareVisibility = onAddressBooksMenuPrepareVisibility;
    var contactMenu = $("contactMenu");
    if (contactMenu)
        contactMenu.prepareVisibility = onContactMenuPrepareVisibility;
   
    return menus;
}

function configureSelectionButtons() {
    var container = $("contactSelectionButtons");
    if (container) {
        var buttons = container.select("input");
        for (var i = 0; i < buttons.length; i++)
            $(buttons[i]).observe("click", onConfirmContactSelection);
    }
}

function onWindowResize(event) {
    var handle = $("dragHandle");
    if (handle)
        handle.adjust();
    handle = $("rightDragHandle");
    if (handle)
        handle.adjust();
}

function onDocumentKeydown(event) {
    var target = Event.element(event);
    if (target.tagName != "INPUT")
        if (event.keyCode == Event.KEY_DELETE ||
            event.keyCode == Event.KEY_BACKSPACE && isMac()) {
            onToolbarDeleteSelectedContacts();
            Event.stop(event);
        }
        else if (event.keyCode == Event.KEY_DOWN ||
                 event.keyCode == Event.KEY_UP) {
            if (Contact.currentContact) {
                var row = $(Contact.currentContact);
                var nextRow;
                if (event.keyCode == Event.KEY_DOWN)
                    nextRow = row.next("tr");
                else
                    nextRow = row.previous("tr");
                if (nextRow) {
                    row.up().deselectAll();
					
                    // Adjust the scollbar
                    var viewPort = $("contactsListContent");
                    var divDimensions = viewPort.getDimensions();
                    var rowScrollOffset = nextRow.cumulativeScrollOffset();
                    var rowPosition = nextRow.positionedOffset();
                    var divBottom = divDimensions.height + rowScrollOffset.top;
                    var rowBottom = rowPosition.top + nextRow.getHeight();

                    if (divBottom < rowBottom)
                        viewPort.scrollTop += rowBottom - divBottom;
                    else if (rowScrollOffset.top > rowPosition.top)
                        viewPort.scrollTop -= rowScrollOffset.top - rowPosition.top;
					
                    // Select and load the next message
                    nextRow.selectElement();
                    loadContact(nextRow.readAttribute("id"));
                }
                Event.stop(event);
            }
        }
}

function fixSearchFieldPosition () {
    var panel = $("filterPanel");
    if (panel) {
        panel.style.position = "relative";
        panel.style.top = "3px";
    }
}

function initContacts(event) {
    if ($(document.body).hasClassName("popup")) {
        configureSelectionButtons();
        fixSearchFieldPosition ();
    }
    else if (Prototype.Browser.Gecko)
        Event.observe(document, "keypress", onDocumentKeydown); // for FF2
    else
        Event.observe(document, "keydown", onDocumentKeydown);
    configureAbToolbar();
    configureAddressBooks();
    updateAddressBooksMenus();

    var table = $("contactsList");
    if (table) {
        // Initialize contacts table
        table.multiselect = true;
        table.observe("mousedown", onContactSelectionChange);
        configureSortableTableHeaders(table);
        TableKit.Resizable.init(table, {'trueResize' : true, 'keepWidth' : true});
    }
	
    onWindowResize.defer();
    Event.observe(window, "resize", onWindowResize);
	
    // Default sort options
    sorting["attribute"] = "c_cn";
    sorting["ascending"] = true;
}

function configureDraggables() {
    var mainElement = $("dragDropVisual");
    Draggables.empty ();
    
    if (mainElement == null) {
        mainElement = new Element ("div", {id: "dragDropVisual"});
        document.body.appendChild(mainElement);
        mainElement.absolutize ();
    }
    mainElement.hide();
    
    new Draggable ("dragDropVisual", 
                   { handle: "contactsList", 
                           onStart: startDragging,
                           onEnd: stopDragging,
                           onDrag: whileDragging,
                           scroll: window
                           }); 
}

function configureDroppables() {
    var drops = $$("ul#contactFolders li");
  
    Droppables.empty ();
    drops.each (function (drop) {
            if (!drop.hasClassName ("remote"))
                Droppables.add (drop.id, 
                                { hoverclass: "genericHoverClass",
                                        onDrop: dropAction
                                        });
        });   
}

function currentFolderIsRemote () {
    rc = false;
    var selectedFolders = $("contactFolders").getSelectedNodes();
    if (selectedFolders.length > 0) {
        var fromObject = $(selectedFolders[0]);
        rc = fromObject.hasClassName ("remote");
    }
    return rc;
}

function startDragging (itm, e) {
    var target = Event.element(e);
    if (target.up().up().tagName != "TBODY")
        return false;
    
    var handle = $("dragDropVisual");
    var contacts = $('contactsList').getSelectedRowsId();
    var count = contacts.length;
    
    handle.show();
    handle.update (count);
    if (e.shiftKey || currentFolderIsRemote ())
      handle.addClassName ("copy");
}

function whileDragging (itm, e) {
    var handle = $("dragDropVisual");
    if (e.shiftKey || currentFolderIsRemote ())
        handle.addClassName ("copy");
    else if (handle.hasClassName ("copy"))
        handle.removeClassName ("copy");
}

function stopDragging () {
    var handle = $("dragDropVisual");
    handle.hide();
    if (handle.hasClassName ("copy"))
        handle.removeClassName ("copy");
}

function dropAction (dropped, zone, e) {
    var action = "move"; 
    if ($("dragDropVisual").hasClassName ("copy"))
        action = "copy";
    else
        $('contactView').update();
    dropSelectedContacts (action, zone.id.substr (1));
}

function dropSelectedContacts (action, toId) {
    var selectedFolders = $("contactFolders").getSelectedNodes();
    if (selectedFolders.length > 0) {
        var contactIds = $('contactsList').getSelectedRowsId();
        for (var i = 0; i < contactIds.length; i++) {
            if (contactIds[i].endsWith ("vlf")) {
                alert (labels["Lists can't be moved or copied."]);
                return false;
            }
        }
        var fromId = $(selectedFolders[0]).id;
        if (!currentFolderIsRemote () || action != "move") {
            var url = ApplicationBaseURL + fromId + "/" + action 
              + "?folder=" + toId + "&uid="
              + contactIds.join("&uid=");

            triggerAjaxRequest(url, actionContactCallback, fromId);
        }
    }
}


document.observe("dom:loaded", initContacts);