frontend-web/src/views/CameraCapture.vue
2022-01-25 14:46:49 +01:00

358 lines
8.8 KiB
Vue

<template>
<n-config-provider :theme="darkTheme">
<div id="all">
<div id="group_select">
<n-select v-model:value="selected_group" :options="groups" size="large" />
<n-button secondary type="primary" @click="showAddGroupModal = true" size="large">
<n-icon><CreateNewFolderRound /></n-icon>
</n-button>
</div>
<div id="camera">
<div id="prompt_select" v-show="!selected_group">
<n-icon size="4em"><HandPointUp/></n-icon><br/>
<h1 class="text-3xl font-bold">Please select a photo group</h1>
<p class="text-xl font-bold">(or create a new one)</p>
</div>
<n-spin :show="isCameraLoading || isPhotoTaken" v-show="selected_group">
<div id="camera_preview">
<video ref="camera" autoplay></video>
<canvas v-show="false" id="photoTaken" ref="canvas" width="100" height="100"></canvas>
</div>
</n-spin>
</div>
<div id="take_photo">
<n-space justify-content="center">
<n-button
type="primary" round size="large"
:disabled="!selected_group || isPhotoTaken || !isCameraCreated"
@click="takePhoto"
>
Take Photo
</n-button>
</n-space>
</div>
</div>
<n-modal
v-model:show="showAddGroupModal"
:mask-closable="true"
transform-origin="center"
preset="card"
title="Add new Group"
:bordered="false"
size="huge">
<n-input placeholder="Enter group name" size="large" v-model:value="new_group_name" />
<template #footer>
<n-space justify-content="end">
<n-button size="large" @click="showAddGroupModal = false">Cancel</n-button>
<n-button type="primary" size="large" @click="addNewGroup">Add Group</n-button>
</n-space>
</template>
</n-modal>
<n-modal
v-model:show="showPhotoTakenModal"
:mask-closable="false"
transform-origin="center"
preset="card"
:title="'Upload Photo to '+selected_group_label"
:bordered="false"
size="huge">
<n-space justify-content="center">
<n-image
:src="photo.src"
:width="photo.width*0.75"
/>
</n-space>
<template #footer>
<n-space justify-content="end">
<n-button size="large" @click="showPhotoTakenModal = false; isPhotoTaken = false">Back</n-button>
<n-button type="primary" size="large" @click="uploadPhoto" :loading="isUploading">Upload</n-button>
</n-space>
</template>
</n-modal>
</n-config-provider>
</template>
<script>
import { useMeta } from 'vue-meta'
import { useMessage } from 'naive-ui'
import {darkTheme} from 'naive-ui'
import CreateNewFolderRound from '@vicons/material/CreateNewFolderRound'
import HandPointUp from '@vicons/fa/HandPointUp'
import { getPhotoGroups, addNewPhotoGroup, addNewPhoto, cropPhoto } from '@/api'
export default {
components: {
CreateNewFolderRound,
HandPointUp,
},
setup() {
useMeta({
title: 'Capture new Photo',
})
const message = useMessage()
return { message }
},
data() {
return {
darkTheme,
groups: [],
selected_group: null,
showAddGroupModal: false,
new_group_name: '',
isCameraCreated: false,
isCameraLoading: true,
isPhotoTaken: false,
photo: {
width: 0,
height: 0,
src: null
},
stream: {
width: 0,
height: 0,
},
showPhotoTakenModal: false,
isUploading: false,
}
},
beforeMount() {
this.fetchPhotoGroups()
},
mounted() {
window.scrollTo(0, 1)
},
watch: {
selected_group: function () {
if (this.isCameraCreated)
return
this.startCamera()
},
},
computed: {
selected_group_label() {
if (this.selected_group !== null && this.groups.length > 0) {
return this.groups.filter(group => group.value === this.selected_group)[0].label
}
return ''
},
},
methods: {
fetchPhotoGroups() {
this.groups = []
getPhotoGroups().then((response) => {
let data = response.data
data = this.sortPhotoGroupsByDate(data)
for(const data_idx in data) {
this.groups.push({
label: data[data_idx].name,
value: data[data_idx].id,
})
}
}).catch((error)=>{
this.message.error('There was an error while fetching photo groups: '+error)
})
},
sortPhotoGroupsByDate(groups) {
if (groups !== null && groups.length > 0) {
groups = [...groups].sort((a,b) => {
if (a.date === null) return 1
if (b.date === null) return -1
return a.date > b.date ? -1 : 1
})
// move group with id 1 ("unsorted"-group) to front
let index = groups.indexOf(groups.filter(g=>g.id==1)[0])
groups.unshift(groups.splice(index, 1)[0])
return groups
}
return []
},
addNewGroup() {
if (this.new_group_name.length == 0) {
this.message.error('Please enter a new group name')
return
}
let today = new Date()
let dd = String(today.getDate()).padStart(2, '0')
let mm = String(today.getMonth() + 1).padStart(2, '0')
let yyyy = today.getFullYear()
today = yyyy + '-' + mm + '-' + dd
addNewPhotoGroup(this.new_group_name, today).then((response) => {
this.message.success('Added group '+this.new_group_name)
this.fetchPhotoGroups()
this.showAddGroupModal = false
this.selected_group = response.data.id
}).catch((error)=>{
this.message.error('There was an error while adding the group: '+error)
}).finally(() => {
this.new_group_name = ''
})
},
startCamera() {
this.isCameraLoading = true
const constraints = (window.constraints = {
audio: false,
video: {
facingMode: 'environment',
width: { ideal: 4096 },
height: { ideal: 2160 },
}
})
navigator.mediaDevices.getUserMedia(constraints).then((stream) => {
this.isCameraLoading = false
this.$refs.camera.srcObject = stream
this.isCameraCreated = true
let stream_settings = stream.getVideoTracks()[0].getSettings()
this.stream.width = stream_settings.width
this.stream.height = stream_settings.height
this.photo.width = document.getElementById('camera_preview').offsetWidth
this.photo.height = document.getElementById('camera_preview').offsetHeight
if (this.stream.width > this.stream.height) {
this.$refs.camera.width = this.photo.width
} else {
let ratio = this.photo.height / this.stream.height
this.$refs.camera.width = this.stream.width * ratio
}
}).catch(error => {
this.message.error('Cannot load device camera! '+error)
})
},
takePhoto() {
this.isPhotoTaken = true
setTimeout(() => {
this.photo.height = document.getElementById('camera_preview').offsetHeight
this.$refs.canvas.width = this.stream.width
this.$refs.canvas.height = this.stream.height
const context = this.$refs.canvas.getContext('2d')
context.drawImage(
this.$refs.camera,
0, 0,
this.stream.width,
this.stream.height)
this.photo.src = this.$refs.canvas.toDataURL('image/png')//.replace('image/png', 'image/octet-stream')
this.showPhotoTakenModal = true
}, 50)
},
uploadPhoto() {
this.isUploading = true
const dataURLtoFile = (dataurl, filename) => {
const arr = dataurl.split(',')
const mime = arr[0].match(/:(.*?);/)[1]
const bstr = atob(arr[1])
let n = bstr.length
const u8arr = new Uint8Array(n)
while (n) {
u8arr[n - 1] = bstr.charCodeAt(n - 1)
n -= 1 // to make eslint happy
}
return new File([u8arr], filename, { type: mime })
}
const file = dataURLtoFile(this.photo.src, 'upload.png')
addNewPhoto(file, null, this.selected_group).then((response) => {
this.message.success('Done!')
this.isPhotoTaken = false
this.showPhotoTakenModal = false
this.isUploading = false
setTimeout(() => {
cropPhoto(response.data.id, 'auto').then(()=>{
console.log('photo has been cropped')
}).catch((error)=>{
console.error(error)
})
}, 100)
}).catch((error) => {
this.message.error('There was an error uploading the photo: ' + error)
})
},
},
}
</script>
<style scoped>
html, body {
margin: 0;
padding: 0;
overflow: hidden;
height: 100vh;
}
* {
overflow: hidden;
}
#all {
background-color: #111;
width: 100vw;
height: 100vh;
display: flex;
flex-direction: column;
flex-wrap: nowrap;
overflow: hidden;
color: white;
margin: 0;
padding: 0;
}
#camera_preview {
height: 75vh;
width: 100%;
}
#group_select {
display: flex;
height: 7.5vh;
}
#prompt_select {
display: flex;
flex-direction: column;
text-align: center;
margin-top: 25vh;
}
#prompt_select .n-icon {
margin: auto;
}
#take_photo {
height: 15vh;
background-color: #222;
display: flex;
justify-content: center;
bottom: 0;
position: fixed;
width: 100%;
}
#take_photo .n-button {
margin-top: 5vh;
}
</style>