utils.js expand and collapse
Hi there guys, nice beiing a part of this forum, im having a problem whit this script, i liked to make my menu when is cliecked in the submenus inside of the menu it stays open, and not closed., can someone helpo my problem
- var PANEL_NORMAL_CLASS = "panel";
var PANEL_COLLAPSED_CLASS = "panelcollapsed";
var PANEL_HEADING_TAG = "h2";
var PANEL_CONTENT_CLASS = "panelcontent";
var PANEL_COOKIE_NAME = "panels";
var PANEL_ANIMATION_DELAY = 20; /*ms*/
var PANEL_ANIMATION_STEPS = 10;
- function setUpPanels()
{
loadSettings();
// get all headings
var headingTags = document.getElementsByTagName(PANEL_HEADING_TAG);
// go through all tags
for (var i=0; i<headingTags.length; i++)
{
var el = headingTags[i];
// make sure it's the heading inside a panel
if (el.parentNode.className != PANEL_NORMAL_CLASS && el.parentNode.className != PANEL_COLLAPSED_CLASS)
continue;
// get the text value of the tag
var name = el.firstChild.nodeValue;
// look for the name in loaded settings, apply the normal/collapsed class
if (panelsStatus[name] == "false")
el.parentNode.className = PANEL_COLLAPSED_CLASS;
else
if (panelsStatus[name] == "false") //menu LIfe Club expandir só
el.parentNode.className = PANEL_NORMAL_CLASS;
else
{
// if no saved setting, see the initial setting
panelsStatus[name] = (el.parentNode.className == PANEL_NORMAL_CLASS) ? "true" : "false";
}
// add the click behavor to headings
el.onclick = function()
{
var target = this.parentNode;
var name = this.firstChild.nodeValue;
var collapsed = (target.className == PANEL_COLLAPSED_CLASS);
saveSettings(name, collapsed?"false":"false");// alteração
animateTogglePanel(target, collapsed);
};
}
}
- /**
* Start the expand/collapse animation of the panel
* @param panel reference to the panel div
*/
function animateTogglePanel(panel, expanding)
{
// find the .panelcontent div
var elements = panel.getElementsByTagName("div");
var panelContent = null;
for (var i=0; i<elements.length; i++)
{
if (elements[i].className == PANEL_CONTENT_CLASS)
{
panelContent = elements[i];
break;
}
}
// make sure the content is visible before getting its height
panelContent.style.display = "block";
// get the height of the content
var contentHeight = panelContent.offsetHeight;
// if panel is collapsed and expanding, we must start with 0 height
if (expanding)
panelContent.style.height = "0px";
var stepHeight = contentHeight / PANEL_ANIMATION_STEPS;
var direction = (!expanding ? -1 : 1);
setTimeout(function(){animateStep(panelContent,1,stepHeight,direction)}, PANEL_ANIMATION_DELAY);
}
- /**
* Change the height of the target
* @param panelContent reference to the panel content to change height
* @param iteration current iteration; animation will be stopped when iteration reaches PANEL_ANIMATION_STEPS
* @param stepHeight height increment to be added/substracted in one step
* @param direction 1 for expanding, -1 for collapsing
*/
function animateStep(panelContent, iteration, stepHeight, direction)
{
if (iteration<PANEL_ANIMATION_STEPS)
{
panelContent.style.height = Math.round(((direction>0) ? iteration : 10 - iteration) * stepHeight) +"px";
iteration++;
setTimeout(function(){animateStep(panelContent,iteration,stepHeight,direction)}, PANEL_ANIMATION_DELAY);
}
else
{
// set class for the panel
panelContent.parentNode.className = (direction<0) ? PANEL_COLLAPSED_CLASS : PANEL_NORMAL_CLASS;
// clear inline styles
panelContent.style.display = panelContent.style.height = "";
}
}
- // -----------------------------------------------------------------------------------------------
// Load-Save
// -----------------------------------------------------------------------------------------------
/**
* Reads the "panels" cookie if exists, expects data formatted as key:value|key:value... puts in panelsStatus object
*/
function loadSettings()
{
// prepare the object that will keep the panel statuses
panelsStatus = {};
// find the cookie name
var start = document.cookie.indexOf(PANEL_COOKIE_NAME + "=");
if (start == -1) return;
// starting point of the value
start += PANEL_COOKIE_NAME.length+1;
// find end point of the value
var end = document.cookie.indexOf(";", start);
if (end == -1) end = document.cookie.length;
// get the value, split into key:value pairs
var cookieValue = unescape(document.cookie.substring(start, end));
var panelsData = cookieValue.split("|");
// split each key:value pair and put in object
for (var i=0; i< panelsData.length; i++)
{
var pair = panelsData[i].split(":");
panelsStatus[pair[0]] = pair[1];
}
}
- function expandAll()
{
for (var key in panelsStatus)
saveSettings(key, "true");
setUpPanels();
}
- function collapseAll()
{
for (var key in panelsStatus)
saveSettings(key, "false");
setUpPanels();
}
- /**
* Takes data from the panelsStatus object, formats as key:value|key:value... and puts in cookie valid for 365 days
* @param key key name to save
* @paeam value key value
*/
function saveSettings(key, value)
{
// put the new value in the object
panelsStatus[key] = value;
// create an array that will keep the key:value pairs
var panelsData = [];
for (var key in panelsStatus)
panelsData.push(key+":"+panelsStatus[key]);
// set the cookie expiration date 1 year from now
var today = new Date();
var expirationDate = new Date(today.getTime() + 365 * 1000 * 60 * 60 * 24);
// write the cookie
document.cookie = PANEL_COOKIE_NAME + "=" + escape(panelsData.join("|")) + ";expires=" + expirationDate.toGMTString();
}
- // -----------------------------------------------------------------------------------------------
// Register setUpPanels to be executed on load
if (window.addEventListener)
{
// the "proper" way
window.addEventListener("load", setUpPanels, false);
}
else
if (window.attachEvent)
{
// the IE way
window.attachEvent("onload", setUpPanels);
}