Changing multiple jquery mobile “data-theme” property from one place

Question

I am using jquery mobile to develop my mobile website. I have to set the "data-theme" property from many places to incorporate a particular theme. Is there a place where I can change it once (like in a javascript function or something) but it would result in all my elements getting the theme? I have tried putting it into the style sheet but it doesnt work.

My htmlCode:

<!DOCTYPE html> 
<html>

<head>
    <script src="jquery.mobile-1.0/demos/jquery.js" type="text/javascript"></script>
    <script src="jquery.mobile-1.0/demos/jquery.mobile-1.0.min.js"  type="text/javascript"></script>
    <script src="CodeGeneral.js" type="text/javascript"></script>

    <link rel="stylesheet" href="jquery.mobile-1.0/demos/jquery.mobile-1.0.min.css">
    <link rel="stylesheet" href="StyleMaincss.css">

    <title>Home</title>
</head>

<body onload="GenerateData();" data-role = "page" >
    <div data-role="header" class="HeaderBar">
    <img src="Logos v2/Header.png" alt="" class="HeaderImage">
    </div> 

    //Content on page

    <div data-role="footer" class="NavBar" data-position="fixed">       
    <div data-role="navbar">
           //Navigation button creation
        </div>
    </div>
</body>

My javascript:

$(document).delegate("[data-role='page']", 'pagebeforecreate', 
    function () {
         $(this).attr('data-theme', 'a')
    }
 ); 

function GenerateData() {
    //Things carried out during loading
}

Answer 1

This is from the jQuery Mobile Docs:

The data-theme attribute can be applied to the header and footer containers to apply any of the lettered theme color swatches. While the data-theme attribute could be added to the content container, we recommend adding it instead to div or container that has been assigned the data-role="page" attribute to ensure that the background color is applied to the full page. When this is done, all widgets on the page will also inherit the theme specified in the page container. However, headers and footers will default to theme "a". If you want to have a page with, for example, only theme "b" for all its elements, including its header and footer, you will need to specify data-theme="b" to the page div as well as the header and footer divs.

Source: http://jquerymobile.com/demos/1.0/docs/pages/pages-themes.html

So basically if you add data-theme="a" to the data-role="page" tags then everything should inherit the a theme. You can test that by messing with the "theme swatch change" links at the top of the link above.

UPDATE

To programmatically change the theme of a page add this code to your site:

$(document).delegate('[data-role="page"]', 'pagecreate', function (e) {
    $(this).removeClass('ui-body-a ui-body-b ui-body-c ui-body-d ui-body-e').addClass('ui-body-a').attr('data-theme', 'a');
});

But this creates overhead for the user's browser while rendering the website so I suggest altering the hard-coded data-theme attributes on the data-role="page" tags.

UPDATE

You can also do this inside the mobileinit event handler by changing the page prototype :

<link rel="stylesheet" href="http://code.jquery.com/mobile/1.0/jquery.mobile-1.0.min.css" />
<script src="http://code.jquery.com/jquery-1.6.4.min.js"></script>
<script>
$(document).bind('mobileinit', function () {
    $.mobile.page.prototype.options.theme  = "a";
});
</script>
<script src="http://code.jquery.com/mobile/1.0/jquery.mobile-1.0.min.js"></script>

This will make any page without a set data-theme attribute default to the a theme.

Here is a demo: http://jsfiddle.net/tEbD5/3/

Changing multiple jquery mobile “data-theme” property from one place

Question

1 answers

solution1
6 ACCPTED 2011-12-12 18:06:06

Changing multiple jquery mobile “data-theme” property from one place

Question

1 answers

solution1 6 ACCPTED 2011-12-12 18:06:06

solution1
6 ACCPTED 2011-12-12 18:06:06