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| Component({
| options: {
| addGlobalClass: true,
| },
|
| properties: {
| id: {
| type: String,
| value: '',
| observer(id) {
| this.genIndependentID(id);
| if (this.properties.thresholds?.length) {
| this.createIntersectionObserverHandle();
| }
| },
| },
| data: {
| type: Object,
| observer(data) {
| if (!data) {
| return;
| }
| let isValidityLinePrice = true;
| if (data.originPrice && data.price && data.originPrice < data.price) {
| isValidityLinePrice = false;
| }
| this.setData({ goods: data, isValidityLinePrice });
| },
| },
| currency: {
| type: String,
| value: '¥',
| },
|
| thresholds: {
| type: Array,
| value: [],
| observer(thresholds) {
| if (thresholds && thresholds.length) {
| this.createIntersectionObserverHandle();
| } else {
| this.clearIntersectionObserverHandle();
| }
| },
| },
| },
|
| data: {
| independentID: '',
| goods: { id: '' },
| isValidityLinePrice: false,
| },
|
| lifetimes: {
| ready() {
| this.init();
| },
| detached() {
| this.clear();
| },
| },
|
| pageLifeTimes: {},
|
| methods: {
| clickHandle() {
| this.triggerEvent('click', { goods: this.data.goods });
| },
|
| clickThumbHandle() {
| this.triggerEvent('thumb', { goods: this.data.goods });
| },
|
| addCartHandle(e) {
| const { id } = e.currentTarget;
| const { id: cardID } = e.currentTarget.dataset;
| this.triggerEvent('add-cart', {
| ...e.detail,
| id,
| cardID,
| goods: this.data.goods,
| });
| },
|
| genIndependentID(id) {
| let independentID;
| if (id) {
| independentID = id;
| } else {
| independentID = `goods-card-${~~(Math.random() * 10 ** 8)}`;
| }
| this.setData({ independentID });
| },
|
| init() {
| const { thresholds, id } = this.properties;
| this.genIndependentID(id);
| if (thresholds && thresholds.length) {
| this.createIntersectionObserverHandle();
| }
| },
|
| clear() {
| this.clearIntersectionObserverHandle();
| },
|
| intersectionObserverContext: null,
|
| createIntersectionObserverHandle() {
| if (this.intersectionObserverContext || !this.data.independentID) {
| return;
| }
| this.intersectionObserverContext = this.createIntersectionObserver({
| thresholds: this.properties.thresholds,
| }).relativeToViewport();
|
| this.intersectionObserverContext.observe(
| `#${this.data.independentID}`,
| (res) => {
| this.intersectionObserverCB(res);
| },
| );
| },
|
| intersectionObserverCB() {
| this.triggerEvent('ob', {
| goods: this.data.goods,
| context: this.intersectionObserverContext,
| });
| },
|
| clearIntersectionObserverHandle() {
| if (this.intersectionObserverContext) {
| try {
| this.intersectionObserverContext.disconnect();
| } catch (e) {}
| this.intersectionObserverContext = null;
| }
| },
| },
| });
|
|
