On one page of my WordPress site i use a photo-gallery. For this i need a js-file. Now the js-file is loading on everypage but its just needed one this specific page with the page id 2. Now the problem is, that is_page(2) is not working in the functions.php because the page id is not set then. Is it still possible to do this via functions.php or would you just add the script in the footer.php?
function footer_scripts()
{
// If query if current Page is not wp-login-php or admin page
if ($GLOBALS['pagenow'] != 'wp-login.php' && !is_admin()) {
wp_register_script('photo-gallery', get_template_directory_uri() . '/js/back-layer-photo-gallery.js', array('jquery'), '1.3', true);
wp_enqueue_script('photo-gallery');
}
}
add_action('init', 'footer_scripts');
you can add this code in function.php and fill it with the slug name of your page and of your script
// Load conditional scripts
function your_conditional_scripts()
{
if (is_page('pagenamehere')) {
wp_register_script('scriptname', get_template_directory_uri() .
'/js/scriptname.js', array('jquery'), '1.0.0'); // Conditional
script(s)
wp_enqueue_script('scriptname'); // Enqueue it!
}
}
add_action('wp_print_scripts', 'your_conditional_scripts'); // Add
Conditional Page Scripts
You can use page slug instead of page ID and use 'wp_enqueue_scripts' instead of 'init'. If you are using child theme use 'get_stylesheet_directory_uri()' in place of 'get_template_directory_uri()' otherwise you can leave it as it is.
add_action('wp_enqueue_scripts', 'enqueue_script');
function enqueue_script() {
if (is_page('page_slug_here')) { // Add slug in condition
wp_enqueue_script('photo-gallery', get_template_directory_uri().'/js/back-layer-photo-gallery.js', array( 'jquery' ), '1.0', true);
}
}
Related
I have a simple script that appends a class on scroll depth and would like to use it on my Wordpress site.
How should I go about adding it? I have the class pinpointed and know the CSS side, but I don't know how to get the script to register.
The script is:
$(window).scroll(function() {
var scroll = $(window).scrollTop();
if (scroll >= 100) {
$(".header").addClass("active");
} else {
$(".header").removeClass("active");
}
});
In your (child) theme's functions.php, add the following lines at the end:
function my_enqueue_script()
{
wp_enqueue_script( 'my_custom_script', get_template_directory_uri() .
'/js/my_custom_script.js', array('jquery'), '1.0.0', true );
}
add_action( 'wp_enqueue_scripts', 'my_enqueue_script' );
with your script inside the theme's subfolder '/js/my_custom_script.js'. Rename my_custom_script.js to anything you like.
I have a own Plugin and I want to add a css file to style the menu-page for this plugin in the backend. Right now the css file works for all pages in the backend but it should only works for my plugin.
function ww_contact_backend_style() {
wp_enqueue_style('admin-styles', '/wp-content/plugins/ww- contact/css/backend.css');
}
add_action('admin_enqueue_scripts', 'ww_contact_backend_style');
I tried this, but it didn´t work:
if(menu_page_url('ww_options')){}
Example: Load CSS File from a plugin on specific Admin Page
function load_custom_wp_admin_style($hook) {
// Load only on ?page=mypluginname
if($hook != 'toplevel_page_mypluginname') {
return;
}
wp_enqueue_style( 'custom_wp_admin_css', plugins_url('admin-style.css', __FILE__) );
}
add_action( 'admin_enqueue_scripts', 'load_custom_wp_admin_style' );
See wp doc
i have a website that is running the Master Slider Pro wordpress plugin and the iLightBox plugin. I am running a custom script in a custom.js file in wordpress child theme:
/* Link JavaScript file */
function custom_scripts() {
wp_register_script( 'custom-script', get_stylesheet_directory_uri() . '/assets/js/custom.js', array('jquery') , false, true );
wp_enqueue_script( 'custom-script' );
}
I am calling the custom file as per the below in my functions.php file:
jQuery(document).ready(function(){
(function(){
var groupsArr = [];
jQuery('[rel^="ilightbox["]').each(function () {
var group = this.getAttribute("rel");
jQuery.inArray(group, groupsArr) === -1 && groupsArr.push(group);
});
jQuery.each(groupsArr, function (i, groupName) {
jQuery('[rel="' + groupName + '"]').iLightBox({ /* options */ });
});
})();
});
The issue i am having is that sometimes it loads the custom script (i assume in the correct order) and my slider loads and the lightbox displays when i click the image... other times the slider gets stuck in a loading state and shows the errors:
Uncaught TypeError: jQuery(...).iLightBox is not a function
I believe i am loading the custom.js file after the jQuery file has loaded... what i am assuming is, that the lighbox plugin is sometimes loading after the jQuery and therefore loading after custom.js file which is why it cannot find the ilightbox function ?
Anyway i can prevent this ?
I have been doing some reading and spoke to my theme author (who has integrated the ilightbox function).
My code now looks like the below:
/* register script that defines ilightbox (in parent theme) */
wp_register_script( 'ilightbox_script', get_stylesheet_directory . '/includes/class-avada-scripts.php' );
/* Link JavaScript file */
function custom_scripts() {
wp_register_script( 'custom-script', get_stylesheet_directory_uri() . '/assets/js/custom.js', array('jquery', 'ilightbox_script') , false, true );
wp_enqueue_script( 'custom-script' );
}
add_action( 'wp_enqueue_scripts', 'custom_scripts', 99 );
I believe i have now registered the script that contains the ilightbox function (stored in my parent theme). I then called the custom.js file after jQuery and the registered script has loaded. However it still is not working. I also get the following error from the file i am now trying to register:
Uncaught SyntaxError: Unexpected token <
Maybe i have misunderstood everything, so i have copied what the theme author has said to me when i asked which fine defines the ilightbox function.. what do you think?
These scripts are enqueued in class-avada-scripts.php available in
following directory
/wp-content/themes/avada/includes
and all JS code is in main.min.js available in following directory
/wp-content/themes/avada/assets/js
However if you enable developer mode from
Wp admin -> appearance -> theme options -> advanced
then you can modify code in avada-lightbox.js and lightbox.js
available in same directory.
UPDATE (22/11/2015):
Latest update has me using:
/* Ensure jquery loads before iLightBox */
add_action( 'wp_enqueue_scripts', 'add_my_script' );
function add_my_script() {
wp_register_script( 'ilightbox_script', get_theme_root_uri() . '/Avada/includes/class-avada-scripts.php', array( 'jquery' ) );
wp_register_script( 'custom-script', get_stylesheet_directory_uri() . '/assets/js/custom.js' );
wp_enqueue_script('ilightbox_script');
wp_enqueue_script('custom-script');
}
Still same error :(
I want my plugin to register a script only in a certain page.
For example, inside my plugin file I want to write something like this:
if (is_page()) {
$pageid_current = get_the_ID();
$page_slug = get_post($pageid_current)->post_name;
if ($page_slug == 'articles'){
wp_register_script('myscript', '/someurl/main.js');
}
}
But I get the error:
is_page was called incorrectly. Conditional query tags do not work
before the query is run. Before then, they always return false. Please
see Debugging in WordPress for more information. (This message was
added in version 3.1.)
How can I, inside of a plugin, register a script in a certain page?
is_page() only work within template files.
And to use it within plugin files, you need to use it with the combination of template_redirect action hook.
This action hook executes just before WordPress determines which template page to load.
So following snippet would work:
add_action( 'template_redirect', 'plugin_is_page' );
function plugin_is_page() {
if ( is_page( 'articles' ) ) {
wp_register_script( 'my-js-handler', '/someurl/main.js', [], '1.0.0', true );
}
}
You could use is_page() after template redirect so you need to add in the hook like this :
add_action('template_redirect','your_function');
function your_function(){
if ( is_page('test') ) {
// do you thing.
}
}
You must register your script as if you want it to work everywhere.
You can de-register it after the job is done, like this:
function deregister_my_script() {
if (!is_page('page-d-exemple') ) {
wp_deregister_script( 'custom-script-1' );
}
}
add_action('wp_print_scripts', 'deregister_my_script', 100 );
When custom php function is called, need to register and enqueue script from within that called function. Then the whole thing gets added to wp_footer hook.
the echoed div in code below shows up in the developer tool, but the script is not showing or even giving any errors, i.e.- if this were an issue with the file path, then there would be resource error, yes? Any comments as to why there wouldn't be an error in loading the script?
The code:
if(get_option('show_content')) {
function add_time() {
echo '<div id="txt">' . '</div>';
// add script tut pro word plugin dev ch12.3
function py_enqueue_script () {
wp_register_script( 'timescript', plugin_url('../time.js', __FILE__));
wp_enqueue_script( 'timescript');
} // end py_enqueue_script
add_action('wp_enqueue_scripts', py_enqueue_script);
} // end show add_time
add_action("wp_footer",add_time);
} // end if
Try this (spotted some syntax errors):
if(get_option('show_content')) {
function add_time() {
echo '<div id="txt">' . '</div>';
// add script tut pro word plugin dev ch12.3
function py_enqueue_script () {
wp_register_script( 'timescript', plugins_url('../time.js', __FILE__), false, null, false));
wp_enqueue_script( 'timescript');
} // end py_enqueue_script
add_action('wp_enqueue_scripts', 'py_enqueue_script');
} // end show add_time
add_action('wp_footer', 'add_time');
} // end if
Brackets on add_action custom action (i.E. 'add_time' instead of add_time).
Plugins URL Function goes plugins_url not plugin_url
Some very good additional article on enqueueing scripts: http://wp.tutsplus.com/tutorials/the-ins-and-outs-of-the-enqueue-script-for-wordpress-themes-and-plugins/
Some additional info on plugins_url:
http://codex.wordpress.org/Function_Reference/plugins_url