/**
* @classDescription 瓒呯骇Marquee锛屽彲鍋氬浘鐗囧鑸紝鍥剧墖杞崲
* @author Aken Li(www.kxbd.com)
* @date 2009-07-27
* @dependence jQuery 1.3.2
* @DOM
*  	<div id="marquee">
*  		<ul>
*   			<li></li>
*   			<li></li>
*  		</ul>
*  	</div>
* @CSS
*  	#marquee {width:200px;height:50px;overflow:hidden;}
* @Usage
*  	$('#marquee').kxbdSuperMarquee(options);
* @options
*		distance:200,//涓€娆℃粴鍔ㄧ殑璺濈
*		duration:20,//缂撳姩鏁堟灉锛屽崟娆＄Щ鍔ㄦ椂闂达紝瓒婂皬閫熷害瓒婂揩锛屼负0鏃舵棤缂撳姩鏁堟灉
*		time:5,//鍋滈】鏃堕棿锛屽崟浣嶄负绉�
*		direction: 'left',//婊氬姩鏂瑰悜锛�'left','right','up','down'
*		scrollAmount:1,//姝ラ暱
*		scrollDelay:20//鏃堕暱锛屽崟浣嶄负姣
*		isEqual:true,//鎵€鏈夋粴鍔ㄧ殑鍏冪礌闀垮鏄惁鐩哥瓑,true,false
*		loop: 0,//寰幆婊氬姩娆℃暟锛�舵棤闄�
*		btnGo:{left:'#goL',right:'#goR'},//鎺у埗鏂瑰悜鐨勬寜閽甀D锛屾湁鍥涗釜灞炴€eft,right,up,down鍒嗗埆瀵瑰簲鍥涗釜鏂瑰悜
*		eventGo:'click',//榧犳爣浜嬩欢
*		controlBtn:{left:'#goL',right:'#goR'},//鎺у埗鍔犻€熸粴鍔ㄧ殑鎸夐挳ID锛屾湁鍥涗釜灞炴€eft,right,up,down鍒嗗埆瀵瑰簲鍥涗釜鏂瑰悜
*		newAmount:4,//鍔犻€熸粴鍔ㄧ殑姝ラ暱
*		eventA:'mouseenter',//榧犳爣浜嬩欢锛屽姞閫�
*		eventB:'mouseleave',//榧犳爣浜嬩欢锛屽師閫�
*		navId:'#marqueeNav', //瀵艰埅瀹瑰櫒ID锛屽鑸狣OM:<ul><li>1</li><li>2</li><ul>,瀵艰埅CSS:.navOn
*		eventNav:'click' //瀵艰埅浜嬩欢
*/
(function ($) {

    $.fn.kxbdSuperMarquee = function (options) {
        var opts = $.extend({}, $.fn.kxbdSuperMarquee.defaults, options);

        return this.each(function () {
            var $marquee = $(this); //婊氬姩鍏冪礌瀹瑰櫒
            var _scrollObj = $marquee.get(0); //婊氬姩鍏冪礌瀹瑰櫒DOM
            var scrollW = $marquee.width(); //婊氬姩鍏冪礌瀹瑰櫒鐨勫搴�
            var scrollH = $marquee.height(); //婊氬姩鍏冪礌瀹瑰櫒鐨勯珮搴�
            var $element = $marquee.children(); //婊氬姩鍏冪礌
            var $kids = $element.children(); //婊氬姩瀛愬厓绱 
            var scrollSize = 0; //婊氬姩鍏冪礌灏哄
            var _type = (opts.direction == 'left' || opts.direction == 'right') ? 1 : 0; //婊氬姩绫诲瀷锛�﹀彸锛�婁笅
            var scrollId, rollId, isMove, marqueeId;
            var t, b, c, d, e; //婊氬姩鍔ㄧ敾鐨勫弬鏁�,t:褰撳墠鏃堕棿锛宐:寮€濮嬬殑浣嶇疆锛宑:鏀瑰彉鐨勪綅缃紝d:鎸佺画鐨勬椂闂达紝e:缁撴潫鐨勪綅缃�
            var _size, _len; //瀛愬厓绱犵殑灏哄涓庝釜鏁�
            var $nav, $navBtns;
            var arrPos = [];
            var numView = 0; //褰撳墠鎵€鐪嬪瓙鍏冪礌
            var numRoll = 0; //杞崲鐨勬鏁�
            var numMoved = 0; //宸茬粡绉诲姩鐨勮窛绂�

            //闃叉婊氬姩瀛愬厓绱犳瘮婊氬姩鍏冪礌瀹借€屽彇涓嶅埌瀹為檯婊氬姩瀛愬厓绱犲搴�
            $element.css(_type ? 'width' : 'height', 10000);
            //鑾峰彇婊氬姩鍏冪礌鐨勫昂瀵�
            var navHtml = '<ul>';
            if (opts.isEqual) {
                _size = $kids[_type ? 'outerWidth' : 'outerHeight']();
                _len = $kids.length;
                scrollSize = _size * _len;
                for (var i = 0; i < _len; i++) {
                    arrPos.push(i * _size);
                    navHtml += '<li>' + (i + 1) + '</li>';
                }
            } else {
                $kids.each(function (i) {
                    arrPos.push(scrollSize);
                    scrollSize += $(this)[_type ? 'outerWidth' : 'outerHeight']();
                    navHtml += '<li>' + (i + 1) + '</li>';
                });
            }
            navHtml += '</ul>';

            //婊氬姩鍏冪礌鎬诲昂瀵稿皬浜庡鍣ㄥ昂瀵革紝涓嶆粴鍔�
            if (scrollSize < (_type ? scrollW : scrollH)) return;
            //鍏嬮殕婊氬姩瀛愬厓绱犲皢鍏舵彃鍏ュ埌婊氬姩鍏冪礌鍚庯紝骞惰瀹氭粴鍔ㄥ厓绱犲搴�
            $element.append($kids.clone()).css(_type ? 'width' : 'height', scrollSize * 2);

            //杞崲瀵艰埅
            if (opts.navId) {
                $nav = $(opts.navId).append(navHtml).hover(stop, start);
                $navBtns = $('li', $nav);
                $navBtns.each(function (i) {
                    $(this).bind(opts.eventNav, function () {
                        if (isMove) return;
                        if (numView == i) return;
                        rollFunc(arrPos[i]);
                        $navBtns.eq(numView).removeClass('navOn');
                        numView = i;
                        $(this).addClass('navOn');
                    });
                });
                $navBtns.eq(numView).addClass('navOn');
            }

            //璁惧畾鍒濆浣嶇疆
            if (opts.direction == 'right' || opts.direction == 'down') {
                _scrollObj[_type ? 'scrollLeft' : 'scrollTop'] = scrollSize;
            } else {
                _scrollObj[_type ? 'scrollLeft' : 'scrollTop'] = 0;
            }

            if (opts.isMarquee) {
                //婊氬姩寮€濮�
                //marqueeId = setInterval(scrollFunc, opts.scrollDelay);
                marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
                //榧犳爣鍒掕繃鍋滄婊氬姩
                $marquee.hover(
					function () {
					    clearInterval(marqueeId);
					},
					function () {
					    //marqueeId = setInterval(scrollFunc, opts.scrollDelay);
					    clearInterval(marqueeId);
					    marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
					}
				);

                //鎺у埗鍔犻€熻繍鍔�
                if (opts.controlBtn) {
                    $.each(opts.controlBtn, function (i, val) {
                        $(val).bind(opts.eventA, function () {
                            opts.direction = i;
                            opts.oldAmount = opts.scrollAmount;
                            opts.scrollAmount = opts.newAmount;
                        }).bind(opts.eventB, function () {
                            opts.scrollAmount = opts.oldAmount;
                        });
                    });
                }
            } else {
                if (opts.isAuto) {
                    //杞崲寮€濮�
                    start();

                    //榧犳爣鍒掕繃鍋滄杞崲
                    $marquee.hover(stop, start);
                }

                //鎺у埗鍓嶅悗璧�
                if (opts.btnGo) {
                    $.each(opts.btnGo, function (i, val) {
                        $(val).bind(opts.eventGo, function () {
                            if (isMove == true) return;
                            opts.direction = i;
                            rollFunc();
                            if (opts.isAuto) {
                                stop();
                                start();
                            }
                        });
                    });
                }
            }

            function scrollFunc() {
                var _dir = (opts.direction == 'left' || opts.direction == 'right') ? 'scrollLeft' : 'scrollTop';

                if (opts.isMarquee) {
                    if (opts.loop > 0) {
                        numMoved += opts.scrollAmount;
                        if (numMoved > scrollSize * opts.loop) {
                            _scrollObj[_dir] = 0;
                            return clearInterval(marqueeId);
                        }
                    }
                    var newPos = _scrollObj[_dir] + (opts.direction == 'left' || opts.direction == 'up' ? 1 : -1) * opts.scrollAmount;
                } else {
                    if (opts.duration) {
                        if (t++ < d) {
                            isMove = true;
                            var newPos = Math.ceil(easeOutQuad(t, b, c, d));
                            if (t == d) {
                                newPos = e;
                            }
                        } else {
                            newPos = e;
                            clearInterval(scrollId);
                            isMove = false;
                            return;
                        }
                    } else {
                        var newPos = e;
                        clearInterval(scrollId);
                    }
                }

                if (opts.direction == 'left' || opts.direction == 'up') {
                    if (newPos >= scrollSize) {
                        newPos -= scrollSize;
                    }
                } else {
                    if (newPos <= 0) {
                        newPos += scrollSize;
                    }
                }
                _scrollObj[_dir] = newPos;

                if (opts.isMarquee) {
                    marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
                } else if (t < d) {
                    if (scrollId) clearTimeout(scrollId);
                    scrollId = setTimeout(scrollFunc, opts.scrollDelay);
                } else {
                    isMove = false;
                }

            };

            function rollFunc(pPos) {
                isMove = true;
                var _dir = (opts.direction == 'left' || opts.direction == 'right') ? 'scrollLeft' : 'scrollTop';
                var _neg = opts.direction == 'left' || opts.direction == 'up' ? 1 : -1;

                numRoll = numRoll + _neg;
                //寰楀埌褰撳墠鎵€鐪嬪厓绱犲簭鍙峰苟鏀瑰彉瀵艰埅CSS
                if (pPos == undefined && opts.navId) {
                    $navBtns.eq(numView).removeClass('navOn');
                    numView += _neg;
                    if (numView >= _len) {
                        numView = 0;
                    } else if (numView < 0) {
                        numView = _len - 1;
                    }
                    $navBtns.eq(numView).addClass('navOn');
                    numRoll = numView;
                }

                var _temp = numRoll < 0 ? scrollSize : 0;
                t = 0;
                b = _scrollObj[_dir];
                //c=(pPos != undefined)?pPos:_neg*opts.distance;
                e = (pPos != undefined) ? pPos : _temp + (opts.distance * numRoll) % scrollSize;
                if (_neg == 1) {
                    if (e > b) {
                        c = e - b;
                    } else {
                        c = e + scrollSize - b;
                    }
                } else {
                    if (e > b) {
                        c = e - scrollSize - b;
                    } else {
                        c = e - b;
                    }
                }
                d = opts.duration;

                //scrollId = setInterval(scrollFunc, opts.scrollDelay);
                if (scrollId) clearTimeout(scrollId);
                scrollId = setTimeout(scrollFunc, opts.scrollDelay);
            }

            function start() {
                rollId = setInterval(function () {
                    rollFunc();
                }, opts.time * 1000);
            }
            function stop() {
                clearInterval(rollId);
            }

            function easeOutQuad(t, b, c, d) {
                return -c * (t /= d) * (t - 2) + b;
            }

            function easeOutQuint(t, b, c, d) {
                return c * ((t = t / d - 1) * t * t * t * t + 1) + b;
            }

        });
    };
    $.fn.kxbdSuperMarquee.defaults = {
        isMarquee: false, //鏄惁涓篗arquee
        isEqual: true, //鎵€鏈夋粴鍔ㄧ殑鍏冪礌闀垮鏄惁鐩哥瓑,true,false
        loop: 0, //寰幆婊氬姩娆℃暟锛�舵棤闄�
        newAmount: 3, //鍔犻€熸粴鍔ㄧ殑姝ラ暱
        eventA: 'mousedown', //榧犳爣浜嬩欢锛屽姞閫�
        eventB: 'mouseup', //榧犳爣浜嬩欢锛屽師閫�
        isAuto: true, //鏄惁鑷姩杞崲
        time: 5, //鍋滈】鏃堕棿锛屽崟浣嶄负绉�
        duration: 50, //缂撳姩鏁堟灉锛屽崟娆＄Щ鍔ㄦ椂闂达紝瓒婂皬閫熷害瓒婂揩锛屼负0鏃舵棤缂撳姩鏁堟灉
        eventGo: 'click', //榧犳爣浜嬩欢锛屽悜鍓嶅悜鍚庤蛋
        direction: 'left', //婊氬姩鏂瑰悜锛�'left','right','up','down'
        scrollAmount: 1, //姝ラ暱
        scrollDelay: 10, //鏃堕暱
        eventNav: 'click'//瀵艰埅浜嬩欢
    };

    $.fn.kxbdSuperMarquee.setDefaults = function (settings) {
        $.extend($.fn.kxbdSuperMarquee.defaults, settings);
    };

})(jQuery);