Develop Reference

$(this).hide() hides containers it shouldn't

I have this little piece of code that filters through a list of results and hides the divs that don't match. I am writing this for a PhoneGap iOS application. It works fine on Android, but on iOS for some reason it hides the entire search field as well after typing a few characters, not just the results.
Any idea why? I've stripped it down to almost only the HTML code and jQuery and it's still happening. I tried commenting out the $(this).hide(); part and it stops hiding the search field, so I assume somehow that's the culprit, but I can't figure out why or how to fix this. Been at it for 10 hours straight. Any ideas? Maybe I can target the results some other way?
$('#box_search').keyup(function() {
var valThis = $(this).val().toLowerCase();
if (valThis == "") {
$('#listing-results > .listing_container').show();
} else {
$('#listing-results > .listing_container').each(function() {
var text = ($(this).find('.listing_results_text_name').text() + $(this).find('.listing_results_text_name').data("alt")).toLowerCase();
if (text.indexOf(valThis) >= 0) {
$(this).show();
} else {
$(this).hide();
}
});
};
});

obviously I cant see the html but sometimes it helps to clean the code and just change the logic slightly
var box_search = function(e){
var myIndex = $(this).val();
val = (!myIndex || myIndex==='')?false:myIndex;
if(!myIndex){
$('#listing-results > .listing_container').show();
return;
}
//
$('#listing-results > .listing_container').each(function() {
var text = $(this).find('.listing_results_text_name').text() +
$(this).find('.listing_results_text_name').data("alt")
text = (!text || text==='')?false:text;
text = text.toLowerCase();
if(text.indexOf(myIndex.toLowerCase()) >= 0){
$(this).show();
return;
}
$(this).hide();
});
} //end of function
$('.box_search').keyup(box_search);

Slickgrid - dataview not updated

I am applying a filter on slick grid data, it changes the number of records in footer but does not refresh the data in table and always show all records.
Code :
$('#shade-number').keyup(function(e) {
// clear on Esc
if (e.which == 27) {
this.value = "";
}
searchList = $.trim(this.value.toLowerCase()).split(' ');
dataViewAdd.setFilter(gridFilter);
gridPo.invalidate();
this.focus();
});
function gridFilter(rec) {
var found;
for (i = 0; i < searchList.length; i += 1) {
found = false;
$.each(rec, function(obj, objValue) {
if (typeof objValue !== 'undefined' && objValue != null
&& objValue.toString().toLowerCase().indexOf(searchList[i]) != -1) {
found = true;
return false; //this breaks the $.each loop
}
});
if (!found) {
return false;
}
}
return true;
}
In table footer it says Showing all 4 rows but in table all records are displayed.

Sounds like you don't have the OnRowCountChanged and OnRowsChanged events hooked up.
You should always start with a working example, such as:
http://6pac.github.io/SlickGrid/examples/example4-model.html
and modify it to your needs. Then if something goes wrong, you can retrace your changes step by step until it works.
Also, being able to post a link to a fully working example is a lot easier to debug. I'd bet the problem is in code not mentioned above.

java script query how to filter a table on click

I have a table with five input text for filters as showing in this jsfiddle
https://jsfiddle.net/607y6qdx/2/
I want to filter the information in the table whenever there is a text inside one of these filters and when the users clicks enter.
i already simulated the enter click like this:
$(document).ready(function () {
$('#transactionIDFilter, #messageTypeFilter, #timestampFilter, #messageTextFilter, #originFilter, #destinationFilter ')
.keypress(function (e) {
var key = e.which;
if (key == 13) // the enter key code
{
alert('Oh boy');
return false;
}
});
});
but i couldn't filter the rows.
could you help me please. i am new to js

So the logic you need to follow is
Fetch the value of the input field and get the index of the input
field in which user has pressed enter.
Traverse across all the
Pick td of the index fetched from the firt step.
If the typed value exists in the fetched td then show the entire row or else hide the entired row.
Here is the code which may help:
$(
'#transactionIDFilter, #messageTypeFilter, #timestampFilter, #messageTextFilter, #originFilter, #destinationFilter')
.keypress(function (e) {
var key = e.which;
if (key == 13) // the enter key code
{
$val = $(this).val();
$el = $(this).closest("td");
var index = $("td").index($el);
$("tr").not(".fixed").each(function () {
$elinner = $(this).find("td").eq(index);
if ($elinner.html().indexOf($val) != -1) {
$(this).show();
} else {
$(this).hide();
}
});
return false;
}
});
https://jsfiddle.net/607y6qdx/7/

Utilizing jQuery Selectors to simplify HTML parser code

This code uses jQuery find() and several if statements to pick out certain text from an HTML document.
I'm trying to remove the if statements and interpret them to jQuery selectors in find(), at the very top line of code. Is this possible? If so, what would the selectors need to be?
$(document).find("a[href^='http://fakeURL.com/']").each(function()
{
var title = $(this).text();
var url = $(this).attr('href');
if(title.indexOf('Re: ') != 0)
{
if($(this).parent().attr('class') != 'quoteheader')
{
if(url.indexOf('topic') == 36)
{
if($(this).parent().attr('class') == 'middletext')
{
console.log(title);
}
}
}
}
});

For the last thing I left, you want to check if the topic is at index 36 ? not sure its possible via the selector, beside that everything went up to the selector (code not tested, should work tho)
$(document).find(".middletext:not(.quoteheader) > a[href^='http://fakeURL.com/']").each(function()
{
if(url.indexOf('topic') != 36)
return;
var title = $(this).text();
if(title.indexOf('Re: ') != 0)
return;
console.log(title);
});

Cycle Focus to First Form Element from Last Element & Vice Versa

I have created a form with malsup's Form Plugin wherein it submits on change of the inputs. I have set up my jQuery script to index drop down menus and visible inputs, and uses that index to determine whether keydown of tab should move focus to the next element or the first element, and likewise with shift+tab keydown. However, instead of moving focus to the first element from the last element on tab keydown like I would like it to, it moves focus to the second element. How can I change it to cycle focus to the actual first and last elements? Here is a live link to my form: http://www.presspound.org/calculator/ajax/sample.php. Thanks to anyone that tries to help. Here is my script:
$(document).ready(function() {
var options = {
target: '#c_main',
success: setFocus
};
$('#calculator').live('submit', function() {
$(this).ajaxSubmit(options);
return false;
});
$(this).focusin(function(event) {
var shiftDown = false;
$('input, select').each(function (i) {
$(this).data('initial', $(this).val());
});
$('input, select').keyup(function(event) {
if (event.keyCode==16) {
shiftDown = false;
$('#shiftCatch').val(shiftDown);
}
});
$('input, select').keydown(function(event) {
if (event.keyCode==16) {
shiftDown = true;
$('#shiftCatch').val(shiftDown);
}
if (event.keyCode==13) {
$('#captured').val(event.target.id);
} else if (event.keyCode==9 && shiftDown==false) {
return $(event.target).each(function() {
var fields = $(this).parents('form:eq(0),calculator').find('select, input:visible');
var index = fields.index(this);
var nextEl = fields.eq(index+1).attr('id');
var firstEl = fields.eq(0).attr('id');
var focusEl = '#'+firstEl;
if (index>-1 && (index+1)<fields.length) {
$('#captured').val(nextEl);
} else if(index+1>=fields.length) {
if ($(this).val() != $(this).data('initial')) {
$('#captured').val(firstEl);
} else {
event.preventDefault();
$(focusEl).focus();
}
}
return false;
});
} else if (event.keyCode==9 && shiftDown==true) {
return $(event.target).each(function() {
var fields = $(this).parents('form:eq(0),calculator').find('select, input:visible');
var index = fields.index(this);
var prevEl = fields.eq(index-1).attr('id');
var lastEl = fields.eq(fields.length-1).attr('id');
var focusEl = '#'+lastEl;
if (index<fields.length && (index-1)>-1) {
$('#captured').val(prevEl);
} else if (index==0) {
if ($(this).val() != $(this).data('initial')) {
$('#captured').val(lastEl);
} else {
event.preventDefault();
$(focusEl).select();
}
}
return false;
});
}
});
});
});
function setFocus() {
with (document.calculator)
var recap = document.getElementById(recaptured.value);
if (recap!=null) {
setTimeout(function() {
if (recap.getAttribute('type')=='text') {
recap.select();
} else {
recap.focus();
}
}, 100 );
}
}
Edit #1: I made a few minor changes to the code, which has brought me a little closer to my intended functionality of the script. However, I only made one change to the code pertaining to the focus: I tried to to disable the tab keydown when pressed on the last element (and also the shift+tab keydown on the first element) in an attempt to force the focus on the element I want without skipping over it like it has been doing. This is the code I added:
$(this).one('keydown', function (event) {
return !(event.keyCode==9 && shiftDown==true);
});
This kind of works. After the page loads, If the user presses tab on the last element without making a change to its value, the focus will be set to the second element. However, the second time the user presses tab on the last element without making a change to its value, and every subsequent time thereafter, the focus will be set to the first element, just as I would like it to.
Edit #2: I replaced the code in Edit #1, with code utilizing event.preventDefault(), which works better. While if a user does a shift+tab keydown when in the first element, the focus moves to the last element as it should. However, if the user continues to hold down the shift key and presses tab again, focus will be set back to the first element. And if the user continues to hold the shift key down still yet and hits tab, the focus will move back to the last element. The focus will shift back and forth between the first and last element until the user lifts the shift key. This problem does not occur when only pressing tab. Here is the new code snippet:
event.preventDefault();
$(focusEl).focus();

You have a lot of code I didn't get full overview over, so I don't know if I missed some functionality you wanted integrated, but for the tabbing/shift-tabbing through form elements, this should do the work:
var elements = $("#container :input:visible");
var n = elements.length;
elements
.keydown(function(event){
if (event.keyCode == 9) { //if tab
var currentIndex = elements.index(this);
var newIndex = event.shiftKey ? (currentIndex - 1) % n : (currentIndex + 1) % n;
var el = elements.eq(newIndex);
if (el.attr("type") == "text")
elements.eq(newIndex).select();
else
elements.eq(newIndex).focus();
event.preventDefault();
}
});
elements will be the jQuery object containing all the input fields, in my example it's all the input fields inside the div #container
Here's a demo: http://jsfiddle.net/rA3L9/

Here is the solution, which I couldn't have reached it without Simen's help. Thanks again, Simen.
$(document).ready(function() {
var options = {
target: '#c_main',
success: setFocus
};
$('#calculator').live('submit', function() {
$(this).ajaxSubmit(options);
return false;
});
$(this).focusin(function(event) {
$('#calculator :input:visible').each(function (i) {
$(this).data('initial', $(this).val());
});
return $(event.target).each(function() {
$('#c_main :input:visible').live(($.browser.opera ? 'keypress' : 'keydown'), function(event){
var elements = $("#calculator :input:visible");
var n = elements.length;
var currentIndex = elements.index(this);
if (event.keyCode == 13) { //if enter
var focusElement = elements.eq(currentIndex).attr('id');
$('#captured').val(focusElement);
} else if (event.keyCode == 9) { //if tab
var newIndex = event.shiftKey ? (currentIndex - 1) % n : (currentIndex + 1) % n;
var el = elements.eq(newIndex);
var focusElement = el.attr('id');
if ($(this).val() != $(this).data('initial')) {
$('#captured').val(focusElement);
} else if ((currentIndex==0 && event.shiftKey) || (currentIndex==n-1 && !event.shiftKey)) {
event.preventDefault();
if (el.attr('type')=='text') {
$.browser.msie ? "" : $(window).scrollTop(5000);
el.select().delay(800);
} else {
$.browser.msie ? "" : $(window).scrollTop(-5000);
el.focus().delay(800);
}
} else if (el.is('select')) {
event.preventDefault();
if (el.attr('type')=='text') {
el.select();
} else {
el.focus();
}
}
}
});
});
});
});
function setFocus() {
with (document.calculator)
var recap = document.getElementById(recaptured.value);
if (recap!=null) {
setTimeout(function() {
if (recap.getAttribute('type')=='text') {
recap.select();
} else {
recap.focus();
}
}, 1 );
}
}
I put my files available to download in my live link: http://www.presspound.org/calculator/ajax/sample.php