source: main/trunk/greenstone3/web/interfaces/oran/js/document_scripts.js@ 24467

/********************
* EXPANSION SCRIPTS *
********************/

var collapseImageURL = gs.imageURLs.collapse;
var expandImageURL = gs.imageURLs.expand;
var chapterImageURL = gs.imageURLs.chapter;
var pageImageURL = gs.imageURLs.page;

function toggleSection(sectionID)
{
    var docElem = document.getElementById("doc" + sectionID);
    var tocElem = document.getElementById("toc" + sectionID);
    
    var tocToggleElem = document.getElementById("ttoggle" + sectionID);
    var docToggleElem = document.getElementById("dtoggle" + sectionID);
    
    if(docElem.style.display == "none")
    {
        docElem.style.display = "block";
        docToggleElem.setAttribute("src", collapseImageURL);
        
        if(tocToggleElem)
        {
            tocToggleElem.setAttribute("src", collapseImageURL);
        }
        
        if(tocElem)
        {
            tocElem.style.display = "block";
        }
    }
    else
    {
        docElem.style.display = "none";
        
        //Use the page image if this is a leaf node and the chapter image if it not
        docToggleElem.setAttribute("src", expandImageURL);
        
        if(tocToggleElem)
        {
            tocToggleElem.setAttribute("src", expandImageURL);
        }
        
        if(tocElem)
        {
            tocElem.style.display = "none";
        }
    }
}

function isExpanded(sectionID)
{
    var docElem = document.getElementById("doc" + sectionID);
    if(docElem.style.display == "block")
    {
        return true;
    }
    return false;
}

function isParentOf(parent, child)
{
    if(child.indexOf(parent) != -1 && child.length > parent.length && child[parent.length] == '.')
    {
        return true;
    }
    return false;
}

function focusSection(sectionID)
{
    var tableOfContentsDiv = document.getElementById("tableOfContents");
    var images = tableOfContentsDiv.getElementsByTagName("img");
    var nodeArray = new Array();
    
    for(var i = 0; i < images.length; i++)
    {   
        nodeArray[i] = images[i].getAttribute("id").substring(7);
    }
    
    for(var j = 0; j < nodeArray.length; j++)
    {
        //If this is the node that was clicked and it is not expanded then expand it
        if(nodeArray[j] == sectionID)
        {
            if(!isExpanded(nodeArray[j]))
            {
                toggleSection(nodeArray[j]);
            }
            
            continue;
        }
        
        //If the node is a parent or child of the node that is clicked and is not expanded then expand it
        if((isParentOf(nodeArray[j], sectionID) || isParentOf(sectionID, nodeArray[j])) && !isExpanded(nodeArray[j]))
        {
            toggleSection(nodeArray[j]);
        }
        //If the node is not a parent or child and is expanded then collapse it
        else if(!(isParentOf(nodeArray[j], sectionID) || isParentOf(sectionID, nodeArray[j])) && isExpanded(nodeArray[j]))
        {
            toggleSection(nodeArray[j]);
        }
    }
}

/***********************
* HIGHLIGHTING SCRIPTS *
***********************/
function addHighlight()
{
    var spans = document.getElementsByTagName("span");
    for(var i = 0; i < spans.length; i++)
    {
        var currentSpan = spans[i];
        if(currentSpan.getAttribute("class") == "noTermHighlight")
        {
            currentSpan.setAttribute("class", "termHighlight");
        }
    }
    
    var option = document.getElementById("highlightOption");
    option.setAttribute("onclick", "removeHighlight();");
}

function removeHighlight()
{
    var spans = document.getElementsByTagName("span");
    for(var i = 0; i < spans.length; i++)
    {
        var currentSpan = spans[i];
        if(currentSpan.getAttribute("class") == "termHighlight")
        {
            currentSpan.setAttribute("class", "noTermHighlight");
        }
    }
    
    var option = document.getElementById("highlightOption");
    option.setAttribute("onclick", "addHighlight();");
}

/**************************
* REALISTIC BOOKS SCRIPTS *
**************************/

function bookInit()
{
    loadBook(); 
    hideText(); 
    showBook(); 
    swapLinkJavascript(false);
}

function hideText()
{
    var textDiv = document.getElementById("gs-document-text");
    textDiv.style.visibility = "hidden";
}

function showText()
{
    var textDiv = document.getElementById("gs-document-text");
    textDiv.style.visibility = "visible";
}

function hideBook()
{
    var bookDiv = document.getElementById("bookdiv");
    bookDiv.style.visibility = "hidden";
    bookDiv.style.height = "0px";
    
    var bookObject = document.getElementById("bookObject");
    bookObject.style.visibility = "hidden";
    bookObject.style.height = "0px";
    
    var bookEmbed = document.getElementById("bookEmbed");
    bookEmbed.style.visibility = "hidden";
    bookEmbed.style.height = "0px";
}

function showBook()
{
    var bookDiv = document.getElementById("bookdiv");
    bookDiv.style.visibility = "visible";
    bookDiv.style.height = "600px";
    
    var bookObject = document.getElementById("bookObject");
    bookObject.style.visibility = "visible";
    bookObject.style.height = "600px";
    
    var bookEmbed = document.getElementById("bookEmbed");
    bookEmbed.style.visibility = "visible";
    bookEmbed.style.height = "600px";
}

function swapLinkJavascript(rbOn)
{
    var option = document.getElementById("rbOption");
    if(rbOn)
    {
        option.setAttribute("onclick", "hideText(); showBook(); swapLinkJavascript(false);");
    }
    else
    {
        option.setAttribute("onclick", "hideBook(); showText(); swapLinkJavascript(true);");
    }
}

//Helper function to create param elements
function createParam(name, value)
{
    var param = document.createElement("PARAM");
    param.setAttribute("name", name);
    param.setAttribute("value", value);
    return param;
}

function loadBook()
{
    var doc_url = document.URL; 
    doc_url = doc_url.replace(/(&|\?)book=[a-z]+/gi,'');
    doc_url += '&book=flashxml';
    
    var img_cover = gs.collectionMetadata.httpPath + '/index/assoc/' + gs.documentMetadata.assocfilepath + '/cover.jpg';

    var flash_plug_html = ""
    flash_plug_html += '<OBJECT align="middle" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" \n';
    flash_plug_html += '  height="600px" id="bookObject" swLiveConnect="true" \n';
    flash_plug_html += '  codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" \n';
    flash_plug_html += '  width="70%">\n';
    flash_plug_html += '    <PARAM name="allowScriptAccess" value="always" />\n';
    flash_plug_html += '    <PARAM name="movie" value="Book.swf';
    flash_plug_html += '?src_image=' + escape(img_cover);
    flash_plug_html += '&doc_url=' + escape(doc_url)
    flash_plug_html += '" />\n';
    flash_plug_html += '    <PARAM name="quality" value="high" />\n';
    flash_plug_html += '    <PARAM name="bgcolor" value="#FFFFFF" />\n';
    flash_plug_html += '    <EMBED align="middle" \n';
    flash_plug_html += '      allowScriptAccess="always" swLiveConnect="true" \n';
    flash_plug_html += '      bgcolor="#FFFFFF" height="600px" name="Book" \n';
    flash_plug_html += '      pluginspage="http://www.macromedia.com/go/getflashplayer" \n';
    flash_plug_html += '      quality="high" id="bookEmbed"\n';
    flash_plug_html += '      src="Book.swf';
    flash_plug_html += '?src_image=' + escape(img_cover);
    flash_plug_html += '&doc_url=' + escape(doc_url);
    flash_plug_html += '"\n'; 
    flash_plug_html += '      type="application/x-shockwave-flash" width="70%" />\n';
    flash_plug_html += '</OBJECT>\n';
    var flash_div = document.getElementById("bookdiv");
    flash_div.innerHTML = flash_plug_html;
}