Files
DiceCloud/app/imports/client/ui/components/ImageUploadInput.vue
2024-09-03 16:02:56 +02:00

128 lines
3.1 KiB
Vue

<template>
<v-btn
outlined
class="image-upload-button"
v-bind="$attrs"
:color="fileUploadError ? 'error' : undefined"
:disabled="uploadingInProgress"
@click="$refs.hiddenFileInput.click()"
>
<v-icon left>
mdi-file-upload-outline
</v-icon>
<template v-if="fileUploadError">
{{ fileUploadError }}
</template>
<template v-else>
Upload Image
</template>
<v-progress-linear
v-if="uploadingInProgress"
:value="progress"
:indeterminate="uploadIndeterminate"
/>
<input
ref="hiddenFileInput"
type="file"
accept="image/*"
style="display: none;"
@input="inputChange"
>
</v-btn>
</template>
<script lang="js">
import UserImages from '/imports/api/files/userImages/UserImages';
import getThumbHash from '/imports/client/ui/utility/getThumbHash.js'
export default {
data(){return {
progress: 0,
file: undefined,
uploadingInProgress: false,
fileUploadError: undefined,
}},
watch: {
async file(file){
if (!file) return;
let self = this;
let thumbHash = undefined;
// Start the loading state here, because we are loading and processing the image into
// a thumb hash
self.uploadingInProgress = true;
self.uploadIndeterminate = true;
// ThumbHashes are nice to have, but don't break upload if they fail
try {
thumbHash = await getThumbHash(file);
} catch (e) {
console.error('Failed to generate thumbHash')
console.error(e);
}
// Start the image insert process
let uploadInstance = UserImages.insert({
file: file,
chunkSize: 'dynamic',
allowWebWorkers: true,
meta: {
createdAt: new Date(),
thumbHash,
},
}, false);
uploadInstance.on('start', function () {
self.progress = 0;
self.uploadIndeterminate = false;
});
uploadInstance.on('end', function (error, fileObj) {
self.resetState();
self.$emit('uploaded', UserImages.link(fileObj));
});
uploadInstance.on('uploaded', function (error, fileObj) {
self.resetState();
self.progress = 0;
});
uploadInstance.on('error', function (error, fileObj) {
self.resetState();
this.fileUploadError = error.reason || error.message || error.toString();
});
uploadInstance.on('progress', function (progress, fileObj) {
// Update our progress bar with actual progress
self.uploadIndeterminate = false;
self.progress = progress;
});
uploadInstance.start(); // Must manually start the upload
},
},
methods: {
inputChange(e) {
if (!e.target) return;
const { files: selectedFiles } = e.target;
if (!selectedFiles) return;
this.file = selectedFiles[0];
return;
},
resetState() {
// Remove file from input
this.file = undefined;
// stop progress
this.uploadingInProgress = false;
this.progress = 0;
// Remove errors
this.fileUploadError = undefined;
},
},
}
</script>
<style>
</style>