antd-mini
Version:
antd-mini 是支付宝小程序 UI 组件库，遵循 Ant Design 规范。
192 lines (191 loc) • 8.72 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, getValueFromProps } from '../_util/simply';
import { ProgressBarDefaultProps } from './props';
import { createCanvasContext } from '../_util/jsapi/create-canvas-context';
import { getSystemInfo } from '../_util/jsapi/get-system-info';
var animationFrameDuration = 16;
Component(ProgressBarDefaultProps, {
requestAnimationFrame: function (fn, duration) {
if (duration === void 0) { duration = animationFrameDuration; }
setTimeout(fn, duration);
},
getDrawColor: function () {
var _a = getValueFromProps(this, [
'strokeColor',
'trailColor',
]), strokeColor = _a[0], trailColor = _a[1];
var drawColor = {
strokeColor: strokeColor || '#1677ff',
trailColor: trailColor || '#F5F5F5',
};
return drawColor;
},
getCanvasContext: function () {
return __awaiter(this, void 0, void 0, function () {
var systemInfo, pixelRatio, width, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
if (this.ctx)
return [2 /*return*/];
return [4 /*yield*/, getSystemInfo()];
case 1:
systemInfo = _b.sent();
pixelRatio = systemInfo.pixelRatio;
width = getValueFromProps(this, 'width');
_a = this;
return [4 /*yield*/, createCanvasContext([this.canvasId, this])];
case 2:
_a.ctx = _b.sent();
this.ctx.imageSmoothingEnabled = true;
this.ctx.imageSmoothingQuality = 'high';
// 微信小程序不支持 CanvasWidth 参数，此时 pixelRatio 默认为 1
pixelRatio = 1;
this.setData({
canvasWidth: width * pixelRatio,
});
return [2 /*return*/];
}
});
});
},
clearCanvas: function () {
var ctx = this.ctx;
var canvasWidth = this.data.canvasWidth;
ctx.clearRect(0, 0, canvasWidth, canvasWidth);
},
updateCanvasProgress: function (prev) {
return __awaiter(this, void 0, void 0, function () {
var drawColor, curRad, targetRad, direction, draw;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
drawColor = this.getDrawColor();
return [4 /*yield*/, this.getCanvasContext()];
case 1:
_a.sent();
curRad = Math.floor((prev / 100) * 360);
targetRad = Math.floor((this.data.curProgress / 100) * 360);
direction = curRad < targetRad ? 1 : -1;
draw = function () {
if (curRad == targetRad)
return;
var _a = getValueFromProps(_this, [
'speed',
'animation',
]), speed = _a[0], animation = _a[1];
curRad = direction * speed + curRad;
if (direction == -1) {
curRad = Math.max(curRad, targetRad);
}
else {
curRad = Math.min(curRad, targetRad);
}
_this.clearCanvas();
_this.drawOrbit(drawColor.trailColor);
_this.drawProgress(drawColor.strokeColor, curRad);
_this.ctx.draw(true);
_this.requestAnimationFrame(draw, animation ? animationFrameDuration : 0);
};
draw();
return [2 /*return*/];
}
});
});
},
drawProgress: function (color, rad) {
var ctx = this.ctx;
var canvasWidth = this.data.canvasWidth;
var strokeWidth = Number(getValueFromProps(this, 'strokeWidth'));
ctx.beginPath();
ctx.strokeStyle = color;
ctx.lineWidth = strokeWidth;
ctx.setLineCap('round');
ctx.arc(canvasWidth / 2, canvasWidth / 2, canvasWidth / 2 - strokeWidth, -Math.PI / 2, -Math.PI / 2 + (rad / 360) * 2 * Math.PI, false);
ctx.stroke();
},
drawOrbit: function (color) {
var ctx = this.ctx;
var canvasWidth = this.data.canvasWidth;
var strokeWidth = Number(getValueFromProps(this, 'strokeWidth'));
ctx.beginPath();
ctx.strokeStyle = color;
ctx.lineWidth = strokeWidth;
ctx.arc(canvasWidth / 2, canvasWidth / 2, canvasWidth / 2 - strokeWidth, 0, Math.PI * 2, false);
ctx.stroke();
},
calProgress: function () {
var _a = getValueFromProps(this, ['percent', 'type']), p = _a[0], type = _a[1];
var percent = +p;
if (isNaN(percent)) {
return this.setData({ curProgress: 0 });
}
var prevProgress = this.data.curProgress;
if (percent === prevProgress) {
return;
}
this.setData({
curProgress: percent > 100 ? 100 : percent < 0 ? 0 : percent,
});
if (type === 'circle') {
this.setCanvasId();
this.updateCanvasProgress(prevProgress);
}
},
setCanvasId: function () {
this.canvasId = this.$id
? "ant-progress-canvas-".concat(this.$id)
: "ant-progress-canvas";
},
}, {
curProgress: 0,
canvasWidth: 100,
}, undefined, {
ctx: null,
drawColor: null,
canvas: null,
attached: function () {
this.calProgress();
},
observers: {
'**': function () {
this.calProgress();
},
},
});