jquery.FB.wallposter.js

/* jQuery Plugin post on users wall
 * 
 * Needs FB Api and jquery.tmpl to be loaded before
 * 
 */

(function( $ ){
    $.fn.wallPoster = function(method) {
        var settings = {
            'template' : $('#wallpostTemplate'),
            'postedTemplate' : $('#wallpostedTemplate'),
            'friend' : { id : 1, name: ''},
        }
        
        var methods = {
            init : function(options) {
                if ( options ) { 
                     $.extend( settings, options );
                }
                return this.each(function() {
                    settings.template.tmpl(settings.friend).appendTo($(this));
                })
            },
            setFriend : function(friend, options) {
                if ( options ) { 
                     $.extend( settings, options );
                }
                if (typeof(friend) == 'object') {
                    settings.friend = friend
                } else {
                    $.error('Friend should be an object like { id : uid, name : "first last" }');
                }
                return this.each(function() {
                    var input = $($(this).children()[0]);
                    element = $(this);
                    input = settings.template.tmpl(settings.friend).replaceAll(input);
                    input.find('.wallpostOverlay').hide();
                    input.find('button').click(function() {
                        FB.api('/' + settings.friend.id + '/feed', 'post', {
                            message : input.find('textarea[name="message"]').val(),
                            link : settings.link
                        }, function(response) {
                            if (!response || response.error) {
                                var $dialog = $('<div></div>')
                                    .html('Konnte nicht auf die Pinnwand schreiben.' + response.error)
                                    .dialog({
                                        autoOpen: true,
                                        modal : true,
                                        title: 'Es ist ein Fehler aufgetreten'
                                    });
                            } else {
                                element.trigger('posted', response);
                                input.after(settings.postedTemplate.tmpl({ id : settings.friend.id, message : input.find('textarea[name="message"]').val() }));
                                settings.friend = 0;
                                input = settings.template.tmpl(settings.friend).replaceAll(input);
                            }
                        });
                    });
                });
            }
        }
        
        // Method calling logic
        if ( methods[method] ) {
            return methods[ method ].apply( this, Array.prototype.slice.call( arguments, 1 ));
        } else if ( typeof method === 'object' || ! method ) {
            return methods.init.apply( this, arguments );
        } else {
            $.error( 'Method ' +  method + ' does not exist on jQuery.wallPoster' );
        }
    }
})( jQuery );