如何在WordPress主页上自动播放YouTube视频
How to make a YouTube video play automatically on WordPress home page
我需要向我的CHILD主题（functions.php）添加一个操作。
我需要它来激活和启动YouTube视频，并在用户打开网站主页时自动播放。
经过大量研究，我确信我需要使用（函数参考/wp-enqueue脚本）
*--->**但我的PHP不够好，无法实现这一点..
现在，我的（header.php）文件中有javascript（如下），因此它将加载并自动播放视频。
但这当然不好，因为每次有人打开它时，它都会在每一页上播放
这是我的测试平台：http://tonystates.com/
注意视频是如何自动加载和播放的，这正是我们想要的，但仅适用于主页。
下面是我自动打开YouTube视频的javascript，它可以工作。。。。。*现在它在（header.php）文件中。
（（***但这是我们不能在header.php文件中使用的代码，因为它可以在网站的每个页面上播放视频））..
$(document).ready(function() {
$.fancybox.open({
type: 'iframe',
href: 'http://www.youtube.com/embed/6muHD6bdDYQ?rel=0&border=&autoplay=1',
width: '70%',
height: '70%'})
$('.various').fancybox({
maxWidth : 800,
maxHeight : 600,
fitToView : false,
width : '70%',
height : '70%',
autoSize : false,
closeClick : false,
openEffect : 'none',
closeEffect : 'none'
});
});
下面是我的家长主题函数.php代码供参考。
<?php
/**
* Twenty Twelve functions and definitions
*
* Sets up the theme and provides some helper functions, which are used
* in the theme as custom template tags. Others are attached to action and
* filter hooks in WordPress to change core functionality.
*
* When using a child theme (see http://codex.wordpress.org/Theme_Development and
* http://codex.wordpress.org/Child_Themes), you can override certain functions
* (those wrapped in a function_exists() call) by defining them first in your child theme's
* functions.php file. The child theme's functions.php file is included before the parent
* theme's file, so the child theme functions would be used.
*
* Functions that are not pluggable (not wrapped in function_exists()) are instead attached
* to a filter or action hook.
*
* For more information on hooks, actions, and filters, @link http://codex.wordpress.org/Plugin_API
*
* @package WordPress
* @subpackage Twenty_Twelve
* @since Twenty Twelve 1.0
*/
// Set up the content width value based on the theme's design and stylesheet.
if ( ! isset( $content_width ) )
$content_width = 625;
/**
* Twenty Twelve setup.
*
* Sets up theme defaults and registers the various WordPress features that
* Twenty Twelve supports.
*
* @uses load_theme_textdomain() For translation/localization support.
* @uses add_editor_style() To add a Visual Editor stylesheet.
* @uses add_theme_support() To add support for post thumbnails, automatic feed links,
* custom background, and post formats.
* @uses register_nav_menu() To add support for navigation menus.
* @uses set_post_thumbnail_size() To set a custom post thumbnail size.
*
* @since Twenty Twelve 1.0
*/
function twentytwelve_setup() {
/*
* Makes Twenty Twelve available for translation.
*
* Translations can be added to the /languages/ directory.
* If you're building a theme based on Twenty Twelve, use a find and replace
* to change 'twentytwelve' to the name of your theme in all the template files.
*/
load_theme_textdomain( 'twentytwelve', get_template_directory() . '/languages' );
// This theme styles the visual editor with editor-style.css to match the theme style.
add_editor_style();
// Adds RSS feed links to <head> for posts and comments.
add_theme_support( 'automatic-feed-links' );
// This theme supports a variety of post formats.
add_theme_support( 'post-formats', array( 'aside', 'image', 'link', 'quote', 'status' ) );
// This theme uses wp_nav_menu() in one location.
register_nav_menu( 'primary', __( 'Primary Menu', 'twentytwelve' ) );
/*
* This theme supports custom background color and image,
* and here we also set up the default background color.
*/
add_theme_support( 'custom-background', array(
'default-color' => 'e6e6e6',
) );
// This theme uses a custom image size for featured images, displayed on "standard" posts.
add_theme_support( 'post-thumbnails' );
set_post_thumbnail_size( 624, 9999 ); // Unlimited height, soft crop
}
add_action( 'after_setup_theme', 'twentytwelve_setup' );
/**
* Add support for a custom header image.
*/
require( get_template_directory() . '/inc/custom-header.php' );
/**
* Return the Google font stylesheet URL if available.
*
* The use of Open Sans by default is localized. For languages that use
* characters not supported by the font, the font can be disabled.
*
* @since Twenty Twelve 1.2
*
* @return string Font stylesheet or empty string if disabled.
*/
function twentytwelve_get_font_url() {
$font_url = '';
/* translators: If there are characters in your language that are not supported
* by Open Sans, translate this to 'off'. Do not translate into your own language.
*/
if ( 'off' !== _x( 'on', 'Open Sans font: on or off', 'twentytwelve' ) ) {
$subsets = 'latin,latin-ext';
/* translators: To add an additional Open Sans character subset specific to your language,
* translate this to 'greek', 'cyrillic' or 'vietnamese'. Do not translate into your own language.
*/
$subset = _x( 'no-subset', 'Open Sans font: add new subset (greek, cyrillic, vietnamese)', 'twentytwelve' );
if ( 'cyrillic' == $subset )
$subsets .= ',cyrillic,cyrillic-ext';
elseif ( 'greek' == $subset )
$subsets .= ',greek,greek-ext';
elseif ( 'vietnamese' == $subset )
$subsets .= ',vietnamese';
$protocol = is_ssl() ? 'https' : 'http';
$query_args = array(
'family' => 'Open+Sans:400italic,700italic,400,700',
'subset' => $subsets,
);
$font_url = add_query_arg( $query_args, "$protocol://fonts.googleapis.com/css" );
}
return $font_url;
}
/**
* Enqueue scripts and styles for front-end.
*
* @since Twenty Twelve 1.0
*
* @return void
*/
function twentytwelve_scripts_styles() {
global $wp_styles;
/*
* Adds JavaScript to pages with the comment form to support
* sites with threaded comments (when in use).
*/
if ( is_singular() && comments_open() && get_option( 'thread_comments' ) )
wp_enqueue_script( 'comment-reply' );
// Adds JavaScript for handling the navigation menu hide-and-show behavior.
wp_enqueue_script( 'twentytwelve-navigation', get_template_directory_uri() . '/js/navigation.js', array(), '1.0', true );
$font_url = twentytwelve_get_font_url();
if ( ! empty( $font_url ) )
wp_enqueue_style( 'twentytwelve-fonts', esc_url_raw( $font_url ), array(), null );
// Loads our main stylesheet.
wp_enqueue_style( 'twentytwelve-style', get_stylesheet_uri() );
// Loads the Internet Explorer specific stylesheet.
wp_enqueue_style( 'twentytwelve-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentytwelve-style' ), '20121010' );
$wp_styles->add_data( 'twentytwelve-ie', 'conditional', 'lt IE 9' );
}
add_action( 'wp_enqueue_scripts', 'twentytwelve_scripts_styles' );
/**
* Filter TinyMCE CSS path to include Google Fonts.
*
* Adds additional stylesheets to the TinyMCE editor if needed.
*
* @uses twentytwelve_get_font_url() To get the Google Font stylesheet URL.
*
* @since Twenty Twelve 1.2
*
* @param string $mce_css CSS path to load in TinyMCE.
* @return string Filtered CSS path.
*/
function twentytwelve_mce_css( $mce_css ) {
$font_url = twentytwelve_get_font_url();
if ( empty( $font_url ) )
return $mce_css;
if ( ! empty( $mce_css ) )
$mce_css .= ',';
$mce_css .= esc_url_raw( str_replace( ',', '%2C', $font_url ) );
return $mce_css;
}
add_filter( 'mce_css', 'twentytwelve_mce_css' );
/**
* Filter the page title.
*
* Creates a nicely formatted and more specific title element text
* for output in head of document, based on current view.
*
* @since Twenty Twelve 1.0
*
* @param string $title Default title text for current view.
* @param string $sep Optional separator.
* @return string Filtered title.
*/
function twentytwelve_wp_title( $title, $sep ) {
global $paged, $page;
if ( is_feed() )
return $title;
// Add the site name.
$title .= get_bloginfo( 'name' );
// Add the site description for the home/front page.
$site_description = get_bloginfo( 'description', 'display' );
if ( $site_description && ( is_home() || is_front_page() ) )
$title = "$title $sep $site_description";
// Add a page number if necessary.
if ( $paged >= 2 || $page >= 2 )
$title = "$title $sep " . sprintf( __( 'Page %s', 'twentytwelve' ), max( $paged, $page ) );
return $title;
}
add_filter( 'wp_title', 'twentytwelve_wp_title', 10, 2 );
/**
* Filter the page menu arguments.
*
* Makes our wp_nav_menu() fallback -- wp_page_menu() -- show a home link.
*
* @since Twenty Twelve 1.0
*/
function twentytwelve_page_menu_args( $args ) {
if ( ! isset( $args['show_home'] ) )
$args['show_home'] = true;
return $args;
}
add_filter( 'wp_page_menu_args', 'twentytwelve_page_menu_args' );
/**
* Register sidebars.
*
* Registers our main widget area and the front page widget areas.
*
* @since Twenty Twelve 1.0
*/
function twentytwelve_widgets_init() {
register_sidebar( array(
'name' => __( 'Main Sidebar', 'twentytwelve' ),
'id' => 'sidebar-1',
'description' => __( 'Appears on posts and pages except the optional Front Page template, which has its own widgets', 'twentytwelve' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h3 class="widget-title">',
'after_title' => '</h3>',
) );
register_sidebar( array(
'name' => __( 'First Front Page Widget Area', 'twentytwelve' ),
'id' => 'sidebar-2',
'description' => __( 'Appears when using the optional Front Page template with a page set as Static Front Page', 'twentytwelve' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h3 class="widget-title">',
'after_title' => '</h3>',
) );
register_sidebar( array(
'name' => __( 'Second Front Page Widget Area', 'twentytwelve' ),
'id' => 'sidebar-3',
'description' => __( 'Appears when using the optional Front Page template with a page set as Static Front Page', 'twentytwelve' ),
'before_widget' => '<aside id="%1$s" class="widget %2$s">',
'after_widget' => '</aside>',
'before_title' => '<h3 class="widget-title">',
'after_title' => '</h3>',
) );
}
add_action( 'widgets_init', 'twentytwelve_widgets_init' );
if ( ! function_exists( 'twentytwelve_content_nav' ) ) :
/**
* Displays navigation to next/previous pages when applicable.
*
* @since Twenty Twelve 1.0
*/
function twentytwelve_content_nav( $html_id ) {
global $wp_query;
$html_id = esc_attr( $html_id );
if ( $wp_query->max_num_pages > 1 ) : ?>
<nav id="<?php echo $html_id; ?>" class="navigation" role="navigation">
<h3 class="assistive-text"><?php _e( 'Post navigation', 'twentytwelve' ); ?></h3>
<div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">←</span> Older posts', 'twentytwelve' ) ); ?></div>
<div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'twentytwelve' ) ); ?></div>
</nav><!-- #<?php echo $html_id; ?> .navigation -->
<?php endif;
}
endif;
if ( ! function_exists( 'twentytwelve_comment' ) ) :
/**
* Template for comments and pingbacks.
*
* To override this walker in a child theme without modifying the comments template
* simply create your own twentytwelve_comment(), and that function will be used instead.
*
* Used as a callback by wp_list_comments() for displaying the comments.
*
* @since Twenty Twelve 1.0
*
* @return void
*/
function twentytwelve_comment( $comment, $args, $depth ) {
$GLOBALS['comment'] = $comment;
switch ( $comment->comment_type ) :
case 'pingback' :
case 'trackback' :
// Display trackbacks differently than normal comments.
?>
<li <?php comment_class(); ?> id="comment-<?php comment_ID(); ?>">
<p><?php _e( 'Pingback:', 'twentytwelve' ); ?> <?php comment_author_link(); ?> <?php edit_comment_link( __( '(Edit)', 'twentytwelve' ), '<span class="edit-link">', '</span>' ); ?></p>
<?php
break;
default :
// Proceed with normal comments.
global $post;
?>
<li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
<article id="comment-<?php comment_ID(); ?>" class="comment">
<header class="comment-meta comment-author vcard">
<?php
echo get_avatar( $comment, 44 );
printf( '<cite><b class="fn">%1$s</b> %2$s</cite>',
get_comment_author_link(),
// If current post author is also comment author, make it known visually.
( $comment->user_id === $post->post_author ) ? '<span>' . __( 'Post author', 'twentytwelve' ) . '</span>' : ''
);
printf( '<a href="%1$s"><time datetime="%2$s">%3$s</time></a>',
esc_url( get_comment_link( $comment->comment_ID ) ),
get_comment_time( 'c' ),
/* translators: 1: date, 2: time */
sprintf( __( '%1$s at %2$s', 'twentytwelve' ), get_comment_date(), get_comment_time() )
);
?>
</header><!-- .comment-meta -->
<?php if ( '0' == $comment->comment_approved ) : ?>
<p class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.', 'twentytwelve' ); ?></p>
<?php endif; ?>
<section class="comment-content comment">
<?php comment_text(); ?>
<?php edit_comment_link( __( 'Edit', 'twentytwelve' ), '<p class="edit-link">', '</p>' ); ?>
</section><!-- .comment-content -->
<div class="reply">
<?php comment_reply_link( array_merge( $args, array( 'reply_text' => __( 'Reply', 'twentytwelve' ), 'after' => ' <span>↓</span>', 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
</div><!-- .reply -->
</article><!-- #comment-## -->
<?php
break;
endswitch; // end comment_type check
}
endif;
if ( ! function_exists( 'twentytwelve_entry_meta' ) ) :
/**
* Set up post entry meta.
*
* Prints HTML with meta information for current post: categories, tags, permalink, author, and date.
*
* Create your own twentytwelve_entry_meta() to override in a child theme.
*
* @since Twenty Twelve 1.0
*
* @return void
*/
function twentytwelve_entry_meta() {
// Translators: used between list items, there is a space after the comma.
$categories_list = get_the_category_list( __( ', ', 'twentytwelve' ) );
// Translators: used between list items, there is a space after the comma.
$tag_list = get_the_tag_list( '', __( ', ', 'twentytwelve' ) );
$date = sprintf( '<a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date" datetime="%3$s">%4$s</time></a>',
esc_url( get_permalink() ),
esc_attr( get_the_time() ),
esc_attr( get_the_date( 'c' ) ),
esc_html( get_the_date() )
);
$author = sprintf( '<span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s" rel="author">%3$s</a></span>',
esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
esc_attr( sprintf( __( 'View all posts by %s', 'twentytwelve' ), get_the_author() ) ),
get_the_author()
);
// Translators: 1 is category, 2 is tag, 3 is the date and 4 is the author's name.
if ( $tag_list ) {
$utility_text = __( 'This entry was posted in %1$s and tagged %2$s on %3$s<span class="by-author"> by %4$s</span>.', 'twentytwelve' );
} elseif ( $categories_list ) {
$utility_text = __( 'This entry was posted in %1$s on %3$s<span class="by-author"> by %4$s</span>.', 'twentytwelve' );
} else {
$utility_text = __( 'This entry was posted on %3$s<span class="by-author"> by %4$s</span>.', 'twentytwelve' );
}
printf(
$utility_text,
$categories_list,
$tag_list,
$date,
$author
);
}
endif;
/**
* Extend the default WordPress body classes.
*
* Extends the default WordPress body class to denote:
* 1. Using a full-width layout, when no active widgets in the sidebar
* or full-width template.
* 2. Front Page template: thumbnail in use and number of sidebars for
* widget areas.
* 3. White or empty background color to change the layout and spacing.
* 4. Custom fonts enabled.
* 5. Single or multiple authors.
*
* @since Twenty Twelve 1.0
*
* @param array $classes Existing class values.
* @return array Filtered class values.
*/
function twentytwelve_body_class( $classes ) {
$background_color = get_background_color();
$background_image = get_background_image();
if ( ! is_active_sidebar( 'sidebar-1' ) || is_page_template( 'page-templates/full-width.php' ) )
$classes[] = 'full-width';
if ( is_page_template( 'page-templates/front-page.php' ) ) {
$classes[] = 'template-front-page';
if ( has_post_thumbnail() )
$classes[] = 'has-post-thumbnail';
if ( is_active_sidebar( 'sidebar-2' ) && is_active_sidebar( 'sidebar-3' ) )
$classes[] = 'two-sidebars';
}
if ( empty( $background_image ) ) {
if ( empty( $background_color ) )
$classes[] = 'custom-background-empty';
elseif ( in_array( $background_color, array( 'fff', 'ffffff' ) ) )
$classes[] = 'custom-background-white';
}
// Enable custom font class only if the font CSS is queued to load.
if ( wp_style_is( 'twentytwelve-fonts', 'queue' ) )
$classes[] = 'custom-font-enabled';
if ( ! is_multi_author() )
$classes[] = 'single-author';
return $classes;
}
add_filter( 'body_class', 'twentytwelve_body_class' );
/**
* Adjust content width in certain contexts.
*
* Adjusts content_width value for full-width and single image attachment
* templates, and when there are no active widgets in the sidebar.
*
* @since Twenty Twelve 1.0
*
* @return void
*/
function twentytwelve_content_width() {
if ( is_page_template( 'page-templates/full-width.php' ) || is_attachment() || ! is_active_sidebar( 'sidebar-1' ) ) {
global $content_width;
$content_width = 960;
}
}
add_action( 'template_redirect', 'twentytwelve_content_width' );
/**
* Register postMessage support.
*
* Add postMessage support for site title and description for the Customizer.
*
* @since Twenty Twelve 1.0
*
* @param WP_Customize_Manager $wp_customize Customizer object.
* @return void
*/
function twentytwelve_customize_register( $wp_customize ) {
$wp_customize->get_setting( 'blogname' )->transport = 'postMessage';
$wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage';
$wp_customize->get_setting( 'header_textcolor' )->transport = 'postMessage';
}
add_action( 'customize_register', 'twentytwelve_customize_register' );
/**
* Enqueue Javascript postMessage handlers for the Customizer.
*
* Binds JS handlers to make the Customizer preview reload changes asynchronously.
*
* @since Twenty Twelve 1.0
*
* @return void
*/
function twentytwelve_customize_preview_js() {
wp_enqueue_script( 'twentytwelve-customizer', get_template_directory_uri() . '/js/theme-customizer.js', array( 'customize-preview' ), '20130301', true );
}
add_action( 'customize_preview_init', 'twentytwelve_customize_preview_js' );
下面是我的CHILD主题函数.php代码。
（（***这是我认为我需要使用（Function Reference/wp-enqueue脚本）添加一个操作以使其调用该JavaScript并仅在主页上加载它的地方。））
<?php
/**
* Twenty Twelve child theme functions file
*
*/
function tsyoutube_autoplay_script() {
if(is_front_page()){
wp_register_script( 'fancybox_auto_open', get_stylesheet_directory_uri().'/js/fancybox_auto_open.js', array());
wp_enqueue_script( 'fancybox_auto_open' );
}
}
add_action( 'wp_enqueue_scripts', 'tsyoutube_autoplay_script' );
以下是我为了做我需要做的事情已经研究了好几个小时的信息，但它很模糊，我不知道如何让它发挥作用。
从WordPress Codex页面：函数参考/wp入队脚本，
-说明
如果脚本尚未包含，并且所有依赖项都已注册，则根据脚本依赖项在正确的时间将脚本文件链接到生成的页面。您可以使用wp_register_script（）函数将脚本链接到以前注册的句柄，也可以为该函数提供链接脚本所需的所有参数。
以上是将JavaScript链接到WordPress生成的页面的推荐方法
感谢大家的关注：）我真的很感谢您的帮助：）致以最良好的问候&非常感谢。Tony States.
编辑/添加如下11-24-13
感谢Gurtrobe的帮助，我无法将我的评论放在评论框中？是不是太长了？
我上传了我的脚本fancybox_auto_open.js/www/wp-content/themes/js/fancybox_auto_open.js
这是下面的：
$(document).ready(function() {
$.fancybox.open({
type:'iframe',
href: 'http://www.youtube.com/embed/6muHD6bdDYQ?rel=0&border=&autoplay=1',
width: '70%',
height:'70%'})
$('.various').fancybox({
maxWidth : 800,
maxHeight : 600,
fitToView : false,
width : '70%',
height : '70%',
autoSize : false,
closeClick : false,
openEffect : 'none',
closeEffect : 'none'
});
});
并将我的functions.php代码更改为以下代码：
function tsyoutube_autoplay_script() {
if(is_front_page()){
wp_register_script( 'fancybox_auto_open', get_stylesheet_directory_uri().'/js/fancybox_auto_open.js', array());
wp_enqueue_script( 'fancybox_auto_open' );
}
}
add_action( 'wp_enqueue_scripts', 'tsyoutube_autoplay_script' );
再次感谢所有的帮助：）
致问候，
Tony
我已经根据您的初始回复更新了我的答案。
首先，/plugins文件夹应该保留给格式正确的Wordpress插件。这个链接应该让你开始：Wordpress插件API。我不想说这里，因为它有点切线。
因此，在本练习中，我将假设您的JS文件位于主题目录中一个名为"JS"的文件夹中。请确保删除JS文件中的打开和关闭脚本标记。
然后在functions.php中复制/粘贴以下内容：
function abc_setup_scripts() {
if(is_front_page()){
wp_register_script( 'fancybox_auto_open', get_stylesheet_directory_uri().'/js/fancybox.auto.open.js', array());
wp_enqueue_script( 'fancybox_auto_open' );
}
}
add_action( 'wp_enqueue_scripts', 'abc_setup_scripts' );
第一部分：
function abc_setup_scripts() {
创建一个新函数。重要的是要确保你的函数名称不会与第三方插件等中的另一个函数冲突，所以我们在开头添加了一些独特的东西——在这种情况下是"abc_"。例如，如果您的项目名为"Tony’s Window Cleaning"，您可能会使用"twc_"作为自己编写的所有函数的前缀。
然后，我们检查一下我们是否在您指定为Wordpress首页的页面上，位于"设置">"阅读"下，行为：
if(is_front_page()){
如果你的首页没有这样设置，那么这个功能就不会运行。理想情况下，你应该这样设置，因为Wordpress就是这样设计的。
然后，假设我们在首页上，我们的函数将运行，Wordpress将收到我们要加载到HTML头中的脚本的通知。注意，我将"fancybox.auto.open"更改为"fancybox _auto_open"。最好使用下划线来避免出现奇怪的错误。
上面写着：
get_stylesheet_directory_uri()
是一个方便的Wordpress功能，可以打印出活动主题文件夹目录的路径。如果您最终将脚本移动到插件文件夹中，则需要更改这一行。请参阅本页的使用内容：插件URL
看看你怎么做。
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