ui/src/components/post-form.tsx

   1 import { Component, linkEvent } from 'inferno';
   2 import { PostListings } from './post-listings';
   3 import { Subscription } from "rxjs";
   4 import { retryWhen, delay, take } from 'rxjs/operators';
   5 import { PostForm as PostFormI, Post, PostResponse, UserOperation, Community, ListCommunitiesResponse, ListCommunitiesForm, SortType, SearchForm, SearchType, SearchResponse } from '../interfaces';
   6 import { WebSocketService, UserService } from '../services';
   7 import { msgOp, getPageTitle, debounce, capitalizeFirstLetter } from '../utils';
   8 import * as autosize from 'autosize';
   9 import { i18n } from '../i18next';
  10 import { T } from 'inferno-i18next';
  11
  12 interface PostFormProps {
  13   post?: Post; // If a post is given, that means this is an edit
  14   prevCommunityName?: string;
  15   onCancel?(): any;
  16   onCreate?(id: number): any;
  17   onEdit?(post: Post): any;
  18 }
  19
  20 interface PostFormState {
  21   postForm: PostFormI;
  22   communities: Array<Community>;
  23   loading: boolean;
  24   suggestedTitle: string;
  25   suggestedPosts: Array<Post>;
  26 }
  27
  28 export class PostForm extends Component<PostFormProps, PostFormState> {
  29
  30   private subscription: Subscription;
  31   private emptyState: PostFormState = {
  32     postForm: {
  33       name: null,
  34       nsfw: false,
  35       auth: null,
  36       community_id: null,
  37       creator_id: (UserService.Instance.user) ? UserService.Instance.user.id : null,
  38     },
  39     communities: [],
  40     loading: false,
  41     suggestedTitle: undefined,
  42     suggestedPosts: [],
  43   }
  44
  45   constructor(props: any, context: any) {
  46     super(props, context);
  47
  48     this.state = this.emptyState;
  49
  50     if (this.props.post) {
  51       this.state.postForm = {
  52         body: this.props.post.body,
  53         name: this.props.post.name,
  54         community_id: this.props.post.community_id,
  55         edit_id: this.props.post.id,
  56         creator_id: this.props.post.creator_id,
  57         url: this.props.post.url,
  58         nsfw: this.props.post.nsfw,
  59         auth: null
  60       }
  61     }
  62
  63     this.subscription = WebSocketService.Instance.subject
  64       .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
  65       .subscribe(
  66         (msg) => this.parseMessage(msg),
  67         (err) => console.error(err),
  68         () => console.log('complete')
  69       );
  70
  71       let listCommunitiesForm: ListCommunitiesForm = {
  72         sort: SortType[SortType.TopAll],
  73         limit: 9999,
  74       }
  75
  76       WebSocketService.Instance.listCommunities(listCommunitiesForm);
  77   }
  78
  79   componentDidMount() {
  80     autosize(document.querySelectorAll('textarea'));
  81   }
  82
  83   componentWillUnmount() {
  84     this.subscription.unsubscribe();
  85   }
  86
  87   render() {
  88     return (
  89       <div>
  90         <form onSubmit={linkEvent(this, this.handlePostSubmit)}>
  91           <div class="form-group row">
  92             <label class="col-sm-2 col-form-label"><T i18nKey="url">#</T></label>
  93             <div class="col-sm-10">
  94               <input type="url" class="form-control" value={this.state.postForm.url} onInput={linkEvent(this, debounce(this.handlePostUrlChange))} />
  95               {this.state.suggestedTitle &&
  96                 <div class="mt-1 text-muted small font-weight-bold pointer" onClick={linkEvent(this, this.copySuggestedTitle)}><T i18nKey="copy_suggested_title" interpolation={{title: this.state.suggestedTitle}}>#</T></div>
  97               }
  98             </div>
  99           </div>
 100           <div class="form-group row">
 101             <label class="col-sm-2 col-form-label"><T i18nKey="title">#</T></label>
 102             <div class="col-sm-10">
 103               <textarea value={this.state.postForm.name} onInput={linkEvent(this, debounce(this.handlePostNameChange))} class="form-control" required rows={2} minLength={3} maxLength={100} />
 104               {this.state.suggestedPosts.length > 0 &&
 105                 <>
 106                   <div class="my-1 text-muted small font-weight-bold"><T i18nKey="related_posts">#</T></div>
 107                   <PostListings posts={this.state.suggestedPosts} />
 108                 </>
 109               }
 110             </div>
 111           </div>
 112           <div class="form-group row">
 113             <label class="col-sm-2 col-form-label"><T i18nKey="body">#</T></label>
 114             <div class="col-sm-10">
 115               <textarea value={this.state.postForm.body} onInput={linkEvent(this, this.handlePostBodyChange)} class="form-control" rows={4} maxLength={10000} />
 116             </div>
 117           </div>
 118           {/* Cant change a community from an edit */}
 119           {!this.props.post &&
 120             <div class="form-group row">
 121             <label class="col-sm-2 col-form-label"><T i18nKey="community">#</T></label>
 122             <div class="col-sm-10">
 123               <select class="form-control" value={this.state.postForm.community_id} onInput={linkEvent(this, this.handlePostCommunityChange)}>
 124                 {this.state.communities.map(community =>
 125                   <option value={community.id}>{community.name}</option>
 126                 )}
 127               </select>
 128             </div>
 129             </div>
 130             }
 131           <div class="form-group row">
 132             <div class="col-sm-10">
 133               <div class="form-check">
 134                 <input class="form-check-input" type="checkbox" checked={this.state.postForm.nsfw} onChange={linkEvent(this, this.handlePostNsfwChange)}/>
 135                 <label class="form-check-label"><T i18nKey="nsfw">#</T></label>
 136               </div>
 137             </div>
 138           </div>
 139           <div class="form-group row">
 140             <div class="col-sm-10">
 141               <button type="submit" class="btn btn-secondary mr-2">
 142               {this.state.loading ?
 143               <svg class="icon icon-spinner spin"><use xlinkHref="#icon-spinner"></use></svg> :
 144               this.props.post ? capitalizeFirstLetter(i18n.t('save')) : capitalizeFirstLetter(i18n.t('create'))}</button>
 145               {this.props.post && <button type="button" class="btn btn-secondary" onClick={linkEvent(this, this.handleCancel)}><T i18nKey="cancel">#</T></button>}
 146             </div>
 147           </div>
 148         </form>
 149       </div>
 150     );
 151   }
 152
 153   handlePostSubmit(i: PostForm, event: any) {
 154     event.preventDefault();
 155     if (i.props.post) {
 156       WebSocketService.Instance.editPost(i.state.postForm);
 157     } else {
 158       WebSocketService.Instance.createPost(i.state.postForm);
 159     }
 160     i.state.loading = true;
 161     i.setState(i.state);
 162   }
 163
 164   copySuggestedTitle(i: PostForm) {
 165     i.state.postForm.name = i.state.suggestedTitle;
 166     i.state.suggestedTitle = undefined;
 167     i.setState(i.state);
 168   }
 169
 170   handlePostUrlChange(i: PostForm, event: any) {
 171     i.state.postForm.url = event.target.value;
 172     getPageTitle(i.state.postForm.url).then(d => {
 173       i.state.suggestedTitle = d;
 174       i.setState(i.state);
 175     });
 176     i.setState(i.state);
 177   }
 178
 179   handlePostNameChange(i: PostForm, event: any) {
 180     i.state.postForm.name = event.target.value;
 181     let form: SearchForm = {
 182       q: i.state.postForm.name,
 183       type_: SearchType[SearchType.Posts],
 184       sort: SortType[SortType.TopAll],
 185       community_id: i.state.postForm.community_id,
 186       page: 1,
 187       limit: 6,
 188     };
 189
 190     if (i.state.postForm.name !== '') {
 191       WebSocketService.Instance.search(form);
 192     } else {
 193       i.state.suggestedPosts = [];
 194     }
 195
 196     i.setState(i.state);
 197   }
 198
 199   handlePostBodyChange(i: PostForm, event: any) {
 200     i.state.postForm.body = event.target.value;
 201     i.setState(i.state);
 202   }
 203
 204   handlePostCommunityChange(i: PostForm, event: any) {
 205     i.state.postForm.community_id = Number(event.target.value);
 206     i.setState(i.state);
 207   }
 208
 209   handlePostNsfwChange(i: PostForm, event: any) {
 210     i.state.postForm.nsfw = event.target.checked;
 211     i.setState(i.state);
 212   }
 213
 214   handleCancel(i: PostForm) {
 215     i.props.onCancel();
 216   }
 217
 218   parseMessage(msg: any) {
 219     let op: UserOperation = msgOp(msg);
 220     if (msg.error) {
 221       alert(i18n.t(msg.error));
 222       this.state.loading = false;
 223       this.setState(this.state);
 224       return;
 225     } else if (op == UserOperation.ListCommunities) {
 226       let res: ListCommunitiesResponse = msg;
 227       this.state.communities = res.communities;
 228       if (this.props.post) {
 229         this.state.postForm.community_id = this.props.post.community_id;
 230       } else if (this.props.prevCommunityName) {
 231         let foundCommunityId = res.communities.find(r => r.name == this.props.prevCommunityName).id;
 232         this.state.postForm.community_id = foundCommunityId;
 233       } else {
 234         this.state.postForm.community_id = res.communities[0].id;
 235       }
 236       this.setState(this.state);
 237     } else if (op == UserOperation.CreatePost) {
 238       this.state.loading = false;
 239       let res: PostResponse = msg;
 240       this.props.onCreate(res.post.id);
 241     } else if (op == UserOperation.EditPost) {
 242       this.state.loading = false;
 243       let res: PostResponse = msg;
 244       this.props.onEdit(res.post);
 245     } else if (op == UserOperation.Search) {
 246       let res: SearchResponse = msg;
 247       this.state.suggestedPosts = res.posts;
 248       this.setState(this.state);
 249     }
 250   }
 251
 252 }
 253
 254