/*
* oSlide - jQuery Plugin
* A slideshow designet for the frontside of my protfolio
*
* Copyright (c) 2011 Andrés Bott
* Examples and documentation at: http://andresbott.com or http://oslide.andresbott.com
* 
* Version: 0.9.1(5/Apr/2011)
* Developed with: jQuery v1.4
* 
* licensed under the LGPL license:
*   http://www.gnu.org/licenses/lgpl.html
* 
*This plugin is developed with a object oriented paradigm, so it has some public methods witch you can call to interact with the plugin
*
*----->  calling the plugin: 
*
*  $(document).ready(function() {
*      $("#oSlideContainer").oSlide({options:"go here"});  // call the plugin
*  
*      var myplugin = $("#oSlideContainer").data('JsObj');  // get the plugin object instance
*
*      myplugin.publicMethod(); // cals a public method
*
*  });// close document ready
*
*/
(function($) {
    var oSlide = function(element, options) {
        var container = $(element); var jsObj = this; var oSlide_div = false; var loading = false; var container_heigh = $(container).height(); var container_width = $(container).width(); var imagenes = false; var loadingTimer = false; var loading = false; var loadingFrame = 1; var $startTimeMS = 0; var $timeLeft = false; var $isInImageTransition = false; var $MainLoopTimer = "inactive"
        var $nextImage = 0; var $currentImage = false; var $loop_started = false; var $eventMouseOver = false; var $main_loop = false; var defaults = { mouseOverStopSlide: true, enableCaptions: true, divCaptionId: "oSlideCaption", divCaptionTextId: "oSlideCaptionText", divCaptionbackgroundId: "oSlideCaptionBackground", enableNavigationBar: true, divNavigationBarId: "oSlideNavigation", enableNavigationControls: true, divNavigationNextId: "oSlideNextNavigation", divNavigationPrewtId: "oSlidePrewNavigation", animation: "fade", images: false, thumbnailsDIV: false, fade_color: "white", sleep: 5000, fade_time: 300, debug: false }; var options = $.extend(defaults, options); var constructor = function() {
            consoleOut("Constructor of oSlide")
            $(container).css("position", "relative")
            $(container).append(oSlide_div = $('<div id="oSlideImageDiv" style="position:absolute; overflow:hidden;"></div>')); $(oSlide_div).width(container_width)
            $(oSlide_div).height(container_heigh)
            imagenes = getImagesData(); if (imagenes != false) {
                showLoading(); if (options.debug == "loading") { return true; }
                if (options.mouseOverStopSlide == true) {
                    $(container).mouseenter(function() {
                        consoleOut("mouse Enter $MainLoopTimer: " + $MainLoopTimer)
                        if ($eventMouseOver == false) {
                            $timeLeft = parseInt(options.sleep - ((new Date()).getTime() - $startTimeMS)); consoleOut("pause Main Loop with time left=" + $timeLeft)
                            clearTimeout($main_loop); $MainLoopTimer = "inactive"; $eventMouseOver = true;
                        } 
                    }); $(container).mouseleave(function() {
                        consoleOut("Mouse Exit $MainLoopTimer: " + $MainLoopTimer)
                        if ($eventMouseOver == true) {
                            if ($MainLoopTimer == "inactive") {
                                $MainLoopTimer = "active"; consoleOut("Resume Main Loop; $timeLeft: " + $timeLeft)
                                $main_loop = setTimeout(jsObj.SlideNext, $timeLeft);
                            }
                            $eventMouseOver = false;
                        } 
                    });
                }
                jsObj.SlideNext(function() {
                    if (options.enableNavigationBar == true) { showNavigationBar(); }
                    if (options.enableNavigationControls == true) { showNavigationControls(); } 
                });
            } else {
                consoleOut("ERROR: No images declarated, hidding the divs!")
                $(container).remove();
            } 
        }
        this.publicMethod = function()
        { if (options.debug == true) { console.log("Just called PublicMethod() ") }; }; var consoleOut = function(message) {
            if (typeof (message) == 'undefined') { var message = "WARNING: a consoleOut event was called here without any message!"; }
            if (typeof (console) !== 'undefined' && console != null && options.debug == true) { console.log(message); } 
        }
        var getImagesData = function() {
            consoleOut("just called private method: getImagesData() "); if (options.images == false) {
                if (typeof ($(options.thumbnailsDIV).find("a").first().attr("href")) != "undefined") {
                    var imagenes = new Array(); $(options.thumbnailsDIV).find("a").each(function(j) {
                        if (typeof ($(this).attr("href")) != "undefined") {
                            var this_img = this; imagenes[j] = new Array(); imagenes[j]["url"] = this_img.attr("href"); if (typeof (this_img.attr("alt")) != "undefined") { imagenes[j]["desc"] = this_img.attr("alt"); }
                            if (typeof (this_img.attr("link")) != "undefined") { imagenes[j]["link"] = this_img.attr("link"); }
                            imagenes[j]["loaded"] = false;
                        } 
                    });
                } else { return false; } 
            } else { var imagenes = options.images; }
            imagenes["longitud"] = imagenes.length; return imagenes;
        }; var showLoading = function() {
            consoleOut("just called private method: showLoading() "); if (loading == false) { $(container).append(loading = $('<div id="oSlide-loading" ><div id="oSlide-loading-image"></div></div>')); }
            if (typeof (loadingTimer) != "undefined") { clearInterval(loadingTimer); }
            loading.show(); loadingTimer = setInterval(animateLoading, 80);
        }; var hideLoading = function()
        { consoleOut("just called private method: hideLoading() "); loading.hide(); clearInterval(loadingTimer); }; var animateLoading = function() {
            if (!loading.is(':visible')) { clearInterval(loadingTimer); return; }
            $(container).find("#oSlide-loading div").css('top', (loadingFrame * -40) + 'px'); loadingFrame = (loadingFrame + 1) % 12;
        }; this.SlideNext = function(callback2)
        { var callback2; consoleOut("just called public method: SlideNext() $nextImage: " + $nextImage + " $currentImage: " + $currentImage); if ($isInImageTransition != true) { $isInImageTransition = true; $MainLoopTimer = "inactive"; clearTimeout($main_loop); singleImagePreload(function() { loopControl(); if (typeof (callback2) == "function") { callback2(); } }); } }; this.SlidePrew = function(callback3) {
            if ($isInImageTransition != true) {
                if ($currentImage == 0) { $nextImage = imagenes.length - 1; } else { $nextImage = $currentImage - 1; }
                consoleOut("just called public method: SlidePrew() $nextImage: " + $nextImage + " $currentImage: " + $currentImage); jsObj.SlideNext(callback3);
            } 
        }; this.SlideToImg = function($imgId, callback4) {
            if ($currentImage != $imgId) {
                if ($isInImageTransition != true)
                { consoleOut("just called public method: SlideToImg($img = " + $imgId + " , callback2 = " + callback4 + ") "); $nextImage = $imgId; jsObj.SlideNext(); if (typeof (callback4) == "function") { callback4(); } } 
            } 
        }; var singleImagePreload = function(callback) {
            consoleOut("just called private method: singleImagePreload(callback)"); var callback; if (imagenes[$nextImage]["loaded"] != true) {
                showLoading(); imagenes[$nextImage]["img"] = new Image(); $(imagenes[$nextImage]["img"]).load(function()
                { imagenes[$nextImage]["loaded"] = true; callback(); }).attr("src", imagenes[$nextImage]["url"]);
            } else { callback(); } 
        }
        var loopControl = function() {
            consoleOut("just called private method: loopControl()"); if (imagenes[$nextImage]["loaded"] == true) {
                hideLoading(); transitionToImage($currentImage, $nextImage, options.animation)
                if ($nextImage == imagenes["longitud"] - 1)
                { $currentImage = $nextImage; $nextImage = 0; } else { $currentImage = $nextImage; $nextImage = $nextImage + 1; }
                if ($MainLoopTimer == "inactive" && $eventMouseOver == false)
                { $MainLoopTimer = "active"; $startTimeMS = (new Date()).getTime(); $main_loop = setTimeout(jsObj.SlideNext, options.sleep); } 
            } 
        }
        var insertImage = function(id, container) {
            consoleOut("just called private method: insertImage(" + id + "," + container + ")"); var img = false; if (typeof (imagenes[id]["link"]) != "undefined")
            { $(container).append('<a href="' + imagenes[id]["link"] + '" ><div id="oSilideImg_' + id + '" style=" display:none; " ></div></a>'); } else { $(container).append('<div id="oSilideImg_' + id + '" style="display:none; " ></div>'); }
            if (typeof (imagenes[id]["desc"]) != "undefined" && options.enableCaptions == true) {
                $(container).find('#oSilideImg_' + id).append(' <div id="' + options.divCaptionId + '">\
         <div id="' + options.divCaptionbackgroundId + '" > <span style="position:relative;left:-10000px;">' + imagenes[id]["desc"] + '<span></div>\
         <div id="' + options.divCaptionTextId + '" ><span>' + imagenes[id]["desc"] + '</span></div>\
        </div>\
           ')
            }
            $(container).find('#oSilideImg_' + id).append(img = $('<img src="' + imagenes[id]["url"] + '" />'))
            imgResize(img, container_heigh, container_width);
        }
        var transitionToImage = function($currentImage, $nextImage, $animation) {
            consoleOut("just called private method: transitionToImage(" + $currentImage + "," + $nextImage + "," + $animation + ")"); switch ($animation) {
                case 5: break; default: if ($loop_started != true) {
                        $(oSlide_div).css("background-color", options.fade_color)
                        insertImage($nextImage, oSlide_div); $(oSlide_div).find('#oSilideImg_' + $nextImage).fadeIn(options.fade_time, function() {
                            if (options.mouseOverStopSlide == true && $eventMouseOver == true)
                            { main_loop_timer = "inactive"; clearTimeout($main_loop); }
                            $isInImageTransition = false; if (options.enableNavigationBar == true)
                            { $(container).find('#' + options.divNavigationBarId + ' .oSlideNavigationElementId_' + $nextImage).addClass("oSlideNavigationActiveElement"); } 
                        }); $loop_started = true;
                    } else {
                        $(oSlide_div).find('#oSilideImg_' + $currentImage).fadeOut(options.fade_time, function() {
                            insertImage($nextImage, oSlide_div); $(oSlide_div).find('#oSilideImg_' + $nextImage).fadeIn(options.fade_time, function() {
                                if (options.mouseOverStopSlide == true && $eventMouseOver == true)
                                { main_loop_timer = "inactive"; clearTimeout($main_loop); }
                                $isInImageTransition = false;
                            }); if (typeof (imagenes[$currentImage]["link"]) != "undefined") { $(oSlide_div).find('#oSilideImg_' + $currentImage).parent().remove(); } else { $(oSlide_div).find('#oSilideImg_' + $currentImage).remove(); }
                            consoleOut("Removing image: " + $currentImage); if (options.enableNavigationBar == true)
                            { $(container).find('#' + options.divNavigationBarId + ' .oSlideNavigationElementId_' + $nextImage).addClass("oSlideNavigationActiveElement"); $(container).find('#' + options.divNavigationBarId + ' .oSlideNavigationElementId_' + $currentImage).removeClass("oSlideNavigationActiveElement"); } 
                        });
                    } 
            } 
        }
        var showNavigationBar = function() {
            $(container).append('<div id="' + options.divNavigationBarId + '"></div>'); for (i = 0; i < imagenes["longitud"]; i = i + 1) {
                $(container).find('#' + options.divNavigationBarId).append('<div class="oSlideNavigationElement oSlideNavigationElementId_' + i + '"><span class="' + i + '">' + (i + 1) + '</span></div>')
                $(container).find('.oSlideNavigationElementId_' + i).click(function() {
                    if ($isInImageTransition != true) {
                        consoleOut("Click on active transition = FALSE"); if (!$(this).hasClass('oSlideNavigationActiveElement')) {
                            var element = $(this).children('span').attr('class'); clearTimeout($main_loop); $nextImage = parseInt(element); $timeLeft = options.sleep
                            jsObj.SlideNext();
                        } 
                    } else { consoleOut("Click on active transition = TRUE"); } 
                });
            }
            $(container).find('#' + options.divNavigationBarId).fadeIn(options.fade_time * 3);
        }
        var showNavigationControls = function() {
            $(container).append('<div id="' + options.divNavigationNextId + '" class="oSlideNavigationControl"><div></div></div>'); var NextButton = $(container).find('#' + options.divNavigationNextId)
            $(container).append('<div id="' + options.divNavigationPrewtId + '" class="oSlideNavigationControl"><div></div></div>'); var PrewButton = $(container).find('#' + options.divNavigationPrewtId)
            $(NextButton).height(container_heigh); $(NextButton).fadeIn(options.fade_time * 3); $(PrewButton).height(container_heigh); $(PrewButton).fadeIn(options.fade_time * 3); $(NextButton).click(function() {
                consoleOut("Click on navigation controls NEXT")
                $timeLeft = options.sleep
                jsObj.SlideNext();
            }); $(PrewButton).click(function() {
                consoleOut("Click on navigation controls Prew")
                $timeLeft = options.sleep
                jsObj.SlidePrew();
            });
        }
        var imgResize = function($img, $height, $width) {
            var aspectRatio = 0; var isIE6 = $.browser.msie && (6 == ~ ~$.browser.version); if ($height && $width)
            { aspectRatio = $width / $height; }
            return $img.one("load", function() {
                this.removeAttribute("height"); this.removeAttribute("width"); this.style.height = this.style.width = ""; var imgHeight = this.height; var imgWidth = this.width; var imgAspectRatio = imgWidth / imgHeight; var bxHeight = $height; var bxWidth = $width; var bxAspectRatio = aspectRatio; if (!bxAspectRatio) {
                    if (bxHeight)
                    { bxAspectRatio = imgAspectRatio + 1; } else { bxAspectRatio = imgAspectRatio - 1; } 
                }
                if ((bxHeight && imgHeight > bxHeight) || (bxWidth && imgWidth > bxWidth)) {
                    if (imgAspectRatio < bxAspectRatio)
                    { bxHeight = ~ ~(imgHeight / imgWidth * bxWidth); } else { bxWidth = ~ ~(imgWidth / imgHeight * bxHeight); }
                    this.height = bxHeight; this.width = bxWidth;
                } 
            }).each(function()
            { if (this.complete || isIE6) { $(this).trigger("load"); } });
        }
        constructor();
    }; $.fn.oSlide = function(options) {
        return this.each(function()
        { var element = $(this); if (element.data('JsObj')) return; var myplugin = new oSlide(this, options); element.data('JsObj', myplugin); });
    };
})(jQuery);