File size: 3,107 Bytes
2b06d1d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | <script lang="ts">
import { createEventDispatcher } from "svelte";
import { blobToBase64 } from "./utils";
export let filetype: string | null = null;
export let include_file_metadata = true;
export let dragging = false;
export let boundedheight = true;
export let center = true;
export let flex = true;
export let file_count = "single";
export let disable_click = false;
export let parse_to_data_url = true;
let hidden_upload: HTMLInputElement;
const dispatch = createEventDispatcher();
function updateDragging(): void {
dragging = !dragging;
}
function openFileUpload(): void {
if (disable_click) return;
hidden_upload.value = "";
hidden_upload.click();
}
async function loadFiles(files: FileList): Promise<void> {
let _files: File[] = Array.from(files);
if (!files.length || !window.FileReader) {
return;
}
if (file_count === "single") {
_files = [files[0]];
}
if (include_file_metadata) {
var file_metadata: { name: string; size: number }[] = _files.map((f) => ({
name: f.name,
size: f.size,
}));
}
var load_file_data = [];
var file_data: string[] | File[] = [];
if (parse_to_data_url) {
file_data = await Promise.all(_files.map((f) => blobToBase64(f)));
} else {
file_data = _files;
}
if (include_file_metadata) {
if (parse_to_data_url) {
load_file_data = file_data.map((data, i) => ({
data,
...file_metadata[i],
}));
} else {
load_file_data = file_data.map((data, i) => ({
data: "",
blob: data,
...file_metadata[i],
}));
}
} else {
load_file_data = file_data;
}
dispatch(
"load",
file_count === "single" ? load_file_data[0] : load_file_data
);
}
async function loadFilesFromUpload(e: Event): Promise<void> {
const target = e.target as HTMLInputElement;
if (!target.files) return;
await loadFiles(target.files);
}
async function loadFilesFromDrop(e: DragEvent): Promise<void> {
dragging = false;
if (!e.dataTransfer?.files) return;
await loadFiles(e.dataTransfer.files);
}
</script>
<button
class:center
class:boundedheight
class:flex
on:drag|preventDefault|stopPropagation
on:dragstart|preventDefault|stopPropagation
on:dragend|preventDefault|stopPropagation
on:dragover|preventDefault|stopPropagation
on:dragenter|preventDefault|stopPropagation
on:dragleave|preventDefault|stopPropagation
on:drop|preventDefault|stopPropagation
on:click={openFileUpload}
on:drop={loadFilesFromDrop}
on:dragenter={updateDragging}
on:dragleave={updateDragging}
>
<slot />
<input
type="file"
bind:this={hidden_upload}
on:change={loadFilesFromUpload}
accept={filetype}
multiple={file_count === "multiple" || undefined}
webkitdirectory={file_count === "directory" || undefined}
mozdirectory={file_count === "directory" || undefined}
/>
</button>
<style>
button {
cursor: pointer;
width: var(--size-full);
height: var(--size-full);
}
.center {
display: flex;
justify-content: center;
}
.flex {
display: flex;
justify-content: center;
align-items: center;
}
input {
display: none;
}
</style>
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