load / save scene wip

src/App.vue

@@ -13,8 +13,15 @@
         <input v-model="title" placeholder="Title">
         <button @click="add">Add Scene</button>
     </div>
-        
+
-        <SceneEntry v-for="scene in scenes" :title="scene"/>
+    <div class="load-scene">
+        <label >Load scene</label>
+        <input type="file" multiple @change="load">
+    </div>
+
+
+
+        <SceneEntry v-for="scene in scenes" :title="scene.title" :series="scene.series"/>
 
     </main>
 </template>
@@ -27,10 +34,32 @@ import {ref} from 'vue'
 const scenes = ref([])
 const title = ref('')
 const add = () => {
-    scenes.value.push(title.value)
+    scenes.value.push({
+        title: title.value,
+        series: []
+        })
     title.value = ""
     }
 
+const load = (e) => {
+    let files = e.target.files
+    new Promise.all(files.forEach(async (file) =>{
+       const reader = new FileReader()
+       reader.readAsText(file)
+       reader.onloadend = (e) => {
+        if (e.target.readyState == FileReader.DONE) {
+           try {
+            let scene = JSON.parse(reader.result)
+            scenes.value.push(scene)
+           } catch (e) {
+            console.log(e)
+           }
+        }
+       }
+    })
+    )
+}
+
 </script>
 
 <style>

src/components/AddShot.vue

@@ -1,7 +1,7 @@
 <template>
     <div class="add-shot">
-        <FileLoader class="cover" @upload="getImg" @filename="setTitle" :key="key"></FileLoader>
+        <FileLoader class="cover" @upload="getImg" @file="setFile" :key="key"></FileLoader>
-        <div class="meta">
+        <div class="meta" v-if="file">
             <input v-model="title" placeholder="Title">
             <textarea v-model="description" placeholder="Description"></textarea>
             <button class="insert" @click="add">Add</button>
@@ -12,6 +12,8 @@
     import FileLoader from '../components/FileLoader.vue'
     import {ref} from 'vue'
 
+
+    const file = ref(null)
     const title = ref('')
     const description = ref('')
     const img = ref('')
@@ -22,13 +24,17 @@
 
     const getImg = (e) => img.value = e
     
-    const setTitle = e => title.value = e
+    const setFile = e => {
+        file.value = e
+        }
 
     const add = () => {
         emits('add', {
                 title: title.value, 
                 description: description.value, 
-                img: img.value}
+                img: img.value,
+                file: file.value
+                    }
                 )
         reset()
     }
@@ -38,7 +44,6 @@
         description.value = ""
         img.value = ""
         key.value += 1
-
     }
 
 </script>

src/components/FileLoader.vue

@@ -15,18 +15,17 @@
 <script setup>
 
     import {ref, computed} from 'vue'
-    const emit = defineEmits(['upload', 'filename'])
+    const emit = defineEmits(['upload', 'file'])
 
-
+    const dropFile = ref([])
-    const file = ref([])
     const fileType = ref("")
     const thumb = ref(null)
     const loading = ref(false)
 
 
     const dragFile = (e) => {
-        file.value = e.dataTransfer.files[0]
+        dropFile.value = e.dataTransfer.files[0]
-        createPreview(file.value)
+        createPreview(dropFile.value)
     }
 
     const container = computed(()=>{
@@ -39,9 +38,6 @@
         
         loading.value = true
         
-        const fileName = file.name
-        emit('filename', fileName)
-
         // get file type
         fileType.value = file.type.toLowerCase().substr(0, file.type.indexOf("/"))
 
@@ -55,6 +51,8 @@
             fileToRead = await videoSnapshot(filePath)
             filePath = (window.URL || window.webkitURL).createObjectURL(fileToRead)
         }
+
+        emit('file', fileToRead)
         
         const reader = new FileReader()
         reader.readAsDataURL(fileToRead)
@@ -65,6 +63,7 @@
         }
     }
 
+    // TODO: scale image to thumb size
     const imageSnapshot = (url) => {
         thumb.value.src = url
         emit('upload', url)
@@ -80,12 +79,12 @@
 
             const snapshot = async () => {
                 let canvas = document.createElement('canvas')
-                canvas.width = 1280
+                canvas.width = 640
-                canvas.height = 720
+                canvas.height = 360
                 let ctx = canvas.getContext('2d')
 
                 ctx.drawImage(video, 0, 0, canvas.width, canvas.height)
-                thumb.value.src = canvas.toDataURL('image/png')
+                thumb.value.src = canvas.toDataURL('image/jpeg')
                 loading.value = false
                 video.removeEventListener('canplay', snapshot)
                 let file = await dataUrlToFile(thumb.value.src, 'snapshot')
@@ -101,7 +100,7 @@
         // in order not to have super long src urls for snapshot in the DOM
         const res = await fetch(dataUrl);
         const blob = await res.blob();
-        return new File([blob], fileName, { type: 'image/png' });
+        return new File([blob], fileName, { type: 'image/jpeg' });
     }
 
 </script>

src/components/SceneEntry.vue

@@ -33,6 +33,10 @@
            </template>
     </draggable>
 
+
+    <button @click="serialize">Export scene</button>
+
+
     </section>
 
 
@@ -46,9 +50,13 @@ import ShotEntry from '../components/ShotEntry.vue'
 
 import {ref, computed} from 'vue'
 
-const props = defineProps(['title'])
+const props = defineProps({
+    title: String,
+    series: Array
+    })
+
+const shots = ref(props.series || [])
 
-const shots = ref([])
 const drag = ref(false)
 
 const dragOptions = computed(()=> {
@@ -68,8 +76,40 @@ const remove = (index) => {
     shots.value.splice(index, 1)
 }
 
+const serialize = async () => {
+
+    let series = await Promise.all(shots.value.map(async (shot) => {
+        let img = await blobToBase64(shot.file)
+        return {
+            title: shot.title, 
+            description: shot.description, 
+            img: img
+            }
+    }))
+
+    download(
+        JSON.stringify({title: props.title, series}), 
+        `${props.title}.json`, 
+        'text/plain'
+        )
+}
+
 
+const blobToBase64 = (blob) => {
+    return new Promise((resolve, _) => {
+        const reader = new FileReader()
+        reader.onloadend = () => resolve(reader.result);
+        reader.readAsDataURL(blob)
+    })
+}
 
+function download(content, fileName, contentType) {
+    var a = document.createElement("a");
+    var file = new Blob([content], {type: contentType});
+    a.href = URL.createObjectURL(file);
+    a.download = fileName;
+    a.click();
+}
 
 </script>