var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
|
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
|
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
|
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
|
return c > 3 && r && Object.defineProperty(target, key, r), r;
|
};
|
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());
|
});
|
};
|
import { SuperComponent, wxComponent } from '../common/src/index';
|
import config from '../common/config';
|
import { trimSingleValue, trimValue } from './tool';
|
import props from './props';
|
import { getRect } from '../common/utils';
|
import Bus from '../common/bus';
|
const { prefix } = config;
|
const name = `${prefix}-slider`;
|
let Slider = class Slider extends SuperComponent {
|
constructor() {
|
super(...arguments);
|
this.externalClasses = [
|
`${prefix}-class`,
|
`${prefix}-class-bar`,
|
`${prefix}-class-bar-active`,
|
`${prefix}-class-bar-disabled`,
|
`${prefix}-class-cursor`,
|
];
|
this.properties = props;
|
this.controlledProps = [
|
{
|
key: 'value',
|
event: 'change',
|
},
|
];
|
this.data = {
|
sliderStyles: '',
|
classPrefix: name,
|
initialLeft: null,
|
initialRight: null,
|
activeLeft: 0,
|
activeRight: 0,
|
maxRange: 0,
|
lineLeft: 0,
|
lineRight: 0,
|
dotTopValue: [0, 0],
|
_value: 0,
|
blockSize: 20,
|
isScale: false,
|
scaleArray: [],
|
scaleTextArray: [],
|
prefix,
|
isVisibleToScreenReader: false,
|
};
|
this.observers = {
|
value(newValue) {
|
this.handlePropsChange(newValue);
|
},
|
_value(newValue) {
|
this.bus.on('initial', () => this.renderLine(newValue));
|
this.toggleA11yTips();
|
},
|
marks(val) {
|
this.bus.on('initial', () => this.handleMark(val));
|
},
|
};
|
this.lifetimes = {
|
created() {
|
this.bus = new Bus();
|
},
|
attached() {
|
const { value } = this.properties;
|
if (!value)
|
this.handlePropsChange(0);
|
this.init();
|
this.injectPageScroll();
|
},
|
};
|
}
|
injectPageScroll() {
|
const { range, vertical } = this.properties;
|
if (!range || !vertical)
|
return;
|
const pages = getCurrentPages() || [];
|
let curPage = null;
|
if (pages && pages.length - 1 >= 0) {
|
curPage = pages[pages.length - 1];
|
}
|
if (!curPage)
|
return;
|
const originPageScroll = curPage === null || curPage === void 0 ? void 0 : curPage.onPageScroll;
|
curPage.onPageScroll = (rest) => {
|
originPageScroll === null || originPageScroll === void 0 ? void 0 : originPageScroll.call(this, rest);
|
this.observerScrollTop(rest);
|
};
|
}
|
observerScrollTop(rest) {
|
const { scrollTop } = rest || {};
|
this.pageScrollTop = scrollTop;
|
}
|
toggleA11yTips() {
|
this.setData({
|
isVisibleToScreenReader: true,
|
});
|
setTimeout(() => {
|
this.setData({
|
isVisibleToScreenReader: false,
|
});
|
}, 2000);
|
}
|
renderLine(val) {
|
const { min, max, range } = this.properties;
|
const { maxRange } = this.data;
|
if (range) {
|
const left = (maxRange * (val[0] - Number(min))) / (Number(max) - Number(min));
|
const right = (maxRange * (Number(max) - val[1])) / (Number(max) - Number(min));
|
this.setLineStyle(left, right);
|
}
|
else {
|
this.setSingleBarWidth(val);
|
}
|
}
|
triggerValue(value) {
|
if (this.preval === value)
|
return;
|
this.preval = value;
|
this._trigger('change', {
|
value: trimValue(value, this.properties),
|
});
|
}
|
handlePropsChange(newValue) {
|
const value = trimValue(newValue, this.properties);
|
const setValueAndTrigger = () => {
|
this.setData({
|
_value: value,
|
});
|
};
|
if (this.data.maxRange === 0) {
|
this.init().then(setValueAndTrigger);
|
return;
|
}
|
setValueAndTrigger();
|
}
|
handleMark(marks) {
|
const calcPos = (arr) => {
|
const { max, theme } = this.properties;
|
const { blockSize, maxRange } = this.data;
|
const margin = theme === 'capsule' ? blockSize / 2 : 0;
|
return arr.map((item) => ({
|
val: item,
|
left: Math.round((item / Number(max)) * maxRange) + margin,
|
}));
|
};
|
if ((marks === null || marks === void 0 ? void 0 : marks.length) && Array.isArray(marks)) {
|
this.setData({
|
isScale: true,
|
scaleArray: calcPos(marks),
|
scaleTextArray: [],
|
});
|
}
|
if (Object.prototype.toString.call(marks) === '[object Object]') {
|
const scaleArray = Object.keys(marks).map((item) => Number(item));
|
const scaleTextArray = scaleArray.map((item) => marks[item]);
|
this.setData({
|
isScale: scaleArray.length > 0,
|
scaleArray: calcPos(scaleArray),
|
scaleTextArray,
|
});
|
}
|
}
|
setSingleBarWidth(value) {
|
const { max, min, theme } = this.properties;
|
const { maxRange, blockSize } = this.data;
|
const halfBlock = theme === 'capsule' ? Number(blockSize) / 2 : 0;
|
const percentage = (Number(value) - Number(min)) / (Number(max) - Number(min));
|
const width = percentage * maxRange + halfBlock;
|
this.setData({
|
lineBarWidth: `${width}px`,
|
});
|
}
|
init() {
|
return __awaiter(this, void 0, void 0, function* () {
|
const line = yield getRect(this, '#sliderLine');
|
const { blockSize } = this.data;
|
const { theme, vertical } = this.properties;
|
const halfBlock = Number(blockSize) / 2;
|
const { top, bottom, right, left } = line;
|
let maxRange = vertical ? bottom - top : right - left;
|
let initialLeft = vertical ? top : left;
|
let initialRight = vertical ? bottom : right;
|
if (initialLeft === 0 && initialRight === 0)
|
return;
|
if (theme === 'capsule') {
|
maxRange = maxRange - Number(blockSize) - 6;
|
initialLeft -= halfBlock;
|
initialRight -= halfBlock;
|
}
|
this.setData({
|
maxRange,
|
initialLeft,
|
initialRight,
|
});
|
this.bus.emit('initial');
|
});
|
}
|
stepValue(value) {
|
const { step, min, max } = this.properties;
|
const decimal = String(step).indexOf('.') > -1 ? String(step).length - String(step).indexOf('.') - 1 : 0;
|
const closestStep = trimSingleValue(Number((Math.round(value / Number(step)) * Number(step)).toFixed(decimal)), Number(min), Number(max));
|
return closestStep;
|
}
|
onSingleLineTap(e) {
|
const { disabled } = this.properties;
|
if (disabled)
|
return;
|
const value = this.getSingleChangeValue(e);
|
this.triggerValue(value);
|
}
|
getSingleChangeValue(e) {
|
const { min, max } = this.properties;
|
const { initialLeft, maxRange } = this.data;
|
const [touch] = e.changedTouches;
|
const pagePosition = this.getPagePosition(touch);
|
const currentLeft = pagePosition - initialLeft;
|
let value = 0;
|
if (currentLeft <= 0) {
|
value = Number(min);
|
}
|
else if (currentLeft >= maxRange) {
|
value = Number(max);
|
}
|
else {
|
value = (currentLeft / maxRange) * (Number(max) - Number(min)) + Number(min);
|
}
|
return this.stepValue(value);
|
}
|
convertPosToValue(posValue, dir) {
|
const { maxRange } = this.data;
|
const { max, min } = this.properties;
|
return dir === 0
|
? (posValue / maxRange) * (Number(max) - Number(min)) + Number(min)
|
: Number(max) - (posValue / maxRange) * (Number(max) - Number(min));
|
}
|
onLineTap(e) {
|
const { disabled, theme, vertical } = this.properties;
|
const { initialLeft, initialRight, maxRange, blockSize } = this.data;
|
if (disabled)
|
return;
|
const [touch] = e.changedTouches;
|
const pagePosition = this.getPagePosition(touch);
|
const halfBlock = theme === 'capsule' ? Number(blockSize) / 2 : 0;
|
const currentLeft = pagePosition - initialLeft;
|
if (currentLeft < 0 || currentLeft > maxRange + Number(blockSize))
|
return;
|
Promise.all([getRect(this, '#leftDot'), getRect(this, '#rightDot')]).then(([leftDot, rightDot]) => {
|
const pageScrollTop = this.pageScrollTop || 0;
|
const leftDotPosition = vertical ? leftDot.top + pageScrollTop : leftDot.left;
|
const distanceLeft = Math.abs(pagePosition - leftDotPosition - halfBlock);
|
const rightDotPosition = vertical ? rightDot.top + pageScrollTop : rightDot.left;
|
const distanceRight = Math.abs(rightDotPosition - pagePosition + halfBlock);
|
const isMoveLeft = distanceLeft < distanceRight;
|
if (isMoveLeft) {
|
const left = pagePosition - initialLeft;
|
const leftValue = this.convertPosToValue(left, 0);
|
this.triggerValue([this.stepValue(leftValue), this.data._value[1]]);
|
}
|
else {
|
const right = -(pagePosition - initialRight);
|
const rightValue = this.convertPosToValue(right, 1);
|
this.triggerValue([this.data._value[0], this.stepValue(rightValue)]);
|
}
|
});
|
}
|
onTouchStart(e) {
|
this.triggerEvent('dragstart', { e });
|
}
|
onTouchMoveLeft(e) {
|
const { disabled } = this.properties;
|
const { initialLeft, _value } = this.data;
|
if (disabled)
|
return;
|
const [touch] = e.changedTouches;
|
const pagePosition = this.getPagePosition(touch);
|
const currentLeft = pagePosition - initialLeft;
|
const newData = [..._value];
|
const leftValue = this.convertPosToValue(currentLeft, 0);
|
newData[0] = this.stepValue(leftValue);
|
this.triggerValue(newData);
|
}
|
onTouchMoveRight(e) {
|
const { disabled } = this.properties;
|
const { initialRight, _value } = this.data;
|
if (disabled)
|
return;
|
const [touch] = e.changedTouches;
|
const pagePosition = this.getPagePosition(touch);
|
const currentRight = -(pagePosition - initialRight);
|
const newData = [..._value];
|
const rightValue = this.convertPosToValue(currentRight, 1);
|
newData[1] = this.stepValue(rightValue);
|
this.triggerValue(newData);
|
}
|
setLineStyle(left, right) {
|
const { theme } = this.properties;
|
const { blockSize, maxRange } = this.data;
|
const halfBlock = theme === 'capsule' ? Number(blockSize) / 2 : 0;
|
const [a, b] = this.data._value;
|
const cut = (v) => parseInt(v, 10);
|
this.setData({
|
dotTopValue: [a, b],
|
});
|
if (left + right <= maxRange) {
|
this.setData({
|
lineLeft: cut(left + halfBlock),
|
lineRight: cut(right + halfBlock),
|
});
|
}
|
else {
|
this.setData({
|
lineLeft: cut(maxRange + halfBlock - right),
|
lineRight: cut(maxRange - left + halfBlock * 1.5),
|
});
|
}
|
}
|
onTouchEnd(e) {
|
this.triggerEvent('dragend', { e });
|
}
|
getPagePosition(touch) {
|
const { pageX, pageY } = touch;
|
const { vertical } = this.properties;
|
return vertical ? pageY : pageX;
|
}
|
};
|
Slider = __decorate([
|
wxComponent()
|
], Slider);
|
export default Slider;
|
