wangqing
4 years ago
17 changed files with 611 additions and 291 deletions
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Before Width: | Height: | Size: 44 KiB After Width: | Height: | Size: 194 KiB |
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After Width: | Height: | Size: 2.0 KiB |
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After Width: | Height: | Size: 1.3 KiB |
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Before Width: | Height: | Size: 1.2 KiB After Width: | Height: | Size: 1.6 KiB |
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After Width: | Height: | Size: 592 B |
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Before Width: | Height: | Size: 10 KiB After Width: | Height: | Size: 20 KiB |
@ -0,0 +1,77 @@ |
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*, |
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*::before, |
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*::after { |
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box-sizing: border-box; |
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} |
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.signature-pad { |
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position: relative; |
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display: -webkit-box; |
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display: -ms-flexbox; |
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display: flex; |
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-webkit-box-orient: vertical; |
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-webkit-box-direction: normal; |
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-ms-flex-direction: column; |
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flex-direction: column; |
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font-size: 10px; |
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width: 100%; |
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height: 100%; |
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max-width: 700px; |
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max-height: 460px; |
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border: 1px solid #e8e8e8; |
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background-color: #fff; |
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box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.08) inset; |
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border-radius: 4px; |
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padding: 16px; |
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} |
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.signature-pad::before, |
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.signature-pad::after { |
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position: absolute; |
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z-index: -1; |
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content: ""; |
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width: 40%; |
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height: 10px; |
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bottom: 10px; |
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background: transparent; |
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box-shadow: 0 8px 12px rgba(0, 0, 0, 0.4); |
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} |
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.signature-pad::before { |
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left: 20px; |
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-webkit-transform: skew(-3deg) rotate(-3deg); |
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transform: skew(-3deg) rotate(-3deg); |
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} |
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.signature-pad::after { |
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right: 20px; |
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-webkit-transform: skew(3deg) rotate(3deg); |
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transform: skew(3deg) rotate(3deg); |
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} |
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.signature-pad--body { |
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position: relative; |
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-webkit-box-flex: 1; |
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-ms-flex: 1; |
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flex: 1; |
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border: 1px solid #f4f4f4; |
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} |
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.signature-pad--body canvas { |
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position: absolute; |
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left: 0; |
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top: 0; |
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width: 100%; |
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height: 100%; |
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border-radius: 4px; |
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box-shadow: 0 0 5px rgba(0, 0, 0, 0.02) inset; |
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} |
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.signature-pad--footer { |
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color: #c3c3c3; |
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text-align: center; |
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font-size: 1.2em; |
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margin-top: 8px; |
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} |
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.signature-pad--actions { |
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display: -webkit-box; |
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display: -ms-flexbox; |
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display: flex; |
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-webkit-box-pack: justify; |
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-ms-flex-pack: justify; |
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justify-content: space-between; |
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margin-top: 8px; |
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} |
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@ -0,0 +1,125 @@ |
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<template> |
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<div id="signature-pad" class="signature-pad"> |
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<div class="signature-pad--body"> |
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<canvas v-show="!signImageUrl" class="canvasId" style="border: 2px dashed #f7f7f7;" /> |
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</div> |
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<img v-if="signImageUrl" :src="signImageUrl"> |
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<p class="desc-text">请在上面区域完成签名 然后点击确"确认"按钮</p> |
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<div v-if="!signImageUrl"> |
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<el-button plain size="mini" type="danger" @click="clear">清除</el-button> |
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<el-button plain size="mini" type="warning" @click="undo">回撤</el-button> |
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<el-button size="mini" type="success" @click="savePng">确认</el-button> |
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</div> |
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<div v-if="signImageUrl"> |
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<el-button size="mini" type="primary" @click="reSign">重签</el-button> |
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</div> |
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</div> |
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</template> |
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|
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<script> |
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import SignaturePad from 'signature_pad' |
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|
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export default { |
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name: 'SignPad', |
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components: {}, |
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data() { |
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return { |
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signaturePad: null, |
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canvas: null, |
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signImageUrl: '', |
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config: { |
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minWidth: 1, |
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maxWidth: 3, |
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penColor: 'rgb(66, 133, 244)' |
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} |
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} |
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}, |
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mounted() { |
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this.init() |
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window.onresize = () => { |
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return (() => { |
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this.resizeCanvas() |
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})() |
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} |
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this.resizeCanvas() |
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}, |
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methods: { |
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resizeCanvas() { |
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console.log('resizeCanvas') |
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let canvas = this.canvas |
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// When zoomed out to less than 100%, for some very strange reason, |
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// some browsers report devicePixelRatio as less than 1 |
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// and only part of the canvas is cleared then. |
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let ratio = Math.max(window.devicePixelRatio || 1, 1) |
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// This part causes the canvas to be cleared |
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canvas.width = canvas.offsetWidth * ratio |
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canvas.height = canvas.offsetHeight * ratio |
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canvas.getContext('2d').scale(ratio, ratio) |
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|
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// This library does not listen for canvas changes, so after the canvas is automatically |
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// cleared by the browser, SignaturePad#isEmpty might still return false, even though the |
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// canvas looks empty, because the internal data of this library wasn't cleared. To make sure |
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// that the state of this library is consistent with visual state of the canvas, you |
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// have to clear it manually. |
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this.signaturePad.clear() |
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}, |
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init() { |
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this.canvas = document.querySelector('.canvasId') |
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let canvas = this.canvas |
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this.signaturePad = new SignaturePad(canvas, this.config) |
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// canvas.height = 300 |
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// canvas.width = 500 |
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}, |
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clear() { |
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this.signaturePad.clear() |
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}, |
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undo() { |
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let data = this.signaturePad.toData() |
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if (data) { |
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data.pop() // remove the last dot or line |
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this.signaturePad.fromData(data) |
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} |
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}, |
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savePng() { |
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if (this.signaturePad.isEmpty()) { |
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this.msgError('请先填写') |
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return |
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} |
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let data = this.signaturePad.toDataURL('image/png') |
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let file = this.dataURLtoFile(data, `${new Date().getTime()}.png`) |
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let param = new FormData() // 创建form对象 |
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param.append('file', file) // 通过append向form对象添加数据 |
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let config = { |
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headers: {'Content-Type': 'multipart/form-data'} |
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} |
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this.$api.post('/project/file/upload/77f1648542af4caf98deb8345a3d0406', param, config).then(res => { |
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this.signImageUrl = res.data |
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}) |
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}, |
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reSign() { |
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this.signImageUrl = '' |
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this.signaturePad.clear() |
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}, |
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dataURLtoFile(dataurl, filename) { |
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// 获取到base64编码 |
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const arr = dataurl.split(',') |
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// 将base64编码转为字符串 |
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const bstr = window.atob(arr[1]) |
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let n = bstr.length |
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const u8arr = new Uint8Array(n) // 创建初始化为0的，包含length个元素的无符号整型数组 |
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while (n--) { |
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u8arr[n] = bstr.charCodeAt(n) |
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} |
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return new File([u8arr], filename, { |
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type: 'image/png' |
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}) |
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} |
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} |
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} |
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</script> |
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<style scoped> |
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@import "index.css"; |
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.sign-pad-container { |
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padding: 1px; |
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} |
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</style> |
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@ -1,46 +1,25 @@ |
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<template> |
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<div> |
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<image-select v-model="radio" :options="options" :multiple="false" /> |
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<el-radio-group v-model="radio"> |
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<el-radio :label="3">备选项</el-radio> |
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<el-radio :label="6">备选项</el-radio> |
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<el-radio :label="9">备选项</el-radio> |
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</el-radio-group> |
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<sign-pad /> |
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</div> |
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</template> |
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|
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<script> |
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import SignPad from '@/components/form/SignPad' |
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|
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export default { |
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name: 'App', |
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components: { |
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SignPad |
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}, |
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data() { |
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return { |
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options: [{ |
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'label': '选项一', |
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'value': 1, |
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'image': 'https://freebrio.oss-cn-shanghai.aliyuncs.com/05f1fb3e58764a48a5094f0bc9351bd3.png' |
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}, { |
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'label': '选项二', |
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'value': 2, |
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'image': 'https://freebrio.oss-cn-shanghai.aliyuncs.com/062cf61ad5724ac3bc99f0341b3770da.png' |
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}], |
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radio: [1] |
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} |
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}, |
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mounted() { |
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|
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}, |
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methods: { |
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success(params) { |
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// eslint-disable-next-line no-debugger |
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// params 返回的二次验证参数, 和登录参数一起回传给登录接口，方便后台进行二次验证 |
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console.log(params) |
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}, |
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useVerify() { |
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this.$refs.verify.show() |
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} |
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|
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} |
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} |
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</script> |
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|
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