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/**
* AJAX functions for the pagename quicksearch
*
* @license GPL2 (http://www.gnu.org/licenses/gpl.html)
* @author Andreas Gohr <andi@splitbrain.org>
* @author Adrian Lang <lang@cosmocode.de>
*/
addInitEvent(function () {
var inID = 'qsearch__in';
var outID = 'qsearch__out';
var inObj = document.getElementById(inID);
var outObj = document.getElementById(outID);
// objects found?
if (inObj === null){ return; }
if (outObj === null){ return; }
function clear_results(){
outObj.style.display = 'none';
outObj.innerHTML = '';
}
var sack_obj = new sack(DOKU_BASE + 'lib/exe/ajax.php');
sack_obj.AjaxFailedAlert = '';
sack_obj.encodeURIString = false;
sack_obj.onCompletion = function () {
var data = sack_obj.response;
if (data === '') { return; }
outObj.innerHTML = data;
outObj.style.display = 'block';
outObj.style['white-space'] = 'nowrap';
// shorten namespaces if too long
var width = outObj.clientWidth;
var links = outObj.getElementsByTagName('a');
for(var i=0; i<links.length; i++){
// maximum allowed width:
var max = width - links[i].offsetLeft;
var isRTL = (document.documentElement.dir == 'rtl');
if(!isRTL && links[i].offsetWidth < max) continue;
if(isRTL && links[i].offsetLeft > 0) continue;
var nsL = links[i].innerText.indexOf('(');
var nsR = links[i].innerText.indexOf(')');
var eli = 0;
var runaway = 0;
while( (nsR - nsL > 3) &&
(
(!isRTL && links[i].offsetWidth > max) ||
(isRTL && links[i].offsetLeft < 0)
)
){
if(runaway++ > 500) return; // just in case something went wrong
if(eli){
// elipsis already inserted
if( (eli - nsL) > (nsR - eli) ){
// cut left
links[i].innerText = links[i].innerText.substring(0,eli-2)+
links[i].innerText.substring(eli);
}else{
// cut right
links[i].innerText = links[i].innerText.substring(0,eli+1)+
links[i].innerText.substring(eli+2);
}
}else{
// replace middle with ellipsis
var mid = Math.floor( nsL + ((nsR-nsL)/2) );
links[i].innerText = links[i].innerText.substring(0,mid)+'…'+
links[i].innerText.substring(mid+1);
}
eli = links[i].innerText.indexOf('…');
nsL = links[i].innerText.indexOf('(');
nsR = links[i].innerText.indexOf(')');
}
}
};
// attach eventhandler to search field
var delay = new Delay(function () {
clear_results();
var value = inObj.value;
if(value === ''){ return; }
sack_obj.runAJAX('call=qsearch&q=' + encodeURI(value));
});
addEvent(inObj, 'keyup', function () {clear_results(); delay.start(); });
// attach eventhandler to output field
addEvent(outObj, 'click', function () {outObj.style.display = 'none'; });
});
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