syyxuniapp/pages/activity/poster-poster/index.vue

<template>
	<view class="posterCon" :style="colorStyle">
		<view class='poster-poster'>
			<view class='tip'><text class='iconfont icon-shuoming'></text>提示：点击图片即可保存至手机相册 </view>
			<view class='pictrue'>
				<!-- <image :src='image' mode="widthFix"></image> -->
				<image class="canvas" :src="posterImage" v-if="posterImage" @click="savePosterPathMp(posterImage)">
				</image>
				<canvas class="canvas" canvas-id="myCanvas" v-else></canvas>
			</view>
		</view>
		<!-- #ifdef H5 || APP-PLUS -->
		<zb-code ref="qrcode" :show="codeShow" :cid="cid" :val="val" :size="size" :unit="unit" :background="background"
			:foreground="foreground" :pdground="pdground" :icon="icon" :iconSize="iconsize" :onval="onval"
			:loadMake="loadMake" @result="qrR" />
		<!-- #endif -->
	</view>
</template>

<script>
	import zbCode from '@/components/zb-code/zb-code.vue'
	import {
		getBargainPoster,
		getCombinationPoster,
		getBargainPosterData,
		getCombinationPosterData
	} from '@/api/activity.js';
	import {
		getUserInfo,
		imgToBase,
		routineCode
	} from '@/api/user.js';
	// #ifdef APP-PLUS
	import {
		TOKENNAME,
		HTTP_REQUEST_URL
	} from '@/config/app.js';
	// #endif
	import colors from '@/mixins/color.js'
	export default {
		components: {
			zbCode
		},
		mixins:[colors],
		data() {
			return {
				canvasStatus: true,
				posterImage: "",
				parameter: {
					'navbar': '1',
					'return': '1',
					'title': '拼团海报',
					'color': true,
					'class': '0'
				},
				type: 0,
				id: 0,
				spid: 0,
				image: '',
				from: '',
				uid: "",
				//二维码参数
				codeShow: false,
				cid: '1',
				ifShow: true,
				val: "", // 要生成的二维码值
				size: 200, // 二维码大小
				unit: 'upx', // 单位
				background: '#FFF', // 背景色
				foreground: '#000', // 前景色
				pdground: '#000', // 角标色
				icon: '', // 二维码图标
				iconsize: 40, // 二维码图标大小
				lv: 3, // 二维码容错级别 ， 一般不用设置，默认就行
				onval: true, // val值变化时自动重新生成二维码
				loadMake: true, // 组件加载完成后自动生成二维码
				src: '', // 二维码生成后的图片地址或base64
				codeSrc: "",
				wd: 0,
				hg: 0,
				posterBag: "../static/posterBag.png",
				mpUrl: "",
			}
		},
		onLoad(options) {
			// #ifdef MP
			this.from = 'routine'
			// #endif
			// #ifdef H5 || APP-PLUS
			this.from = 'wechat'
			// #endif

			var that = this;
			if (options.hasOwnProperty('type') && options.hasOwnProperty('id')) {
				this.type = options.type
				this.id = options.id
				if (options.type == 1) {
					this.spid = options.spid
					uni.setNavigationBarTitle({
						title: '砍价海报'
					})
				} else {
					uni.setNavigationBarTitle({
						title: '拼团海报'
					})
				}
			} else {
				return app.Tips({
					title: '参数错误',
					icon: 'none'
				}, {
					tab: 3,
					url: 1
				});
			}

		},
		onReady() {
			// #ifdef H5
			if (this.type == 1) {
				this.val = window.location.origin + '/pages/activity/goods_bargain_details/index?id=' + this.id +
					'&spid=' +
					this.$store.state.app.uid
			} else if (this.type == 2) {
				this.val = window.location.origin + '/pages/activity/goods_combination_status/index?id=' + this.id +
					'&spid=' +
					this.$store.state.app.uid
			}
			// #endif
			// #ifdef APP-PLUS
			if (this.type == 1) {
				this.val = HTTP_REQUEST_URL + '/pages/activity/goods_bargain_details/index?id=' + this.id + '&spid=' +
					this.$store.state.app.uid
			} else if (this.type == 2) {
				this.val = HTTP_REQUEST_URL + '/pages/activity/goods_combination_status/index?id=' + this.id +
					'&spid=' +
					this.$store.state.app.uid
			}

			// #endif
			setTimeout(e => {
				this.getPosterInfo();
			}, 200)
			this.$nextTick(function() {
				let selector = uni.createSelectorQuery().select('.pictrue');
				selector.fields({
					size: true
				}, data => {
					this.wd = data.width
					this.hg = data.height
				}).exec();
			})
			// this.routineCode()
			
			
		},
		onShow(){
			uni.removeStorageSync('form_type_cart');
		},
		methods: {
			async getPosterInfo() {
				var that = this,
					url = '';
				let data = {
					id: that.id,
					'from': that.from
				};
				let userData = await getUserInfo()
				this.uid = userData.data.uid
				let goods_img, mp_code, resData, arr, mpUrl
				// #ifdef MP
				// #endif
				uni.showLoading({
					title: '海报生成中',
					mask: true
				});
				let flag = false;      
				if (that.type == 1) {
					await getBargainPosterData(that.id).then(res => {
						resData = res.data
					}).catch(err => {
						flag = true;
						that.$util.Tips({
							title: err
						},'/pages/activity/goods_bargain/index');
					})
					
				} else {
					await getCombinationPosterData(that.id).then(res => {
						resData = res.data
					}).catch(err => {
						flag = true;
						that.$util.Tips({
							title: '海报图片获取失败'
						});
					})
				}
				if(flag) return false;
				
				// #ifdef H5 || APP-PLUS
				goods_img = await this.imgToBase(resData.image)
				mp_code = await resData.url?this.imgToBase(resData.url):''
				arr = [this.posterBag, goods_img, mp_code || this.codeSrc]
				// #endif
				// #ifdef MP
				mpUrl = await this.downloadFilestoreImage(resData.url)
				arr = [this.posterBag, await this.downloadFilestoreImage(resData.image), mpUrl]
				// #endif
				this.$nextTick((e) => {
					that.$util.bargainPosterCanvas(arr, resData.title, resData.label, resData.msg, resData
						.price,
						this.wd,
						this.hg,
						(tempFilePath) => {
							this.posterImage = tempFilePath
						});
				})
			},
			// async routineCode() {
			// 	let res = await routineCode()
			// 	this.mpUrl = res.data.url
			// },
			//图片转符合安全域名路径
			downloadFilestoreImage(url) {
				url = this.setDomain(url)
				return new Promise((resolve, reject) => {
					let that = this;
					uni.downloadFile({
						url: url,
						success: function(res) {
							resolve(res.tempFilePath);
						},
						fail: function() {
							return that.$util.Tips({
								title: ''
							});
						}
					});
				})
			},
			//替换安全域名
			setDomain: function(url) {
				url = url ? url.toString() : '';
				//本地调试打开,生产请注销
				if (url.indexOf('https://') > -1) return url;
				else return url.replace('http://', 'https://');
			},
			async imgToBase(url) {
				let res = await imgToBase({
					image: url
				})

				return res.data.image
			},
			downloadImg() {

			},
			savePosterPathMp(url) {
				let that = this;
				// #ifdef APP-PLUS
				uni.saveImageToPhotosAlbum({
					filePath: url,
					success: function(res) {
						that.$util.Tips({
							title: '保存成功',
							icon: 'success'
						});
					},
					fail: function(res) {
						that.$util.Tips({
							title: '保存失败'
						});
					}
				});
				// #endif
				// #ifdef MP
				uni.getSetting({
					success(res) {
						if (!res.authSetting['scope.writePhotosAlbum']) {
							uni.authorize({
								scope: 'scope.writePhotosAlbum',
								success() {
									uni.saveImageToPhotosAlbum({
										filePath: url,
										success: function(res) {
											that.$util.Tips({
												title: '保存成功',
												icon: 'success'
											});
										},
										fail: function(res) {
											that.$util.Tips({
												title: '保存失败'
											});
										}
									});
								},
								fail: function(res) {
									that.$util.Tips({
										title: '请先开启文件访问权限'
									});
								}
							});
						} else {
							uni.saveImageToPhotosAlbum({
								filePath: url,
								success: function(res) {
									that.$util.Tips({
										title: '保存成功',
										icon: 'success'
									});
								},
								fail: function(res) {
									that.$util.Tips({
										title: '保存失败'
									});
								}
							});
						}
					}
				});
				// #endif
				// #ifdef H5
				// 创建隐藏的可下载链接
				var eleLink = document.createElement('a');
				eleLink.download = '海报';
				eleLink.href = url;
				// 触发点击
				document.body.appendChild(eleLink);
				eleLink.click();
				// #endif
			},
			qrR(res) {
				this.codeSrc = res
			},
			// #ifdef MP
			savePosterPath: function() {
				let that = this;
				uni.getSetting({
					success(res) {
						if (!res.authSetting['scope.writePhotosAlbum']) {
							uni.authorize({
								scope: 'scope.writePhotosAlbum',
								success() {
									uni.saveImageToPhotosAlbum({
										filePath: that.posterImage,
										success: function(res) {
											that.posterImageClose();
											that.$util.Tips({
												title: '保存成功',
												icon: 'success'
											});
										},
										fail: function(res) {
											that.$util.Tips({
												title: '保存失败'
											});
										}
									});
								}
							});
						} else {
							uni.saveImageToPhotosAlbum({
								filePath: that.posterImage,
								success: function(res) {
									that.posterImageClose();
									that.$util.Tips({
										title: '保存成功',
										icon: 'success'
									});
								},
								fail: function(res) {
									that.$util.Tips({
										title: '保存失败'
									});
								}
							});
						}
					}
				});
			},
			// #endif
		}
	}
</script>

<style>
	.posterCon{
		position: fixed;
		top:0;
		width: 100%;
		left:0;
		height: 100%;
		background-color: var(--view-theme);
		bottom: 0;
		overflow-y: auto;
	}
	.poster-poster .tip {
		height: 80rpx;
		font-size: 26rpx;
		color: #fff;
		text-align: center;
		line-height: 80rpx;
		user-select: none;
	}

	.poster-poster .tip .iconfont {
		font-size: 36rpx;
		vertical-align: -4rpx;
		margin-right: 18rpx;
	}

	.canvas {
		width: 100%;
		height: 1100rpx;
	}

	.poster-poster .pictrue {
		width: 700rpx;
		/* height: 100%; */
		margin: 0 auto 50rpx auto;
		display: flex;
		justify-content: center;
	}

	.poster-poster .pictrue image {
		width: 100%;
		/* height: 100%; */

	}
</style>