antd-mini
Version:
antd-mini 是支付宝小程序 UI 组件库，遵循 Ant Design 规范。
184 lines (183 loc) • 8.49 kB
JavaScript
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
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') {
this.setData({
show: false,
});
triggerEventOnly(this, 'tap');
}
},
startMarquee: function (state) {
var _this = this;
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;
// 微信的view标签不支持onTransitionEnd，需要这里实现循环
var trailing = 200;
clearTimeout(this.timer);
this.timer = setTimeout(function () {
_this.measureText(function (state) {
_this.resetMarquee.call(_this, state);
_this.measureText(function (state) {
_this.startMarquee.call(_this, state);
});
});
clearTimeout(_this.timer);
}, trailing + duration * 1000);
}
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,
});
},
}, {
show: true,
marqueeStyle: '',
}, undefined, {
attached: function () {
var _this = this;
var enableMarquee = this.properties.enableMarquee;
if (enableMarquee) {
this.measureText(function (state) {
_this.startMarquee.call(_this, state);
});
}
},
observers: {
'enableMarquee': function (enableMarquee) {
var _this = this;
// 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);
});
}
},
},
pageLifetimes: {
show: function () {
var _this = this;
if (this.properties.enableMarquee) {
this.setData({ marqueeStyle: '' });
this.resetMarquee({
overflowWidth: 0,
duration: 0,
viewWidth: 0,
});
this.measureText(function (state) { return _this.startMarquee.call(_this, state); });
}
},
},
});