Improve SOC for Upload component

src/components/Upload.vue

@@ -1,45 +1,46 @@
 <template>
-  <Card class="upload" v-cloak @drop.prevent="fileDropped" @dragover.prevent>
+  <Card class="dropZone" @dragover.prevent @drop.prevent @drop="selected" @click="$refs.fileInput.click()">
     <template #content>
       <div class="p-text-center">
         <i class="pi pi-upload"></i>
-        <h2>Drag a H.264 encoded MP4 here to start a screen.</h2>
+        <h2>{{ message }}</h2>
       </div>
     </template>
   </Card>
+  <input type="file" hidden="true" ref="fileInput" @change="selected" />
 </template>
 
 <script>
-import { useToast } from 'primevue/usetoast'
-
 export default {
-  setup () {
-    const toast = useToast()
-    function fileDropped (e) {
-      if (e.dataTransfer.files.length !== 1) {
-        toast.add({ severity: 'error', summary: 'Bad file', detail: 'Please select only a single file.', life: 3000 })
-        return
-      }
-
-      const file = e.dataTransfer.files[0]
-      if (!file.name.endsWith('.mp4') || !file.type === 'video/mp4') {
-        toast.add({ severity: 'error', summary: 'Bad file', detail: 'File must be a H.264 encoded MP4.', life: 3000 })
-      }
+  emits: [
+    'selected'
+  ],
+  props: [
+    'message'
+  ],
+  setup (props, context) {
+    const selected = (event) => {
+      const files = event.dataTransfer ? event.dataTransfer.files : event.target.files
+      context.emit('selected', files)
     }
 
     return {
-      fileDropped
+      selected
     }
   }
 }
 </script>
 
-<style>
-.upload {
-  color:  rgba(0,0,0,0.4)
+<style lang="scss">
+.dropZone {
+  cursor: pointer;
+
+  i, h2 {
+    color:  #aaaaaa
+  }
 }
 
 i.pi.pi-upload {
-  font-size: 5em;
+  font-size: 5em
 }
 </style>

src/views/Host.vue

@@ -1,14 +1,38 @@
 <template>
   <div class="p-p-6">
     <h1 class="p-my-0">Host</h1>
-    <Upload />
+    <Upload v-if="!file" message="Drag a H.264 encoded MP4 here to start a screen." @selected="filesSelected" />
   </div>
 </template>
 
 <script>
+import { useToast } from 'primevue/usetoast'
+import { ref } from 'vue'
+
 export default {
   setup () {
+    const toast = useToast()
 
+    const file = ref()
+
+    const filesSelected = (files) => {
+      if (files?.length !== 1) {
+        toast.add({ severity: 'error', summary: 'Bad file input', detail: 'You must select only one file.', life: 3000 })
+        return
+      }
+
+      if (!files[0].name.endsWith('.mp4') || files[0].type !== 'video/mp4') {
+        toast.add({ severity: 'error', summary: 'Bad file input', detail: 'Only H.264 encoded MP4s are supported.', life: 3000 })
+        return
+      }
+
+      file.value = files[0]
+    }
+
+    return {
+      filesSelected,
+      file
+    }
   }
 }
 </script>