var Spry
if (!Spry) Spry = {}
if (!Spry.Widget) Spry.Widget = {}
Spry.Widget.TabbedPanels = function(element, opts)
{
this.element = this.getElement(element)
this.defaultTab = 0
this.bindings = []
this.tabSelectedClass = "TabbedPanelsTabSelected"
this.tabHoverClass = "TabbedPanelsTabHover"
this.tabFocusedClass = "TabbedPanelsTabFocused"
this.panelVisibleClass = "TabbedPanelsContentVisible"
this.focusElement = null
this.hasFocus = false
this.currentTabIndex = 0
this.enableKeyboardNavigation = true
Spry.Widget.TabbedPanels.setOptions(this, opts)
if (typeof (this.defaultTab) == "number")
{
if (this.defaultTab < 0)
this.defaultTab = 0
else
{
var count = this.getTabbedPanelCount()
if (this.defaultTab >= count)
this.defaultTab = (count > 1) ? (count - 1) : 0
}
this.defaultTab = this.getTabs()[this.defaultTab]
}
if (this.defaultTab)
this.defaultTab = this.getElement(this.defaultTab)
this.attachBehaviors()
}
Spry.Widget.TabbedPanels.prototype.getElement = function(ele)
{
if (ele && typeof ele == "string")
return document.getElementById(ele)
return ele
}
Spry.Widget.TabbedPanels.prototype.getElementChildren = function(element)
{
var children = []
var child = element.firstChild
while (child)
{
if (child.nodeType == 1 /* Node.ELEMENT_NODE */)
children.push(child)
child = child.nextSibling
}
return children
}
Spry.Widget.TabbedPanels.prototype.addClassName = function(ele, className)
{
if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) != -1))
return
ele.className += (ele.className ? " " : "") + className
}
Spry.Widget.TabbedPanels.prototype.removeClassName = function(ele, className)
{
if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) == -1))
return
ele.className = ele.className.replace(new RegExp("\\s*\\b" + className + "\\b", "g"), "")
}
Spry.Widget.TabbedPanels.setOptions = function(obj, optionsObj, ignoreUndefinedProps)
{
if (!optionsObj)
return
for (var optionName in optionsObj)
{
if (ignoreUndefinedProps && optionsObj[optionName] == undefined)
continue
obj[optionName] = optionsObj[optionName]
}
}
Spry.Widget.TabbedPanels.prototype.getTabGroup = function()
{
if (this.element)
{
var children = this.getElementChildren(this.element)
if (children.length)
return children[0]
}
return null
}
Spry.Widget.TabbedPanels.prototype.getTabs = function()
{
var tabs = []
var tg = this.getTabGroup()
if (tg)
tabs = this.getElementChildren(tg)
return tabs
}
Spry.Widget.TabbedPanels.prototype.getContentPanelGroup = function()
{
if (this.element)
{
var children = this.getElementChildren(this.element)
if (children.length > 1)
return children[1]
}
return null
}
Spry.Widget.TabbedPanels.prototype.getContentPanels = function()
{
var panels = []
var pg = this.getContentPanelGroup()
if (pg)
panels = this.getElementChildren(pg)
return panels
}
Spry.Widget.TabbedPanels.prototype.getIndex = function(ele, arr)
{
ele = this.getElement(ele)
if (ele && arr && arr.length)
{
for (var i = 0; i < arr.length; i++)
{
if (ele == arr[i])
return i
}
}
return -1
}
Spry.Widget.TabbedPanels.prototype.getTabIndex = function(ele)
{
var i = this.getIndex(ele, this.getTabs())
if (i < 0)
i = this.getIndex(ele, this.getContentPanels())
return i
}
Spry.Widget.TabbedPanels.prototype.getCurrentTabIndex = function()
{
return this.currentTabIndex
}
Spry.Widget.TabbedPanels.prototype.getTabbedPanelCount = function(ele)
{
return Math.min(this.getTabs().length, this.getContentPanels().length)
}
Spry.Widget.TabbedPanels.addEventListener = function(element, eventType, handler, capture)
{
try
{
if (element.addEventListener)
element.addEventListener(eventType, handler, capture)
else if (element.attachEvent)
element.attachEvent("on" + eventType, handler)
}
catch (e) {}
}
Spry.Widget.TabbedPanels.prototype.onTabClick = function(e, tab)
{
this.showPanel(tab)
}
Spry.Widget.TabbedPanels.prototype.onTabMouseOver = function(e, tab)
{
this.addClassName(tab, this.tabHoverClass)
}
Spry.Widget.TabbedPanels.prototype.onTabMouseOut = function(e, tab)
{
this.removeClassName(tab, this.tabHoverClass)
}
Spry.Widget.TabbedPanels.prototype.onTabFocus = function(e, tab)
{
this.hasFocus = true
this.addClassName(this.element, this.tabFocusedClass)
}
Spry.Widget.TabbedPanels.prototype.onTabBlur = function(e, tab)
{
this.hasFocus = false
this.removeClassName(this.element, this.tabFocusedClass)
}
Spry.Widget.TabbedPanels.ENTER_KEY = 13
Spry.Widget.TabbedPanels.SPACE_KEY = 32
Spry.Widget.TabbedPanels.prototype.onTabKeyDown = function(e, tab)
{
var key = e.keyCode
if (!this.hasFocus || (key != Spry.Widget.TabbedPanels.ENTER_KEY && key != Spry.Widget.TabbedPanels.SPACE_KEY))
return true
this.showPanel(tab)
if (e.stopPropagation)
e.stopPropagation()
if (e.preventDefault)
e.preventDefault()
return false
}
Spry.Widget.TabbedPanels.prototype.preorderTraversal = function(root, func)
{
var stopTraversal = false
if (root)
{
stopTraversal = func(root)
if (root.hasChildNodes())
{
var child = root.firstChild
while (!stopTraversal && child)
{
stopTraversal = this.preorderTraversal(child, func)
try { child = child.nextSibling; } catch (e) { child = null; }
}
}
}
return stopTraversal
}
Spry.Widget.TabbedPanels.prototype.addPanelEventListeners = function(tab, panel)
{
var self = this
Spry.Widget.TabbedPanels.addEventListener(tab, "click", function(e) { return self.onTabClick(e, tab); }, false)
Spry.Widget.TabbedPanels.addEventListener(tab, "mouseover", function(e) { return self.onTabMouseOver(e, tab); }, false)
Spry.Widget.TabbedPanels.addEventListener(tab, "mouseout", function(e) { return self.onTabMouseOut(e, tab); }, false)
if (this.enableKeyboardNavigation)
{	
var tabIndexEle = null
var tabAnchorEle = null
this.preorderTraversal(tab, function(node) {
if (node.nodeType == 1 /* NODE.ELEMENT_NODE */)
{
var tabIndexAttr = tab.attributes.getNamedItem("tabindex")
if (tabIndexAttr)
{
tabIndexEle = node
return true
}
if (!tabAnchorEle && node.nodeName.toLowerCase() == "a")
tabAnchorEle = node
}
return false
})
if (tabIndexEle)
this.focusElement = tabIndexEle
else if (tabAnchorEle)
this.focusElement = tabAnchorEle
if (this.focusElement)
{
Spry.Widget.TabbedPanels.addEventListener(this.focusElement, "focus", function(e) { return self.onTabFocus(e, tab); }, false)
Spry.Widget.TabbedPanels.addEventListener(this.focusElement, "blur", function(e) { return self.onTabBlur(e, tab); }, false)
Spry.Widget.TabbedPanels.addEventListener(this.focusElement, "keydown", function(e) { return self.onTabKeyDown(e, tab); }, false)
}
}
}
Spry.Widget.TabbedPanels.prototype.showPanel = function(elementOrIndex)
{
var tpIndex = -1
if (typeof elementOrIndex == "number")
tpIndex = elementOrIndex
else
tpIndex = this.getTabIndex(elementOrIndex)
if (!tpIndex < 0 || tpIndex >= this.getTabbedPanelCount())
return
var tabs = this.getTabs()
var panels = this.getContentPanels()
var numTabbedPanels = Math.max(tabs.length, panels.length)
for (var i = 0; i < numTabbedPanels; i++)
{
if (i != tpIndex)
{
if (tabs[i])
this.removeClassName(tabs[i], this.tabSelectedClass)
if (panels[i])
{
this.removeClassName(panels[i], this.panelVisibleClass)
panels[i].style.display = "none"
}
}
}
this.addClassName(tabs[tpIndex], this.tabSelectedClass)
this.addClassName(panels[tpIndex], this.panelVisibleClass)
panels[tpIndex].style.display = "block"
this.currentTabIndex = tpIndex
}
Spry.Widget.TabbedPanels.prototype.attachBehaviors = function(element)
{
var tabs = this.getTabs()
var panels = this.getContentPanels()
var panelCount = this.getTabbedPanelCount()
for (var i = 0; i < panelCount; i++)
this.addPanelEventListeners(tabs[i], panels[i])
this.showPanel(this.defaultTab)
}