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  1. #1
    New to the CF scene
    Join Date
    Aug 2008
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    javascript menu - not collapsing at start

    i can't seem to figure out how to make this menu start out collapsed. i played around with almost every variable that had the words collapse and expand to no avail. can anyone help me out? currently, when i go into the page, the menu starts out expanded and im trying to make it start out collapsed. heres the code:

    function SDMenu(id) {
    if (!document.getElementById || !document.getElementsByTagName)
    return false;
    this.menu = document.getElementById(id);
    this.submenus = this.menu.getElementsByTagName("div");
    this.remember = true;
    this.speed = 2;
    this.markCurrent = true;
    this.oneSmOnly = false;
    }
    SDMenu.prototype.init = function() {
    var mainInstance = this;
    for (var i = 0; i < this.submenus.length; i++)
    this.submenus[i].getElementsByTagName("span")[0].onclick = function() {
    mainInstance.toggleMenu(this.parentNode);
    };
    if (this.markCurrent) {
    var links = this.menu.getElementsByTagName("a");
    for (var i = 0; i < links.length; i++)
    if (links[i].href == document.location.href) {
    links[i].className = "current";
    break;
    }
    }
    if (this.remember) {
    var regex = new RegExp("sdmenu_" + encodeURIComponent(this.menu.id) + "=([01]+)");
    var match = regex.exec(document.cookie);
    if (match) {
    var states = match[1].split("");
    for (var i = 0; i < states.length; i++)
    this.submenus[i].className = (states[i] == 0 ? "collapsed" : "");
    }
    }
    };
    SDMenu.prototype.toggleMenu = function(submenu) {
    if (submenu.className == "collapsed")
    this.expandMenu(submenu);
    else
    this.collapseMenu(submenu);
    };
    SDMenu.prototype.expandMenu = function(submenu) {
    var fullHeight = submenu.getElementsByTagName("span")[0].offsetHeight;
    var links = submenu.getElementsByTagName("a");
    for (var i = 0; i < links.length; i++)
    fullHeight += links[i].offsetHeight;
    var moveBy = Math.round(this.speed * links.length);

    var mainInstance = this;
    var intId = setInterval(function() {
    var curHeight = submenu.offsetHeight;
    var newHeight = curHeight + moveBy;
    if (newHeight < fullHeight)
    submenu.style.height = newHeight + "px";
    else {
    clearInterval(intId);
    submenu.style.height = "";
    submenu.className = "";
    mainInstance.memorize();
    }
    }, 30);
    this.collapseOthers(submenu);
    };
    SDMenu.prototype.collapseMenu = function(submenu) {
    var minHeight = submenu.getElementsByTagName("span")[0].offsetHeight;
    var moveBy = Math.round(this.speed * submenu.getElementsByTagName("a").length);
    var mainInstance = this;
    var intId = setInterval(function() {
    var curHeight = submenu.offsetHeight;
    var newHeight = curHeight - moveBy;
    if (newHeight > minHeight)
    submenu.style.height = newHeight + "px";
    else {
    clearInterval(intId);
    submenu.style.height = "";
    submenu.className = "collapsed";
    mainInstance.memorize();
    }
    }, 30);
    };
    SDMenu.prototype.collapseOthers = function(submenu) {
    if (this.oneSmOnly) {
    for (var i = 0; i < this.submenus.length; i++)
    if (this.submenus[i] != submenu && this.submenus[i].className != "collapsed")
    this.collapseMenu(this.submenus[i]);
    }
    };
    SDMenu.prototype.expandAll = function() {
    var oldOneSmOnly = this.oneSmOnly;
    this.oneSmOnly = false;
    for (var i = 0; i < this.submenus.length; i++)
    if (this.submenus[i].className == "collapsed")
    this.expandMenu(this.submenus[i]);
    this.oneSmOnly = oldOneSmOnly;
    };
    SDMenu.prototype.collapseAll = function() {
    for (var i = 0; i < this.submenus.length; i++)
    if (this.submenus[i].className != "collapsed")
    this.collapseMenu(this.submenus[i]);
    };
    SDMenu.prototype.memorize = function() {
    if (this.remember) {
    var states = new Array();
    for (var i = 0; i < this.submenus.length; i++)
    states.push(this.submenus[i].className == "collapsed" ? 0 : 1);
    var d = new Date();
    d.setTime(d.getTime() + (30 * 24 * 60 * 60 * 1000));
    document.cookie = "sdmenu_" + encodeURIComponent(this.menu.id) + "=" + states.join("") + "; expires=" + d.toGMTString() + "; path=/";
    }
    };

  • #2
    New Coder
    Join Date
    Jul 2008
    Location
    New York
    Posts
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    Thanks
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    Thanked 2 Times in 2 Posts

    Arrow

    Try to change line 6:

    this.remember = true;

    -- to --

    this.remember = false;

    This setting when set to true will set a cookie that 'remembers' the state of the menu.

    If that doesn't work try placing the following in your SDMenu.prototype.init function

    SDMenu.prototype.collapseAll();

    That should make it so the menu will start collapsed

    Trevor


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