|
|
<template>
|
|
|
<view class="invite-poster-content">
|
|
|
<!-- TODO: 小程序端使用type='2d'会有报错 -->
|
|
|
<canvas class="hideCanvas" canvas-id="self_canvas" :style="{ width: (poster.width || 1) + 'px', height: (poster.height || 1) + 'px' }"></canvas>
|
|
|
</view>
|
|
|
</template>
|
|
|
|
|
|
<script>
|
|
|
/**
|
|
|
* shopro-canvas - canvas
|
|
|
* @property {Object} canvasParams - 自定义参数
|
|
|
* @property {Boolean} isAutoInit = [true] - 是否自动渲染canvas
|
|
|
*/
|
|
|
|
|
|
import _app from '@/shopro/poster/QS-SharePoster/app.js';
|
|
|
import { getSharePoster } from '@/shopro/poster/QS-SharePoster/QS-SharePoster.js';
|
|
|
import tools from '@/shopro/poster/tools.js';
|
|
|
import { mapMutations, mapActions, mapState, mapGetters } from 'vuex';
|
|
|
let ctx = null;
|
|
|
export default {
|
|
|
components: {},
|
|
|
data() {
|
|
|
return {
|
|
|
poster: {},
|
|
|
canvasId: 'self_canvas'
|
|
|
};
|
|
|
},
|
|
|
props: {
|
|
|
canvasParams: {
|
|
|
type: Object,
|
|
|
default: () => {}
|
|
|
},
|
|
|
isAutoInit: {
|
|
|
type: Boolean,
|
|
|
default: true
|
|
|
}
|
|
|
},
|
|
|
computed: {
|
|
|
...mapGetters(['initShare', 'userInfo'])
|
|
|
},
|
|
|
async mounted() {
|
|
|
ctx = uni.createCanvasContext(this.canvasId, this);
|
|
|
ctx && this.isAutoInit && this.shareFc();
|
|
|
},
|
|
|
methods: {
|
|
|
async shareFc() {
|
|
|
let that = this;
|
|
|
_app.showLoading('绘制中...');
|
|
|
let config = {};
|
|
|
if (that.canvasParams.backgroundImage) {
|
|
|
config = {
|
|
|
backgroundImage: tools.checkImgHttp(that.canvasParams.backgroundImage, 'bgImage')
|
|
|
};
|
|
|
}
|
|
|
if (that.canvasParams.background) {
|
|
|
config = {
|
|
|
background: {
|
|
|
width: that.canvasParams.background?.width || 100,
|
|
|
height: that.canvasParams.background?.height || 100,
|
|
|
backgroundColor: that.canvasParams.background?.color || '#000'
|
|
|
}
|
|
|
};
|
|
|
}
|
|
|
|
|
|
try {
|
|
|
_app.log('准备生成:' + new Date());
|
|
|
const d = await getSharePoster({
|
|
|
_this: that, //若在组件中使用 必传
|
|
|
...config,
|
|
|
posterCanvasId: that.canvasId, //canvasId
|
|
|
Context: ctx,
|
|
|
delayTimeScale: 10, //延时系数
|
|
|
draw: false, //是否执行ctx.draw方法, 推荐false，自己去draw
|
|
|
drawArray: ({ bgObj, type, bgScale }) => {
|
|
|
let arr = tools.initDrawArray(bgObj, that.canvasParams.drawArray);
|
|
|
return new Promise((rs, rj) => {
|
|
|
rs(arr);
|
|
|
});
|
|
|
},
|
|
|
setCanvasWH: ({ bgObj, type, bgScale }) => {
|
|
|
// 为动态设置画布宽高的方法，
|
|
|
this.poster = bgObj;
|
|
|
}
|
|
|
});
|
|
|
await that.drawPoster();
|
|
|
} catch (e) {
|
|
|
_app.hideLoading();
|
|
|
_app.showToast(JSON.stringify(e));
|
|
|
console.log(JSON.stringify(e));
|
|
|
}
|
|
|
},
|
|
|
async drawPoster() {
|
|
|
let that = this;
|
|
|
ctx.draw(false, () => {
|
|
|
uni.canvasToTempFilePath(
|
|
|
{
|
|
|
canvasId: that.canvasId,
|
|
|
success: res => {
|
|
|
_app.hideLoading();
|
|
|
that.$emit('success', res.tempFilePath);
|
|
|
_app.log('海报生成成功, 时间:' + new Date() + '， 临时路径: ' + res.tempFilePath);
|
|
|
},
|
|
|
fail: err => {
|
|
|
_app.hideLoading();
|
|
|
console.log('生成异常', err);
|
|
|
}
|
|
|
},
|
|
|
that
|
|
|
);
|
|
|
});
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
</script>
|
|
|
|
|
|
<style lang="scss">
|
|
|
.hideCanvas {
|
|
|
position: fixed;
|
|
|
top: -99999upx;
|
|
|
left: -99999upx;
|
|
|
z-index: -99999;
|
|
|
}
|
|
|
</style>
|
