February 12, 2011 
Definition:
function user_can_richedit() {}
Whether the user should have a WYSIWIG editor.
Checks that the user requires a WYSIWIG editor and that the editor is supported in the users browser.
Defined filters
- user_can_richedit
apply_filters('user_can_richedit', $wp_rich_edit)
Source code
function user_can_richedit() {
global $wp_rich_edit, $is_gecko, $is_opera, $is_safari, $is_chrome, $is_iphone, $is_IE;
if ( !isset($wp_rich_edit) ) {
$wp_rich_edit = false;
if ( get_user_option( 'rich_editing' ) == 'true' || !is_user_logged_in() ) { // default to 'true' for logged out users
if ( $is_safari ) {
if ( !$is_iphone || ( preg_match( '!AppleWebKit/(\d+)!', $_SERVER['HTTP_USER_AGENT'], $match ) && intval($match[1]) >= 534 ) )
$wp_rich_edit = true;
} elseif ( $is_gecko || $is_opera || $is_chrome || $is_IE ) {
$wp_rich_edit = true;
}
}
}
return apply_filters('user_can_richedit', $wp_rich_edit);
}
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