Question

get_shortcut_link()

Retrieves the Press This bookmarklet link.

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description

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源代码

File: wp-includes/link-template.php

function get_shortcut_link() {
	global $is_IE;

	include_once( ABSPATH . 'wp-admin/includes/class-wp-press-this.php' );

	$link = '';

	if ( $is_IE ) {
		/*
		 * Return the old/shorter bookmarklet code for MSIE 8 and lower,
		 * since they only support a max length of ~2000 characters for
		 * bookmark[let] URLs, which is way to small for our smarter one.
		 * Do update the version number so users do not get the "upgrade your
		 * bookmarklet" notice when using PT in those browsers.
		 */
		$ua = $_SERVER['HTTP_USER_AGENT'];

		if ( ! empty( $ua ) && preg_match( '/\bMSIE (\d)/', $ua, $matches ) && (int) $matches[1] <= 8 ) {
			$url = wp_json_encode( admin_url( 'press-this.php' ) );

			$link = 'javascript:var d=document,w=window,e=w.getSelection,k=d.getSelection,x=d.selection,' .
				's=(e?e():(k)?k():(x?x.createRange().text:0)),f=' . $url . ',l=d.location,e=encodeURIComponent,' .
				'u=f+"?u="+e(l.href)+"&t="+e(d.title)+"&s="+e(s)+"&v=' . WP_Press_This::VERSION . '";' .
				'a=function(){if(!w.open(u,"t","toolbar=0,resizable=1,scrollbars=1,status=1,width=600,height=700"))l.href=u;};' .
				'if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else a();void(0)';
		}
	}

	if ( empty( $link ) ) {
		$src = @file_get_contents( ABSPATH . 'wp-admin/js/bookmarklet.min.js' );

		if ( $src ) {
			$url = wp_json_encode( admin_url( 'press-this.php' ) . '?v=' . WP_Press_This::VERSION );
			$link = 'javascript:' . str_replace( 'window.pt_url', $url, $src );
		}
	}

	$link = str_replace( array( "\r", "\n", "\t" ),  '', $link );

	/**
	 * Filters the Press This bookmarklet link.
	 *
	 * @since 2.6.0
	 *
	 * @param string $link The Press This bookmarklet link.
	 */
	return apply_filters( 'shortcut_link', $link );
}

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更新日志

Version	description
2.6.0	Introduced.

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相关函数

Uses

• wp-includes/functions.php: wp_json_encode()
• wp-includes/link-template.php: admin_url()
• wp-includes/link-template.php: shortcut_link
• wp-includes/plugin.php: apply_filters()

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User Contributed Notes