minirefresh.js 56 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478
/*!
 * minirefresh v2.0.2
 * (c) 2017-2018 dailc
 * Released under the MIT License.
 * https://github.com/minirefresh/minirefresh
 */

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global.MiniRefreshTools = factory());
}(this, (function () { 'use strict';

function getNow() {
    return window.performance && (window.performance.now ? window.performance.now() + window.performance.timing.navigationStart : +new Date());
}

var noop = function noop() {};

function isArray(object) {
    if (Array.isArray) {
        return Array.isArray(object);
    }

    return object instanceof Array;
}

function isObject(object) {
    var classType = Object.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1];

    return classType !== 'String' && classType !== 'Number' && classType !== 'Boolean' && classType !== 'Undefined' && classType !== 'Null';
}

function isWindow(object) {
    return object && object === window;
}

function isPlainObject(obj) {
    return isObject(obj) && !isWindow(obj)
    // 如果不是普通的object,Object.prototype需要通过链回溯才能得到
    && Object.getPrototypeOf(obj) === Object.prototype;
}

function extend() {
    var _arguments = arguments;

    var len = arguments.length;
    var target = (arguments.length <= 0 ? undefined : arguments[0]) || {};
    var sourceIndex = 1;
    var isDeep = false;

    if (typeof target === 'boolean') {
        // 深赋值或false
        isDeep = target;
        target = (arguments.length <= sourceIndex ? undefined : arguments[sourceIndex]) || {};
        sourceIndex++;
    }

    if (!isObject(target)) {
        // 确保拓展的一定是object
        target = {};
    }

    var _loop = function _loop() {
        // source的拓展
        var source = _arguments.length <= sourceIndex ? undefined : _arguments[sourceIndex];

        if (source && isObject(source)) {
            // for-of打包过大
            Object.keys(source).forEach(function (name) {
                var src = target[name];
                var copy = source[name];
                var copyIsPlainObject = isPlainObject(copy);
                var copyIsArray = isArray(copy);
                var clone = void 0;

                if (target === copy) {
                    // 防止环形引用
                    return;
                }

                if (isDeep && copy && (copyIsArray || copyIsPlainObject)) {
                    // 这里必须用isPlainObject,只有同样是普通的object才会复制继承
                    // 如果是FormData之流的,会走后面的覆盖路线
                    if (copyIsArray) {
                        copyIsArray = false;
                        clone = src && isArray(src) ? src : [];
                    } else {
                        clone = src && isPlainObject(src) ? src : {};
                    }

                    target[name] = extend(isDeep, clone, copy);
                } else if (copy !== undefined) {
                    // 如果非深赋值
                    // 或者不是普通的object,直接覆盖,例如FormData之类的也会覆盖
                    target[name] = copy;
                }
            });
        }
    };

    for (; sourceIndex < len; sourceIndex++) {
        _loop();
    }

    return target;
}

/**
 * 选择这段代码用到的太多了,因此抽取封装出来
 * @param {Object} element dom元素或者selector
 * @return {HTMLElement} 返回选择的Dom对象,无果没有符合要求的,则返回null
 */
function selector(element) {
    var target = element;

    if (typeof target === 'string') {
        target = document.querySelector(target);
    }

    return target;
}

/**
 * 获取DOM的可视区高度,兼容PC上的body高度获取
 * 因为在通过body获取时,在PC上会有CSS1Compat形式,所以需要兼容
 * @param {HTMLElement} dom 需要获取可视区高度的dom,对body对象有特殊的兼容方案
 * @return {Number} 返回最终的高度
 */
function getClientHeightByDom(dom) {
    var height = dom.clientHeight;

    if (dom === document.body && document.compatMode === 'CSS1Compat') {
        // PC上body的可视区的特殊处理
        height = document.documentElement.clientHeight;
    }

    return height;
}

/**
 * 设置一个Util对象下的命名空间
 * @param {Object} parent 需要绑定到哪一个对象上
 * @param {String} namespace 需要绑定的命名空间名
 * @param {Object} target 需要绑定的目标对象
 * @return {Object} 返回最终的对象
 */
function namespace(parent, namespaceStr, target) {
    if (!namespaceStr) {
        return parent;
    }

    var namespaceArr = namespaceStr.split('.');
    var len = namespaceArr.length;
    var res = parent;

    for (var i = 0; i < len - 1; i += 1) {
        var tmp = namespaceArr[i];

        // 不存在的话要重新创建对象
        res[tmp] = res[tmp] || {};
        // parent要向下一级
        res = res[tmp];
    }
    res[namespaceArr[len - 1]] = target;

    return target;
}

var lang = Object.freeze({
	getNow: getNow,
	noop: noop,
	isArray: isArray,
	isObject: isObject,
	isWindow: isWindow,
	isPlainObject: isPlainObject,
	extend: extend,
	selector: selector,
	getClientHeightByDom: getClientHeightByDom,
	namespace: namespace
});

/**
 * 加入系统判断功能
 */
function osMixin(hybrid) {
    var hybridJs = hybrid;
    var detect = function detect(ua) {
        this.os = {};

        var android = ua.match(/(Android);?[\s/]+([\d.]+)?/);

        if (android) {
            this.os.android = true;
            this.os.version = android[2];
            this.os.isBadAndroid = !/Chrome\/\d/.test(window.navigator.appVersion);
        }

        var iphone = ua.match(/(iPhone\sOS)\s([\d_]+)/);

        if (iphone) {
            this.os.ios = true;
            this.os.iphone = true;
            this.os.version = iphone[2].replace(/_/g, '.');
        }

        var ipad = ua.match(/(iPad).*OS\s([\d_]+)/);

        if (ipad) {
            this.os.ios = true;
            this.os.ipad = true;
            this.os.version = ipad[2].replace(/_/g, '.');
        }

        // quickhybrid的容器
        var quick = ua.match(/QuickHybrid/i);

        if (quick) {
            this.os.quick = true;
        }

        // epoint的容器
        var ejs = ua.match(/EpointEJS/i);

        if (ejs) {
            this.os.ejs = true;
        }

        var dd = ua.match(/DingTalk/i);

        if (dd) {
            this.os.dd = true;
        }

        // 如果ejs和钉钉以及quick都不是,则默认为h5
        if (!ejs && !dd && !quick) {
            this.os.h5 = true;
        }
    };

    detect.call(hybridJs, navigator.userAgent);
}

var DEFAULT_INTERVAL = 1000 / 60;

// 立即执行
var requestAnimationFrame = function () {
    return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame
    // if all else fails, use setTimeout
    || function requestAnimationFrameTimeOut(callback) {
        // make interval as precise as possible.
        return window.setTimeout(callback, (callback.interval || DEFAULT_INTERVAL) / 2);
    };
}();

var _createClass$1 = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck$1(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * 一些事件
 */
var EVENT_INIT = 'initScroll';
var EVENT_SCROLL = 'scroll';
var EVENT_PULL = 'pull';
var EVENT_UP_LOADING = 'upLoading';
var EVENT_RESET_UP_LOADING = 'resetUpLoading';
var EVENT_DOWN_LOADING = 'downLoading';
var EVENT_CANCEL_LOADING = 'cancelLoading';

/**
 * 一些hook
 * hook是指挥它会影响逻辑
 */
var HOOK_BEFORE_DOWN_LOADING = 'beforeDownLoading';

var PER_SECOND = 1000 / 60;

/**
 * 滑动操作相关类
 * 把一些滑动滚动逻辑单独剥离出来
 * 确保Core中只有纯粹的API定义
 */

var Scroll = function () {
    /**
     * 传入minirefresh对象,因为内部一些配置项依赖于minirefresh
     * @param {Object} options 配置信息
     * @constructor
     */
    function Scroll(minirefresh) {
        _classCallCheck$1(this, Scroll);

        this.contentWrap = minirefresh.contentWrap;
        this.scrollWrap = minirefresh.scrollWrap;
        this.options = minirefresh.options;
        this.os = minirefresh.os;
        // 默认没有事件,需要主动绑定
        this.events = {};
        // 默认没有hook
        this.hooks = {};

        // 使用了scrollto后加锁,防止重复
        this.isScrollTo = false;
        // 上拉和下拉的状态
        this.upLoading = false;
        this.downLoading = false;
        // 默认up是没有finish的
        this.isFinishUp = false;

        this._init();
    }

    _createClass$1(Scroll, [{
        key: '_init',
        value: function _init() {
            var _this = this;

            this._initPullDown();
            this._initPullUp();

            setTimeout(function () {
                if (_this.options.down && _this.options.down.isAuto && !_this.options.down.isLock) {
                    // 满足自动下拉,需要判断是否需要动画(仅仅是首次)
                    if (_this.options.down.isAllowAutoLoading) {
                        _this.triggerDownLoading();
                    } else {
                        _this.events[EVENT_DOWN_LOADING] && _this.events[EVENT_DOWN_LOADING](true);
                    }
                } else if (_this.options.up && _this.options.up.isAuto && !_this.options.up.isLock) {
                    // 满足上拉,上拉的配置由配置项决定(每一次)
                    _this.triggerUpLoading();
                }

                _this.events[EVENT_INIT] && _this.events[EVENT_INIT]();
            });
        }
    }, {
        key: 'refreshOptions',
        value: function refreshOptions(options) {
            this.options = options;
        }

        /**
         * ContentWrap的translate动画,用于下拉刷新时进行transform动画
         * @param {Number} y 移动的高度
         * @param {Number} duration 过渡时间
         */

    }, {
        key: 'translateContentWrap',
        value: function translateContentWrap(y, duration) {
            var translateY = y || 0;
            var translateDuration = duration || 0;

            // 改变downHight, 这个参数关乎逻辑
            this.downHight = translateY;

            if (!this.options.down.isScrollCssTranslate) {
                // 只有允许动画时才会scroll也translate,否则只会改变downHeight
                return;
            }

            // 改变wrap的位置(css动画)
            var wrap = this.contentWrap;

            wrap.style.webkitTransitionDuration = translateDuration + 'ms';
            wrap.style.transitionDuration = translateDuration + 'ms';
            wrap.style.webkitTransform = 'translate(0px, ' + translateY + 'px) translateZ(0px)';
            wrap.style.transform = 'translate(0px, ' + translateY + 'px) translateZ(0px)';
        }
    }, {
        key: '_scrollWrapAnimation',
        value: function _scrollWrapAnimation() {
            this.scrollWrap.webkitTransitionTimingFunction = 'cubic-bezier(0.1, 0.57, 0.1, 1)';
            this.scrollWrap.transitionTimingFunction = 'cubic-bezier(0.1, 0.57, 0.1, 1)';
        }
    }, {
        key: '_initPullDown',
        value: function _initPullDown() {
            var _this2 = this;

            // 考虑到options可以更新,所以不能被缓存,而是应该在回调中直接获取
            var scrollWrap = this.scrollWrap;
            var docClientHeight = document.documentElement.clientHeight;

            this._scrollWrapAnimation();

            // 触摸开始
            var touchstartEvent = function touchstartEvent(e) {
                if (_this2.isScrollTo) {
                    // 如果执行滑动事件,则阻止touch事件,优先执行scrollTo方法
                    e.preventDefault();
                }
                // 记录startTop, 并且只有startTop存在值时才允许move
                _this2.startTop = scrollWrap.scrollTop;

                // startY用来计算距离
                _this2.startY = e.touches ? e.touches[0].pageY : e.clientY;
                // X的作用是用来计算方向,如果是横向,则不进行动画处理,避免误操作
                _this2.startX = e.touches ? e.touches[0].pageX : e.clientX;
            };

            scrollWrap.addEventListener('touchstart', touchstartEvent);
            scrollWrap.addEventListener('mousedown', touchstartEvent);

            // 触摸结束
            var touchendEvent = function touchendEvent() {
                var options = _this2.options;

                // 需要重置状态
                if (_this2.isMoveDown) {
                    // 如果下拉区域已经执行动画,则需重置回来
                    if (_this2.downHight >= options.down.offset) {
                        // 符合触发刷新的条件
                        _this2.triggerDownLoading();
                    } else {
                        // 否则默认重置位置
                        _this2.translateContentWrap(0, options.down.bounceTime);
                        _this2.events[EVENT_CANCEL_LOADING] && _this2.events[EVENT_CANCEL_LOADING]();
                    }

                    _this2.isMoveDown = false;
                }

                _this2.startY = 0;
                _this2.startX = 0;
                _this2.preY = 0;
                _this2.startTop = undefined;
                // 当前是否正处于回弹中,常用于iOS中判断,如果先上拉再下拉就处于回弹中(只要moveY为负)
                _this2.isBounce = false;
            };

            scrollWrap.addEventListener('touchend', touchendEvent);
            scrollWrap.addEventListener('mouseup', touchendEvent);
            scrollWrap.addEventListener('mouseleave', touchendEvent);

            // 触摸中
            var touchmoveEvent = function touchmoveEvent(e) {
                var options = _this2.options;
                var isAllowDownloading = true;

                if (_this2.downLoading) {
                    isAllowDownloading = false;
                } else if (!options.down.isAways && _this2.upLoading) {
                    isAllowDownloading = false;
                }

                if (_this2.startTop !== undefined && _this2.startTop <= 0 && isAllowDownloading && !_this2.options.down.isLock) {
                    // 列表在顶部且不在加载中,并且没有锁住下拉动画

                    // 当前第一个手指距离列表顶部的距离
                    var curY = e.touches ? e.touches[0].pageY : e.clientY;
                    var curX = e.touches ? e.touches[0].pageX : e.clientX;

                    // 手指滑出屏幕触发刷新
                    if (curY > docClientHeight) {
                        touchendEvent(e);

                        return;
                    }

                    if (!_this2.preY) {
                        // 设置上次移动的距离,作用是用来计算滑动方向
                        _this2.preY = curY;
                    }

                    // 和上次比,移动的距离 (大于0向下,小于0向上)
                    var diff = curY - _this2.preY;

                    _this2.preY = curY;

                    // 和起点比,移动的距离,大于0向下拉
                    var moveY = curY - _this2.startY;
                    var moveX = curX - _this2.startX;

                    // 如果锁定横向滑动并且横向滑动更多,阻止默认事件
                    if (options.isLockX && Math.abs(moveX) > Math.abs(moveY)) {
                        e.preventDefault();

                        return;
                    }

                    if (_this2.isBounce && _this2.os.ios) {
                        // 暂时iOS中去回弹
                        // 下一个版本中,分开成两种情况,一种是absolute的固定动画,一种是在scrollWrap内部跟随滚动的动画
                        return;
                    }

                    if (moveY > 0) {
                        // 向下拉
                        _this2.isMoveDown = true;

                        // 阻止浏览器的默认滚动事件,因为这时候只需要执行动画即可
                        e.preventDefault();

                        if (!_this2.downHight) {
                            // 下拉区域的高度,用translate动画
                            _this2.downHight = 0;
                        }

                        var downOffset = options.down.offset;
                        var dampRate = 1;

                        if (_this2.downHight < downOffset) {
                            // 下拉距离  < 指定距离
                            dampRate = options.down.dampRateBegin;
                        } else {
                            // 超出了指定距离,随时可以刷新
                            dampRate = options.down.dampRate;
                        }

                        if (diff > 0) {
                            // 需要加上阻尼系数
                            _this2.downHight += diff * dampRate;
                        } else {
                            // 向上收回高度,则向上滑多少收多少高度
                            _this2.downHight += diff;
                        }

                        _this2.events[EVENT_PULL] && _this2.events[EVENT_PULL](_this2.downHight, downOffset);

                        // 执行动画
                        _this2.translateContentWrap(_this2.downHight);
                    } else {
                        _this2.isBounce = true;
                        // 解决嵌套问题。在嵌套有 IScroll,或类似的组件时,这段代码会生效,可以辅助滚动scrolltop
                        // 否则有可能在最开始滚不动
                        if (scrollWrap.scrollTop <= 0) {
                            scrollWrap.scrollTop += Math.abs(diff);
                        }
                    }
                }
            };

            scrollWrap.addEventListener('touchmove', touchmoveEvent);
            scrollWrap.addEventListener('mousemove', touchmoveEvent);
        }
    }, {
        key: '_initPullUp',
        value: function _initPullUp() {
            var _this3 = this;

            var scrollWrap = this.scrollWrap;

            // 如果是Body上的滑动,需要监听window的scroll
            var targetScrollDom = scrollWrap === document.body ? window : scrollWrap;

            targetScrollDom.addEventListener('scroll', function () {
                var scrollTop = scrollWrap.scrollTop;
                var scrollHeight = scrollWrap.scrollHeight;
                var clientHeight = getClientHeightByDom(scrollWrap);
                var options = _this3.options;

                _this3.events[EVENT_SCROLL] && _this3.events[EVENT_SCROLL](scrollTop);

                var isAllowUploading = true;

                if (_this3.upLoading) {
                    isAllowUploading = false;
                } else if (!options.down.isAways && _this3.downLoading) {
                    isAllowUploading = false;
                }

                if (isAllowUploading) {
                    if (!_this3.options.up.isLock && !_this3.isFinishUp && scrollHeight > 0) {
                        var toBottom = scrollHeight - clientHeight - scrollTop;

                        if (toBottom <= options.up.offset) {
                            // 满足上拉加载
                            _this3.triggerUpLoading();
                        }
                    }
                }
            });
        }
    }, {
        key: '_loadFull',
        value: function _loadFull() {
            var _this4 = this;

            var scrollWrap = this.scrollWrap;
            var options = this.options;

            setTimeout(function () {
                // 在下一个循环中运行
                if (!_this4.options.up.isLock && options.up.loadFull.isEnable
                // 避免无法计算高度时无限加载
                && scrollWrap.scrollTop === 0
                // scrollHeight是网页内容高度(最小值是clientHeight)
                && scrollWrap.scrollHeight > 0 && scrollWrap.scrollHeight <= getClientHeightByDom(scrollWrap)) {
                    _this4.triggerUpLoading();
                }
            }, options.up.loadFull.delay || 0);
        }
    }, {
        key: 'triggerDownLoading',
        value: function triggerDownLoading() {
            var options = this.options;

            if (!this.hooks[HOOK_BEFORE_DOWN_LOADING] || this.hooks[HOOK_BEFORE_DOWN_LOADING](this.downHight, options.down.offset)) {
                // 没有hook或者hook返回true都通过,主要是为了方便类似于秘密花园等的自定义下拉刷新动画实现
                this.downLoading = true;
                this.translateContentWrap(options.down.offset, options.down.bounceTime);

                this.events[EVENT_DOWN_LOADING] && this.events[EVENT_DOWN_LOADING]();
            }
        }
    }, {
        key: 'endDownLoading',
        value: function endDownLoading() {
            var options = this.options;

            if (this.downLoading) {
                // 必须是loading时才允许结束
                this.translateContentWrap(0, options.down.bounceTime);
                this.downLoading = false;
            }
        }
    }, {
        key: 'triggerUpLoading',
        value: function triggerUpLoading() {
            this.upLoading = true;
            this.events[EVENT_UP_LOADING] && this.events[EVENT_UP_LOADING]();
        }

        /**
         * 结束上拉加载动画时需要判断是否已经finished(不能加载更多,没有数据了)
         * @param {Boolean} isFinishUp 是否结束上拉加载
         */

    }, {
        key: 'endUpLoading',
        value: function endUpLoading(isFinishUp) {
            if (this.upLoading) {
                this.upLoading = false;

                if (isFinishUp) {
                    this.isFinishUp = true;
                } else {
                    this._loadFull();
                }
            }
        }
    }, {
        key: 'resetUpLoading',
        value: function resetUpLoading() {
            if (this.isFinishUp) {
                this.isFinishUp = false;
            }

            // 检测是否需要加载满屏
            this._loadFull();

            this.events[EVENT_RESET_UP_LOADING] && this.events[EVENT_RESET_UP_LOADING]();
        }

        /**
         * 滚动到指定的y位置
         * @param {Number} y top坐标
         * @param {Number} duration 单位毫秒
         */

    }, {
        key: 'scrollTo',
        value: function scrollTo(y, duration) {
            var _this5 = this;

            var scrollWrap = this.scrollWrap;
            var translateDuration = duration || 0;
            // 最大可滚动的y
            var maxY = scrollWrap.scrollHeight - getClientHeightByDom(scrollWrap);
            var translateY = y || 0;

            translateY = Math.max(translateY, 0);
            translateY = Math.min(translateY, maxY);

            // 差值 (可能为负)
            var diff = scrollWrap.scrollTop - translateY;

            if (diff === 0 || translateDuration === 0) {
                scrollWrap.scrollTop = translateY;

                return;
            }

            // 每秒60帧,计算一共多少帧,然后每帧的步长
            var count = Math.floor(translateDuration / PER_SECOND);
            var step = diff / count;
            var curr = 0;

            var execute = function execute() {
                if (curr < count) {
                    if (curr === count - 1) {
                        // 最后一次直接设置y,避免计算误差
                        scrollWrap.scrollTop = translateY;
                    } else {
                        scrollWrap.scrollTop -= step;
                    }
                    curr += 1;
                    requestAnimationFrame(execute);
                } else {
                    scrollWrap.scrollTop = translateY;
                    _this5.isScrollTo = false;
                }
            };

            // 锁定状态
            this.isScrollTo = true;
            requestAnimationFrame(execute);
        }

        /**
         * 监听事件,包括下拉过程,下拉刷新,上拉加载,滑动等事件都可以监听到
         * @param {String} event 事件名,可选名称
         * 在最上方的常量有定义
         * @param {Function} callback 回调函数
         */

    }, {
        key: 'on',
        value: function on(event, callback) {
            if (event && typeof callback === 'function') {
                this.events[event] = callback;
            }
        }

        /**
         * 注册钩子函数,主要是一些自定义刷新动画时用到,如进入秘密花园
         * @param {String} hook 名称,范围如下
         * beforeDownLoading 是否准备downLoading,如果返回false,则不会loading,完全进入自定义动画
         * @param {Function} callback 回调函数
         */

    }, {
        key: 'hook',
        value: function hook(_hook, callback) {
            if (_hook && typeof callback === 'function') {
                this.hooks[_hook] = callback;
            }
        }
    }]);

    return Scroll;
}();

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var defaultSetting = {
    // 下拉有关
    down: {
        // 默认没有锁定,可以通过API动态设置
        isLock: false,
        // 是否自动下拉刷新
        isAuto: false,
        // 设置isAuto=true时生效,是否在初始化的下拉刷新触发事件中显示动画,如果是false,初始化的加载只会触发回调,不会触发动画
        isAllowAutoLoading: true,
        // 是否不管任何情况下都能触发下拉刷新,为false的话当上拉时不会触发下拉
        isAways: false,
        // 是否scroll在下拉时会进行移动(css3),通过关闭它可以实现自定义动画
        isScrollCssTranslate: true,
        // 是否每次下拉完毕后默认重置上拉
        isAutoResetUpLoading: true,
        // 下拉要大于多少长度后再下拉刷新
        offset: 75,
        // 阻尼系数,下拉小于offset时的阻尼系数,值越接近0,高度变化越小,表现为越往下越难拉
        dampRateBegin: 1,
        // 阻尼系数,下拉的距离大于offset时,改变下拉区域高度比例;值越接近0,高度变化越小,表现为越往下越难拉
        dampRate: 0.3,
        // 回弹动画时间
        bounceTime: 300,
        successAnim: {
            // 下拉刷新结束后是否有成功动画,默认为false,如果想要有成功刷新xxx条数据这种操作,请设为true,并实现对应hook函数
            isEnable: false,
            duration: 300
        },
        // 下拉时会提供回调,默认为null不会执行
        onPull: null,
        // 取消时回调
        onCalcel: null,
        callback: noop
    },
    // 上拉有关
    up: {
        // 默认没有锁定,可以通过API动态设置
        isLock: false,
        // 是否自动上拉加载-初始化是是否自动
        isAuto: true,
        // 是否默认显示上拉进度条,可以通过API改变
        isShowUpLoading: true,
        // 距离底部高度(到达该高度即触发)
        offset: 100,
        loadFull: {
            // 开启配置后,只要没满屏幕,就会自动加载
            isEnable: true,
            delay: 300
        },
        // 滚动时会提供回调,默认为null不会执行
        onScroll: null,
        callback: noop
    },
    // 容器
    container: '#minirefresh',
    // 是否锁定横向滑动,如果锁定则原生滚动条无法滑动
    isLockX: true,
    // 是否显示滚动条
    isScrollBar: true,
    // 是否使用body对象的scroll而不是minirefresh-scroll对象的scroll
    // 开启后一个页面只能有一个下拉刷新,否则会有冲突
    isUseBodyScroll: false
};

var CLASS_HIDDEN_SCROLLBAR = 'minirefresh-hide-scrollbar';

var Core = function () {
    /**
     * 构造函数
     * @param {Object} options 配置信息
     * @constructor
     */
    function Core(options) {
        _classCallCheck(this, Core);

        osMixin(this);
        this.options = extend(true, {}, defaultSetting, options);

        this.container = selector(this.options.container);
        // scroll的dom-wrapper下的第一个节点,作用是down动画时的操作
        this.contentWrap = this.container.children[0];
        // 默认是整个container进行滚动
        // 但是为了兼容body的滚动,拆分为两个对象方便处理
        // 如果是使用body的情况,scrollWrap恒为body
        // 注意,滑动不是指下拉时的translate(这时候时contentWrap),而是只默认的原生滑动
        this.scrollWrap = this.options.isUseBodyScroll ? document.body : this.container;

        if (!this.options.isScrollBar) {
            this.container.classList.add(CLASS_HIDDEN_SCROLLBAR);
        }

        // 初始化的hook
        this._initHook && this._initHook(this.options.down.isLock, this.options.up.isLock);

        // 生成一个Scroll对象 ,对象内部处理滑动监听
        this.scroller = new Scroll(this);

        // 内部处理scroll
        this._initEvent();
        // 如果初始化时锁定了,需要触发锁定,避免没有锁定时解锁(会触发逻辑bug)
        this.options.up.isLock && this._lockUpLoading(this.options.up.isLock);
        this.options.down.isLock && this._lockDownLoading(this.options.down.isLock);
    }

    _createClass(Core, [{
        key: '_initEvent',
        value: function _initEvent() {
            var _this = this;

            // 缓存options,这部分的配置是不允许reset的
            var options = this.options;

            this.scroller.on('initScroll', function () {
                _this._initScrollHook && _this._initScrollHook();
            });
            this.scroller.on('downLoading', function (isHideLoading) {
                !isHideLoading && _this._downLoaingHook && _this._downLoaingHook();
                options.down.callback && options.down.callback();
            });
            this.scroller.on('cancelLoading', function () {
                _this._cancelLoaingHook && _this._cancelLoaingHook();
                options.down.onCalcel && options.down.onCalcel();
            });
            this.scroller.on('pull', function (downHight, downOffset) {
                _this._pullHook && _this._pullHook(downHight, downOffset);
                options.down.onPull && options.down.onPull(downHight, downOffset);
            });
            this.scroller.on('upLoading', function () {
                _this._upLoaingHook && _this._upLoaingHook(_this.options.up.isShowUpLoading);
                options.up.callback && options.up.callback(_this.options.up.isShowUpLoading);
            });
            this.scroller.on('resetUpLoading', function () {
                _this._resetUpLoadingHook && _this._resetUpLoadingHook();
            });
            this.scroller.on('scroll', function (scrollTop) {
                _this._scrollHook && _this._scrollHook(scrollTop);
                options.up.onScroll && options.up.onScroll(scrollTop);
            });

            // 检查是否允许普通的加载中,如果返回false,就代表自定义下拉刷新,通常自己处理
            this.scroller.hook('beforeDownLoading', function (downHight, downOffset) {
                return !_this._beforeDownLoadingHook || _this._beforeDownLoadingHook(downHight, downOffset);
            });
        }

        /**
         * 内部执行,结束下拉刷新
         * @param {Boolean} isSuccess 是否下拉请求成功
         * @param {String} successTips 需要更新的成功提示
         * 在开启了成功动画时,往往成功的提示是需要由外传入动态更新的,譬如  update 10 news
         */

    }, {
        key: '_endDownLoading',
        value: function _endDownLoading(isSuccess, successTips) {
            var _this2 = this;

            if (!this.options.down) {
                // 防止没传down导致错误
                return;
            }

            if (this.scroller.downLoading) {
                // 必须是loading时才允许执行对应hook
                var successAnim = this.options.down.successAnim.isEnable;
                var successAnimTime = this.options.down.successAnim.duration;

                if (successAnim) {
                    // 如果有成功动画
                    this._downLoaingSuccessHook && this._downLoaingSuccessHook(isSuccess, successTips);
                } else {
                    // 默认为没有成功动画
                    successAnimTime = 0;
                }

                setTimeout(function () {
                    // 成功动画结束后就可以重置位置了
                    _this2.scroller.endDownLoading();
                    // 触发结束hook
                    _this2._downLoaingEndHook && _this2._downLoaingEndHook(isSuccess);
                }, successAnimTime);
            }
        }

        /**
         * 锁定上拉加载
         * 将开启和禁止合并成一个锁定API
         * @param {Boolean} isLock 是否锁定
         */

    }, {
        key: '_lockUpLoading',
        value: function _lockUpLoading(isLock) {
            this.options.up.isLock = isLock;
            this._lockUpLoadingHook && this._lockUpLoadingHook(isLock);
        }

        /**
         * 锁定下拉刷新
         * @param {Boolean} isLock 是否锁定
         */

    }, {
        key: '_lockDownLoading',
        value: function _lockDownLoading(isLock) {
            this.options.down.isLock = isLock;
            this._lockDownLoadingHook && this._lockDownLoadingHook(isLock);
        }

        /**
         * 刷新minirefresh的配置,关键性的配置请不要更新,如容器,回调等
         * @param {Object} options 新的配置,会覆盖原有的
         */

    }, {
        key: 'refreshOptions',
        value: function refreshOptions(options) {
            this.options = extend(true, {}, this.options, options);
            this.scroller.refreshOptions(this.options);
            this._lockUpLoading(this.options.up.isLock);
            this._lockDownLoading(this.options.down.isLock);
            this._refreshHook && this._refreshHook();
        }

        /**
         * 结束下拉刷新
         * @param {Boolean} isSuccess 是否请求成功,这个状态会中转给对应主题
         * @param {String} successTips 需要更新的成功提示
         * 在开启了成功动画时,往往成功的提示是需要由外传入动态更新的,譬如  update 10 news
         */

    }, {
        key: 'endDownLoading',
        value: function endDownLoading() {
            var isSuccess = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
            var successTips = arguments[1];

            this._endDownLoading(isSuccess, successTips);
            // 同时恢复上拉加载的状态,注意,此时没有传isShowUpLoading,所以这个值不会生效
            if (this.options.down.isAutoResetUpLoading) {
                this.resetUpLoading();
            }
        }

        /**
         * 重置上拉加载状态,如果是没有更多数据后重置,会变为可以继续上拉加载
         */

    }, {
        key: 'resetUpLoading',
        value: function resetUpLoading() {
            this.scroller.resetUpLoading();
        }

        /**
         * 结束上拉加载
         * @param {Boolean} isFinishUp 是否结束上拉加载,如果结束,就相当于变为了没有更多数据,无法再出发上拉加载了
         * 结束后必须reset才能重新开启
         */

    }, {
        key: 'endUpLoading',
        value: function endUpLoading(isFinishUp) {
            if (this.scroller.upLoading) {
                this.scroller.endUpLoading(isFinishUp);
                this._upLoaingEndHook && this._upLoaingEndHook(isFinishUp);
            }
        }
    }, {
        key: 'triggerUpLoading',
        value: function triggerUpLoading() {
            this.scroller.triggerUpLoading();
        }
    }, {
        key: 'triggerDownLoading',
        value: function triggerDownLoading() {
            this.scroller.scrollTo(0);
            this.scroller.triggerDownLoading();
        }

        /**
         * 滚动到指定的y位置
         * @param {Number} y 需要滑动到的top值
         * @param {Number} duration 单位毫秒
         */

    }, {
        key: 'scrollTo',
        value: function scrollTo(y, duration) {
            this.scroller.scrollTo(y, duration);
        }

        /**
         * 获取当前的滚动位置
         * @return {Number} 返回当前的滚动位置
         */

    }, {
        key: 'getPosition',
        value: function getPosition() {
            return this.scrollWrap.scrollTop;
        }
    }]);

    return Core;
}();

var MiniRefreshTools$2 = {};

Object.keys(lang).forEach(function (name) {
    MiniRefreshTools$2[name] = lang[name];
});

// namespace的特殊把绑定
MiniRefreshTools$2.namespace = function (namespaceStr, target) {
    namespace(MiniRefreshTools$2, namespaceStr, target);
};

MiniRefreshTools$2.Core = Core;
MiniRefreshTools$2.version = '2.0.0';

// 防止主题和核心一起,并且require模式中,无法全局变量的情况
window.MiniRefreshTools = MiniRefreshTools$2;

var _createClass$2 = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck$2(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Core$2 = MiniRefreshTools.Core;
var version = MiniRefreshTools.version;
var extend$1 = MiniRefreshTools.extend;
var namespace$1 = MiniRefreshTools.namespace;

/**
 * 一些默认提供的CSS类,一般来说不会变动(由框架提供的)
 * THEME 字段会根据不同的主题有不同值
 * 在使用body的scroll时,需要加上样式 CLASS_BODY_SCROLL_WRAP
 */
var CLASS_THEME = 'minirefresh-theme-default';
var CLASS_DOWN_WRAP = 'minirefresh-downwrap';
var CLASS_UP_WRAP = 'minirefresh-upwrap';
var CLASS_FADE_IN = 'minirefresh-fade-in';
var CLASS_FADE_OUT = 'minirefresh-fade-out';
var CLASS_TO_TOP = 'minirefresh-totop';
var CLASS_ROTATE = 'minirefresh-rotate';
var CLASS_HARDWARE_SPEEDUP = 'minirefresh-hardware-speedup';
var CLASS_HIDDEN = 'minirefresh-hidden';
var CLASS_BODY_SCROLL_WRAP = 'body-scroll-wrap';

/**
 * 本主题的特色样式
 */
var CLASS_DOWN_SUCCESS = 'downwrap-success';
var CLASS_DOWN_ERROR = 'downwrap-error';
var CLASS_STATUS_DEFAULT = 'status-default';
var CLASS_STATUS_PULL = 'status-pull';
var CLASS_STATUS_LOADING = 'status-loading';
var CLASS_STATUS_SUCCESS = 'status-success';
var CLASS_STATUS_ERROR = 'status-error';
var CLASS_STATUS_NOMORE = 'status-nomore';

/**
 * 一些常量
 */
var DEFAULT_DOWN_HEIGHT = 75;

var defaultSetting$1 = {
    down: {
        successAnim: {
            // 下拉刷新结束后是否有成功动画,默认为false,如果想要有成功刷新xxx条数据这种操作,请设为true,并实现对应hook函数
            isEnable: false,
            duration: 300
        },
        // 可选,在下拉可刷新状态时,下拉刷新控件上显示的标题内容
        contentdown: '下拉刷新',
        // 可选,在释放可刷新状态时,下拉刷新控件上显示的标题内容
        contentover: '释放刷新',
        // 可选,正在刷新状态时,下拉刷新控件上显示的标题内容
        contentrefresh: '加载中...',
        // 可选,刷新成功的提示,当开启successAnim时才有效
        contentsuccess: '刷新成功',
        // 可选,刷新失败的提示,错误回调用到,当开启successAnim时才有效
        contenterror: '刷新失败',
        // 是否默认跟随进行css动画
        isWrapCssTranslate: false
    },
    up: {
        toTop: {
            // 是否开启点击回到顶部
            isEnable: true,
            duration: 300,
            // 滚动多少距离才显示toTop
            offset: 800
        },
        // 默认为空,可以自行改为 上拉显示更多 等
        contentdown: '',
        contentrefresh: '加载中...',
        contentnomore: '没有更多数据了'
    }
};

var MiniRefreshTheme = function (_Core) {
    _inherits(MiniRefreshTheme, _Core);

    /**
     * 构造,使用新的默认参数
     * @param {Object} options 配置信息
     * @constructor
     */
    function MiniRefreshTheme(options) {
        _classCallCheck$2(this, MiniRefreshTheme);

        var newOptions = extend$1(true, {}, defaultSetting$1, options);

        return _possibleConstructorReturn(this, (MiniRefreshTheme.__proto__ || Object.getPrototypeOf(MiniRefreshTheme)).call(this, newOptions));
    }

    _createClass$2(MiniRefreshTheme, [{
        key: '_initHook',
        value: function _initHook() {
            var container = this.container;
            var contentWrap = this.contentWrap;

            container.classList.add(CLASS_THEME);
            // 加上硬件加速让动画更流畅
            contentWrap.classList.add(CLASS_HARDWARE_SPEEDUP);

            if (this.options.isUseBodyScroll) {
                // 如果使用了body的scroll,需要增加对应的样式,否则默认的absolute无法被监听到
                container.classList.add(CLASS_BODY_SCROLL_WRAP);
                contentWrap.classList.add(CLASS_BODY_SCROLL_WRAP);
            }

            this._initDownWrap();
            this._initUpWrap();
            this._initToTop();
        }

        /**
         * 刷新的实现,需要根据新配置进行一些更改
         */

    }, {
        key: '_refreshHook',
        value: function _refreshHook() {
            // 如果开关csstranslate,需要兼容
            if (this.options.down.isWrapCssTranslate) {
                this._transformDownWrap(-this.downWrapHeight);
            } else {
                this._transformDownWrap(0, 0, true);
            }

            // toTop的显影控制,如果本身显示了,又更新为隐藏,需要马上隐藏
            if (!this.options.up.toTop.isEnable) {
                this.toTopBtn && this.toTopBtn.classList.add(CLASS_HIDDEN);
                this.isShowToTopBtn = false;
            }
        }
    }, {
        key: '_initDownWrap',
        value: function _initDownWrap() {
            var container = this.container;
            var contentWrap = this.contentWrap;
            var options = this.options;

            // 下拉的区域
            var downWrap = document.createElement('div');

            downWrap.className = CLASS_DOWN_WRAP + ' ' + CLASS_HARDWARE_SPEEDUP;
            downWrap.innerHTML = ' \n            <div class="downwrap-content">\n                <p class="downwrap-progress"></p>\n                <p class="downwrap-tips">' + options.down.contentdown + '</p>\n            </div>\n        ';
            container.insertBefore(downWrap, contentWrap);

            this.downWrap = downWrap;
            this.downWrapProgress = this.downWrap.querySelector('.downwrap-progress');
            this.downWrapTips = this.downWrap.querySelector('.downwrap-tips');
            // 是否能下拉的变量,控制pull时的状态转变
            this.isCanPullDown = false;
            this.downWrapHeight = downWrap.offsetHeight || DEFAULT_DOWN_HEIGHT;
            this._transformDownWrap(-this.downWrapHeight);
            MiniRefreshTheme._changeWrapStatusClass(this.downWrap, CLASS_STATUS_DEFAULT);
        }
    }, {
        key: '_transformDownWrap',
        value: function _transformDownWrap() {
            var offset = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
            var duration = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
            var isForce = arguments[2];

            if (!isForce && !this.options.down.isWrapCssTranslate) {
                // 哪怕关闭了isWrapCssTranslate,也可以通过isForce参数强制移动
                return;
            }

            var duratuinStr = duration + 'ms';
            var transformStr = 'translateY(' + offset + 'px)  translateZ(0px)';

            // 记得动画时 translateZ 否则硬件加速会被覆盖
            this.downWrap.style.webkitTransitionDuration = duratuinStr;
            this.downWrap.style.transitionDuration = duratuinStr;
            this.downWrap.style.webkitTransform = transformStr;
            this.downWrap.style.transform = transformStr;
        }
    }, {
        key: '_initUpWrap',
        value: function _initUpWrap() {
            var contentWrap = this.contentWrap;
            var options = this.options;

            // 上拉区域
            var upWrap = document.createElement('div');

            upWrap.className = CLASS_UP_WRAP + ' ' + CLASS_HARDWARE_SPEEDUP;
            upWrap.innerHTML = ' \n            <p class="upwrap-progress"></p>\n            <p class="upwrap-tips">' + options.up.contentdown + '</p>\n        ';

            upWrap.style.visibility = 'hidden';
            // 加到container中
            contentWrap.appendChild(upWrap);

            this.upWrap = upWrap;
            this.upWrapProgress = this.upWrap.querySelector('.upwrap-progress');
            this.upWrapTips = this.upWrap.querySelector('.upwrap-tips');
            MiniRefreshTheme._changeWrapStatusClass(this.upWrap, CLASS_STATUS_DEFAULT);
        }

        /**
         * 自定义实现一个toTop,由于这个是属于额外的事件所以没有添加的核心中,而是由各自的主题决定是否实现或者实现成什么样子
         * 不过框架中仍然提供了一个默认的minirefresh-totop样式,可以方便使用
         */

    }, {
        key: '_initToTop',
        value: function _initToTop() {
            var _this2 = this;

            var options = this.options;
            var toTop = options.up.toTop.isEnable;
            var duration = options.up.toTop.duration;

            if (toTop) {
                var toTopBtn = document.createElement('div');

                toTopBtn.className = CLASS_TO_TOP + ' ' + CLASS_THEME;

                toTopBtn.onclick = function () {
                    _this2.scroller.scrollTo(0, duration);
                };
                toTopBtn.classList.add(CLASS_HIDDEN);
                this.toTopBtn = toTopBtn;
                this.isShowToTopBtn = false;
                // 默认添加到body中防止冲突
                // 需要添加到container,否则多个totop无法识别
                this.container.appendChild(toTopBtn);
            }
        }
    }, {
        key: '_pullHook',
        value: function _pullHook(downHight, downOffset) {
            var options = this.options;
            var FULL_DEGREE = 360;

            if (downHight < downOffset) {
                if (this.isCanPullDown) {
                    this.isCanPullDown = false;
                    MiniRefreshTheme._changeWrapStatusClass(this.downWrap, CLASS_STATUS_DEFAULT);
                    this.downWrapTips.innerText = options.down.contentdown;
                }
            } else if (!this.isCanPullDown) {
                this.downWrapTips.innerText = options.down.contentover;
                this.isCanPullDown = true;
                MiniRefreshTheme._changeWrapStatusClass(this.downWrap, CLASS_STATUS_PULL);
            }

            if (this.downWrapProgress) {
                var rate = downHight / downOffset;
                var progress = FULL_DEGREE * rate;
                var rotateStr = 'rotate(' + progress + 'deg)';

                this.downWrapProgress.style.webkitTransform = rotateStr;
                this.downWrapProgress.style.transform = rotateStr;
            }

            this._transformDownWrap(-this.downWrapHeight + downHight);
        }
    }, {
        key: '_scrollHook',
        value: function _scrollHook(scrollTop) {
            // 用来判断toTop
            var options = this.options;
            var toTop = options.up.toTop.isEnable;
            var toTopBtn = this.toTopBtn;

            if (toTop && toTopBtn) {
                if (scrollTop >= options.up.toTop.offset) {
                    if (!this.isShowToTopBtn) {
                        toTopBtn.classList.remove(CLASS_FADE_OUT);
                        toTopBtn.classList.remove(CLASS_HIDDEN);
                        toTopBtn.classList.add(CLASS_FADE_IN);
                        this.isShowToTopBtn = true;
                    }
                } else if (this.isShowToTopBtn) {
                    toTopBtn.classList.add(CLASS_FADE_OUT);
                    toTopBtn.classList.remove(CLASS_FADE_IN);
                    this.isShowToTopBtn = false;
                }
            }
        }
    }, {
        key: '_downLoaingHook',
        value: function _downLoaingHook() {
            // 默认和contentWrap的同步
            this._transformDownWrap(-this.downWrapHeight + this.options.down.offset, this.options.down.bounceTime);
            this.downWrapTips.innerText = this.options.down.contentrefresh;
            this.downWrapProgress.classList.add(CLASS_ROTATE);
            MiniRefreshTheme._changeWrapStatusClass(this.downWrap, CLASS_STATUS_LOADING);
        }
    }, {
        key: '_downLoaingSuccessHook',
        value: function _downLoaingSuccessHook(isSuccess, successTips) {
            this.options.down.contentsuccess = successTips || this.options.down.contentsuccess;
            this.downWrapTips.innerText = isSuccess ? this.options.down.contentsuccess : this.options.down.contenterror;
            this.downWrapProgress.classList.remove(CLASS_ROTATE);
            this.downWrapProgress.classList.add(CLASS_FADE_OUT);
            this.downWrapProgress.classList.add(isSuccess ? CLASS_DOWN_SUCCESS : CLASS_DOWN_ERROR);

            MiniRefreshTheme._changeWrapStatusClass(this.downWrap, isSuccess ? CLASS_STATUS_SUCCESS : CLASS_STATUS_ERROR);
        }
    }, {
        key: '_downLoaingEndHook',
        value: function _downLoaingEndHook(isSuccess) {
            this.downWrapTips.innerText = this.options.down.contentdown;
            this.downWrapProgress.classList.remove(CLASS_ROTATE);
            this.downWrapProgress.classList.remove(CLASS_FADE_OUT);
            this.downWrapProgress.classList.remove(isSuccess ? CLASS_DOWN_SUCCESS : CLASS_DOWN_ERROR);
            // 默认为不可见
            // 需要重置回来
            this.isCanPullDown = false;
            this._transformDownWrap(-this.downWrapHeight, this.options.down.bounceTime);
            MiniRefreshTheme._changeWrapStatusClass(this.downWrap, CLASS_STATUS_DEFAULT);
        }
    }, {
        key: '_cancelLoaingHook',
        value: function _cancelLoaingHook() {
            this._transformDownWrap(-this.downWrapHeight, this.options.down.bounceTime);
            MiniRefreshTheme._changeWrapStatusClass(this.downWrap, CLASS_STATUS_DEFAULT);
        }
    }, {
        key: '_upLoaingHook',
        value: function _upLoaingHook(isShowUpLoading) {
            if (isShowUpLoading) {
                this.upWrapTips.innerText = this.options.up.contentrefresh;
                this.upWrapProgress.classList.add(CLASS_ROTATE);
                this.upWrapProgress.classList.remove(CLASS_HIDDEN);
                this.upWrap.style.visibility = 'visible';
            } else {
                this.upWrap.style.visibility = 'hidden';
            }
            MiniRefreshTheme._changeWrapStatusClass(this.upWrap, CLASS_STATUS_LOADING);
        }
    }, {
        key: '_upLoaingEndHook',
        value: function _upLoaingEndHook(isFinishUp) {
            if (!isFinishUp) {
                // 接下来还可以加载更多
                // this.upWrap.style.visibility = 'hidden';
                this.upWrapTips.innerText = this.options.up.contentdown;
                MiniRefreshTheme._changeWrapStatusClass(this.upWrap, CLASS_STATUS_DEFAULT);
            } else {
                // 已经没有更多数据了
                // this.upWrap.style.visibility = 'visible';
                this.upWrapTips.innerText = this.options.up.contentnomore;
                MiniRefreshTheme._changeWrapStatusClass(this.upWrap, CLASS_STATUS_NOMORE);
            }
            this.upWrapProgress.classList.remove(CLASS_ROTATE);
            this.upWrapProgress.classList.add(CLASS_HIDDEN);
        }
    }, {
        key: '_resetUpLoadingHook',
        value: function _resetUpLoadingHook() {
            // this.upWrap.style.visibility = 'hidden';
            this.upWrapTips.innerText = this.options.up.contentdown;
            this.upWrapProgress.classList.remove(CLASS_ROTATE);
            this.upWrapProgress.classList.add(CLASS_HIDDEN);
            MiniRefreshTheme._changeWrapStatusClass(this.upWrap, CLASS_STATUS_DEFAULT);
        }
    }, {
        key: '_lockUpLoadingHook',
        value: function _lockUpLoadingHook(isLock) {
            this.upWrap.style.visibility = isLock ? 'hidden' : 'visible';
        }
    }, {
        key: '_lockDownLoadingHook',
        value: function _lockDownLoadingHook(isLock) {
            this.downWrap.style.visibility = isLock ? 'hidden' : 'visible';
        }
    }], [{
        key: '_changeWrapStatusClass',
        value: function _changeWrapStatusClass(wrap, statusClass) {
            wrap.classList.remove(CLASS_STATUS_NOMORE);
            wrap.classList.remove(CLASS_STATUS_DEFAULT);
            wrap.classList.remove(CLASS_STATUS_PULL);
            wrap.classList.remove(CLASS_STATUS_LOADING);
            wrap.classList.remove(CLASS_STATUS_SUCCESS);
            wrap.classList.remove(CLASS_STATUS_ERROR);
            wrap.classList.add(statusClass);
        }
    }]);

    return MiniRefreshTheme;
}(Core$2);

MiniRefreshTheme.sign = 'default';
MiniRefreshTheme.version = version;
namespace$1('theme.defaults', MiniRefreshTheme);

// 覆盖全局变量
window.MiniRefresh = MiniRefreshTheme;

/**
 * 默认暴露的是MiniRefreshTools变量,各大主题都是挂在到上面的
 */

return MiniRefreshTools$2;

})));