551 lines
16 KiB
JavaScript
551 lines
16 KiB
JavaScript
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dojo.provide("dojox.widget.Pager");
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dojo.experimental("dojox.widget.Pager");
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dojo.require("dijit._Widget");
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dojo.require("dijit._Templated");
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dojo.require("dojo.fx");
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dojo.declare("dojox.widget.Pager",
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[dijit._Widget, dijit._Templated],
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{
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// summary: A Pager, displaying a list of sized nodes
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templatePath: dojo.moduleUrl("dojox.widget", "Pager/Pager.html"),
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/*=====
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// iconPrevious: String?
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// The url of the previous page icon
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iconPrevious: "",
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// iconNext: String?
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// The url of the next page icon
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iconNext: "",
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=====*/
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iconPage: dojo.moduleUrl("dojox.widget", "Pager/images/pageInactive.png"),
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iconPageActive: dojo.moduleUrl("dojox.widget", "Pager/images/pageActive.png"),
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// store: Object
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// A dojo.data Data store
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store: null, // data store for items
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// orientation: String
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// Either "horizontal or "vertical" to define the direction the pages will slide
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orientation: "horizontal", // or vertical
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// statusPos: String
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// A string describing where to put the Pager "current page" indicator. Options are
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// "leading" or "trailing". In the case of horiztonal orientation, "leading" indicates
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// positioned above the PageItems. In the case of vertical, "leading" indicates "before".
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statusPos: "leading",
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// pagerPos: String
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// TODOC
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pagerPos: "center",
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// duration: Integer
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// Time in milliseconds to transition the pages
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duration: 500,
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// itemSpace: Integer
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// Spacing between items? TODOC
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itemSpace: 2,
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// resizeChildren: Boolean
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// TODOC
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resizeChildren: true,
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// itemClass: String
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// The full dotted named of a Class to use for the internal Pager Items.
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itemClass: "dojox.widget._PagerItem",
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// itemsPage: Integer
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// The numbers of items to display in each "Page"
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itemsPage: 3,
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postMixInProperties: function(){
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var h = (this.orientation == "horizontal");
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dojo.mixin(this,{
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_totalPages:0,
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_currentPage:1,
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dirClass: "pager" + (h ? "Horizontal" : "Vertical"),
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iconNext: dojo.moduleUrl("dojox.widget", "Pager/images/" + (h ? "h" : "v") + "Next.png"),
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iconPrevious: dojo.moduleUrl("dojox.widget", "Pager/images/" + (h ? "h" : "v") + "Previous.png")
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});
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},
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postCreate: function(){
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this.inherited(arguments);
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//this.connect(this.domNode,"onkeypress","_handleKey");
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this.store.fetch({
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onComplete: dojo.hitch(this, "_init")
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});
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},
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_a11yStyle: function(e){
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// summary: top level onfocus/onblur listen to set a class "pagerFocus" on some node
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// and remove it onblur
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dojo[(e.type == "focus" ? "addClass" : "removeClass")](e.target,"pagerFocus");
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},
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_handleKey: function(e){
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// summary: Handle keyboard navigation internally
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var dk = dojo.keys;
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var key = (e.charCode == dk.SPACE ? dk.SPACE : e.keyCode);
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switch(key){
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case dk.UP_ARROW:
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case dk.RIGHT_ARROW:
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case 110:
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case 78: // key "n"
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e.preventDefault();
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this._pagerNext();
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break;
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case dk.DOWN_ARROW:
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case dk.LEFT_ARROW:
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case 112:
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case 80: // key "p"
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e.preventDefault();
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this._pagerPrevious();
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break;
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case dk.ENTER:
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switch(e.target){
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case this.pagerNext : this._pagerNext(); break;
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case this.pagerPrevious : this._pagerPrevious(); break;
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}
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break;
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}
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},
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_init: function(items) {
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this.items = items;
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this._renderPages();
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this._renderStatus();
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this._renderPager();
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},
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_renderPages: function(){
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var pcv = this.pagerContainerView;
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var _h = (this.orientation == "horizontal");
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var style = dojo.style;
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if(_h){
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var pagerH = dojo.marginBox(this.pagerContainerPager).h;
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var statusH = dojo.marginBox(this.pagerContainerStatus).h;
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if (this.pagerPos != 'center'){
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var addonHeight = pagerH+statusH;
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}else{
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var addonHeight = statusH;
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var widthSub = this.pagerIconNext.width;
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var containerWidth = style(pcv, 'width');
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var newWidth = containerWidth-(2*widthSub);
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style(pcv, {
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width: newWidth+'px',
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marginLeft: this.pagerIconNext.width+'px',
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marginRight: this.pagerIconNext.width+'px'
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});
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}
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var totalH = style(this.pagerContainer, 'height') - addonHeight;
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style(this.pagerContainerView, 'height', totalH+'px');
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var itemSpace = Math.floor(style(pcv, 'width') / this.itemsPage);
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if(this.statusPos == 'trailing'){
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if(this.pagerPos != 'center'){
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style(pcv, 'marginTop', pagerH+'px');
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}
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style(pcv, 'marginBottom', statusH+'px');
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}else{
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style(pcv, 'marginTop', statusH+'px');
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if (this.pagerPos != 'center'){
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style(pcv, 'marginTop', pagerH+'px');
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}
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}
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}else{
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var pagerW = dojo.marginBox(this.pagerContainerPager).w;
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var statusW = dojo.marginBox(this.pagerContainerStatus).w;
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var containerW = style(this.pagerContainer, 'width');
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if(this.pagerPos != 'center'){
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var addonWidth = pagerW + statusW;
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}else{
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var addonWidth = statusW;
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var heightSub = this.pagerIconNext.height;
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var containerHeight = style(pcv, 'height');
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var newHeight = containerHeight - (2 * heightSub);
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style(pcv,{
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height: newHeight+'px',
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marginTop: this.pagerIconNext.height+'px',
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marginBottom: this.pagerIconNext.height+'px'
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});
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}
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var totalW = style(this.pagerContainer, 'width') - addonWidth;
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style(pcv, 'width', totalW+'px');
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var itemSpace = Math.floor(style(pcv, 'height') / this.itemsPage);
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if(this.statusPos == 'trailing'){
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if (this.pagerPos != 'center'){
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style(pcv, 'marginLeft', pagerW + 'px');
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}
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style(pcv, 'marginRight', statusW + 'px');
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}else{
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style(pcv, 'marginLeft', statusW + 'px');
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if(this.pagerPos != 'center'){
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style(pcv, 'marginRight', pagerW+'px');
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}
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}
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}
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var _PagerItem = dojo.getObject(this.itemClass);
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var paddingLead = "padding" + (_h ? "Left" : "Top");
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var paddingTrail = "padding" + (_h ? "Right" : "Bottom");
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dojo.forEach(this.items, function(item, cnt){
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var contentContainer = dojo.create('div', {
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innerHTML: item.content
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});
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var pagerItem = new _PagerItem({
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id: this.id + '-item-' + (cnt + 1)
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}, contentContainer);
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this.pagerItems.appendChild(pagerItem.domNode);
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var containerProps = {};
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containerProps[(_h ? "width" : "height")] = (itemSpace - this.itemSpace) + "px";
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var p = (_h ? "height" : "width");
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containerProps[p] = style(pcv, p) + "px";
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style(pagerItem.containerNode, containerProps);
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if(this.resizeChildren){
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pagerItem.resizeChildren();
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}
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pagerItem.parseChildren();
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// only display amount of items as defined in itemsPage
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style(pagerItem.domNode, "position", "absolute");
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if (cnt < this.itemsPage){
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var pos = (cnt) * itemSpace;
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var trailingDir = (_h ? "left" : "top");
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var dir = (_h ? "top" : "left");
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style(pagerItem.domNode, dir, "0px");
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style(pagerItem.domNode, trailingDir, pos+"px");
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}else{
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style(pagerItem.domNode, "top", "-1000px");
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style(pagerItem.domNode, "left", "-1000px");
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}
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style(pagerItem.domNode, paddingTrail, (this.itemSpace/2)+"px");
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style(pagerItem.domNode, paddingLead, (this.itemSpace/2)+"px");
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}, this);
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},
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_renderPager: function() {
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var tcp = this.pagerContainerPager;
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var zero = "0px";
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var _h = (this.orientation == "horizontal");
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if(_h){
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if(this.statusPos == 'center'){
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}else if (this.statusPos == 'trailing'){
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dojo.style(tcp, 'top', zero);
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}else{
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dojo.style(tcp, 'bottom', zero);
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}
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dojo.style(this.pagerNext, 'right', zero);
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dojo.style(this.pagerPrevious, 'left', zero);
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}else{
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if (this.statusPos == 'trailing'){
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dojo.style(tcp, 'left', zero);
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}else{
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dojo.style(tcp, 'right', zero);
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}
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dojo.style(this.pagerNext, 'bottom', zero);
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dojo.style(this.pagerPrevious, 'top', zero);
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}
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},
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_renderStatus: function() {
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this._totalPages = Math.ceil(this.items.length / this.itemsPage);
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// FIXME!!
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this.iconWidth = 0;
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this.iconHeight = 0;
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this.iconsLoaded = 0;
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this._iconConnects = [];
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for (var i = 1; i <= this._totalPages; i++){
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var icon = new Image();
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var pointer = i;
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dojo.connect(icon, 'onclick', dojo.hitch(this, function(pointer) {
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this._pagerSkip(pointer);
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}, pointer));
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this._iconConnects[pointer] = dojo.connect(icon, 'onload', dojo.hitch(this,function(pointer){
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this.iconWidth += icon.width;
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this.iconHeight += icon.height;
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this.iconsLoaded++;
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if (this._totalPages == this.iconsLoaded){
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if (this.orientation == "horizontal"){
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if (this.statusPos == 'trailing'){
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if (this.pagerPos == 'center'){
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var containerHeight = dojo.style(this.pagerContainer, 'height');
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var statusHeight = dojo.style(this.pagerContainerStatus, 'height');
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dojo.style(this.pagerContainerPager, 'top', ((containerHeight/2)-(statusHeight/2))+'px');
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}
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dojo.style(this.pagerContainerStatus, 'bottom', '0px');
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}else{
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if (this.pagerPos == 'center'){
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var containerHeight = dojo.style(this.pagerContainer, 'height');
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var statusHeight = dojo.style(this.pagerContainerStatus, 'height');
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dojo.style(this.pagerContainerPager, 'bottom', ((containerHeight/2)-(statusHeight/2))+'px');
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}
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dojo.style(this.pagerContainerStatus, 'top', '0px');
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}
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var position = (dojo.style(this.pagerContainer, 'width')/2)-(this.iconWidth/2);
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dojo.style(this.pagerContainerStatus, 'paddingLeft', position+'px');
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}else{
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if (this.statusPos == 'trailing'){
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if (this.pagerPos == 'center'){
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var containerWidth = dojo.style(this.pagerContainer, 'width');
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var statusWidth = dojo.style(this.pagerContainerStatus, 'width');
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dojo.style(this.pagerContainerPager, 'left', ((containerWidth/2)-(statusWidth/2))+'px');
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}
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dojo.style(this.pagerContainerStatus, 'right', '0px');
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}else{
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if (this.pagerPos == 'center'){
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var containerWidth = dojo.style(this.pagerContainer, 'width');
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var statusWidth = dojo.style(this.pagerContainerStatus, 'width');
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dojo.style(this.pagerContainerPager, 'right', ((containerWidth/2)-(statusWidth/2))+'px');
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}
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dojo.style(this.pagerContainerStatus, 'left', '0px');
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}
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var position = (dojo.style(this.pagerContainer, 'height')/2)-(this.iconHeight/2);
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dojo.style(this.pagerContainerStatus, 'paddingTop', position+'px');
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}
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}
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dojo.disconnect(this._iconConnects[pointer]);
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}, pointer));
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if (i==this._currentPage){
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icon.src=this.iconPageActive;
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}else{
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icon.src=this.iconPage;
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}
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var pointer = i;
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dojo.addClass(icon, this.orientation+'PagerIcon');
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dojo.attr(icon, 'id', this.id+'-status-'+i);
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this.pagerContainerStatus.appendChild(icon);
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if (this.orientation == "vertical"){
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dojo.style(icon, 'display', 'block');
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}
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}
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},
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_pagerSkip: function(page){
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if (this._currentPage == page){
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return;
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}else{
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// calculate whether to go left or right, take shortest way
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var distanceP; var distanceN;
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|
if (page < this._currentPage){
|
||
|
|
distanceP = this._currentPage - page;
|
||
|
|
distanceN = (this._totalPages + page) - this._currentPage;
|
||
|
|
}else{
|
||
|
|
distanceP = (this._totalPages + this._currentPage) - page;
|
||
|
|
distanceN = page - this._currentPage;
|
||
|
|
}
|
||
|
|
|
||
|
|
var b = (distanceN > distanceP);
|
||
|
|
this._toScroll = (b ? distanceP : distanceN);
|
||
|
|
var cmd = (b ? "_pagerPrevious" : "_pagerNext");
|
||
|
|
var connect = this.connect(this, "onScrollEnd", function(){
|
||
|
|
this._toScroll--;
|
||
|
|
if(this._toScroll < 1){
|
||
|
|
this.disconnect(connect);
|
||
|
|
}else{
|
||
|
|
this[cmd]();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
this[cmd]();
|
||
|
|
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
_pagerNext: function(){
|
||
|
|
if(this._anim) return;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* fade slide out current items
|
||
|
|
* make sure that next items are ligned up nicely before sliding them in
|
||
|
|
*/
|
||
|
|
var _anims = [];
|
||
|
|
for (var i = this._currentPage * this.itemsPage; i > (this._currentPage - 1) * this.itemsPage; i--){
|
||
|
|
if (!dojo.byId(this.id+'-item-'+i)) continue;
|
||
|
|
|
||
|
|
var currentItem = dojo.byId(this.id+'-item-'+i);
|
||
|
|
var marginBox = dojo.marginBox(currentItem);
|
||
|
|
if (this.orientation == "horizontal") {
|
||
|
|
var move = marginBox.l - (this.itemsPage * marginBox.w);
|
||
|
|
_anims.push(dojo.fx.slideTo({node: currentItem, left: move, duration: this.duration}));
|
||
|
|
}else{
|
||
|
|
var move = marginBox.t - (this.itemsPage * marginBox.h);
|
||
|
|
_anims.push(dojo.fx.slideTo({node: currentItem, top: move, duration: this.duration}));
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
var previousPage = this._currentPage;
|
||
|
|
if (this._currentPage == this._totalPages){
|
||
|
|
this._currentPage = 1;
|
||
|
|
}else{
|
||
|
|
this._currentPage++;
|
||
|
|
}
|
||
|
|
|
||
|
|
var cnt = this.itemsPage;
|
||
|
|
for (var i=this._currentPage*this.itemsPage; i>(this._currentPage-1)*this.itemsPage; i--){
|
||
|
|
if (dojo.byId(this.id+'-item-'+i)){
|
||
|
|
var currentItem = dojo.byId(this.id+'-item-'+i);
|
||
|
|
var marginBox = dojo.marginBox(currentItem);
|
||
|
|
if (this.orientation == "horizontal") {
|
||
|
|
var newPos = (dojo.style(this.pagerContainerView, 'width')+((cnt-1)*marginBox.w))-1;
|
||
|
|
dojo.style(currentItem, 'left', newPos+'px');
|
||
|
|
dojo.style(currentItem, 'top', '0px');
|
||
|
|
|
||
|
|
var move = newPos-(this.itemsPage*marginBox.w);
|
||
|
|
_anims.push(dojo.fx.slideTo({node: currentItem, left: move, duration: this.duration}));
|
||
|
|
}else{
|
||
|
|
newPos = (dojo.style(this.pagerContainerView, 'height')+((cnt-1)*marginBox.h))-1;
|
||
|
|
dojo.style(currentItem, 'top', newPos+'px');
|
||
|
|
dojo.style(currentItem, 'left', '0px');
|
||
|
|
|
||
|
|
var move = newPos-(this.itemsPage*marginBox.h);
|
||
|
|
_anims.push(dojo.fx.slideTo({ node: currentItem, top: move, duration: this.duration}));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
cnt--;
|
||
|
|
}
|
||
|
|
|
||
|
|
this._anim = dojo.fx.combine(_anims);
|
||
|
|
var animConnect = this.connect(this._anim, "onEnd", function(){
|
||
|
|
delete this._anim;
|
||
|
|
this.onScrollEnd();
|
||
|
|
this.disconnect(animConnect);
|
||
|
|
});
|
||
|
|
this._anim.play();
|
||
|
|
|
||
|
|
// set pager icons
|
||
|
|
dojo.byId(this.id+'-status-'+previousPage).src = this.iconPage;
|
||
|
|
dojo.byId(this.id+'-status-'+this._currentPage).src = this.iconPageActive;
|
||
|
|
},
|
||
|
|
|
||
|
|
_pagerPrevious: function(){
|
||
|
|
if(this._anim) return;
|
||
|
|
|
||
|
|
var _anims = [];
|
||
|
|
for (var i=this._currentPage*this.itemsPage; i>(this._currentPage-1)*this.itemsPage; i--){
|
||
|
|
if (!dojo.byId(this.id+'-item-'+i)) continue;
|
||
|
|
|
||
|
|
var currentItem = dojo.byId(this.id+'-item-'+i);
|
||
|
|
var marginBox = dojo.marginBox(currentItem);
|
||
|
|
if (this.orientation == "horizontal") {
|
||
|
|
var move = dojo.style(currentItem, 'left')+(this.itemsPage*marginBox.w);
|
||
|
|
_anims.push(dojo.fx.slideTo({node: currentItem, left: move, duration: this.duration}));
|
||
|
|
}else{
|
||
|
|
var move = dojo.style(currentItem, 'top')+(this.itemsPage*marginBox.h);
|
||
|
|
_anims.push(dojo.fx.slideTo({node: currentItem, top: move, duration: this.duration}));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var previousPage = this._currentPage;
|
||
|
|
if (this._currentPage == 1){
|
||
|
|
this._currentPage = this._totalPages;
|
||
|
|
}else{
|
||
|
|
this._currentPage--;
|
||
|
|
}
|
||
|
|
|
||
|
|
var cnt = this.itemsPage;
|
||
|
|
var j=1;
|
||
|
|
for (var i=this._currentPage*this.itemsPage; i>(this._currentPage-1)*this.itemsPage; i--){
|
||
|
|
if(dojo.byId(this.id+'-item-'+i)){
|
||
|
|
var currentItem = dojo.byId(this.id+'-item-'+i);
|
||
|
|
var marginBox = dojo.marginBox(currentItem);
|
||
|
|
|
||
|
|
if (this.orientation == "horizontal") {
|
||
|
|
var newPos = -(j * marginBox.w) + 1;
|
||
|
|
dojo.style(currentItem, 'left', newPos+'px');
|
||
|
|
dojo.style(currentItem, 'top', '0px');
|
||
|
|
|
||
|
|
var move = ((cnt - 1) * marginBox.w);
|
||
|
|
_anims.push(dojo.fx.slideTo({node: currentItem, left: move, duration: this.duration}));
|
||
|
|
|
||
|
|
var move = newPos+(this.itemsPage * marginBox.w);
|
||
|
|
_anims.push(dojo.fx.slideTo({node: currentItem, left: move, duration: this.duration}));
|
||
|
|
}else{
|
||
|
|
newPos = -((j * marginBox.h) + 1);
|
||
|
|
dojo.style(currentItem, 'top', newPos+'px');
|
||
|
|
dojo.style(currentItem, 'left', '0px');
|
||
|
|
|
||
|
|
var move = ((cnt - 1) * marginBox.h);
|
||
|
|
_anims.push(dojo.fx.slideTo({node: currentItem, top: move, duration: this.duration}));
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
cnt--;
|
||
|
|
j++;
|
||
|
|
}
|
||
|
|
|
||
|
|
this._anim = dojo.fx.combine(_anims);
|
||
|
|
var animConnect = dojo.connect(this._anim, "onEnd", dojo.hitch(this, function(){
|
||
|
|
delete this._anim;
|
||
|
|
this.onScrollEnd();
|
||
|
|
dojo.disconnect(animConnect);
|
||
|
|
}));
|
||
|
|
this._anim.play();
|
||
|
|
|
||
|
|
// set pager icons
|
||
|
|
dojo.byId(this.id + '-status-' + previousPage).src = this.iconPage;
|
||
|
|
dojo.byId(this.id + '-status-' + this._currentPage).src = this.iconPageActive;
|
||
|
|
|
||
|
|
},
|
||
|
|
|
||
|
|
onScrollEnd: function(){
|
||
|
|
// summary: Stub Function. Fired after the slide is complete. Override or connect.
|
||
|
|
}
|
||
|
|
|
||
|
|
});
|
||
|
|
|
||
|
|
dojo.declare("dojox.widget._PagerItem",
|
||
|
|
[dijit._Widget, dijit._Templated],
|
||
|
|
{
|
||
|
|
|
||
|
|
templateString: '<li class="pagerItem" dojoAttachPoint="containerNode"></li>',
|
||
|
|
|
||
|
|
resizeChildren: function(){
|
||
|
|
var box = dojo.marginBox(this.containerNode);
|
||
|
|
dojo.style(this.containerNode.firstChild, {
|
||
|
|
width: box.w +'px',
|
||
|
|
height: box.h + 'px'
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
parseChildren: function(){
|
||
|
|
dojo.parser.parse(this.containerNode);
|
||
|
|
}
|
||
|
|
});
|