We Keep Coding

DataTables vertical page fitting on window resize

Following the Vertical Page fitting blog on DataTables https://datatables.net/blog/2015-04-10, I'm trying to setup my table the same way but using the window resize event. Here's what i'm doing,
<script>
var prevHeight = 0; //for storing the previous height of the window
$(document).ready(function() {
prevHeight = $(window).height(); //get the current height of the window on load
});
$(window).on('resize', function(e){
var currentHeight = $(window).height(); //height of the window after resize
var wrapper = $('.resize_wrapper'); //div containing the table
var resizeStartHeight = wrapper.height(); //height of the wrapper
var height = resizeStartHeight + (currentHeight - prevHeight); //new height for the wrapper
if ( height < 180 ) { //setting a minimum height
height = 180;
}
wrapper.height( height ); //set the new height for the wrapper
prevHeight = $(window).height(); //store the new height of the window
});
</script>
The table container is resizing, my table page length is changing. So far this code works but I can't seem to figure out what i'm missing because there's still a huge blank area under my table. There's nothing else under there, my table/div is the last element on the page.

how to get width of screen before every resize on page?

I have this code
$(document).ready(function(){
var oldwidth= $(window).width();
$(window).resize(function(){
var nw= $(window).width();
//compare new and old width
});
});
The problem is the old width is only set during loading of document, new width changes during every resize. I want to get the width just before resizing, so I can check if user is decreasing width or increasing width of screen.

In the resize() handler, update oldwidth with the new width as the very last line of the function.
$(document).ready(function () {
var oldwidth = $(window).width();
$(window).resize(function () {
var nw = $(window).width();
//compare new and old width
oldwidth = nw;
});
});

Resize event detection, loging on stop resize:
function resize_event_analysis()
{
var resized_to;
//On resize events
$(window).resize(function()
{
clearTimeout(resized_to);
resized_to = setTimeout(function() {
var now = new Date();
now.toString('yyyy-MM-dd, hh:mm:ss');;
var dwidth = "Device width = " + window.screen.width;
var swidth = "Window width = " + $(document).width();
console.log("Resize detected successfully - " + now);
console.log(dwidth);
console.log(swidth);
}, 100);
});
Call like i.e.:
$(document).ready(function() {
resize_event_analysis();
});

The previous solution only works the first time you load the page, but if you resize the browser it does not calculate it anymore, so my solution for the whole problem is:
on my master page I get the initial size:
$(document).ready(function () {
var oldWidth = $(window).width();
});
then on the resize event we do this:
$(window).resize(function () {
if ($(window).width() != oldWidth) {
// do whatever we want to do
// update the size of the current browser (oldWidth)
oldWidth = $(window).width();
}
});

Simple jQuery Modal Window not showing popup on page load

I am working with one of the jQuery Modal Window as shown in this tutorial.
It works fine with the basic example but when i make changes to show the Modal window on page load then it does not work, It even blocks the link Simple Modal Window from showing popup modal if clicked on.
I have example on jsFiddle
I am not sure what i am doing wrong.
I simply want simple modal window to show up on page load event.
launchWindow('#dialog'); // does not work as shown in that tutorial

Try with this: http://jsfiddle.net/HJUZm/
you have that on click of the <a> just removed that.
$(document).ready(function() {
var id = $(this).attr('href');
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set height and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn(1000);
$('#mask').fadeTo("slow",0.8);
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$(id).css('top', winH/2-$(id).height()/2);
$(id).css('left', winW/2-$(id).width()/2);
//transition effect
$(id).fadeIn(2000);
//if close button is clicked
$('.window .close').click(function (e) {
//Cancel the link behavior
e.preventDefault();
$('#mask, .window').hide();
});
//if mask is clicked
$('#mask').click(function () {
$(this).hide();
$('.window').hide();
});
$(window).resize(function () {
var box = $('#boxes .window');
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set height and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
box.css('top', winH/2 - box.height()/2);
box.css('left', winW/2 - box.width()/2);
});
});

In your code it is missing the function launchWindow(). This is the function:
function launchWindow(id) {
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set heigth and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn(1000);
$('#mask').fadeTo("slow",0.8);
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$(id).css('top', winH/2-$(id).height());
$(id).css('left', winW/2-$(id).width()/2);
//transition effect
$(id).fadeIn(2000);
}

Check out this it works on page load as u described
Fiddle
Here simply I have removed `$('a[name=modal]').click(function(e) {` });
and has set var id = $('#link').attr('href'); where link id is id of the tag

launchWindow(..) is not defined in your javascript.
instead try this:
$('a[name=modal]').click();

where do i insert setTimeout() in the above script? since var id="#dialog"; is the div that is shown when the page is loaded

$(document).ready(function() {
var id = "#dialog";
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set heigth and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn('fast');
$('#mask').fadeTo('fast');
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$(id).css('top', winH/2-$(id).height()/2);
$(id).css('left', winW/2-$(id).width()/2);
//transition effect
$(id).fadeIn('fast');
//if close button is clicked
$('.window .close').click(function (e) {
//Cancel the link behavior
e.preventDefault();
$('#mask').fadeOut();
$('.window').fadeOut();
});
//if mask is clicked
$('#mask').click(function () {
$(this).unhide();
$('.window').unhide();
});
});

why do you need a setTimeout? what are you trying to achieve? A little more info is required if you would like a useful response.
add everything you have in your $(document).ready to another function say showDialog() .
then in $(doc).ready add:
var myTimeout = setTimeout(showDialog,20000);

Here's one way:
$(document).ready( function(){
(function delayedModal(){
var id = '#dialog';
// ...snip...
var timer = setTimeout( function(){
$(id).fadeIn('fast');
},20000);
}());
// ...snip...
});

Get Jquery modal box to appear on page load

I need to get this Jquery box to appear on page load. Right now it only appears when the user clicks a link.
Here is the trigger:
<script type="text/javascript">
$(document).ready(function() {
//select all the a tag with name equal to modal
$('a[name=modal]').click(function(e) {
//Cancel the link behavior
e.preventDefault();
//Get the A tag
var id = $(this).attr('href');
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set heigth and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn(1000);
$('#mask').fadeTo("slow",0.8);
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$(id).css('top', winH/2-$(id).height()/2);
$(id).css('left', winW/2-$(id).width()/2);
//transition effect
$(id).fadeIn(2000);
});
//if close button is clicked
$('.window .close').click(function (e) {
//Cancel the link behavior
e.preventDefault();
$('#mask').hide();
$('.window').hide();
});
//if mask is clicked
$('#mask').click(function () {
$(this).hide();
$('.window').hide();
});
});
</script>
Im sure there must be some sort of solution here, any ideas?

You can fire click event on the necessary link
$(window).load(function() {
$('a#initialModalLink[name=modal]').trigger("click");
});
Where initialModalLink is id of the link that should execute modal window. Also (and it would be better) you can extract modal window opening into separate function and use it:
function openModal(id) {
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set heigth and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn(1000);
$('#mask').fadeTo("slow", 0.8);
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$(id).css('top', winH / 2 - $(id).height() / 2);
$(id).css('left', winW / 2 - $(id).width() / 2);
//transition effect
$(id).fadeIn(2000);
}
$(document).ready(function() {
$('a[name=modal]').click(function(e) {
//Cancel the link behavior
e.preventDefault();
openModal($(this).attr('href'));
});
openModal('the href of initial modal box');
});

code running with the function close:
function openModal(id) {
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set heigth and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn(1000);
$('#mask').fadeTo("slow", 0.8);
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$(id).css('top', winH / 2 - $(id).height() / 2);
$(id).css('left', winW / 2 - $(id).width() / 2);
//transition effect
$(id).fadeIn(2000);
$('.window .modalClose').click(function (e) {
e.preventDefault();
$('#mask').hide();
$('.window').hide();
});
$('#mask').click(function () {
$(this).hide();
$('.window').hide();
});
}
$(document).ready(function() {
$('a[name=modal]').click(function(e) {
//Cancel the link behavior
e.preventDefault();
openModal($(this).attr('href'));
});
openModal('#modalDialog');
});

Sure, you just need to know what href to send. You can extract the modal function like this and call it when needed:
var modal = function(id) {
//Get the screen height and width
var maskHeight = $(document).height();
var maskWidth = $(window).width();
//Set heigth and width to mask to fill up the whole screen
$('#mask').css({'width':maskWidth,'height':maskHeight});
//transition effect
$('#mask').fadeIn(1000);
$('#mask').fadeTo("slow",0.8);
//Get the window height and width
var winH = $(window).height();
var winW = $(window).width();
//Set the popup window to center
$(id).css('top', winH/2-$(id).height()/2);
$(id).css('left', winW/2-$(id).width()/2);
//transition effect
$(id).fadeIn(2000);
});
$(document).ready(function() {
//select all the a tag with name equal to modal
$('a[name=modal]').click(function(e) {
e.preventDefault();
modal($(this).attr('href')); // this might be a typo, should be id?
});
// fire the modal on load
modal('http://display.me/in/modal/');
});