223 lines
11 KiB
JavaScript
223 lines
11 KiB
JavaScript
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//** Animated Collapsible DIV v2.0- (c) Dynamic Drive DHTML code library: http://www.dynamicdrive.com.
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//** May 24th, 08'- Script rewritten and updated to 2.0.
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//** June 4th, 08'- Version 2.01: Bug fix to work with jquery 1.2.6 (which changed the way attr() behaves).
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//** March 5th, 09'- Version 2.2, which adds the following:
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//1) ontoggle($, divobj, state) event that fires each time a DIV is expanded/collapsed, including when the page 1st loads
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//2) Ability to expand a DIV via a URL parameter string, ie: index.htm?expanddiv=jason or index.htm?expanddiv=jason,kelly
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//** March 9th, 09'- Version 2.2.1: Optimized ontoggle event handler slightly.
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//** July 3rd, 09'- Version 2.4, which adds the following:
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//1) You can now insert rel="expand[divid] | collapse[divid] | toggle[divid]" inside arbitrary links to act as DIV togglers
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//2) For image toggler links, you can insert the attributes "data-openimage" and "data-closedimage" to update its image based on the DIV state
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var animatedcollapse={
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divholders: {}, //structure: {div.id, div.attrs, div.$divref, div.$togglerimage}
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divgroups: {}, //structure: {groupname.count, groupname.lastactivedivid}
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lastactiveingroup: {}, //structure: {lastactivediv.id}
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preloadimages: [],
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show:function(divids){ //public method
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if (typeof divids=="object"){
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for (var i=0; i<divids.length; i++)
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this.showhide(divids[i], "show")
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}
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else
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this.showhide(divids, "show")
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},
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hide:function(divids){ //public method
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if (typeof divids=="object"){
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for (var i=0; i<divids.length; i++)
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this.showhide(divids[i], "hide")
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}
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else
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this.showhide(divids, "hide")
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},
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toggle:function(divid){ //public method
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if (typeof divid=="object")
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divid=divid[0]
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this.showhide(divid, "toggle")
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},
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addDiv:function(divid, attrstring){ //public function
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this.divholders[divid]=({id: divid, $divref: null, attrs: attrstring})
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this.divholders[divid].getAttr=function(name){ //assign getAttr() function to each divholder object
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var attr=new RegExp(name+"=([^,]+)", "i") //get name/value config pair (ie: width=400px,)
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return (attr.test(this.attrs) && parseInt(RegExp.$1)!=0)? RegExp.$1 : null //return value portion (string), or 0 (false) if none found
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}
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this.currentid=divid //keep track of current div object being manipulated (in the event of chaining)
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return this
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},
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showhide:function(divid, action){
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var $divref=this.divholders[divid].$divref //reference collapsible DIV
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if (this.divholders[divid] && $divref.length==1){ //if DIV exists
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var targetgroup=this.divgroups[$divref.attr('groupname')] //find out which group DIV belongs to (if any)
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if ($divref.attr('groupname') && targetgroup.count>1 && (action=="show" || action=="toggle" && $divref.css('display')=='none')){ //If current DIV belongs to a group
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if (targetgroup.lastactivedivid && targetgroup.lastactivedivid!=divid) //if last active DIV is set
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this.slideengine(targetgroup.lastactivedivid, 'hide') //hide last active DIV within group first
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this.slideengine(divid, 'show')
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targetgroup.lastactivedivid=divid //remember last active DIV
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}
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else{
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this.slideengine(divid, action)
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}
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}
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},
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slideengine:function(divid, action){
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var $divref=this.divholders[divid].$divref
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var $togglerimage=this.divholders[divid].$togglerimage
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if (this.divholders[divid] && $divref.length==1){ //if this DIV exists
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var animateSetting={height: action}
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if ($divref.attr('fade'))
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animateSetting.opacity=action
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$divref.animate(animateSetting, $divref.attr('speed')? parseInt($divref.attr('speed')) : 500, function(){
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if ($togglerimage){
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$togglerimage.attr('src', ($divref.css('display')=="none")? $togglerimage.data('srcs').closed : $togglerimage.data('srcs').open)
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}
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if (animatedcollapse.ontoggle){
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try{
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animatedcollapse.ontoggle(jQuery, $divref.get(0), $divref.css('display'))
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}
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catch(e){
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alert("An error exists inside your \"ontoggle\" function:\n\n"+e+"\n\nAborting execution of function.")
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}
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}
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})
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return false
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}
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},
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generatemap:function(){
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var map={}
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for (var i=0; i<arguments.length; i++){
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if (arguments[i][1]!=null){ //do not generate name/value pair if value is null
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map[arguments[i][0]]=arguments[i][1]
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}
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}
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return map
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},
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init:function(){
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var ac=this
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jQuery(document).ready(function($){
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animatedcollapse.ontoggle=animatedcollapse.ontoggle || null
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var urlparamopenids=animatedcollapse.urlparamselect() //Get div ids that should be expanded based on the url (['div1','div2',etc])
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var persistopenids=ac.getCookie('acopendivids') //Get list of div ids that should be expanded due to persistence ('div1,div2,etc')
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var groupswithpersist=ac.getCookie('acgroupswithpersist') //Get list of group names that have 1 or more divs with "persist" attribute defined
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if (persistopenids!=null) //if cookie isn't null (is null if first time page loads, and cookie hasnt been set yet)
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persistopenids=(persistopenids=='nada')? [] : persistopenids.split(',') //if no divs are persisted, set to empty array, else, array of div ids
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groupswithpersist=(groupswithpersist==null || groupswithpersist=='nada')? [] : groupswithpersist.split(',') //Get list of groups with divs that are persisted
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jQuery.each(ac.divholders, function(){ //loop through each collapsible DIV object
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this.$divref=$('#'+this.id)
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if ((this.getAttr('persist') || jQuery.inArray(this.getAttr('group'), groupswithpersist)!=-1) && persistopenids!=null){ //if this div carries a user "persist" setting, or belong to a group with at least one div that does
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var cssdisplay=(jQuery.inArray(this.id, persistopenids)!=-1)? 'block' : 'none'
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}
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else{
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var cssdisplay=this.getAttr('hide')? 'none' : null
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}
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if (urlparamopenids[0]=="all" || jQuery.inArray(this.id, urlparamopenids)!=-1){ //if url parameter string contains the single array element "all", or this div's ID
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cssdisplay='block' //set div to "block", overriding any other setting
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}
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else if (urlparamopenids[0]=="none"){
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cssdisplay='none' //set div to "none", overriding any other setting
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}
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this.$divref.css(ac.generatemap(['height', this.getAttr('height')], ['display', cssdisplay]))
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this.$divref.attr(ac.generatemap(['groupname', this.getAttr('group')], ['fade', this.getAttr('fade')], ['speed', this.getAttr('speed')]))
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if (this.getAttr('group')){ //if this DIV has the "group" attr defined
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var targetgroup=ac.divgroups[this.getAttr('group')] || (ac.divgroups[this.getAttr('group')]={}) //Get settings for this group, or if it no settings exist yet, create blank object to store them in
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targetgroup.count=(targetgroup.count||0)+1 //count # of DIVs within this group
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if (jQuery.inArray(this.id, urlparamopenids)!=-1){ //if url parameter string contains this div's ID
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targetgroup.lastactivedivid=this.id //remember this DIV as the last "active" DIV (this DIV will be expanded). Overrides other settings
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targetgroup.overridepersist=1 //Indicate to override persisted div that would have been expanded
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}
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if (!targetgroup.lastactivedivid && this.$divref.css('display')!='none' || cssdisplay=="block" && typeof targetgroup.overridepersist=="undefined") //if this DIV was open by default or should be open due to persistence
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targetgroup.lastactivedivid=this.id //remember this DIV as the last "active" DIV (this DIV will be expanded)
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this.$divref.css({display:'none'}) //hide any DIV that's part of said group for now
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}
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}) //end divholders.each
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jQuery.each(ac.divgroups, function(){ //loop through each group
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if (this.lastactivedivid && urlparamopenids[0]!="none") //show last "active" DIV within each group (one that should be expanded), unless url param="none"
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ac.divholders[this.lastactivedivid].$divref.show()
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})
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if (animatedcollapse.ontoggle){
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jQuery.each(ac.divholders, function(){ //loop through each collapsible DIV object and fire ontoggle event
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animatedcollapse.ontoggle(jQuery, this.$divref.get(0), this.$divref.css('display'))
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})
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}
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//Parse page for links containing rel attribute
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var $allcontrols=$('a[rel]').filter('[rel^="collapse["], [rel^="expand["], [rel^="toggle["]') //get all elements on page with rel="collapse[]", "expand[]" and "toggle[]"
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$allcontrols.each(function(){ //loop though each control link
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this._divids=this.getAttribute('rel').replace(/(^\w+)|(\s+)/g, "").replace(/[\[\]']/g, "") //cache value 'div1,div2,etc' within identifier[div1,div2,etc]
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if (this.getElementsByTagName('img').length==1 && ac.divholders[this._divids]){ //if control is an image link that toggles a single DIV (must be one to one to update status image)
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animatedcollapse.preloadimage(this.getAttribute('data-openimage'), this.getAttribute('data-closedimage')) //preload control images (if defined)
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$togglerimage=$(this).find('img').eq(0).data('srcs', {open:this.getAttribute('data-openimage'), closed:this.getAttribute('data-closedimage')}) //remember open and closed images' paths
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ac.divholders[this._divids].$togglerimage=$(this).find('img').eq(0) //save reference to toggler image (to be updated inside slideengine()
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ac.divholders[this._divids].$togglerimage.attr('src', (ac.divholders[this._divids].$divref.css('display')=="none")? $togglerimage.data('srcs').closed : $togglerimage.data('srcs').open)
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}
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$(this).click(function(){ //assign click behavior to each control link
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var relattr=this.getAttribute('rel')
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var divids=(this._divids=="")? [] : this._divids.split(',') //convert 'div1,div2,etc' to array
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if (divids.length>0){
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animatedcollapse[/expand/i.test(relattr)? 'show' : /collapse/i.test(relattr)? 'hide' : 'toggle'](divids) //call corresponding public function
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return false
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}
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}) //end control.click
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})// end control.each
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$(window).bind('unload', function(){
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ac.uninit()
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})
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}) //end doc.ready()
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},
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uninit:function(){
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var opendivids='', groupswithpersist=''
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jQuery.each(this.divholders, function(){
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if (this.$divref.css('display')!='none'){
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opendivids+=this.id+',' //store ids of DIVs that are expanded when page unloads: 'div1,div2,etc'
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}
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if (this.getAttr('group') && this.getAttr('persist'))
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groupswithpersist+=this.getAttr('group')+',' //store groups with which at least one DIV has persistance enabled: 'group1,group2,etc'
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})
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opendivids=(opendivids=='')? 'nada' : opendivids.replace(/,$/, '')
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groupswithpersist=(groupswithpersist=='')? 'nada' : groupswithpersist.replace(/,$/, '')
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this.setCookie('acopendivids', opendivids)
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this.setCookie('acgroupswithpersist', groupswithpersist)
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},
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getCookie:function(Name){
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var re=new RegExp(Name+"=[^;]*", "i"); //construct RE to search for target name/value pair
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if (document.cookie.match(re)) //if cookie found
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return document.cookie.match(re)[0].split("=")[1] //return its value
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return null
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},
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setCookie:function(name, value, days){
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if (typeof days!="undefined"){ //if set persistent cookie
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var expireDate = new Date()
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expireDate.setDate(expireDate.getDate()+days)
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document.cookie = name+"="+value+"; path=/; expires="+expireDate.toGMTString()
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}
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else //else if this is a session only cookie
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document.cookie = name+"="+value+"; path=/"
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},
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urlparamselect:function(){
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window.location.search.match(/expanddiv=([\w\-_,]+)/i) //search for expanddiv=divid or divid1,divid2,etc
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return (RegExp.$1!="")? RegExp.$1.split(",") : []
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},
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preloadimage:function(){
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var preloadimages=this.preloadimages
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for (var i=0; i<arguments.length; i++){
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if (arguments[i] && arguments[i].length>0){
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preloadimages[preloadimages.length]=new Image()
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preloadimages[preloadimages.length-1].src=arguments[i]
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}
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}
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}
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}
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