接口对接修改
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71
common/js/drawMixin.js
Normal file
71
common/js/drawMixin.js
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// 屏幕适配 mixin 函数
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// * 默认缩放值
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const scale = {
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width: '1',
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height: '1',
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};
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// * 设计稿尺寸(px)
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const baseWidth = 375;
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const baseHeight = 667;
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// * 需保持的比例(默认1.77778)
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const baseProportion = parseFloat((baseWidth / baseHeight).toFixed(5));
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export default {
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data() {
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return {
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// * 定时函数
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drawTiming: null,
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};
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},
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mounted() {
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this.calcRate();
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window.addEventListener('resize', this.resize);
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},
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beforeDestroy() {
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window.removeEventListener('resize', this.resize);
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},
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methods: {
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calcRate() {
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const appRef = this.$refs['appRef'];
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const fatherRef = this.$refs['fatherRef'];
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if (!appRef) return;
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// 当前宽高比
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const currentRate = parseFloat(
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(fatherRef.offsetWidth / fatherRef.offsetHeight).toFixed(5)
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);
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if (appRef) {
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if (currentRate > baseProportion) {
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// 表示更宽
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scale.width = (
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(fatherRef.offsetHeight * baseProportion) /
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baseWidth
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).toFixed(5);
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scale.height = (
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fatherRef.offsetHeight / baseHeight
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).toFixed(5);
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appRef.style.transform = `scale(${scale.width}, ${scale.height}) translate(-50%, -50%)`;
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} else {
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// 表示更高
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scale.height = (
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fatherRef.offsetWidth /
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baseProportion /
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baseHeight
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).toFixed(5);
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scale.width = (fatherRef.offsetWidth / baseWidth).toFixed(
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5
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);
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appRef.style.transform = `scale(${scale.width}, ${scale.height}) translate(-50%, -50%)`;
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}
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}
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},
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resize() {
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clearTimeout(this.drawTiming);
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this.drawTiming = setTimeout(() => {
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this.calcRate();
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}, 200);
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},
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},
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};
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