Javascript's Callback Function - javascript

I am using Lazy Load Jquery plugin here on my test page: http://bloghutsbeta.blogspot.com/2012/03/testing-2_04.html
And this is the minified script for lazyload:
Code:
<script src="http://files.cryoffalcon.com/javascript/jquery.lazyload.min.js" type="text/javascript" charset="utf-8"></script>
this one is to trigger lazy load:
Code:
<script type="text/javascript" charset="utf-8">
$(function() {
$("img").lazyload({
effect : "fadeIn"
});
});
</script>
In the above script I have added fadeIn effect to it, I don't know if I have done it right according to script writting I am not good in scripts ^^ So, I would like have an advise if it's well written or there is some comma mistake.
But that is not my important question, all of the above lazy load plugin is used with QuickSand Jquery plugin that I am using for sorting.
QuickSand Jquery Plugin requires callback function if it's tooltip or Lazy Load, So can someone kindly tell me how to make lazy load work together with quicksand jquery.
Here is the quicksand's script:
Code:
<script type="text/javascript">
(function(cash) {
$.fn.sorted = function(customOptions) {
var options = {
reversed: false,
by: function(a) {
return a.text();
}
};
$.extend(options, customOptions);
$data = $(this);
arr = $data.get();
arr.sort(function(a, b) {
var valA = options.by($(a));
var valB = options.by($(b));
if (options.reversed) {
return (valA < valB) ? 1 : (valA > valB) ? -1 : 0;
} else {
return (valA < valB) ? -1 : (valA > valB) ? 1 : 0;
}
});
return $(arr);
};
})(jQuery);
$(function() {
var read_button = function(class_names) {
var r = {
selected: false,
type: 0
};
for (var i=0; i < class_names.length; i++) {
if (class_names[i].indexOf('selected-') == 0) {
r.selected = true;
}
if (class_names[i].indexOf('segment-') == 0) {
r.segment = class_names[i].split('-')[1];
}
};
return r;
};
var determine_sort = function($buttons) {
var $selected = $buttons.parent().filter('[class*="selected-"]');
return $selected.find('a').attr('data-value');
};
var determine_kind = function($buttons) {
var $selected = $buttons.parent().filter('[class*="selected-"]');
return $selected.find('a').attr('data-value');
};
var $preferences = {
duration: 800,
easing: 'easeInOutQuad',
adjustHeight: 'dynamic'
};
var $list = $('#data');
var $data = $list.clone();
var $controls = $('ul#gamecategories ul');
$controls.each(function(i) {
var $control = $(this);
var $buttons = $control.find('a');
$buttons.bind('click', function(e) {
var $button = $(this);
var $button_container = $button.parent();
var button_properties = read_button($button_container.attr('class').split(' '));
var selected = button_properties.selected;
var button_segment = button_properties.segment;
if (!selected) {
$buttons.parent().removeClass('selected-0').removeClass('selected-1').removeClass('selected-2');
$button_container.addClass('selected-' + button_segment);
var sorting_type = determine_sort($controls.eq(1).find('a'));
var sorting_kind = determine_kind($controls.eq(0).find('a'));
if (sorting_kind == 'all') {
var $filtered_data = $data.find('li');
} else {
var $filtered_data = $data.find('li.' + sorting_kind);
}
if (sorting_type == 'size') {
var $sorted_data = $filtered_data.sorted({
by: function(v) {
return parseFloat($(v).find('span').text());
}
});
} else {
var $sorted_data = $filtered_data.sorted({
by: function(v) {
return $(v).find('strong').text().toLowerCase();
}
});
}
$list.quicksand($sorted_data, $preferences, function () { $(this).tooltip (); } );
}
e.preventDefault();
});
});
var high_performance = true;
var $performance_container = $('#performance-toggle');
var $original_html = $performance_container.html();
$performance_container.find('a').live('click', function(e) {
if (high_performance) {
$preferences.useScaling = false;
$performance_container.html('CSS3 scaling turned off. Try the demo again. <a href="#toggle">Reverse</a>.');
high_performance = false;
} else {
$preferences.useScaling = true;
$performance_container.html($original_html);
high_performance = true;
}
e.preventDefault();
});
});
</script>

you can use this:
$list.quicksand($sorted_data, $preferences, function(){
$(this).tooltip ();
$("img").lazyload({
effect : "fadeIn"
});
});

Related

$.fn.<new_function> 'is not a function' jQuery

EDIT: code link with better formatting:
EDIT: code updated with improvements from JSHint
http://pastebin.com/hkDQfZy1
I am trying to use $.fn to create a new function on jQuery objects by using it like:
$.fn.animateAuto = function(x,y) { }
And calling it by:
var card = $(id);
.....
var expanderButton = card.find(".dock-bottom");
.....
expanderButton.animateAuto('height', 500);
and I get:
Uncaught TypeError: expanderButton.animateAuto is not a function
What am I doing incorrectly? The $.cssHooks extension works just fine along with $.fx.
Here is the code:
var CSS_VIS = 'visibility'
var CSS_VIS_VIS = 'visible';
var CSS_VIS_HID = 'hidden';
var CSS_TEXTBOX_CONTAINER = ".text-box-container";
$.cssHooks['rotate'] = {
get: function (elem, computed, extra) {
var property = getTransformProperty(elem);
if (property) {
return elem.style[property].replace(/.*rotate\((.*)deg\).*/, '$1');
} else {
return '';
}
},
set: function (elem, value) {
var property = getTransformProperty(elem);
if (property) {
value = parseInt(value);
$(elem).data('rotatation', value);
if (value == 0) {
elem.style[property] = '';
} else {
elem.style[property] = 'rotate(' + value % 360 + 'deg)';
}
} else {
return '';
}
}
};
$.fn.animateAuto = function (prop, speed) {
return this.each(function (i, el) {
el = jQuery(el);
var element = el.clone().css({ 'height': 'auto' }).appendTo("body");
var height = element.css("height");
var width = element.css("width");
element.remove();
if (prop === "height") {
el.animate({ 'height': height }, speed);
} else if (prop = "width") {
el.animate({ 'width': width }, speed);
} else if (prop = "both") {
el.animate({ 'height': height, 'width:': width }, speed);
}
});
}
$.fx.step['rotate'] = function (fx) {
$.cssHooks['rotate'].set(fx.elem, fx.now);
};
function getTransformProperty(element) {
var properties = [
'transform',
'WebkitTransform',
'MozTransform',
'msTransform',
'OTransform'];
var p;
while (p = properties.shift()) {
if (element.style[p] !== undefined) {
return p;
}
}
return false;
}
function isExpanded(card) {
return card.find(CSS_TEXTBOX_CONTAINER).css(CSS_VIS) == CSS_VIS_VIS;
}
function expandCard(id) {
var card = $(id);
var isCardExpanded = isExpanded(card);
var expanderButton = card.find(".dock-bottom");
card.animate({
height: isCardExpanded ? '80px' : '270px'
}, 500);
var startValue = isCardExpanded ? 1 : 0;
var endValue = isCardExpanded ? 0 : 1;
var visibilityValue = isCardExpanded ? CSS_VIS_HID : CSS_VIS_VIS;
var textBoxes = card.find(CSS_TEXTBOX_CONTAINER);
textBoxes.fadeTo(0, startValue);
textBoxes.css(CSS_VIS, visibilityValue).fadeTo(500, endValue);
var topValue = isCardExpanded ? 'auto' : '200px';
if (isCardExpanded) {
expanderButton.animateAuto('height', 500);
} else {
expanderButton.animate({
top: '200px'
}, 500);
}
expanderButton.find("span").text(isCardExpanded ? "More Info" : "Less Info");
var buttonthing = expanderButton.find("button");
expanderButton.find("button").animate({ rotate: isCardExpanded ? 0 : -180 });
};
The issue is that jQuery was loaded multiple times. I am using ASP.NET MVC5 and was loading jQuery in the PartialView (re-usable UI control) and the main page which was causing my extension to be overriden.
I would post code but it would be too verbose and has nothing to do with jQuery or JavaScript. To solve though, all I did was remove the jQuery script import from the PartialView since jQuery is imported on every page by the master page.
Thanks everyone for helping out though, you all proved to me that this was not a simple problem that I was overthinking and that more research was necessary.

Jquery quicksearch issue with Sharepoint 2013

I'm using a jquery plugin called quicksearch within Sharepoint 2010 and it works perfectly. Unfortunately were being forced to migrate onto sharepoint 2013 and it's stopped working. An error is shown saying that the function is undefined. I believe I've narrowed this down to the quicksearch function itself.
Here is the preliminary code:
_spBodyOnLoadFunctionNames.push("Load");
$('[name=search]').on('keyup', function(){
Load();
});
function Load() {
var searchArea = "#cbqwpctl00_ctl22_g_ca6bb172_1ab4_430d_ae38_a32cfa03b56b ul li";
var qs = $('input#id_search_list').val();
qs.quicksearch(searchArea);
$('.filter input').on('change', function(){
checkAndHide()
//$(searchArea).unhighlight();
});
function checkAndHide(){
var inputs = $('.filter input');
var i =0;
for (var i = 0; i < inputs.length; i++){
if (!inputs[i].checked){
$('.' + inputs[i].name).addClass('filter-hide');
} else {
$('.' + inputs[i].name).removeClass('filter-hide');
};
};
};
}
Here is an example of the quicksearch library I'm using:
(function($, window, document, undefined) {
$.fn.quicksearch = function (target, opt) {
var timeout, cache, rowcache, jq_results, val = '', e = this, options = $.extend({
delay: 300,
selector: null,
stripeRows: null,
loader: null,
noResults: 'div#noresults',
bind: 'keyup keydown',
onBefore: function () {
var ar = $('input#id_search_list').val()
if (ar.length > 2) {
var i=0;
var ar2 = $('input#id_search_list').val().split(" ");
for (i = 0; i < ar2.length; i++) {
$(searchArea + ':visible');
}
return true;
}
return false;
checkAndHide()
},
onAfter: function () {
return;
},
show: function () {
this.style.display = "block";
},
hide: function () {
this.style.display = "none";
},
prepareQuery: function (val) {
return val.toLowerCase().split(' ');
},
testQuery: function (query, txt, _row) {
for (var i = 0; i < query.length; i += 1) {
if (txt.indexOf(query[i]) === -1) {
return false;
}
}
return true;
}
}, opt);
this.go = function () {
var i = 0,
noresults = true,
query = options.prepareQuery(val),
val_empty = (val.replace(' ', '').length === 0);
for (var i = 0, len = rowcache.length; i < len; i++) {
if (val_empty) {
options.hide.apply(rowcache[i]);
noresults = false;
} else if (options.testQuery(query, cache[i], rowcache[i])){
options.show.apply(rowcache[i]);
noresults = false;
} else {
options.hide.apply(rowcache[i]);
}
}
if (noresults) {
this.results(false);
} else {
this.results(true);
this.stripe();
}
this.loader(false);
options.onAfter();
return this;
};
this.stripe = function () {
if (typeof options.stripeRows === "object" && options.stripeRows !== null)
{
var joined = options.stripeRows.join(' ');
var stripeRows_length = options.stripeRows.length;
jq_results.not(':hidden').each(function (i) {
$(this).removeClass(joined).addClass(options.stripeRows[i % stripeRows_length]);
});
}
return this;
};
this.strip_html = function (input) {
var output = input.replace(new RegExp('<[^<]+\>', 'g'), "");
output = $.trim(output.toLowerCase());
return output;
};
this.results = function (bool) {
if (typeof options.noResults === "string" && options.noResults !== "") {
if (bool) {
$(options.noResults).hide();
} else {
$(options.noResults).show();
}
}
return this;
};
this.loader = function (bool) {
if (typeof options.loader === "string" && options.loader !== "") {
(bool) ? $(options.loader).show() : $(options.loader).hide();
}
return this;
};
this.cache = function () {
jq_results = $(target);
if (typeof options.noResults === "string" && options.noResults !== "") {
jq_results = jq_results.not(options.noResults);
}
var t = (typeof options.selector === "string") ? jq_results.find(options.selector) : $(target).not(options.noResults);
cache = t.map(function () {
return e.strip_html(this.innerHTML);
});
rowcache = jq_results.map(function () {
return this;
});
return this.go();
};
this.trigger = function () {
this.loader(true);
if (options.onBefore()) {
window.clearTimeout(timeout);
timeout = window.setTimeout(function () {
e.go();
}, options.delay);
}
return this;
};
this.cache();
this.results(true);
this.stripe();
this.loader(false);
return this.each(function () {
$(this).bind(options.bind, function () {
val = $(this).val();
e.trigger();
});
});
};
}(jQuery, this, document));
`
This is where the error comes up:
var qs = $('input#id_search_list').val();
qs.quicksearch(searchArea);
Any help would be appreciated
Turns out was a small issue in the code and major css as sharepoint plays differently in 2013

Implementing Column resize using jQuery

I am trying to implement column resizing using jQuery like below(Please see http://jsbin.com/uduNUbo/1/edit)
Here is my JS code
function resizeEvents(selector) {
function XY(e, ele) {
var parentOffset = ele.parent().offset();
return e.pageX - parentOffset.left;
}
var checkPos;
$(selector).on('mousedown', function () {
$(this).attr('init', true);
return false;
});
$(selector).on('mouseup', function () {
$(this).attr('init', false);
});
$(selector).closest('div').on('mousemove', function (e) {
var inits = $(this).find('.resize').filter(function(){
return $(this).attr('init') == true;
});
if (inits.length > 0) {
var pos = XY(e, inits.first());
if (!checkPos) {
checkPos = pos;
return false;
} else {
var moved = checkPos - pos, a = moved > 0 ? 1 : -1 ;
th.prevAll().each(function () {
if (!$(this).hasClass('.resize')) {
$(this).width($(this).width() + a);
}
});
th.nextAll().each(function () {
if (!$(this).hasClass('.resize')) {
$(this).width($(this).width() - a);
}
});
}
}
});
}
resizeEvents('.resize');
But this is not working, My Question is Is mousemove is written properly, to define properly on correct element or not.
I fixed the code for you:
function resizeEvents(selector) {
var selected;
$(selector).on('mousedown', function () {
selected = $(this);
return false;
});
$(document).mouseup(function () {
selected = null;
}).mousemove(function(e) {
var target = $(e.target);
var table = target.parents('.table');
if (table.length && selected) {
var x = e.pageX - table.offset().left;
var splitter_x = selected.offset().left;
var prev = selected.prev();
var next = selected.next();
prev.width(prev.width() + (x - splitter_x));
next.width(next.width() - (x - splitter_x));
}
});
}
http://jsbin.com/uduNUbo/5/edit

Up/Down/Left/Right keyboard navigation with jQuery?

I have a list of div's all with a set and equal height/width that are float:left so they sit next to each other and fold under if that parent is smaller than the combined with of the items.
Pretty standard.
This is to create a list of the twitter bootstrap icons, it gives something like this:
I have added next/previous keyboard navigation using the code below, however you will notice that the up/down arrow keys are mapped to call the left/right functions. What I have no idea how to do is to actually do the up/down navigation?
JsFiddle
(function ($) {
$.widget("ui.iconSelect", {
// default options
options: {
},
$select: null,
$wrapper: null,
$list: null,
$filter: null,
$active: null,
icons: {},
keys: {
left: 37,
up: 38,
right: 39,
down: 40
},
//initialization function
_create: function () {
var that = this;
that.$select = that.element;
that.$wrapper = $('<div class="select-icon" tabindex="0"></div>');
that.$filter = $('<input class="span12" tabindex="-1" placeholder="Filter by class name..."/>').appendTo(that.$wrapper);
that.$list = $('<div class="select-icon-list"></div>').appendTo(that.$wrapper);
//build the list of icons
that.element.find('option').each(function () {
var $option = $(this);
var icon = $option.val();
that.icons[icon] = $('<a data-class="' + icon + '"><i class="icon ' + icon + '"></i></a>');
if ($option.is(':selected')) {
that.icons[icon].addClass('selected active');
}
that.$list.append(that.icons[icon]);
});
that.$wrapper.insertBefore(that.$select);
that.$select.addClass('hide');
that._setupArrowKeysHandler();
that._setupClickHandler();
that._setupFilter();
that.focus('selected');
},
focus: function (type) {
var that = this;
if (that.$active === null || that.$active.length == 0) {
if (type == 'first') {
that.$active = that.$list.find('a:visible:first');
} else if (type == 'last') {
that.$active = that.$list.find('a:visible:last');
} else if (type == 'selected') {
that.$active = that.$list.find('a.selected:visible:first');
that.focus('first');
}
}
that.$active.addClass('active');
var toScroll = ((that.$list.scrollTop() + that.$active.position().top)-that.$list.height()/2)+that.$active.height()/2;
//that.$list.scrollTop((that.$list.scrollTop() + top)-that.$list.height()/2);
that.$list.stop(true).animate({
scrollTop: toScroll,
queue: false,
easing: 'linear'
}, 200);
if (type === 'selected') {
return false;
}
that.$select.val(that.$active.data('class'));
that.$select.trigger('change');
},
_setupArrowKeysHandler: function () {
var that = this;
that.$wrapper.on('keydown', function (e) {
switch (e.which) {
case that.keys.left:
that.moveLeft();
break;
case that.keys.up:
that.moveUp();
break;
case that.keys.right:
that.moveRight();
break;
case that.keys.down:
that.moveDown();
break;
case 16:
return true;
case 9:
return true;
break;
default:
that.$filter.focus();
return true;
}
return false;
});
},
_setupFilter: function(){
var that = this;
that.$filter.on('keydown keyup keypress paste cut change', function(e){
that.filter(that.$filter.val());
});
},
_setupClickHandler: function () {
var that = this;
that.$list.on('click', 'a', function () {
that.$wrapper.focus();
that.$active.removeClass('active');
that.$active = $(this);
that.focus('first');
});
},
moveUp: function () {
var that = this;
return that.moveLeft();
},
moveDown: function () {
var that = this;
return that.moveRight();
},
moveLeft: function () {
var that = this;
that.$active.removeClass('active');
that.$active = that.$active.prevAll(':visible:first');
that.focus('last');
return false;
},
moveRight: function () {
var that = this;
that.$active.removeClass('active');
that.$active = that.$active.nextAll(':visible:first');
that.focus('first');
return false;
},
filter: function(word){
var that = this;
var regexp = new RegExp(word.toLowerCase());
var found = false;
$.each(that.icons, function(i, $v){
found = regexp.test(i);
if(found && !$v.is(':visible')){
$v.show();
} else if(!found && $v.is(':visible')){
$v.hide();
}
});
}
});
})(jQuery);
Perhaps something like this: http://jsfiddle.net/QFzCY/
var blocksPerRow = 4;
$("body").on("keydown", function(e){
var thisIndex = $(".selected").index();
var newIndex = null;
if(e.keyCode === 38) {
// up
newIndex = thisIndex - blocksPerRow;
}
else if(e.keyCode === 40) {
// down
newIndex = thisIndex + blocksPerRow;
}
if(newIndex !== null) {
$(".test").eq(newIndex).addClass("selected").siblings().removeClass("selected");
}
});
Basically, you set how many items there are in a row and then find the current index and subtract or add that amount to select the next element via the new index.
If you need to know how many blocks per row there are, you could do this:
var offset = null;
var blocksPerRow = 0;
$(".test").each(function(){
if(offset === null) {
offset = $(this).offset().top;
}
else if($(this).offset().top !== offset) {
return false;
}
blocksPerRow++;
});
To deal with your 'edge' cases, you could do:
if(newIndex >= $(".test").length) {
newIndex = $(".test").length - newIndex;
}
moveUp: function () {
var that = this;
var index = $(this).index();
var containerWidth = parseInt( $('.select-icon-list').innerWidth(), 10);
var iconWidth = parseInt( $('.select-icon-list > a').width(), 10);
var noOfCols = Math.floor( containerWidth / iconWidth );
var newIndex = ( (index - noOfCols) < 0 ) ? index : (index - noOfCols);
var elem = $('.select-icon-list > a')[index];
},
Cache what ever remains static.

jquery conflict with js script

welcome all ,
i have a problem with my images slider , it runs successfuly until poll script excuted then it stops , tried to combine both scripts didn't work also tried to use noConflict but in stops both of them .
this is the slider
(function ($) {
$.fn.s3Slider = function (vars) {
var element = this;
var timeOut = (vars.timeOut != undefined) ? vars.timeOut : 4000;
var current = null;
var timeOutFn = null;
var faderStat = true;
var mOver = false;
var items = $("#sliderContent .sliderImage");
var itemsSpan = $("#sliderContent .sliderImage span");
items.each(function (i) {
$(items[i]).mouseover(function () {
mOver = true
});
$(items[i]).mouseout(function () {
mOver = false;
fadeElement(true)
})
});
var fadeElement = function (isMouseOut) {
var thisTimeOut = (isMouseOut) ? (timeOut / 2) : timeOut;
thisTimeOut = (faderStat) ? 10 : thisTimeOut;
if (items.length > 0) {
timeOutFn = setTimeout(makeSlider, thisTimeOut)
} else {
console.log("Poof..")
}
};
var makeSlider = function () {
current = (current != null) ? current : items[(items.length - 1)];
var currNo = jQuery.inArray(current, items) + 1;
currNo = (currNo == items.length) ? 0 : (currNo - 1);
var newMargin = $(element).width() * currNo;
if (faderStat == true) {
if (!mOver) {
$(items[currNo]).fadeIn((timeOut / 6), function () {
if ($(itemsSpan[currNo]).css("bottom") == 0) {
$(itemsSpan[currNo]).slideUp((timeOut / 6), function () {
faderStat = false;
current = items[currNo];
if (!mOver) {
fadeElement(false)
}
})
} else {
$(itemsSpan[currNo]).slideDown((timeOut / 6), function () {
faderStat = false;
current = items[currNo];
if (!mOver) {
fadeElement(false)
}
})
}
})
}
} else {
if (!mOver) {
if ($(itemsSpan[currNo]).css("bottom") == 0) {
$(itemsSpan[currNo]).slideDown((timeOut / 6), function () {
$(items[currNo]).fadeOut((timeOut / 6), function () {
faderStat = true;
current = items[(currNo + 1)];
if (!mOver) {
fadeElement(false)
}
})
})
} else {
$(itemsSpan[currNo]).slideUp((timeOut / 6), function () {
$(items[currNo]).fadeOut((timeOut / 6), function () {
faderStat = true;
current = items[(currNo + 1)];
if (!mOver) {
fadeElement(false)
}
})
})
}
}
}
};
makeSlider()
}
})(jQuery);
and this is the poll script
window.onload = function() {
$(".sidePollCon").load("ar_poll.html", function(r, s, xhr) {
if (s == "error") {
$(".sidePollCon").load("poll.html");
} else {
$(".vote_booroo").html("صوت الان");
$(".viewresults").html("شاهد النتيجة");
$("fieldset p").html("");
$(".results_booroo p").html("");
$(".result_booroo").attr("src", "../images/poll_color.jpg");
}
});
};
One potential problem could be the window.onload assignment. It is very prone to conflict.
Every time you do window.onload = the previous assignemnt will be overridden. See demo here:
The output shows that the first window.onload assignment never gets called, while the jQuery alternative does get called.
jQuery.noConflict does little in this regard. All it does is to prevent override the $ symbol so that another lib can use it.
So if you are also using the window.onload event to invoke the slider, then you have conflict. You can easily solve this problem by using the jquery format:
$(window).load(function() {
...
});
However usually you would tie the event to $(document).load(function(){...}); or in short form: $(function(){...}).
So for your poll that would be:
$(function(){
$(".sidePollCon").load("ar_poll.html", function(r, s, xhr) {
if (s == "error") {
$(".sidePollCon").load("poll.html");
} else {
$(".vote_booroo").html("صوت الان");
$(".viewresults").html("شاهد النتيجة");
$("fieldset p").html("");
$(".results_booroo p").html("");
$(".result_booroo").attr("src", "../images/poll_color.jpg");
}
});
});
Hope that helps.
resolving conflicts in jquery (possibly with another JS library .. like script.aculo.us) can be resolved using noconflict()
http://api.jquery.com/jQuery.noConflict/
$.noConflict();
but make sure that u have no error in your javascript code itself. use firebug and
console.log('') to test your script.

Categories