Team:Osaka/wiki/SpryCollapsiblePanel.js

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Revision as of 13:38, 15 August 2010

// SpryCollapsiblePanel.js - version 0.7 - 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.CollapsiblePanel = function(element, opts) { this.element = this.getElement(element); this.focusElement = null; this.hoverClass = "CollapsiblePanelTabHover"; this.openClass = "CollapsiblePanelOpen"; this.closedClass = "CollapsiblePanelClosed"; this.focusedClass = "CollapsiblePanelFocused"; this.enableAnimation = true; this.enableKeyboardNavigation = true; this.animator = null; this.hasFocus = false; this.contentIsOpen = true;

this.openPanelKeyCode = Spry.Widget.CollapsiblePanel.KEY_DOWN; this.closePanelKeyCode = Spry.Widget.CollapsiblePanel.KEY_UP;

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

this.attachBehaviors(); };

Spry.Widget.CollapsiblePanel.prototype.getElement = function(ele) { if (ele && typeof ele == "string") return document.getElementById(ele); return ele; };

Spry.Widget.CollapsiblePanel.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.CollapsiblePanel.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.CollapsiblePanel.prototype.hasClassName = function(ele, className) { if (!ele || !className || !ele.className || ele.className.search(new RegExp("\\b" + className + "\\b")) == -1) return false; return true; };

Spry.Widget.CollapsiblePanel.prototype.setDisplay = function(ele, display) { if( ele ) ele.style.display = display; };

Spry.Widget.CollapsiblePanel.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.CollapsiblePanel.prototype.onTabMouseOver = function(e) { this.addClassName(this.getTab(), this.hoverClass); return false; };

Spry.Widget.CollapsiblePanel.prototype.onTabMouseOut = function(e) { this.removeClassName(this.getTab(), this.hoverClass); return false; };

Spry.Widget.CollapsiblePanel.prototype.open = function() { this.contentIsOpen = true; if (this.enableAnimation) { if (this.animator) this.animator.stop(); this.animator = new Spry.Widget.CollapsiblePanel.PanelAnimator(this, true, { duration: this.duration, fps: this.fps, transition: this.transition }); this.animator.start(); } else this.setDisplay(this.getContent(), "block");

this.removeClassName(this.element, this.closedClass); this.addClassName(this.element, this.openClass); };

Spry.Widget.CollapsiblePanel.prototype.close = function() { this.contentIsOpen = false; if (this.enableAnimation) { if (this.animator) this.animator.stop(); this.animator = new Spry.Widget.CollapsiblePanel.PanelAnimator(this, false, { duration: this.duration, fps: this.fps, transition: this.transition }); this.animator.start(); } else this.setDisplay(this.getContent(), "none");

this.removeClassName(this.element, this.openClass); this.addClassName(this.element, this.closedClass); };

Spry.Widget.CollapsiblePanel.prototype.onTabClick = function(e) { if (this.isOpen()) this.close(); else this.open();

this.focus();

return this.stopPropagation(e); };

Spry.Widget.CollapsiblePanel.prototype.onFocus = function(e) { this.hasFocus = true; this.addClassName(this.element, this.focusedClass); return false; };

Spry.Widget.CollapsiblePanel.prototype.onBlur = function(e) { this.hasFocus = false; this.removeClassName(this.element, this.focusedClass); return false; };

Spry.Widget.CollapsiblePanel.KEY_UP = 38; Spry.Widget.CollapsiblePanel.KEY_DOWN = 40;

Spry.Widget.CollapsiblePanel.prototype.onKeyDown = function(e) { var key = e.keyCode; if (!this.hasFocus || (key != this.openPanelKeyCode && key != this.closePanelKeyCode)) return true;

if (this.isOpen() && key == this.closePanelKeyCode) this.close(); else if ( key == this.openPanelKeyCode) this.open();

return this.stopPropagation(e); };

Spry.Widget.CollapsiblePanel.prototype.stopPropagation = function(e) { if (e.preventDefault) e.preventDefault(); else e.returnValue = false; if (e.stopPropagation) e.stopPropagation(); else e.cancelBubble = true; return false; };

Spry.Widget.CollapsiblePanel.prototype.attachPanelHandlers = function() { var tab = this.getTab(); if (!tab) return;

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.CollapsiblePanel.addEventListener(this.focusElement, "focus", function(e) { return self.onFocus(e); }, false); Spry.Widget.CollapsiblePanel.addEventListener(this.focusElement, "blur", function(e) { return self.onBlur(e); }, false); Spry.Widget.CollapsiblePanel.addEventListener(this.focusElement, "keydown", function(e) { return self.onKeyDown(e); }, false); } } };

Spry.Widget.CollapsiblePanel.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.CollapsiblePanel.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.CollapsiblePanel.prototype.attachBehaviors = function() { var panel = this.element; var tab = this.getTab(); var content = this.getContent();

if (this.contentIsOpen || this.hasClassName(panel, this.openClass)) { this.addClassName(panel, this.openClass); this.removeClassName(panel, this.closedClass); this.setDisplay(content, "block"); this.contentIsOpen = true; } else { this.removeClassName(panel, this.openClass); this.addClassName(panel, this.closedClass); this.setDisplay(content, "none"); this.contentIsOpen = false; }

this.attachPanelHandlers(); };

Spry.Widget.CollapsiblePanel.prototype.getTab = function() { return this.getElementChildren(this.element)[0]; };

Spry.Widget.CollapsiblePanel.prototype.getContent = function() { return this.getElementChildren(this.element)[1]; };

Spry.Widget.CollapsiblePanel.prototype.isOpen = function() { return this.contentIsOpen; };

Spry.Widget.CollapsiblePanel.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.CollapsiblePanel.prototype.focus = function() { if (this.focusElement && this.focusElement.focus) this.focusElement.focus(); };

/////////////////////////////////////////////////////

Spry.Widget.CollapsiblePanel.PanelAnimator = function(panel, doOpen, opts) { this.timer = null; this.interval = 0;

this.fps = 60; this.duration = 500; this.startTime = 0;

this.transition = Spry.Widget.CollapsiblePanel.PanelAnimator.defaultTransition;

this.onComplete = null;

this.panel = panel; this.content = panel.getContent(); this.doOpen = doOpen;

Spry.Widget.CollapsiblePanel.setOptions(this, opts, true);

this.interval = Math.floor(1000 / this.fps);

var c = this.content;

var curHeight = c.offsetHeight ? c.offsetHeight : 0; this.fromHeight = (doOpen && c.style.display == "none") ? 0 : curHeight;

if (!doOpen) this.toHeight = 0; else { if (c.style.display == "none") { // The content area is not displayed so in order to calculate the extent // of the content inside it, we have to set its display to block.

c.style.visibility = "hidden"; c.style.display = "block"; }

// Clear the height property so we can calculate // the full height of the content we are going to show.

c.style.height = ""; this.toHeight = c.offsetHeight; }

this.distance = this.toHeight - this.fromHeight; this.overflow = c.style.overflow;

c.style.height = this.fromHeight + "px"; c.style.visibility = "visible"; c.style.overflow = "hidden"; c.style.display = "block"; };

Spry.Widget.CollapsiblePanel.PanelAnimator.defaultTransition = function(time, begin, finish, duration) { time /= duration; return begin + ((2 - time) * time * finish); };

Spry.Widget.CollapsiblePanel.PanelAnimator.prototype.start = function() { var self = this; this.startTime = (new Date).getTime(); this.timer = setTimeout(function() { self.stepAnimation(); }, this.interval); };

Spry.Widget.CollapsiblePanel.PanelAnimator.prototype.stop = function() { if (this.timer) { clearTimeout(this.timer);

// If we're killing the timer, restore the overflow property.

this.content.style.overflow = this.overflow; }

this.timer = null; };

Spry.Widget.CollapsiblePanel.PanelAnimator.prototype.stepAnimation = function() { var curTime = (new Date).getTime(); var elapsedTime = curTime - this.startTime;

if (elapsedTime >= this.duration) { if (!this.doOpen) this.content.style.display = "none"; this.content.style.overflow = this.overflow; this.content.style.height = this.toHeight + "px"; if (this.onComplete) this.onComplete(); return; }

var ht = this.transition(elapsedTime, this.fromHeight, this.distance, this.duration);

this.content.style.height = ((ht < 0) ? 0 : ht) + "px";

var self = this; this.timer = setTimeout(function() { self.stepAnimation(); }, this.interval); };

Spry.Widget.CollapsiblePanelGroup = function(element, opts) { this.element = this.getElement(element); this.opts = opts;

this.attachBehaviors(); };

Spry.Widget.CollapsiblePanelGroup.prototype.setOptions = Spry.Widget.CollapsiblePanel.prototype.setOptions; Spry.Widget.CollapsiblePanelGroup.prototype.getElement = Spry.Widget.CollapsiblePanel.prototype.getElement; Spry.Widget.CollapsiblePanelGroup.prototype.getElementChildren = Spry.Widget.CollapsiblePanel.prototype.getElementChildren;

Spry.Widget.CollapsiblePanelGroup.prototype.setElementWidget = function(element, widget) { if (!element || !widget) return; if (!element.spry) element.spry = new Object; element.spry.collapsiblePanel = widget; };

Spry.Widget.CollapsiblePanelGroup.prototype.getElementWidget = function(element) { return (element && element.spry && element.spry.collapsiblePanel) ? element.spry.collapsiblePanel : null; };

Spry.Widget.CollapsiblePanelGroup.prototype.getPanels = function() { if (!this.element) return []; return this.getElementChildren(this.element); };

Spry.Widget.CollapsiblePanelGroup.prototype.getPanel = function(panelIndex) { return this.getPanels()[panelIndex]; };

Spry.Widget.CollapsiblePanelGroup.prototype.attachBehaviors = function() { if (!this.element) return;

var cpanels = this.getPanels(); var numCPanels = cpanels.length; for (var i = 0; i < numCPanels; i++) { var cpanel = cpanels[i]; this.setElementWidget(cpanel, new Spry.Widget.CollapsiblePanel(cpanel, this.opts)); } };

Spry.Widget.CollapsiblePanelGroup.prototype.openPanel = function(panelIndex) { var w = this.getElementWidget(this.getPanel(panelIndex)); if (w && !w.isOpen()) w.open(); };

Spry.Widget.CollapsiblePanelGroup.prototype.closePanel = function(panelIndex) { var w = this.getElementWidget(this.getPanel(panelIndex)); if (w && w.isOpen()) w.close(); };

Spry.Widget.CollapsiblePanelGroup.prototype.openAllPanels = function() { var cpanels = this.getPanels(); var numCPanels = cpanels.length; for (var i = 0; i < numCPanels; i++) { var w = this.getElementWidget(cpanels[i]); if (w && !w.isOpen()) w.open(); } };

Spry.Widget.CollapsiblePanelGroup.prototype.closeAllPanels = function() { var cpanels = this.getPanels(); var numCPanels = cpanels.length; for (var i = 0; i < numCPanels; i++) { var w = this.getElementWidget(cpanels[i]); if (w && w.isOpen()) w.close(); } };