How to scroll to certain div using Javascript in two pages - javascript

I have a compare button that appears in two different pages in my project. When I click on it calls a javascript function. I want to edit this function so it does the following: first to determine which page i'm in and then scroll up to a certain DIV in this page
Here is the function:
$(function() {
$('.cont_fontsicon').click(function compareProduct(event) {
event.preventDefault();
var currentId = $(this).attr('id');
console.log("currentId : "+currentId)
if(currentId.search("#") > 0){
var span= $(this).find('span.icon-copy_icon.icon_circle_base.icon_gray_878881.bord_rad30.selected');
if ($(this).find('span').is('.selected')){
return false;
evt.preventDefault();
}
var valueSplit=currentId.split('+#+');
var currentIdCat=valueSplit[0];
var currentIdStr=valueSplit[1];
var currentPrdType=valueSplit[2];
var resultClassName = $("#prodBoxId"+currentIdStr).attr('class');
var catId = document.getElementById("category_list").value;
var catIdStr = catId.trim();
var listSize = document.getElementById("productlistSize").value;
var comparisonProductType = document.getElementById("productType").value;
var catEndecaId=currentIdCat;
var catEndecaIdStr = catEndecaId.trim();
var userHead=document.getElementById("userHeader").value;
var errorMessagesValue=document.getElementById("errorMessagesContainer").value;
if(catIdStr == 0){
addProductToComparisonList(currentIdStr,$(this),listSize);
}
/*To be uncommented if we get more than one type of product for one category
*
* if(catIdStr == catEndecaIdStr && currentPrdType==comparisonProductType){ */
else if(catIdStr == catEndecaIdStr ){
if(userHead.search("Android")>0 || userHead.search("Mobi")>0)
{ if(listSize<2 ){
addProductToComparisonList(currentIdStr,$(this),listSize);
}
else
{
$("#prodBoxId"+currentIdStr).append('<div class="error_message"><div class="cont_img_alert inline_block"></div><span class="text_error_message inline_block">'+errorMessagesValue.compare2Products+'</span></div>');
var divPosition = $('#prodBoxId'+currentIdStr+' .error_message').offset();
$('html, body').animate({scrollTop: divPosition.top}, "fast");
}
}
else
{
if(listSize<3){
addProductToComparisonList(currentIdStr,$(this),listSize);
}
else
$("#prodBoxId"+currentIdStr).append('<div class="error_message"><div class="cont_img_alert inline_block"></div><span class="text_error_message inline_block">'+errorMessagesValue.compare3Products+'</span></div>');
var divPosition = $('#prodBoxId'+currentIdStr+' .error_message').offset();
$('html, body').animate({scrollTop: divPosition.top}, "fast");
}
}
//Fix for defect# 1660
if(catIdStr != 0 && catIdStr != catEndecaIdStr ){
$("#prodBoxId"+currentIdStr).append('<div class="error_message"><div class="cont_img_alert inline_block"></div><span class="text_error_message inline_block">'+errorMessagesValue.compareSameCategory+'</span></div>');
var divPosition = $('#prodBoxId'+currentIdStr+' .error_message').offset();
$('html, body').animate({scrollTop: divPosition.top}, "fast");
}
}
else {
var loggedInUser = document.getElementById("checkLoggedIn").value;
if(loggedInUser == 'true')
{
document.getElementById(currentId).href = '#';
/*showPopUp("wishlist",currentId);*/
$(this).closest('div').find('a#customPopup').trigger("click");
}
else
{
document.getElementById(currentId).submit();
}
}
});

Related

Commenting out JS gives dev console error?

I'm trying to comment out a block of code in my site's main.js file, since it makes my sticky header jump in a funny way upon scrolling.
When I comment out the sticky header section, it fixes the jumpy header issue.
However, it also throws the following error in Firefox or Chrome developer console:
Uncaught ReferenceError: jQuery is not defined
Here is the original unedited code:
jQuery(function ($) {
// Sticky Header
if ($('body').hasClass('sticky-header')) {
var header = $('#sp-header');
if($('#sp-header').length) {
var headerHeight = header.outerHeight();
var stickyHeaderTop = header.offset().top;
var stickyHeader = function () {
var scrollTop = $(window).scrollTop();
if (scrollTop > stickyHeaderTop) {
header.addClass('header-sticky');
} else {
if (header.hasClass('header-sticky')) {
header.removeClass('header-sticky');
}
}
};
stickyHeader();
$(window).scroll(function () {
stickyHeader();
});
}
if ($('body').hasClass('layout-boxed')) {
var windowWidth = header.parent().outerWidth();
header.css({"max-width": windowWidth, "left": "auto"});
}
}
// go to top
$(window).scroll(function () {
if ($(this).scrollTop() > 100) {
$('.sp-scroll-up').fadeIn();
} else {
$('.sp-scroll-up').fadeOut(400);
}
});
$('.sp-scroll-up').click(function () {
$("html, body").animate({
scrollTop: 0
}, 600);
return false;
});
// Preloader
$(window).on('load', function () {
$('.sp-preloader').fadeOut(500, function() {
$(this).remove();
});
});
//mega menu
$('.sp-megamenu-wrapper').parent().parent().css('position', 'static').parent().css('position', 'relative');
$('.sp-menu-full').each(function () {
$(this).parent().addClass('menu-justify');
});
// Offcanvs
$('#offcanvas-toggler').on('click', function (event) {
event.preventDefault();
$('.offcanvas-init').addClass('offcanvas-active');
});
$('.close-offcanvas, .offcanvas-overlay').on('click', function (event) {
event.preventDefault();
$('.offcanvas-init').removeClass('offcanvas-active');
});
$(document).on('click', '.offcanvas-inner .menu-toggler', function(event){
event.preventDefault();
$(this).closest('.menu-parent').toggleClass('menu-parent-open').find('>.menu-child').slideToggle(400);
});
//Tooltip
$('[data-toggle="tooltip"]').tooltip();
// Article Ajax voting
$('.article-ratings .rating-star').on('click', function (event) {
event.preventDefault();
var $parent = $(this).closest('.article-ratings');
var request = {
'option': 'com_ajax',
'template': template,
'action': 'rating',
'rating': $(this).data('number'),
'article_id': $parent.data('id'),
'format': 'json'
};
$.ajax({
type: 'POST',
data: request,
beforeSend: function () {
$parent.find('.fa-spinner').show();
},
success: function (response) {
var data = $.parseJSON(response);
$parent.find('.ratings-count').text(data.message);
$parent.find('.fa-spinner').hide();
if(data.status)
{
$parent.find('.rating-symbol').html(data.ratings)
}
setTimeout(function(){
$parent.find('.ratings-count').text('(' + data.rating_count + ')')
}, 3000);
}
});
});
// Cookie consent
$('.sp-cookie-allow').on('click', function(event) {
event.preventDefault();
var date = new Date();
date.setTime(date.getTime() + (30 * 24 * 60 * 60 * 1000));
var expires = "; expires=" + date.toGMTString();
document.cookie = "spcookie_status=ok" + expires + "; path=/";
$(this).closest('.sp-cookie-consent').fadeOut();
});
$(".btn-group label:not(.active)").click(function()
{
var label = $(this);
var input = $('#' + label.attr('for'));
if (!input.prop('checked')) {
label.closest('.btn-group').find("label").removeClass('active btn-success btn-danger btn-primary');
if (input.val() === '') {
label.addClass('active btn-primary');
} else if (input.val() == 0) {
label.addClass('active btn-danger');
} else {
label.addClass('active btn-success');
}
input.prop('checked', true);
input.trigger('change');
}
var parent = $(this).parents('#attrib-helix_ultimate_blog_options');
if( parent ){
showCategoryItems( parent, input.val() )
}
});
$(".btn-group input[checked=checked]").each(function()
{
if ($(this).val() == '') {
$("label[for=" + $(this).attr('id') + "]").addClass('active btn btn-primary');
} else if ($(this).val() == 0) {
$("label[for=" + $(this).attr('id') + "]").addClass('active btn btn-danger');
} else {
$("label[for=" + $(this).attr('id') + "]").addClass('active btn btn-success');
}
var parent = $(this).parents('#attrib-helix_ultimate_blog_options');
if( parent ){
parent.find('*[data-showon]').each( function() {
$(this).hide();
})
}
});
function showCategoryItems(parent, value){
var controlGroup = parent.find('*[data-showon]');
controlGroup.each( function() {
var data = $(this).attr('data-showon')
data = typeof data !== 'undefined' ? JSON.parse( data ) : []
if( data.length > 0 ){
if(typeof data[0].values !== 'undefined' && data[0].values.includes( value )){
$(this).slideDown();
}else{
$(this).hide();
}
}
})
}
$(window).on('scroll', function(){
var scrollBar = $(".sp-reading-progress-bar");
if( scrollBar.length > 0 ){
var s = $(window).scrollTop(),
d = $(document).height(),
c = $(window).height();
var scrollPercent = (s / (d - c)) * 100;
const postition = scrollBar.data('position')
if( postition === 'top' ){
// var sticky = $('.header-sticky');
// if( sticky.length > 0 ){
// sticky.css({ top: scrollBar.height() })
// }else{
// sticky.css({ top: 0 })
// }
}
scrollBar.css({width: `${scrollPercent}%` })
}
})
});
The portion I want to comment out is just the "sticky header" block.
I tried to do so like this:
jQuery(function ($) {
// Sticky Header
/* if ($('body').hasClass('sticky-header')) {
var header = $('#sp-header');
if($('#sp-header').length) {
var headerHeight = header.outerHeight();
var stickyHeaderTop = header.offset().top;
var stickyHeader = function () {
var scrollTop = $(window).scrollTop();
if (scrollTop > stickyHeaderTop) {
header.addClass('header-sticky');
} else {
if (header.hasClass('header-sticky')) {
header.removeClass('header-sticky');
}
}
};
stickyHeader();
$(window).scroll(function () {
stickyHeader();
});
}
if ($('body').hasClass('layout-boxed')) {
var windowWidth = header.parent().outerWidth();
header.css({"max-width": windowWidth, "left": "auto"});
}
}
*/
// go to top
$(window).scroll(function () {
if ($(this).scrollTop() > 100) {
$('.sp-scroll-up').fadeIn();
} else {
$('.sp-scroll-up').fadeOut(400);
}
});
$('.sp-scroll-up').click(function () {
$("html, body").animate({
scrollTop: 0
}, 600);
return false;
});
// Preloader
$(window).on('load', function () {
$('.sp-preloader').fadeOut(500, function() {
$(this).remove();
});
});
//mega menu
$('.sp-megamenu-wrapper').parent().parent().css('position', 'static').parent().css('position', 'relative');
$('.sp-menu-full').each(function () {
$(this).parent().addClass('menu-justify');
});
// Offcanvs
$('#offcanvas-toggler').on('click', function (event) {
event.preventDefault();
$('.offcanvas-init').addClass('offcanvas-active');
});
$('.close-offcanvas, .offcanvas-overlay').on('click', function (event) {
event.preventDefault();
$('.offcanvas-init').removeClass('offcanvas-active');
});
$(document).on('click', '.offcanvas-inner .menu-toggler', function(event){
event.preventDefault();
$(this).closest('.menu-parent').toggleClass('menu-parent-open').find('>.menu-child').slideToggle(400);
});
//Tooltip
$('[data-toggle="tooltip"]').tooltip();
// Article Ajax voting
$('.article-ratings .rating-star').on('click', function (event) {
event.preventDefault();
var $parent = $(this).closest('.article-ratings');
var request = {
'option': 'com_ajax',
'template': template,
'action': 'rating',
'rating': $(this).data('number'),
'article_id': $parent.data('id'),
'format': 'json'
};
$.ajax({
type: 'POST',
data: request,
beforeSend: function () {
$parent.find('.fa-spinner').show();
},
success: function (response) {
var data = $.parseJSON(response);
$parent.find('.ratings-count').text(data.message);
$parent.find('.fa-spinner').hide();
if(data.status)
{
$parent.find('.rating-symbol').html(data.ratings)
}
setTimeout(function(){
$parent.find('.ratings-count').text('(' + data.rating_count + ')')
}, 3000);
}
});
});
// Cookie consent
$('.sp-cookie-allow').on('click', function(event) {
event.preventDefault();
var date = new Date();
date.setTime(date.getTime() + (30 * 24 * 60 * 60 * 1000));
var expires = "; expires=" + date.toGMTString();
document.cookie = "spcookie_status=ok" + expires + "; path=/";
$(this).closest('.sp-cookie-consent').fadeOut();
});
$(".btn-group label:not(.active)").click(function()
{
var label = $(this);
var input = $('#' + label.attr('for'));
if (!input.prop('checked')) {
label.closest('.btn-group').find("label").removeClass('active btn-success btn-danger btn-primary');
if (input.val() === '') {
label.addClass('active btn-primary');
} else if (input.val() == 0) {
label.addClass('active btn-danger');
} else {
label.addClass('active btn-success');
}
input.prop('checked', true);
input.trigger('change');
}
var parent = $(this).parents('#attrib-helix_ultimate_blog_options');
if( parent ){
showCategoryItems( parent, input.val() )
}
});
$(".btn-group input[checked=checked]").each(function()
{
if ($(this).val() == '') {
$("label[for=" + $(this).attr('id') + "]").addClass('active btn btn-primary');
} else if ($(this).val() == 0) {
$("label[for=" + $(this).attr('id') + "]").addClass('active btn btn-danger');
} else {
$("label[for=" + $(this).attr('id') + "]").addClass('active btn btn-success');
}
var parent = $(this).parents('#attrib-helix_ultimate_blog_options');
if( parent ){
parent.find('*[data-showon]').each( function() {
$(this).hide();
})
}
});
function showCategoryItems(parent, value){
var controlGroup = parent.find('*[data-showon]');
controlGroup.each( function() {
var data = $(this).attr('data-showon')
data = typeof data !== 'undefined' ? JSON.parse( data ) : []
if( data.length > 0 ){
if(typeof data[0].values !== 'undefined' && data[0].values.includes( value )){
$(this).slideDown();
}else{
$(this).hide();
}
}
})
}
$(window).on('scroll', function(){
var scrollBar = $(".sp-reading-progress-bar");
if( scrollBar.length > 0 ){
var s = $(window).scrollTop(),
d = $(document).height(),
c = $(window).height();
var scrollPercent = (s / (d - c)) * 100;
const postition = scrollBar.data('position')
if( postition === 'top' ){
// var sticky = $('.header-sticky');
// if( sticky.length > 0 ){
// sticky.css({ top: scrollBar.height() })
// }else{
// sticky.css({ top: 0 })
// }
}
scrollBar.css({width: `${scrollPercent}%` })
}
})
});
This is effectively commenting out the section and fixing the header bug, but it's also throwing the jQuery not defined error. Is there a more appropriate method for commenting out the section?
Note that the same error occurs if I simply delete the entire sticky header block.
Thank you from a newbie for any help!
Simply try single line comments for each line in the code block. If you have VS Code or similar IDE, then it should do it for you. Select all the lines and press CTRL + / or CMD + / (Mac).
// if ($('body').hasClass('sticky-header')) {
// var header = $('#sp-header');
// if($('#sp-header').length) {
// var headerHeight = header.outerHeight();
// var stickyHeaderTop = header.offset().top;
// var stickyHeader = function () {
// var scrollTop = $(window).scrollTop();
// if (scrollTop > stickyHeaderTop) {
// header.addClass('header-sticky');
// } else {
// if (header.hasClass('header-sticky')) {
// header.removeClass('header-sticky');
// }
// }
// };
// stickyHeader();
// $(window).scroll(function () {
// stickyHeader();
// });
// }
// if ($('body').hasClass('layout-boxed')) {
// var windowWidth = header.parent().outerWidth();
// header.css({"max-width": windowWidth, "left": "auto"});
// }
// }

Hover to click in wordpress menu

I used a theme that I changed to show sub menu horizontally, now I want to show sub menu onClick and not on hover, I'm not good at javascript but I think that this code is about the navigation menu:
var nav = {
init: function() {
// Add parent class to items with sub-menus
jQuery("ul.sub-menu").parent().addClass('parent');
var menuTop = 40;
var menuTopReset = 80;
// Enable hover dropdowns for window size above tablet width
jQuery("nav").find(".menu li.parent").hoverIntent({
over: function() {
if (jQuery('#container').width() > 767 || jQuery('body').hasClass('responsive-fixed')) {
// Setup menuLeft variable, with main menu value
var subMenuWidth = jQuery(this).find('ul.sub-menu').first().outerWidth(true);
var mainMenuItemWidth = jQuery(this).outerWidth(true);
var menuLeft = '-' + (Math.round(subMenuWidth / 2) - Math.round(mainMenuItemWidth / 2)) + 'px';
var menuContainer = jQuery(this).parent().parent();
// Check if this is the top bar menu
if (menuContainer.hasClass("top-menu")) {
if (menuContainer.parent().parent().parent().hasClass("top-bar-menu-right")) {
menuLeft = "";
} else {
menuLeft = "-1px";
}
menuTop = 30;
menuTopReset = 40;
} else if (menuContainer.hasClass("header-menu")) {
menuLeft = "-1px";
menuTop = 28;
menuTopReset = 40;
} else if (menuContainer.hasClass("mini-menu") || menuContainer.parent().hasClass("mini-menu")) {
menuTop = 40;
menuTopReset = 58;
} else {
menuTop = 44;
menuTopReset = 64;
}
// Check if second level dropdown
if (jQuery(this).find('ul.sub-menu').first().parent().parent().hasClass("sub-menu")) {
menuLeft = jQuery(this).find('ul.sub-menu').first().parent().parent().outerWidth(true) - 2;
}
jQuery(this).find('ul.sub-menu').first().addClass('show-dropdown').css('top', menuTop);
}
},
out:function() {
if (jQuery('#container').width() > 767 || jQuery('body').hasClass('responsive-fixed')) {
jQuery(this).find('ul.sub-menu').first().removeClass('show-dropdown').css('top', menuTopReset);
}
}
});
jQuery(".shopping-bag-item").live("mouseenter", function() {
var subMenuTop = 44;
if (jQuery(this).parent().parent().hasClass("mini-menu")) {
subMenuTop = 40;
}
jQuery(this).find('ul.sub-menu').first().addClass('show-dropdown').css('top', subMenuTop);
}).live("mouseleave", function() {
if (jQuery('#container').width() > 767 || jQuery('body').hasClass('responsive-fixed')) {
jQuery(this).find('ul.sub-menu').first().removeClass('show-dropdown').css('top', 64);
}
});
// Toggle Mobile Nav show/hide
jQuery('a.show-main-nav').on('click', function(e) {
e.preventDefault();
if (jQuery('#main-navigation').is(':visible')) {
jQuery('.header-overlay .header-wrap').css('position', '');
} else {
jQuery('.header-overlay .header-wrap').css('position', 'relative');
}
jQuery('#main-navigation').toggle();
});
jQuery(window).smartresize(function(){
if (jQuery('#container').width() > 767 || jQuery('body').hasClass('responsive-fixed')) {
var menus = jQuery('nav').find('ul.menu');
menus.each(function() {
jQuery(this).css("display", "");
});
}
});
// Set current language to top bar item
var currentLanguage = jQuery('li.aux-languages').find('.current-language span').text();
if (currentLanguage !== "") {
jQuery('li.aux-languages > a').text(currentLanguage);
}
},
hideNav: function(subnav) {
setTimeout(function() {
if (subnav.css("opacity") === "0") {
subnav.css("display", "none");
}
}, 300);
}
};
I tried to replace "hoverIntent" by "click" but it doesn't work, what can I do?
What's happening when someone currently hovers, it does one thing while hovering and when they leave it has to d a sort of cleanup which are the two functions within hoverintent, namely over and out so the code would need to be split into two event listeners one for click of the element and one for blur
I have chained the two listeners to the inital selector so it should all work.
var nav = {
init: function() {
// Add parent class to items with sub-menus
jQuery("ul.sub-menu").parent().addClass('parent');
var menuTop = 40;
var menuTopReset = 80;
// Enable click dropdowns for window size above tablet width
jQuery("nav").find(".menu li.parent").on('click', function (event) {
if($(event.target).parent().hasClass('menu-item-has-children')){
event.preventDefault();
};
if (jQuery('#container').width() > 767 || jQuery('body').hasClass('responsive-fixed')) {
// Setup menuLeft variable, with main menu value
var subMenuWidth = jQuery(this).find('ul.sub-menu').first().outerWidth(true);
var mainMenuItemWidth = jQuery(this).outerWidth(true);
var menuLeft = '-' + (Math.round(subMenuWidth / 2) - Math.round(mainMenuItemWidth / 2)) + 'px';
var menuContainer = jQuery(this).parent().parent();
// Check if this is the top bar menu
if (menuContainer.hasClass("top-menu")) {
if (menuContainer.parent().parent().parent().hasClass("top-bar-menu-right")) {
menuLeft = "";
} else {
menuLeft = "-1px";
}
menuTop = 30;
menuTopReset = 40;
} else if (menuContainer.hasClass("header-menu")) {
menuLeft = "-1px";
menuTop = 28;
menuTopReset = 40;
} else if (menuContainer.hasClass("mini-menu") || menuContainer.parent().hasClass("mini-menu")) {
menuTop = 40;
menuTopReset = 58;
} else {
menuTop = 44;
menuTopReset = 64;
}
// Check if second level dropdown
if (jQuery(this).find('ul.sub-menu').first().parent().parent().hasClass("sub-menu")) {
menuLeft = jQuery(this).find('ul.sub-menu').first().parent().parent().outerWidth(true) - 2;
}
jQuery(this).find('ul.sub-menu').first().addClass('show-dropdown').css('top', menuTop);
}
}).on('mouseleave',function () {
if (jQuery('#container').width() > 767 || jQuery('body').hasClass('responsive-fixed')) {
jQuery(this).find('ul.sub-menu').first().removeClass('show-dropdown').css('top', menuTopReset);
}
});
// Toggle Mobile Nav show/hide
jQuery('a.show-main-nav').on('click', function(e) {
e.preventDefault();
if (jQuery('#main-navigation').is(':visible')) {
jQuery('.header-overlay .header-wrap').css('position', '');
} else {
jQuery('.header-overlay .header-wrap').css('position', 'relative');
}
jQuery('#main-navigation').toggle();
});
jQuery(window).smartresize(function(){
if (jQuery('#container').width() > 767 || jQuery('body').hasClass('responsive-fixed')) {
var menus = jQuery('nav').find('ul.menu');
menus.each(function() {
jQuery(this).css("display", "");
});
}
});
// Set current language to top bar item
var currentLanguage = jQuery('li.aux-languages').find('.current-language span').text();
if (currentLanguage !== "") {
jQuery('li.aux-languages > a').text(currentLanguage);
}
},
hideNav: function(subnav) {
setTimeout(function() {
if (subnav.css("opacity") === "0") {
subnav.css("display", "none");
}
}, 300);
}
};
That seems overly complicated. Do you have a link to the live version?
Usually, when doing a click-to-see submenu with a clickable parent, I set a variable to see whether the menu is open, if not dont go to link. if so, go to link.
An example: http://codepen.io/jhealey5/pen/iLgom
var $handle = $('.sub-menu').prev();
var opened = 0;
$handle.on('click', function(e){
if (opened) {
window.location.href = $(this).attr('href');
} else {
e.preventDefault();
e.stopPropagation();
$('.sub-menu').slideToggle();
opened = 1;
}
});
$('html').on('click', function(){
if (opened) {
$('.sub-menu').slideToggle();
opened = 0;
}
});
Depending on that menu of yours, you could use something similar. But it's using a lot of code for a menu.

jQuery extended function preserve chaining based on condition

I'm trying to create a jquery build it function which will allow me to change maxHeight or retrieve maxHeight from an element or a set of elements.
setting a maxHeight by : $('.element-class').maxHeight(500); works great.
However when I dont pass a parameter in maxHeight() I'd like to return the element's height and not preserve jquery chainability:
Source:
(function($) {
// jQuery plugin definition
$.fn.maxHeight = function() {
var params = arguments;
var $this = this;
console.log(params);
this.each(function() {
var $t = $(this);
if (params.length > 0 ) {
if (params[0] == 'none'){
$t.get(0).style.maxHeight = 'none';
} else {
$t.get(0).style.maxHeight = params[0] + 'px';
}
return $t;
} else {
var h = (($t.get(0).style.maxHeight && $t.get(0).style.maxHeight != '') ? parseInt($t.get(0).style.maxHeight) : 0);
console.log(h);
return h;
}
});
return this;
};
})(jQuery);
I think you have to make a callback function, didn't have time to test it but try this:
(function($) {
// jQuery plugin definition
$.fn.maxHeight = function(a, callback) {
var $this = this;
this.each(function() {
var $t = $(this);
if (!a) {
$t.get(0).style.maxHeight = 'none';
} else {
$t.get(0).style.maxHeight = a + 'px';
}
callback($t);
} else {
var h = (($t.get(0).style.maxHeight && $t.get(0).style.maxHeight != '') ? parseInt($t.get(0).style.maxHeight) : 0);
callback(h);
}
});
};
})(jQuery);
and then do something like this:
$('.element-class').maxHeight(500 , function(result){
// use your result or not
// Want to chain
return result;
});

JQuery: How to refactor JQuery interaction with interface?

The question is very simple but also a bit theoretical.
Let's imagine you have a long JQuery script which modifies and animate the graphics of the web site. It's objective is to handle the UI. The UI has to be responsive so the real need for this JQuery is to mix some state of visualization (sportlist visible / not visible) with some need due to Responsive UI.
Thinking from an MVC / AngularJS point of view. How should a programmer handle that?
How to refactor JS / JQuery code to implement separation of concerns described by MVC / AngularJS?
I provide an example of JQuery code to speak over something concrete.
$.noConflict();
jQuery(document).ready(function ($) {
/*variables*/
var sliderMenuVisible = false;
/*dom object variables*/
var $document = $(document);
var $window = $(window);
var $pageHost = $(".page-host");
var $sportsList = $("#sports-list");
var $mainBody = $("#mainBody");
var $toTopButtonContainer = $('#to-top-button-container');
/*eventHandlers*/
var displayError = function (form, error) {
$("#error").html(error).removeClass("hidden");
};
var calculatePageLayout = function () {
$pageHost.height($(window).height());
if ($window.width() > 697) {
$sportsList.removeAttr("style");
$mainBody
.removeAttr("style")
.unbind('touchmove')
.removeClass('stop-scroll');
if ($(".betslip-access-button")[0]) {
$(".betslip-access-button").fadeIn(500);
}
sliderMenuVisible = false;
} else {
$(".betslip-access-button").fadeOut(500);
}
};
var formSubmitHandler = function (e) {
var $form = $(this);
// We check if jQuery.validator exists on the form
if (!$form.valid || $form.valid()) {
$.post($form.attr("action"), $form.serializeArray())
.done(function (json) {
json = json || {};
// In case of success, we redirect to the provided URL or the same page.
if (json.success) {
window.location = json.redirect || location.href;
} else if (json.error) {
displayError($form, json.error);
}
})
.error(function () {
displayError($form, "Login service not available, please try again later.");
});
}
// Prevent the normal behavior since we opened the dialog
e.preventDefault();
};
//preliminary functions//
$window.on("load", calculatePageLayout);
$window.on("resize", calculatePageLayout);
//$(document).on("click","a",function (event) {
// event.preventDefault();
// window.location = $(this).attr("href");
//});
/*evet listeners*/
$("#login-form").submit(formSubmitHandler);
$("section.navigation").on("shown hidden", ".collapse", function (e) {
var $icon = $(this).parent().children("button").children("i").first();
if (!$icon.hasClass("icon-spin")) {
if (e.type === "shown") {
$icon.removeClass("icon-caret-right").addClass("icon-caret-down");
} else {
$icon.removeClass("icon-caret-down").addClass("icon-caret-right");
}
}
toggleBackToTopButton();
e.stopPropagation();
});
$(".collapse[data-src]").on("show", function () {
var $this = $(this);
if (!$this.data("loaded")) {
var $icon = $this.parent().children("button").children("i").first();
$icon.removeClass("icon-caret-right icon-caret-down").addClass("icon-refresh icon-spin");
console.log("added class - " + $icon.parent().html());
$this.load($this.data("src"), function () {
$this.data("loaded", true);
$icon.removeClass("icon-refresh icon-spin icon-caret-right").addClass("icon-caret-down");
console.log("removed class - " + $icon.parent().html());
});
}
toggleBackToTopButton();
});
$("#sports-list-button").on("click", function (e)
{
if (!sliderMenuVisible)
{
$sportsList.animate({ left: "0" }, 500);
$mainBody.animate({ left: "85%" }, 500)
.bind('touchmove', function (e2) { e2.preventDefault(); })
.addClass('stop-scroll');
$(".betslip-access-button").fadeOut(500);
sliderMenuVisible = true;
}
else
{
$sportsList.animate({ left: "-85%" }, 500).removeAttr("style");
$mainBody.animate({ left: "0" }, 500).removeAttr("style")
.unbind('touchmove').removeClass('stop-scroll');
$(".betslip-access-button").fadeIn(500);
sliderMenuVisible = false;
}
e.preventDefault();
});
$mainBody.on("click", function (e) {
if (sliderMenuVisible) {
$sportsList.animate({ left: "-85%" }, 500).removeAttr("style");
$mainBody.animate({ left: "0" }, 500)
.removeAttr("style")
.unbind('touchmove')
.removeClass('stop-scroll');
$(".betslip-access-button").fadeIn(500);
sliderMenuVisible = false;
e.stopPropagation();
e.preventDefault();
}
});
$document.on("click", "div.event-info", function () {
if (!sliderMenuVisible) {
var url = $(this).data("url");
if (url) {
window.location = url;
}
}
});
function whatDecimalSeparator() {
var n = 1.1;
n = n.toLocaleString().substring(1, 2);
return n;
}
function getValue(textBox) {
var value = textBox.val();
var separator = whatDecimalSeparator();
var old = separator == "," ? "." : ",";
var converted = parseFloat(value.replace(old, separator));
return converted;
}
$(document).on("click", "a.selection", function (e) {
if (sliderMenuVisible) {
return;
}
var $this = $(this);
var isLive = $this.data("live");
var url = "/" + _language + "/BetSlip/Add/" + $this.data("selection") + "?odds=" + $this.data("odds") + "&live=" + isLive;
var urlHoveringBtn = "/" + _language + '/BetSlip/AddHoveringButton/' + $this.data("selection") + "?odds=" + $this.data("odds") + "&live=" + isLive;
$.ajax(urlHoveringBtn).done(function (dataBtn) {
if ($(".betslip-access-button").length == 0 && dataBtn.length > 0) {
$("body").append(dataBtn);
}
});
$.ajax(url).done(function (data) {
if ($(".betslip-access").length == 0 && data.length > 0) {
$(".navbar").append(data);
$pageHost.addClass("betslipLinkInHeader");
var placeBetText = $("#live-betslip-popup").data("placebettext");
var continueText = $("#live-betslip-popup").data("continuetext");
var useQuickBetLive = $("#live-betslip-popup").data("usequickbetlive").toLowerCase() == "true";
var useQuickBetPrematch = $("#live-betslip-popup").data("usequickbetprematch").toLowerCase() == "true";
if ((isLive && useQuickBetLive) || (!isLive && useQuickBetPrematch)) {
var dialog = $("#live-betslip-popup").dialog({
modal: true,
dialogClass: "fixed-dialog"
});
dialog.dialog("option", "buttons", [
{
text: placeBetText,
click: function () {
var placeBetUrl = "/" + _language + "/BetSlip/QuickBet?amount=" + getValue($("#live-betslip-popup-amount")) + "&live=" + $this.data("live");
window.location = placeBetUrl;
}
},
{
text: continueText,
click: function () {
dialog.dialog("close");
}
}
]);
}
}
if (data.length > 0) {
$this.addClass("in-betslip");
}
});
e.preventDefault();
});
$(document).on("click", "a.selection.in-betslip", function (e) {
if (sliderMenuVisible) {
return;
}
var $this = $(this);
var isLive = $this.data("live");
var url = "/" + _language + "/BetSlip/RemoveAjax/" + $this.data("selection") + "?odds=" + $this.data("odds") + "&live=" + isLive;
$.ajax(url).done(function (data) {
if (data.success) {
$this.removeClass("in-betslip");
if (data.selections == 0) {
$(".betslip-access").remove();
$(".betslip-access-button").remove();
$(".page-host").removeClass("betslipLinkInHeader");
}
}
});
e.preventDefault();
});
$("section.betslip .total-stake button.live-betslip-popup-plusminus").click(function (e) {
if (sliderMenuVisible) {
return;
}
e.preventDefault();
var action = $(this).data("action");
var amount = parseFloat($(this).data("amount"));
if (!isNumeric(amount)) amount = 1;
var totalStake = $("#live-betslip-popup-amount").val();
if (isNumeric(totalStake)) {
totalStake = parseFloat(totalStake);
} else {
totalStake = 0;
}
if (action == "decrease") {
if (totalStake < 1.21) {
totalStake = 1.21;
}
totalStake -= amount;
} else if (action == "increase") {
totalStake += amount;
}
$("#live-betslip-popup-amount").val(totalStake);
});
toggleBackToTopButton();
function toggleBackToTopButton() {
isScrollable() ? $toTopButtonContainer.show() : $toTopButtonContainer.hide();
}
$("#to-top-button").on("click", function () { $("#mainBody").animate({ scrollTop: 0 }); });
function isScrollable() {
return $("section.navigation").height() > $(window).height() + 93;
}
var isNumeric = function (string) {
return !isNaN(string) && isFinite(string) && string != "";
};
function enableQuickBet() {
}
});
My steps in such cases are:
First of all write (at least) one controller
Replace all eventhandler with ng-directives (ng-click most of all)
Pull the view state out of the controller with ng-style and ng-class. In most of all cases ng-show and ng-hide will be sufficed
If there is code that will be used more than once, consider writing a directive.
And code that has nothing todo with the view state - put the code in a service
write unit tests (i guess there is no one until now:) )

JavaScript Preventing User Text Selection

Something in this Curtains.js plug-in is preventing user text selection on my page. When I comment it out, I'm able to select text, when I put it back in, I'm not. Can someone identify it and tell me how to fix it? I'm at my wit's end.
<script>
/*
* Curtain.js - Create an unique page transitioning system
* ---
* Version: 2
* Copyright 2011, Victor Coulon (http://victorcoulon.fr)
* Released under the MIT Licence
*/
(function ( $, window, document, undefined ) {
var pluginName = 'curtain',
defaults = {
scrollSpeed: 400,
bodyHeight: 0,
linksArray: [],
mobile: false,
scrollButtons: {},
controls: null,
curtainLinks: '.curtain-links',
enableKeys: true,
easing: 'swing',
disabled: false,
nextSlide: function() {},
prevSlide: function() {}
};
// The actual plugin constructor
function Plugin( element, options ) {
var self = this;
// Public attributes
this.element = element;
this.options = $.extend( {}, defaults, options) ;
this._defaults = defaults;
this._name = pluginName;
this._ignoreHashChange = false;
this.init();
}
Plugin.prototype = {
init: function () {
var self = this;
// Cache element
this.$element = $(this.element);
this.$li = $(this.element).find('>li');
this.$liLength = this.$li.length;
self.$windowHeight = $(window).height();
self.$elDatas = {};
self.$document = $(document);
self.$window = $(window);
self.webkit = (navigator.userAgent.indexOf('Chrome') > -1 || navigator.userAgent.indexOf("Safari") > -1);
$.Android = (navigator.userAgent.match(/Android/i));
$.iPhone = ((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i)));
$.iPad = ((navigator.userAgent.match(/iPad/i)));
$.iOs4 = (/OS [1-4]_[0-9_]+ like Mac OS X/i.test(navigator.userAgent));
if($.iPhone || $.iPad || $.Android || self.options.disabled){
this.options.mobile = true;
this.$li.css({position:'relative'});
this.$element.find('.fixed').css({position:'absolute'});
}
if(this.options.mobile){
this.scrollEl = this.$element;
} else if($.browser.mozilla || $.browser.msie) {
this.scrollEl = $('html');
} else {
this.scrollEl = $('body');
}
if(self.options.controls){
self.options.scrollButtons['up'] = $(self.options.controls).find('[href="#up"]');
self.options.scrollButtons['down'] = $(self.options.controls).find('[href="#down"]');
if(!$.iOs4 && ($.iPhone || $.iPad)){
self.$element.css({
position:'fixed',
top:0,
left:0,
right:0,
bottom:0,
'-webkit-overflow-scrolling':'touch',
overflow:'auto'
});
$(self.options.controls).css({position:'absolute'});
}
}
// When all image is loaded
var callbackImageLoaded = function(){
self.setDimensions();
self.$li.eq(0).addClass('current');
self.setCache();
if(!self.options.mobile){
if(self.$li.eq(1).length)
self.$li.eq(1).nextAll().addClass('hidden');
}
self.setEvents();
self.setLinks();
self.isHashIsOnList(location.hash.substring(1));
};
if(self.$element.find('img').length)
self.imageLoaded(callbackImageLoaded);
else
callbackImageLoaded();
},
// Events
scrollToPosition: function (direction){
var position = null,
self = this;
if(self.scrollEl.is(':animated')){
return false;
}
if(direction === 'up' || direction == 'down'){
// Keyboard event
var $next = (direction === 'up') ? self.$current.prev() : self.$current.next();
// Step in the current panel ?
if(self.$step){
if(!self.$current.find('.current-step').length){
self.$step.eq(0).addClass('current-step');
}
var $nextStep = (direction === 'up') ? self.$current.find('.current-step').prev('.step') : self.$current.find('.current-step').next('.step');
if($nextStep.length) {
position = (self.options.mobile) ? $nextStep.position().top + self.$elDatas[self.$current.index()]['data-position'] : $nextStep.position().top + self.$elDatas[self.$current.index()]['data-position'];
}
}
position = position || ((self.$elDatas[$next.index()] === undefined) ? null : self.$elDatas[$next.index()]['data-position']);
if(position !== null){
self.scrollEl.animate({
scrollTop: position
}, self.options.scrollSpeed, self.options.easing);
}
} else if(direction === 'top'){
self.scrollEl.animate({
scrollTop:0
}, self.options.scrollSpeed, self.options.easing);
} else if(direction === 'bottom'){
self.scrollEl.animate({
scrollTop:self.options.bodyHeight
}, self.options.scrollSpeed, self.options.easing);
} else {
var index = $("#"+direction).index(),
speed = Math.abs(self.currentIndex-index) * (this.options.scrollSpeed*4) / self.$liLength;
self.scrollEl.animate({
scrollTop:self.$elDatas[index]['data-position'] || null
}, (speed <= self.options.scrollSpeed) ? self.options.scrollSpeed : speed, this.options.easing);
}
},
scrollEvent: function() {
var self = this,
docTop = self.$document.scrollTop();
if(docTop < self.currentP && self.currentIndex > 0){
// Scroll to top
self._ignoreHashChange = true;
if(self.$current.prev().attr('id'))
self.setHash(self.$current.prev().attr('id'));
self.$current
.removeClass('current')
.css( (self.webkit) ? {'-webkit-transform': 'translateY(0px) translateZ(0)'} : {marginTop: 0} )
.nextAll().addClass('hidden').end()
.prev().addClass('current').removeClass('hidden');
self.setCache();
self.options.prevSlide();
} else if(docTop < (self.currentP + self.currentHeight)){
// Animate the current pannel during the scroll
if(self.webkit)
self.$current.css({'-webkit-transform': 'translateY('+(-(docTop-self.currentP))+'px) translateZ(0)' });
else
self.$current.css({marginTop: -(docTop-self.currentP) });
// If there is a fixed element in the current panel
if(self.$fixedLength){
var dataTop = parseInt(self.$fixed.attr('data-top'), 10);
if(docTop + self.$windowHeight >= self.currentP + self.currentHeight){
self.$fixed.css({
position: 'fixed'
});
} else {
self.$fixed.css({
position: 'absolute',
marginTop: Math.abs(docTop-self.currentP)
});
}
}
// If there is a step element in the current panel
if(self.$stepLength){
$.each(self.$step, function(i,el){
if(($(el).position().top+self.currentP) <= docTop+5 && $(el).position().top + self.currentP + $(el).height() >= docTop+5){
if(!$(el).hasClass('current-step')){
self.$step.removeClass('current-step');
$(el).addClass('current-step');
return false;
}
}
});
}
if(self.parallaxBg){
self.$current.css({
'background-position-y': docTop * self.parallaxBg
});
}
if(self.$fade.length){
self.$fade.css({
'opacity': 1-(docTop/ self.$fade.attr('data-fade'))
});
}
if(self.$slowScroll.length){
self.$slowScroll.css({
'margin-top' : (docTop / self.$slowScroll.attr('data-slow-scroll'))
});
}
} else {
// Scroll bottom
self._ignoreHashChange = true;
if(self.$current.next().attr('id'))
self.setHash(self.$current.next().attr('id'));
self.$current.removeClass('current')
.addClass('hidden')
.next('li').addClass('current').next('li').removeClass('hidden');
self.setCache();
self.options.nextSlide();
}
},
scrollMobileEvent: function() {
var self = this,
docTop = self.$element.scrollTop();
if(docTop+10 < self.currentP && self.currentIndex > 0){
// Scroll to top
self._ignoreHashChange = true;
if(self.$current.prev().attr('id'))
self.setHash(self.$current.prev().attr('id'));
self.$current.removeClass('current').prev().addClass('current');
self.setCache();
self.options.prevSlide();
} else if(docTop+10 < (self.currentP + self.currentHeight)){
// If there is a step element in the current panel
if(self.$stepLength){
$.each(self.$step, function(i,el){
if(($(el).position().top+self.currentP) <= docTop && (($(el).position().top+self.currentP) + $(el).outerHeight()) >= docTop){
if(!$(el).hasClass('current-step')){
self.$step.removeClass('current-step');
$(el).addClass('current-step');
}
}
});
}
} else {
// Scroll bottom
self._ignoreHashChange = true;
if(self.$current.next().attr('id'))
self.setHash(self.$current.next().attr('id'));
self.$current.removeClass('current').next().addClass('current');
self.setCache();
self.options.nextSlide();
}
},
// Setters
setDimensions: function(){
var self = this,
levelHeight = 0,
cover = false,
height = null;
self.$windowHeight = self.$window.height();
this.$li.each(function(index) {
var $self = $(this);
cover = $self.hasClass('cover');
if(cover){
$self.css({height: self.$windowHeight, zIndex: 999-index})
.attr('data-height',self.$windowHeight)
.attr('data-position',levelHeight);
self.$elDatas[$self.index()] = {
'data-height': parseInt(self.$windowHeight,10),
'data-position': parseInt(levelHeight, 10)
};
levelHeight += self.$windowHeight;
} else{
height = ($self.outerHeight() <= self.$windowHeight) ? self.$windowHeight : $self.outerHeight();
$self.css({minHeight: height, zIndex: 999-index})
.attr('data-height',height)
.attr('data-position',levelHeight);
self.$elDatas[$self.index()] = {
'data-height': parseInt(height, 10),
'data-position': parseInt(levelHeight, 10)
};
levelHeight += height;
}
if($self.find('.fixed').length){
var top = $self.find('.fixed').css('top');
$self.find('.fixed').attr('data-top', top);
}
});
if(!this.options.mobile)
this.setBodyHeight();
},
setEvents: function() {
var self = this;
$(window).on('resize', function(){
self.setDimensions();
});
if(self.options.mobile) {
self.$element.on('scroll', function(){
self.scrollMobileEvent();
});
} else {
self.$window.on('scroll', function(){
self.scrollEvent();
});
}
if(self.options.enableKeys) {
self.$document.on('keydown', function(e){
if(e.keyCode === 38 || e.keyCode === 37) {
self.scrollToPosition('up');
e.preventDefault();
return false;
}
if(e.keyCode === 40 || e.keyCode === 39){
self.scrollToPosition('down');
e.preventDefault();
return false;
}
// Home button
if(e.keyCode === 36){
self.scrollToPosition('top');
e.preventDefault();
return false;
}
// End button
if(e.keyCode === 35){
self.scrollToPosition('bottom');
e.preventDefault();
return false;
}
});
}
if(self.options.scrollButtons){
if(self.options.scrollButtons.up){
self.options.scrollButtons.up.on('click', function(e){
e.preventDefault();
self.scrollToPosition('up');
});
}
if(self.options.scrollButtons.down){
self.options.scrollButtons.down.on('click', function(e){
e.preventDefault();
self.scrollToPosition('down');
});
}
}
if(self.options.curtainLinks){
$(self.options.curtainLinks).on('click', function(e){
e.preventDefault();
var href = $(this).attr('href');
if(!self.isHashIsOnList(href.substring(1)) && position)
return false;
var position = self.$elDatas[$(href).index()]['data-position'] || null;
if(position){
self.scrollEl.animate({
scrollTop:position
}, self.options.scrollSpeed, self.options.easing);
}
return false;
});
}
self.$window.on("hashchange", function(event){
if(self._ignoreHashChange === false){
self.isHashIsOnList(location.hash.substring(1));
}
self._ignoreHashChange = false;
});
},
setBodyHeight: function(){
var h = 0;
for (var key in this.$elDatas) {
var obj = this.$elDatas[key];
h += obj['data-height'];
}
this.options.bodyHeight = h;
$('body').height(h);
},
setLinks: function(){
var self = this;
this.$li.each(function() {
var id = $(this).attr('id') || 0;
self.options.linksArray.push(id);
});
},
setHash: function(hash){
// "HARD FIX"
el = $('[href=#'+hash+']');
el.parent().siblings('li').removeClass('active');
el.parent().addClass('active');
if(history.pushState) {
history.pushState(null, null, '#'+hash);
}
else {
location.hash = hash;
}
},
setCache: function(){
var self = this;
self.$current = self.$element.find('.current');
self.$fixed = self.$current.find('.fixed');
self.$fixedLength = self.$fixed.length;
self.$step = self.$current.find('.step');
self.$stepLength = self.$step.length;
self.currentIndex = self.$current.index();
self.currentP = self.$elDatas[self.currentIndex]['data-position'];
self.currentHeight = self.$elDatas[self.currentIndex]['data-height'];
self.parallaxBg = self.$current.attr('data-parallax-background');
self.$fade = self.$current.find('[data-fade]');
self.$slowScroll = self.$current.find('[data-slow-scroll]');
},
// Utils
isHashIsOnList: function(hash){
var self = this;
$.each(self.options.linksArray, function(i,val){
if(val === hash){
self.scrollToPosition(hash);
return false;
}
});
},
readyElement: function(el,callback){
var interval = setInterval(function(){
if(el.length){
callback(el.length);
clearInterval(interval);
}
},60);
},
imageLoaded: function(callback){
var self = this,
elems = self.$element.find('img'),
len = elems.length,
blank = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
elems.bind('load.imgloaded',function(){
if (--len <= 0 && this.src !== blank || $(this).not(':visible')){
elems.unbind('load.imgloaded');
callback.call(elems,this);
}
}).each(function(){
if (this.complete || this.complete === undefined){
var src = this.src;
this.src = blank;
this.src = src;
}
});
}
};
$.fn[pluginName] = function ( options ) {
return this.each(function () {
if (!$.data(this, 'plugin_' + pluginName)) {
$.data(this, 'plugin_' + pluginName, new Plugin( this, options ));
}
});
};
})( jQuery, window, document );
</script>
First you would have to tell us how you are trying to select text (mouse, keyboard, touchscreen, etc.)
I bet my bitcoins on keyboard (but I don't have any).
Must be one of those
self.$document.on('keydown', function(e){
...
e.preventDefault();
which don't even document which keys these numbers stand for.
It's e.preventDefault() which prevents the default browser action from being performed.
If you're in Chrome devtools, you can use
monitorEvents(window, 'key')
to make sense of these.
Of course this bit may help a bit:
keyCode: 38
keyIdentifier: "Up"
So the code could be written readably by use of keyIdentifier instead of keyCode.
I don't know how compatible that would be across browsers.
Be warned that keydown keyCode values are different from keypress values (which actually insert real characters). keydown key codes will vary between keyboard layouts and locales.
See http://unixpapa.com/js/key.html for disgust and enlightenment, but mostly disgust.

Categories

Resources