/*
 * jQuery Fast Confirm
 * version: 1.1.0 (2010-09-28)
 * @requires jQuery v1.3.2 or later
 *
 * Examples and documentation at: http://blog.pierrejeanparra.com/jquery-plugins/fast-confirm/
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */
;(function($) {
    
    $.fn.fastConfirm = function(options) {
        var params;
        
        if (!this.length) {
            return this;
        }
            
        $.fastConfirm = {
            defaults: {
                position: 'bottom',
                offset: {top: 0, left: 0},
                questionText: "",
                proceedText: "Подтвердить",
                cancelText: "Отмена",
                fastConfirmClass: "fast_confirm",
                onProceed: function(trigger) {},
                onCancel: function(trigger) {}
            }
        };
        
        params = $.extend($.fastConfirm.defaults, options || {});
        
        return this.each(function() {
            var offset,
                topOffset,
                leftOffset,
                trigger = this,
                $confirmYes = $('<a class="' + params.fastConfirmClass + '_proceed">' + params.proceedText + '</a>'),
                $confirmNo = $('<a class="' + params.fastConfirmClass + '_cancel">' + params.cancelText + '</a>'),
                $confirmBox = $('<div class="' + params.fastConfirmClass + '"><div class="' + params.fastConfirmClass + '_arrow_border"></div><div class="' + params.fastConfirmClass + '_arrow"></div>' + params.questionText + '</div>'),
                $arrow = $('div.' + params.fastConfirmClass + '_arrow', $confirmBox),
                $arrowBorder = $('div.' + params.fastConfirmClass + '_arrow_border', $confirmBox),
                confirmBoxArrowClass,
                confirmBoxArrowBorderClass,
                offset = $(trigger).offset();
            
            if (!$(trigger).data('fastconfirm_binded')) {
                // Register actions
                $confirmYes.click(function() {
                    params.onProceed(trigger);
                    $(trigger).removeData('fastconfirm_binded');
                    $(this).closest('div.' + params.fastConfirmClass).remove();
                });
                
                $confirmNo.click(function() {
                    params.onCancel(trigger);
                    $(trigger).removeData('fastconfirm_binded');
                    $(this).closest('div.' + params.fastConfirmClass).remove();
                });
                
                // Append the confirm box to the body. It will not be visible as it is off-screen by default. Positionning will be done at the last time
                $confirmBox.append($confirmYes).append($confirmNo);
                $('body').append($confirmBox);
                
                // Calculate absolute positionning depending on the trigger-relative position 
                switch (params.position) {
                    case 'top':
                        confirmBoxArrowClass = params.fastConfirmClass + '_bottom';
                        confirmBoxArrowBorderClass = params.fastConfirmClass + '_bottom';
                        
                        $arrow.addClass(confirmBoxArrowClass).css('left', $confirmBox.outerWidth()/2 - $arrow.outerWidth()/2);
                        $arrowBorder.addClass(confirmBoxArrowBorderClass).css('left', $confirmBox.outerWidth()/2 - $arrowBorder.outerWidth()/2);
                        
                        topOffset = offset.top - $confirmBox.outerHeight() - $arrowBorder.outerHeight() + params.offset.top;
                        leftOffset = offset.left - $confirmBox.outerWidth()/2 + $(trigger).outerWidth()/2 + params.offset.left;
                        break;
                    case 'right':
                        confirmBoxArrowClass = params.fastConfirmClass + '_left';
                        confirmBoxArrowBorderClass = params.fastConfirmClass + '_left';
                        
                        $arrow.addClass(confirmBoxArrowClass).css('top', $confirmBox.outerHeight()/2 - $arrow.outerHeight()/2);
                        $arrowBorder.addClass(confirmBoxArrowBorderClass).css('top', $confirmBox.outerHeight()/2 - $arrowBorder.outerHeight()/2);
                        
                        topOffset = offset.top + $(trigger).outerHeight()/2 - $confirmBox.outerHeight()/2 + params.offset.top;
                        leftOffset = offset.left + $(trigger).outerWidth() + $arrowBorder.outerWidth() + params.offset.left;
                        break;
                    case 'bottom':
                        confirmBoxArrowClass = params.fastConfirmClass + '_top';
                        confirmBoxArrowBorderClass = params.fastConfirmClass + '_top';
                        
                        $arrow.addClass(confirmBoxArrowClass).css('left', $confirmBox.outerWidth()/2 - $arrow.outerWidth()/2);
                        $arrowBorder.addClass(confirmBoxArrowBorderClass).css('left', $confirmBox.outerWidth()/2 - $arrowBorder.outerWidth()/2);
                        
                        topOffset = offset.top + $(trigger).outerHeight() + $arrowBorder.outerHeight() + params.offset.top;
                        leftOffset = offset.left - $confirmBox.outerWidth()/2 + $(trigger).outerWidth()/2 + params.offset.left;
                        break;
                    case 'left':
                        confirmBoxArrowClass = params.fastConfirmClass + '_right';
                        confirmBoxArrowBorderClass = params.fastConfirmClass + '_right';
                        
                        $arrow.addClass(confirmBoxArrowClass).css('top', $confirmBox.outerHeight()/2 - $arrow.outerHeight()/2);
                        $arrowBorder.addClass(confirmBoxArrowBorderClass).css('top', $confirmBox.outerHeight()/2 - $arrowBorder.outerHeight()/2);
                        
                        topOffset = offset.top + $(trigger).outerHeight()/2 - $confirmBox.outerHeight()/2 + params.offset.top;
                        leftOffset = offset.left - $confirmBox.outerWidth() - $arrowBorder.outerWidth() + params.offset.left;
                        break;
                }
                
                // Make the confirm box appear right where it belongs
                $confirmBox.css({
                    top: topOffset,
                    left: leftOffset
                });
                
                $(trigger).data('fastconfirm_binded', true);
            }
        });
    };

})(jQuery);