100 lines
3.8 KiB
JavaScript
100 lines
3.8 KiB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
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var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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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;
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return c > 3 && r && Object.defineProperty(target, key, r), r;
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};
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import { SuperComponent, wxComponent } from '../common/src/index';
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import ImageProps from './props';
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import config from '../common/config';
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import { addUnit, getRect } from '../common/utils';
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const { prefix } = config;
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const name = `${prefix}-image`;
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let Image = class Image extends SuperComponent {
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constructor() {
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super(...arguments);
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this.externalClasses = [`${prefix}-class`, `${prefix}-class-load`];
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this.options = {
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multipleSlots: true,
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};
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this.properties = ImageProps;
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this.data = {
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prefix,
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isLoading: true,
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isFailed: false,
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innerStyle: '',
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classPrefix: name,
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};
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this.preSrc = '';
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this.observers = {
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src() {
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if (this.preSrc === this.properties.src)
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return;
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this.update();
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},
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'width, height'(width, height) {
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this.calcSize(width, height);
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},
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};
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this.methods = {
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onLoaded(e) {
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const sdkVersion = wx.getSystemInfoSync().SDKVersion;
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const versionArray = sdkVersion.split('.').map((v) => parseInt(v, 10));
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const { mode } = this.properties;
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const isInCompatible = versionArray[0] < 2 ||
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(versionArray[0] === 2 && versionArray[1] < 10) ||
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(versionArray[0] === 2 && versionArray[1] === 10 && versionArray[2] < 3);
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if (mode === 'heightFix' && isInCompatible) {
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const { height: picHeight, width: picWidth } = e.detail;
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getRect(this, '#image').then((rect) => {
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const { height } = rect;
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const resultWidth = ((height / picHeight) * picWidth).toFixed(2);
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this.setData({ innerStyle: `height: ${addUnit(height)}; width: ${resultWidth}px;` });
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});
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}
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this.setData({
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isLoading: false,
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isFailed: false,
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});
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this.triggerEvent('load', e.detail);
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},
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onLoadError(e) {
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this.setData({
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isLoading: false,
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isFailed: true,
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});
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this.triggerEvent('error', e.detail);
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},
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calcSize(width, height) {
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let innerStyle = '';
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if (width) {
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innerStyle += `width: ${addUnit(width)};`;
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}
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if (height) {
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innerStyle += `height: ${addUnit(height)};`;
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}
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this.setData({
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innerStyle,
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});
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},
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update() {
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const { src } = this.properties;
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this.preSrc = src;
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if (!src) {
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this.onLoadError({ errMsg: '图片链接为空' });
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}
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else {
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this.setData({
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isLoading: true,
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isFailed: false,
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});
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}
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},
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};
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}
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};
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Image = __decorate([
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wxComponent()
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], Image);
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export default Image;
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