
/* Merged Plone Javascript file
 * This file is dynamically assembled from separate parts.
 * Some of these parts have 3rd party licenses or copyright information attached
 * Such information is valid for that section,
 * not for the entire composite file
 * originating files are separated by ----- filename.js -----
 */

/* ----- register_function.js ----- */
/* Essential javascripts, used a lot. 
 * These should be placed inline
 * We have to be certain they are loaded before anything that uses them 
 */

// check for ie5 mac
var bugRiddenCrashPronePieceOfJunk = (
    navigator.userAgent.indexOf('MSIE 5') != -1
    &&
    navigator.userAgent.indexOf('Mac') != -1
)

// check for W3CDOM compatibility
var W3CDOM = (!bugRiddenCrashPronePieceOfJunk &&
               document.getElementsByTagName &&
               document.createElement);

// cross browser function for registering event handlers
function registerEventListener(elem, event, func) {
    if (elem.addEventListener) {
        elem.addEventListener(event, func, false);
        return true;
    } else if (elem.attachEvent) {
        var result = elem.attachEvent("on"+event, func);
        return result;
    }
    // maybe we could implement something with an array
    return false;
}

// cross browser function for unregistering event handlers
function unRegisterEventListener(elem, event, func) {
    if (elem.removeEventListener) {
        elem.removeEventListener(event, func, false);
        return true;
    } else if (elem.detachEvent) {
        var result = elem.detachEvent("on"+event, func);
        return result;
    }
    // maybe we could implement something with an array
    return false;
}

function registerPloneFunction(func) {
    // registers a function to fire onload.
    registerEventListener(window, "load", func);
}

function unRegisterPloneFunction(func) {
    // unregisters a function so it does not fire onload.
    unRegisterEventListener(window, "load", func);
}

function getContentArea() {
    // returns our content area element
    if (W3CDOM) {
        var node = document.getElementById('region-content');
        if (!node) {
            node = document.getElementById('content');
        }
        return node;
    }
} 


/* ----- cssQuery.js ----- */
/*
	cssQuery, version 2.0.2 (2005-08-19)
	Copyright: 2004-2005, Dean Edwards (http://dean.edwards.name/)
	License: http://creativecommons.org/licenses/LGPL/2.1/
*/
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/* ----- plone_javascript_variables.js ----- */

// Global Plone variables that need to be accessible to the Javascripts
var portal_url = 'http://www.birds.cornell.edu/obf';
var form_modified_message = 'Your form has not been saved. All changes you have made will be lost.';
var form_resubmit_message = 'Your already clicked the submit button. Do you really want to submit this form again?';


/* ----- nodeutilities.js ----- */

function wrapNode(node, wrappertype, wrapperclass){
    /* utility function to wrap a node in an arbitrary element of type "wrappertype"
     * with a class of "wrapperclass" */
    var wrapper = document.createElement(wrappertype)
    wrapper.className = wrapperclass;
    var innerNode = node.parentNode.replaceChild(wrapper,node);
    wrapper.appendChild(innerNode);
};

function nodeContained(innernode, outernode){
    // check if innernode is contained in outernode
    var node = innernode.parentNode;
    while (node != document) {
        if (node == outernode) {
            return true; 
        }
        node=node.parentNode;
    }
    return false;
};

function findContainer(node, func) {
    // Starting with the given node, find the nearest containing element
    // for which the given function returns true.

    while (node != null) {
        if (func(node)) {
            return node;
        }
        node = node.parentNode;
    }
    return false;
};

function hasClassName(node, class_name) {
    return new RegExp('\\b'+class_name+'\\b').test(node.className);
};

function addClassName(node, class_name) {
    if (!node.className) {
        node.className = class_name;
    } else if (!hasClassName(node, class_name)) {
        var className = node.className+" "+class_name;
        // cleanup
        node.className = className.split(/\s+/).join(' ');
    }
};

function removeClassName(node, class_name) {
    var className = node.className;
    if (className) {
        // remove
        className = className.replace(new RegExp('\\b'+class_name+'\\b'), '');
        // cleanup
        className = className.replace(/\s+/g, ' ');
        node.className = className.replace(/\s+$/g, '');
    }
};

function replaceClassName(node, old_class, new_class, ignore_missing) {
    if (ignore_missing && !hasClassName(node, old_class)) {
        addClassName(node, new_class);
    } else {
        var className = node.className;
        if (className) {
            // replace
            className = className.replace(new RegExp('\\b'+old_class+'\\b'), new_class);
            // cleanup
            className = className.replace(/\s+/g, ' ');
            node.className = className.replace(/\s+$/g, '');
        }
    }
};

function walkTextNodes(node, func, data) {
    // traverse childnodes and call func when a textnode is found
    if (!node){return false}
    if (node.hasChildNodes) {
        // we can't use for (i in childNodes) here, because the number of
        // childNodes might change (higlightsearchterms)
        for (var i=0;i<node.childNodes.length;i++) {
            walkTextNodes(node.childNodes[i], func, data);
        }
        if (node.nodeType == 3) {
            // this is a text node
            func(node, data);
        }
    }
};

/* These are two functions, because getInnerTextFast doesn't always return the
 * the same results, as it depends on the implementation of node.innerText of
 * the browser. getInnerTextCompatible will always return the same values, but
 * is a bit slower. The difference is just in the whitespace, so if this
 * doesn't matter, you should always use getInnerTextFast.
 */

function getInnerTextCompatible(node) {
    var result = new Array();
    walkTextNodes(node,
                  function(n, d){d.push(n.nodeValue)},
                  result);
    return result.join("");
};

function getInnerTextFast(node) {
    if (node.innerText) {
        return node.innerText;
    } else {
        return getInnerTextCompatible(node);
    }
};

/* This function reorder nodes in the DOM.
 * fetch_func - the function which returns the value for comparison
 * cmp_func - the compare function, if not provided then the string of the
 * value returned by fetch_func is used.
 */
function sortNodes(nodes, fetch_func, cmp_func) {
    // terminate if we hit a non-compliant DOM implementation
    if (!W3CDOM){return false};

    // wrapper for sorting
    var SortNodeWrapper = function(node) {
        this.value = fetch_func(node);
        this.cloned_node = node.cloneNode(true);
        this.toString = function() {
            if (this.value.toString) {
                return this.value.toString();
            } else {
                return this.value;
            }
        }
    }

    // wrap nodes
    var items = new Array();
    for (var i=0; i<nodes.length; i++) {
        items.push(new SortNodeWrapper(nodes[i]));
    }

    //sort
    if (cmp_func) {
        items.sort(cmp_func);
    } else {
        items.sort();
    }

    // reorder nodes
    for (var i=0; i<items.length; i++) {
        var dest = nodes[i];
        dest.parentNode.replaceChild(items[i].cloned_node, dest);
    }
};


/* ----- cookie_functions.js ----- */
function createCookie(name,value,days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    } else {
        expires = "";
    }
    document.cookie = name+"="+escape(value)+expires+"; path=/;";
};

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') {
            c = c.substring(1,c.length);
        }
        if (c.indexOf(nameEQ) == 0) {
            return unescape(c.substring(nameEQ.length,c.length));
        }
    }
    return null;
};


/* ----- fullscreenmode.js ----- */
function toggleFullScreenMode() {
    var body = cssQuery('body')[0];
    if(document.getElementById('icon-full_screen')) {
    var fsicon = document.getElementById('icon-full_screen'); }

    if (hasClassName(body, 'fullscreen')) {
        // unset cookie
        removeClassName(body, 'fullscreen');
        createCookie('fullscreenMode', '');
        if(fsicon) { fsicon.src = 'fullscreenexpand_icon.gif'; }
    } else {
        // set cookie
        addClassName(body, 'fullscreen');
        createCookie('fullscreenMode', '1');
        if(fsicon) { fsicon.src = 'fullscreencollapse_icon.gif'; }
    }
};

function fullscreenModeLoad() {
    if(document.getElementById('icon-full_screen')) {
    var fsicon = document.getElementById('icon-full_screen'); }
    // based on cookie
    if (readCookie('fullscreenMode') == '1') {
        var body = cssQuery('body')[0];
        addClassName(body, 'fullscreen');
        if(fsicon) { fsicon.src = 'fullscreencollapse_icon.gif'; }
    }
};
registerPloneFunction(fullscreenModeLoad)


/* ----- select_all.js ----- */
// Functions for selecting all checkboxes in folder_contents/search_form view
function selectAll(id, formName) {
    // Get the elements. if formName is provided, get the elements inside the form
    if (formName==null) {
        checkboxes = document.getElementsByName(id)
        for (i = 0; i < checkboxes.length; i++){
            checkboxes[i].checked = true ;
            }
    } else {
        for (i=0; i<document.forms[formName].elements.length;i++){
            if (document.forms[formName].elements[i].name==id){
                document.forms[formName].elements[i].checked=true; 
                }
            }
        }
    }
function deselectAll(id, formName) {
    if (formName==null) {
        checkboxes = document.getElementsByName(id)
        for (i = 0; i < checkboxes.length; i++){
            checkboxes[i].checked = false ;}
    } else {
        for (i=0; i<document.forms[formName].elements.length;i++){
            if (document.forms[formName].elements[i].name==id){
                document.forms[formName].elements[i].checked=false;
                }
            }
        }
    }
function toggleSelect(selectbutton, id, initialState, formName) {
    /* required selectbutton: you can pass any object that will function as a toggle
     * optional id: id of the the group of checkboxes that needs to be toggled (default=ids:list
     * optional initialState: initial state of the group. (default=false)
     * e.g. folder_contents is false, search_form=true because the item boxes
     * are checked initially.
     * optional formName: name of the form in which the boxes reside, use this if there are more
     * forms on the page with boxes with the same name
     */
    id=id || 'ids:list'  // defaults to ids:list, this is the most common usage

    if (selectbutton.isSelected==null){
        initialState=initialState || false;
        selectbutton.isSelected=initialState;
        }
    /* create and use a property on the button itself so you don't have to 
     * use a global variable and we can have as much groups on a page as we like.
     */
    if (selectbutton.isSelected == false) {
        selectbutton.setAttribute('src', portal_url + '/select_none_icon.gif');
        selectbutton.isSelected=true;
        return selectAll(id, formName);
    } else {
        selectbutton.setAttribute('src',portal_url + '/select_all_icon.gif');
        selectbutton.isSelected=false;
        return deselectAll(id, formName);
        }
    } 

/* ----- dropdown.js ----- */
/*
 * This is the code for the dropdown menus. It uses the following markup:
 *
 * <dl class="actionMenu" id="uniqueIdForThisMenu">
 *   <dt class="actionMenuHeader">
 *     <!-- The following a-tag needs to be clicked to dropdown the menu -->
 *     <a href="some_destination">A Title</a>
 *   </dt>
 *   <dd class="actionMenuContent">
 *     <!-- Here can be any content you want -->
 *   </dd>
 * </dl>
 *
 * When the menu is toggled, then the dl with the class actionMenu will get an
 * additional class which switches between 'activated' and 'deactivated'.
 * You can use this to style it accordingly, for example:
 *
 * .actionMenu.activated {
 *   display: block;
 * }
 *
 * .actionMenu.deactivated {
 *   display: none;
 * }
 *
 * When you click somewhere else than the menu, then all open menus will be
 * deactivated. When you move your mouse over the a-tag of another menu, then
 * that one will be activated and all others deactivated. When you click on a
 * link inside the actionMenuContent element, then the menu will be closed and
 * the link followed.
 *
 * This file uses functions from register_function.js, cssQuery.js and
 * nodeutils.js.
 *
 */

function isActionMenu(node) {
    if (hasClassName(node, 'actionMenu')) {
        return true;
    }
    return false;
};

function hideAllMenus() {
    var menus = cssQuery('dl.actionMenu');
    for (var i=0; i < menus.length; i++) {
        replaceClassName(menus[i], 'activated', 'deactivated', true);
    }
};

function toggleMenuHandler(event) {
    if (!event) var event = window.event; // IE compatibility

    // terminate if we hit a non-compliant DOM implementation
    // returning true, so the link is still followed
    if (!W3CDOM){return true;}

    var container = findContainer(this, isActionMenu);
    if (!container) {
        return true;
    }

    // check if the menu is visible
    if (hasClassName(container, 'activated')) {
        // it's visible - hide it
        replaceClassName(container, 'activated', 'deactivated', true);
    } else {
        // it's invisible - make it visible
        replaceClassName(container, 'deactivated', 'activated', true);
    }

    return false;
};

function hideMenusHandler(event) {
    if (!event) var event = window.event; // IE compatibility

    hideAllMenus();

    // we want to follow this link
    return true;
};

function actionMenuDocumentMouseDown(event) {
    if (!event) var event = window.event; // IE compatibility

    if (event.target)
        targ = event.target;
    else if (event.srcElement)
        targ = event.srcElement;

    var container = findContainer(targ, isActionMenu);
    if (container) {
        // targ is part of the menu, so just return and do the default
        return true;
    }

    hideAllMenus();

    return true;
};

function actionMenuMouseOver(event) {
    if (!event) var event = window.event; // IE compatibility

    if (!this.tagName && (this.tagName == 'A' || this.tagName == 'a')) {
        return true;
    }

    var container = findContainer(this, isActionMenu);
    if (!container) {
        return true;
    }
    var menu_id = container.id;

    var switch_menu = false;
    // hide all menus
    var menus = cssQuery('dl.actionMenu');
    for (var i=0; i < menus.length; i++) {
        var menu = menus[i]
        // check if the menu is visible
        if (hasClassName(menu, 'activated')) {
            switch_menu = true;
        }
        // turn off menu when it's not the current one
        if (menu.id != menu_id) {
            replaceClassName(menu, 'activated', 'deactivated', true);
        }
    }

    if (switch_menu) {
        var menu = cssQuery('#'+menu_id)[0];
        if (menu) {
            replaceClassName(menu, 'deactivated', 'activated', true);
        }
    }

    return true;
};

function initializeMenus() {
    // terminate if we hit a non-compliant DOM implementation
    if (!W3CDOM) {return false;}

    document.onmousedown = actionMenuDocumentMouseDown;

    hideAllMenus();

    // add toggle function to header links
    var menu_headers = cssQuery('dl.actionMenu > dt.actionMenuHeader > a');
    for (var i=0; i < menu_headers.length; i++) {
        var menu_header = menu_headers[i];

        menu_header.onclick = toggleMenuHandler;
        menu_header.onmouseover = actionMenuMouseOver;
    }

    // add hide function to all links in the dropdown, so the dropdown closes
    // when any link is clicked
    var menu_contents = cssQuery('dl.actionMenu > dd.actionMenuContent');
    for (var i=0; i < menu_contents.length; i++) {
        menu_contents[i].onclick = hideMenusHandler;
    }

    // uncomment to enable sorting of elements
    //var nodes = cssQuery('#objectMenu > dd.actionMenuContent li');
    //sortNodes(nodes, getInnerTextFast);
};

registerPloneFunction(initializeMenus);


/* ----- first_input_focus.js ----- */
// Focus on error 
function setFocus(){
    // terminate if we hit a non-compliant DOM implementation
    if (!W3CDOM){return false};

    var xre = new RegExp(/\berror\b/);
    // Search only forms to avoid spending time on regular text
    for (var f = 0; (formnode = document.getElementsByTagName('form').item(f)); f++){
        // Search for errors first, focus on first error if found
        for (var i = 0; (node = formnode.getElementsByTagName('div').item(i)); i++) {
            if (xre.exec(node.className)){
                for (var j = 0; (inputnode = node.getElementsByTagName('input').item(j)); j++) {
                    try {
                        if (inputnode.focus) { // check availability first
                            inputnode.focus();
                            return;
                        }
                    } catch(e) {
                        // try next one, this can happen with a hidden or
                        // invisible input field
                    }
                }
            }
        }
    }
}
registerPloneFunction(setFocus)


/* ----- folder_contents_filter.js ----- */
// Actions used in the folder_contents view
function submitFolderAction(folderAction) {
    document.folderContentsForm.action = document.folderContentsForm.action+'/'+folderAction;
    document.folderContentsForm.submit();
}

function submitFilterAction() {
    document.folderContentsForm.action = document.folderContentsForm.action+'/folder_contents';
    filter_selection=document.getElementById('filter_selection');
    for (var i =0; i < filter_selection.length; i++){
        if (filter_selection.options[i].selected) {
            if (filter_selection.options[i].value=='#') {
                document.folderContentsForm.filter_state.value='clear_view_filter';
            }
            else {
                document.folderContentsForm.filter_state.value='set_view_filter';
            }
        }
    }
    document.folderContentsForm.submit();
}



/* ----- folder_contents_hideAddItems.js ----- */
// function to hide the traditional add items pull down menu.

function hideTraditionalAddItemPullDown() {
    // Get the old style Add Item pulldown. We already have
    // such a menu. This is only for system that don't have javascript
    // so we can savely remove it.
    pullDown = document.getElementById('traditional-add-item-pulldown');
    if (pullDown) { 
        pullDown.style.display='none';
    }
}

registerPloneFunction(hideTraditionalAddItemPullDown)
