I am trying to make an off-canvas menu that can be opened systematically on touch events. It works fine on my browser when I click on the body and drag it to open the menu.
However it fails on the iPhone. The error that is being displayed on my console is
TypeError: 'undefined' is not an object (evaluating 'event.touches[0]')
which is on this function:
getTouchCoordinates: function(event) {
if ( s.touchSupported ) {
var touchEvent = event.touches[0];
return { x:touchEvent.pageX, y:touchEvent.pageY }
}
else {
return { x:event.screenX, y:event.screenY };
}
},
The full codes of the menu is as follows:
document.addEventListener('touchmove', function (e) { e.preventDefault(); }, false);
var s,
app = {
settings: {
touchSupported: ('ontouchstart' in window),
start_event: "",
move_event: "",
end_event: "",
main: $("#body"),
sidebar: $("#sidebar"),
gestureStarted: false,
bodyOffset: 0,
sidebarWidth: 250,
gestureStartPosition: "",
gestureS: "",
target: ""
},
init: function() {
s = this.settings;
this.touchHandlers();
this.bindUIActions();
},
bindUIActions: function() {
s.main.bind(s.start_event, function(e){
s.gestureStartPosition = app.getTouchCoordinates(e);
s.gestureS = app.getTouchCoordinates(e);
s.main.bind(s.move_event, function(e){
var pos = app.getTouchCoordinates(e);
var currentPosition = app.getTouchCoordinates( event );
if ( s.gestureStarted ) {
event.preventDefault();
event.stopPropagation();
app.updateBasedOnTouchPoints( currentPosition.x );
return;
}
else {
if ( Math.abs( currentPosition.y - s.gestureStartPosition.y ) > 50 ) {
//unbind events here
s.main.unbind(s.end_event);
s.main.unbind(s.move_event);
return;
}
else if ( Math.abs( currentPosition.x - s.gestureStartPosition.x ) > 0 ) {
s.gestureStarted = true;
event.preventDefault();
event.stopPropagation();
app.updateBasedOnTouchPoints( currentPosition.x );
return;
}
}
});
s.main.bind(s.end_event, function(e){
var currentPosition = app.getTouchCoordinates( event );
if ( s.gestureStarted ) {
s.main.css("left", "0px" );
//console.log(s.gestureS.x+" "+currentPosition.x);
var c = s.bodyOffset ;
var t;
// check if open or close
if ( (s.gestureS.x - currentPosition.x) < 0 ) {
//console.log("open");
t = s.sidebarWidth;
} else {
//console.log("close");
t = 0 ;
}
if ( c != t ) {
s.main.stop(true, false).animate({
left:t,
avoidTransforms:false,
useTranslate3d: true
}, 100);
s.sidebar.trigger( "slidingViewProgress", { current:t, max:s.sidebarWidth } );
}
}
s.gestureStarted = false;
//unbind events here
s.main.unbind(s.end_event);
s.main.unbind(s.move_event);
});
});
},
touchHandlers: function() {
s.start_event = s.touchSupported ? 'touchstart' : 'mousedown';
s.move_event = s.touchSupported ? 'touchmove' : 'mousemove';
s.end_event = s.touchSupported ? 'touchend' : 'mouseup';
},
getTouchCoordinates: function(event) {
if ( s.touchSupported ) {
var touchEvent = event.touches[0];
return { x:touchEvent.pageX, y:touchEvent.pageY }
}
else {
return { x:event.screenX, y:event.screenY };
}
},
updateBasedOnTouchPoints: function( currentPosition ) {
var deltaX = (currentPosition - s.gestureStartPosition.x) ;
var targetX = (s.bodyOffset + deltaX);
targetX = Math.max( targetX, 0 );
targetX = Math.min( targetX, s.sidebarWidth );
s.bodyOffset = targetX;
s.target = targetX;
if ( s.main.css("left") != "0px" ) {
s.main.css("left", "0px" );
}
s.main.css("-webkit-transform", "translate3d(" + targetX + "px,0,0)" );
s.main.css("-moz-transform", "translate3d(" + targetX + "px,0,0)" );
s.main.css("transform", "translate3d(" + targetX + "px,0,0)" );
s.sidebar.trigger( "slidingViewProgress", { current: targetX, max:s.sidebarWidth } );
s.gestureStartPosition.x = currentPosition;
}
};
(function() {
app.init();
})();
Can you try:
event.originalEvent.touches
Related
This question already has answers here:
Get the size of the screen, current web page and browser window
(20 answers)
Closed 6 days ago.
I see following error for my website (via google Inspect). I need your help to understand the problem and how to fix it?
script.js:137 Uncaught TypeError: window.getWidth is not a function
at Object.check (script.js:137:23)
at Object.initialize (script.js:58:14)
at HTMLDocument.<anonymous> (script.js:442:14)
at n (jquery-1.7.1.min.js:2:14784)
at Object.fireWith (jquery-1.7.1.min.js:2:15553)
at Function.ready (jquery-1.7.1.min.js:2:9773)
at HTMLDocument.B (jquery-1.7.1.min.js:2:14348)
and following is script.js file content:
var TouchMask = {
handlers: [],
isbind: 0,
ontouch: function(){
var result = 1;
TouchMask.handlers.each(function(fn){
result = fn() && result;
});
if(result){
document.removeEvent('touchstart', TouchMask.ontouch);
TouchMask.isbind = 0;
}
},
show: function(){
if(this.isbind){
return false;
}
document.addEvent('touchstart', TouchMask.ontouch);
this.isbind = 1;
},
register: function(handler){
if(typeOf (handler) == 'function' && this.handlers.indexOf(handler) == -1){
this.handlers.push(handler);
}
},
unregister: function(handler){
this.handlers.erase(handler);
}
};
var JawallMenu = {
initialize: function(){
JawallMenu.isAndroidTable = navigator.userAgent.toLowerCase().indexOf('android') > -1 && navigator.userAgent.toLowerCase().indexOf('mobile') == -1;
JawallMenu.isTouch = 'ontouchstart' in window && !(/hp-tablet/gi).test(navigator.appVersion);
JawallMenu.isTablet = JawallMenu.isTouch && (window.innerWidth >= 720);
JawallMenu.enableTouch();
JawallMenu.check();
window.addEvent('resize', JawallMenu.check);
},
enableTouch: function(){
if (JawallMenu.isTouch){
var jmainnav = $('mainnav');
if(!jmainnav){
return false;
}
var jmenu = jmainnav.getElement('.menu');
if(!jmenu){
return false;
}
var jitems = jmenu.getElements('li.deeper'),
onTouch = function(e){
var i, len, noclick = !this.retrieve('noclick');
e.stopPropagation();
// reset all
for (i = 0, len = jitems.length; i < len; ++i) {
jitems[i].store('noclick', 0);
}
if(noclick){
var jshow = this.addClass('hover').getParents('li.parent').addClass('hover');
jshow = jshow.append([this]);
jitems.each(function (jitem) {
if(!jshow.contains(jitem)){
jitem.removeClass('hover');
}
});
}
this.store('noclick', noclick);
this.focus();
},
onClick = function(e){
e.stopPropagation();
if(this.retrieve('noclick')){
e.preventDefault();
jitems.removeClass('hover');
this.addClass('hover').getParents('li.parent').addClass('hover');
TouchMask.hidetoggle();
TouchMask.show();
} else {
var href = this.getElement('a').get('href');
if(href){
window.location.href = href;
}
}
};
jitems.each(function(jitem){
jitem.addEvent('touchstart', onTouch)
.addEvent('click', onClick)
.store('noclick', 0);
});
JawallMenu.resetmenu = function(){
jitems.store('noclick', 0).removeClass('hover');
return true;
};
TouchMask.register(JawallMenu.resetmenu);
}
},
oldWidth: 0,
check: function(){
var wwidth = window.getWidth();
if(wwidth == JawallMenu.oldWidth){
return;
}
JawallMenu.oldWidth = wwidth;
var jmainnav = $('mainnav');
if(!jmainnav){
return;
}
var jmenuinner = jmainnav.getElement('.menu-inner'),
jmenu = jmainnav.getElement('.menu');
if(!jmenuinner || !jmenu){
return;
}
//check if we have to implement scroll
if (jmenu.offsetWidth > jmenuinner.offsetWidth) {
jmenu.setStyle('float', 'left');
if(!window.menuIScroll){
var jprev = jmainnav.getChildren('.navprev')[0] || new Element('a', {
'href': 'javascript:;',
'class': 'navprev'
}).inject(jmainnav).addEvent('click', function(){
if(window.menuIScroll){
window.menuIScroll.scrollToPage('prev');
}
if(JawallMenu.jcitem){
JawallMenu.jcitem.fireEvent('shide');
JawallMenu.jcitem = null;
}
}),
jnext = jmainnav.getChildren('.navnext')[0] || new Element('a', {
'href': 'javascript:;',
'class': 'navnext'
}).inject(jmainnav).addEvent('click', function(){
if(window.menuIScroll){
window.menuIScroll.scrollToPage('next');
}
if(JawallMenu.jcitem){
JawallMenu.jcitem.fireEvent('shide');
JawallMenu.jcitem = null;
}
}),
checkNav = function (){
if(window.menuIScroll){
jprev.setStyle('display', window.menuIScroll.x >= 0 ? 'none' : 'block');
jnext.setStyle('display', (window.menuIScroll.x <= window.menuIScroll.maxScrollX) ? 'none' : 'block');
}
};
window.menuIScroll = new iScroll(jmenuinner, {
snap: '.menu > li',
hScrollbar: false,
vScrollbar: false,
onRefresh: checkNav,
onScrollEnd: checkNav,
useTransform: false,
onScrollStart: function(){
if(JawallMenu.jcitem){
JawallMenu.jcitem.fireEvent('shide');
JawallMenu.jcitem = null;
}
},
overflow: ''
});
checkNav();
var jactive = jmenu.getChildren('.active')[0];
if(jactive){
window.menuIScroll.scrollToElement(jactive);
}
}
if (window.menuIScroll) {
window.menuIScroll.refresh();
}
} else {
if (window.menuIScroll) {
window.menuIScroll.scrollTo(0, 0, 0);
}
jmenu.setStyle('float', '');
}
//check if the mobile layout, we change html structure
if(wwidth < 720){
if(JawallMenu.jcitem){
JawallMenu.jcitem.fireEvent('shide');
JawallMenu.jcitem = null;
}
jmenuinner.setStyle('overflow', 'hidden');
jmenu.getChildren('.deeper > ul').each(function(jsub){
var jitem = jsub.getParent(),
sid = null;
jsub.store('parent', jitem).addClass('jsub').inject(jmainnav).setStyle('position', 'absolute');
if(!JawallMenu.isTouch){
//add mouse event to show/hide sub on desktop
jitem.addEvent('mouseenter', function(e){
clearTimeout(sid);
if(jsub.getStyle('display') != 'none'){
return false;
} else {
if(JawallMenu.jcitem && JawallMenu.jcitem != jitem){
JawallMenu.jcitem.fireEvent('shide');
}
jsub.setStyles({
display: 'block',
top: jmenuinner.getHeight()
});
jitem.addClass('over');
JawallMenu.jcitem = jitem;
}
}).addEvent('mouseleave', function(){
clearTimeout(sid);
sid = setTimeout(function(){
jitem.fireEvent('shide');
}, 100);
});
jsub.addEvent('mouseenter', function(){
clearTimeout(sid);
}).addEvent('mouseleave', function(){
clearTimeout(sid);
sid = setTimeout(function(){
jitem.fireEvent('shide');
}, 100);
});
} else {
//add touch event for touch device
jitem.addEvent('touchstart', function(e){
if(jsub.getStyle('display') == 'none'){
e.stop();
if(JawallMenu.jcitem && JawallMenu.jcitem != jitem){
JawallMenu.jcitem.fireEvent('shide');
}
jsub.setStyles({
display: 'block',
top: jmenuinner.getHeight()
});
jitem.addClass('over');
JawallMenu.jcitem = jitem;
TouchMask.hidetoggle();
TouchMask.show();
}
});
}
jitem.addEvent('shide', function(){
clearTimeout(sid);
jsub.setStyle('display', 'none');
jitem.removeClass('over');
JawallMenu.jcitem = null;
}).fireEvent('shide');
});
//only init once
if(!JawallMenu.initTouch && JawallMenu.isTouch){
jmainnav.addEvent('touchstart', function(){
if(JawallMenu.jcitem){
this.store('touchInside', 1);
}
});
TouchMask.hidesub = function(){
if(jmainnav.retrieve('touchInside')){
jmainnav.store('touchInside', 0);
return false;
} else {
if(JawallMenu.jcitem){
JawallMenu.jcitem.fireEvent('shide');
return false;
}
}
return true;
};
TouchMask.register(TouchMask.hidesub);
TouchMask.hidesub();
JawallMenu.initTouch = 1;
}
} else {
JawallMenu.jcitem = null;
jmainnav.getChildren('.jsub').each(function(jsub){
var jitem = jsub.retrieve('parent');
jitem.removeEvents('mouseenter').removeEvents('mouseleave').removeEvents('touchstart').removeEvents('shide');
jsub.removeProperty('style').removeEvents('mouseenter').removeEvents('mouseleave').removeClass('jsub').inject(jitem);
});
jmenuinner.setStyle('overflow', '');
}
}
};
window.addEventListener('load', function(event) {
if(window.menuIScroll){
window.menuIScroll.refresh();
}
if(window.sidebarIScroll){
window.sidebarIScroll.refresh();
}
});
(function($){
var groups = {
},
handler = function (group, value) {
// ignore user setting for page with fixed option
if ($(document.body).hasClass ('fixed-' + group)){
return;
}
if (value) {
if (groups[group]['type'] == 'toggle') {
var cvalue = $.cookie ('ja-'+group);
if (new RegExp ('(^|\\s)' + value+'(?:\\s|$)').test(cvalue)) {
$(document.body).removeClass (group + '-' + value);
cvalue = cvalue.replace (new RegExp ('(^|\\s)' + value+'(?:\\s|$)', 'g'), '$1');
} else {
$(document.body).addClass (group + '-' + value);
cvalue += ' ' + value;
}
groups[group]['val'] = cvalue;
// update cookie
$.cookie ('ja-'+group, cvalue, {duration: 365, path: '/'});
} else {
// update value & cookie
groups[group]['val'] = value;
$.cookie ('ja-'+group, value, {duration: 365, path: '/'});
// remove current
document.body.className = document.body.className.replace (new RegExp ('(^|\\s)' + group+'-[^\\s]*', 'g'), '$1');
$(document.body).addClass (group + '-' + value);
}
}
// Make the UI reload by trigger resize event for window
$(window).trigger('resize');
};
$.fn.toolbar = function(options){
var defaults = {
group: 'basegrid',
type: 'single',
val: 'm'
},
opt = $.extend(defaults, options);
groups[opt.group] = groups[opt.group] || {};
$.extend(groups[opt.group], {type: opt.type, val: opt.val});
if (!$(document.body).hasClass ('fixed-' + opt.group)){
var value = $.cookie('ja-'+opt.group);
if (value) {
groups[opt.group]['val'] = value; // setting exists, replace the default
// add active class
$(document.body).addClass (groups[opt.group]['val'].replace (/(^|\s)([^\s]+)/g, '$1' + opt.group + '-$2'));
} else if(opt.val) {
handler (opt.group, opt.val);
}
}
// bind event for toolbar
return this.bind('click', function () { handler (opt.group, this.id.replace ('toolbar-' + opt.group + '-', '')); return false; });
};
})(window.$wall || window.jQuery);
(window.$wall || window.jQuery)(document).ready(function ($) {
// enable menu responsive check
if(!($.browser.msie && parseFloat($.browser.version) < 9)){
JawallMenu.initialize();
}
var bindevent = 'ontouchstart' in window && !(/hp-tablet/gi).test(navigator.appVersion) ? 'touchstart' : 'click',
jtoggles = $('.btn-toggle'),
jsidebar = $('#sidebar'),
jtoggleactive = null;
// toggle handle
jtoggles.bind(bindevent, function (event) {
var jactive = $(this),
jparent = jactive.parent();
if (jparent.hasClass('active')) {
jparent.removeClass ('active');
// remove btn-toggle-active
jtoggleactive = null
} else {
// remove other active
jtoggles.parent().removeClass ('active');
// add active for this toggle
jparent.addClass ('active');
// store
jtoggleactive = jactive;
}
if(typeOf (TouchMask.hidesub) == 'function'){
TouchMask.hidesub();
}
TouchMask.show();
return false;
});
jtoggles.parent().bind(bindevent, function(){
if(jtoggleactive){
$('body').data('touchInside', 1);
}
});
TouchMask.hidetoggle = function(){
if (jtoggleactive) {
if($('body').data('touchInside')){
$('body').data('touchInside', 0);
return false;
} else {
// remove active
jtoggleactive.parent().removeClass ('active');
jtoggleactive = null;
return false;
}
}
return true;
};
TouchMask.register(TouchMask.hidetoggle);
var rfpage = $('#josForm').hasClass('wform') && $('#k2Container').hasClass('k2AccountPage'),
wmobile = false, //normal by default
wmeditor = function(){
if(!wmobile){
var jmce = $('.mceLayout:first');
if(jmce.width() > jmce.closest('.wcontrols').width()){
wmobile = true;
$('table.mceToolbar').each(function(){
$(this).find('> tbody > tr').css('white-space', 'normal').find('td').css({
position: '',
float: 'left',
display: 'inline-block'
});
});
$('.toggle-editor a').trigger('click').delay(300).trigger('click');
}
}
},
sidrfp = setTimeout(wmeditor, 350);
// tracking status of btn-toggle
$(window).resize (function() {
JawallMenu.isTablet = JawallMenu.isTouch && (window.innerWidth >= 720);
if (jtoggleactive) {
if (jtoggleactive.css('display') == 'none') {
// remove active
jtoggleactive.parent().removeClass ('active');
jtoggleactive = null;
}
}
if (jsidebar.length) {
if(JawallMenu.isTablet){
jsidebar.css({
position: 'fixed',
top: ''
});
}
jsidebar
.add(jsidebar.find('.sidebar-inner'))
.css('height', Math.max(80,
(window.innerHeight || $(window).height())
- parseInt(jsidebar.css('top'))
- parseInt(jsidebar.css('margin-bottom'))
- parseInt(jsidebar.css('padding-bottom'))));
if(window.sidebarIScroll){
window.sidebarIScroll.refresh();
}
}
if(rfpage){
clearTimeout(sidrfp);
sidrfp = setTimeout(wmeditor, 350);
}
});
// scrollbar for sidebar if exist
if (jsidebar.length) {
jsidebar
.add(jsidebar.find('.sidebar-inner'))
.css('height', Math.max(80,
(window.innerHeight || $(window).height())
- parseInt(jsidebar.css('top'))
- parseInt(jsidebar.css('margin-bottom'))
- parseInt(jsidebar.css('padding-bottom'))));
window.sidebarIScroll = new iScroll(jsidebar.find('.sidebar-inner')[0], {vScrollbar: true, scrollbarClass: 'sidebarTracker', useTransform: false});
if(JawallMenu.isTouch){
var jsbtoggle = jsidebar.find('.btn-toggle:first');
$('<div id="dummy-toggle"></div>').css({
position: 'absolute',
top: 0,
left: 0,
width: jsbtoggle.width(),
height: jsbtoggle.height(),
}).appendTo(document.body).bind(bindevent, function(e){
e.preventDefault();
e.stopPropagation();
jsbtoggle.trigger(bindevent);
});
var lastScroll = 0,
scrollid = null;
$(window).scroll(function(){
lastScroll = $(window).scrollTop();
$('#dummy-toggle').css('top', lastScroll);
if(JawallMenu.isTablet){
clearTimeout(scrollid);
scrollid = setTimeout(function(){
lastScroll = $(window).scrollTop();
scrollid = setTimeout(function(){
if(lastScroll == $(window).scrollTop()){
jsidebar
.css('top', lastScroll + parseFloat(jsidebar.css('top', '').css('top')))
.css('position', 'absolute');
$(document).one('touchmove', function(){
jsidebar.css({position: 'fixed', top: ''});
});
}
}, 100);
}, 100);
}
});
}
if(JawallMenu.isTablet && !JawallMenu.isBindTablet){
$(document).on('touchmove', function(){
jsidebar.css({position: 'fixed', top: ''});
});
JawallMenu.isBindTablet = 1;
}
}
// check and load typography assert files if nessesary
window.jtypo = jQuery('.item-pagetypography .item-content');
if(!window.jtypo.length){
window.jtypo = jQuery('.typography .itemBody');
}
if(window.jtypo.length){
var css = document.createElement('link');
css.type = 'text/css';
css.rel= 'stylesheet';
css.href= JADef.tplurl + 'css/jtypo.css';
document.getElementsByTagName('head')[0].appendChild(css);
$.getScript(JADef.tplurl + 'js/jtypo.js');
}
});
to understand it better please see the error directly via google inspect at following page:
http://test6.harfrooz.com/117-more/18376-top-20-ufo-sightings
This error made my menus disabled and more issues. I would appreciate for any help to solve this error.
I am fairly certain this has been answered before here.
For normal javascript you can use:
window.innerHeight - the inner height of the browser window (in
pixels)
window.innerWidth - the inner width of the browser window (in
pixels)
The javascript below enables swipe left/right navigation. For some reason, I would like to call this function using URL such as <a href="javascript:function">. Certain URL will equivalent to left swipe, while another URL will equivalent to right swipe. Is this possible?
(function( window ){
var window = window,
document = window.document,
screen = window.screen,
touchSwipeListener = function( options ) {
// Private members
var track = {
startX: 0,
endX: 0
},
defaultOptions = {
moveHandler: function( direction ) {},
endHandler: function( direction ) {},
minLengthRatio: 0.3
},
getDirection = function() {
return track.endX > track.startX ? "prev" : "next";
},
isDeliberateMove = function() {
var minLength = Math.ceil( screen.width * options.minLengthRatio );
return Math.abs(track.endX - track.startX) > minLength;
},
extendOptions = function() {
for (var prop in defaultOptions) {
if ( defaultOptions.hasOwnProperty( prop ) ) {
options[ prop ] || ( options[ prop ] = defaultOptions[ prop ] );
}
}
},
handler = {
touchStart: function( event ) {
// At least one finger has touched the screen
if ( event.touches.length > 0 ) {
track.startX = event.touches[0].pageX;
}
},
touchMove: function( event ) {
if ( event.touches.length > 0 ) {
track.endX = event.touches[0].pageX;
options.moveHandler( getDirection(), isDeliberateMove() );
}
},
touchEnd: function( event ) {
var touches = event.changedTouches || event.touches;
if ( touches.length > 0 ) {
track.endX = touches[0].pageX;
isDeliberateMove() && options.endHandler( getDirection() );
}
}
};
extendOptions();
// Graceful degradation
if ( !document.addEventListener ) {
return {
on: function() {},
off: function() {}
}
}
return {
on: function() {
document.addEventListener('touchstart', handler.touchStart, false);
document.addEventListener('touchmove', handler.touchMove, false);
document.addEventListener('touchend', handler.touchEnd, false);
},
off: function() {
document.removeEventListener('touchstart', handler.touchStart);
document.removeEventListener('touchmove', handler.touchMove);
document.removeEventListener('touchend', handler.touchEnd);
}
}
}
// Expose global
window.touchSwipeListener = touchSwipeListener;
}( window ));
(function( window ){
var document = window.document,
// Element helpers
Util = {
addClass: function( el, className ) {
el.className += " " + className;
},
hasClass: function( el, className ) {
var re = new RegExp("\s?" + className, "gi");
return re.test( el.className );
},
removeClass: function( el, className ) {
var re = new RegExp("\s?" + className, "gi");
el.className = el.className.replace(re, "");
}
},
swipePageNav = (function() {
// Page sibling links like <link rel="prev" title=".." href=".." />
// See also http://diveintohtml5.info/semantics.html
var elLink = {
prev: null,
next: null
},
// Arrows, which slide in to indicate the shift direction
elArrow = {
prev: null,
next: null
},
swipeListener;
return {
init: function() {
this.retrievePageSiblings();
// Swipe navigation makes sense only if any of sibling page link available
if ( !elLink.prev && !elLink.next ) {
return;
}
this.renderArows();
this.syncUI();
},
syncUI: function() {
var that = this;
// Assign handlers for swipe "in progress" / "complete" events
swipeListener = new window.touchSwipeListener({
moveHandler: function( direction, isDeliberateMove ) {
if ( isDeliberateMove ) {
if ( elArrow[ direction ] && elLink[ direction ] ) {
Util.hasClass( elArrow[ direction ], "visible" ) ||
Util.addClass( elArrow[ direction ], "visible" );
}
} else {
Util.removeClass( elArrow.next, "visible" );
Util.removeClass( elArrow.prev, "visible" );
}
},
endHandler: function( direction ) {
that[ direction ] && that[ direction ]();
}
});
swipeListener.on();
},
retrievePageSiblings: function() {
elLink.prev = document.querySelector( "head > link[rel=prev]");
elLink.next = document.querySelector( "head > link[rel=next]");
},
renderArows: function() {
var renderArrow = function( direction ) {
var div = document.createElement("div");
div.className = "spn-direction-sign " + direction;
document.getElementsByTagName( "body" )[ 0 ].appendChild( div );
return div;
}
elArrow.next = renderArrow( "next" );
elArrow.prev = renderArrow( "prev" );
},
// When the shift (page swap) is requested, this overlay indicates that
// the current page is frozen and a new one is loading
showLoadingScreen: function() {
var div = document.createElement("div");
div.className = "spn-freezing-overlay";
document.getElementsByTagName( "body" )[ 0 ].appendChild( div );
},
// Request the previous sibling page
prev: function() {
if ( elLink.prev ) {
this.showLoadingScreen();
window.location.href = elLink.prev.href;
}
},
// Request the next sibling page
next: function() {
if ( elLink.next ) {
this.showLoadingScreen();
window.location.href = elLink.next.href;
}
}
}
}())
// Apply when document is ready
document.addEventListener( "DOMContentLoaded", function(){
document.removeEventListener( "DOMContentLoaded", arguments.callee, false );
try {
swipePageNav.init();
} catch (e) {
alert(e);
}
}, false );
}( window ));
You cannot do that. However, if it is for organization goals why not have two JavaScript files, each one with its own namespace. If you do this, you call only that namespace expected for the link clicked.
I have set up a fiddle
http://jsfiddle.net/austinind/aadcd/1/
what I am trying to achieve is a parallax effect.
the div should scoll up and down based on the scolling.
in my case the div only scrolls up:
function parallax(){
var scrolled = $(window).scrollTop();
var elempos=$(".bg2").position().top;
$('.bg2').css('top', elempos-(scrolled * 0.2) + 'px');
}
$(window).scroll(function(e){
parallax();
});
Take a look at following Js fiddle
Javscript for scroll
(function($) {
var types = ['DOMMouseScroll', 'mousewheel'];
if ($.event.fixHooks) {
for ( var i=types.length; i; ) {
$.event.fixHooks[ types[--i] ] = $.event.mouseHooks;
}
}
$.event.special.mousewheel = {
setup: function() {
if ( this.addEventListener ) {
for ( var i=types.length; i; ) {
this.addEventListener( types[--i], handler, false );
}
} else {
this.onmousewheel = handler;
}
},
teardown: function() {
if ( this.removeEventListener ) {
for ( var i=types.length; i; ) {
this.removeEventListener( types[--i], handler, false );
}
} else {
this.onmousewheel = null;
}
}
};
$.fn.extend({
mousewheel: function(fn) {
return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
},
unmousewheel: function(fn) {
return this.unbind("mousewheel", fn);
}
});
function handler(event) {
var orgEvent = event || window.event, args = [].slice.call( arguments, 1 ), delta = 0, returnValue = true, deltaX = 0, deltaY = 0;
event = $.event.fix(orgEvent);
event.type = "mousewheel";
// Old school scrollwheel delta
if ( orgEvent.wheelDelta ) { delta = orgEvent.wheelDelta/120; }
if ( orgEvent.detail ) { delta = -orgEvent.detail/3; }
// New school multidimensional scroll (touchpads) deltas
deltaY = delta;
// Gecko
if ( orgEvent.axis !== undefined && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
deltaY = 0;
deltaX = -1*delta;
}
// Webkit
if ( orgEvent.wheelDeltaY !== undefined ) { deltaY = orgEvent.wheelDeltaY/120; }
if ( orgEvent.wheelDeltaX !== undefined ) { deltaX = -1*orgEvent.wheelDeltaX/120; }
// Add event and delta to the front of the arguments
args.unshift(event, delta, deltaX, deltaY);
return ($.event.dispatch || $.event.handle).apply(this, args);
}
})(jQuery);
// OUR CODE
var winH = $(window).height();
$('.page').height(winH);
var c = 0;
var pagesN = $('.page').length;
$(document).bind('mousewheel', function(ev, delta) {
delta>0 ? --c : ++c ;
if(c===-1){
c=0;
}else if(c===pagesN){
c=pagesN-1;
}
var pagePos = $('.page').eq(c).position().top;
$('html, body').stop().animate({scrollTop: pagePos},1000);
return false;
});
Your script is working fine, your actual problem is your CSS
Remove
position:Fixed
for the class bg2, And it will work fine
Fiddle
http://jsfiddle.net/AmarnathRShenoy/aadcd/2/
How to detect first/last child in a row via isotope js?
I want to remove margins between elements.
This is layout.` // ====================== fitRows ======================
_fitRowsReset : function() {
this.fitRows = {
x : 0,
y : 0,
height : 0
};
},
_fitRowsLayout : function( $elems ) {
var instance = this,
containerWidth = this.element.width(),
props = this.fitRows;
$elems.each( function() {
var $this = $(this),
atomW = $this.outerWidth(true),
atomH = $this.outerHeight(true);
if ( props.x !== 0 && atomW + props.x > containerWidth ) {
// if this element cannot fit in the current row
props.x = 0;
props.y = props.height;
}
// position the atom
instance._pushPosition( $this, props.x, props.y );
props.height = Math.max( props.y + atomH, props.height );
props.x += atomW;
});
},
_fitRowsGetContainerSize : function () {
return { height : this.fitRows.height };
},
_fitRowsResizeChanged : function() {
return true;
},
`
Solution is simple
// ====================== fitRows ======================
_fitRowsReset : function() {
this.fitRows = {
x : 0,
y : 0,
height : 0
};
},
_fitRowsLayout : function( $elems ) {
var instance = this,
containerWidth = this.element.width(),
props = this.fitRows;
$elems.each( function() {
var $this = $(this),
atomW = $this.outerWidth(true),
atomH = $this.outerHeight(true);
$(this).removeClass('first last');
if (props.x == 0) {
$(this).addClass('first');
$(this).prev().addClass('last');
}
if ( props.x !== 0 && atomW + props.x > containerWidth ) {
// if this element cannot fit in the current row
props.x = 0;
props.y = props.height;
$(this).addClass('first');
$(this).prev().addClass('last');
}
// position the atom
instance._pushPosition( $this, props.x, props.y );
props.height = Math.max( props.y + atomH, props.height );
props.x += atomW;
});
},
_fitRowsGetContainerSize : function () {
return { height : this.fitRows.height };
},
_fitRowsResizeChanged : function() {
return true;
},
How can I stop the autoplay function of cSlider with an onmouseover event?
HTML:
<div id="da-slider" class="da-slider">
<div class="da-slide">
<p>Text</p>
</div>
<div class="da-slide">
<p>More text</p>
</div>
</div>
What I have tried so far with jQuery:
$(function() {
$('#da-slider').cslider({
autoplay : true,
bgincrement : 450
});
});
$('#da-slider').hover(function() {
if($('#daslider').autoplay('true')){
autoplay: false
}
}, function () {
autoplay: true
});
This is the one I'm using:
http://tympanus.net/codrops/2012/03/15/parallax-content-slider-with-css3-and-jquery/
This feature not implemented by default but this shouldn't stop you from implementing it on your own. Look at modified plugin code below (draw attention on stop and 'start' methods)
(function ($, undefined) {
/*
* Slider object.
*/
$.Slider = function (options, element) {
this.$el = $(element);
this._init(options);
};
$.Slider.defaults = {
current: 0, // index of current slide
bgincrement: 50, // increment the bg position (parallax effect) when sliding
autoplay: false, // slideshow on / off
interval: 4000 // time between transitions
};
$.Slider.prototype = {
_init: function (options) {
this.options = $.extend(true, {}, $.Slider.defaults, options);
this.$slides = this.$el.children('div.da-slide');
this.slidesCount = this.$slides.length;
this.current = this.options.current;
if (this.current < 0 || this.current >= this.slidesCount) {
this.current = 0;
}
this.$slides.eq(this.current).addClass('da-slide-current');
var $navigation = $('<nav class="da-dots"/>');
for (var i = 0; i < this.slidesCount; ++i) {
$navigation.append('<span/>');
}
$navigation.appendTo(this.$el);
this.$pages = this.$el.find('nav.da-dots > span');
this.$navNext = this.$el.find('span.da-arrows-next');
this.$navPrev = this.$el.find('span.da-arrows-prev');
this.isAnimating = false;
this.bgpositer = 0;
this.cssAnimations = Modernizr.cssanimations;
this.cssTransitions = Modernizr.csstransitions;
if (!this.cssAnimations || !this.cssAnimations) {
this.$el.addClass('da-slider-fb');
}
this._updatePage();
// load the events
this._loadEvents();
// slideshow
if (this.options.autoplay) {
this._startSlideshow();
}
},
_navigate: function (page, dir) {
var $current = this.$slides.eq(this.current), $next, _self = this;
if (this.current === page || this.isAnimating) return false;
this.isAnimating = true;
// check dir
var classTo, classFrom, d;
if (!dir) {
(page > this.current) ? d = 'next' : d = 'prev';
}
else {
d = dir;
}
if (this.cssAnimations && this.cssAnimations) {
if (d === 'next') {
classTo = 'da-slide-toleft';
classFrom = 'da-slide-fromright';
++this.bgpositer;
}
else {
classTo = 'da-slide-toright';
classFrom = 'da-slide-fromleft';
--this.bgpositer;
}
this.$el.css('background-position', this.bgpositer * this.options.bgincrement + '% 0%');
}
this.current = page;
$next = this.$slides.eq(this.current);
if (this.cssAnimations && this.cssAnimations) {
var rmClasses = 'da-slide-toleft da-slide-toright da-slide-fromleft da-slide-fromright';
$current.removeClass(rmClasses);
$next.removeClass(rmClasses);
$current.addClass(classTo);
$next.addClass(classFrom);
$current.removeClass('da-slide-current');
$next.addClass('da-slide-current');
}
// fallback
if (!this.cssAnimations || !this.cssAnimations) {
$next.css('left', (d === 'next') ? '100%' : '-100%').stop().animate({
left: '0%'
}, 1000, function () {
_self.isAnimating = false;
});
$current.stop().animate({
left: (d === 'next') ? '-100%' : '100%'
}, 1000, function () {
$current.removeClass('da-slide-current');
});
}
this._updatePage();
},
_updatePage: function () {
this.$pages.removeClass('da-dots-current');
this.$pages.eq(this.current).addClass('da-dots-current');
},
_startSlideshow: function () {
var _self = this;
this.slideshow = setTimeout(function () {
var page = (_self.current < _self.slidesCount - 1) ? page = _self.current + 1 : page = 0;
_self._navigate(page, 'next');
if (_self.options.autoplay) {
_self._startSlideshow();
}
}, this.options.interval);
},
page: function (idx) {
if (idx >= this.slidesCount || idx < 0) {
return false;
}
if (this.options.autoplay) {
clearTimeout(this.slideshow);
this.options.autoplay = false;
}
this._navigate(idx);
},
stop: function () {
if (this.options.autoplay) {
clearTimeout(this.slideshow);
this.options.autoplay = false;
}
},
start: function () {
this.options.autoplay = true;
this._startSlideshow();
},
_loadEvents: function () {
var _self = this;
this.$pages.on('click.cslider', function (event) {
_self.page($(this).index());
return false;
});
this.$navNext.on('click.cslider', function (event) {
if (_self.options.autoplay) {
clearTimeout(_self.slideshow);
_self.options.autoplay = false;
}
var page = (_self.current < _self.slidesCount - 1) ? page = _self.current + 1 : page = 0;
_self._navigate(page, 'next');
return false;
});
this.$navPrev.on('click.cslider', function (event) {
if (_self.options.autoplay) {
clearTimeout(_self.slideshow);
_self.options.autoplay = false;
}
var page = (_self.current > 0) ? page = _self.current - 1 : page = _self.slidesCount - 1;
_self._navigate(page, 'prev');
return false;
});
if (this.cssTransitions) {
if (!this.options.bgincrement) {
this.$el.on('webkitAnimationEnd.cslider animationend.cslider OAnimationEnd.cslider', function (event) {
if (event.originalEvent.animationName === 'toRightAnim4' || event.originalEvent.animationName === 'toLeftAnim4') {
_self.isAnimating = false;
}
});
}
else {
this.$el.on('webkitTransitionEnd.cslider transitionend.cslider OTransitionEnd.cslider', function (event) {
if (event.target.id === _self.$el.attr('id'))
_self.isAnimating = false;
});
}
}
}
};
var logError = function (message) {
if (this.console) {
console.error(message);
}
};
$.fn.cslider = function (options) {
if (typeof options === 'string') {
var args = Array.prototype.slice.call(arguments, 1);
this.each(function () {
var instance = $.data(this, 'cslider');
if (!instance) {
logError("cannot call methods on cslider prior to initialization; " +
"attempted to call method '" + options + "'");
return;
}
if (!$.isFunction(instance[options]) || options.charAt(0) === "_") {
logError("no such method '" + options + "' for cslider instance");
return;
}
instance[options].apply(instance, args);
});
}
else {
this.each(function () {
var instance = $.data(this, 'cslider');
if (!instance) {
$.data(this, 'cslider', new $.Slider(options, this));
}
});
}
return this;
};
})(jQuery);
With updated plugin you can pause and renew autiplaying with this code:
$('#da-slider').hover(
function () {
$(this).cslider("stop");
},
function () {
$(this).cslider("start");
}
);