While using the D3 implementation in one of my project for collapsible tree, I used the following piece of codes to add dragging and zooming feature in the tree. At first I have downloaded the D3 JS and loaded to the page callback as specified in the D3 implementation notes.
While working on a Drupal website recently, I wanted to add a pop-up in some of the selected pages in a website with a delay of 15 seconds after page load. For all users, pop-up should be displayed only once in a day.
Now a days for almost all the website have atleast one read more option. Read more options are mainly for excluding the full content of a text or a paragraph to improve its visibility for the user. By the read more option user gets the freedom to view the full content if the user wants.
This is a small article on how we can detect an Operating System (WIndows, Linux, Mac etc) using jQuery. For this first we need to download a plugin from here. Download this file (the name will be jquery.client.js) and copy and paste it in your custom module.
One of our Drupal clients wanted to make the current image of the slideshow in a page as the background of other pages. It is possible to achieve this effect using a combination of jQuery and Ajax. Read on to know how to make the current image of slideshow in a page as the background of related pages in a Drupal site.
When developing a website we might often come across situations where we have to limit the entry into each text fields to a certain type. One of the common scenarios we run into when developing Drupal websites is to limit text fields to accept only numbers as its input. If you want to know how to limit a text field to accept only numbers as input then read on to find out more.
AJAX is now widely used in web development to make the user interfaces simpler and faster. We may use AJAX to load images after page load in order to increase performance. However if you want to have a lightbox popup with the full image bound to an image loaded by AJAX then you might run into problems. You will find that even after linking the JS, CSS files and adding the rel="lightbox" attribute to the images it might not work.
Colorbox can be used to display content pop-ups. By default, the popup's height and width will be exactly the same as that of the original content. But there may be times, when you want to load the content as per the screen height. This can be done easily using jQuery.
A large number of websites on the web today have some kind of slideshow in them and they are probably using a library like jQuery to create the slide effect. When there are 10 images cycling in a slideshow, you might want to shuffle the order of the slideshow a bit. If you have a slideshow in your Drupal website and want to know how to change the order of the slideshow on every pageload then continue reading to know more.
On one of the Drupal projects we had recently worked on, the client wanted us track the last active tab. We had used the Drupal Quicktab module to create the tabs. However we noticed that the quicktab cookie used to track the last active tab is not persisting after closing and reopening the browser. If you are facing the same scenario in your Drupal site and want to know the solution then continue reading.