Typographic Quotes in WordPress

typographic-quotes.php

/***********************************
 * use in your theme functions.php
 * or wordpress plugin
 * correct quotes in multilingual sites
 * http://codex.wordpress.org/Quicktags_API
 ***********************************/
 
function pptf_add_german_quotes() { 
	if (wp_script_is('quicktags')) {
?>
    <script type="text/javascript">
		QTags.addButton( 'german_quotes', '„cite“', '„', '“', '', 'German Quotes', '' );
		QTags.addButton( 'french_quotes', '«&nbsp;cite&nbsp;»','« ',  ' »', '', 'French Quotes', '' );
		QTags.addButton( 'italian_quotes', '«cite»','«',  '»', '', 'Italian Quotes', '' );
		QTags.addButton( 'dechevron_quotes', '»cite«','»',  '«', '', 'German Chevrons', '' );
    </script>
<?php }
}
add_action('admin_print_footer_scripts', 'pptf_add_german_quotes' );

/***********************************
 * visual editor quotes buttons
 ***********************************/
 
 function pptf_add_mce_buttons() {
	// check user permissions
	if ( !current_user_can( 'edit_posts' ) && !current_user_can( 'edit_pages' ) ) {
		return;
	}
	// check if WYSIWYG is enabled
	if ( 'true' == get_user_option( 'rich_editing' ) ) {
		add_filter( 'mce_external_plugins', 'pptf_add_tinymce_plugins' );
		add_filter( 'mce_buttons', 'pptf_register_mce_button' );
	}
}
add_action('admin_head', 'pptf_add_mce_buttons');

// Declare script for new button
function pptf_add_tinymce_plugins( $plugin_array ) {
	$plugin_array['de_quotes_button'] = get_template_directory_uri() .'/js/ve_custom_buttons.js';
	$plugin_array['fr_quotes_button'] = get_template_directory_uri() .'/js/ve_custom_buttons.js';
	$plugin_array['it_quotes_button'] = get_template_directory_uri() .'/js/ve_custom_buttons.js';
	$plugin_array['de_chevron_button'] = get_template_directory_uri() .'/js/ve_custom_buttons.js';
	return $plugin_array;
}

// Register new button in the editor
function pptf_register_mce_button( $buttons ) {
	array_push( $buttons, 'de_quotes_button' );
	array_push( $buttons, 'fr_quotes_button' );
	array_push( $buttons, 'it_quotes_button' );
	array_push( $buttons, 'de_chevron_button' );
	return $buttons;
}

ve_custom_buttons.js

(function() {
    tinymce.create('tinymce.plugins.de_quotes_button', {
        init : function(ed, url) {
            ed.addButton('de_quotes_button', {
                text: '„cite“',
				onclick : function() {
                     ed.selection.setContent('„' + ed.selection.getContent() + '“');
                }
            });
        },
        createControl : function(n, cm) {
            return null;
        },
    });
    tinymce.PluginManager.add('de_quotes_button', tinymce.plugins.de_quotes_button);
	
    tinymce.create('tinymce.plugins.fr_quotes_button', {
        init : function(ed, url) {
            ed.addButton('fr_quotes_button', {
                text: '« cite »',
				onclick : function() {
                     ed.selection.setContent('« ' + ed.selection.getContent() + ' »');
                }
            });
        },
        createControl : function(n, cm) {
            return null;
        },
    });
    tinymce.PluginManager.add('fr_quotes_button', tinymce.plugins.fr_quotes_button);	
	
    tinymce.create('tinymce.plugins.it_quotes_button', {
        init : function(ed, url) {
            ed.addButton('it_quotes_button', {
                text: '«cite»',
				onclick : function() {
                     ed.selection.setContent('«' + ed.selection.getContent() + '»');
                }
            });
        },
        createControl : function(n, cm) {
            return null;
        },
    });
    tinymce.PluginManager.add('it_quotes_button', tinymce.plugins.it_quotes_button);	

    tinymce.create('tinymce.plugins.de_chevron_button', {
        init : function(ed, url) {
            ed.addButton('de_chevron_button', {
                text: '»cite«',
				onclick : function() {
                     ed.selection.setContent('»' + ed.selection.getContent() + '«');
                }
            });
        },
        createControl : function(n, cm) {
            return null;
        },
    });
    tinymce.PluginManager.add('de_chevron_button', tinymce.plugins.de_chevron_button);		
})();