ui/src/components/post-form.tsx

   1 import { Component, linkEvent } from 'inferno';
   2 import { Prompt } from 'inferno-router';
   3 import { PostListings } from './post-listings';
   4 import { Subscription } from 'rxjs';
   5 import { retryWhen, delay, take } from 'rxjs/operators';
   6 import {
   7   PostForm as PostFormI,
   8   PostFormParams,
   9   Post,
  10   PostResponse,
  11   UserOperation,
  12   Community,
  13   ListCommunitiesResponse,
  14   ListCommunitiesForm,
  15   SortType,
  16   SearchForm,
  17   SearchType,
  18   SearchResponse,
  19   GetSiteResponse,
  20   WebSocketJsonResponse,
  21 } from '../interfaces';
  22 import { WebSocketService, UserService } from '../services';
  23 import {
  24   wsJsonToRes,
  25   getPageTitle,
  26   validURL,
  27   capitalizeFirstLetter,
  28   markdownHelpUrl,
  29   archiveUrl,
  30   mdToHtml,
  31   debounce,
  32   isImage,
  33   toast,
  34   randomStr,
  35   setupTribute,
  36   setupTippy,
  37   emojiPicker,
  38 } from '../utils';
  39 import autosize from 'autosize';
  40 import Tribute from 'tributejs/src/Tribute.js';
  41 import emojiShortName from 'emoji-short-name';
  42 import Selectr from 'mobius1-selectr';
  43 import { i18n } from '../i18next';
  44
  45 const MAX_POST_TITLE_LENGTH = 200;
  46
  47 interface PostFormProps {
  48   post?: Post; // If a post is given, that means this is an edit
  49   params?: PostFormParams;
  50   onCancel?(): any;
  51   onCreate?(id: number): any;
  52   onEdit?(post: Post): any;
  53 }
  54
  55 interface PostFormState {
  56   postForm: PostFormI;
  57   communities: Array<Community>;
  58   loading: boolean;
  59   imageLoading: boolean;
  60   previewMode: boolean;
  61   suggestedTitle: string;
  62   suggestedPosts: Array<Post>;
  63   crossPosts: Array<Post>;
  64   enable_nsfw: boolean;
  65 }
  66
  67 export class PostForm extends Component<PostFormProps, PostFormState> {
  68   private id = `post-form-${randomStr()}`;
  69   private tribute: Tribute;
  70   private subscription: Subscription;
  71   private emptyState: PostFormState = {
  72     postForm: {
  73       name: null,
  74       nsfw: false,
  75       auth: null,
  76       community_id: null,
  77       creator_id: UserService.Instance.user
  78         ? UserService.Instance.user.id
  79         : null,
  80     },
  81     communities: [],
  82     loading: false,
  83     imageLoading: false,
  84     previewMode: false,
  85     suggestedTitle: undefined,
  86     suggestedPosts: [],
  87     crossPosts: [],
  88     enable_nsfw: undefined,
  89   };
  90
  91   constructor(props: any, context: any) {
  92     super(props, context);
  93     this.fetchSimilarPosts = debounce(this.fetchSimilarPosts).bind(this);
  94     this.fetchPageTitle = debounce(this.fetchPageTitle).bind(this);
  95
  96     this.tribute = setupTribute();
  97     this.setupEmojiPicker();
  98
  99     this.state = this.emptyState;
 100
 101     if (this.props.post) {
 102       this.state.postForm = {
 103         body: this.props.post.body,
 104         // NOTE: debouncing breaks both these for some reason, unless you use defaultValue
 105         name: this.props.post.name,
 106         community_id: this.props.post.community_id,
 107         edit_id: this.props.post.id,
 108         creator_id: this.props.post.creator_id,
 109         url: this.props.post.url,
 110         nsfw: this.props.post.nsfw,
 111         auth: null,
 112       };
 113     }
 114
 115     if (this.props.params) {
 116       this.state.postForm.name = this.props.params.name;
 117       if (this.props.params.url) {
 118         this.state.postForm.url = this.props.params.url;
 119       }
 120       if (this.props.params.body) {
 121         this.state.postForm.body = this.props.params.body;
 122       }
 123     }
 124
 125     this.subscription = WebSocketService.Instance.subject
 126       .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
 127       .subscribe(
 128         msg => this.parseMessage(msg),
 129         err => console.error(err),
 130         () => console.log('complete')
 131       );
 132
 133     let listCommunitiesForm: ListCommunitiesForm = {
 134       sort: SortType[SortType.TopAll],
 135       limit: 9999,
 136     };
 137
 138     WebSocketService.Instance.listCommunities(listCommunitiesForm);
 139     WebSocketService.Instance.getSite();
 140   }
 141
 142   componentDidMount() {
 143     var textarea: any = document.getElementById(this.id);
 144     autosize(textarea);
 145     this.tribute.attach(textarea);
 146     textarea.addEventListener('tribute-replaced', () => {
 147       this.state.postForm.body = textarea.value;
 148       this.setState(this.state);
 149       autosize.update(textarea);
 150     });
 151     setupTippy();
 152   }
 153
 154   componentWillUnmount() {
 155     this.subscription.unsubscribe();
 156   }
 157
 158   render() {
 159     return (
 160       <div>
 161         <Prompt
 162           when={
 163             !this.state.loading &&
 164             (this.state.postForm.name ||
 165               this.state.postForm.url ||
 166               this.state.postForm.body)
 167           }
 168           message={i18n.t('block_leaving')}
 169         />
 170         <form onSubmit={linkEvent(this, this.handlePostSubmit)}>
 171           <div class="form-group row">
 172             <label class="col-sm-2 col-form-label" htmlFor="post-url">
 173               {i18n.t('url')}
 174             </label>
 175             <div class="col-sm-10">
 176               <input
 177                 type="url"
 178                 id="post-url"
 179                 class="form-control"
 180                 value={this.state.postForm.url}
 181                 onInput={linkEvent(this, this.handlePostUrlChange)}
 182                 onPaste={linkEvent(this, this.handleImageUploadPaste)}
 183               />
 184               {this.state.suggestedTitle && (
 185                 <div
 186                   class="mt-1 text-muted small font-weight-bold pointer"
 187                   onClick={linkEvent(this, this.copySuggestedTitle)}
 188                 >
 189                   {i18n.t('copy_suggested_title', {
 190                     title: this.state.suggestedTitle,
 191                   })}
 192                 </div>
 193               )}
 194               <form>
 195                 <label
 196                   htmlFor="file-upload"
 197                   className={`${
 198                     UserService.Instance.user && 'pointer'
 199                   } d-inline-block float-right text-muted font-weight-bold`}
 200                   data-tippy-content={i18n.t('upload_image')}
 201                 >
 202                   <svg class="icon icon-inline">
 203                     <use xlinkHref="#icon-image"></use>
 204                   </svg>
 205                 </label>
 206                 <input
 207                   id="file-upload"
 208                   type="file"
 209                   accept="image/*,video/*"
 210                   name="file"
 211                   class="d-none"
 212                   disabled={!UserService.Instance.user}
 213                   onChange={linkEvent(this, this.handleImageUpload)}
 214                 />
 215               </form>
 216               {validURL(this.state.postForm.url) && (
 217                 <a
 218                   href={`${archiveUrl}/?run=1&url=${encodeURIComponent(
 219                     this.state.postForm.url
 220                   )}`}
 221                   target="_blank"
 222                   class="mr-2 d-inline-block float-right text-muted small font-weight-bold"
 223                 >
 224                   {i18n.t('archive_link')}
 225                 </a>
 226               )}
 227               {this.state.imageLoading && (
 228                 <svg class="icon icon-spinner spin">
 229                   <use xlinkHref="#icon-spinner"></use>
 230                 </svg>
 231               )}
 232               {isImage(this.state.postForm.url) && (
 233                 <img src={this.state.postForm.url} class="img-fluid" />
 234               )}
 235               {this.state.crossPosts.length > 0 && (
 236                 <>
 237                   <div class="my-1 text-muted small font-weight-bold">
 238                     {i18n.t('cross_posts')}
 239                   </div>
 240                   <PostListings showCommunity posts={this.state.crossPosts} />
 241                 </>
 242               )}
 243             </div>
 244           </div>
 245           <div class="form-group row">
 246             <label class="col-sm-2 col-form-label" htmlFor="post-title">
 247               {i18n.t('title')}
 248             </label>
 249             <div class="col-sm-10">
 250               <textarea
 251                 value={this.state.postForm.name}
 252                 id="post-title"
 253                 onInput={linkEvent(this, this.handlePostNameChange)}
 254                 class="form-control"
 255                 required
 256                 rows={2}
 257                 minLength={3}
 258                 maxLength={MAX_POST_TITLE_LENGTH}
 259               />
 260               {this.state.suggestedPosts.length > 0 && (
 261                 <>
 262                   <div class="my-1 text-muted small font-weight-bold">
 263                     {i18n.t('related_posts')}
 264                   </div>
 265                   <PostListings posts={this.state.suggestedPosts} />
 266                 </>
 267               )}
 268             </div>
 269           </div>
 270
 271           <div class="form-group row">
 272             <label class="col-sm-2 col-form-label" htmlFor={this.id}>
 273               {i18n.t('body')}
 274             </label>
 275             <div class="col-sm-10">
 276               <textarea
 277                 id={this.id}
 278                 value={this.state.postForm.body}
 279                 onInput={linkEvent(this, this.handlePostBodyChange)}
 280                 className={`form-control ${this.state.previewMode && 'd-none'}`}
 281                 rows={4}
 282                 maxLength={10000}
 283               />
 284               {this.state.previewMode && (
 285                 <div
 286                   className="md-div"
 287                   dangerouslySetInnerHTML={mdToHtml(this.state.postForm.body)}
 288                 />
 289               )}
 290               {this.state.postForm.body && (
 291                 <button
 292                   className={`mt-1 mr-2 btn btn-sm btn-secondary ${
 293                     this.state.previewMode && 'active'
 294                   }`}
 295                   onClick={linkEvent(this, this.handlePreviewToggle)}
 296                 >
 297                   {i18n.t('preview')}
 298                 </button>
 299               )}
 300               <a
 301                 href={markdownHelpUrl}
 302                 target="_blank"
 303                 class="d-inline-block float-right text-muted font-weight-bold"
 304                 title={i18n.t('formatting_help')}
 305               >
 306                 <svg class="icon icon-inline">
 307                   <use xlinkHref="#icon-help-circle"></use>
 308                 </svg>
 309               </a>
 310               <span
 311                 onClick={linkEvent(this, this.handleEmojiPickerClick)}
 312                 class="pointer unselectable d-inline-block mr-3 float-right text-muted font-weight-bold"
 313                 data-tippy-content={i18n.t('emoji_picker')}
 314               >
 315                 <svg class="icon icon-inline">
 316                   <use xlinkHref="#icon-smile"></use>
 317                 </svg>
 318               </span>
 319             </div>
 320           </div>
 321           {!this.props.post && (
 322             <div class="form-group row">
 323               <label class="col-sm-2 col-form-label" htmlFor="post-community">
 324                 {i18n.t('community')}
 325               </label>
 326               <div class="col-sm-10">
 327                 <select
 328                   class="form-control"
 329                   id="post-community"
 330                   value={this.state.postForm.community_id}
 331                   onInput={linkEvent(this, this.handlePostCommunityChange)}
 332                 >
 333                   <option>{i18n.t('select_a_community')}</option>
 334                   {this.state.communities.map(community => (
 335                     <option value={community.id}>{community.name}</option>
 336                   ))}
 337                 </select>
 338               </div>
 339             </div>
 340           )}
 341           {this.state.enable_nsfw && (
 342             <div class="form-group row">
 343               <div class="col-sm-10">
 344                 <div class="form-check">
 345                   <input
 346                     class="form-check-input"
 347                     id="post-nsfw"
 348                     type="checkbox"
 349                     checked={this.state.postForm.nsfw}
 350                     onChange={linkEvent(this, this.handlePostNsfwChange)}
 351                   />
 352                   <label class="form-check-label" htmlFor="post-nsfw">
 353                     {i18n.t('nsfw')}
 354                   </label>
 355                 </div>
 356               </div>
 357             </div>
 358           )}
 359           <div class="form-group row">
 360             <div class="col-sm-10">
 361               <button
 362                 disabled={!this.state.postForm.community_id}
 363                 type="submit"
 364                 class="btn btn-secondary mr-2"
 365               >
 366                 {this.state.loading ? (
 367                   <svg class="icon icon-spinner spin">
 368                     <use xlinkHref="#icon-spinner"></use>
 369                   </svg>
 370                 ) : this.props.post ? (
 371                   capitalizeFirstLetter(i18n.t('save'))
 372                 ) : (
 373                   capitalizeFirstLetter(i18n.t('create'))
 374                 )}
 375               </button>
 376               {this.props.post && (
 377                 <button
 378                   type="button"
 379                   class="btn btn-secondary"
 380                   onClick={linkEvent(this, this.handleCancel)}
 381                 >
 382                   {i18n.t('cancel')}
 383                 </button>
 384               )}
 385             </div>
 386           </div>
 387         </form>
 388       </div>
 389     );
 390   }
 391
 392   setupEmojiPicker() {
 393     emojiPicker.on('emoji', twemojiHtmlStr => {
 394       if (this.state.postForm.body == null) {
 395         this.state.postForm.body = '';
 396       }
 397       var el = document.createElement('div');
 398       el.innerHTML = twemojiHtmlStr;
 399       let nativeUnicode = (el.childNodes[0] as HTMLElement).getAttribute('alt');
 400       let shortName = `:${emojiShortName[nativeUnicode]}:`;
 401       this.state.postForm.body += shortName;
 402       this.setState(this.state);
 403     });
 404   }
 405
 406   handlePostSubmit(i: PostForm, event: any) {
 407     event.preventDefault();
 408     if (i.props.post) {
 409       WebSocketService.Instance.editPost(i.state.postForm);
 410     } else {
 411       WebSocketService.Instance.createPost(i.state.postForm);
 412     }
 413     i.state.loading = true;
 414     i.setState(i.state);
 415   }
 416
 417   copySuggestedTitle(i: PostForm) {
 418     i.state.postForm.name = i.state.suggestedTitle.substring(
 419       0,
 420       MAX_POST_TITLE_LENGTH
 421     );
 422     i.state.suggestedTitle = undefined;
 423     i.setState(i.state);
 424   }
 425
 426   handlePostUrlChange(i: PostForm, event: any) {
 427     i.state.postForm.url = event.target.value;
 428     i.setState(i.state);
 429     i.fetchPageTitle();
 430   }
 431
 432   fetchPageTitle() {
 433     if (validURL(this.state.postForm.url)) {
 434       let form: SearchForm = {
 435         q: this.state.postForm.url,
 436         type_: SearchType[SearchType.Url],
 437         sort: SortType[SortType.TopAll],
 438         page: 1,
 439         limit: 6,
 440       };
 441
 442       WebSocketService.Instance.search(form);
 443
 444       // Fetch the page title
 445       getPageTitle(this.state.postForm.url).then(d => {
 446         this.state.suggestedTitle = d;
 447         this.setState(this.state);
 448       });
 449     } else {
 450       this.state.suggestedTitle = undefined;
 451       this.state.crossPosts = [];
 452     }
 453   }
 454
 455   handlePostNameChange(i: PostForm, event: any) {
 456     i.state.postForm.name = event.target.value;
 457     i.setState(i.state);
 458     i.fetchSimilarPosts();
 459   }
 460
 461   fetchSimilarPosts() {
 462     let form: SearchForm = {
 463       q: this.state.postForm.name,
 464       type_: SearchType[SearchType.Posts],
 465       sort: SortType[SortType.TopAll],
 466       community_id: this.state.postForm.community_id,
 467       page: 1,
 468       limit: 6,
 469     };
 470
 471     if (this.state.postForm.name !== '') {
 472       WebSocketService.Instance.search(form);
 473     } else {
 474       this.state.suggestedPosts = [];
 475     }
 476
 477     this.setState(this.state);
 478   }
 479
 480   handlePostBodyChange(i: PostForm, event: any) {
 481     i.state.postForm.body = event.target.value;
 482     i.setState(i.state);
 483   }
 484
 485   handlePostCommunityChange(i: PostForm, event: any) {
 486     i.state.postForm.community_id = Number(event.target.value);
 487     i.setState(i.state);
 488   }
 489
 490   handlePostNsfwChange(i: PostForm, event: any) {
 491     i.state.postForm.nsfw = event.target.checked;
 492     i.setState(i.state);
 493   }
 494
 495   handleCancel(i: PostForm) {
 496     i.props.onCancel();
 497   }
 498
 499   handlePreviewToggle(i: PostForm, event: any) {
 500     event.preventDefault();
 501     i.state.previewMode = !i.state.previewMode;
 502     i.setState(i.state);
 503   }
 504
 505   handleImageUploadPaste(i: PostForm, event: any) {
 506     let image = event.clipboardData.files[0];
 507     if (image) {
 508       i.handleImageUpload(i, image);
 509     }
 510   }
 511
 512   handleImageUpload(i: PostForm, event: any) {
 513     let file: any;
 514     if (event.target) {
 515       event.preventDefault();
 516       file = event.target.files[0];
 517     } else {
 518       file = event;
 519     }
 520
 521     const imageUploadUrl = `/pictrs/image`;
 522     const formData = new FormData();
 523     formData.append('images', file);
 524
 525     i.state.imageLoading = true;
 526     i.setState(i.state);
 527
 528     fetch(imageUploadUrl, {
 529       method: 'POST',
 530       body: formData,
 531     })
 532       .then(res => res.json())
 533       .then(res => {
 534         let url = `${window.location.origin}/pictrs/${encodeURI(res.url)}`;
 535         if (res.filetype == 'mp4') {
 536           url += '/raw';
 537         }
 538         i.state.postForm.url = url;
 539         i.state.imageLoading = false;
 540         i.setState(i.state);
 541       })
 542       .catch(error => {
 543         i.state.imageLoading = false;
 544         i.setState(i.state);
 545         toast(error, 'danger');
 546       });
 547   }
 548
 549   handleEmojiPickerClick(_i: PostForm, event: any) {
 550     emojiPicker.togglePicker(event.target);
 551   }
 552
 553   parseMessage(msg: WebSocketJsonResponse) {
 554     let res = wsJsonToRes(msg);
 555     if (msg.error) {
 556       toast(i18n.t(msg.error), 'danger');
 557       this.state.loading = false;
 558       this.setState(this.state);
 559       return;
 560     } else if (res.op == UserOperation.ListCommunities) {
 561       let data = res.data as ListCommunitiesResponse;
 562       this.state.communities = data.communities;
 563       if (this.props.post) {
 564         this.state.postForm.community_id = this.props.post.community_id;
 565       } else if (this.props.params && this.props.params.community) {
 566         let foundCommunityId = data.communities.find(
 567           r => r.name == this.props.params.community
 568         ).id;
 569         this.state.postForm.community_id = foundCommunityId;
 570       } else {
 571         // By default, the null valued 'Select a Community'
 572       }
 573       this.setState(this.state);
 574
 575       // Set up select searching
 576       let selectId: any = document.getElementById('post-community');
 577       if (selectId) {
 578         let selector = new Selectr(selectId, { nativeDropdown: false });
 579         selector.on('selectr.select', option => {
 580           this.state.postForm.community_id = Number(option.value);
 581           this.setState(this.state);
 582         });
 583       }
 584     } else if (res.op == UserOperation.CreatePost) {
 585       let data = res.data as PostResponse;
 586       if (data.post.creator_id == UserService.Instance.user.id) {
 587         this.state.loading = false;
 588         this.props.onCreate(data.post.id);
 589       }
 590     } else if (res.op == UserOperation.EditPost) {
 591       let data = res.data as PostResponse;
 592       if (data.post.creator_id == UserService.Instance.user.id) {
 593         this.state.loading = false;
 594         this.props.onEdit(data.post);
 595       }
 596     } else if (res.op == UserOperation.Search) {
 597       let data = res.data as SearchResponse;
 598
 599       if (data.type_ == SearchType[SearchType.Posts]) {
 600         this.state.suggestedPosts = data.posts;
 601       } else if (data.type_ == SearchType[SearchType.Url]) {
 602         this.state.crossPosts = data.posts;
 603       }
 604       this.setState(this.state);
 605     } else if (res.op == UserOperation.GetSite) {
 606       let data = res.data as GetSiteResponse;
 607       this.state.enable_nsfw = data.site.enable_nsfw;
 608       this.setState(this.state);
 609     }
 610   }
 611 }