--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-content/themes/bgw/js/slider.js Fri Mar 12 13:29:04 2010 +0000
@@ -0,0 +1,210 @@
+
+//** Created: March 19th, 08'
+//** Aug 16th, 08'- Updated to v 1.4:
+ //1) Adds ability to set speed/duration of panel animation (in milliseconds)
+ //2) Adds persistence support, so the last viewed panel is recalled when viewer returns within same browser session
+ //3) Adds ability to specify whether panels should stop at the very last and first panel, or wrap around and start all over again
+ //4) Adds option to specify two navigational image links positioned to the left and right of the Carousel Viewer to move the panels back and forth
+
+//** Aug 27th, 08'- Nav buttons (if enabled) also repositions themselves now if window is resized
+
+var stepcarousel={
+ ajaxloadingmsg: '<div style="margin: 1em; font-weight: bold"><img src="ajaxloadr.gif" style="vertical-align: middle" /> Fetching Content. Please wait...</div>', //customize HTML to show while fetching Ajax content
+ defaultbuttonsfade: 0.4, //Fade degree for disabled nav buttons (0=completely transparent, 1=completely opaque)
+ configholder: {},
+
+ getCSSValue:function(val){ //Returns either 0 (if val contains 'auto') or val as an integer
+ return (val=="auto")? 0 : parseInt(val)
+ },
+
+ getremotepanels:function($, config){ //function to fetch external page containing the panel DIVs
+ config.$belt.html(this.ajaxloadingmsg)
+ $.ajax({
+ url: config.contenttype[1], //path to external content
+ async: true,
+ error:function(ajaxrequest){
+ config.$belt.html('Error fetching content.<br />Server Response: '+ajaxrequest.responseText)
+ },
+ success:function(content){
+ config.$belt.html(content)
+ config.$panels=config.$gallery.find('.'+config.panelclass)
+ stepcarousel.alignpanels($, config)
+ }
+ })
+ },
+
+ getoffset:function(what, offsettype){
+ return (what.offsetParent)? what[offsettype]+this.getoffset(what.offsetParent, offsettype) : what[offsettype]
+ },
+
+ getCookie:function(Name){
+ var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
+ if (document.cookie.match(re)) //if cookie found
+ return document.cookie.match(re)[0].split("=")[1] //return its value
+ return null
+ },
+
+ setCookie:function(name, value){
+ document.cookie = name+"="+value
+ },
+
+ fadebuttons:function(config, currentpanel){
+ config.$leftnavbutton.fadeTo('fast', currentpanel==0? this.defaultbuttonsfade : 1)
+ config.$rightnavbutton.fadeTo('fast', currentpanel==config.lastvisiblepanel? this.defaultbuttonsfade : 1)
+ },
+
+ addnavbuttons:function(config, currentpanel){
+ config.$leftnavbutton=$('<img src="'+config.defaultbuttons.leftnav[0]+'">').css({zIndex:50, position:'absolute', left:config.offsets.left+config.defaultbuttons.leftnav[1]+'px', top:config.offsets.top+config.defaultbuttons.leftnav[2]+'px', cursor:'hand', cursor:'pointer'}).attr({title:'Back '+config.defaultbuttons.moveby+' panels'}).appendTo('body')
+ config.$rightnavbutton=$('<img src="'+config.defaultbuttons.rightnav[0]+'">').css({zIndex:50, position:'absolute', left:config.offsets.left+config.$gallery.get(0).offsetWidth+config.defaultbuttons.rightnav[1]+'px', top:config.offsets.top+config.defaultbuttons.rightnav[2]+'px', cursor:'hand', cursor:'pointer'}).attr({title:'Forward '+config.defaultbuttons.moveby+' panels'}).appendTo('body')
+ config.$leftnavbutton.bind('click', function(){ //assign nav button event handlers
+ stepcarousel.stepBy(config.galleryid, -config.defaultbuttons.moveby)
+ })
+ config.$rightnavbutton.bind('click', function(){ //assign nav button event handlers
+ stepcarousel.stepBy(config.galleryid, config.defaultbuttons.moveby)
+ })
+ if (config.panelbehavior.wraparound==false){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
+ this.fadebuttons(config, currentpanel)
+ }
+ },
+
+ alignpanels:function($, config){
+ var paneloffset=0
+ config.paneloffsets=[paneloffset] //array to store upper left offset of each panel (1st element=0)
+ config.panelwidths=[] //array to store widths of each panel
+ config.$panels.each(function(index){ //loop through panels
+ var $currentpanel=$(this)
+ $currentpanel.css({float: 'none', position: 'absolute', left: paneloffset+'px'}) //position panel
+ $currentpanel.bind('click', function(e){return config.onpanelclick(e.target)}) //bind onpanelclick() to onclick event
+ paneloffset+=stepcarousel.getCSSValue($currentpanel.css('marginRight')) + parseInt($currentpanel.get(0).offsetWidth || $currentpanel.css('width')) //calculate next panel offset
+ config.paneloffsets.push(paneloffset) //remember this offset
+ config.panelwidths.push(paneloffset-config.paneloffsets[config.paneloffsets.length-2]) //remember panel width
+ })
+ config.paneloffsets.pop() //delete last offset (redundant)
+ var addpanelwidths=0
+ var lastpanelindex=config.$panels.length-1
+ config.lastvisiblepanel=lastpanelindex
+ for (var i=config.$panels.length-1; i>=0; i--){
+ addpanelwidths+=(i==lastpanelindex? config.panelwidths[lastpanelindex] : config.paneloffsets[i+1]-config.paneloffsets[i])
+ if (config.gallerywidth>addpanelwidths){
+ config.lastvisiblepanel=i //calculate index of panel that when in 1st position reveals the very last panel all at once based on gallery width
+ }
+ }
+ config.$belt.css({width: paneloffset+'px'}) //Set Belt DIV to total panels' widths
+ config.currentpanel=(config.panelbehavior.persist)? parseInt(this.getCookie(window[config.galleryid+"persist"])) : 0 //determine 1st panel to show by default
+ config.currentpanel=(typeof config.currentpanel=="number" && config.currentpanel<config.$panels.length)? config.currentpanel : 0
+ if (config.currentpanel!=0){
+ var endpoint=config.paneloffsets[config.currentpanel]+(config.currentpanel==0? 0 : config.beltoffset)
+ config.$belt.css({left: -endpoint+'px'})
+ }
+ if (config.defaultbuttons.enable==true){ //if enable default back/forth nav buttons
+ this.addnavbuttons(config, config.currentpanel)
+ $(window).bind("load, resize", function(){ //refresh position of nav buttons when page loads/resizes, in case offsets weren't available document.oncontentload
+ config.offsets={left:stepcarousel.getoffset(config.$gallery.get(0), "offsetLeft"), top:stepcarousel.getoffset(config.$gallery.get(0), "offsetTop")}
+ config.$leftnavbutton.css({left:config.offsets.left+config.defaultbuttons.leftnav[1]+'px', top:config.offsets.top+config.defaultbuttons.leftnav[2]+'px'})
+ config.$rightnavbutton.css({left:config.offsets.left+config.$gallery.get(0).offsetWidth+config.defaultbuttons.rightnav[1]+'px', top:config.offsets.top+config.defaultbuttons.rightnav[2]+'px'})
+ })
+ }
+ this.statusreport(config.galleryid)
+ config.oninit()
+ config.onslideaction(this)
+ },
+
+ stepTo:function(galleryid, pindex){ /*User entered pindex starts at 1 for intuitiveness. Internally pindex still starts at 0 */
+ var config=stepcarousel.configholder[galleryid]
+ if (typeof config=="undefined"){
+ alert("There's an error with your set up of Carousel Viewer \""+galleryid+ "\"!")
+ return
+ }
+ var pindex=Math.min(pindex-1, config.paneloffsets.length-1)
+ var endpoint=config.paneloffsets[pindex]+(pindex==0? 0 : config.beltoffset)
+ if (config.panelbehavior.wraparound==false && config.defaultbuttons.enable==true){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
+ this.fadebuttons(config, pindex)
+ }
+ config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
+ config.currentpanel=pindex
+ this.statusreport(galleryid)
+ },
+
+ stepBy:function(galleryid, steps){
+ var config=stepcarousel.configholder[galleryid]
+ if (typeof config=="undefined"){
+ alert("There's an error with your set up of Carousel Viewer \""+galleryid+ "\"!")
+ return
+ }
+ var direction=(steps>0)? 'forward' : 'back' //If "steps" is negative, that means backwards
+ var pindex=config.currentpanel+steps //index of panel to stop at
+ if (config.panelbehavior.wraparound==false){ //if carousel viewer should stop at first or last panel (instead of wrap back or forth)
+ pindex=(direction=="back" && pindex<=0)? 0 : (direction=="forward")? Math.min(pindex, config.lastvisiblepanel) : pindex
+ if (config.defaultbuttons.enable==true){ //if default nav buttons are enabled, fade them in and out depending on if at start or end of carousel
+ stepcarousel.fadebuttons(config, pindex)
+ }
+ }
+ else{ //else, for normal stepBy behavior
+ pindex=(pindex>config.paneloffsets.length-1 || pindex<0 && pindex-steps>0)? 0 : (pindex<0)? config.paneloffsets.length+steps : pindex //take into account end or starting panel and step direction
+ }
+ var endpoint=config.paneloffsets[pindex]+(pindex==0? 0 : config.beltoffset) //left distance for Belt DIV to travel to
+ if (pindex==0 && direction=='forward' || config.currentpanel==0 && direction=='back' && config.panelbehavior.wraparound==true){ //decide whether to apply "push pull" effect
+ config.$belt.animate({left: -config.paneloffsets[config.currentpanel]-(direction=='forward'? 100 : -30)+'px'}, 'normal', function(){
+ config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
+ })
+ }
+ else
+ config.$belt.animate({left: -endpoint+'px'}, config.panelbehavior.speed, function(){config.onslideaction(this)})
+ config.currentpanel=pindex
+ this.statusreport(galleryid)
+ },
+
+ statusreport:function(galleryid){
+ var config=stepcarousel.configholder[galleryid]
+ var startpoint=config.currentpanel //index of first visible panel
+ var visiblewidth=0
+ for (var endpoint=startpoint; endpoint<config.paneloffsets.length; endpoint++){ //index (endpoint) of last visible panel
+ visiblewidth+=config.panelwidths[endpoint]
+ if (visiblewidth>config.gallerywidth){
+ break
+ }
+ }
+ startpoint+=1 //format startpoint for user friendiness
+ endpoint=(endpoint+1==startpoint)? startpoint : endpoint //If only one image visible on the screen and partially hidden, set endpoint to startpoint
+ var valuearray=[startpoint, endpoint, config.panelwidths.length]
+ for (var i=0; i<config.statusvars.length; i++){
+ window[config.statusvars[i]]=valuearray[i] //Define variable (with user specified name) and set to one of the status values
+ config.$statusobjs[i].text(valuearray[i]+" ") //Populate element on page with ID="user specified name" with one of the status values
+ }
+ },
+
+ setup:function(config){
+ //Disable Step Gallery scrollbars ASAP dynamically (enabled for sake of users with JS disabled)
+ document.write('<style type="text/css">\n#'+config.galleryid+'{overflow: hidden;}\n</style>')
+ jQuery(document).ready(function($){
+ config.$gallery=$('#'+config.galleryid)
+ config.gallerywidth=config.$gallery.width()
+ config.offsets={left:stepcarousel.getoffset(config.$gallery.get(0), "offsetLeft"), top:stepcarousel.getoffset(config.$gallery.get(0), "offsetTop")}
+ config.$belt=config.$gallery.find('.'+config.beltclass) //Find Belt DIV that contains all the panels
+ config.$panels=config.$gallery.find('.'+config.panelclass) //Find Panel DIVs that each contain a slide
+ config.onpanelclick=(typeof config.onpanelclick=="undefined")? function(target){} : config.onpanelclick //attach custom "onpanelclick" event handler
+ config.onslideaction=(typeof config.onslide=="undefined")? function(){} : function(beltobj){$(beltobj).stop(); config.onslide()} //attach custom "onslide" event handler
+ config.oninit=(typeof config.oninit=="undefined")? function(){} : config.oninit //attach custom "oninit" event handler
+ config.beltoffset=stepcarousel.getCSSValue(config.$belt.css('marginLeft')) //Find length of Belt DIV's left margin
+ config.statusvars=config.statusvars || [] //get variable names that will hold "start", "end", and "total" slides info
+ config.$statusobjs=[$('#'+config.statusvars[0]), $('#'+config.statusvars[1]), $('#'+config.statusvars[2])]
+ config.currentpanel=0
+ stepcarousel.configholder[config.galleryid]=config //store config parameter as a variable
+ if (config.contenttype[0]=="ajax" && typeof config.contenttype[1]!="undefined") //fetch ajax content?
+ stepcarousel.getremotepanels($, config)
+ else
+ stepcarousel.alignpanels($, config) //align panels and initialize gallery
+ }) //end document.ready
+ jQuery(window).bind('unload', function(){ //clean up
+ if (config.panelbehavior.persist){
+ stepcarousel.setCookie(window[config.galleryid+"persist"], config.currentpanel)
+ }
+ jQuery.each(config, function(ai, oi){
+ oi=null
+ })
+ config=null
+ })
+ }
+}
+
+