@zag-js/file-upload
Version:
Core logic for the file-upload widget implemented as a state machine
267 lines (265 loc) • 9.08 kB
JavaScript
;
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
// If the importer is in node compatibility mode or this is not an ESM
// file that has been converted to a CommonJS file using a Babel-
// compatible transform (i.e. "__esModule" has not been set), then set
// "default" to the CommonJS "module.exports" for node compatibility.
isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
// src/file-upload.machine.ts
var file_upload_machine_exports = {};
__export(file_upload_machine_exports, {
machine: () => machine
});
module.exports = __toCommonJS(file_upload_machine_exports);
var import_core = require("@zag-js/core");
var import_dom_query = require("@zag-js/dom-query");
var import_file_utils = require("@zag-js/file-utils");
var import_utils = require("@zag-js/utils");
var dom = __toESM(require("./file-upload.dom.js"));
var import_file_upload = require("./file-upload.utils.js");
var machine = (0, import_core.createMachine)({
props({ props }) {
return {
minFileSize: 0,
maxFileSize: Number.POSITIVE_INFINITY,
maxFiles: 1,
allowDrop: true,
preventDocumentDrop: true,
defaultAcceptedFiles: [],
...props,
translations: {
dropzone: "dropzone",
itemPreview: (file) => `preview of ${file.name}`,
deleteFile: (file) => `delete file ${file.name}`,
...props.translations
}
};
},
initialState() {
return "idle";
},
context({ prop, bindable, getContext }) {
return {
acceptedFiles: bindable(() => ({
defaultValue: prop("defaultAcceptedFiles"),
value: prop("acceptedFiles"),
isEqual: (a, b) => a.length === b?.length && a.every((file, i) => (0, import_file_utils.isFileEqual)(file, b[i])),
hash(value) {
return value.map((file) => `${file.name}-${file.size}`).join(",");
},
onChange(value) {
const ctx = getContext();
prop("onFileAccept")?.({ files: value });
prop("onFileChange")?.({ acceptedFiles: value, rejectedFiles: ctx.get("rejectedFiles") });
}
})),
rejectedFiles: bindable(() => ({
defaultValue: [],
isEqual: (a, b) => a.length === b?.length && a.every((file, i) => (0, import_file_utils.isFileEqual)(file.file, b[i].file)),
onChange(value) {
const ctx = getContext();
prop("onFileReject")?.({ files: value });
prop("onFileChange")?.({ acceptedFiles: ctx.get("acceptedFiles"), rejectedFiles: value });
}
})),
transforming: bindable(() => ({
defaultValue: false
}))
};
},
computed: {
acceptAttr: ({ prop }) => (0, import_file_utils.getAcceptAttrString)(prop("accept")),
multiple: ({ prop }) => prop("maxFiles") > 1
},
watch({ track, context, action }) {
track([() => context.hash("acceptedFiles")], () => {
action(["syncInputElement"]);
});
},
on: {
"FILES.SET": {
actions: ["setFiles"]
},
"FILE.SELECT": {
actions: ["setEventFiles"]
},
"FILE.DELETE": {
actions: ["removeFile"]
},
"FILES.CLEAR": {
actions: ["clearFiles"]
},
"REJECTED_FILES.CLEAR": {
actions: ["clearRejectedFiles"]
}
},
effects: ["preventDocumentDrop"],
states: {
idle: {
on: {
OPEN: {
actions: ["openFilePicker"]
},
"DROPZONE.CLICK": {
actions: ["openFilePicker"]
},
"DROPZONE.FOCUS": {
target: "focused"
},
"DROPZONE.DRAG_OVER": {
target: "dragging"
}
}
},
focused: {
on: {
"DROPZONE.BLUR": {
target: "idle"
},
OPEN: {
actions: ["openFilePicker"]
},
"DROPZONE.CLICK": {
actions: ["openFilePicker"]
},
"DROPZONE.DRAG_OVER": {
target: "dragging"
}
}
},
dragging: {
on: {
"DROPZONE.DROP": {
target: "idle",
actions: ["setEventFiles"]
},
"DROPZONE.DRAG_LEAVE": {
target: "idle"
}
}
}
},
implementations: {
effects: {
preventDocumentDrop({ prop, scope }) {
if (!prop("preventDocumentDrop")) return;
if (!prop("allowDrop")) return;
if (prop("disabled")) return;
const doc = scope.getDoc();
const onDragOver = (event) => {
event?.preventDefault();
};
const onDrop = (event) => {
if ((0, import_dom_query.contains)(dom.getRootEl(scope), (0, import_dom_query.getEventTarget)(event))) return;
event.preventDefault();
};
return (0, import_utils.callAll)((0, import_dom_query.addDomEvent)(doc, "dragover", onDragOver, false), (0, import_dom_query.addDomEvent)(doc, "drop", onDrop, false));
}
},
actions: {
syncInputElement({ scope, context }) {
queueMicrotask(() => {
const inputEl = dom.getHiddenInputEl(scope);
if (!inputEl) return;
(0, import_file_upload.setInputFiles)(inputEl, context.get("acceptedFiles"));
const win = scope.getWin();
inputEl.dispatchEvent(new win.Event("change", { bubbles: true }));
});
},
openFilePicker({ scope }) {
(0, import_dom_query.raf)(() => {
dom.getHiddenInputEl(scope)?.click();
});
},
setFiles(params) {
const { computed, context, event } = params;
const { acceptedFiles, rejectedFiles } = (0, import_file_upload.getEventFiles)(params, event.files);
context.set(
"acceptedFiles",
computed("multiple") ? acceptedFiles : acceptedFiles.length > 0 ? [acceptedFiles[0]] : []
);
context.set("rejectedFiles", rejectedFiles);
},
setEventFiles(params) {
const { computed, context, event, prop } = params;
const currentAcceptedFiles = context.get("acceptedFiles");
const currentRejectedFiles = context.get("rejectedFiles");
const { acceptedFiles, rejectedFiles } = (0, import_file_upload.getEventFiles)(
params,
event.files,
currentAcceptedFiles,
currentRejectedFiles
);
const set = (files) => {
if (computed("multiple")) {
context.set("acceptedFiles", (prev) => [...prev, ...files]);
context.set("rejectedFiles", rejectedFiles);
return;
}
if (files.length) {
context.set("acceptedFiles", [files[0]]);
context.set("rejectedFiles", rejectedFiles);
return;
}
if (rejectedFiles.length) {
context.set("acceptedFiles", context.get("acceptedFiles"));
context.set("rejectedFiles", rejectedFiles);
}
};
const transform = prop("transformFiles");
if (transform) {
context.set("transforming", true);
transform(acceptedFiles).then(set).catch((err) => {
(0, import_utils.warn)(`[zag-js/file-upload] error transforming files
${err}`);
}).finally(() => {
context.set("transforming", false);
});
} else {
set(acceptedFiles);
}
},
removeFile({ context, event }) {
if (event.itemType === "rejected") {
const rejectedFiles = context.get("rejectedFiles").filter((item) => !(0, import_file_utils.isFileEqual)(item.file, event.file));
context.set("rejectedFiles", rejectedFiles);
} else {
const files = context.get("acceptedFiles").filter((file) => !(0, import_file_utils.isFileEqual)(file, event.file));
context.set("acceptedFiles", files);
}
},
clearRejectedFiles({ context }) {
context.set("rejectedFiles", []);
},
clearFiles({ context }) {
context.set("acceptedFiles", []);
context.set("rejectedFiles", []);
}
}
}
});
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
machine
});