pr2/translate/STransNavXML.php5

<?php
class STransNavXML extends STransXML
{
    public function doc() {
        return "STransNavXML translates a NavXML string to generate"
                . " all the navigation elements of your page-- the"
                . " breadcrumbs and the jump-to, browse, and search controls.";
    }

    /*-----------------------------------------------------*/
    /* Translate a given SInput object (presumably "nav" XML)
    /*-----------------------------------------------------*/

    public function translate ($si)
    {
        if(parent::translate($si) === false) return false;
        $xml = SXMLHelper::parse($si->getSource());

        // Search, Browse, JumpTo
        $this->page->setSlot('TopBarNavWell1', $this->formatNavJumpToHtml($xml, $si));
        $this->page->setSlot('TopBarNavWell2', $this->formatNavBrowseHtml($xml, $si));
        $this->createSearchBox($xml);

        // create the tabs if there are any
        if(isset($xml->tabs))
        {
            if (isset($xml->tabs->level[0])){ $this->page->setSlot('TabsBar1', $this->formatTabs($xml->tabs->level[0], 1)); }
            if (isset($xml->tabs->level[1])){ $this->page->setSlot('TabsBar2', $this->formatTabs($xml->tabs->level[1], 2));}
        }

        //Breadcrumbs
        $this->formatNavLocHtml($xml);
        return true;
    }


    /*-----------------------------------------------------*/
    /* Create the search box if the necessary XML is there
    /*-----------------------------------------------------*/

    protected function createSearchBox ($xml)
    {
        if (isset($xml->search) && isset($xml->search->link))
        {

            if (isset($SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], "Safari")){

            $this->page->setSlot('TopBarNavWell3', <<<END_SEARCH

<input type="search" results="10" autosave="ShodorPR2" name="ss" id="sbox" size="16" value=" Search" onclick="javascript:if(this.value==' Search')this.value='';" onblur="javascript:if(this.value=='')this.value=' Search';"/>
END_SEARCH
);
            } else {

            $this->page->setSlot('TopBarNavWell3', <<<END_SEARCH

<input type="text" name="ss" id="sbox" size="13" value=" Search" onclick="javascript:if(this.value==' Search')this.value='';" onblur="javascript:if(this.value=='')this.value=' Search';"/>
END_SEARCH
);
            }
            $this->page->setSlot('SearchScript', $xml->search->link);
        }
    }


    /*-----------------------------------------------------*/
    /* Create Browse and JumpTo Pulldowns
    /*-----------------------------------------------------*/

    protected function formatNavJumpToHtml($navXml, $si)
    {
        if (!isset($navXml->jumpTo)){ return (""); }
        return $this->buildPullDown($navXml->jumpTo, "JumpToMenu", "Jump To:", "jumpTo", "", $si);
    }

    protected function formatNavBrowseHtml($navXml, $si)
    {
        if (!isset($navXml->browse)){ return (""); }
        $rand = rand(0,1000);
        //return $this->buildPullDown($navXml->browse, "BrowseMenu", "Browse:", "browse", " + '&transaction_id=' + get_random()", $si);
        return $this->buildPullDown($navXml->browse, "BrowseMenu", "Browse:", "browse", "&transaction_id=$rand", $si);
    }



    /*-----------------------------------------------------*/
    /* Create The Breadcrumbs
    /*-----------------------------------------------------*/

    protected function formatNavLocHtml($navXml)
    {
        $htmlOutput = "";
        $outarray = array();
        foreach ($navXml->path->level as $curlevel) {
            array_push($outarray, "<a href=\"" . $curlevel->link[0]->value . "\">" . $curlevel->link[0]->name . "</a>");
        }
        $this->page->setSlot('Path', implode(" &gt; ", $outarray));
    }

    /*-----------------------------------------------------*/
    /* Helper Function for Building Pulldowns
    /*-----------------------------------------------------*/
    /*  FUNCTION: buildPullDown($xmlSection, $id, $name, $function, $extraScript)
        INPUT: a section of NAV XML that has a set of levels, each of which has a value, a link, and a name; an ID for the pulldown element on the page; the name of the pulldown (i.e. what appears on the top element); the function called by the pulldown, and any extra script that needs to go after the selection script for each item before the link is passed to the function
        OUTPUT: an HTML pulldown menu that calls the approprate function when selected. Also stores javascript arrays of the links read in (indexed by their values) into a special javascript buffer ($navJs) that is later added to the scripts area during layoutScripts().
        */

    protected function buildPullDown ($xmlSection, $id, $name, $function, $extraScript, $si)
    {
        $htmlOutput = "<select id=\"$id\" onchange=\"javascript:if(this.options[this.selectedIndex].value &lt;= 0) { this.selectedIndex = 0; } else { $function(this.options[this.selectedIndex].value);}\">";
        $htmlOutput .= "<option selected=\"selected\" value=\"0\">$name</option>";
        $count = 1;
        $navJSAdd = "";
        $navJSAdd .= "var $function" . "_links" . " = new Array(''";
        foreach($xmlSection->children() as $tag => $child)
        {
            switch($tag){
                case 'level':
                    $htmlOutput .= "<option value=\"" . $count . "\">" . $child->name . "</option>";
                    $linkValue = "";
                    if (isset($child->link)) $linkValue = $child->link . $extraScript;
                    $linkValue = rawurlencode(utf8_encode($linkValue));
//                  $navJSAdd .= ", '$linkValue'$extraScript";
                    $navJSAdd .= ", '$linkValue'";
                    $count++;
                    break;
                case 'levelSeparator':
                    $htmlOutput .= "<option disabled=
\"disabled\" value=\"-1\">--------</option>";
                    break;
                default:
                    break;
            }
        }
        $navJSAdd .= ");\n";
        $this->page->appendToSlot('ExtraJS', $navJSAdd);
//      $this->page->appendToSlot('OnLoad', "document.getElementById('$id').selectedIndex = 0;");
        $htmlOutput .= "</select>";
        return $htmlOutput;
    }


    protected function formatTabs ($xml, $level)
    {
        //print("hello");
        $htmlOutput = "";
        //$htmlOutput .= "<ul>";
        foreach($xml->link as $link)
        {
            $select = "";
            $selectedTab = strtolower($this->getOption('selectedTab' . $level));
            if ($selectedTab != "")
            {
                $linkValueParts = explode("/", $link->value);
                $linkPageName = $linkValueParts[count($linkValueParts) - 1];
                $linkPageNameParts = explode("?", $linkPageName);
                $linkPageName = $linkPageNameParts[0];
                if ($selectedTab == strtolower($link->name)
                    || $selectedTab == strtolower($link->value)
                    || $selectedTab == strtolower($linkPageName)
                    )
                { $select = " class=\"select\""; }
            }
            $htmlOutput .= <<<ENDLINK
<li$select><a href="$link->value">$link->name</a></li>
ENDLINK;
        }
        //print("tabs for level $level are ");
        //print( ($htmlOutput == "") ? "blank" : "not blank");

        return ($htmlOutput == "") ? "" : "<ul>$htmlOutput</ul>";


        //$htmlOutput .= "</ul>";
        //return $htmlOutput;
    }
}

?>

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