// SprySlidingPanels.js - version 0.5 - Spry Pre-Release 1.6
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//
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// Copyright (c) 2006. Adobe Systems Incorporated.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Adobe Systems Incorporated nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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var Spry;
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if (!Spry) Spry = {};
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if (!Spry.Widget) Spry.Widget = {};
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Spry.Widget.SlidingPanels = function(element, opts)
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{
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this.element = this.getElement(element);
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this.enableAnimation = true;
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this.currentPanel = null;
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this.enableKeyboardNavigation = true;
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this.hasFocus = false;
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this.previousPanelKeyCode = Spry.Widget.SlidingPanels.KEY_LEFT;
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this.nextPanelKeyCode = Spry.Widget.SlidingPanels.KEY_RIGHT;
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this.currentPanelClass = "SlidingPanelsCurrentPanel";
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this.focusedClass = "SlidingPanelsFocused";
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this.animatingClass = "SlidingPanelsAnimating";
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Spry.Widget.SlidingPanels.setOptions(this, opts);
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if (this.element)
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this.element.style.overflow = "hidden";
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// Developers can specify the default panel as an index,
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// id or an actual element node. Make sure to normalize
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// it into an element node because that is what we expect
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// internally.
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if (this.defaultPanel)
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{
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if (typeof this.defaultPanel == "number")
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this.currentPanel = this.getContentPanels()[this.defaultPanel];
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else
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this.currentPanel = this.getElement(this.defaultPanel);
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}
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// If we still don't have a current panel, use the first one!
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if (!this.currentPanel)
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this.currentPanel = this.getContentPanels()[0];
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// Since we rely on the positioning information of the
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// panels, we need to wait for the onload event to fire before
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// we can attempt to show the initial panel. Once the onload
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// fires, we know that all CSS files have loaded. This is
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// especially important for Safari.
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if (Spry.Widget.SlidingPanels.onloadDidFire)
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this.attachBehaviors();
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else
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Spry.Widget.SlidingPanels.loadQueue.push(this);
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};
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Spry.Widget.SlidingPanels.prototype.onFocus = function(e)
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{
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this.hasFocus = true;
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this.addClassName(this.element, this.focusedClass);
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return false;
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};
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Spry.Widget.SlidingPanels.prototype.onBlur = function(e)
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{
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this.hasFocus = false;
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this.removeClassName(this.element, this.focusedClass);
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return false;
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};
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Spry.Widget.SlidingPanels.KEY_LEFT = 37;
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Spry.Widget.SlidingPanels.KEY_UP = 38;
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Spry.Widget.SlidingPanels.KEY_RIGHT = 39;
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Spry.Widget.SlidingPanels.KEY_DOWN = 40;
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Spry.Widget.SlidingPanels.prototype.onKeyDown = function(e)
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{
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var key = e.keyCode;
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if (!this.hasFocus || (key != this.previousPanelKeyCode && key != this.nextPanelKeyCode))
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return true;
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if (key == this.nextPanelKeyCode)
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this.showNextPanel();
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else /* if (key == this.previousPanelKeyCode) */
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this.showPreviousPanel();
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if (e.preventDefault) e.preventDefault();
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else e.returnValue = false;
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if (e.stopPropagation) e.stopPropagation();
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else e.cancelBubble = true;
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return false;
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};
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Spry.Widget.SlidingPanels.prototype.attachBehaviors = function()
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{
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var ele = this.element;
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if (!ele)
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return;
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if (this.enableKeyboardNavigation)
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{
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var focusEle = null;
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var tabIndexAttr = ele.attributes.getNamedItem("tabindex");
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if (tabIndexAttr || ele.nodeName.toLowerCase() == "a")
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focusEle = ele;
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if (focusEle)
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{
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var self = this;
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Spry.Widget.SlidingPanels.addEventListener(focusEle, "focus", function(e) { return self.onFocus(e || window.event); }, false);
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Spry.Widget.SlidingPanels.addEventListener(focusEle, "blur", function(e) { return self.onBlur(e || window.event); }, false);
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Spry.Widget.SlidingPanels.addEventListener(focusEle, "keydown", function(e) { return self.onKeyDown(e || window.event); }, false);
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}
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}
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if (this.currentPanel)
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{
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// Temporarily turn off animation when showing the
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// initial panel.
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var ea = this.enableAnimation;
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this.enableAnimation = false;
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this.showPanel(this.currentPanel);
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this.enableAnimation = ea;
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}
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};
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Spry.Widget.SlidingPanels.prototype.getElement = function(ele)
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{
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if (ele && typeof ele == "string")
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return document.getElementById(ele);
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return ele;
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};
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Spry.Widget.SlidingPanels.prototype.addClassName = function(ele, className)
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{
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if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) != -1))
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return;
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ele.className += (ele.className ? " " : "") + className;
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};
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Spry.Widget.SlidingPanels.prototype.removeClassName = function(ele, className)
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{
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if (!ele || !className || (ele.className && ele.className.search(new RegExp("\\b" + className + "\\b")) == -1))
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return;
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ele.className = ele.className.replace(new RegExp("\\s*\\b" + className + "\\b", "g"), "");
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};
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Spry.Widget.SlidingPanels.setOptions = function(obj, optionsObj, ignoreUndefinedProps)
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{
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if (!optionsObj)
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return;
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for (var optionName in optionsObj)
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{
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if (ignoreUndefinedProps && optionsObj[optionName] == undefined)
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continue;
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obj[optionName] = optionsObj[optionName];
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}
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};
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Spry.Widget.SlidingPanels.prototype.getElementChildren = function(element)
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{
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var children = [];
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var child = element.firstChild;
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while (child)
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{
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if (child.nodeType == 1 /* Node.ELEMENT_NODE */)
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children.push(child);
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child = child.nextSibling;
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}
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return children;
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};
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Spry.Widget.SlidingPanels.prototype.getCurrentPanel = function()
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{
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return this.currentPanel;
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};
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Spry.Widget.SlidingPanels.prototype.getContentGroup = function()
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{
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return this.getElementChildren(this.element)[0];
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};
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Spry.Widget.SlidingPanels.prototype.getContentPanels = function()
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{
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return this.getElementChildren(this.getContentGroup());
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};
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Spry.Widget.SlidingPanels.prototype.getContentPanelsCount = function()
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{
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return this.getContentPanels().length;
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};
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Spry.Widget.SlidingPanels.onloadDidFire = false;
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Spry.Widget.SlidingPanels.loadQueue = [];
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Spry.Widget.SlidingPanels.addLoadListener = function(handler)
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{
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if (typeof window.addEventListener != 'undefined')
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window.addEventListener('load', handler, false);
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else if (typeof document.addEventListener != 'undefined')
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document.addEventListener('load', handler, false);
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else if (typeof window.attachEvent != 'undefined')
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window.attachEvent('onload', handler);
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};
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Spry.Widget.SlidingPanels.processLoadQueue = function(handler)
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{
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Spry.Widget.SlidingPanels.onloadDidFire = true;
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var q = Spry.Widget.SlidingPanels.loadQueue;
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var qlen = q.length;
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for (var i = 0; i < qlen; i++)
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q[i].attachBehaviors();
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};
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Spry.Widget.SlidingPanels.addLoadListener(Spry.Widget.SlidingPanels.processLoadQueue);
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Spry.Widget.SlidingPanels.addEventListener = function(element, eventType, handler, capture)
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{
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try
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{
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if (element.addEventListener)
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element.addEventListener(eventType, handler, capture);
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else if (element.attachEvent)
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element.attachEvent("on" + eventType, handler);
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}
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catch (e) {}
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};
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Spry.Widget.SlidingPanels.prototype.getContentPanelIndex = function(ele)
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{
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if (ele)
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{
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ele = this.getElement(ele);
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var panels = this.getContentPanels();
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var numPanels = panels.length;
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for (var i = 0; i < numPanels; i++)
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{
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if (panels[i] == ele)
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return i;
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}
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}
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return -1;
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};
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Spry.Widget.SlidingPanels.prototype.showPanel = function(elementOrIndex)
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{
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var pIndex = -1;
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if (typeof elementOrIndex == "number")
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pIndex = elementOrIndex;
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else // Must be the element for the content panel.
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pIndex = this.getContentPanelIndex(elementOrIndex);
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var numPanels = this.getContentPanelsCount();
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if (numPanels > 0)
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pIndex = (pIndex >= numPanels) ? numPanels - 1 : pIndex;
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else
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pIndex = 0;
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var panel = this.getContentPanels()[pIndex];
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var contentGroup = this.getContentGroup();
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if (panel && contentGroup)
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{
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if (this.currentPanel)
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this.removeClassName(this.currentPanel, this.currentPanelClass);
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this.currentPanel = panel;
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var nx = -panel.offsetLeft;
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var ny = -panel.offsetTop;
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if (this.enableAnimation)
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{
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if (this.animator)
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this.animator.stop();
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var cx = contentGroup.offsetLeft;
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var cy = contentGroup.offsetTop;
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if (cx != nx || cy != ny)
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{
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var self = this;
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this.addClassName(this.element, this.animatingClass);
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this.animator = new Spry.Widget.SlidingPanels.PanelAnimator(contentGroup, cx, cy, nx, ny, { duration: this.duration, fps: this.fps, transition: this.transition, finish: function()
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{
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self.removeClassName(self.element, self.animatingClass);
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self.addClassName(panel, self.currentPanelClass);
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} });
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this.animator.start();
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}
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}
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else
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{
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contentGroup.style.left = nx + "px";
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contentGroup.style.top = ny + "px";
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this.addClassName(panel, this.currentPanelClass);
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}
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}
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return panel;
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};
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Spry.Widget.SlidingPanels.prototype.showFirstPanel = function()
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{
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return this.showPanel(0);
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};
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Spry.Widget.SlidingPanels.prototype.showLastPanel = function()
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{
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return this.showPanel(this.getContentPanels().length - 1);
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};
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Spry.Widget.SlidingPanels.prototype.showPreviousPanel = function()
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{
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return this.showPanel(this.getContentPanelIndex(this.currentPanel) - 1);
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};
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Spry.Widget.SlidingPanels.prototype.showNextPanel = function()
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{
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return this.showPanel(this.getContentPanelIndex(this.currentPanel) + 1);
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};
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Spry.Widget.SlidingPanels.PanelAnimator = function(ele, curX, curY, dstX, dstY, opts)
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{
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this.element = ele;
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this.curX = curX;
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this.curY = curY;
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this.dstX = dstX;
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this.dstY = dstY;
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this.fps = 60;
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this.duration = 500;
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this.transition = Spry.Widget.SlidingPanels.PanelAnimator.defaultTransition;
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this.startTime = 0;
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this.timerID = 0;
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this.finish = null;
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var self = this;
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this.intervalFunc = function() { self.step(); };
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Spry.Widget.SlidingPanels.setOptions(this, opts, true);
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this.interval = 1000/this.fps;
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};
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Spry.Widget.SlidingPanels.PanelAnimator.defaultTransition = function(time, begin, finish, duration) { time /= duration; return begin + ((2 - time) * time * finish); };
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Spry.Widget.SlidingPanels.PanelAnimator.prototype.start = function()
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{
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this.stop();
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this.startTime = (new Date()).getTime();
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this.timerID = setTimeout(this.intervalFunc, this.interval);
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};
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Spry.Widget.SlidingPanels.PanelAnimator.prototype.stop = function()
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{
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if (this.timerID)
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clearTimeout(this.timerID);
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this.timerID = 0;
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};
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Spry.Widget.SlidingPanels.PanelAnimator.prototype.step = function()
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{
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var elapsedTime = (new Date()).getTime() - this.startTime;
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var done = elapsedTime >= this.duration;
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var x, y;
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if (done)
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{
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x = this.curX = this.dstX;
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y = this.curY = this.dstY;
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}
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else
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{
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x = this.transition(elapsedTime, this.curX, this.dstX - this.curX, this.duration);
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y = this.transition(elapsedTime, this.curY, this.dstY - this.curY, this.duration);
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}
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this.element.style.left = x + "px";
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this.element.style.top = y + "px";
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if (!done)
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this.timerID = setTimeout(this.intervalFunc, this.interval);
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else if (this.finish)
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this.finish();
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};
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