lemmy/ui/src/components/post-form.tsx

623 lines
19 KiB
TypeScript

import { Component, linkEvent } from 'inferno';
import { Prompt } from 'inferno-router';
import { PostListings } from './post-listings';
import { MarkdownTextArea } from './markdown-textarea';
import { Subscription } from 'rxjs';
import { retryWhen, delay, take } from 'rxjs/operators';
import {
PostForm as PostFormI,
PostFormParams,
Post,
PostResponse,
UserOperation,
Community,
ListCommunitiesResponse,
ListCommunitiesForm,
SortType,
SearchForm,
SearchType,
SearchResponse,
WebSocketJsonResponse,
} from 'lemmy-js-client';
import { WebSocketService, UserService } from '../services';
import {
wsJsonToRes,
getPageTitle,
validURL,
capitalizeFirstLetter,
archiveUrl,
debounce,
isImage,
toast,
randomStr,
setupTippy,
hostname,
pictrsDeleteToast,
validTitle,
} from '../utils';
import Choices from 'choices.js';
import { i18n } from '../i18next';
const MAX_POST_TITLE_LENGTH = 200;
interface PostFormProps {
post?: Post; // If a post is given, that means this is an edit
params?: PostFormParams;
onCancel?(): any;
onCreate?(id: number): any;
onEdit?(post: Post): any;
enableNsfw: boolean;
enableDownvotes: boolean;
}
interface PostFormState {
postForm: PostFormI;
communities: Array<Community>;
loading: boolean;
imageLoading: boolean;
previewMode: boolean;
suggestedTitle: string;
suggestedPosts: Array<Post>;
crossPosts: Array<Post>;
}
export class PostForm extends Component<PostFormProps, PostFormState> {
private id = `post-form-${randomStr()}`;
private subscription: Subscription;
private choices: Choices;
private emptyState: PostFormState = {
postForm: {
name: null,
nsfw: false,
auth: null,
community_id: null,
},
communities: [],
loading: false,
imageLoading: false,
previewMode: false,
suggestedTitle: undefined,
suggestedPosts: [],
crossPosts: [],
};
constructor(props: any, context: any) {
super(props, context);
this.fetchSimilarPosts = debounce(this.fetchSimilarPosts).bind(this);
this.fetchPageTitle = debounce(this.fetchPageTitle).bind(this);
this.handlePostBodyChange = this.handlePostBodyChange.bind(this);
this.state = this.emptyState;
if (this.props.post) {
this.state.postForm = {
body: this.props.post.body,
// NOTE: debouncing breaks both these for some reason, unless you use defaultValue
name: this.props.post.name,
community_id: this.props.post.community_id,
edit_id: this.props.post.id,
url: this.props.post.url,
nsfw: this.props.post.nsfw,
auth: null,
};
}
if (this.props.params) {
this.state.postForm.name = this.props.params.name;
if (this.props.params.url) {
this.state.postForm.url = this.props.params.url;
}
if (this.props.params.body) {
this.state.postForm.body = this.props.params.body;
}
}
this.subscription = WebSocketService.Instance.subject
.pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
.subscribe(
msg => this.parseMessage(msg),
err => console.error(err),
() => console.log('complete')
);
let listCommunitiesForm: ListCommunitiesForm = {
sort: SortType.TopAll,
limit: 9999,
};
WebSocketService.Instance.listCommunities(listCommunitiesForm);
}
componentDidMount() {
setupTippy();
}
componentDidUpdate() {
if (
!this.state.loading &&
(this.state.postForm.name ||
this.state.postForm.url ||
this.state.postForm.body)
) {
window.onbeforeunload = () => true;
} else {
window.onbeforeunload = undefined;
}
}
componentWillUnmount() {
this.subscription.unsubscribe();
/* this.choices && this.choices.destroy(); */
window.onbeforeunload = null;
}
render() {
return (
<div>
<Prompt
when={
!this.state.loading &&
(this.state.postForm.name ||
this.state.postForm.url ||
this.state.postForm.body)
}
message={i18n.t('block_leaving')}
/>
<form onSubmit={linkEvent(this, this.handlePostSubmit)}>
<div class="form-group row">
<label class="col-sm-2 col-form-label" htmlFor="post-url">
{i18n.t('url')}
</label>
<div class="col-sm-10">
<input
type="url"
id="post-url"
class="form-control"
value={this.state.postForm.url}
onInput={linkEvent(this, this.handlePostUrlChange)}
onPaste={linkEvent(this, this.handleImageUploadPaste)}
/>
{this.state.suggestedTitle && (
<div
class="mt-1 text-muted small font-weight-bold pointer"
onClick={linkEvent(this, this.copySuggestedTitle)}
>
{i18n.t('copy_suggested_title', {
title: this.state.suggestedTitle,
})}
</div>
)}
<form>
<label
htmlFor="file-upload"
className={`${
UserService.Instance.user && 'pointer'
} d-inline-block float-right text-muted font-weight-bold`}
data-tippy-content={i18n.t('upload_image')}
>
<svg class="icon icon-inline">
<use xlinkHref="#icon-image"></use>
</svg>
</label>
<input
id="file-upload"
type="file"
accept="image/*,video/*"
name="file"
class="d-none"
disabled={!UserService.Instance.user}
onChange={linkEvent(this, this.handleImageUpload)}
/>
</form>
{validURL(this.state.postForm.url) && (
<a
href={`${archiveUrl}/?run=1&url=${encodeURIComponent(
this.state.postForm.url
)}`}
target="_blank"
class="mr-2 d-inline-block float-right text-muted small font-weight-bold"
rel="noopener"
>
{i18n.t('archive_link')}
</a>
)}
{this.state.imageLoading && (
<svg class="icon icon-spinner spin">
<use xlinkHref="#icon-spinner"></use>
</svg>
)}
{isImage(this.state.postForm.url) && (
<img src={this.state.postForm.url} class="img-fluid" />
)}
{this.state.crossPosts.length > 0 && (
<>
<div class="my-1 text-muted small font-weight-bold">
{i18n.t('cross_posts')}
</div>
<PostListings
showCommunity
posts={this.state.crossPosts}
enableDownvotes={this.props.enableDownvotes}
enableNsfw={this.props.enableNsfw}
/>
</>
)}
</div>
</div>
<div class="form-group row">
<label class="col-sm-2 col-form-label" htmlFor="post-title">
{i18n.t('title')}
</label>
<div class="col-sm-10">
<textarea
value={this.state.postForm.name}
id="post-title"
onInput={linkEvent(this, this.handlePostNameChange)}
class={`form-control ${
!validTitle(this.state.postForm.name) && 'is-invalid'
}`}
required
rows={2}
minLength={3}
maxLength={MAX_POST_TITLE_LENGTH}
/>
{!validTitle(this.state.postForm.name) && (
<div class="invalid-feedback">
{i18n.t('invalid_post_title')}
</div>
)}
{this.state.suggestedPosts.length > 0 && (
<>
<div class="my-1 text-muted small font-weight-bold">
{i18n.t('related_posts')}
</div>
<PostListings
posts={this.state.suggestedPosts}
enableDownvotes={this.props.enableDownvotes}
enableNsfw={this.props.enableNsfw}
/>
</>
)}
</div>
</div>
<div class="form-group row">
<label class="col-sm-2 col-form-label" htmlFor={this.id}>
{i18n.t('body')}
</label>
<div class="col-sm-10">
<MarkdownTextArea
initialContent={this.state.postForm.body}
onContentChange={this.handlePostBodyChange}
/>
</div>
</div>
{!this.props.post && (
<div class="form-group row">
<label class="col-sm-2 col-form-label" htmlFor="post-community">
{i18n.t('community')}
</label>
<div class="col-sm-10">
<select
class="form-control"
id="post-community"
value={this.state.postForm.community_id}
onInput={linkEvent(this, this.handlePostCommunityChange)}
>
<option>{i18n.t('select_a_community')}</option>
{this.state.communities.map(community => (
<option value={community.id}>
{community.local
? community.name
: `${hostname(community.actor_id)}/${community.name}`}
</option>
))}
</select>
</div>
</div>
)}
{this.props.enableNsfw && (
<div class="form-group row">
<div class="col-sm-10">
<div class="form-check">
<input
class="form-check-input"
id="post-nsfw"
type="checkbox"
checked={this.state.postForm.nsfw}
onChange={linkEvent(this, this.handlePostNsfwChange)}
/>
<label class="form-check-label" htmlFor="post-nsfw">
{i18n.t('nsfw')}
</label>
</div>
</div>
</div>
)}
<div class="form-group row">
<div class="col-sm-10">
<button
disabled={
!this.state.postForm.community_id || this.state.loading
}
type="submit"
class="btn btn-secondary mr-2"
>
{this.state.loading ? (
<svg class="icon icon-spinner spin">
<use xlinkHref="#icon-spinner"></use>
</svg>
) : this.props.post ? (
capitalizeFirstLetter(i18n.t('save'))
) : (
capitalizeFirstLetter(i18n.t('create'))
)}
</button>
{this.props.post && (
<button
type="button"
class="btn btn-secondary"
onClick={linkEvent(this, this.handleCancel)}
>
{i18n.t('cancel')}
</button>
)}
</div>
</div>
</form>
</div>
);
}
handlePostSubmit(i: PostForm, event: any) {
event.preventDefault();
// Coerce empty url string to undefined
if (i.state.postForm.url && i.state.postForm.url === '') {
i.state.postForm.url = undefined;
}
if (i.props.post) {
WebSocketService.Instance.editPost(i.state.postForm);
} else {
WebSocketService.Instance.createPost(i.state.postForm);
}
i.state.loading = true;
i.setState(i.state);
}
copySuggestedTitle(i: PostForm) {
i.state.postForm.name = i.state.suggestedTitle.substring(
0,
MAX_POST_TITLE_LENGTH
);
i.state.suggestedTitle = undefined;
i.setState(i.state);
}
handlePostUrlChange(i: PostForm, event: any) {
i.state.postForm.url = event.target.value;
i.setState(i.state);
i.fetchPageTitle();
}
fetchPageTitle() {
if (validURL(this.state.postForm.url)) {
let form: SearchForm = {
q: this.state.postForm.url,
type_: SearchType.Url,
sort: SortType.TopAll,
page: 1,
limit: 6,
};
WebSocketService.Instance.search(form);
// Fetch the page title
getPageTitle(this.state.postForm.url).then(d => {
this.state.suggestedTitle = d;
this.setState(this.state);
});
} else {
this.state.suggestedTitle = undefined;
this.state.crossPosts = [];
}
}
handlePostNameChange(i: PostForm, event: any) {
i.state.postForm.name = event.target.value;
i.setState(i.state);
i.fetchSimilarPosts();
}
fetchSimilarPosts() {
let form: SearchForm = {
q: this.state.postForm.name,
type_: SearchType.Posts,
sort: SortType.TopAll,
community_id: this.state.postForm.community_id,
page: 1,
limit: 6,
};
if (this.state.postForm.name !== '') {
WebSocketService.Instance.search(form);
} else {
this.state.suggestedPosts = [];
}
this.setState(this.state);
}
handlePostBodyChange(val: string) {
this.state.postForm.body = val;
this.setState(this.state);
}
handlePostCommunityChange(i: PostForm, event: any) {
i.state.postForm.community_id = Number(event.target.value);
i.setState(i.state);
}
handlePostNsfwChange(i: PostForm, event: any) {
i.state.postForm.nsfw = event.target.checked;
i.setState(i.state);
}
handleCancel(i: PostForm) {
i.props.onCancel();
}
handlePreviewToggle(i: PostForm, event: any) {
event.preventDefault();
i.state.previewMode = !i.state.previewMode;
i.setState(i.state);
}
handleImageUploadPaste(i: PostForm, event: any) {
let image = event.clipboardData.files[0];
if (image) {
i.handleImageUpload(i, image);
}
}
handleImageUpload(i: PostForm, event: any) {
let file: any;
if (event.target) {
event.preventDefault();
file = event.target.files[0];
} else {
file = event;
}
const imageUploadUrl = `/pictrs/image`;
const formData = new FormData();
formData.append('images[]', file);
i.state.imageLoading = true;
i.setState(i.state);
fetch(imageUploadUrl, {
method: 'POST',
body: formData,
})
.then(res => res.json())
.then(res => {
console.log('pictrs upload:');
console.log(res);
if (res.msg == 'ok') {
let hash = res.files[0].file;
let url = `${window.location.origin}/pictrs/image/${hash}`;
let deleteToken = res.files[0].delete_token;
let deleteUrl = `${window.location.origin}/pictrs/image/delete/${deleteToken}/${hash}`;
i.state.postForm.url = url;
i.state.imageLoading = false;
i.setState(i.state);
pictrsDeleteToast(
i18n.t('click_to_delete_picture'),
i18n.t('picture_deleted'),
deleteUrl
);
} else {
i.state.imageLoading = false;
i.setState(i.state);
toast(JSON.stringify(res), 'danger');
}
})
.catch(error => {
i.state.imageLoading = false;
i.setState(i.state);
toast(error, 'danger');
});
}
parseMessage(msg: WebSocketJsonResponse) {
let res = wsJsonToRes(msg);
if (msg.error) {
toast(i18n.t(msg.error), 'danger');
this.state.loading = false;
this.setState(this.state);
return;
} else if (res.op == UserOperation.ListCommunities) {
let data = res.data as ListCommunitiesResponse;
this.state.communities = data.communities;
if (this.props.post) {
this.state.postForm.community_id = this.props.post.community_id;
} else if (this.props.params && this.props.params.community) {
let foundCommunityId = data.communities.find(
r => r.name == this.props.params.community
).id;
this.state.postForm.community_id = foundCommunityId;
} else {
// By default, the null valued 'Select a Community'
}
this.setState(this.state);
// Set up select searching
let selectId: any = document.getElementById('post-community');
if (selectId) {
this.choices = new Choices(selectId, {
shouldSort: false,
classNames: {
containerOuter: 'choices',
containerInner: 'choices__inner bg-secondary border-0',
input: 'form-control',
inputCloned: 'choices__input--cloned',
list: 'choices__list',
listItems: 'choices__list--multiple',
listSingle: 'choices__list--single',
listDropdown: 'choices__list--dropdown',
item: 'choices__item bg-secondary',
itemSelectable: 'choices__item--selectable',
itemDisabled: 'choices__item--disabled',
itemChoice: 'choices__item--choice',
placeholder: 'choices__placeholder',
group: 'choices__group',
groupHeading: 'choices__heading',
button: 'choices__button',
activeState: 'is-active',
focusState: 'is-focused',
openState: 'is-open',
disabledState: 'is-disabled',
highlightedState: 'text-info',
selectedState: 'text-info',
flippedState: 'is-flipped',
loadingState: 'is-loading',
noResults: 'has-no-results',
noChoices: 'has-no-choices',
},
});
this.choices.passedElement.element.addEventListener(
'choice',
(e: any) => {
this.state.postForm.community_id = Number(e.detail.choice.value);
this.setState(this.state);
},
false
);
}
} else if (res.op == UserOperation.CreatePost) {
let data = res.data as PostResponse;
if (data.post.creator_id == UserService.Instance.user.id) {
this.state.loading = false;
this.props.onCreate(data.post.id);
}
} else if (res.op == UserOperation.EditPost) {
let data = res.data as PostResponse;
if (data.post.creator_id == UserService.Instance.user.id) {
this.state.loading = false;
this.props.onEdit(data.post);
}
} else if (res.op == UserOperation.Search) {
let data = res.data as SearchResponse;
if (data.type_ == SearchType[SearchType.Posts]) {
this.state.suggestedPosts = data.posts;
} else if (data.type_ == SearchType[SearchType.Url]) {
this.state.crossPosts = data.posts;
}
this.setState(this.state);
}
}
}