ha-frontend/src/components/ha-file-upload.ts

314 lines
9.1 KiB
TypeScript

import "@material/mwc-linear-progress/mwc-linear-progress";
import { mdiDelete, mdiFileUpload } from "@mdi/js";
import { LitElement, PropertyValues, TemplateResult, css, html } from "lit";
import { customElement, property, query, state } from "lit/decorators";
import { classMap } from "lit/directives/class-map";
import { fireEvent } from "../common/dom/fire_event";
import { HomeAssistant } from "../types";
import "./ha-button";
import "./ha-icon-button";
import { blankBeforePercent } from "../common/translations/blank_before_percent";
import { ensureArray } from "../common/array/ensure-array";
import { bytesToString } from "../util/bytes-to-string";
declare global {
interface HASSDomEvents {
"file-picked": { files: File[] };
}
}
@customElement("ha-file-upload")
export class HaFileUpload extends LitElement {
@property({ attribute: false }) public hass?: HomeAssistant;
@property() public accept!: string;
@property() public icon?: string;
@property() public label?: string;
@property() public secondary?: string;
@property() public supports?: string;
@property() public value?: File | File[] | FileList | string;
@property({ type: Boolean }) private multiple = false;
@property({ type: Boolean, reflect: true }) public disabled: boolean = false;
@property({ type: Boolean }) private uploading = false;
@property({ type: Number }) private progress?: number;
@property({ type: Boolean, attribute: "auto-open-file-dialog" })
private autoOpenFileDialog = false;
@state() private _drag = false;
@query("#input") private _input?: HTMLInputElement;
protected firstUpdated(changedProperties: PropertyValues) {
super.firstUpdated(changedProperties);
if (this.autoOpenFileDialog) {
this._openFilePicker();
}
}
public render(): TemplateResult {
return html`
${this.uploading
? html`<div class="container">
<div class="row">
<span class="header"
>${this.value
? this.hass?.localize(
"ui.components.file-upload.uploading_name",
{ name: this.value }
)
: this.hass?.localize(
"ui.components.file-upload.uploading"
)}</span
>
${this.progress
? html`<span class="progress"
>${this.progress}${blankBeforePercent(
this.hass!.locale
)}%</span
>`
: ""}
</div>
<mwc-linear-progress
.indeterminate=${!this.progress}
.progress=${this.progress ? this.progress / 100 : undefined}
></mwc-linear-progress>
</div>`
: html`<label
for=${this.value ? "" : "input"}
class="container ${classMap({
dragged: this._drag,
multiple: this.multiple,
value: Boolean(this.value),
})}"
@drop=${this._handleDrop}
@dragenter=${this._handleDragStart}
@dragover=${this._handleDragStart}
@dragleave=${this._handleDragEnd}
@dragend=${this._handleDragEnd}
>${!this.value
? html`<ha-svg-icon
class="big-icon"
.path=${this.icon || mdiFileUpload}
></ha-svg-icon>
<ha-button unelevated @click=${this._openFilePicker}>
${this.label ||
this.hass?.localize("ui.components.file-upload.label")}
</ha-button>
<span class="secondary"
>${this.secondary ||
this.hass?.localize(
"ui.components.file-upload.secondary"
)}</span
>
<span class="supports">${this.supports}</span>`
: typeof this.value === "string"
? html`<div class="row">
<div class="value" @click=${this._openFilePicker}>
<ha-svg-icon
.path=${this.icon || mdiFileUpload}
></ha-svg-icon>
${this.value}
</div>
<ha-icon-button
@click=${this._clearValue}
.label=${this.hass?.localize("ui.common.delete") ||
"Delete"}
.path=${mdiDelete}
></ha-icon-button>
</div>`
: (this.value instanceof FileList
? Array.from(this.value)
: ensureArray(this.value)
).map(
(file) =>
html`<div class="row">
<div class="value" @click=${this._openFilePicker}>
<ha-svg-icon
.path=${this.icon || mdiFileUpload}
></ha-svg-icon>
${file.name} - ${bytesToString(file.size)}
</div>
<ha-icon-button
@click=${this._clearValue}
.label=${this.hass?.localize("ui.common.delete") ||
"Delete"}
.path=${mdiDelete}
></ha-icon-button>
</div>`
)}
<input
id="input"
type="file"
class="file"
.accept=${this.accept}
.multiple=${this.multiple}
@change=${this._handleFilePicked}
/></label>`}
`;
}
private _openFilePicker() {
this._input?.click();
}
private _handleDrop(ev: DragEvent) {
ev.preventDefault();
ev.stopPropagation();
if (ev.dataTransfer?.files) {
fireEvent(this, "file-picked", {
files:
this.multiple || ev.dataTransfer.files.length === 1
? Array.from(ev.dataTransfer.files)
: [ev.dataTransfer.files[0]],
});
}
this._drag = false;
}
private _handleDragStart(ev: DragEvent) {
ev.preventDefault();
ev.stopPropagation();
this._drag = true;
}
private _handleDragEnd(ev: DragEvent) {
ev.preventDefault();
ev.stopPropagation();
this._drag = false;
}
private _handleFilePicked(ev) {
if (ev.target.files.length === 0) {
return;
}
this.value = ev.target.files;
fireEvent(this, "file-picked", { files: ev.target.files });
}
private _clearValue(ev: Event) {
ev.preventDefault();
this._input!.value = "";
this.value = undefined;
fireEvent(this, "change");
}
static get styles() {
return css`
:host {
display: block;
height: 240px;
}
:host([disabled]) {
pointer-events: none;
color: var(--disabled-text-color);
}
.container {
position: relative;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
border: solid 1px
var(--mdc-text-field-idle-line-color, rgba(0, 0, 0, 0.42));
border-radius: var(--mdc-shape-small, 4px);
height: 100%;
}
label.container {
border: dashed 1px
var(--mdc-text-field-idle-line-color, rgba(0, 0, 0, 0.42));
cursor: pointer;
}
:host([disabled]) .container {
border-color: var(--disabled-color);
}
label.dragged {
border-color: var(--primary-color);
}
.dragged:before {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
background-color: var(--primary-color);
content: "";
opacity: var(--dark-divider-opacity);
pointer-events: none;
border-radius: var(--mdc-shape-small, 4px);
}
label.value {
cursor: default;
}
label.value.multiple {
justify-content: unset;
overflow: auto;
}
.highlight {
color: var(--primary-color);
}
.row {
display: flex;
width: 100%;
align-items: center;
justify-content: space-between;
padding: 0 16px;
box-sizing: border-box;
}
ha-button {
margin-bottom: 4px;
}
.supports {
color: var(--secondary-text-color);
font-size: 12px;
}
:host([disabled]) .secondary {
color: var(--disabled-text-color);
}
input.file {
display: none;
}
.value {
cursor: pointer;
}
.value ha-svg-icon {
margin-right: 8px;
}
.big-icon {
--mdc-icon-size: 48px;
margin-bottom: 8px;
}
ha-button {
--mdc-button-outline-color: var(--primary-color);
--mdc-icon-button-size: 24px;
}
mwc-linear-progress {
width: 100%;
padding: 16px;
box-sizing: border-box;
}
.header {
font-weight: 500;
}
.progress {
color: var(--secondary-text-color);
}
`;
}
}
declare global {
interface HTMLElementTagNameMap {
"ha-file-upload": HaFileUpload;
}
}