Tag Archives: Ajax

Setting Checkbox State with jQuery Mobile

Ajax, Javascript, JQuery, jQuery Mobile, Pebblet
May19

I used jQuery Mobile to create the UI for the Mobile Theme Generator. One of the processes that had to be frequently coded was setting the state of the jQuery Mobile checkbox. Because of the many classes associated with displaying a mobile checkbox, the code was more involved that I first anticipated.

To set checkbox state to ‘on’:

?View Code JAVASCRIPT
var c = $('#mycheckbox');
$(c).attr({'checked': true, 'data-icon': 'checkbox-on'}).siblings('label').removeClass('ui-checkbox-off').addClass('ui-checkbox-on');
c = $(c).siblings('label').children('span').children('span')[1];
$(c).removeClass('ui-icon-checkbox-off').addClass('ui-icon-checkbox-on');

I first set the “checked” attribute to true and also set the “data-icon” attribute to ‘checkbox-on’.
I changed the class for the checkbox label from ‘ui-checkbox-off’ to ‘ui-checkbox-on’.
I then get the sibling label for the checkbox so that I can get the second ‘grand-child’ of the label. I change the class of the span from ‘ui-icon-checkbox-off’ to ‘ui-icon-checkbox-on’.

?View Code HTML
<div class="ui-checkbox">
    <label for="mycheckbox" data-corners="true" data-shadow="false" data-iconshadow="true" data-wrapperels="span" data-icon="checkbox-off" data-theme="a" data-mini="true" class="ui-btn ui-btn-corner-all ui-mini ui-btn-icon-left ui-checkbox-off ui-btn-up-a">
        <span class="ui-btn-inner ui-btn-corner-all">
            <span class="ui-btn-text">Menu Items Mini:</span>
            <span class="ui-icon ui-icon-shadow ui-icon-checkbox-off">&nbsp;</span>
        </span>
    </label>
    <input type="checkbox" name="mycheckbox" id="mycheckbox" data-mini="true">
</div>

That’s it. Of course, to turn it back off, I just to change to classes back (and removed the ‘checked’ attribute).

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JQuery Plugin: Mobile Page Switcher

Ajax, Javascript, JQuery, Mobile, plugins
May18

After I created the mobile sub-domain for GrasshopperPebbles, I needed a solution that would allow a user to switch to the mobile view at any time. I prefer giving the user the option to switch to a mobile view rather than a device-sniffing approach. So I created simple jQuery Plugin (gpMobilePageSwitcher) that displays an icon and a link to the mobile view. But the plugin doesn’t just take the user to the home page of the mobile sub-domain, it takes the user to the mobile view of the same page they are viewing.

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jQuery Plugin: gpImageRotate – Create Portfolios, Carousels, Galleries, and more

Ajax, JQuery, plugins
Oct14

A few years ago, I created the jQuery plugin imBannerRotater. I have tweaked this plugin for various projects over the years, but I recently made so many changes to the plugin that I decided to create a new plugin: gpImageRotate. The code in the new plugin is more optimized than the original. And, not only did I enhance the existing functionality, I added 4-5 additional image rotation options. Lastly, one of the major reasons that I decided to create a new plugin is that I am working on a Drupal module based upon the plugin and so I changed the code so that the Drupal module could easily interact with it – so the naming convention for many of the styles is more verbose than the original imBannerRotater plugin.

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jQuery: Dynamic Form Creation/Submission – IE8 Bug

Ajax, JQuery
Jun27

I noticed a problem with IE8 today. I dynamically created a form and submitted it with jQuery. The form did not submit in IE8, but worked in all the other browsers that were tested (Firefox, Chrome, Safari). The code is quite simple:

?View Code JAVASCRIPT
jQuery('#btn_cancel_template').click(function() {
	var id = jQuery('#product_id').val();
	jQuery('#content').append(
		jQuery('<form></form').attr({'name': 'frmReturnToProductPages', 'id': 'frmReturnToProductPages', 'action': '/provisioning/product-pages', 'method': 'post'}).append (
			jQuery('<input></input>').attr({'type': 'hidden', 'id': 'product-pages-product-id', 'name': 'product-pages-product-id'}).val(id)
	));
});

Again, this worked fine in other browsers. Upon further inspection, I found that the IE8 seemed to strip the quotes from around the form attributes:

?View Code HTML
<form name=frmReturnToProductPages id=frmReturnToProductPages action=/provisioning/product-pages />

To fix the problem, I decided to add the form attributes after appending the form to the page.

?View Code JAVASCRIPT
jQuery('#btn_cancel_template').click(function() {
	var frm = jQuery('<form></form>').appendTo(jQuery('#content'));
	jQuery(frm).attr({'name': 'frmReturnToProductPages', 'id': 'frmReturnToProductPages', 'action': '/provisioning/product-pages', 'method': 'post'}).append (
		jQuery('<input></input>').attr({'type': 'hidden', 'id': 'product-pages-product-id', 'name': 'product-pages-product-id'}).val(id)
	).submit();
});

I tested this with the IE8 developer tools and the form submitted successfully. Enjoy.

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gpDojoGallery: A Dojo Photo Gallery Widget

Ajax, Dojo, dojo-widgets
Jul27

I added a new photo gallery to galleries.digitalvilliage.com. I created the Photo Gallery widget using Dojo Toolkit about a year ago for a project that I have been working on. I recently updated to give it more options than I needed for my project.

The gpDojoGallery widget can be set to display thumbnail images in the center, left, right, top, or bottom of the page. When the thumbnails are set to the center position, the dojox.image.Lightbox module can be used to display the large image.

The widget receives a JSON object that contains the image information (location, width, height, etc). I store the information using dojo.data.ItemFileReadStore, so it was easy to add a pics-per-page option just be limiting the number items to be read within the store.

?View Code JAVASCRIPT
if (this.picsPerPage) {
	request = imageStore.fetch({onBegin: startFetch, onError: fetchFailed, onComplete: initGallery, start: 0, count: this.picsPerPage});
}  else {
	request = imageStore.fetch({onBegin: startFetch, onError: fetchFailed, onComplete: initGallery});
}

The gpDojoGallery widget was fairly simple to create, but it has enough options to be a very versatile photo gallery. You can view demos on my digitalvilliage.com site. The widget (and demos) can be downloaded from GitHub.

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gpDojoPortfolio: A Dojo Portfolio Widget

Ajax, Dojo, dojo-widgets
Jul20

I’m working on a new project that uses Dojo Toolkit and DJango. I haven’t started on the DJango back-end yet because I first need to create a few Dojo widgets. The first widget that I created is gpDojoPortfolio. As the name suggests, this widget will display a portfolio. Each item in the portfolio slides into view using the dojo.fx module.

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ui.imFeedBack – A JQuery UI Feedback Widget

Ajax, JQuery, UI Widgets
Jul05

When the web20.digitalvilliage site was nearly complete, I wanted to add a contact form. I like the feedback tabs that I have been seeing on websites recently (displayed on the right or left of the page), so I decided to build one. I was already using a JQuery UI theme on the site, so I decided to create a JQuery UI widget so that the color scheme of the feedback form would match the color scheme on the site.

This ui.imFeedBack widget is extremely versatile. The feedback tab can be placed on the right or left and can even be displayed as a dialog.

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Web 2.0 Domain Name Generator

Cool Sites
Jun30

I purchased the domain name digitalvilliage.com quite a few years ago. I wasn’t sure what I was going to do with it when I first purchased the name (but I knew that it was a great domain name). Although I still haven’t decided what the focus of the site should be, I decided, for now, to create a web 2.0 domain name generator on the site. I developed the site using CakePHP and jQuery. I created a JQuery plugin to provide the domain names ajaxally (a term that I added to wikipedia – and yes, I already purchased the domain name) .

The site divided into two subdomains (web20.digitalvilliage.com and galleries.digitalvilliage.com). I’ll discuss the galleries subdomain in a later post.

I’ve seen other web 2.0 domain name generators, but my site offers more than just web 2.0 domain name generation. The site contains two main buttons (web 2.0 and suggest)

Click the web 2.0 button and a domain name will be dynamically generated.

I you click the suggest button, a dialog box will be displayed with a name input field and a category dropdown. The categories are: automotive, art, books, business, clothing, computers/internet, entertainment, health/fitness, money/finance, music, politics, popular, romance, travel, and urban dictionary.

After entering a name and selecting a category, a list of domain names will be displayed. You can then click on the name and click the search button to find whether the name is available. If you click on a name from the ‘urban dictionary’ category, a popup will be displayed with the definition from urbandictionary.com. I’ve only added 40-50 names from urbandictionary.com – I plan to add more later.

After entering a name from the suggest or clicking the web 2.0 button, you can then search for the availability of the name.

If a domain name exists, the Google Page Rank, Alexa Rank, Google, Yahoo, and Bing BackLinks counts will be displayed. You will also be provided a link to the whois database for that name as well a link to Alexa Stats.

If the domain name does not exist, you will be provided a link to a number of domain name registrars.

I worked on this site on-and-off for about 6 months (whenever I had the time). I think that it’s pretty cool. The site provides an Ajax web 2.0 domain search generator and an Ajax domain search tool. Let me know what you think.

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Drupal, JQuery: Dropdown Menus

Ajax, Drupal, JQuery
Mar18

I needed to add Dropdown menus to a site that a designed using Drupal. I found a few modules (Nice Menus, etc) that would enable me to easily add dropdown menus to my site, but I wanted to use the CSS Drop-Down Menu Framework that I discussed in a previous post. With a little help from JQuery, I was able to add dropdown menus to my site without having to use a Drupal module.

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