/*
 * utils.js
 *
 * Version: $Revision: 3705 $
 *
 * Date: $Date: 2009-04-11 17:02:24 +0000 (Sat, 11 Apr 2009) $
 *
 * Copyright (c) 2004, Hewlett-Packard Company and Massachusetts
 * Institute of Technology.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * - Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the Hewlett-Packard Company nor the name of the
 * Massachusetts Institute of Technology nor the names of their
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

/*
 * Copyright (c) 2002-2010, AGREX Inc.  All rights reserved.
 */

/*
 * Utility Javascript methods for DSpace
 */

// Popup window - here so it can be referred to by several methods
var popupWindow;

// =========================================================
//  Methods for e-person popup window
// =========================================================

// Add to list of e-people on this page -- invoked by eperson popup window
function addEPerson(id, email, name)
{
    var newplace = window.document.epersongroup.eperson_id.options.length;

    if (newplace > 0 && window.document.epersongroup.eperson_id.options[0].value == "")
    {
        newplace = 0;
    }

    // First we check to see if e-person is already there
    for (var i = 0; i < window.document.epersongroup.eperson_id.options.length; i++)
    {
        if (window.document.epersongroup.eperson_id.options[i].value == id)
        {
            newplace = -1;
        }
    }

    if (newplace > -1)
    {
        window.document.epersongroup.eperson_id.options[newplace] = new Option(name + " (" + email + ")", id);
    }
}

// Add to list of groups on this page -- invoked by eperson popup window
function addGroup(id, name)
{
    var newplace = window.document.epersongroup.group_ids.options.length;

    if (newplace > 0 && window.document.epersongroup.group_ids.options[0].value == "")
    {
        newplace = 0;
    }

    // First we check to see if group is already there
    for (var i = 0; i < window.document.epersongroup.group_ids.options.length; i++)
    {
        // is it in the list already
        if (window.document.epersongroup.group_ids.options[i].value == id)
        {
            newplace = -1;
        }

        // are we trying to add the new group to the new group on an Edit Group page (recursive)
        if (window.document.epersongroup.group_id)
        {
            if (window.document.epersongroup.group_id.value == id)
            {
                newplace = -1;
            }
        }
    }

    if (newplace > -1)
    {
        window.document.epersongroup.group_ids.options[newplace] = new Option(name + " (" + id + ")", id);
    }
}

// This needs to be invoked in the 'onClick' javascript event for buttons
// on pages with a dspace:selecteperson element in them
function finishEPerson()
{
//--------------------------------------------------------------------------------
    if (undefined == window.document.epersongroup.eperson_id) {
        return;
    }
//--------------------------------------------------------------------------------

    selectAll(window.document.epersongroup.eperson_id);

    if (popupWindow != null)
    {
        popupWindow.close();
    }
}

// This needs to be invoked in the 'onClick' javascript event for buttons
// on pages with a dspace:selecteperson element in them
function finishGroups()
{
//--------------------------------------------------------------------------------
    if (undefined == window.document.epersongroup.group_ids) {
        return;
    }
//--------------------------------------------------------------------------------

    selectAll(window.document.epersongroup.group_ids);

    if (popupWindow != null)
    {
        popupWindow.close();
    }
}

// =========================================================
//  Miscellaneous utility methods
// =========================================================

// Open a popup window (or bring to front if already open)
function popup_window(winURL, winName)
{
    var props = 'scrollBars=yes,resizable=yes,toolbar=no,menubar=no,location=no,directories=no,width=640,height=480';
    popupWindow = window.open(winURL, winName, props);
    popupWindow.focus();
}


// Select all options in a <SELECT> list
function selectAll(sourceList)
{
    for(var i = 0; i < sourceList.options.length; i++)
    {
        if ((sourceList.options[i] != null) && (sourceList.options[i].value != ""))
            sourceList.options[i].selected = true;
    }
    return true;
}

// Deletes the selected options from supplied <SELECT> list
function removeSelected(sourceList)
{
    var maxCnt = sourceList.options.length;
    for(var i = maxCnt - 1; i >= 0; i--)
    {
        if ((sourceList.options[i] != null) && (sourceList.options[i].selected == true))
        {
            sourceList.options[i] = null;
        }
    }
}


// Disables accidentally submitting a form when the "Enter" key is pressed.
// Just add "onkeydown='return disableEnterKey(event);'" to form.
function disableEnterKey(e)
{
     var key;

     if(window.event)
          key = window.event.keyCode;     //Internet Explorer
     else
          key = e.which;     //Firefox & Netscape

     if(key == 13)  //if "Enter" pressed, then disable!
          return false;
     else
          return true;
}


//******************************************************
// Functions used by controlled vocabulary add-on
// There might be overlaping with existing functions
//******************************************************

function expandCollapse(node, contextPath) {
    node = node.parentNode;
    var childNode  = (node.getElementsByTagName("ul"))[0];

    if(!childNode) return false;

    var image = node.getElementsByTagName("img")[0];

    if(childNode.style.display != "block") {
        childNode.style.display  = "block";
        image.src = contextPath + "/image/controlledvocabulary/m.gif";
        image.alt = "Collapse search term category";
    } else {
        childNode.style.display  = "none";
        image.src = contextPath + "/image/controlledvocabulary/p.gif";
        image.alt = "Expand search term category";
    }

    return false;
}


function getAnchorText(ahref) {
    if(isMicrosoft()) return ahref.childNodes.item(0).nodeValue;
    else return ahref.text;
}

function getTextValue(node) {
    if(node.nodeName == "A") {
        return getAnchorText(node);
    } else {
        return "";
    }
}


function getParentTextNode(node) {
    var parentNode = node.parentNode.parentNode.parentNode;
    var children = parentNode.childNodes;
    var textNode;
    for(var i=0; i< children.length; i++) {
        var child = children.item(i);
        if(child.className == "value") {
            return child;
        }
    }
    return null;
}

function ec(node, contextPath) {
    expandCollapse(node, contextPath);
    return false;
}


function i(node) {
    return sendBackToParentWindow(node);
}


function getChildrenByTagName(rootNode, tagName) {
    var children = rootNode.childNodes;
    var result = new Array(0);
    if(children == null) return result;
    for(var i=0; i<children.length; i++) {
        if(children[i].tagName == tagName) {
            var elementArray = new Array(1);
            elementArray[0] = children[i];
            result = result.concat(elementArray);
        }
    }
    return result;
}

function popUp(URL) {
    var page;
    page = window.open(URL, 'controlledvocabulary', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=650,height=450');
}


function isNetscape(v) {
          return isBrowser("Netscape", v);
}

function isMicrosoft(v) {
          return isBrowser("Microsoft", v);
}

function isMicrosoft() {
          return isBrowser("Microsoft", 0);
}


function isBrowser(b,v) {
          browserOk = false;
          versionOk = false;

          browserOk = (navigator.appName.indexOf(b) != -1);
          if (v == 0) versionOk = true;
          else  versionOk = (v <= parseInt(navigator.appVersion));
          return browserOk && versionOk;
}





//--------------------------------------------------------------------------------
// コミュニティリスト
//     Community List
function tg(id, node) {

    var folder = document.getElementById(id);
    if (folder != null) {
        if (folder.style.display != "block") {
            if (node != null) {
                node.src = "/dspace/image/communitylist/open.ico";
            }
            folder.style.display = "block";
        }
        else {
            if (node != null) {
                node.nextSibling.src = "/dspace/image/communitylist/close.ico";
                node.src = "/dspace/image/communitylist/close.ico";
            }
            folder.style.display = "none";
        }
    }
}
//--------------------------------------------------------------------------------

//--------------------------------------------------------------------------------
//
// アイテム所属コレクション変更
//     Add to list of collection on this page -- invoked by collection popup window
//
function addCollection(id, name)
{
    var newplace = window.document.collectionselect_popup.collection_id.options.length;

    if (newplace > 0 && window.document.collectionselect_popup.collection_id.options[0].value == "")
    {
        newplace = 0;
    }

    // First we check to see if e-person is already there
    for (var i = 0; i < window.document.collectionselect_popup.collection_id.options.length; i++)
    {
        if (window.document.collectionselect_popup.collection_id.options[i].value == id)
        {
            newplace = -1;
        }
    }

    if (newplace > -1)
    {
        window.document.collectionselect_popup.collection_id.options[newplace] = new Option(name, id);
    }
}

function finishCollection()
{
    if (undefined == window.document.collectionselect_popup.collection_id) {
        return;
    }

    selectAll(window.document.collectionselect_popup.collection_id);

    if (popupWindow != null)
    {
        popupWindow.close();
    }
}

//
//     Select Collection
//
function load_change_community() {
  id = document.getElementById('community_id').options[document.getElementById('community_id').selectedIndex].value;

  new Ajax.Updater('community_id', '/dspace/community-selectlist?type=1&community_id=' + id, {method: 'get'});
  new Ajax.Updater('collection_id', '/dspace/community-selectlist?type=2&community_id=' + id, {method: 'get'});

}
//--------------------------------------------------------------------------------

//--------------------------------------------------------------------------------
//
// 著者拡張
//
function addAuthorExt(id, name)
{
    var newplace = window.document.authorext.authorext_id.options.length;

    if (newplace > 0 && window.document.authorext.authorext_id.options[0].value == "")
    {
        newplace = 0;
    }

    for (var i = 0; i < window.document.authorext.authorext_id.options.length; i++)
    {
        if (window.document.authorext.authorext_id.options[i].value == id)
        {
            newplace = -1;
        }
    }

    if (newplace > -1)
    {
        window.document.authorext.authorext_id.options[newplace] = new Option(id + ":" + name, id);
    }
}

function finishAuthorExt()
{
    selectAll(window.document.authorext.authorext_id);

    if (popupWindow != null)
    {
        popupWindow.close();
    }
}
//--------------------------------------------------------------------------------

//--------------------------------------------------------------------------------
//
// Search Box Clear
//
function clearAdvancedSearchBox() {

    // 検索ボックスの数
    var search_num = 4;

    // 検索するエレメントの接頭辞
    var search_elements_name = [
        "conjunction",
        "field",
        "query",
    ];

    // 接頭辞分ぐるぐる
    for (i = 0; i < search_elements_name.length; i++) {

        // 数分ぐるぐる
        for (j = 0; j < search_num; j++) {

            // エレメント名
            var name = search_elements_name[i] + (j + 1);

            // エレメント取得
            var elements = document.getElementsByName(name);

            // エレメント分ぐるぐる
            for (k = 0; k < elements.length; k++) {
                switch (elements[k].type) {
                    case "text":
                        elements[k].value = "";
                        break;
                    case "select-one":
                        elements[k].selectedIndex = 0;
                        break;
                }
            }
        }
    }
}
//--------------------------------------------------------------------------------