jiaqingjiayi-xiaochengxu/甲情_甲意/miniprogram/node_modules/antd-mini/less/NoticeBar/index.js

import { __awaiter, __generator } from "tslib";
import { Component, triggerEventOnly, getValueFromProps, } from '../_util/simply';
import { getInstanceBoundingClientRect } from '../_util/jsapi/get-instance-bounding-client-rect';
import { NoticeBarDefaultProps } from './props';
Component(NoticeBarDefaultProps, {
    getInstance: function () {
        if (this.$id) {
            return my;
        }
        return this;
    },
    getBoundingClientRectWithId: function (prefix) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, getInstanceBoundingClientRect(this.getInstance(), "".concat(prefix).concat(this.$id ? "-".concat(this.$id) : ''))];
                    case 1: return [2 /*return*/, _a.sent()];
                }
            });
        });
    },
    onTap: function () {
        var mode = getValueFromProps(this, 'mode');
        if (mode === 'link') {
            triggerEventOnly(this, 'tap');
        }
        if (mode === 'closeable') {
            if (typeof this.props.onTap !== 'function') {
                return;
            }
            this.setData({
                show: false,
            });
            triggerEventOnly(this, 'tap');
        }
    },
    startMarquee: function (state) {
        var loop = getValueFromProps(this, 'loop');
        var leading = 500;
        var duration = state.duration, overflowWidth = state.overflowWidth, viewWidth = state.viewWidth;
        var marqueeScrollWidth = overflowWidth;
        if (loop) {
            marqueeScrollWidth = overflowWidth + viewWidth;
        }
        var newMarqueeStyle = "transform: translate3d(".concat(-marqueeScrollWidth, "px, 0, 0); transition: ").concat(duration, "s all linear ").concat(typeof leading === 'number' ? "".concat(leading / 1000, "s") : '0s', ";");
        this.setData({
            marqueeStyle: newMarqueeStyle,
        });
        return newMarqueeStyle;
    },
    measureText: function (callback) {
        var _this = this;
        var fps = 40;
        var loop = getValueFromProps(this, 'loop');
        // 计算文本所占据的宽度，计算需要滚动的宽度
        setTimeout(function () { return __awaiter(_this, void 0, void 0, function () {
            var marqueeSize, contentSize, overflowWidth, viewWidth, marqueeScrollWidth;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.getBoundingClientRectWithId('.ant-notice-bar-marquee')];
                    case 1:
                        marqueeSize = _a.sent();
                        return [4 /*yield*/, this.getBoundingClientRectWithId('.ant-notice-bar-content')];
                    case 2:
                        contentSize = _a.sent();
                        overflowWidth = (marqueeSize &&
                            contentSize &&
                            marqueeSize.width - contentSize.width) ||
                            0;
                        viewWidth = (contentSize === null || contentSize === void 0 ? void 0 : contentSize.width) || 0;
                        marqueeScrollWidth = overflowWidth;
                        if (loop) {
                            marqueeScrollWidth = overflowWidth + viewWidth;
                        }
                        if (overflowWidth > 0) {
                            callback({
                                overflowWidth: overflowWidth,
                                viewWidth: viewWidth,
                                duration: marqueeScrollWidth / fps,
                            });
                        }
                        return [2 /*return*/];
                }
            });
        }); }, 0);
    },
    // 文本滚动的计算
    resetMarquee: function (state) {
        var loop = getValueFromProps(this, 'loop');
        var viewWidth = state.viewWidth;
        var showMarqueeWidth = '0px';
        if (loop) {
            showMarqueeWidth = "".concat(viewWidth, "px");
        }
        var marqueeStyle = "transform: translate3d(".concat(showMarqueeWidth, ", 0, 0); transition: 0s all linear;");
        this.setData({
            marqueeStyle: marqueeStyle,
        });
    },
    onTransitionEnd: function () {
        var _this = this;
        var loop = getValueFromProps(this, 'loop');
        var trailing = 200;
        if (loop) {
            var timer_1 = setTimeout(function () {
                _this.measureText(function (state) {
                    _this.resetMarquee.call(_this, state);
                });
                clearTimeout(timer_1);
            }, trailing);
        }
    },
}, {
    show: true,
    marqueeStyle: '',
}, undefined, {
    didMount: function () {
        var _this = this;
        var enableMarquee = this.props.enableMarquee;
        if (enableMarquee) {
            this.measureText(function (state) {
                _this.startMarquee.call(_this, state);
            });
        }
    },
    didUpdate: function () {
        var _this = this;
        var enableMarquee = this.props.enableMarquee;
        // 这里更新处理的原因是防止notice内容在动画过程中发生改变。
        if (enableMarquee) {
            this.measureText(function (state) {
                _this.startMarquee.call(_this, state);
            });
        }
    },
    pageEvents: {
        onShow: function () {
            var _this = this;
            if (this.props.enableMarquee) {
                this.setData({ marqueeStyle: '' });
                this.resetMarquee({
                    overflowWidth: 0,
                    duration: 0,
                    viewWidth: 0,
                });
                this.measureText(function (state) {
                    _this.startMarquee.call(_this, state);
                });
            }
        },
    },
});