sábado, 13 de agosto de 2011

// SpryTabbedPanels.js - version 0.6 - Spry Pre-Release 1.6.1
//
// Copyright (c) 2006. Adobe Systems Incorporated.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of Adobe Systems Incorporated nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

var Spry;
if (!Spry) Spry = {};
if (!Spry.Widget) Spry.Widget = {};

Spry.Widget.TabbedPanels = function(element, opts)
{
this.element = this.getElement(element);
this.defaultTab = 0; // Show the first panel by default.
this.tabSelectedClass = "TabbedPanelsTabSelected";
this.tabHoverClass = "TabbedPanelsTabHover";
this.tabFocusedClass = "TabbedPanelsTabFocused";
this.panelVisibleClass = "TabbedPanelsContentVisible";
this.focusElement = null;
this.hasFocus = false;
this.currentTabIndex = 0;
this.enableKeyboardNavigation = true;
this.nextPanelKeyCode = Spry.Widget.TabbedPanels.KEY_RIGHT;
this.previousPanelKeyCode = Spry.Widget.TabbedPanels.KEY_LEFT;

Spry.Widget.TabbedPanels.setOptions(this, opts);

// If the defaultTab is expressed as a number/index, convert
// it to an element.

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];
}

// The defaultTab property is supposed to be the tab element for the tab content
// to show by default. The caller is allowed to pass in the element itself or the
// element's id, so we need to convert the current value to an element if necessary.

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.cancelEvent = function(e) { if (e.preventDefault) e.preventDefault(); else e.returnValue = false; if (e.stopPropagation) e.stopPropagation(); else e.cancelBubble = true; return false; }; Spry.Widget.TabbedPanels.prototype.onTabClick = function(e, tab) { this.showPanel(tab); return this.cancelEvent(e); }; Spry.Widget.TabbedPanels.prototype.onTabMouseOver = function(e, tab) { this.addClassName(tab, this.tabHoverClass); return false; }; Spry.Widget.TabbedPanels.prototype.onTabMouseOut = function(e, tab) { this.removeClassName(tab, this.tabHoverClass); return false; }; Spry.Widget.TabbedPanels.prototype.onTabFocus = function(e, tab) { this.hasFocus = true; this.addClassName(tab, this.tabFocusedClass); return false; }; Spry.Widget.TabbedPanels.prototype.onTabBlur = function(e, tab) { this.hasFocus = false; this.removeClassName(tab, this.tabFocusedClass); return false; }; Spry.Widget.TabbedPanels.KEY_UP = 38; Spry.Widget.TabbedPanels.KEY_DOWN = 40; Spry.Widget.TabbedPanels.KEY_LEFT = 37; Spry.Widget.TabbedPanels.KEY_RIGHT = 39; Spry.Widget.TabbedPanels.prototype.onTabKeyDown = function(e, tab) { var key = e.keyCode; if (!this.hasFocus || (key != this.previousPanelKeyCode && key != this.nextPanelKeyCode)) return true; var tabs = this.getTabs(); for (var i =0; i < tabs.length; i++) if (tabs[i] == tab) { var el = false; if (key == this.previousPanelKeyCode && i > 0)
el = tabs[i-1];
else if (key == this.nextPanelKeyCode && i < tabs.length-1) el = tabs[i+1]; if (el) { this.showPanel(el); el.focus(); break; } } return this.cancelEvent(e); }; 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) { // XXX: IE doesn't allow the setting of tabindex dynamically. This means we can't // rely on adding the tabindex attribute if it is missing to enable keyboard navigation // by default. // Find the first element within the tab container that has a tabindex or the first // anchor tag. 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 // Must be the element for the tab or content panel. 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);
};

Nenhum comentário:

Postar um comentário