MiniScm/mycomponents/node_modules/antd-mini/less/Tabs/index.js

import { __awaiter, __generator } from "tslib";
import { Component, triggerEvent, getValueFromProps } from '../_util/simply';
import { TabsDefaultProps } from './props';
import createValue from '../mixins/value';
import { getInstanceBoundingClientRect } from '../_util/jsapi/get-instance-bounding-client-rect';
Component(TabsDefaultProps, {
    getInstance: function () {
        if (this.$id) {
            return my;
        }
        return this;
    },
    get$Id: function () {
        return this.$id ? "-".concat(this.$id) : '';
    },
    getBoundingClientRect: function (query) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, getInstanceBoundingClientRect(this.getInstance(), query)];
                    case 1: return [2 /*return*/, _a.sent()];
                }
            });
        });
    },
    updateFade: function () {
        return __awaiter(this, void 0, void 0, function () {
            var items, _a, view, item;
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0:
                        this.setData({
                            leftFade: !!this.scrollLeft,
                        });
                        items = getValueFromProps(this, 'items');
                        return [4 /*yield*/, Promise.all([
                                this.getBoundingClientRect("#ant-tabs-bar-scroll-view".concat(this.get$Id())),
                                this.getBoundingClientRect("#ant-tabs-bar-item".concat(this.get$Id(), "-").concat(items.length - 1)),
                            ])];
                    case 1:
                        _a = _b.sent(), view = _a[0], item = _a[1];
                        if (!item || !view) {
                            return [2 /*return*/];
                        }
                        this.setData({
                            rightFade: item.left + item.width / 2 > view.width,
                        });
                        return [2 /*return*/];
                }
            });
        });
    },
    updateScroll: function () {
        return __awaiter(this, void 0, void 0, function () {
            var current, _a, view, item, _b, direction, scrollMode, scrollTop, needScroll_1, distance, scrollLeft, needScroll, distance;
            return __generator(this, function (_c) {
                switch (_c.label) {
                    case 0:
                        current = this.getValue();
                        return [4 /*yield*/, Promise.all([
                                this.getBoundingClientRect("#ant-tabs-bar-scroll-view".concat(this.get$Id())),
                                this.getBoundingClientRect("#ant-tabs-bar-item".concat(this.get$Id(), "-").concat(current)),
                            ])];
                    case 1:
                        _a = _c.sent(), view = _a[0], item = _a[1];
                        if (!view || !item) {
                            return [2 /*return*/];
                        }
                        _b = getValueFromProps(this, [
                            'direction',
                            'scrollMode',
                        ]), direction = _b[0], scrollMode = _b[1];
                        if (direction === 'vertical') {
                            scrollTop = this.scrollTop || 0;
                            needScroll_1 = false;
                            if (scrollMode === 'center') {
                                needScroll_1 = true;
                                scrollTop +=
                                    item.top - view.top - Math.max((view.height - item.height) / 2, 0);
                            }
                            else {
                                distance = item.top - view.top;
                                if (distance < 0) {
                                    scrollTop += distance;
                                    needScroll_1 = true;
                                }
                                else if (distance + item.height > view.height) {
                                    scrollTop += Math.min(distance + item.height - view.height, distance);
                                    needScroll_1 = true;
                                }
                            }
                            if (needScroll_1) {
                                if (scrollTop === this.data.scrollTop) {
                                    scrollTop += Math.random();
                                }
                                this.setData({
                                    scrollTop: scrollTop,
                                });
                            }
                            return [2 /*return*/];
                        }
                        scrollLeft = this.scrollLeft || 0;
                        needScroll = false;
                        if (scrollMode === 'center') {
                            needScroll = true;
                            scrollLeft +=
                                item.left - view.left - Math.max((view.width - item.width) / 2, 0);
                        }
                        else {
                            distance = item.left - view.left;
                            if (distance < 0) {
                                scrollLeft += distance;
                                needScroll = true;
                            }
                            else if (distance + item.width > view.width) {
                                scrollLeft += Math.min(distance + item.width - view.width, distance);
                                needScroll = true;
                            }
                        }
                        if (needScroll) {
                            if (scrollLeft === this.data.scrollLeft) {
                                scrollLeft += Math.random();
                            }
                            this.setData({
                                scrollLeft: scrollLeft,
                            });
                            this.updateFade();
                        }
                        return [2 /*return*/];
                }
            });
        });
    },
    onScroll: function (e) {
        return __awaiter(this, void 0, void 0, function () {
            var direction;
            return __generator(this, function (_a) {
                direction = getValueFromProps(this, 'direction');
                if (direction === 'vertical') {
                    this.scrollTop = e.detail.scrollTop;
                    return [2 /*return*/];
                }
                this.scrollLeft = e.detail.scrollLeft;
                this.updateFade();
                return [2 /*return*/];
            });
        });
    },
    onChange: function (e) {
        var index = parseInt(e.currentTarget.dataset.index, 10);
        var items = getValueFromProps(this, 'items');
        if (items[index].disabled) {
            return;
        }
        if (this.getValue() === index) {
            return;
        }
        if (!this.isControlled()) {
            this.update(index);
        }
        triggerEvent(this, 'change', index, e);
    },
}, {
    scrollLeft: 0,
    scrollTop: 0,
    leftFade: false,
    rightFade: false,
}, [
    createValue({
        valueKey: 'current',
        defaultValueKey: 'defaultCurrent',
    }),
], {
    scrollLeft: 0,
    scrollTop: 0,
    didMount: function () {
        this.updateScroll();
    },
    didUpdate: function (prevProps, prevData) {
        var items = getValueFromProps(this, 'items');
        if (prevProps.items !== items || !this.isEqualValue(prevData)) {
            this.updateScroll();
        }
    },
});