ui/src/components/comment-form.tsx

   1 import { Component, linkEvent } from 'inferno';
   2 import {
   3   CommentNode as CommentNodeI,
   4   CommentForm as CommentFormI,
   5 } from '../interfaces';
   6 import {
   7   capitalizeFirstLetter,
   8   mdToHtml,
   9   randomStr,
  10   markdownHelpUrl,
  11   toast,
  12   setupTribute,
  13 } from '../utils';
  14 import { WebSocketService, UserService } from '../services';
  15 import autosize from 'autosize';
  16 import Tribute from 'tributejs/src/Tribute.js';
  17 import { i18n } from '../i18next';
  18
  19 interface CommentFormProps {
  20   postId?: number;
  21   node?: CommentNodeI;
  22   onReplyCancel?(): any;
  23   edit?: boolean;
  24   disabled?: boolean;
  25 }
  26
  27 interface CommentFormState {
  28   commentForm: CommentFormI;
  29   buttonTitle: string;
  30   previewMode: boolean;
  31   imageLoading: boolean;
  32 }
  33
  34 export class CommentForm extends Component<CommentFormProps, CommentFormState> {
  35   private id = `comment-form-${randomStr()}`;
  36   private tribute: Tribute;
  37   private emptyState: CommentFormState = {
  38     commentForm: {
  39       auth: null,
  40       content: null,
  41       post_id: this.props.node
  42         ? this.props.node.comment.post_id
  43         : this.props.postId,
  44       creator_id: UserService.Instance.user
  45         ? UserService.Instance.user.id
  46         : null,
  47     },
  48     buttonTitle: !this.props.node
  49       ? capitalizeFirstLetter(i18n.t('post'))
  50       : this.props.edit
  51       ? capitalizeFirstLetter(i18n.t('edit'))
  52       : capitalizeFirstLetter(i18n.t('reply')),
  53     previewMode: false,
  54     imageLoading: false,
  55   };
  56
  57   constructor(props: any, context: any) {
  58     super(props, context);
  59
  60     this.tribute = setupTribute();
  61     this.state = this.emptyState;
  62
  63     if (this.props.node) {
  64       if (this.props.edit) {
  65         this.state.commentForm.edit_id = this.props.node.comment.id;
  66         this.state.commentForm.parent_id = this.props.node.comment.parent_id;
  67         this.state.commentForm.content = this.props.node.comment.content;
  68         this.state.commentForm.creator_id = this.props.node.comment.creator_id;
  69       } else {
  70         // A reply gets a new parent id
  71         this.state.commentForm.parent_id = this.props.node.comment.id;
  72       }
  73     }
  74   }
  75
  76   componentDidMount() {
  77     var textarea: any = document.getElementById(this.id);
  78     autosize(textarea);
  79     this.tribute.attach(textarea);
  80     textarea.addEventListener('tribute-replaced', () => {
  81       this.state.commentForm.content = textarea.value;
  82       this.setState(this.state);
  83       autosize.update(textarea);
  84     });
  85   }
  86
  87   render() {
  88     return (
  89       <div class="mb-3">
  90         <form onSubmit={linkEvent(this, this.handleCommentSubmit)}>
  91           <div class="form-group row">
  92             <div className={`col-sm-12`}>
  93               <textarea
  94                 id={this.id}
  95                 className={`form-control ${this.state.previewMode && 'd-none'}`}
  96                 value={this.state.commentForm.content}
  97                 onInput={linkEvent(this, this.handleCommentContentChange)}
  98                 onPaste={linkEvent(this, this.handleImageUploadPaste)}
  99                 required
 100                 disabled={this.props.disabled}
 101                 rows={2}
 102                 maxLength={10000}
 103               />
 104               {this.state.previewMode && (
 105                 <div
 106                   className="md-div"
 107                   dangerouslySetInnerHTML={mdToHtml(
 108                     this.state.commentForm.content
 109                   )}
 110                 />
 111               )}
 112             </div>
 113           </div>
 114           <div class="row">
 115             <div class="col-sm-12">
 116               <button
 117                 type="submit"
 118                 class="btn btn-sm btn-secondary mr-2"
 119                 disabled={this.props.disabled}
 120               >
 121                 {this.state.buttonTitle}
 122               </button>
 123               {this.state.commentForm.content && (
 124                 <button
 125                   className={`btn btn-sm mr-2 btn-secondary ${this.state
 126                     .previewMode && 'active'}`}
 127                   onClick={linkEvent(this, this.handlePreviewToggle)}
 128                 >
 129                   {i18n.t('preview')}
 130                 </button>
 131               )}
 132               {this.props.node && (
 133                 <button
 134                   type="button"
 135                   class="btn btn-sm btn-secondary mr-2"
 136                   onClick={linkEvent(this, this.handleReplyCancel)}
 137                 >
 138                   {i18n.t('cancel')}
 139                 </button>
 140               )}
 141               <a
 142                 href={markdownHelpUrl}
 143                 target="_blank"
 144                 class="d-inline-block float-right text-muted small font-weight-bold"
 145               >
 146                 {i18n.t('formatting_help')}
 147               </a>
 148               <form class="d-inline-block mr-2 float-right text-muted small font-weight-bold">
 149                 <label
 150                   htmlFor={`file-upload-${this.id}`}
 151                   className={`${UserService.Instance.user && 'pointer'}`}
 152                 >
 153                   {i18n.t('upload_image')}
 154                 </label>
 155                 <input
 156                   id={`file-upload-${this.id}`}
 157                   type="file"
 158                   accept="image/*,video/*"
 159                   name="file"
 160                   class="d-none"
 161                   disabled={!UserService.Instance.user}
 162                   onChange={linkEvent(this, this.handleImageUpload)}
 163                 />
 164               </form>
 165               {this.state.imageLoading && (
 166                 <svg class="icon icon-spinner spin">
 167                   <use xlinkHref="#icon-spinner"></use>
 168                 </svg>
 169               )}
 170             </div>
 171           </div>
 172         </form>
 173       </div>
 174     );
 175   }
 176
 177   handleCommentSubmit(i: CommentForm, event: any) {
 178     event.preventDefault();
 179     if (i.props.edit) {
 180       WebSocketService.Instance.editComment(i.state.commentForm);
 181     } else {
 182       WebSocketService.Instance.createComment(i.state.commentForm);
 183     }
 184
 185     i.state.previewMode = false;
 186     i.state.commentForm.content = undefined;
 187     event.target.reset();
 188     i.setState(i.state);
 189     if (i.props.node) {
 190       i.props.onReplyCancel();
 191     }
 192
 193     autosize.update(document.querySelector('textarea'));
 194   }
 195
 196   handleCommentContentChange(i: CommentForm, event: any) {
 197     i.state.commentForm.content = event.target.value;
 198     i.setState(i.state);
 199   }
 200
 201   handlePreviewToggle(i: CommentForm, event: any) {
 202     event.preventDefault();
 203     i.state.previewMode = !i.state.previewMode;
 204     i.setState(i.state);
 205   }
 206
 207   handleReplyCancel(i: CommentForm) {
 208     i.props.onReplyCancel();
 209   }
 210
 211   handleImageUploadPaste(i: CommentForm, event: any) {
 212     let image = event.clipboardData.files[0];
 213     if (image) {
 214       i.handleImageUpload(i, image);
 215     }
 216   }
 217
 218   handleImageUpload(i: CommentForm, event: any) {
 219     let file: any;
 220     if (event.target) {
 221       event.preventDefault();
 222       file = event.target.files[0];
 223     } else {
 224       file = event;
 225     }
 226
 227     const imageUploadUrl = `/pictshare/api/upload.php`;
 228     const formData = new FormData();
 229     formData.append('file', file);
 230
 231     i.state.imageLoading = true;
 232     i.setState(i.state);
 233
 234     fetch(imageUploadUrl, {
 235       method: 'POST',
 236       body: formData,
 237     })
 238       .then(res => res.json())
 239       .then(res => {
 240         let url = `${window.location.origin}/pictshare/${res.url}`;
 241         let imageMarkdown =
 242           res.filetype == 'mp4' ? `[vid](${url}/raw)` : `![](${url})`;
 243         let content = i.state.commentForm.content;
 244         content = content ? `${content}\n${imageMarkdown}` : imageMarkdown;
 245         i.state.commentForm.content = content;
 246         i.state.imageLoading = false;
 247         i.setState(i.state);
 248         var textarea: any = document.getElementById(i.id);
 249         autosize.update(textarea);
 250       })
 251       .catch(error => {
 252         i.state.imageLoading = false;
 253         i.setState(i.state);
 254         toast(error, 'danger');
 255       });
 256   }
 257 }