签名优化
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21952c3eef
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@ -1,10 +1,19 @@
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<template>
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<view class="whole canvas-autograph flexc" @touchmove.prevent.stop @wheel.prevent.stop v-show="modelValue">
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<canvas class="scroll-view" id="mycanvas" canvas-id="mycanvas"
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<view
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class="whole canvas-autograph flexc"
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@touchmove.prevent.stop
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@wheel.prevent.stop
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v-show="modelValue"
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>
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<canvas
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class="scroll-view"
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id="mycanvas"
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canvas-id="mycanvas"
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@touchstart="touchstart"
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@touchmove="touchmove"
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@touchend="touchend"
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disable-scroll="true"/>
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disable-scroll="true"
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/>
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<view class="fun-box">
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<div class="hint">
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<text class="rotate">请在下方空白区域横向书写签名</text>
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@ -19,142 +28,112 @@
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<text>取消</text>
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</view>
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</view>
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<!-- 横向提示 -->
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<view v-if="showToast" class="rotate-toast">
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<text class="rotate-text">{{ toastMsg }}</text>
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</view>
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</view>
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</template>
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<script setup>
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/*
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使用如下
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<canvas-autograph v-model="isCanvas" @complete="complete"/>
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// 打开、关闭
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let isCanvas = ref(false)
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// 确认事件
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const complete = e=>{
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console.log(e)
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}
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*/
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import { ref, reactive, watch, getCurrentInstance } from 'vue'
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const emits = defineEmits(['update:modelValue', 'complete'])
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const props = defineProps({
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modelValue: Boolean,
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})
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const _this = getCurrentInstance()
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watch(()=>props.modelValue,e=>{
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// 这里可进行 tabbar 的 显示、隐藏 不要也可以
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// 自己写
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},{
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immediate:true, // 是否默认执行一次 默认为false
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})
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let points = reactive([]) // 路径点集合
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let canvaCtx = reactive(uni.createCanvasContext('mycanvas', _this)) // 创建绘图对象
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//设置画笔样式
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canvaCtx.lineWidth = 6;
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canvaCtx.lineWidth = 6
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canvaCtx.lineCap = 'round'
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canvaCtx.lineJoin = 'round'
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// 是否有签名
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let hasDrawn = ref(false)
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//触摸开始，获取到起点
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const touchstart = e=>{
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// 横向提示
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const showToast = ref(false)
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const toastMsg = ref('')
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const showRotateToast = (msg) => {
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toastMsg.value = msg
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showToast.value = true
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setTimeout(() => (showToast.value = false), 2000)
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}
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// 触摸开始
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const touchstart = (e) => {
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let startX = e.changedTouches[0].x
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let startY = e.changedTouches[0].y
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let startPoint = { X: startX, Y: startY }
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points.push(startPoint);
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//每次触摸开始，开启新的路径
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canvaCtx.beginPath();
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points.push(startPoint)
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canvaCtx.beginPath()
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hasDrawn.value = true // 标记已签名
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}
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//触摸移动，获取到路径点
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const touchmove = e=>{
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// 触摸移动
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const touchmove = (e) => {
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let moveX = e.changedTouches[0].x
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let moveY = e.changedTouches[0].y
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let movePoint = { X: moveX, Y: moveY }
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points.push(movePoint) //存点
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let len = points.length
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if(len>=2){
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points.push(movePoint)
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if (points.length >= 2) {
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draw()
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}
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}
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//绘制路径
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// const draw = ()=> {
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// let point1 = points[0]
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// let point2 = points[1]
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// points.shift()
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// canvaCtx.moveTo(point1.X, point1.Y)
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// canvaCtx.lineTo(point2.X, point2.Y)
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// canvaCtx.stroke()
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// canvaCtx.draw(true)
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// }
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// 绘制
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const draw = () => {
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if (points.length < 2) return;
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canvaCtx.beginPath();
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canvaCtx.moveTo(points[0].X, points[0].Y);
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if (points.length < 2) return
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canvaCtx.beginPath()
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canvaCtx.moveTo(points[0].X, points[0].Y)
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for (let i = 1; i < points.length; i++) {
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canvaCtx.lineTo(points[i].X, points[i].Y);
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canvaCtx.lineTo(points[i].X, points[i].Y)
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}
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canvaCtx.stroke();
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canvaCtx.draw(true);
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// 绘制后清空已绘制点
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points = [points[points.length - 1]]; // 保留最后一个点作为下一次起点
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canvaCtx.stroke()
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canvaCtx.draw(true)
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points = [points[points.length - 1]]
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}
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// 触摸结束，将未绘制的点清空防止对后续路径产生干扰
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const touchend = e=>{
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points = [];
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// 触摸结束
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const touchend = () => {
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points = []
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}
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// 清空画布
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// const clear = ()=>{
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// return uni.getSystemInfo()
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// .then(res=>{
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// canvaCtx.clearRect(0, 0, res.windowWidth, res.windowHeight);
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// canvaCtx.draw(true);
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// return res
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// })
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// .catch(err=>{
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// // console.log(err);
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// })
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// }
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const clear = () => {
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return new Promise((resolve, reject) => {
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uni.createSelectorQuery()
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uni
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.createSelectorQuery()
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.in(_this)
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.select('#mycanvas') // 确保 id 和 canvas 的一致性
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.fields({ size: true, rect: true }, data => {
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.select('#mycanvas')
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.fields({ size: true, rect: true }, (data) => {
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if (!data) {
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reject('Canvas not found')
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return
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}
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const { width, height } = data
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// 真正按 canvas 实际尺寸清除
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canvaCtx.clearRect(0, 0, width, height)
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canvaCtx.draw(true)
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hasDrawn.value = false
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resolve()
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})
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.exec()
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})
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}
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// 确认
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const confirm = () => {
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uni.canvasToTempFilePath({ canvasId: 'mycanvas', }, _this, _this.parent)
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.then(res=>{
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console.log(res.tempFilePath);
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if (!hasDrawn.value) {
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showRotateToast('请先签名再确认')
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return
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}
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uni.canvasToTempFilePath({ canvasId: 'mycanvas' }, _this, _this.parent).then((res) => {
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emits('complete', res.tempFilePath)
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cancel()
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})
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}
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// 取消
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const cancel = () => {
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clear().then(res=>emits('update:modelValue',false))
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clear().then(() => emits('update:modelValue', false))
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}
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</script>
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<style scoped lang="scss">
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@ -169,23 +148,21 @@ const clear = () => {
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.scroll-view {
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width: calc(100% - 120rpx);
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height: 99.6%;
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background-color: #FFFFFF;
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background-color: #ffffff;
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border: 2px solid #333;
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}
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.fun-box {
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position: absolute;
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height: 90rpx;
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right: 0;
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bottom: 0px;
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height: auto;
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display: flex;
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flex-direction: column;
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.fun-box-btn {
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width: 100rpx;
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height: 160rpx;
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color: #FFFFFF;
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color: #ffffff;
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border-radius: 20rpx;
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border: 1rpx solid #C0C0C0;
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border: 1rpx solid #c0c0c0;
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display: flex;
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align-items: center;
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justify-content: center;
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@ -195,14 +172,14 @@ const clear = () => {
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}
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.clear {
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color: #909399;
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background-color: #F4F4F5;
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background-color: #f4f4f5;
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}
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.confirm {
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background-color: #409EFF;
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background-color: #409eff;
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margin: 3px 0;
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}
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.cancel {
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background-color: #F67D7D;
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background-color: #f67d7d;
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}
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.hint {
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width: 100rpx;
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@ -210,19 +187,43 @@ const clear = () => {
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display: flex;
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align-items: center;
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justify-content: center;
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color: #F67D7D;
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color: #f67d7d;
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background: transparent;
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margin-bottom: 150rpx;
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.rotate {
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display: inline-block;
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transform: rotate(90deg);
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transform-origin: center;
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white-space: nowrap;
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font-size: 33rpx;
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}
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}
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}
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}
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/* 横向提示样式 */
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.rotate-toast {
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position: fixed;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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background: rgba(0, 0, 0, 0.75);
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padding: 20rpx;
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border-radius: 24rpx;
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z-index: 999;
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/* 重点调整 */
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width: 100rpx; /* 宽度只需少量，留给旋转文字 */
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min-height: 400rpx; /* 高度拉长，保证横向文字能完整显示 */
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.rotate-text {
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color: #fff;
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font-size: 36rpx;
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transform: rotate(90deg);
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display: inline-block;
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white-space: nowrap; /* 保证一行显示 */
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}
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</style>
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@ -8,7 +8,7 @@
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个人电子签名维护,支持手机拍照、上传图片以及手写签名，推荐使用手写签名，请横向书写签名！
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</div>
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<div class="btns">
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<button class="btn" type="primary" @click="handlePhoto">拍照/上传</button>
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<!-- <button class="btn" type="primary" @click="handlePhoto">拍照/上传</button> -->
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<button class="btn" type="primary" @click="open">手写签名</button>
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</div>
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<miliu-autograph v-model="isCanvas" @complete="complete"></miliu-autograph>
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@ -327,10 +327,10 @@ const uploadSignUrl = async (url) => {
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margin: 10rpx;
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border-radius: 20rpx;
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.btn {
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width: 40%;
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&:first-child {
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width: 100%;
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/* &:first-child {
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margin-right: 20px;
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}
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} */
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}
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}
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.signature-page {
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