/**

 * Copyright (c) 2009 Dave Ross <dave@csixty4.com>

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated

 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the

 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit

 * persons to whom the Software is furnished to do so, subject to the following conditions:

 *

 *   The above copyright notice and this permission notice shall be included in all copies or substantial portions of the

 * Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 

 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 

 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 **/

 

///////////////////////

// LiveSearch

///////////////////////



function LiveSearch() {

	var resultsElement = '';

	var searchBoxes = '';

}



LiveSearch.activeRequests = new Array();



/**

 * Initialization for the live search plugin.

 * Sets up the key handler and creates the search results list.

 */

LiveSearch.init = function() {

	

	jQuery("body").append('<ul class="search_results"></ul>');

	this.resultsElement = jQuery('ul.search_results');

	this.resultsElement.hide();

	

	// Add the keypress handler

	// Using keyup because keypress doesn't recognize the backspace key

	// and that's kind of important.

	LiveSearch.searchBoxes = jQuery("input[name='s']");

	LiveSearch.searchBoxes.keyup(LiveSearch.handleKeypress);

	

	// Prevent browsers from doing autocomplete on the search field

	LiveSearch.searchBoxes.parent('form').attr('autocomplete', 'off');

	

	// Hide the search results when the search box loses focus

	jQuery("html").click(LiveSearch.hideResults);

	LiveSearch.searchBoxes.add(this.resultsElement).click(function(e) { e.stopPropagation(); });

	

}



LiveSearch.positionResults = function() {

	

	// Look for the search box. Exit if there isn't one.

	if(LiveSearch.searchBoxes.size() === 0) {

		return false;

	}

		

	// Position the ul right under the search box	

	var searchBoxPosition = LiveSearch.searchBoxes.offset();

	this.resultsElement.css('left', searchBoxPosition.left);



	this.resultsElement.css('display', 'block');

	var topOffset = searchBoxPosition.top + LiveSearch.searchBoxes.outerHeight();


	this.resultsElement.css('top', topOffset + 'px');

};



/**

 * Process the search results that came back from the AJAX call

 */

LiveSearch.handleAJAXResults = function(e) {

	

	var showThumbs = false;

	var showExcerpt = false;

	

	LiveSearch.activeRequests.pop();



	resultsSearchTerm = e.searchTerms;

	if(resultsSearchTerm != LiveSearch.searchBoxes.val()) {

		

		if(LiveSearch.activeRequests.length == 0) {

			LiveSearch.removeIndicator();

		}



		return;

	}

	

	var resultsShownFor = jQuery("ul.search_results").children("input[name=query]").val();

	if(resultsShownFor != "" && resultsSearchTerm == resultsShownFor)

	{

		if(LiveSearch.activeRequests.length == 0) {

			LiveSearch.removeIndicator();

		}



		return;

	}



	var searchResultsList = jQuery("ul.search_results");

	searchResultsList.empty();

	searchResultsList.append('<input type="hidden" name="query" value="' + resultsSearchTerm + '" />');



	if(e.results.length == 0) {

		// Hide the search results, no results to show

		LiveSearch.hideResults();

	}

	else {

		for(var postIndex = 0; postIndex < e.results.length; postIndex++) {

			var searchResult = e.results[postIndex];

			if(searchResult.post_title !== undefined) {

				





				var renderedResult = '';

				

				// Thumbnails

				if(showThumbs && searchResult.attachment_thumbnail) {

					var liClass = "post_with_thumb";

				}

				else {

					var liClass = "";

				}

				

				renderedResult += '<li class="' + liClass + '">';

				

				// Render thumbnail

				if(showThumbs && searchResult.attachment_thumbnail) {

					renderedResult += '<img src="' + searchResult.attachment_thumbnail + '" class="post_thumb" />';

				}

				

				renderedResult += '<a href="' + searchResult.permalink + '">' + searchResult.post_title + '</a>';



				if(showExcerpt && searchResult.post_excerpt) {

					renderedResult += '<p class="excerpt clearfix">' + searchResult.post_excerpt + '</p>';

				}

				

				if(e.displayPostMeta) {

					renderedResult += '<p class="meta clearfix" id="daves-wordpress-live-search_author">Posted by ' + searchResult.post_author_nicename + '</p><p id="daves-wordpress-live-search_date" class="meta clearfix">' + searchResult.post_date + '</p>';

					renderedResult += '<div class="clearfix"></div></li>';



				}

				searchResultsList.append(renderedResult);

			}

		}

		

		// "more" link

		searchResultsList.append('<div class="clearfix search_footer"><a href="http://www.webtermine.at/?s=' + resultsSearchTerm + '">Alle Suchergebnisse anzeigen</a></div>');



		// Show the search results

		LiveSearch.showResults();



	}

	

	if(LiveSearch.activeRequests.length == 0) {

		LiveSearch.removeIndicator();

	}

};



/**

 * Keypress handler. Sets up a 0 sec. timeout which then

 * kicks off the actual query.s

 */

LiveSearch.handleKeypress = function(e) {

	var delayTime = 0;

	var term = LiveSearch.searchBoxes.val();

	setTimeout( function() { LiveSearch.runQuery(term); }, delayTime);

};



/**

 * Do the AJAX request for search results, or hide the search results

 * if the search box is empty.

 */

LiveSearch.runQuery = function(terms) {

	

	var srch=LiveSearch.searchBoxes.val();

	if(srch === "" || srch.length < 1) {

		// Nothing entered. Hide the autocomplete.

		LiveSearch.hideResults();

		LiveSearch.removeIndicator();

	}

	else {

		// Do an autocomplete lookup

		LiveSearch.displayIndicator();

		

		// Clear out the old requests in the queue

		while(LiveSearch.activeRequests.length > 0)

		{

			var req = LiveSearch.activeRequests.pop();

			req.abort();

		}

		// do AJAX query

		//var currentSearch = jQuery("input[name='s']").val();

		var currentSearch = terms;

		

		var req = jQuery.getJSON( "http://www.webtermine.at/wp-content/plugins/daves-wordpress-live-search/daves-wordpress-live-search-ajax.php", {s: currentSearch}, LiveSearch.handleAJAXResults);

		

		// Add this request to the queue

		LiveSearch.activeRequests.push(req);

	}

};



LiveSearch.hideResults = function() {

	switch('down')

	{

		case 'up':

			jQuery("ul.search_results:visible").fadeOut();

			return;

		case 'down':

		default:

			jQuery("ul.search_results:visible").slideUp();

			return;

	}

};



LiveSearch.showResults = function() {



	this.positionResults();

	

	switch('down')

	{

		case 'up':

			jQuery("ul.search_results:hidden").fadeIn();

			return;

		case 'down':

		default:

			jQuery("ul.search_results:hidden").slideDown();	

			return;

	}

};



/**

 * Display the "spinning wheel" AJAX activity indicator

 */

LiveSearch.displayIndicator = function() {

	

	if(jQuery("#search_results_activity_indicator").size() === 0) {



		jQuery("body").append('<img id="search_results_activity_indicator" src="http://www.webtermine.at/wp-content/plugins/daves-wordpress-live-search/indicator.gif" />');



		var searchBoxPosition = LiveSearch.searchBoxes.offset();



		jQuery("#search_results_activity_indicator").css('position', 'absolute');

		

		var indicatorY = (searchBoxPosition.top + ((LiveSearch.searchBoxes.outerHeight() - LiveSearch.searchBoxes.innerHeight()) / 2) + 'px');

		

		jQuery("#search_results_activity_indicator").css('top', indicatorY);



		var indicatorX = (searchBoxPosition.left + LiveSearch.searchBoxes.outerWidth() - 16 - 2) + 'px';

						

		jQuery("#search_results_activity_indicator").css('left', indicatorX);

	}

};



/**

 * Hide the "spinning wheel" AJAX activity indicator

 */

LiveSearch.removeIndicator = function() {

	jQuery("#search_results_activity_indicator").remove();

};



///////////////////

// Initialization

///////////////////



jQuery(function() {

	LiveSearch.init();

});